Anti-caking solid chemical storage tank

Abstract

The present invention discloses an anti-caking solid chemical storage tank, which relates to the technical field of solid chemical storage; specifically, it comprises a tank body, a tank door is connected to the front side of the tank body by a hinge, and an observation window is provided on the front side of the tank door, a motor is fixed to the top outer wall of the tank body by a support plate, a storage mechanism is movably connected to the back of the tank body, and a top plate is clamped on the top outer wall of the storage mechanism, and an organic box is arranged in the middle of the bottom of the top plate, an intermittent rotating mechanism is arranged inside the machine box, and a dehumidification component is arranged at the rotating end of the intermittent rotating mechanism, and the dehumidification component comprises a rotating drum, an air nozzle, an air inlet pipe, a bottom plate, an air pump and an air guide channel. The present invention solves the problem that the solid chemical reagents in the tank body are stacked together, the dehumidification time is long and the effect is poor, and avoids the situation that the solid chemical reagents are stored for a long time and agglomerate, and plays the role of anti-caking and safe storage of solid chemical reagents.

Description

Technical Field

[0001] The invention relates to the technical field of solid chemical agent storage, and in particular to an anti-caking solid chemical agent storage tank. Background Art

[0002] Anti-caking solid chemical storage tanks are equipment used to store solid chemicals, mainly used to store powdered, granular or blocky chemicals, such as fertilizers, chemical fertilizers, salts, ores, cement, etc. This type of storage tank usually has anti-caking properties, which can effectively prevent the chemical from agglomerating or sticking during storage and transportation, ensuring the quality and stability of the agent. Anti-caking solid chemical storage tanks usually adopt special designs and materials, such as tanks made of stainless steel or fiberglass, which have good corrosion resistance and high temperature resistance. In addition, the storage tank is usually equipped with a special stirring device or vibrator inside, which can effectively prevent the chemical from agglomerating or sticking. At the same time, the storage tank is also equipped with appropriate ventilation and exhaust systems to ensure the quality and safety of the agent.

[0003] In general, anti-caking solid chemical storage tanks play an important role in the storage and transportation of chemical substances. They can effectively prevent the agglomeration and adhesion of chemical substances and ensure the quality and stability of the substances.

[0004] After searching, the invention with Chinese invention application number CN2022203803897 discloses an anti-blocking solid chemical storage tank, including a tank body, the top of the tank body is threadedly connected to a cover body, both sides of the outer wall of the tank body are fixedly connected to a pneumatic transmission device, the bottom of the tank body is fixedly connected to a compression cylinder, the bottom of the compression cylinder is movably connected to a connecting column, the bottom of the connecting column is fixedly connected to a base, two top blocks are arranged inside the tank body, and the outer wall of the compression cylinder is fixedly connected and connected to two hoses. The anti-caking solid chemical storage tank in the above invention has the following shortcomings:

[0005] Although the above-mentioned device absorbs moisture through the provided hygroscopic block to keep the chemical reagents inside the tank dry, and the sealing ring seals the tank body and the cover body to prevent the chemical reagents inside the tank body from entering moisture and agglomerating, the moisture block is located at the top of the tank body, and the solid chemical reagents in the tank body are stacked together, and the dehumidification time between them is long and the effect is poor. Therefore, there is an urgent need for an anti-caking solid chemical storage tank. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an anti-caking solid chemical storage tank.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An anti-caking solid chemical storage tank comprises a tank body, a tank door is connected to the front side of the tank body by a hinge, and an observation window is opened on the front side of the tank door, a motor is fixed to the top outer wall of the tank body by a support plate, a storage mechanism is movably connected to the back of the tank body, and a top plate is clamped on the top outer wall of the storage mechanism, and an organic box is arranged in the middle of the bottom of the top plate, an intermittent rotating mechanism is arranged inside the machine box, and a dehumidification component is arranged at the rotating end of the intermittent rotating mechanism.

[0009] Preferably: the dehumidification component includes a rotary drum, an air nozzle, an air inlet pipe, a base plate, an air pump and an air guide channel, and the front outer wall of the machine box is provided with equidistantly distributed installation grooves, the rotary drum is rotatably connected in the installation groove, the ventilation end of the air guide channel is rotatably connected to the end of the rotary drum through a bearing, and the base plate is clamped to the bottom of the storage mechanism.

[0010] Furthermore: the air pump is arranged on the top outer wall of the base plate, the air inlet pipe is arranged at the air inlet end of the air pump, and the end of the air inlet pipe passes through the back side of the tank body, the air outlet end of the air pump is connected to the bottom side of the air guide channel through a conduit, and the air nozzle is arranged on the circumference of the rotating drum.

[0011] On the basis of the above scheme: the intermittent rotating mechanism includes a rotating rod, gear one, gear two, a guide shaft, a turntable, a guide rod, a guide column, a triangular plate and a guide groove, and the rotating rod is rotatably connected to the top of the top plate through a bearing, the rotating rod is inserted into the interior of the machine box, gear one is arranged on the circumference of the rotating rod, and gear two is arranged on the circumference of the rotating rod.

[0012] A better solution in the above-mentioned solution is: gear one and gear two are meshed with each other, the guide shaft is arranged on the inner circumference of gear two, and the guide shaft is connected to the end of the rotating drum through a thread, the triangular plate is arranged on the top circumference of the rotating rod, and the guide groove is opened in the triangle of the triangular plate.

[0013] As a further solution of the present invention: the turntable is rotatably connected to the top of the top plate through a connecting shaft, the output end of the motor is connected to the top of the connecting shaft through a thread, and a notch is opened on one side of the circumference of the turntable, the guide rod is arranged on the top circumference of the connecting shaft, and the guide column is fixedly connected to the bottom outer wall of the guide rod on one side close to the notch, the circumferential surface of the turntable is adapted to the arc surface of the triangular disk, and the guide column is adapted to the guide groove.

[0014] At the same time, the storage mechanism includes an L-shaped bracket, a placement plate, a center plate, a partition, a movable plate, a groove, a card slot, a card protrusion, a fitting groove, a slide groove, a slide groove and a guide bar, and the partition is fixedly connected to the back inner wall of the tank body at equal distances by bolts.

[0015] As a preferred embodiment of the present invention: the groove is opened on the middle side of the partition, the center plate is clamped in the groove through the fitting groove, and the fitting groove and the groove fit each other, the clamping grooves are opened on the outer walls on both sides of the center plate at equal distances, and the end of the L-shaped bracket is clamped in the clamping groove through a clamping protrusion.

[0016] At the same time, the latching protrusions and the latching slots are engaged with each other, and the centers of the back sides of the top plate and the bottom plate are engaged with the latching slots at the top and bottom of the center plate through the latching protrusions. The slide groove is opened on one side of the L-shaped bracket, and the placement plate is slidably inserted into the slide groove, and the guide bar is arranged on one side of the placement plate.

[0017] As a more optimal solution of the present invention: the guide bar and the slide groove form a sliding fit, the placement plate is a mesh structure tray, and the movable plate is slidably connected to the L-shaped bracket near the top of the placement plate.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention, when working, starts the motor to drive the turntable of the connecting shaft to rotate, the rotating turntable drives the guide rod at the top to rotate, and the guide post at the end of the guide rod makes a circular motion. When the guide post rotates to one side of the triangular disk, the guide post slides through the guide groove to drive the triangular disk to rotate a certain angle, and at the same time, the circumferential surface of the turntable and the arc surface of the triangular disk fit each other, and the rotating triangular disk drives the inner circumference of the rotating rod to rotate a certain angle, and the rotating rotating rod drives the gear to rotate, and makes the guide shaft in its inner ring rotate, thereby driving the rotating drum at the end of the guide shaft to complete intermittent rotation. Before this, the air pump is started, and the air pump draws air into the air guide channel through the air inlet pipe. The air guide channel injects air into each rotating drum at an equal distance and is led out by the air nozzle on the circumference of the rotating drum, thereby effectively dehumidifying and drying the solid chemical agents stored in the storage mechanism, effectively solving the problem that the solid chemical agents in the tank body are stacked together, the dehumidification time is long and the effect is poor, and avoiding the solid chemical agents from caking due to long-term storage.

[0020] 2. During installation, the partition is first fixed to the inner wall of the back side of the tank body, and the center plate is fitted to the center of the partition by means of the grooves and the fitting grooves being mutually engaged, and then the top plate and the bottom plate are inserted into the grooves on both sides of the top and bottom of the center plate by means of the protrusions, and then the L-shaped brackets are installed in the middle of the center plate from top to bottom by means of the protrusions being inserted into the grooves, and the placement plate is installed on the inner side of the L-shaped bracket by means of the guide bars being slid into the slide grooves, thereby, the storage mechanism for solid chemicals is not only convenient for loading and unloading, but also conducive to the staff to regularly clean and replace the inside of the tank body, thereby ensuring the cleanliness and safety of the internal environment of the tank body, and playing a role in the safe storage of solid chemicals. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the main structure of an anti-caking solid chemical storage tank proposed by the present invention;

[0022] Figure 2 A schematic diagram of the internal structure of an anti-caking solid chemical storage tank proposed by the present invention;

[0023] Figure 3 A schematic diagram of the structure of a storage mechanism in an anti-caking solid chemical storage tank proposed by the present invention;

[0024] Figure 4 A schematic diagram of the explosion structure of a storage mechanism in an anti-caking solid chemical storage tank proposed by the present invention;

[0025] Figure 5 A schematic diagram of the structure of a tray placed in an anti-caking solid chemical storage tank proposed by the present invention;

[0026] Figure 6 This is a schematic diagram of the main structure of an intermittent rotating mechanism in an anti-caking solid chemical storage tank proposed by the present invention;

[0027] Figure 7 The present invention is a schematic top view of the intermittent rotating mechanism in an anti-caking solid chemical storage tank.

[0028] In the figure: 1. tank body; 2. tank door; 3. observation window; 4. motor; 5. top plate; 6. machine box; 7. rotating drum; 8. air nozzle; 9. air inlet pipe; 10. bottom plate; 11. air pump; 12. air guide channel; 13. storage mechanism; 14. intermittent rotating mechanism; 1301. L-shaped bracket; 1302. placement plate; 1303. center plate; 1304. partition plate; 1305. moving plate; 1306. groove; 1307. card slot; 1308. card convex; 1309. fitting groove; 1310. slide groove; 1311. guide strip; 1401. rotating rod; 1402. gear one; 1403. gear two; 1404. guide shaft; 1405. rotating disk; 1406. guide rod; 1407. guide column; 1408. triangular disk; 1409. guide groove. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] An anti-caking solid chemical storage tank, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, it includes a tank body 1, a tank door 2 is connected to the front side of the tank body 1 by a hinge, and an observation window 3 is opened on the front side of the tank door 2, a motor 4 is fixed to the top outer wall of the tank body 1 by a support plate, a storage mechanism 13 is movably connected to the back of the tank body 1, and a top plate 5 is clamped on the top outer wall of the storage mechanism 13, and an organic box 6 is fixed to the middle of the bottom of the top plate 5 by bolts, an intermittent rotating mechanism 14 is arranged inside the machine box 6, and a dehumidification component is arranged at the rotating end of the intermittent rotating mechanism 14.

[0034] In order to solve the problem that the solid chemical reagents in the tank body 1 are stacked together, the dehumidification time is long and the effect is poor; Figure 2 , Figure 6 and Figure 7 As shown, the dehumidification assembly includes a rotary drum 7, an air nozzle 8, an air inlet pipe 9, a bottom plate 10, an air pump 11 and an air guide channel 12, and the front outer wall of the machine box 6 is provided with mounting grooves distributed at equal distances, the rotary drum 7 is rotatably connected in the mounting groove, the ventilation end of the air guide channel 12 is rotatably connected to the end of the rotary drum 7 through a bearing, the bottom plate 10 is clamped to the bottom of the storage mechanism 13, the air pump 11 is fixed to the top outer wall of the bottom plate 10 by bolts, the air inlet pipe 9 is connected to the air inlet end of the air pump 11 by threads, and the end of the air inlet pipe 9 passes through the back of the tank body 1, the air outlet end of the air pump 11 is connected to the bottom side of the air guide channel 12 through a conduit, and the air nozzle 8 is connected to the circumference of the rotary drum 7 by threads;

[0035] The intermittent rotating mechanism 14 includes a rotating rod 1401, a gear 1402, a gear 2 1403, a guide shaft 1404, a rotating disk 1405, a guide rod 1406, a guide column 1407, a triangular plate 1408 and a guide groove 1409, and the rotating rod 1401 is rotatably connected to the top of the top plate 5 through a bearing, the rotating rod 1401 is inserted into the inside of the machine box 6, the gear 1402 is connected to the circumference of the rotating rod 1401 through a thread, and the gear 2 1403 is connected to the circumference of the rotating rod 1401 through a thread, the gear 1402 and the gear 2 1403 are meshed with each other, the guide shaft 1404 is connected to the inner circumference of the gear 2 1403 through a thread, and the guide shaft 14 04 is connected to the end of the rotating drum 7 by a thread, the triangular disk 1408 is connected to the top circumference of the rotating rod 1401 by a thread, the guide groove 1409 is opened in the triangle of the triangular disk 1408, the rotating disk 1405 is rotatably connected to the top of the top plate 5 by a connecting shaft, the output end of the motor 4 is connected to the top of the connecting shaft by a thread, and a notch is opened on one side of the circumference of the rotating disk 1405, the guide rod 1406 is connected to the top circumference of the connecting shaft by a thread, and the guide column 1407 is fixedly connected to the bottom outer wall of the guide rod 1406 on one side close to the notch, the circumferential surface of the rotating disk 1405 is adapted to the arc surface of the triangular disk 1408, and the guide column 1407 is adapted to the guide groove 1409;

[0036] During operation, the starting motor 4 drives the rotating disk 1405 connected to the circumference of the shaft to rotate, and the rotating rotating disk 1405 drives the guide rod 1406 on its top to rotate, and the guide column 1407 located at the end of the guide rod 1406 makes a circular motion. When the guide column 1407 rotates to one side of the triangular disk 1408, the guide column 1407 slides through the guide groove 1409 and drives the triangular disk 1408 to rotate a certain angle. At the same time, the circumferential surface of the rotating disk 1405 and the arc surface of the triangular disk 1408 fit each other, and the rotating triangular disk 1408 drives the rotating rod 1401 on the inner circumference to rotate a certain angle, and the rotating rotating rod 1401 drives the gear 1402 to rotate. , and causes the guide shaft 1404 in its inner ring to rotate, thereby driving the rotating drum 7 at the end of the guide shaft 1404 to complete intermittent rotation. Prior to this, the air pump 11 is started, and the air pump 11 draws air into the air guide channel 12 through the air inlet pipe 9. The air guide channel 12 injects air into each rotating drum 7 at equal distances, and the air is discharged by the air nozzle 8 on the circumference of the rotating drum 7, thereby effectively dehumidifying and drying the solid chemical agents stored in the storage mechanism 13, effectively solving the problem that the solid chemical agents in the tank body 1 are stacked together, the dehumidification time is long, and the effect is poor, and avoiding the solid chemical agents from agglomerating due to long-term storage.

[0037] In order to facilitate the loading and unloading, cleaning and replacement of the storage mechanism 13; Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the storage mechanism 13 includes an L-shaped bracket 1301, a placement plate 1302, a center plate 1303, a partition 1304, a movable plate 1305, a groove 1306, a slot 1307, a protrusion 1308, a fitting groove 1309, a slide 1310, a slide 1310 and a guide bar 1311, and the partition 1304 is fixedly connected to the back inner wall of the tank body 1 at an equal distance by bolts, the groove 1306 is opened on the middle side of the partition 1304, the center plate 1303 is clamped in the groove 1306 through the fitting groove 1309, and the fitting groove 1309 and the groove 1306 are fitted with each other, the slots 1307 are opened on the outer walls of both sides of the center plate 1303 at an equal distance, and the end of the L-shaped bracket 1301 is clamped in the slot 1309 through the protrusion 1308 7, and the protrusion 1308 and the groove 1307 are mutually engaged and adapted, the centers of the back sides of the top plate 5 and the bottom plate 10 are engaged with the grooves 1307 at the top and bottom of the center plate 1303 through the protrusion 1308, the slide groove 1310 is opened on one side of the L-shaped bracket 1301, and the placement plate 1302 is slidably inserted in the slide groove 1310, the guide bar 1311 is arranged on one side of the placement plate 1302, and the guide bar 1311 forms a sliding match with the slide groove 1310, the placement plate 1302 is a mesh structure tray, and the movable plate 1305 is slidably connected to the L-shaped bracket 1301 near the top of the placement plate 1302; through the arrangement of the movable plate 1305, the movable plate 1305 is connected to the two L-shaped brackets 1301 to ensure the stability of the two L-shaped brackets 1301.

[0038] During installation, first fix the partition 1304 on the back inner wall of the tank body 1, and fit the center plate 1303 to the center of the partition 1304 by means of the mutual engagement of the groove 1306 and the fitting groove 1309. Then, the top plate 5 and the bottom plate 10 are inserted into the grooves 1307 on the top and bottom sides of the center plate 1303 through the protrusions 1308. Subsequently, the L-shaped bracket 1301 is installed in the middle of the center plate 1303 from top to bottom by means of the protrusions 1308 being inserted into the grooves 1307, and the placement plate 1302 is installed on the inner side of the L-shaped bracket 1301 by means of the guide bar 1311 sliding into the slide groove 1310. As a result, the solid chemical storage mechanism 13 is not only convenient for loading and unloading, but also conducive to the staff to regularly clean and replace the inside of the tank body 1, ensuring the cleanliness and safety of the internal environment of the tank body 1, thereby playing a role in the safe storage of solid chemicals.

[0039] When the present embodiment is used, the partition 1304 is first fixed to the inner wall of the back side of the tank body 1, and the center plate 1303 is attached to the center of the partition 1304 by means of the mutual engagement of the groove 1306 and the fitting groove 1309. Then, the top plate 5 and the bottom plate 10 are inserted into the slots 1307 on both sides of the top and bottom of the center plate 1303 through the protrusions 1308. Subsequently, the L-shaped bracket 1301 is installed in the middle of the center plate 1303 from top to bottom by means of the protrusions 1308 being inserted into the slots 1307, and the placement plate 1302 is installed on the inner side of the L-shaped bracket 1301 by means of the guide strips 1311 sliding into the slide grooves 1310.

[0040] At the same time, the solid chemical agent is spread on the top of the placement plate 1302, the tank door 2 is closed, and the motor 4 is started to drive the turntable 1405 connected to the circumference of the shaft to rotate. The rotating turntable 1405 drives the guide rod 1406 on its top to rotate, and the guide column 1407 located at the end of the guide rod 1406 makes a circular motion. When the guide column 1407 rotates to one side of the triangular plate 1408, the guide column 1407 slides through the guide groove 1409 and drives the triangular plate 1408 to rotate a certain angle. At the same time, the circumferential surface of the turntable 1405 and the arc surface of the triangular plate 1408 fit each other, and the rotating triangular plate 1408 drives the inner circumference of the rotating rod 1401 to rotate a certain angle. The rotating rotating rod 1401 drives the gear 1 1402 to rotate, and makes the guide shaft 1404 in its inner ring rotate, thereby driving the rotating drum 7 at the end of the guide shaft 1404 to complete the intermittent rotation action;

[0041] Prior to this, the air pump 11 is started, and the air pump 11 draws air into the air guide channel 12 through the air inlet pipe 9. The air guide channel 12 injects the air into each rotating drum 7 at equal distances, and the air is discharged from the air nozzle 8 on the circumference of the rotating drum 7, thereby effectively dehumidifying and drying the solid chemical agents stored in the storage mechanism 13.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-caking solid chemical storage tank, comprising a tank body (1), characterized in that: The front side of the tank body (1) is connected to a tank door (2) via a hinge, and an observation window (3) is provided on the front side of the tank door (2); a motor (4) is fixed to the top outer wall of the tank body (1) via a support plate; a storage mechanism (13) is movably connected to the inside of the back side of the tank body (1); a top plate (5) is clamped to the top outer wall of the storage mechanism (13); an organic box (6) is provided in the middle of the bottom of the top plate (5); an intermittent rotating mechanism (14) is provided inside the machine box (6); and a dehumidification component is provided at the rotating end of the intermittent rotating mechanism (14); The dehumidification assembly comprises a rotary drum (7), an air nozzle (8), an air inlet pipe (9), a bottom plate (10), an air pump (11) and an air guide channel (12), and the front outer wall of the machine box (6) is provided with mounting grooves distributed at equal distances, the rotary drum (7) is rotatably connected in the mounting groove, the ventilation end of the air guide channel (12) is rotatably connected to the end of the rotary drum (7) through a bearing, the bottom plate (10) is clamped to the bottom of the storage mechanism (13), the air pump (11) is arranged on the top outer wall of the bottom plate (10), the air inlet pipe (9) is arranged at the air inlet end of the air pump (11), and the end of the air inlet pipe (9) passes through the back of the tank body (1), the air outlet end of the air pump (11) is connected to one side of the bottom of the air guide channel (12) through a conduit, and the air nozzle (8) is arranged on the circumference of the rotary drum (7); The intermittent rotating mechanism (14) comprises a rotating rod (1401), a gear 1 (1402), a gear 2 (1403), a guide shaft (1404), a rotating disk (1405), a guide rod (1406), a guide column (1407), a triangular disk (1408) and a guide groove (1409), wherein the rotating rod (1401) is rotatably connected to the top of the top plate (5) via a bearing, the rotating rod (1401) is inserted through the inside of the machine box (6), the gear 1 (1402) is arranged on the circumference of the rotating rod (1401), the gear 1 (1402) and the gear 2 (1403) are meshed with each other, the guide shaft (1404) is arranged on the inner circumference of the gear 2 (1403), and the guide shaft (1404) is screwed to the rotating rod (1401) via a screw thread. The ends of the cylinder (7) are connected, the triangular disk (1408) is arranged on the top circumference of the rotating rod (1401), the guide groove (1409) is opened in the triangle of the triangular disk (1408), the rotating disk (1405) is rotatably connected to the top of the top plate (5) through a connecting shaft, the output end of the motor (4) is connected to the top of the connecting shaft through a thread, and a notch is opened on one side of the circumference of the rotating disk (1405), the guide rod (1406) is arranged on the top circumference of the connecting shaft, the guide column (1407) is fixedly connected to the bottom outer wall of the guide rod (1406) on one side close to the notch, the circumferential surface of the rotating disk (1405) is matched with the arc surface of the triangular disk (1408), and the guide column (1407) is matched with the guide groove (1409).

2. The anti-caking solid chemical storage tank according to claim 1, characterized in that: The storage mechanism (13) comprises an L-shaped bracket (1301), a placement plate (1302), a center plate (1303), a partition (1304), a movable plate (1305), a groove (1306), a clamping groove (1307), a clamping protrusion (1308), a fitting groove (1309), a sliding groove (1310) and a guide bar (1311), and the partition (1304) is fixedly connected to the back inner wall of the tank body (1) at equal distances by bolts; The groove (1306) is provided on one side of the middle of the partition (1304); the center plate (1303) is snap-fitted into the groove (1306) via the fitting groove (1309); the fitting groove (1309) and the groove (1306) fit each other; the slots (1307) are equidistantly provided on the outer walls of both sides of the center plate (1303); and the end of the L-shaped bracket (1301) is snap-fitted into the slot (1307) via the snap protrusion (1308); The locking protrusion (1308) and the locking groove (1307) are mutually engaged and adapted, and the centers of the back surfaces of the top plate (5) and the bottom plate (10) are engaged with the locking grooves (1307) at the top and bottom of the center plate (1303) through the locking protrusion (1308), and the slide groove (1310) is opened on one side of the L-shaped bracket (1301), and the placement plate (1302) is slidably inserted into the slide groove (1310), and the guide bar (1311) is arranged on one side of the placement plate (1302); The guide bar (1311) and the slide groove (1310) form a sliding fit, the placement plate (1302) is a tray with a mesh structure, and the movable plate (1305) is slidably connected to the L-shaped bracket (1301) above the placement plate (1302).

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