Storage device for powder chemical agent production

Abstract

The invention provides a storage device for powder chemical agent production, and belongs to the technical field of chemical production, the storage device comprises a storage tank and a discharging pipe communicated with the bottom of the storage tank, a hydraulic telescopic rod is arranged at the top of the storage tank, and a pushing auger capable of being inserted into the discharging pipe is arranged at the execution end of the hydraulic telescopic rod; a driving assembly used for driving the material pushing auger to rotate is arranged on the material storage tank; a partition plate is arranged in the storage tank, a blanking port for chemical powder to pass through is formed in the partition plate, and a blocking piece capable of blocking the blanking port is arranged in the storage tank; a bearing disc is arranged on a main shaft of the material pushing auger, a plurality of grooves are formed in the bearing disc, a swing rod is hinged to the interior of each groove, a limiting piece is arranged on the bearing disc, and an air bag communicated with an external air pump is arranged on the inner wall face of the conical part of the bottom of the material storage tank. According to the method, the arch breaking work can be effectively carried out while the arching phenomenon of the chemical powder is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of chemical production, and in particular to a storage device for producing powdered chemical agents. Background Art

[0002] Powdered chemicals refer to chemical substances in powder form, which are usually used as catalysts, dyes, drugs, food additives, etc. in laboratories, industrial production or daily life. In order to ensure that powdered chemicals are not affected by pollution, moisture or other external factors, after the production of powdered chemicals is completed, it is generally necessary to use storage devices to store the powdered chemicals.

[0003] In order to facilitate subsequent retrieval, existing powder storage devices are usually configured as a conical structure with the tip facing downward and discharging from the bottom. On this basis, the chemical powder stored in the bottom layer will continue to be under pressure from the chemical powder in the upper layer, which can easily cause the gaps between the chemical powders in the bottom layer to be compressed, thereby enhancing the interaction force between the chemical powders, and eventually causing the chemical powder to gradually lose its original fluidity and produce an arching phenomenon, which in turn affects the subsequent discharging work of the storage device.

[0004] Referring to the Chinese patent application document with publication number CN111619973A and publication date September 4, 2020, entitled A arch breaking device for a powder medicine storage silo, a method combining compressed airflow arch breaking with mechanical stirring arch breaking is adopted to reduce the possibility of blockage and arch formation of powder medicine in the storage silo.

[0005] Referring to the above technical solution, when the arching phenomenon occurs, the existing treatment method is generally to push or hammer the cone part of the storage device with compressed air flow to loosen the compacted chemical powder and discharge it smoothly downward. However, when compressed air is introduced, due to the close accumulation of chemical powder, the compressed air usually only forms tiny discharge pores inside the arched chemical powder based on its own flow path, and the chemical powder attached to the inner wall of the cone is difficult to be effectively cleaned; and long-term hammering may damage the cone part of the storage device, causing the cone part to sag and cause obstruction in the falling path of the chemical powder, which not only easily leads to a reduction in the service life of the equipment, but also leads to an increase in maintenance costs and downtime. Summary of the invention

[0006] In view of this, the present application provides a storage device for powder chemical production, which is mainly used to solve the problem that chemical powder is prone to arching inside the storage tank and is difficult to be effectively cleared.

[0007] In order to solve the above-mentioned technical problems, the present application provides a storage device for the production of powdered chemical agents, including a storage tank and a discharge pipe connected to the bottom thereof, and a hydraulic telescopic rod is arranged on the top of the storage tank, and the execution end of the hydraulic telescopic rod is arranged with a pushing auger capable of being inserted into the discharge pipe, and the storage tank is provided with a driving assembly for driving the pushing auger to rotate; a partition plate is arranged inside the storage tank, and a feeding port for chemical powder to pass through is provided on the partition plate, and a blocking member capable of blocking the feeding port is provided inside the storage tank, so as to divide the inner cavity of the storage tank into a plurality of independent chambers; a bearing tray is arranged on the main shaft of the pushing auger, and a plurality of grooves are provided on the bearing tray, each of which is hinged with a rocker arm, and a limit member for limiting the inclination angle of the rocker arm is arranged on the bearing tray, and an air bag connected with an external air pump is arranged on the inner wall surface of the conical part at the bottom of the storage tank, and when the external air pump supplies air to the air bag, the air bag will expand to reduce the volume of the conical part at the bottom of the storage tank.

[0008] By adopting the above technical solution, with the cooperation of the airbag and the rocker arm, the arch breaking work can be effectively completed while reducing the probability of chemical powder adhering to the conical part at the bottom of the storage tank.

[0009] Optionally, the receiving tray is arranged in a cone-shaped disk shape with the cone tip facing upward, and the maximum diameter of the receiving tray is equal to the diameter of the discharge pipe, so that the receiving tray can block the discharge pipe.

[0010] By adopting the above technical solution, when the supporting tray enters the discharge pipe and blocks the discharge pipe, the intrusion of external humid air during the discharge of chemical powder can be reduced to a certain extent, thereby reducing the possibility of chemical powder inside the storage tank agglomerating due to the influence of moisture in the external humid air.

[0011] Optionally, the piston rod of the hydraulic telescopic rod is mounted in the piston cylinder of the hydraulic telescopic rod in a rotationally connected manner, the driving assembly includes a driven gear rotationally connected to the top of the storage tank, and the driven gear is mounted on the piston rod of the hydraulic telescopic rod in an axially sliding connection manner, a first motor is provided on the storage tank, and an actuator end of the first motor is provided with a driving gear meshing with the driven gear.

[0012] By adopting the above technical solution, when the first motor is running, the piston rod of the hydraulic telescopic rod and the pusher auger can rotate together through the cooperation of the driving gear and the driven gear.

[0013] Optionally, the sealing member includes a sealing plate which is rotatably connected to the inside of the storage tank and can seal the material outlet. The sealing plate is provided with a linkage tube which can be sleeved on the outside of the main shaft of the pushing auger. A second motor is provided on the top of the storage tank, and the second motor can drive the linkage tube to rotate through gear transmission.

[0014] By adopting the above technical solution, when the second motor is running to drive the linkage pipe to rotate, the blocking plate can block the blanking opening.

[0015] Optionally, the partition plate and the sealing plate are both arranged in two layers, and a plurality of vertical scrapers capable of abutting against the inner wall of the storage tank are arranged between the outer edges of the upper and lower sealing plates. The linkage pipe is provided with horizontal scrapers corresponding one to one with the partition plates, and the horizontal scrapers are used to clean the chemical powder remaining on the upper surface of the partition plate.

[0016] By adopting the above technical solution, the vertical scraper and the horizontal scraper can cooperate to clean the inner wall of the storage tank and the upper surface of the partition plate respectively, so as to prevent the chemical powder from being accumulated for a long time and becoming deteriorated and expired.

[0017] Optionally, the limiting member includes a push block vertically slidably connected to the inside of each groove through a tension spring, and the push block can abut against the inner end of the rocker arm, and a lifting ring capable of abutting against the partition plate is vertically slidably connected to the middle of the supporting tray, and each groove is connected to the sliding cavity where the lifting ring is located through a hydraulic pipeline. When the lifting ring abuts against the partition plate and moves downward and retracts into the supporting tray, the push block will move upward along the groove under the action of the hydraulic oil inside the hydraulic pipeline.

[0018] By adopting the above technical solution, the inclination angle of the swing arm can be limited under the pushing limit of the pushing block.

[0019] Optionally, each of the grooves is slidably connected to two baffles via elastic members, which can respectively abut against the upper and lower surfaces of the rocker rod, so as to block the gap between the rocker rod and the opening of the groove.

[0020] By adopting the above technical solution, it is possible to prevent chemical powder from entering the groove through the gap between the swing rod and the opening of the groove and causing interference with the swing of the swing rod.

[0021] Optionally, a conical support net is provided inside the airbag, and the conical support net matches the inner wall of the conical part of the bottom of the storage tank to provide support for the airbag.

[0022] By adopting the above technical solution, the possibility of excessive concavity of the airbag due to excessive pressure and thus causing accumulation of chemical powder can be reduced.

[0023] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects: 1. An air bag that can expand and contract is used to replace the conical part at the bottom of the storage tank to contact the chemical powder. At the same time, a rotatable swing rod is used to break up the arched chemical powder. This can effectively complete the arch breaking work while reducing the probability of chemical powder adhering to the conical part at the bottom of the storage tank, so as to avoid the possibility of increasing the frequency of arching in the conical part at the bottom of the storage tank.

[0024] 2. Use vertical storage to reduce the pressure of the bottom layer of chemical powder on the upper layer of chemical powder, so that the chemical powder stored in the bottom layer maintains good fluidity, thereby reducing the possibility of arching.

[0025] 3. During the storage of chemical powder, the inner wall of the storage tank and the upper surface of the partition plate can be cleaned through the cooperation of the vertical scraper and the horizontal scraper to prevent the chemical powder from being accumulated for a long time and becoming deteriorated and expired. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of a storage device for producing powdered chemicals in the present application; Figure 2 This is a cross-sectional view of the storage tank for this application; Figure 3 A cross-sectional view of the tray of this application; Figure 4 This is a schematic diagram of the structure of the drive component of this application.

[0027] Explanation of the reference numerals in the accompanying drawings: 1. Storage tank; 11. Discharge pipe; 2. Hydraulic telescopic rod; 21. Pushing auger; 3. Driving assembly; 31. Driven gear; 32. First motor; 33. Driving gear; 4. Partition plate; 41. Dropping port; 42. Sealing member; 421. Sealing plate; 422. Linkage pipe; 423. Second motor; 5. Support tray; 51. Groove; 52. Rocker arm; 53. Limiting member; 531. Tension spring; 532. Pushing block; 533. Lifting ring; 534. Hydraulic pipeline; 54. Airbag; 6. Vertical scraper; 7. Horizontal scraper; 8. Baffle; 81. Elastic member; 9. Conical support net. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 4 , the technical solutions of the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0029] Reference Figure 1 and Figure 2The present embodiment provides a storage device for powder chemical production, including a storage tank 1, a discharge pipe 11, a hydraulic telescopic rod 2, a pusher auger 21, a drive assembly 3, a partition mechanism and a dredging mechanism. The discharge pipe 11 is connected to the bottom of the storage tank 1, and a pipe valve is connected in series inside the discharge pipe 11; the hydraulic telescopic rod 2 is arranged at the top of the storage tank 1, and the piston rod of the hydraulic telescopic rod 2 is sleeved in the piston cylinder of the hydraulic telescopic rod 2 in a rotating connection manner, and the pusher auger 21 is arranged at the bottom end of the piston rod of the hydraulic telescopic rod 2 and can be inserted into the discharge pipe 11.

[0030] Among them, refer to Figure 1 and Figure 4 The driving assembly 3 includes a driven gear 31, a first motor 32 and a driving gear 33. The driven gear 31 is rotatably connected to the top of the storage tank 1, and the driven gear 31 is sleeved on the piston rod of the hydraulic telescopic rod 2 in an axial sliding connection manner. The first motor 32 is arranged on the storage tank 1, and the driving gear 33 is arranged at the execution end of the first motor 32 and can mesh with the driven gear 31.

[0031] When discharging chemical powder, first open the pipe valve in series inside the discharge pipe 11, so that the chemical powder inside the storage tank 1 can be discharged from the discharge pipe 11, and then the first motor 32 runs, and the piston rod of the hydraulic telescopic rod 2 and the pushing auger 21 rotate together through the cooperation of the driving gear 33 and the driven gear 31, and at the same time, the hydraulic telescopic rod 2 extends downward, and the pushing auger 21 completes the preliminary dredging work.

[0032] Among them, refer to Figure 2 and Figure 4 The partition mechanism includes a partition plate 4, a material drop opening 41 and a blocking member 42. The partition plate 4 is arranged inside the storage tank 1, and the material drop opening 41 is opened on the partition plate 4 and can allow the chemical powder to pass through; the blocking member 42 includes a blocking plate 421, a linkage pipe 422 and a second motor 423, the blocking plate 421 is rotatably connected inside the storage tank 1 and can block the material drop opening 41, the linkage pipe 422 is arranged on the blocking plate 421 and can be sleeved on the outside of the main shaft of the push auger 21, the second motor 423 is arranged on the top of the storage tank 1, and the second motor 423 can drive the linkage pipe 422 to rotate by gear transmission, so as to divide the inner cavity of the storage tank 1 into multiple independent chambers.

[0033] During the storage of chemical powder, the second motor 423 drives the linkage tube 422 and the sealing plate 421 to rotate together, so that the sealing plate 421 blocks the drop-out opening 41 on the partition plate 4. At this time, the inner cavity of the storage tank 1 will be divided into multiple independent chambers to prevent the chemical powder stored in the bottom layer from being subjected to excessive pressure from the upper layer of chemical powder, thereby reducing the possibility of arching.

[0034] Among them, refer to Figure 2 and Figure 3 The dredging mechanism includes a supporting tray 5, a groove 51, a swing rod 52, a limiting member 53 and an airbag 54. The support tray 5 is arranged on the main shaft of the pushing auger 21, and a plurality of grooves 51 are arranged and are opened on the support tray 5 in a circular array. A rocker arm 52 is hinged inside each groove 51, and an air bag 54 is arranged on the inner wall surface of the conical part at the bottom of the storage tank 1, and the air bag 54 is connected to an external air pump. When the external air pump supplies air to the air bag 54, the air bag 54 will expand to reduce the volume of the conical part at the bottom of the storage tank 1; the limiting member 53 includes a push block 532, a tension spring 531, a lifting ring 533 and a hydraulic pipeline 534. The push block 532 is provided with a plurality of grooves 51 and is vertically slidably connected to the inside of the grooves 51 corresponding to itself one by one through the tension spring 531. The lifting ring 533 is vertically slidably connected to the middle part of the support tray 5 and can abut against the partition plate 4, and each groove 51 is connected to the sliding cavity where the lifting ring 533 is located through the hydraulic pipeline 534. In the initial state, the lifting ring 533 will abut against the partition plate 4 and move down and retract into the supporting tray 5. The pushing block 532 will move up along the groove 51 under the action of the hydraulic oil inside the hydraulic pipeline 534 and push the inner end of the rocker arm 52 upward, so that the rocker arm 52 is in a horizontal state.

[0035] If the chemical powder is arched inside the storage tank 1, the partition plate 4 will rotate as the pusher auger 21 rotates downward, causing the swing rod 52 to break up the arched chemical powder. When the partition plate 4 enters the discharge pipe 11, the hydraulic telescopic rod 2 is in an extreme extension state, the lifting ring 533 does not contact the partition plate 4, and the push block 532 is away from the swing rod 52 under the action of the tension spring 531. In this process, the swing rod 52 loses the restriction of the push block 532 and is in a free state, and the swing rod 52 will swing irregularly within a certain range as the partition plate 4 rotates, so as to break up the chemical powder at different positions. Then the external air pump alternately performs vacuuming and blowing, causing the airbag 54 to alternately expand and contract (during this process, part of the chemical powder in the space where the airbag 54 is located has been discharged), thereby shaking off the chemical powder on the airbag 54. At this time, the outer end of the rocker arm 52 can contact the airbag 54, and the contact point between the two will change with the expansion and contraction of the airbag 54, causing the rocker arm 52 to swing up and down again, and the rocker arm 52 produces further flexible knocking on the airbag 54, which is conducive to the chemical powder on the airbag 54 falling off and improving the effect of the arch breaking work.

[0036] Reference Figure 2 and Figure 3 The receiving tray 5 is arranged in a cone-shaped disk shape with the cone tip facing upward, and the maximum diameter of the receiving tray 5 is equal to the diameter of the discharge pipe 11 , so the receiving tray 5 can block the discharge pipe 11 .

[0037] When the supporting tray 5 enters the discharge pipe 11 and blocks the discharge pipe 11, the intrusion of external humid air during the discharge of chemical powder can be reduced to a certain extent, thereby reducing the possibility of agglomeration of chemical powder inside the storage tank 1 due to the influence of moisture in the external humid air, and further reducing the probability of arching of chemical powder during subsequent storage.

[0038] Reference Figure 2 The partition plate 4 and the sealing plate 421 are both arranged in two layers, and a plurality of vertical scrapers 6 capable of abutting against the inner wall of the storage tank 1 are arranged between the outer edges of the upper and lower sealing plates 421. The linkage pipe 422 is provided with horizontal scrapers 7 corresponding to the partition plates 4 one by one, and the horizontal scrapers 7 are used to clean the chemical powder remaining on the upper surface of the partition plate 4.

[0039] During the rotation and opening and closing process of the sealing plate 421, the vertical scraper 6 and the horizontal scraper 7 can clean the inner wall of the storage tank 1 and the upper surface of the partition plate 4 respectively to prevent the chemical powder from being accumulated for a long time and becoming deteriorated and expired.

[0040] Reference Figure 3 Each groove 51 is slidably connected to two baffles 8 through an elastic member 81, which can respectively abut against the upper and lower surfaces of the swing rod 52, and are used to block the gap between the swing rod 52 and the opening of the groove 51.

[0041] The baffle 8 can always press against the swing rod 52 with the cooperation of the elastic member 81 to prevent chemical powder from entering the groove 51 through the gap between the swing rod 52 and the opening of the groove 51 and interfering with the swing of the swing rod 52 .

[0042] Reference Figure 2 A conical support net 9 is arranged inside the airbag 54 , and the conical support net 9 is matched with the inner wall of the conical part at the bottom of the storage tank 1 to provide support for the airbag 54 .

[0043] The conical support net 9 provides rigid support to the airbag 54 when it is in a contracted state, thereby reducing the possibility of excessive depression of the airbag 54 due to excessive pressure, which may lead to accumulation of chemical powder.

[0044] The implementation principle of a storage device for powder chemical production in the present application embodiment is as follows: When discharging chemical powder, first open the pipe valve in series inside the discharge pipe 11, so that the chemical powder inside the storage tank 1 can be discharged from the discharge pipe 11, and then the first motor 32 runs, and the piston rod of the hydraulic telescopic rod 2 and the pushing auger 21 rotate together through the cooperation of the driving gear 33 and the driven gear 31, and at the same time, the hydraulic telescopic rod 2 extends downward, and the pushing auger 21 completes the preliminary dredging work.

[0045] During the storage of chemical powder, the second motor 423 drives the linkage tube 422 and the sealing plate 421 to rotate together, so that the sealing plate 421 blocks the drop-out opening 41 on the partition plate 4. At this time, the inner cavity of the storage tank 1 will be divided into multiple independent chambers to prevent the chemical powder stored in the bottom layer from being subjected to excessive pressure from the upper layer of chemical powder, thereby reducing the possibility of arching.

[0046] If the chemical powder is arched inside the storage tank 1, the partition plate 4 will rotate as the pusher auger 21 rotates downward, causing the swing rod 52 to break up the arched chemical powder. When the partition plate 4 enters the discharge pipe 11, the hydraulic telescopic rod 2 is in an extreme extension state, the lifting ring 533 does not contact the partition plate 4, and the push block 532 is away from the swing rod 52 under the action of the tension spring 531. In this process, the swing rod 52 loses the restriction of the push block 532 and is in a free state, and the swing rod 52 will swing irregularly within a certain range as the partition plate 4 rotates, so as to break up the chemical powder at different positions.

[0047] Then the external air pump alternately performs vacuuming and blowing, causing the airbag 54 to alternately expand and contract (during this process, part of the chemical powder in the space where the airbag 54 is located has been discharged), thereby shaking off the chemical powder on the airbag 54. At this time, the outer end of the rocker arm 52 can contact the airbag 54, and the contact point between the two will change with the expansion and contraction of the airbag 54, causing the rocker arm 52 to swing up and down again, and the rocker arm 52 produces further flexible knocking on the airbag 54, which is conducive to the chemical powder on the airbag 54 falling off and improving the effect of the arch breaking work.

[0048] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A storage device for producing powdered chemical agents, comprising a storage tank (1) and a discharge pipe (11) connected to the bottom thereof, wherein a hydraulic telescopic rod (2) is arranged on the top of the storage tank (1), and a pusher auger (21) capable of being inserted into the discharge pipe (11) is arranged at the execution end of the hydraulic telescopic rod (2), and a drive assembly (3) for driving the pusher auger (21) to rotate is arranged on the storage tank (1), characterized in that: The storage tank (1) is provided with a partition plate (4) inside, and a material drop opening (41) is provided on the partition plate (4) for the chemical powder to pass through, and a blocking member (42) is provided inside the storage tank (1) capable of blocking the material drop opening (41), so as to divide the inner cavity of the storage tank (1) into a plurality of independent chambers; A bearing tray (5) is arranged on the main shaft of the push auger (21), and a plurality of grooves (51) are provided on the bearing tray (5), a swing rod (52) is hinged inside each groove (51), and a limiter (53) for limiting the tilt angle of the swing rod (52) is arranged on the bearing tray (5), and an air bag (54) connected to an external air pump is arranged on the inner wall surface of the conical part at the bottom of the storage tank (1), and when the external air pump supplies air to the air bag (54), the air bag (54) will expand to reduce the volume of the conical part at the bottom of the storage tank (1).

2. A storage device for powder chemical production according to claim 1, characterized in that: The support tray (5) is arranged in the shape of a cone with the cone tip facing upwards, and the maximum diameter of the support tray (5) is equal to the diameter of the discharge pipe (11), so that the support tray (5) can block the discharge pipe (11).

3. A storage device for powder chemical production according to claim 1, characterized in that: The piston rod of the hydraulic telescopic rod (2) is sleeved in the piston cylinder of the hydraulic telescopic rod (2) in a rotatable connection manner, the driving assembly (3) comprises a driven gear (31) rotatably connected to the top of the storage tank (1), and the driven gear (31) is sleeved on the piston rod of the hydraulic telescopic rod (2) in an axially sliding connection manner, the storage tank (1) is provided with a first motor (32), and the execution end of the first motor (32) is provided with a driving gear (33) meshing with the driven gear (31).

4. A storage device for powder chemical production according to claim 1, characterized in that: The blocking member (42) comprises a blocking plate (421) rotatably connected to the inside of the material storage tank (1) and capable of blocking the material discharge port (41); a linkage tube (422) capable of being sleeved on the outside of the main shaft of the pusher auger (21) is arranged on the blocking plate (421); a second motor (423) is arranged on the top of the material storage tank (1), and the second motor (423) can drive the linkage tube (422) to rotate by means of gear transmission.

5. A storage device for powder chemical production according to claim 4, characterized in that: The partition plate (4) and the sealing plate (421) are both arranged in two layers, and a plurality of vertical scrapers (6) capable of abutting against the inner wall of the storage tank (1) are arranged between the outer edges of the upper and lower sealing plates (421). The linkage pipe (422) is provided with horizontal scrapers (7) corresponding one to one with the partition plates (4). The horizontal scrapers (7) are used to clean the chemical powder remaining on the upper surface of the partition plate (4).

6. A storage device for powder chemical production according to claim 1, characterized in that: The limiting member (53) comprises a push block (532) vertically slidably connected inside each groove (51) via a tension spring (531), and the push block (532) can abut against the inner end of the swing rod (52), and a lifting ring (533) capable of abutting against the partition plate (4) is vertically slidably connected to the middle of the support tray (5), and each groove (51) is connected to a sliding cavity where the lifting ring (533) is located via a hydraulic pipeline (534), and when the lifting ring (533) abuts against the partition plate (4) and moves downward and retracts into the support tray (5), the push block (532) moves upward along the groove (51) under the action of the hydraulic oil inside the hydraulic pipeline (534).

7. A storage device for powder chemical production according to claim 6, characterized in that: Each of the grooves (51) is slidably connected to two baffles (8) via an elastic member (81) that can respectively abut against the upper and lower surfaces of the swing rod (52) and are used to block the gap between the swing rod (52) and the opening of the groove (51).

8. A storage device for powder chemical production according to claim 1, characterized in that: A conical support net (9) is arranged inside the air bag (54), and the conical support net (9) matches the inner wall of the conical part at the bottom of the storage tank (1), so as to provide support for the air bag (54).

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