CN114618694B - Adjustable pump type impeller automatic adjusting device of horizontal decanter centrifuge and control method - Google Patents
Adjustable pump type impeller automatic adjusting device of horizontal decanter centrifuge and control method Download PDFInfo
- Publication number
- CN114618694B CN114618694B CN202011454166.2A CN202011454166A CN114618694B CN 114618694 B CN114618694 B CN 114618694B CN 202011454166 A CN202011454166 A CN 202011454166A CN 114618694 B CN114618694 B CN 114618694B
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- CN
- China
- Prior art keywords
- adjustable pump
- pump impeller
- driving device
- impeller
- eccentric disc
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 239000007791 liquid phase Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 12
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 3
- 238000001514 detection method Methods 0.000 claims description 6
- 238000005191 phase separation Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/04—Periodical feeding or discharging; Control arrangements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B13/00—Control arrangements specially designed for centrifuges; Programme control of centrifuges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention provides an automatic adjusting device of an adjustable pump impeller of a horizontal decanter centrifuge, which is arranged on a driving device of the adjustable pump impeller and comprises a driving device and a transmission gear set in transmission connection with the driving device, wherein the transmission gear set is in transmission connection with a transmission shaft of the adjustable pump impeller, the driving device is connected with a remote control box through a communication line, a sensor is connected to the control box and is assembled at a liquid phase outlet, and the driving device can rotate clockwise or anticlockwise. When the components of the separated materials change, the separation effect can also change, the diameter of the adjustable pump impeller can be automatically adjusted through the automatic adjusting device, the separation effect is further adjusted to an expected target value, the whole process is automatically carried out, the on-site on-duty monitoring of operators is not needed, and the labor cost is effectively saved.
Description
Technical Field
The invention relates to an automatic adjusting device and a control method for an adjustable pump type impeller of a horizontal decanter centrifuge, in particular to an automatic adjusting device and a control method, and belongs to the technical field of automatic control of engineering machinery.
Background
The three-phase horizontal spiral centrifugal machine is a horizontal spiral discharging and continuously running sedimentation device, and the working principle of the device is that a rotary drum and a spiral rotate at the same direction and high speed at a certain difference rotation speed, materials are continuously introduced into a spiral conveyor through a hollow feeding pipe and enter the rotary drum after being accelerated, under the action of centrifugal force, high-density solids are settled on the wall of the rotary drum to form a sediment layer, clear liquid with different two-phase densities form concentric rings, lighter liquid phase is positioned in an inner layer, and heavier liquid phase is positioned in an outer layer. The solid deposited on the rotary drum is continuously pushed to the cone end of the rotary drum by a screw conveyer, the solid is discharged out of the machine through a slag discharge port, the heavy phase liquid is discharged out of the machine by the pressure of an adjustable pump type impeller, and the light phase liquid is discharged out of the machine by gravity. The diameter of the adjustable pump impeller can be adjusted under the condition of machine operation to adjust the thickness of different liquid rings in the horizontal decanter centrifuge, so that the horizontal decanter centrifuge can be quickly adjusted without stopping the machine to achieve the optimal separation effect.
In general, the composition ratio of solid to liquid phase in the material is relatively stable, and the operating parameters of the machine can be basically unchanged after being carefully regulated and determined. However, under some special conditions, the material composition is unstable and frequently changes, such as oil-containing sludge treatment, and the operation parameters of the machine need to be continuously adjusted according to the separation effect. Wherein, the diameter of the adjustable pump impeller is adjusted manually by an operator according to the liquid phase separation effect. In the actual production process, the manual operation is required, the labor intensity is high, the reliability is low, and the degree of automation is low.
Disclosure of Invention
The invention aims to solve the technical problem that an operator is not required to manually adjust the diameter of an adjustable pump impeller, and the defects of the prior art are overcome, so that an automatic adjusting device for the diameter of the adjustable pump impeller and a control method are provided.
In order to solve the technical problems, the invention provides the following technical scheme:
The utility model provides an automatic regulating apparatus of adjustable pump formula impeller of spiral shell centrifuge crouches installs on adjustable pump formula impeller's drive arrangement, includes drive arrangement and transmission connection drive arrangement's drive gear group, the transmission shaft of adjustable pump formula impeller is connected in the drive gear group transmission, and drive arrangement passes through the control box of communication line connection distal end, even has the sensor on the control box, the sensor assembly is in liquid phase exit, drive arrangement can carry out clockwise or anticlockwise rotation.
The technical scheme of the invention is further defined as follows:
further, the transmission gear set mainly comprises a driving gear and a driven gear which are meshed with each other, the driving gear is arranged on a power output shaft of the driving device, and the driven gear is sleeved on a transmission shaft of the adjustable pump impeller.
Further, the driving device drives the adjusting tube to rotate through the driven gear, the eccentric disc is arranged on the adjusting tube and drives the eccentric disc to synchronously rotate through the positioning pin, the outer circle of the eccentric disc is loosely matched with the inner hole of the adjustable pump type impeller, relative sliding can be generated, the outer circle of the eccentric disc is concentric with the inner hole of the adjustable pump type impeller and has an eccentric distance with the inner hole of the eccentric disc and the rotation axis of the adjusting tube, and the rotation of the eccentric disc can drive the adjustable pump type impeller to rotate due to the eccentric distance, so that the radius of the adjustable pump type impeller can be changed.
Further, the adjustable pump impeller is provided with a U-shaped groove, a sliding block is arranged in the U-shaped groove, a round hole is formed in the middle of the sliding block and is connected with the sleeve through a pin shaft, the sleeve is a static piece, the rotation range of the adjustable pump impeller is limited by the sliding block, the sliding block can only move back and forth in the U-shaped groove, and the radius of the corresponding adjustable pump impeller is changed between a maximum value and a minimum value.
The automatic regulating method of the adjustable pump impeller of the horizontal decanter centrifuge, the sensor transmits the liquid phase separation detection result of liquid phase outlet back to the control box, after the control box compares the detection result with presume the goal value, the control box controls the driving device to rotate forward or backward, and then increase or reduce the diameter of the adjustable pump impeller, improve the separation effect, until reaching the goal value of expecting.
The technical scheme of the invention is further defined as follows:
Further, the driving device drives the adjustable pump impeller to rotate forwards or reversely through the transmission gear set, the diameter of the impeller can be increased or reduced by forward rotation, the diameter of the impeller can be reduced or increased by reverse rotation, and the limit switch limits the maximum diameter and the minimum diameter range of the adjustable pump impeller.
Compared with the prior art, the technical scheme provided by the invention has the following technical effects: when the components of the separated materials change, the separation effect can also change, the diameter of the adjustable pump impeller can be automatically adjusted through the automatic adjusting device, the separation effect is further adjusted to an expected target value, the whole process is automatically carried out, the on-site on-duty monitoring of operators is not needed, and the labor cost is effectively saved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a view showing an impeller adjusting structure.
Description of the drawings: 1. the device comprises a base, an adjustable pump impeller, a liquid phase outlet, a sensor, a driving gear, a driving device, a driven gear, a control box, an adjusting pipe 9, an eccentric disc 10, a locating pin 11, a sliding block 12, a pin shaft 13 and a sleeve 14.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings:
The embodiment provides an automatic adjusting device and a control method for an adjustable pump type impeller. The automatic adjustable pump impeller adjusting device comprises an adjustable pump impeller 2, a driving device 6, a transmission device, a sensor 4 and a control box 8, wherein the transmission device comprises a driving gear 5 and a driven gear 7.
The automatic control method comprises the following steps: the control box 8 controls the driving device 6 to rotate in the forward and reverse directions, the driving device 6 is arranged on the base 1, a driving gear 5 is arranged on an output shaft of the driving device 6, the driving gear 5 is in meshed connection with a driven gear 7, the driven gear 7 is sleeved on a transmission shaft of the adjustable pump type impeller 2, the driving device 6 can drive the adjustable pump type impeller 2 to rotate in the forward and reverse directions through the transmission device, the impeller diameter can be increased by forward rotation, the impeller diameter can be reduced by reverse rotation, and meanwhile, a limit switch is arranged, and only the impeller diameter is allowed to be adjusted between the maximum diameter and the minimum diameter;
The sensor 4 is arranged at the liquid phase outlet 3 and used for detecting the liquid phase separation effect, the detection result is transmitted back to the control box 8, and after the control box 8 compares the detection result with the set target value, the driving device 6 is controlled to rotate forward or backward, so that the diameter of the adjustable pump impeller 2 is increased or reduced, and the separation effect is improved until the expected target value is reached.
The driving device 6 drives the adjusting tube 9 to rotate through the driven gear 7, the eccentric disc 10 is arranged on the adjusting tube 9, and the eccentric disc 10 is driven to synchronously rotate through the positioning pin 11, the outer circle of the eccentric disc 10 is loosely matched with the inner hole of the adjustable pump impeller 2, relative sliding can be generated, the outer circle of the eccentric disc 10 is concentric with the inner hole of the adjustable pump impeller 2, and an eccentric distance is reserved between the outer circle of the eccentric disc 10 and the inner hole of the eccentric disc 10 and the rotating axis of the adjusting tube 9, and the rotating of the eccentric disc 10 can drive the adjustable pump impeller 2 to rotate due to the eccentric distance, so that the radius of the adjustable pump impeller 2 can be changed. The adjustable pump impeller 2 is provided with a U-shaped groove, a sliding block 12 is arranged in the U-shaped groove, a round hole is arranged in the middle of the sliding block 12 and is connected with a sleeve 14 through a pin shaft 13, and the rotating range of the adjustable pump impeller 2 is limited by the sliding block 12 because the sleeve 14 is a static piece, the sliding block 12 can only move back and forth in the U-shaped groove, and the radius of the corresponding adjustable pump impeller 12 changes between a maximum value and a minimum value.
The foregoing is merely illustrative of the embodiments of the present invention, and the scope of the present invention is not limited thereto, and any person skilled in the art will appreciate that modifications and substitutions are within the scope of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (3)
1. An automatic regulating apparatus of an adjustable pump impeller of a horizontal decanter centrifuge is arranged on a driving device of the adjustable pump impeller, and is characterized in that: the device comprises a driving device and a transmission gear set which is in transmission connection with the driving device, wherein the transmission gear set is in transmission connection with a transmission shaft of an adjustable pump type impeller, the driving device is connected with a control box at the far end through a communication line, a sensor is connected to the control box, the sensor is assembled at a liquid phase outlet, and the driving device can rotate clockwise or anticlockwise; the transmission gear set mainly comprises a driving gear and a driven gear which are meshed with each other, the driving gear is arranged on a power output shaft of the driving device, and the driven gear is sleeved on a transmission shaft of the adjustable pump impeller;
The driving device drives the adjusting tube to rotate through the driven gear, the eccentric disc is arranged on the adjusting tube, and the eccentric disc is driven to synchronously rotate through the positioning pin, the outer circle of the eccentric disc is loosely matched with the inner hole of the adjustable pump impeller, so that relative sliding can be generated, the outer circle of the eccentric disc is concentric with the inner hole of the adjustable pump impeller, and an eccentric distance is reserved between the outer circle of the eccentric disc and the inner hole of the eccentric disc and the rotation axis of the adjusting tube, and the rotation of the eccentric disc can drive the adjustable pump impeller to rotate due to the eccentric distance, so that the radius of the adjustable pump impeller can be changed;
The adjustable pump impeller is provided with a U-shaped groove, a sliding block is arranged in the U-shaped groove, a round hole is arranged in the middle of the sliding block and is connected with a sleeve through a pin shaft, the sleeve is a static piece, the rotation range of the adjustable pump impeller is limited by the sliding block, the sliding block can only move back and forth in the U-shaped groove, and the radius of the corresponding adjustable pump impeller is changed between a maximum value and a minimum value.
2. An automatic adjusting method of an adjustable pump impeller of a decanter centrifuge adapted to the automatic adjusting device of an adjustable pump impeller of a decanter centrifuge according to claim 1, characterized by: the sensor transmits the liquid phase separation detection result at the liquid phase outlet back to the control box, and the control box controls the driving device to rotate forward or backward after comparing the detection result with the set target value, so that the diameter of the adjustable pump impeller is increased or reduced, and the separation effect is improved until the expected target value is reached.
3. The method for automatically adjusting the adjustable pump impeller of the decanter centrifuge according to claim 2, wherein the method comprises the steps of: the driving device drives the adjustable pump impeller to rotate forwards or reversely through the transmission gear set, the diameter of the impeller can be increased or reduced by forward rotation, the diameter of the impeller can be reduced or increased by reverse rotation, and the limit switch limits the maximum diameter and the minimum diameter range of the adjustable pump impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011454166.2A CN114618694B (en) | 2020-12-10 | 2020-12-10 | Adjustable pump type impeller automatic adjusting device of horizontal decanter centrifuge and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011454166.2A CN114618694B (en) | 2020-12-10 | 2020-12-10 | Adjustable pump type impeller automatic adjusting device of horizontal decanter centrifuge and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114618694A CN114618694A (en) | 2022-06-14 |
| CN114618694B true CN114618694B (en) | 2024-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011454166.2A Active CN114618694B (en) | 2020-12-10 | 2020-12-10 | Adjustable pump type impeller automatic adjusting device of horizontal decanter centrifuge and control method |
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| CN (1) | CN114618694B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485022A (en) * | 2016-01-21 | 2016-04-13 | 池泉 | Sectional type multi-stage centrifugal pump and adjustable guide vane devices thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201404726Y (en) * | 2009-05-26 | 2010-02-17 | 上海大团压滤机有限公司 | Screw-type dewatering machine with eccentric moving mechanism |
| IT1395780B1 (en) * | 2009-09-16 | 2012-10-19 | Vhit Spa | CAPSULISM, PARTICULARLY FOR TURBOMACCHINE, TURBOMACCHINA INCLUDING SUCH CAPSULISM AND ROTARY GROUP FOR SUCH CAPSULISM. |
| CN104353612B (en) * | 2014-10-09 | 2016-08-24 | 苏州可纳粉体技术有限公司 | A kind of telescopically adjustable centrifugal classifier of grading wheel blade |
| CN106540819A (en) * | 2015-09-23 | 2017-03-29 | 济南瀚瑞糸机械设备制造有限公司 | A kind of four phase horizontal screw centrifuge of solid-liquid |
| CN205173050U (en) * | 2015-11-10 | 2016-04-20 | 上海沃克通用设备有限公司 | Antioverloading centrifugation impeller |
| JP2019012187A (en) * | 2017-06-30 | 2019-01-24 | キヤノンファインテックニスカ株式会社 | Light volume regulating device |
| CN209041135U (en) * | 2018-09-04 | 2019-06-28 | 深圳市安益水族科技有限公司 | A kind of impeller that control liquid pump rotates according to the predetermined direction |
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- 2020-12-10 CN CN202011454166.2A patent/CN114618694B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485022A (en) * | 2016-01-21 | 2016-04-13 | 池泉 | Sectional type multi-stage centrifugal pump and adjustable guide vane devices thereof |
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| CN114618694A (en) | 2022-06-14 |
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