Concentrated sulfuric acid storage access device

Abstract

The utility model discloses a concentrated sulfuric acid storage access device which comprises a temporary storage box, a storage box, a butt joint transmission assembly, a collection assembly, a clamping sealing assembly and a leakage-proof discharging assembly. A storage box for receiving and storing concentrated sulfuric acid is arranged on the outer side of the temporary storage box, a butt joint transmission assembly which is in butt joint with the two box bodies to receive the concentrated sulfuric acid is arranged between the storage box and the temporary storage box, and a collection assembly for collecting concentrated sulfuric acid transmission residues is installed on the outer wall of the temporary storage box; the edge of the upper end of the storage box is provided with a clamping sealing assembly capable of conducting two sets of butt joint transmission sealing butt joint openings, and the outer end of the storage box is provided with a leakage-proof discharging assembly for sealing the storage box to conduct stable discharging. The connecting positions of the two ends of the conveying pipe and the box body are clamped and sealed through the inserting rods, it is guaranteed that concentrated sulfuric acid is not prone to leakage in the transportation and storage process, the concentrated sulfuric acid is tightly attached to the conveying pipe and the box body connector, leakage of the sulfuric acid and volatilization of the concentrated sulfuric acid are effectively prevented, and pollution to the surrounding environment is avoided.

Description

Technical Field

[0001] The utility model relates to the field of access devices, in particular to a concentrated sulfuric acid storage access device. Background Art

[0002] Concentrated sulfuric acid is a chemical substance, which is an aqueous solution of sulfuric acid with a mass fraction greater than or equal to 70%, commonly known as "bad water". It has strong corrosiveness and strong oxidizing properties, and can corrode all metals except iridium and ruthenium under normal pressure. When the concentration of concentrated sulfuric acid is high, it has strong oxidizing properties. When storing concentrated sulfuric acid, equipment for storing and accessing concentrated sulfuric acid is required to safely transfer concentrated sulfuric acid from the storage container to the equipment that needs to use it. When accessing and storing concentrated sulfuric acid, a concentrated sulfuric acid storage access device is needed. In the existing access device, during the access process, concentrated sulfuric acid is transported into the storage container through a transfer pipe for storage. Since there is a certain amount of residual concentrated sulfuric acid liquid remaining at the connection of the box body after the transfer pipe transports, it will corrode the material at the connection of the equipment, causing the connection to become loose and the sealing to be poor, resulting in equipment damage and leakage, and reducing the use safety of the equipment. Therefore, we propose a concentrated sulfuric acid storage access device to solve the problems mentioned above. Content of the Utility Model

[0003] In order to overcome the problem that in the existing access device, due to the remaining certain amount of residual concentrated sulfuric acid liquid at the connection of the box body after the transfer pipe transports, it will corrode the material at the connection of the equipment, causing the connection to become loose and the sealing to be poor, resulting in equipment damage and leakage, and reducing the use safety of the equipment.

[0004] The technical solution of the utility model is as follows: a concentrated sulfuric acid storage access device, including a temporary storage box, a storage box, a docking transfer component, a collection component, a clamping and sealing component, and a leak-proof discharging component; a storage box for accessing and storing concentrated sulfuric acid is arranged outside the temporary storage box, a docking transfer component for docking the two boxes to access concentrated sulfuric acid is arranged between the storage box and the temporary storage box, a collection component for collecting the residual of concentrated sulfuric acid during transmission is installed on the outer wall of the temporary storage box, a clamping and sealing component capable of performing two sets of docking transfer sealing interfaces is installed on the upper edge of the storage box, and a leak-proof discharging component for sealing the storage box and discharging stably is installed at the outer end of the storage box.

[0005] Preferably, the two ends of the transfer pipe are clamped and sealed with the box body by inserting rods, ensuring that concentrated sulfuric acid is not easily leaked during transportation and storage, closely fitting the transfer pipe and the box body interface, effectively preventing sulfuric acid leakage and concentrated sulfuric acid volatilization, avoiding pollution to the surrounding environment, reducing the risk of harm to the environment and personnel. By rotating the rotating rod with the rotating buckle, the blocking ring is opened or closed. Through the rotation of the rotating rod, the flow rate of concentrated sulfuric acid can be precisely controlled, avoiding accidents caused by improper operation. And by precisely controlling the flow rate of concentrated sulfuric acid, waste of resources due to excessive amount can be effectively avoided. The liquid transfer is blocked by using a blocking valve combined with a blocking plate to achieve a double blocking form, effectively preventing concentrated sulfuric acid from leaking, and the blocking valve can quickly cut off the liquid transfer in case of emergency. The residual liquid at the docking interface is collected by the transfer plate, and the liquid is recycled by the transfer block combined with the diversion pipe, reducing the possibility of concentrated sulfuric acid contacting other substances. And the recycled concentrated sulfuric acid liquid can be used again in production or other processes, avoiding waste of resources, reducing the consumption of production raw materials, and lowering the production cost. The two sets of transfer ports are sealed by the sealing block, enabling the double liquid transfer of the storage box, realizing the double liquid transfer of the storage box, facilitating the replenishment of concentrated sulfuric acid, and at the same time facilitating the cleaning of the residues inside the box body to keep the inside of the storage box clean. The discharge pipe is sealed by the sealing plate combined with the ball valve, effectively preventing the leakage of concentrated sulfuric acid during storage and transportation, and the ball valve can quickly cut off or open the discharge pipe to block and transfer the liquid, avoiding the overflow of concentrated sulfuric acid.

[0006] Preferably, the docking transfer assembly includes a transfer pipe, a connection sealing ring, a blocking valve, a connecting rod, a limiting plate, an inserting rod, a rotating buckle, a rotating rod and a blocking ring. A connection sealing ring is provided at one end of the outer end of the transfer pipe. A limiting plate is provided at the end of the transfer pipe away from the connection sealing ring. Inserting rods are provided between the limiting plate and the outer end of the connection sealing ring. The inserting rods pass through the limiting plate and extend into the connection sealing plate. By using the inserting rods to clamp and seal the connections between the two ends of the transfer pipe and the box body, it is ensured that concentrated sulfuric acid is not easily leaked during transportation and storage, closely fitting the transfer pipe and the box body interface, effectively preventing sulfuric acid leakage and concentrated sulfuric acid volatilization, avoiding pollution to the surrounding environment, and reducing the risk of harm to the environment and personnel.

[0007] Preferably, a rotating buckle is provided on the outer side of the transfer pipe near the connection sealing ring. A rotating rod is provided inside the rotating buckle. The rotating rod passes through the rotating buckle and extends into it. A blocking ring is provided at the end of the rotating rod away from the rotating buckle. By rotating the rotating rod with the rotating buckle, the blocking ring is opened or closed. Through the rotation of the rotating rod, the flow rate of concentrated sulfuric acid can be precisely controlled, avoiding accidents caused by improper operation. And by precisely controlling the flow rate of concentrated sulfuric acid, waste of resources due to excessive amount can be effectively avoided.

[0008] Preferably, a blocking valve is provided on the outer side of the transfer pipe close to the limit plate. A connecting rod is provided between the blocking valve and the transfer pipe. The connecting rod extends into the interior of the transfer pipe. A blocking plate is provided at one end of the connecting rod away from the blocking valve. By using the blocking valve in combination with the blocking plate to block the liquid transfer, a double-blocking form is achieved, effectively preventing the leakage of concentrated sulfuric acid, avoiding harm to personnel and the environment, and the blocking valve can quickly cut off the liquid transfer in case of emergency, reducing the accident risk.

[0009] Preferably, the collection assembly includes a docking ring, a transfer plate, a transfer block, and a diversion pipe. The docking ring is fitted with the limit plate. A limit hole for accommodating the insertion rod is provided at the outer end of the docking ring. A transfer plate is provided at the lower end of the docking ring. A transfer block is provided at one end of the transfer plate away from the docking ring. A diversion pipe is provided on the inner side of the transfer block at the inner wall of the temporary storage box. By using the transfer plate to collect the residual liquid at the docking port and combining the transfer block with the diversion pipe to recycle the liquid, the possibility of concentrated sulfuric acid contacting other substances is reduced, which is beneficial to reducing the environmental pollution caused by concentrated sulfuric acid, and the recycled concentrated sulfuric acid liquid can be reused in production or other processes, avoiding waste of resources, reducing the consumption of production raw materials, and lowering the production cost.

[0010] Preferably, the clamping and sealing assembly includes a connecting block and a sealing block. The sealing block is fitted with the upper end of the storage box. A sealing ring is provided at the lower end of the sealing block. A connecting block is provided at the center of the upper end of the sealing block. By using the sealing block to seal the two sets of transfer ports, double-liquid transfer of the storage box can be realized, which is convenient for replenishing concentrated sulfuric acid and at the same time facilitates cleaning the residues inside the box to keep the inside of the storage box clean.

[0011] Preferably, the leak-proof discharging assembly includes a discharging pipe, a fixing block, a connecting belt, and a sealing plate. The fixing block is located at the outer end of the discharging pipe. A connecting belt is provided at the upper end of the fixing block. A sealing plate is provided at one end of the discharging pipe away from the storage box. The connecting belt is connected to the sealing plate. A ball valve is provided at the lower end of the discharging pipe. By using the sealing plate in combination with the ball valve to seal the discharging pipe, the leakage of concentrated sulfuric acid during storage and transportation is effectively prevented, and the ball valve can quickly cut off or open the discharging pipe to block and transfer the liquid, avoiding the overflow of concentrated sulfuric acid.

[0012] The beneficial effects of the present utility model:

[0013] 1. Compared with the traditional access device, the plug rod is used to clamp and seal the connection between the two ends of the transmission pipe and the box body, ensuring that the concentrated sulfuric acid is not easy to leak during transportation and storage. It fits tightly with the interface of the transmission pipe and the box body, effectively preventing sulfuric acid leakage and volatilization, avoiding pollution to the surrounding environment, and reducing the risk of harm to the environment and personnel. The rotating rod is rotated by the rotating buckle to open or close the blocking ring. The flow of concentrated sulfuric acid can be accurately controlled by rotating the rotating rod to avoid accidents caused by improper operation. And by accurately controlling the flow of concentrated sulfuric acid, it can effectively avoid waste of resources due to excessive.

[0014] 2. By using a blocking valve in combination with a blocking plate to block liquid transmission, a double blocking form is achieved to effectively prevent leakage of concentrated sulfuric acid. The blocking valve can quickly cut off liquid transmission in an emergency. The transmission plate is used to collect the residual liquid at the interface, and the transmission block is combined with the guide pipe to recover the liquid, reducing the possibility of concentrated sulfuric acid contacting other substances. The recovered concentrated sulfuric acid liquid can be reused in production or other links, avoiding waste of resources, reducing the consumption of production raw materials, and reducing production costs.

[0015] 3. By using sealing blocks to seal two groups of transmission ports, double liquid transmission can be used for the storage box, which is convenient for replenishing concentrated sulfuric acid and cleaning the residue inside the box to keep the inside of the storage box clean. The sealing plate is combined with the ball valve to seal the discharge pipe, which effectively prevents the leakage of concentrated sulfuric acid during storage and transportation. The ball valve can quickly cut off or open the discharge pipe, block and transmit liquid, and avoid the overflow of concentrated sulfuric acid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the docking transmission component of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the collection component of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the temporary storage box of the utility model.

[0020] Description of reference numerals: 1. Temporary storage box; 2. Storage box; 3. Docking and transmission component; 301. Transmission pipe; 302. Connecting sealing ring; 303. Blocking valve; 304. Connecting rod; 305. Limiting plate; 306. Plug rod; 307. Rotating buckle; 308. Rotating rod; 309. Blocking ring; 4. Collection component; 401. Docking ring; 402. Transmission plate; 403. Transmission block; 404. Diversion pipe; 5. Clamping and sealing component; 501. Connecting clamping block; 502. Sealing block; 6. Leak-proof discharging component; 601. Discharge pipe; 602. Fixed block; 603. Connecting belt; 604. Sealing plate. Detailed implementation mode

[0021] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Please refer to Figures 1-4 , the present utility model provides an embodiment: a concentrated sulfuric acid storage access device, including a temporary storage box 1, a storage box 2, a docking and transmission component 3, a collection component 4, a clamping and sealing component 5 and a leak-proof discharging component 6; a storage box 2 for connecting concentrated sulfuric acid for storage is arranged outside the temporary storage box 1, a docking and transmission component 3 for connecting the two boxes to access concentrated sulfuric acid is arranged between the storage box 2 and the temporary storage box 1, a collection component 4 for collecting the residue of concentrated sulfuric acid transmission is installed on the outer wall of the temporary storage box 1, a clamping and sealing component 5 capable of performing two sets of docking transmission sealing interfaces is installed on the upper edge of the storage box 2, and a leak-proof discharging component 6 for stably discharging the sealed storage box 2 is installed at the outer end of the storage box 2.

[0023] Please refer to Figures 1-2, in this embodiment, the docking and transmission component 3 includes a transmission pipe 301, a connection sealing ring 302, a blocking valve 303, a connecting rod 304, a limiting plate 305, a plug rod 306, a rotating buckle 307, a rotating rod 308 and a blocking ring 309. A connection sealing ring 302 is provided at one end of the outer end of the transmission pipe 301, and a limiting plate 305 is provided at the end of the transmission pipe 301 away from the connection sealing ring 302. A plug rod 306 is provided between the limiting plate 305 and the outer end of the connection sealing ring 302. The plug rod 306 passes through the limiting plate 305 and extends to the inside with the connection sealing plate 604. By using the plug rod 306 to clamp and seal the connection between both ends of the transmission pipe 301 and the box body, it is ensured that concentrated sulfuric acid is not easily leaked during transportation and storage, closely fits the interfaces of the transmission pipe 301 and the box body, effectively prevents sulfuric acid leakage and concentrated sulfuric acid volatilization, avoids polluting the surrounding environment, and reduces the risk of harm to the environment and personnel. A rotating buckle 307 is provided on the outer side of the transmission pipe 301 close to the connection sealing ring 302. A rotating rod 308 is provided inside the rotating buckle 307. The rotating rod 308 passes through the rotating buckle 307 and extends to the inside. A blocking ring 309 is provided at the end of the rotating rod 308 away from the rotating buckle 307. By rotating the rotating rod 308 with the rotating buckle 307, the blocking ring 309 is opened or closed. By rotating the rotating rod 308, the flow rate of concentrated sulfuric acid can be precisely controlled, avoiding accidental accidents caused by improper operation. Moreover, by precisely controlling the flow rate of concentrated sulfuric acid, waste of resources caused by overage can be effectively avoided.

[0024] Please refer to Figures 2-3, in this embodiment, a blocking valve 303 is provided on the outer side of the transfer pipe 301 close to the limiting plate 305. A connecting rod 304 is provided between the blocking valve 303 and the transfer pipe 301. The connecting rod 304 extends into the interior of the transfer pipe 301. A blocking plate is provided at one end of the connecting rod 304 away from the blocking valve 303. By using the blocking valve 303 in combination with the blocking plate to block the liquid transfer, a double-blocking form is achieved, effectively preventing the leakage of concentrated sulfuric acid, avoiding harm to personnel and the environment, and the blocking valve 303 can quickly cut off the liquid transfer in case of emergency, reducing the accident risk. The collection assembly 4 includes a docking ring 401, a transfer plate 402, a transfer block 403, and a diversion pipe 404. The docking ring 401 is fitted with the limiting plate 305. A limiting hole for accommodating the insertion rod 306 is provided at the outer end of the docking ring 401. A transfer plate 402 is provided at the lower end of the docking ring 401. A transfer block 403 is provided at one end of the transfer plate 402 away from the docking ring 401. A diversion pipe 404 is provided on the inner wall of the temporary storage box 1 at the inner side of the transfer block 403. By using the transfer plate 402 to collect the residual liquid at the docking port, and the transfer block 403 in combination with the diversion pipe 404 to recycle the liquid, the possibility of concentrated sulfuric acid contacting other substances is reduced, which is beneficial to reducing the environmental pollution of concentrated sulfuric acid, and the recycled concentrated sulfuric acid liquid can be used again in production or other processes, avoiding waste of resources, reducing the consumption of production raw materials, and reducing the production cost.

[0025] Please refer to Figures 2-4 , in this embodiment, the clamping and sealing assembly 5 includes a connecting block 501 and a sealing block 502. The sealing block 502 is fitted with the upper end of the storage box 2. A sealing ring is provided at the lower end of the sealing block 502. A connecting block 501 is provided at the center of the upper end of the sealing block 502. By using the sealing block 502 to seal the two sets of transfer ports, double-liquid transfer of the storage box 2 can be realized, facilitating the replenishment of concentrated sulfuric acid, and at the same time facilitating the cleaning of the residues inside the box body, keeping the inside of the storage box 2 clean. The leak-proof discharging assembly 6 includes a discharging pipe 601, a fixing block 602, a connecting belt 603, and a sealing plate 604. The fixing block 602 is located at the outer end of the discharging pipe 601. A connecting belt 603 is provided at the upper end of the fixing block 602. A sealing plate 604 is provided at the end of the discharging pipe 601 away from the storage box 2. The connecting belt 603 is connected to the sealing plate 604. A ball valve is provided at the lower end of the discharging pipe 601. By using the sealing plate 604 in combination with the ball valve to seal the discharging pipe 601, the leakage of concentrated sulfuric acid during storage and transportation is effectively prevented, and the ball valve can quickly cut off or open the discharging pipe 601 to block and transfer the liquid, avoiding the overflow of concentrated sulfuric acid.

[0026] When working, first place the temporary storage box 1 containing concentrated sulfuric acid and the storage box 2 without concentrated sulfuric acid side by side. First, align the limiting plate 305 at one end of the transfer pipe 301 with the docking ring 401, and insert the insertion rod 306 through the limiting hole at the outer end of the limiting plate 305 into the docking ring 401 to form a limiting fixation. When the transfer pipe 301 is fixed at the outer end of the temporary storage box 1, dock and fit the connection sealing ring 302 at the end of the transfer pipe 301 away from the temporary storage box 1 with the transfer port at the upper end of the storage box 2. Then, use the insertion rod 306 to insert into the limiting hole again to seal and fix the sealing connection ring with the storage box 2, ensuring that concentrated sulfuric acid is not easily leaked during transportation and storage, and closely fitting the transfer pipe 301 and the box body interface.

[0027] After the transfer pipe 301 is connected and fixed, place the two groups of boxes stably. First, manually rotate the blocking valve 303 to drive the connecting rod 304 to rotate, and use the connecting rod 304 to adjust the opening and closing of the baffle inside the transfer pipe 301. Utilize the vacuum state inside the temporary storage box 1 to squeeze and transfer the concentrated sulfuric acid out through the transfer pipe 301. After the baffle is opened, manually hold the rotating buckle 307 and rotate the rotating rod 308 clockwise to make the blocking ring 309 inside the transfer pipe 301 rotate, and fully open the transfer pipe 301 for transmission. After transmission, a double-blocking form can be achieved, and the transmission flow rate of concentrated sulfuric acid can be precisely controlled. When the two groups of boxes need to transmit together, open the second transfer port by using the sealing block 502 to achieve the transmission of double liquids to the storage box 2, which is convenient for replenishing concentrated sulfuric acid and at the same time facilitates cleaning the residues inside the box body to keep the inside of the storage box 2 clean.

[0028] After the concentrated sulfuric acid is connected for transmission, use the transfer plate 402 to vertically collect the residual liquid inside the docking ring 401, which flows into the transfer block 403, and then drain the concentrated sulfuric acid into the temporary storage box 1 through the diversion pipe 404 to achieve the recovery of concentrated sulfuric acid. When it is necessary to drain the concentrated sulfuric acid inside the storage box 2, first open the sealing plate 604 at one end of the discharge pipe 601, dock the docking pipe with the discharge pipe 601, and manually rotate the ball valve to open the discharge pipe 601, so that the concentrated sulfuric acid inside the storage box 2 is connected again, thereby realizing the access and storage of concentrated sulfuric acid.

[0029] Through the above steps, the connection points between the two ends of the transfer pipe 301 and the box body are clamped and sealed by using the insertion rod 306, ensuring that concentrated sulfuric acid is not easily leaked during transportation and storage. It closely fits the interface between the transfer pipe 301 and the box body, effectively preventing sulfuric acid leakage and the volatilization of concentrated sulfuric acid, avoiding environmental pollution, reducing the risk of harm to the environment and personnel. By rotating the rotary buckle 307 to rotate the rotary rod 308, the blocking ring 309 is opened or closed. Through the rotation of the rotary rod 308, the flow rate of concentrated sulfuric acid can be precisely controlled, avoiding accidental accidents caused by improper operation. And by precisely controlling the flow rate of concentrated sulfuric acid, resource waste caused by overuse can be effectively avoided. The blocking valve 303 is combined with the blocking plate to block the liquid transmission, realizing a double-blocking form, effectively preventing the leakage of concentrated sulfuric acid, and the blocking valve 303 can quickly cut off the liquid transmission in case of emergency. The transfer plate 402 is used to collect the residual liquid at the butting interface, and the liquid is recycled by the transfer block 403 combined with the diversion pipe 404, reducing the possibility of concentrated sulfuric acid contacting other substances. And the recycled concentrated sulfuric acid liquid can be used again in production or other processes, avoiding resource waste, reducing the consumption of production raw materials, and lowering the production cost. The two groups of transfer ports are sealed by the sealing block 502, enabling the double-liquid transmission of the storage box 2, realizing the double-liquid transmission of the storage box 2, facilitating the replenishment of concentrated sulfuric acid, and at the same time facilitating the cleaning of the residues inside the box body, keeping the inside of the storage box 2 clean. The discharge pipe 601 is sealed by the sealing plate 604 combined with the ball valve, effectively preventing the leakage of concentrated sulfuric acid during storage and transportation, and the ball valve can quickly cut off or open the discharge pipe 601 to block and transmit the liquid, avoiding the overflow of concentrated sulfuric acid.

[0030] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A concentrated sulfuric acid storage access device, comprising a temporary storage box (1); characterized in that: The temporary storage box (1) further comprises a storage box (2), a docking transmission component (3), a collecting component (4), a snap-on sealing component (5) and a leak-proof discharge component (6); a storage box (2) for receiving and storing concentrated sulfuric acid is provided on the outer side of the temporary storage box (1); a docking transmission component (3) for docking two groups of boxes for receiving concentrated sulfuric acid is provided between the storage box (2) and the temporary storage box (1); a collecting component (4) for collecting concentrated sulfuric acid transmission residue is installed on the outer wall of the temporary storage box (1); a snap-on sealing component (5) for two groups of docking transmission sealing interfaces is installed on the upper edge of the storage box (2); and a leak-proof discharge component (6) for sealing the storage box (2) for stable discharge is installed on the outer end of the storage box (2).

2. A concentrated sulfuric acid storage access device according to claim 1, characterized in that: The docking transmission component (3) comprises a transmission tube (301), a connecting sealing ring (302), a blocking valve (303), a connecting rod (304), a limiting plate (305), an inserting rod (306), a rotating buckle (307), a rotating rod (308) and a blocking ring (309), wherein one end of the outer end of the transmission tube (301) is provided with a connecting sealing ring (302), and one end of the transmission tube (301) away from the connecting sealing ring (302) is provided with a limiting plate (305), and the outer ends of the limiting plate (305) and the connecting sealing ring (302) are provided with an inserting rod (306), and the inserting rod (306) passes through the limiting plate (305) and the connecting sealing plate (604) and extends to the interior.

3. A concentrated sulfuric acid storage access device according to claim 2, characterized in that: A rotating buckle (307) is provided on the outer side of the transmission tube (301) close to the connection sealing ring (302), a rotating rod (308) is provided inside the rotating buckle (307), the rotating rod (308) passes through the rotating buckle (307) and extends to the inside, and a blocking ring (309) is provided at one end of the rotating rod (308) away from the rotating buckle (307).

4. A concentrated sulfuric acid storage access device according to claim 2, characterized in that: A blocking valve (303) is provided on the outer side of the transmission pipe (301) close to the limit plate (305), a connecting rod (304) is provided between the blocking valve (303) and the transmission pipe (301), the connecting rod (304) extends into the interior of the transmission pipe (301), and a blocking plate is provided at one end of the connecting rod (304) away from the blocking valve (303).

5. A concentrated sulfuric acid storage access device according to claim 2, characterized in that: The collecting assembly (4) comprises a docking ring (401), a transmission plate (402), a transmission block (403) and a guide tube (404); the docking ring (401) is arranged in close contact with the limiting plate (305); a limiting hole for accommodating the insertion rod (306) is provided at the outer end of the docking ring (401); a transmission plate (402) is provided at the lower end of the docking ring (401); a transmission block (403) is provided at one end of the transmission plate (402) away from the docking ring (401); and a guide tube (404) is provided on the inner wall of the temporary storage box (1) on the inner side of the transmission block (403).

6. A concentrated sulfuric acid storage access device according to claim 1, characterized in that: The clamping seal assembly (5) comprises a connecting clamp block (501) and a sealing block (502); the sealing block (502) is arranged in close contact with the upper end of the storage box (2); a sealing ring is arranged at the lower end of the sealing block (502); and a connecting clamp block (501) is arranged at the center of the upper end of the sealing block (502).

7. A concentrated sulfuric acid storage access device according to claim 1, characterized in that: The leak-proof discharge assembly (6) comprises a discharge pipe (601), a fixed block (602), a connecting belt (603) and a sealing plate (604); the fixed block (602) is located at the outer end of the discharge pipe (601); a connecting belt (603) is provided at the upper end of the fixed block (602); a sealing plate (604) is provided at one end of the discharge pipe (601) away from the storage box (2); the connecting belt (603) is connected to the sealing plate (604); and a ball valve is provided at the lower end of the discharge pipe (601).

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