CN113499624B - Multistage mixed fertilizer filtering system and operation method thereof - Google Patents
Multistage mixed fertilizer filtering system and operation method thereof Download PDFInfo
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- CN113499624B CN113499624B CN202110601796.6A CN202110601796A CN113499624B CN 113499624 B CN113499624 B CN 113499624B CN 202110601796 A CN202110601796 A CN 202110601796A CN 113499624 B CN113499624 B CN 113499624B
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 257
- 238000001914 filtration Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims description 20
- 239000007788 liquid Substances 0.000 claims abstract description 66
- 238000003756 stirring Methods 0.000 claims abstract description 52
- 238000004140 cleaning Methods 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 60
- 239000007787 solid Substances 0.000 claims description 23
- 238000012544 monitoring process Methods 0.000 claims description 12
- 239000002893 slag Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 11
- 239000010419 fine particle Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 230000002262 irrigation Effects 0.000 description 5
- 238000003973 irrigation Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003116 impacting effect Effects 0.000 description 4
- 239000013049 sediment Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 230000004720 fertilization Effects 0.000 description 2
- 239000003621 irrigation water Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/085—Funnel filters; Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fertilizing (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to a multistage mixed fertilizer filtering system which comprises a mixed fertilizer container, a multistage filter, a fertilizer suction pipe, a stirring knife, a cleaning brush and a driving mechanism, wherein the multistage filter, the stirring knife and the cleaning brush are uniformly distributed in the mixed fertilizer container; the fertilizer suction port of the fertilizer suction pipe extends into the multistage filter and pumps and discharges the fertilizer liquid filtered by the multistage filter. The invention has the beneficial effects that: the fertilizer can be fully dissolved under the stirring action of the stirring knife, meanwhile, after undissolved fine particles are filtered by the multi-stage filter, fertilizer liquid enters the fertilizer suction pipe again, the blockage of a pipeline can be effectively prevented, the operation efficiency of equipment is improved, and the maintenance cost of the equipment is reduced; the cleaning brush attached to the bottom of the mixed fertilizer container not only has the functions of cleaning and stirring, but also does not damage the bottom of the mixed fertilizer container.
Description
Technical Field
The invention relates to the field of agricultural irrigation, in particular to a multistage mixed fertilizer filtering system and an operation method thereof.
Background
In the application process of the water and fertilizer integration technology, various solid fertilizers are often required to be dissolved in irrigation water to supplement water and nutrients for crops. At present, the method for dissolving solid fertilizer is mainly to pour the fertilizer into an established water pool or plastic tank, and then stir and dissolve the fertilizer by using a stirrer, and the method can dissolve a large amount of solid fertilizer, but has some problems: for example when fertilizer pours into directly sinking the bottom of the pool or tank bottoms, the mixer is very difficult to the fertilizer of bottom and plays a role, leads to still remaining fertilizer after the fertilization completion in the pond or jar, and not only wash inconveniently, long still easy adhesion in the pond wall or irritate the wall, the tiny microorganism of growing. In addition, fertilizer is discharged along with the stirring process, fertilizer particles which are not completely dissolved enter a filter or even a pipeline along with water, so that the blockage situation is easy to occur, and the irrigation and fertilization efficiency is influenced.
Therefore, a multi-stage mixed fertilizer filtering system and an operation method are needed, which can dissolve solid fertilizer in irrigation water and solve the problem of blockage of irrigation equipment.
Disclosure of Invention
The invention aims to provide a multi-stage mixed fertilizer filtering system and an operation method thereof, so as to overcome the defects in the prior art.
The technical scheme for solving the technical problems is as follows: a multi-stage mixed fertilizer filtering system comprises a mixed fertilizer container, a multi-stage filter, a fertilizer suction pipe, a stirring knife, a cleaning brush and a driving mechanism, wherein the multi-stage filter, the stirring knife and the cleaning brush are uniformly distributed in the mixed fertilizer container; the fertilizer suction port of the fertilizer suction pipe extends into the multistage filter and pumps and discharges the fertilizer liquid filtered by the multistage filter.
The invention has the beneficial effects that:
the fertilizer can be fully dissolved under the stirring action of the stirring knife, meanwhile, after undissolved fine particles are filtered by the multi-stage filter, fertilizer liquid enters the fertilizer suction pipe again, the blockage of a pipeline can be effectively prevented, the operation efficiency of equipment is improved, and the maintenance cost of the equipment is reduced;
the cleaning brush is attached to the bottom wall of the mixed fertilizer container in a clinging mode, fertilizer particles can often precipitate at the bottom of the mixed fertilizer container in the mixed fertilizer process, the stirring knife cannot be attached to the bottom of the mixed fertilizer container in a clinging mode to stir, otherwise the bottom of the mixed fertilizer container is easy to damage, the cleaning brush attached to the bottom of the mixed fertilizer container can have the functions of cleaning and stirring, and the bottom of the mixed fertilizer container cannot be damaged.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the diameter of the cleaning brush is larger than the inner diameter of the fertilizer mixing container.
Adopt above-mentioned further beneficial effect to do: ensure that the cleaning brush can clean the adhered matters on the inner wall of the fertilizer mixing container.
Further, the multistage filter comprises a first stage filter, a second stage filter and a third stage filter, the first stage filter comprises a filter disc and a first fixed cylinder, the diameter of the filter disc is smaller than the inner diameter of the fertilizer mixing container, and the filter disc is sleeved on the first fixed cylinder; the second-stage filter comprises a filter hopper and a second fixed cylinder, and the lower port of the filter hopper is connected with the upper port of the second fixed cylinder; the lower section of the third-stage filter is a solid section, the upper section of the third-stage filter is a filter cylinder, and the wall of the filter cylinder is provided with holes; the first fixed cylinder and the second fixed cylinder are fixedly sleeved on the solid section from outside to inside in sequence; the filter hopper surrounds the filter cartridge, and a fertilizer suction port of the fertilizer suction pipe extends into the filter cartridge;
the filtering precision of the filter disc, the filter hopper and the filter cartridge is gradually improved; the fertilizer mixing container is provided with a fertilizer inlet and a water inlet, the fertilizer inlet is positioned below the filter disc, and the water inlet is positioned above the filter disc; the fertilizer inlet and the water inlet are respectively connected with a fertilizer inlet pipe and a water inlet pipe.
Adopt above-mentioned further beneficial effect to do: the gap between the filter disc and the inner wall of the mixed fertilizer container can prevent the filter disc from impacting the inner wall of the mixed fertilizer container to deform in the rotating process and prevent the mixed fertilizer container from cracking to leak water due to the structural form;
the solid section is used as a connecting part to be connected with the first-stage filter and the second-stage filter, and can play a role in blocking to ensure that the fertilizer liquid after the three-stage filtration is left in the filter cylinder;
the fertilizer inlet is lower than the height of the filter disc, so that the added fertilizer is ensured to be under the filter disc, and the remaining particles which are not dissolved during stirring are also retained under the filter disc, thereby reducing the risk of blockage of a filter system;
the water inlet is connected with the water inlet pipe, so that the added clean water can continuously flush the filter disc, the risk of blockage of the filter disc is reduced, and the filtering efficiency of the filter disc is improved;
the fertilizer liquid mixed by stirring firstly passes through the filter disc, then passes through the filter hopper, finally passes through the filter cartridge, and is subjected to three-stage filtration and then is used for fertilizing and irrigating plants through the pipeline, so that undissolved fine particles in the fertilizer liquid are greatly reduced, and the blocking fault is reduced.
Further, the outer edge of the filter disc is wrapped with a rubber ring.
Adopt above-mentioned further beneficial effect to do: on one hand, the situation that undissolved coarse particles in the fertilizer liquid enter the upper layer from gaps between the outer edge of the filter disc and the inner wall of the fertilizer mixing container to influence the filtering efficiency is avoided; on the other hand, the filter disc is prevented from directly impacting the inner wall of the fertilizer mixing container to deform when eccentrically rotating.
Further, first order filter still includes the bracing piece, sets up many spinal branchs vaulting pole on the filter disc, and every bracing piece all is fixed mutually with a fixed section of thick bamboo.
Adopt above-mentioned further beneficial effect to do: prevent that the filter disc from bearing water pressure and warping in the rotation process, influencing filtration efficiency.
Further, the stirring knife and the cleaning brush are both fixed on the solid section; the driving mechanism is fixed with the filter cylinder.
Adopt above-mentioned further beneficial effect to do: after the driving mechanism is started, the driving mechanism can drive the stirring knife, the cleaning brush and the multi-stage filter to rotate simultaneously, so that the fertilizer liquid can be stirred and mixed on one hand; on the other hand, the filtering of the fertilizer liquid can be accelerated, and the filtering efficiency is improved.
Furthermore, a positioning pipe is arranged on the axis of the rotating shaft in the filter cylinder; the fertilizer suction pipe is arranged in the positioning pipe in a penetrating way.
Adopt above-mentioned further beneficial effect to do: ensure to inhale fertile pipe and inhale fertile in-process rivers smooth-going, reduce and overflow the resistance, can not swing striking cartridge filter inner wall, avoided inhaling fertile pipe simultaneously and produced local easy damage of buckling.
Furthermore, the filtering holes on the filtering hopper are linear filtering holes.
Furthermore, a solid section of the third-stage filter is provided with a through slag discharge hole along the axial direction; a detachable plugging structure is arranged in the slag discharging hole.
Adopt above-mentioned further beneficial effect to do: when the filter cartridge needs to be cleaned, the plugging structure is disassembled, and residues are discharged into the fertilizer mixing container through the residue discharge hole and are stirred and dissolved again.
Further comprises an EC sensor, a return pipe, a first valve, a second valve, a third valve, a fourth valve, a fifth valve and a controller, wherein the EC sensor and the first valve are sequentially arranged on the fertilizer suction pipe along the flow direction of the fluid inside the fertilizer suction pipe, the third valve and the fourth valve are sequentially arranged on the water inlet pipe along the flow direction of the fluid inside the fertilizer suction pipe, one end of the backflow pipe is communicated with the fertilizer suction pipe, the communication point of the backflow pipe and the fertilizer suction pipe is positioned between the EC sensor and the first valve, the other end of the backflow pipe is communicated with the water inlet pipe, the communication point of the backflow pipe and the water inlet pipe is positioned between the third valve and the fourth valve, and the backflow pipe is provided with a second valve; the fertilizer inlet pipe is provided with a fifth valve, and the EC sensor, the first valve, the second valve, the third valve, the fourth valve and the fifth valve are respectively electrically connected with the controller.
Adopt above-mentioned further beneficial effect to do:
monitoring the concentration of the fertilizer liquid through an EC sensor, if the EC value is higher than a set value, closing a first valve, opening a second valve and a fourth valve, closing the second valve after the fertilizer liquid flows back, opening a third valve, adding a certain amount of water while stirring to dilute the fertilizer liquid, then closing the third valve, opening the first valve to continuously pump the fertilizer liquid filtered by a multi-stage filter, monitoring the concentration of the fertilizer liquid again through the EC sensor, and if the EC value is still higher than the set value, repeating the water adding step until the EC value of the fertilizer liquid reaches the set value, and closing the fourth valve;
if the EC value is lower than the set value, closing the first valve, opening the second valve and the fourth valve, closing the second valve after the fertilizer liquid flows back, opening the fifth valve, continuously adding a certain amount of fertilizer for stirring and dissolving, then closing the fifth valve, opening the first valve to pump out the fertilizer liquid filtered by the multi-stage filter, monitoring the concentration of the fertilizer liquid again through an EC sensor, if the EC value is still lower than the set value, repeating the fertilizer adding step until the EC value of the fertilizer liquid reaches the set value, and closing the fourth valve;
the concentration of the irrigation fertilizer liquid is ensured to reach the standard, and the intelligent degree is high;
the back flow pipe is mainly used for not reaching the fertilizer liquid of concentration and flowing back to mixing in the fertile container, further mixes the filtration, when filtration system appears the jam condition, can provide pressure water through the inlet tube and carry out the back flush to filtration system.
An operation method of a multi-stage mixed fertilizer filtering system comprises the following steps:
s100, closing the fifth valve, the first valve and the second valve, opening the third valve and the fourth valve, adding a certain amount of water into the fertilizer mixing container, and closing the third valve and the fourth valve;
s200, starting a driving mechanism, and driving a stirring knife and a cleaning brush to rotate in water in the fertilizer mixing container through the driving mechanism;
s300, opening a fifth valve, continuously adding fertilizer into the mixed fertilizer container through a fertilizer inlet pipe, dissolving the fertilizer into water in the mixed fertilizer container along with the rotation of the stirring knife to form a fertilizer solution, and closing the fifth valve after the fertilizer is completely added;
s400, opening a first valve to pump out the fertilizer liquid filtered by the multistage filter after the stirring knife stirs for a certain time;
monitoring the concentration of the fertilizer liquid through an EC sensor, if the EC value is higher than a set value, closing a first valve, opening a second valve and a fourth valve, closing the second valve after the fertilizer liquid flows back, opening a third valve, adding a certain amount of water while stirring to dilute the fertilizer liquid, then closing the third valve, opening the first valve to continuously pump the fertilizer liquid filtered by a multi-stage filter, monitoring the concentration of the fertilizer liquid again through the EC sensor, and if the EC value is still higher than the set value, repeating the water adding step until the EC value of the fertilizer liquid reaches the set value, and closing the fourth valve;
if the EC value is lower than the set value, closing the first valve, opening the second valve and the fourth valve, closing the second valve after the fertilizer liquid flows back, opening the fifth valve, continuing to add a certain amount of fertilizer for stirring and dissolving, then closing the fifth valve, opening the first valve to pump out the fertilizer liquid filtered by the multi-stage filter, monitoring the concentration of the fertilizer liquid again through an EC sensor, if the EC value is still lower than the set value, repeating the fertilizer adding step until the EC value of the fertilizer liquid reaches the set value, and closing the fourth valve.
Adopt above-mentioned further beneficial effect to do: the concentration of the irrigation fertilizer liquid is ensured to reach the standard, and the intelligent degree is high; after undissolved fine particles are filtered by the multi-stage filter, fertilizer liquid enters the fertilizer suction pipe again, so that the blockage of the pipeline can be effectively prevented, the operation efficiency of equipment is improved, and the maintenance cost of the equipment is reduced.
Drawings
FIG. 1 is a block diagram of a multi-stage fertilizer mixing and filtering system according to the present invention;
FIG. 2 is a block diagram of a first stage filter according to the present invention;
FIG. 3 is a block diagram of a second stage filter according to the present invention;
FIG. 4 is a block diagram of a third stage filter according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the fertilizer mixing device comprises a fertilizer mixing container, 110, a fertilizer inlet, 120, a water inlet, 130, a fertilizer inlet pipe, 140, a water inlet pipe, 2, a multi-stage filter, 210, a first-stage filter, 211, a filter disc, 212, a first fixed barrel, 213, a support rod, 220, a second-stage filter, 221, a filter hopper, 2211, a linear filter hole, 222, a second fixed barrel, 230, a third-stage filter, 231, a solid section, 2311, a slag discharge hole, 232, a filter barrel, 2321, a positioning pipe, 3, a fertilizer suction pipe, 4, a stirring knife, 5, a cleaning brush, 6, a driving mechanism, 610, a support beam, 620, a motor, 630, a transmission chain, 7, an EC sensor, 8, a return pipe, 9, a first valve, 10, a second valve, 11, a third valve, 12, a fourth valve, 13, a fifth valve, 14, a controller, 15 and a sixth valve.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, a multi-stage fertilizer mixing and filtering system comprises a fertilizer mixing container 1, a multi-stage filter 2, a fertilizer suction pipe 3, a stirring knife 4, a cleaning brush 5 and a driving mechanism 6, wherein the multi-stage filter 2, the stirring knife 4 and the cleaning brush 5 are uniformly distributed in the fertilizer mixing container 1;
the cleaning brush 5 is tightly attached to the bottom wall of the mixed fertilizer container 1, because fertilizer particles often precipitate at the bottom of the mixed fertilizer container 1 in the fertilizer mixing process, and the stirring knife 4 cannot be tightly attached to the bottom of the mixed fertilizer container 1 for stirring, otherwise the bottom of the mixed fertilizer container 1 is easily damaged, the cleaning brush 5 tightly attached to the bottom of the mixed fertilizer container 1 not only has the functions of cleaning and stirring, but also cannot damage the bottom of the mixed fertilizer container 1;
the stirring knife 4 and the cleaning brush 5 are driven by the driving mechanism 6 to rotate in the fertilizer mixing container 1;
the fertilizer suction port of the fertilizer suction pipe 3 extends into the multistage filter 2 and pumps and discharges the fertilizer liquid filtered by the multistage filter 2.
Example 2
As shown in fig. 1, this embodiment is a further improvement on embodiment 1, and specifically includes the following steps:
the diameter of the cleaning brush 5 is larger than the inner diameter of the mixed fertilizer container 1, so that the cleaning brush 5 can clean the adhered matters on the inner wall of the mixed fertilizer container 1.
Example 3
As shown in fig. 1 to 4, this embodiment is a further improvement on embodiment 1 or 2, and specifically includes the following steps:
the multistage filter 2 comprises a first stage filter 210, a second stage filter 220 and a third stage filter 230, wherein the first stage filter 210 comprises a filter disc 211 and a first fixed cylinder 212, the diameter of the filter disc 211 is smaller than the inner diameter of the fertilizer mixing container 1, and the gap between the filter disc 211 and the inner wall of the fertilizer mixing container 1 is determined by the height of the fertilizer mixing container 1, the higher the height is, the larger the difference is, and the smaller the difference is; the structural form can avoid the deformation of the filter disc 211 caused by impacting the inner wall of the mixed fertilizer container 1 in the rotating process, and the water leakage caused by cracks on the mixed fertilizer container 1 can be avoided; the filter disc 211 is sleeved on the first fixed cylinder 212;
the second-stage filter 220 comprises a filter hopper 221 and a second fixed cylinder 222, wherein the lower port of the filter hopper 221 is connected with the upper port of the second fixed cylinder 222; the lower section of the third-stage filter 230 is a solid section 231, the upper section is a filter cartridge 232, and the wall of the filter cartridge 232 is provided with holes; the first fixed cylinder 212 and the second fixed cylinder 222 are sequentially fixedly sleeved on the solid section 231 from outside to inside, the first fixed cylinder 212, the second fixed cylinder 222 and the solid section 231 are connected through bolts, and at the moment, the first fixed cylinder 212, the second fixed cylinder 222 and the solid section 231 are provided with screw holes;
generally, the outer cross-sectional dimension of the solid segment 231 corresponds to the inner cross-sectional dimension of the second stationary barrel 222, and the outer cross-sectional dimension of the second stationary barrel 222 corresponds to the inner cross-sectional dimension of the first stationary barrel 212; the solid section 231 serves as a connecting part to connect the first-stage filter 210 and the second-stage filter 220, and can play a role of blocking to ensure that the fertilizer liquid after the three-stage filtration is left in the filter cylinder 232; the filter hopper 221 surrounds the filter cylinder 232, and a fertilizer suction port of the fertilizer suction pipe 3 extends into the filter cylinder 232;
the filtration precision of the filter disc 211, the filter hopper 221 and the filter cartridge 232 is gradually increased, wherein the gradual increase of the filtration precision refers to: the size of the particles passing through the filter disc 211, the filter hopper 221 and the filter cartridge 232 is gradually reduced;
the fertilizer mixing container 1 is provided with a fertilizer inlet 110 and a water inlet 120, the fertilizer inlet 110 is positioned below the filter disc 211, the fertilizer inlet 110 is connected with the fertilizer inlet pipe 130, the height of the fertilizer inlet 110 is lower than that of the filter disc 211, so that the added fertilizer is ensured to be below the filter disc 211, the remaining particles which are not dissolved during stirring are also retained below the filter disc 211, and the risk of blocking of a filter system is reduced;
the water inlet 120 is positioned above the filter disc 211, and the water inlet 120 is connected with the water inlet pipe 140, so that the added clean water can continuously flush the filter disc 211, the risk of blockage of the filter disc 211 is reduced, and the filtering efficiency of the filter disc 211 is improved;
the fertilizer liquid mixed by stirring firstly passes through the filter disc 211, then passes through the filter hopper 221, finally passes through the filter cartridge 232, and is subjected to three-stage filtration and then is used for fertilizing and irrigating plants through a pipeline, so that undissolved fine particles in the fertilizer liquid are greatly reduced, and the blockage fault is reduced.
Example 4
As shown in fig. 1 to 4, this embodiment is a further improvement on embodiment 3, and specifically includes the following steps:
the outer edge of the filter disc 211 is covered with a rubber ring, so that on one hand, undissolved coarse particles in the fertilizer liquid are prevented from entering the upper layer from gaps between the outer edge of the filter disc 211 and the inner wall of the fertilizer mixing container 1 to influence the filtering efficiency; on the other hand, the filter disc 211 is prevented from directly impacting the inner wall of the fertilizer mixing container 1 to deform when eccentrically rotating.
Example 5
As shown in fig. 1 to 4, this embodiment is a further improvement on embodiment 3 or 4, and specifically includes the following steps:
the stirring blade 4 and the cleaning brush 5 are both fixed on the solid section 231; the driving mechanism 6 is fixed with the filter cylinder 232; after the driving mechanism 6 is started, the driving mechanism 6 can drive the stirring blade 4, the cleaning brush 5 and the multi-stage filter 2 to rotate simultaneously, so that the fertilizer liquid can be stirred and mixed on one hand; on the other hand, the filtering of the fertilizer liquid can be accelerated, and the filtering efficiency is improved.
Example 6
As shown in fig. 1 to 4, this embodiment is a further improvement on the basis of embodiment 3, 4 or 5, and specifically includes the following steps:
a positioning pipe 2321 is arranged on the rotation axis in the filter cartridge 232; inhale in fertilizer pipe 3 wears to locate registration arm 2321, ensure to inhale fertilizer pipe 3 and inhale fertile in-process rivers smooth-going, reduce the resistance that overflows, can not swing striking cartridge filter 232 inner wall, avoided simultaneously that fertilizer pipe 3 produces local the easy damage of buckling.
Example 7
As shown in fig. 1 to fig. 4, this embodiment is a further improvement on the basis of embodiment 3 or 4 or 5 or 6, and specifically includes the following steps:
the filtering holes of the filtering funnel 221 are linear filtering holes 2211, and usually, the linear filtering holes 2211 of the filtering funnel 221310 are distributed in a plurality of circles, and each circle has a plurality of linear filtering holes 2211.
Example 8
As shown in fig. 1 to 4, this embodiment is a further improvement on the basis of embodiment 3 or 4 or 5 or 6, and specifically includes the following steps:
a slag discharge hole 2311 which is through is axially arranged on the solid section 231 of the third-stage filter 230; arrange and set up the stifled structure of detachable stopper in the sediment hole 2311, the stifled structure of stopper can be the rubber buffer, also can be the bolt, if for the bolt, the bolt is located the lower extreme of solid section 231, and bolt and sediment hole 2311 threaded connection, when needing to wash cartridge filter 232, then unscrew the bolt, and the residue is arranged through sediment hole 2311 and is stirred once more in mixing fertile container 1 and dissolve.
Example 9
As shown in fig. 1 to 4, this embodiment is a further improvement on any one of embodiments 1 to 8, and specifically includes the following steps:
the multi-stage fertilizer mixing and filtering system further comprises an EC sensor 7, a return pipe 8, a first valve 9, a second valve 10, a third valve 11, a fourth valve 12, a fifth valve 13 and a controller 14, wherein the EC sensor 7 and the first valve 9 are sequentially arranged on the fertilizer suction pipe 3 along the flow direction of the fluid inside the fertilizer suction pipe, the third valve 11 and the fourth valve 12 are sequentially arranged on the water inlet pipe 140 along the flow direction of the fluid inside the fertilizer suction pipe, one end of the return pipe 8 is communicated with the fertilizer suction pipe 3, the communication point of the return pipe 8 and the fertilizer suction pipe 3 is positioned between the EC sensor 7 and the first valve 9, the other end of the return pipe 8 is communicated with the water inlet pipe 140, the communication point of the return pipe 8 and the water inlet pipe 140 is positioned between the third valve 11 and the fourth valve 12, and the second valve 10 is arranged on the return pipe 8; the fertilizer inlet pipe 130 is provided with a fifth valve 13, and the EC sensor 7, the first valve 9, the second valve 10, the third valve 11, the fourth valve 12 and the fifth valve 13 are respectively electrically connected with the controller 14; the return pipe 8 is mainly used for the fertilizer liquid that does not reach the concentration to flow back to mixing in fertile container 1, further mixing filters, when the filtration system appears the jam condition, can provide pressure water through inlet tube 140 and carry out the back flush to filtration system.
Example 10
As shown in fig. 1 to 4, this embodiment is a further improvement on embodiment 3, and specifically includes the following steps:
the first-stage filter 210 further comprises a support rod 213, wherein the filter disc 211 is provided with a plurality of support rods 213, each support rod 213 is fixed with the first fixing cylinder 212, and the filter disc 211 is prevented from being deformed due to water pressure bearing in the rotating process to influence the filtering efficiency.
Example 11
As shown in fig. 1 to 4, this embodiment is a further improvement on embodiment 3, and specifically includes the following steps:
the bottom of the fertilizer mixing container 1 is provided with a sixth valve 15, after the fertilizer mixing container 1 is cleaned, the sixth valve 15 can be opened to discharge sewage, and the sixth valve 15 is electrically connected with the controller 14.
Example 12
As shown in fig. 1 to 4, this embodiment is a further improvement on embodiment 3, and specifically includes the following steps:
the driving mechanism 6 comprises a supporting beam 610, a motor 620 and a transmission chain 630, the upper end of the filter cartridge 232 is rotatably connected with the supporting beam 610, the motor 620 is fixed on the supporting beam 610, the motor 620 is connected with the filter cartridge 232 through the transmission chain 630, after the motor 620 is started, the filter cartridge 232 can be driven to rotate through the transmission chain 630, and the motor 620 is electrically connected with the controller 14.
Example 13
An operation method of a multi-stage mixed fertilizer filtering system comprises the following steps:
s100, closing a fifth valve 13, a first valve 9, a second valve 10 and a sixth valve 15, opening a third valve 11 and a fourth valve 12, adding a certain amount of water into the fertilizer mixing container 1, wherein the water level is usually 1/2-2/3 of the height of the fertilizer mixing container 1, and closing the third valve 11 and the fourth valve 12;
s200, starting a driving mechanism 6, and driving a stirring knife 4 and a cleaning brush 5 to rotate in the water in the fertilizer mixing container 1 through the driving mechanism 6;
s300, opening a fifth valve 13, continuously adding fertilizer into the mixed fertilizer container 1 through a fertilizer inlet pipe 130, dissolving the fertilizer into water in the mixed fertilizer container 1 along with the rotation of the stirring knife 4 to form a fertilizer solution, and closing the fifth valve 13 after the fertilizer is completely added;
s400, after the stirring knife 4 stirs for a certain time, opening a first valve 9 to pump out the fertilizer liquid filtered by the multistage filter 2;
monitoring the concentration of the fertilizer liquid through an EC sensor 7, if the EC value is higher than a set value, closing a first valve 9, opening a second valve 10 and a fourth valve 12, after the fertilizer liquid flows back, closing the second valve 10, opening a third valve 11, adding a certain amount of water while stirring to dilute the fertilizer liquid, then closing the third valve 11, opening the first valve 9 to continuously pump out the fertilizer liquid filtered by the multistage filter 2, monitoring the concentration of the fertilizer liquid again through the EC sensor 7, and if the EC value is still higher than the set value, repeating the water adding step until the EC value of the fertilizer liquid reaches the set value, and closing the fourth valve 12;
if the EC value is lower than the set value, closing the first valve 9, opening the second valve 10 and the fourth valve 12, closing the second valve 10 after the fertilizer liquid is completely refluxed, opening the fifth valve 13, continuing to add a certain amount of fertilizer for stirring and dissolving, then closing the fifth valve 13, opening the first valve 9 to pump out the fertilizer liquid filtered by the multistage filter 2, monitoring the concentration of the fertilizer liquid again through the EC sensor 7, and if the EC value is still lower than the set value, repeating the fertilizer adding step until the EC value of the fertilizer liquid reaches the set value, and closing the fourth valve 12;
s500, when fertilizer in the fertilizer mixing container 1 is not completely dissolved in water in the fertilizer mixing container 1, opening a sixth valve 15 to discharge fertilizer residues;
s600, when the filter cylinder 232 is blocked, the fourth valve 12, the fifth valve 13 and the first valve 9 are closed, the slag discharge hole 2311, the third valve 11 and the second valve 10 are opened, then pressure water is injected to clean the filter cylinder 232, the first-stage filter 210 and the second-stage filter 220 are backwashed, and the washed residues are discharged through a slag discharge hole.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. The multistage mixed fertilizer filtering system is characterized by comprising a mixed fertilizer container (1), a multistage filter (2), a fertilizer suction pipe (3), a stirring knife (4), a cleaning brush (5) and a driving mechanism (6), wherein the multistage filter (2), the stirring knife (4) and the cleaning brush (5) are uniformly distributed in the mixed fertilizer container (1), the cleaning brush (5) is attached to the bottom wall of the mixed fertilizer container (1), and the stirring knife (4) and the cleaning brush (5) are driven by the driving mechanism (6) to rotate in the mixed fertilizer container (1); a fertilizer suction port of the fertilizer suction pipe (3) extends into the multistage filter (2) and pumps and discharges fertilizer liquid filtered by the multistage filter (2); the multistage filter (2) comprises a first stage filter (210), a second stage filter (220) and a third stage filter (230), the first stage filter (210) comprises a filter disc (211) and a first fixed cylinder (212), the diameter of the filter disc (211) is smaller than the inner diameter of the fertilizer mixing container (1), and the filter disc (211) is sleeved on the first fixed cylinder (212); the second-stage filter (220) comprises a filter hopper (221) and a second fixed cylinder (222), and the lower port of the filter hopper (221) is connected with the upper port of the second fixed cylinder (222); the lower section of the third-stage filter (230) is a solid section (231), the upper section of the third-stage filter is a filter cylinder (232), and the wall of the filter cylinder (232) is provided with holes; the first fixed cylinder (212) and the second fixed cylinder (222) are sequentially fixedly sleeved on the solid section (231) from outside to inside; the filter hopper (221) surrounds the filter cylinder (232), and a fertilizer suction port of the fertilizer suction pipe (3) extends into the filter cylinder (232); the driving mechanism (6) is fixed with the filter cylinder (232); the filtering precision of the filtering disc (211), the filtering hopper (221) and the filtering cylinder (232) is gradually improved; the fertilizer mixing container (1) is provided with a fertilizer inlet (110) and a water inlet (120), the fertilizer inlet (110) is positioned below the filter disc (211), and the water inlet (120) is positioned above the filter disc (211); the fertilizer inlet (110) and the water inlet (120) are respectively connected with a fertilizer inlet pipe (130) and a water inlet pipe (140); the stirring knife (4) is positioned below the filter disc (211); the filter disc (211) is continuously washed by the clean water added from the water inlet (120).
2. The multi-stage fertilizer mixing and filtering system of claim 1, wherein the outer edge of the filter disc (211) is wrapped with a rubber ring.
3. The multi-stage mixed fertilizer filtering system of claim 1, wherein the first stage filter (210) further comprises a support rod (213), the filter disc (211) is provided with a plurality of support rods (213), and each support rod (213) is fixed with the first fixing cylinder (212).
4. The multistage mixed fertilizer filtering system of claim 1, wherein the stirring blade (4) and the cleaning brush (5) are fixed on the solid section (231); the driving mechanism (6) is fixed with the filter cylinder (232).
5. The multi-stage mixed fertilizer filtering system of claim 4, wherein a positioning pipe (2321) is arranged on the axis of rotation in the filtering cylinder (232); the fertilizer suction pipe (3) is arranged in the positioning pipe (2321) in a penetrating way.
6. The multi-stage mixed fertilizer filtering system of claim 1, wherein the filtering holes on the filtering hopper (221) are linear filtering holes (2211).
7. The multi-stage mixed fertilizer filtering system of claim 1, wherein the solid section (231) of the third stage filter (230) is provided with a through slag discharge hole (2311) along the axial direction; a detachable plugging structure is arranged in the slag discharge hole (2311).
8. The multi-stage mixed fertilizer filtering system of any one of claims 1 to 7, further comprising an EC sensor (7), a return pipe (8), a first valve (9), a second valve (10), a third valve (11), a fourth valve (12), a fifth valve (13) and a controller (14), wherein the EC sensor (7) and the first valve (9) are sequentially arranged on the fertilizer suction pipe (3) along the flow direction of the internal fluid, the third valve (11) and the fourth valve (12) are sequentially arranged on the water inlet pipe (140) along the flow direction of the internal fluid, one end of the return pipe (8) is communicated with the fertilizer suction pipe (3), the communication point of the return pipe (8) and the fertilizer suction pipe (3) is located between the EC sensor (7) and the first valve (9), the other end of the return pipe (8) is communicated with the water inlet pipe (140), the communication point of the return pipe (8) and the water inlet pipe (140) is located between the third valve (11) and the fourth valve (12), and the second valve (10) is arranged on the water inlet pipe (8); a fifth valve (13) is arranged on the fertilizer inlet pipe (130), and the EC sensor (7), the first valve (9), the second valve (10), the third valve (11), the fourth valve (12) and the fifth valve (13) are respectively electrically connected with the controller (14).
9. A method of operating the multi-stage mixed fertilizer filtration system of claim 8, comprising the steps of:
s100, closing a fifth valve (13), a first valve (9) and a second valve (10), opening a third valve (11) and a fourth valve (12), adding a certain amount of water into a fertilizer mixing container (1), and closing the third valve (11) and the fourth valve (12);
s200, starting a driving mechanism (6), and driving a stirring knife (4) and a cleaning brush (5) to rotate in water in the fertilizer mixing container (1) through the driving mechanism (6);
s300, opening a fifth valve (13), continuously adding fertilizer into the fertilizer mixing container (1) through a fertilizer inlet pipe (130), dissolving the fertilizer into water in the fertilizer mixing container (1) along with the rotation of the stirring knife (4) to form a fertilizer solution, and closing the fifth valve (13) after the fertilizer is completely added;
s400, after the stirring knife (4) is stirred for a certain time, opening a first valve (9) to pump out the fertilizer liquid filtered by the multi-stage filter (2);
monitoring the concentration of the fertilizer liquid through an EC sensor (7), if the EC value is higher than a set value, closing a first valve (9), opening a second valve (10) and a fourth valve (12), closing the second valve (10) after the fertilizer liquid flows back, opening a third valve (11), adding a certain amount of water while stirring to dilute the fertilizer liquid, then closing the third valve (11), opening the first valve (9) to continuously pump out the fertilizer liquid filtered by the multistage filter (2), monitoring the concentration of the fertilizer liquid again through the EC sensor (7), and if the EC value is still higher than the set value, repeating the water adding step until the EC value of the fertilizer liquid reaches the set value and then closing the fourth valve (12);
if the EC value is lower than the set value, closing the first valve (9), opening the second valve (10) and the fourth valve (12), closing the second valve (10) after the fertilizer liquid is completely refluxed, opening the fifth valve (13), continuously adding a certain amount of fertilizer to be stirred and dissolved, then closing the fifth valve (13), opening the first valve (9) to pump out the fertilizer liquid filtered by the multistage filter (2), monitoring the concentration of the fertilizer liquid again through an EC sensor (7), and if the EC value is still lower than the set value, repeating the fertilizer adding step until the EC value of the fertilizer liquid reaches the set value, and closing the fourth valve (12).
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6217637B1 (en) * | 1999-03-10 | 2001-04-17 | Jerry L. Toney | Multiple stage high efficiency rotary filter system |
| JP2001225056A (en) * | 2000-02-15 | 2001-08-21 | Katsumi Iida | Method for treating liquid-containing waste |
| CN201398353Y (en) * | 2009-04-20 | 2010-02-10 | 杨征林 | Fertilizing tank matched with drop irrigation |
| CN201529437U (en) * | 2009-09-28 | 2010-07-21 | 许鸿涛 | Sea fresh water filter |
| CN106171233A (en) * | 2016-08-30 | 2016-12-07 | 嘉施利（新疆）水溶肥有限公司 | Constant concentration fertilizing equipment and constant concentration control method thereof for Water soluble fertilizer |
| CN107996115A (en) * | 2018-01-03 | 2018-05-08 | 山东农业大学 | A kind of novel intelligent high-efficiency complex fertilizer device |
| CN210470561U (en) * | 2019-08-22 | 2020-05-08 | 贵州工程应用技术学院 | Prevent blockking up semi-automatization fruit tree and plant drip irrigation equipment |
| CN210584520U (en) * | 2019-06-28 | 2020-05-22 | 泉州医学高等专科学校 | Biological cellulase refines and dissolves filter equipment with raw materials |
| CN211865001U (en) * | 2020-01-14 | 2020-11-06 | 黄山普米特新材料有限公司 | Mixed reaction device |
| CN213078675U (en) * | 2020-07-31 | 2021-04-30 | 唐山华洋自动化有限公司 | Heavy metal contaminated soil restoration test sample processing apparatus |
| CN213219217U (en) * | 2020-05-19 | 2021-05-18 | 东莞市亚洲制药有限公司 | Preparation facilities of two coptis oral liquids |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101228852A (en) * | 2001-09-12 | 2008-07-30 | 卡明斯科普有限公司 | Tub wheel filter assembly |
| EP1848472B1 (en) * | 2005-02-07 | 2015-04-01 | Hanuman LLC | Platelet rich plasma concentrate apparatus and method |
| US7981282B2 (en) * | 2006-04-25 | 2011-07-19 | Tm Industrial Supply, Inc. | Automatic slurry strainer |
| CN108619954A (en) * | 2018-06-28 | 2018-10-09 | 聂建姻 | A kind of new multistage stirring sewage-treatment plant |
-
2021
- 2021-05-31 CN CN202110601796.6A patent/CN113499624B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6217637B1 (en) * | 1999-03-10 | 2001-04-17 | Jerry L. Toney | Multiple stage high efficiency rotary filter system |
| JP2001225056A (en) * | 2000-02-15 | 2001-08-21 | Katsumi Iida | Method for treating liquid-containing waste |
| CN201398353Y (en) * | 2009-04-20 | 2010-02-10 | 杨征林 | Fertilizing tank matched with drop irrigation |
| CN201529437U (en) * | 2009-09-28 | 2010-07-21 | 许鸿涛 | Sea fresh water filter |
| CN106171233A (en) * | 2016-08-30 | 2016-12-07 | 嘉施利（新疆）水溶肥有限公司 | Constant concentration fertilizing equipment and constant concentration control method thereof for Water soluble fertilizer |
| CN107996115A (en) * | 2018-01-03 | 2018-05-08 | 山东农业大学 | A kind of novel intelligent high-efficiency complex fertilizer device |
| CN210584520U (en) * | 2019-06-28 | 2020-05-22 | 泉州医学高等专科学校 | Biological cellulase refines and dissolves filter equipment with raw materials |
| CN210470561U (en) * | 2019-08-22 | 2020-05-08 | 贵州工程应用技术学院 | Prevent blockking up semi-automatization fruit tree and plant drip irrigation equipment |
| CN211865001U (en) * | 2020-01-14 | 2020-11-06 | 黄山普米特新材料有限公司 | Mixed reaction device |
| CN213219217U (en) * | 2020-05-19 | 2021-05-18 | 东莞市亚洲制药有限公司 | Preparation facilities of two coptis oral liquids |
| CN213078675U (en) * | 2020-07-31 | 2021-04-30 | 唐山华洋自动化有限公司 | Heavy metal contaminated soil restoration test sample processing apparatus |
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