CN115155242B - Recovery unit is used in synthetic ammonia production - Google Patents

Abstract

The invention relates to the technical field of synthetic ammonia production, in particular to a middle position pipeline, a first pipe and a second pipe, wherein one side of the middle position pipeline is provided with a driving mechanism, a discharging mechanism, a material changing mechanism and a stirring mechanism, the material changing mechanism comprises two clamping plates and a hose, the two clamping plates are respectively positioned at two sides of the hose, one side of the middle position pipeline is fixedly connected with the hose, the driving mechanism is used for controlling the two clamping plates to move close to or away from each other, one side of the hose is provided with the discharging mechanism for pushing molecular sieve particles into the hose, and the middle position pipeline is provided with an unloading port for outputting saturated molecular sieve particles.

Description

Recovery unit is used in synthetic ammonia production

Technical Field

The invention relates to the technical field of synthetic ammonia production, in particular to a recovery device for synthetic ammonia production.

Background

In the common production process of synthetic ammonia, hydrogen element in synthetic vent gas needs to be recovered, the hydrogen element often exists in a hydrogen mode, the hydrogen in the synthetic vent gas can be mixed with carbon element, the existing mode for separating hydrogen and carbon element is two, the first mode is that mixed gas is directly introduced into water, and although the hydrogen and carbon-containing gas can be separated from each other by virtue of the characteristic that the hydrogen is insoluble in water, the separation effect is limited; the second method is to make the mixed gas pass through the molecular sieve, and recover the hydrogen by utilizing the characteristic of different adsorption degrees of the molecular sieve on the hydrogen and the carbon-containing gas, but the molecular sieve is gradually saturated after long-time use, so that the subsequent separation efficiency is affected.

Disclosure of Invention

The invention aims to provide a recovery device for producing synthetic ammonia, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a recovery unit is used in synthetic ammonia production, includes median pipeline, pipe one and pipe two, pipe one is used for importing gas in to the median pipeline, and pipe two is used for deriving gas in the median pipeline, all is provided with the valve body in pipe one and the pipe two, the intussuseption of median pipeline is filled with the molecular sieve granule, and the one end of median pipeline is closed end and the other end is the through-hole, one side of median pipeline is provided with actuating mechanism, unloading mechanism, feed mechanism and rabbling mechanism, feed mechanism includes splint and hose, the quantity of splint has two, and two splint are located the both sides of hose respectively, and one side fixedly connected with hose of median pipeline, actuating mechanism is used for controlling two splint and is being close to each other or the motion of keeping away from each other, one side of hose is provided with the unloading mechanism that is used for pushing the molecular sieve granule into the hose, offer the uninstallation mouth that is used for exporting saturated molecular sieve granule on the median pipeline.

The application further comprises the following technical scheme: the driving mechanism comprises a support, a telescopic cylinder, a middle position rod, a connecting rod, racks and gears, wherein the support and the middle position pipeline are fixedly connected to the ground, the telescopic cylinder is installed on the support, the movable end of the telescopic cylinder is fixedly connected with the middle position rod, the connecting rods are connected to the two sides of the middle position rod in a rotating mode, the two connecting rods are connected to the corresponding gears in an eccentric rotating mode at one end, far away from the middle position rod, of the two connecting rods, the gears are connected with the supports in a rotating mode, one side of each gear is provided with a rack in gear engagement transmission, the racks are connected with the supports in a sliding mode, and clamping plates are fixedly connected to the racks.

The application further comprises the following technical scheme: the blanking mechanism comprises a chute, a pushing head and a shell, wherein molecular sieve particles are filled in the shell, the shell is arranged above the support at intervals, the middle position pipeline is fixedly connected with the chute through a hose, the pushing head is connected with the chute in a sliding manner, the pushing head is fixedly connected with the middle position rod, a bearing opening is formed in one side of the pushing head, and the side face of the pushing head is attached to an output port of the shell to slide.

The application further comprises the following technical scheme: the device comprises a charging mechanism and a charging mechanism, wherein the charging mechanism comprises a cover body and a baffle plate, the middle rod is elastically and slidably connected with the cover body, the baffle plate is fixedly connected with one side of a closed end of a middle pipeline, and the baffle plate is positioned on a moving path of the cover body.

The application further comprises the following technical scheme: the stirring mechanism comprises a box body, a guide pipe, a raised head and a holding bowl, wherein the box body is fixedly connected with a support, the gear is coaxially and fixedly connected with the raised head, the holding bowl is fixedly connected with the box body, a filtering port is formed in the holding bowl, the raised head rotates in the holding bowl, the input end of the guide pipe is located below the unloading port, and the output end of the guide pipe is located above the holding bowl.

The application further comprises the following technical scheme: the fan blades are coaxially and fixedly connected to the lower parts of the raised heads, and rotate in the box body.

The application further comprises the following technical scheme: the section of the containing bowl is bowl-shaped, and the section of the raised head is spherical.

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects: according to the invention, the driving mechanism is used as a central driving system to drive the blanking mechanism, the material changing mechanism and the stirring mechanism to operate, the blanking mechanism is used for conveying new molecular sieve particles which do not adsorb gas into the hose, the clamping plates positioned at the two sides of the hose are controlled by the driving mechanism to squeeze the molecular sieve particles to a certain extent, the originally loose molecular sieve particles are squeezed to be more compact, the compact molecular sieve particles can be regarded as a molecular sieve cake, the new molecular sieve particles are continuously pushed into the hose by the follow-up blanking mechanism, the molecular sieve cake in the hose is gradually moved into the middle-position pipeline, the new molecular sieve cake is gradually moved into the unloading port from the closed end of the middle-position pipeline in the middle-position pipeline, the mixed gas continuously entering from the pipe is contacted with the continuously updated molecular sieve cake in the process, each molecular sieve cake can adsorb the carbon-containing gas in the mixed gas by using higher adsorption capacity, then the more saturated molecular sieve cake can be continuously pushed and unloaded by the blanking mechanism, the blanking mechanism is continuously, the molecular sieve cake is gradually moved into the middle-position pipeline, the middle-position pipeline is continuously, the molecular sieve is automatically unloaded, the quality of the molecular sieve is also required to be automatically replaced, the molecular sieve is automatically and the quality is not to be changed, and the quality of the molecular sieve is also required to be automatically replaced, and the quality is automatically, and the quality is improved.

Drawings

FIG. 1 is a three-dimensional schematic view of a recovery device for ammonia synthesis production according to the present invention at a first view angle;

FIG. 2 is a schematic three-dimensional view of a recovery device for ammonia synthesis in a second view angle;

FIG. 3 is a three-dimensional schematic view of a recovery device for ammonia synthesis in a third perspective;

FIG. 4 is a three-dimensional view of a pusher of a recovery device for ammonia synthesis production provided by the invention;

fig. 5 is a three-dimensional view of a median pipeline of the recovery device for producing synthetic ammonia.

Fig. 6 is a sectional view of the inside of the case.

Reference numerals in the schematic drawings illustrate:

1. a bracket; 2. a telescopic cylinder; 3. a median lever; 4. a median conduit; 5. a cover body; 6. a hose; 7. a chute; 8. pushing heads; 9. a housing; 10. a baffle; 11. a connecting rod; 12. a rack; 13. a gear; 14. a clamping plate; 15. a first tube; 16. a second pipe; 17. a fan blade; 18. a case; 19. a guide tube; 20. a nose; 21. and the bowl is connected with the container.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art without making any inventive effort, based on the embodiments of the present invention are within the scope of the present invention, and the present invention is further described below with reference to the embodiments.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, in one embodiment of the present application, a recovery device for producing synthetic ammonia includes a middle position pipeline 4, a first pipe 15 and a second pipe 16, the first pipe 15 is used for inputting gas into the middle position pipeline 4, the second pipe 16 is used for guiding gas out of the middle position pipeline 4, valve bodies are disposed in the first pipe 15 and the second pipe 16, molecular sieve particles are filled in the middle position pipeline 4, one end of the middle position pipeline 4 is a closed end and the other end is a through hole, a driving mechanism, a discharging mechanism, a material changing mechanism and a stirring mechanism are disposed on one side of the middle position pipeline 4, the material changing mechanism includes two clamping plates 14 and a hose 6, the two clamping plates 14 are respectively disposed on two sides of the hose 6, one side of the middle position pipeline 4 is fixedly connected with the hose 6, the driving mechanism is used for controlling the two clamping plates 14 to move close to each other or away from each other, one side of the hose 6 is provided with a discharging mechanism for pushing the molecular sieve particles into the hose 6, and the middle position pipeline 4 is provided with a hose port for discharging the saturated particles.

As shown in fig. 1, in one case of this embodiment, the driving mechanism includes a support 1, a telescopic cylinder 2, a middle rod 3, a connecting rod 11, a rack 12 and a gear 13, the support 1 and the middle pipe 4 are all fixedly connected to the ground, the telescopic cylinder 2 is installed on the support 1, the movable end of the telescopic cylinder 2 is fixedly connected to the middle rod 3, two sides of the middle rod 3 are both rotationally connected with the connecting rod 11, one end of the two connecting rods 11 far away from the middle rod 3 is both eccentrically rotationally connected with the corresponding gear 13, the gear 13 is rotationally connected with the support 1, one side of the gear 13 is provided with a rack 12 meshed with the gear 13, the rack 12 is slidingly connected with the support 1, and two clamping plates 14 are both fixedly connected to the racks 12.

In practical application, the driving mechanism is used as a central driving system to drive the blanking mechanism, the material changing mechanism and the stirring mechanism to operate, the blanking mechanism is used for conveying new molecular sieve particles which do not adsorb gas into the hose 6, the clamping plates 14 positioned at two sides of the hose 6 are controlled by the driving mechanism to squeeze the molecular sieve particles to a certain extent, the originally loose molecular sieve particles are squeezed to be more compact, the compact molecular sieve particles can be regarded as a molecular sieve cake, the follow-up blanking mechanism continuously pushes the new molecular sieve particles into the hose 6, the molecular sieve cake in the hose 6 is gradually moved into the middle-position pipeline 4, the new molecular sieve cake can gradually move into the unloading port from the closed end of the middle-position pipeline 4 in the middle-position pipeline 4, in the process, the mixed gas which is continuously fed from the hose 15 is contacted with the continuously updated molecular sieve cake, the carbon-containing gas in the mixed gas can be desorbed by using higher adsorption capacity, and then the saturated molecular sieve cake can be automatically moved under the unloading pipeline 4, the follow-up blanking mechanism can also be stopped under the condition of continuously pushing the molecular sieve cake, the automatic production line is stopped, the quality of the molecular sieve is also required to be automatically changed, and the quality of the molecular sieve is also improved, and the automatic production and the quality of the molecular sieve is required to be automatically changed.

The telescopic cylinder 2 drives the middle rod 3 to move left and right along the horizontal direction, and the connecting rod 11 pulls the two gears 13 back and forth to rotate in opposite directions, the gears 13 drive the racks 12 to slide back and forth while rotating, and further drive the corresponding clamping plates 14 to move close to or away from each other, so that the aim of clamping molecular sieve particles in the hose 6 or the aim of loosening the hose 6 is fulfilled; specifically, when the telescopic cylinder 2 is extended, the two clamping plates 14 are away from each other, and do not perform the movement of clamping the molecular sieve particles, and when the telescopic cylinder 2 is retracted, the two clamping plates 14 are close to each other, and do the movement of clamping the molecular sieve particles.

Referring to fig. 1, 3 and 4, as a preferred embodiment of the present application, the blanking mechanism includes a chute 7, a pushing head 8 and a housing 9, molecular sieve particles are filled in the housing 9, the housing 9 is disposed above the support 1 at intervals, the middle position pipeline 4 is fixedly connected with the chute 7 through a hose 6, the pushing head 8 is slidably connected with the chute 7, the pushing head 8 is fixedly connected with the middle position rod 3, a bearing port is formed on one side of the pushing head 8, and a side surface of the pushing head 8 is attached to an output port of the housing 9 to slide.

In one case of this embodiment, as shown in fig. 1, the refueling mechanism includes a housing 5 and a baffle 10, where the middle rod 3 is elastically slidably connected to the housing 5, the baffle 10 is fixedly connected to a side of a closed end of the middle pipe 4, and the baffle 10 is located on a moving path of the housing 5.

In practical application, when the telescopic cylinder 2 is retracted, the telescopic cylinder 2 drives the middle rod 3 to move leftwards, the middle rod 3 drives the push head 8 to slide on the chute 7, when the bearing port on the push head 8 moves to the lower part of the output end of the shell 9, molecular sieve particles in the shell 9 can fall into the bearing port, then when the telescopic cylinder 2 is extended, the telescopic cylinder 2 drives the middle rod 3 to move rightwards, the middle rod 3 drives the push head 8 to push the molecular sieve particles falling into the bearing port into the hose 6 from the chute 7, so that clamping plates 14 on two sides of the hose 6 clamp the molecular sieve particles in the hose 6, the bottom surface of the bearing port of the push head 8 is an inclined downward slope, so that the molecular sieve particles can conveniently roll into the hose 6, when the molecular sieve cake moves to the lower part of the first tube 15, the molecular sieve cake is subjected to impact force of mixed gas from the first tube 15, the molecular sieve particles on the molecular sieve cake can peel off to different degrees, and the carbon-containing particles in the mixed gas can be adsorbed. In the process of purifying hydrogen, certain pressure is sometimes led into the middle-position pipeline 4, according to the principle that different gas molecules in the mixed gas are adsorbed by molecular sieve particles under different pressures, when the pressure is changed, more kinds of impurity gases can be adsorbed by the molecular sieve particles, when the gas is led into the middle-position pipeline 4, one end of the middle-position pipeline 4 is blocked by the push head 8, the first pipe 15 and the second pipe 16 are respectively provided with a valve, so that when the middle-position pipeline 4 is pressurized, only one unloading port can be freely ventilated, and at the moment, the cover body 5 is driven to move to the right when the telescopic cylinder 2 stretches, and when the cover body 5 blocks the unloading port, the whole middle-position pipeline 4 side can be under specific pressure in a certain time period, thereby improving the purity of the hydrogen obtained by the device.

Referring to fig. 1 and 6, as a preferred embodiment of the present application, the stirring mechanism includes a case 18, a guide tube 19, a protruding head 20 and a receiving bowl 21, the case 18 is fixedly connected with the bracket 1, the gear 13 is fixedly connected with the protruding head 20 coaxially, the receiving bowl 21 is fixedly connected with the case 18, a filter port is formed on the receiving bowl 21, the protruding head 20 performs a rotary motion in the receiving bowl 21, an input end of the guide tube 19 is located below the unloading port, and an output end of the guide tube 19 is located above the receiving bowl 21.

In one case of this embodiment, as shown in fig. 6, a fan blade 17 is fixedly connected coaxially under the raised head 20, and the fan blade 17 rotates in the case 18.

The cross section of the receiving bowl 21 is bowl-shaped, and the cross section of the protruding head 20 is spherical.

In this embodiment, when the cover 5 moves leftwards, the unloading port is exposed, at this time, the molecular sieve cake falls into the guide tube 19 from the unloading port, through the guiding action of the guide tube 19, the molecular sieve cake and scattered molecular sieve particles fall into the holding bowl 21, because the continuous rotation of the gear 13 drives the holding bowl 21 to continuously rotate, the protruding head 20 can break up the molecular sieve cake falling into molecular sieve particles in the holding bowl 21, and let the molecular sieve particles fall into the box 18 from the filter port, after the molecular sieve particles fall into the solution in the box 18, the solution in the box 18 can be alkaline salt solution, the principle that the reaction between the alkaline salt solution and the carbon-containing gas generates precipitation is utilized, the molecular sieve particles can be used as a reaction matrix, the produced precipitation is wrapped on the molecular sieve particles, and the plurality of molecular sieve particles are held in groups under the mutual connection of the precipitation, so that the suspended molecular volume of the box 18 can be reduced, and only the subsequent step of recovering the carbonate particles of holding groups is omitted.

Rotation of the blades 17 increases the rate at which the adsorbed gas within the molecular sieve particles reacts with the solution within the housing 18.

The spherical and bowl-shaped extrusion can efficiently break up the molecular sieve cake, and meanwhile, broken molecular sieve particles cannot be retained in the containing bowl 21.

In the device, when the telescopic cylinder 2 is used as a driving piece, the middle rod 3 moves leftwards when the telescopic cylinder 2 stretches, the two clamping plates 14 are driven to be away from each other through the meshing transmission action between the rack 12 and the gear 13, meanwhile, the middle rod 3 drives the push head 8 to push molecular sieve particles falling from the shell 9 into the hose 6, after part of molecular sieve cakes are properly pushed into the guide tube 19, the cover body 5 shields an unloading port, the middle pipeline 4 can be properly pressurized, the pressure is within the deformation pressure range of the hose 6, the telescopic cylinder 2 is contracted, the two clamping plates 14 are driven to move close to each other under the meshing transmission action of the rack 12 and the gear 13, so that molecular sieve particles in the hose 6 are extruded, and in the process, the gear 13 can drive the raised head 20 to rotate the fan blades 17, so that carbon molecules are conveniently fixed; in the above process, not only the purity of the recovered hydrogen gas can be improved, but also a large volume of carbon element can be obtained.

The left and right directions in the above embodiments are all based on fig. 1, and a person skilled in the art can manufacture a reasonable shape of the bracket 1 according to the above.

The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a recovery unit is used in synthetic ammonia production, includes median pipeline (4), pipe one (15) and pipe two (16), pipe one (15) are used for importing gas in median pipeline (4), and pipe two (16) are used for deriving gas in follow median pipeline (4), all are provided with the valve body in pipe one (15) and pipe two (16), median pipeline (4) intussuseption is filled with molecular sieve granule, a serial communication port, the one end of median pipeline (4) is closed end and the other end is the through-hole, one side of median pipeline (4) is provided with actuating mechanism, unloading mechanism, feed mechanism and rabbling mechanism, feed mechanism includes splint (14) and hose (6), the quantity of splint (14) is two, and two splint (14) are located the both sides of hose (6) respectively, and one side of median pipeline (4) fixedly connected with hose (6);

the driving mechanism is used for controlling the two clamping plates (14) to move close to or away from each other; the driving mechanism comprises a support (1), a middle rod (3), connecting rods (11), racks (12) and gears (13), wherein the support (1) and a middle pipeline (4) are fixedly connected to the ground, the middle rod (3) is in sliding connection with the support (1), the connecting rods (11) are rotatably connected to two sides of the middle rod (3), one end, far away from the middle rod (3), of each connecting rod (11) is eccentrically and rotatably connected with the corresponding gear (13), the gears (13) are rotatably connected with the support (1), one side of each gear (13) is provided with a rack (12) which is meshed with the corresponding gear (13), and the racks (12) are in sliding connection with the support (1), and clamping plates (14) are fixedly connected to the two racks (12); the motion track of the middle lever (3) and the motion track of the clamping plate (14) are mutually perpendicular;

a blanking mechanism for pushing molecular sieve particles into the hose (6) is arranged on one side of the hose (6), and an unloading port for outputting saturated molecular sieve particles is formed in the middle position pipeline (4); the blanking mechanism comprises a sliding groove (7), a pushing head (8) and a shell (9), wherein molecular sieve particles are filled in the shell (9), the shell (9) is arranged above the support (1) at intervals, the middle position pipeline (4) is fixedly connected with the sliding groove (7) through a hose (6), the pushing head (8) is connected with the sliding groove (7) in a sliding manner, the pushing head (8) is fixedly connected with the middle position rod (3), a bearing opening is formed in one side of the pushing head (8), and the side face of the pushing head (8) is attached to an output port of the shell (9) to slide.

2. The recovery device for synthetic ammonia production according to claim 1, wherein the driving mechanism further comprises a telescopic cylinder (2), the telescopic cylinder (2) is mounted on the support (1), and the movable end of the telescopic cylinder (2) is fixedly connected with the middle rod (3).

3. The recovery device for synthetic ammonia production according to claim 1 or 2, wherein the refueling mechanism comprises a housing (5) and a baffle plate (10), the middle rod (3) is elastically and slidably connected with the housing (5), the baffle plate (10) is fixedly connected with one side of the closed end of the middle pipeline (4), and the baffle plate (10) is positioned on the moving path of the housing (5).

4. The recycling device for synthetic ammonia production according to claim 3, wherein the stirring mechanism comprises a box body (18), a guide tube (19), a raised head (20) and a containing bowl (21), the box body (18) and the support (1) are fixedly connected, the raised head (20) is fixedly connected to the gear (13) coaxially, the containing bowl (21) is fixedly connected to the box body (18), a filter opening is formed in the containing bowl (21), the raised head (20) rotates in the containing bowl (21), the input end of the guide tube (19) is located below the unloading opening, and the output end of the guide tube (19) is located above the containing bowl (21).

5. The recovery device for synthetic ammonia production according to claim 4, wherein a fan blade (17) is coaxially and fixedly connected below the raised head (20), and the fan blade (17) rotates in the box body (18).

6. The recovery device for synthetic ammonia production according to claim 5, wherein the cross-section of the receiving bowl (21) is bowl-shaped, and the cross-section of the protruding head (20) is spherical.

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