A safety storage device for propylene oxide

Abstract

The application discloses a safe storage device for propylene oxide and relates to the technical field of chemical raw material barrels, which comprises a storage barrel, a material drawing port, a guide pipe, a barrel top plate, the guide pipe is fixedly welded in the interior of the material drawing port, and the interior of the material drawing port is provided with a connecting mechanism for sealingly connecting an external suction pipe with the guide pipe. The connecting mechanism is arranged, so that the external suction pipe can be connected with the connecting head only after sufficient sealing, the first sealing ceramic block is released from the limiting of the limiting block, the first sealing ceramic block moves downward, the second sealing ceramic block needs to be rotated, the flow guide groove is connected with the penetrating groove, the above-mentioned parts are used in cooperation, the suction pipe can be connected with the connecting head only after sealing, the connection can be connected for suction or filling of propylene oxide, and part of propylene oxide can be effectively prevented from leaking out of the connection together with air during the suction or filling process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical raw material barrels, in particular to a safe storage device for propylene oxide. BACKGROUND

[0002] Propylene oxide, also known as propylene oxide or methyl epoxide, is a colorless ether liquid with low boiling point, flammability, chirality and toxicity. Propylene oxide can be stored in a galvanized iron barrel that is dry, clean and well sealed. The galvanized iron barrel greatly facilitates the storage and transportation of chemical raw materials. In the field of chemical raw material production, manufacturers often use galvanized iron barrels to transport the produced raw materials to various end users. Users use automatic suction equipment to pump the raw materials into the tower.

[0003] The existing galvanized iron barrel for storing propylene oxide usually uses a threaded galvanized sealing cover at the filling port. This sealing cover needs to be manually screwed open, then quickly inserted into the suction pipeline and sealed before suction and filling operation. In this process, propylene oxide is inevitably volatilized into the environment. Although the relevant operation procedures require operators to wear protective equipment such as gas masks and protective gloves during operation, in actual operation, because the consumables (such as filter cartridges) in gas masks and protective equipment are consumables, the relevant management is not strict, which leads to the fact that most operators do not wear relevant protective equipment or wear it improperly during operation due to discomfort and low awareness of protection. As a result, the corresponding protection function cannot be achieved, the environment of the plant is polluted by propylene oxide, and long-term inhalation of propylene oxide vapor can cause symptoms such as nausea, vomiting, headache, dizziness and diarrhea, and may cause cancer. Some sealing covers in the prior art are connected to the suction pipe, then the sealing block is lowered to guide, and then this way can cause part of the propylene oxide to leak with air from the connection when the suction pipe is not completely sealed (i.e. the sealing element at the end of the suction pipe is not pressed and does not form a sealing effect), and the propylene oxide is guided by the lower pressure operation. Therefore, in order to improve the safety of propylene oxide sealing suction and filling operation and avoid leakage during propylene oxide suction and filling, a safe storage device for propylene oxide is proposed. SUMMARY

[0004] The purpose of the present application is to solve the problem of inconvenient sealing suction or filling of propylene oxide, and to provide a safe storage device for propylene oxide.

[0005] In order to achieve the above object, the present application provides the following technical scheme: A safe storage device for propylene oxide, comprising a storage barrel, a material extraction port, a guide pipe, and a barrel top plate, the guide pipe is fixedly welded to the inside of the material extraction port, the top end of the guide pipe is in a stepped structure inside the material extraction port, a plurality of through grooves in annular distribution are formed in the outer wall of the guide pipe at the stepped structure, and a connecting mechanism for connecting and sealing the external suction pipe with the guide pipe is arranged in the inside of the material extraction port;

[0006] The connecting mechanism comprises a first sealing ceramic block, a second sealing ceramic block, a connecting head, a guide rod, a guide groove, a limiting block, and an elastic sheet.

[0007] The first sealing ceramic block and the second sealing ceramic block are both slidingly installed on the outer wall of the guide pipe, the second sealing ceramic block is located at the top end of the first sealing ceramic block, a return spring is installed at the bottom end of the first sealing ceramic block in the inside of the material extraction port, a plurality of flow guide grooves are formed in the inner wall of the second sealing ceramic block, the connecting head is fixedly connected to the outer wall of the second sealing ceramic block, and external threads are formed in the outer wall of the connecting head.

[0008] The guide rod is welded to one end of the outer wall of the guide pipe, the guide groove is formed in one end of the inner wall of the connecting head, an installation box is welded to one end of the outer wall of the material extraction port, the elastic sheet is installed on one end of the inner wall of the installation box, and the limiting block is slidingly installed in the inside of the installation box and extends into the inside of the material extraction port.

[0009] As a further scheme of the present application, the vertical section of the limiting block is in an F-shaped structure, one end of the top end of the limiting block is in an inclined surface structure, the lower top end of the limiting block is in close contact with the bottom end of the first sealing ceramic block, and the bottom end of the limiting block is in close contact with the bottom end of the installation box.

[0010] As a further scheme of the present application, the guide groove is in a ┌-shaped structure, one end of the guide rod extends into the inside of the guide groove, and the outer wall of the guide rod is in close contact with the inner wall of the guide groove.

[0011] As a further scheme of the present application, a limiting ring is welded to the top end of the first sealing ceramic block in the inner wall of the material extraction port, and the inner wall of the first sealing ceramic block is in close contact with the upper outer wall of the guide pipe.

[0012] As a further scheme of the present application, limiting grooves are symmetrically formed in the outer wall of the first sealing ceramic block, and convex parts matching the inner walls of the limiting grooves are formed in the inner wall of the material extraction port at the bottom end of both sides.

[0013] As a further embodiment of the present invention: the inner wall of the second sealing ceramic block is tightly fitted to the upper outer wall of the conduit, and a plurality of the through grooves and a plurality of the guide grooves are arranged at equal angles, and the through grooves and the guide grooves are arranged alternately.

[0014] As a further embodiment of the present invention: a pressure-reducing hole is formed inside the top plate of the barrel on one side of the material extraction port, and the top plate of the barrel is fixed to the top of the storage barrel by welding.

[0015] As a further embodiment of the present invention: a bottom plate is welded to the bottom of the storage tank, and a groove is formed inside the bottom plate below the material extraction port.

[0016] As a further embodiment of the present invention: the bottom end of the conduit extends into the groove, and the bottom end of the conduit is provided with a notch.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a connecting mechanism, the limiting block can only remove the limiting block on the first sealing ceramic block after the external suction pipe is fully sealed and connected with the connector. After the first sealing ceramic block moves down, the second sealing ceramic block needs to rotate to make the guide groove and the through groove connect and communicate. Through the cooperation of the above parts, the connection can be opened for suction or filling of propylene oxide after the suction pipe is sealed and connected with the connector. During the suction or filling process, some propylene oxide is effectively prevented from leaking out of the connection along with air. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a cross-sectional view of the storage bucket of the present invention;

[0020] Figure 3 For the present invention Figure 2 Enlarged view of point A in the image;

[0021] Figure 4 This is a cross-sectional view showing the connection between the top plate of the bucket and the conduit of the present invention.

[0022] Figure 5 For the present invention Figure 4 Enlarged view of point B in the image.

[0023] Figure 6 This is a bottom view of the structure of the first sealing ceramic block of the present invention.

[0024] Figure 7 This is a top view of the first sealing ceramic block of the present invention.

[0025] Figure 8The second sealing ceramic block is shown in the structural schematic diagram of the present application.

[0026] In the figure: 1, storage bucket; 2, material extraction port; 3, through groove; 4, connecting mechanism; 401, first sealing ceramic block; 402, second sealing ceramic block; 403, connecting head; 404, guide rod; 405, guide groove; 406, limiting block; 407, elastic sheet; 5, reset spring; 6, mounting box; 7, flow guide groove; 8, limiting groove; 9, limiting ring; 10, guide pipe; 11, bucket top plate; 12, bucket bottom plate; 13, groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0028] Please refer to Figures 1-8 In the embodiments of the present application, a safe storage device for propylene oxide includes a storage bucket 1, a material extraction port 2, a guide pipe 10, and a bucket top plate 11. The guide pipe 10 is fixedly welded inside the material extraction port 2. The top end of the guide pipe 10 is located inside the material extraction port 2 in a stepped structure. A plurality of through grooves 3 in a ring shape are formed in the outer wall of the guide pipe 10 at the stepped structure. The inside of the material extraction port 2 is provided with a connecting mechanism 4 for connecting and sealing the external suction pipe with the guide pipe 10.

[0029] The connecting mechanism 4 includes a first sealing ceramic block 401, a second sealing ceramic block 402, a connecting head 403, a guide rod 404, a guide groove 405, a limiting block 406, and an elastic sheet 407.

[0030] The first sealing ceramic block 401 and the second sealing ceramic block 402 are both slidingly installed on the outer wall of the guide pipe 10. The second sealing ceramic block 402 is located at the top end of the first sealing ceramic block 401. The bottom end of the first sealing ceramic block 401 is installed with a reset spring 5 inside the material extraction port 2. The inner wall of the second sealing ceramic block 402 is shaped with a plurality of flow guide grooves 7. The connecting head 403 is fixedly connected to the outer wall of the second sealing ceramic block 402. The outer wall of the connecting head 403 is shaped with external threads.

[0031] The guide rod 404 is welded to one end of the outer wall of the guide pipe 10. The guide groove 405 is shaped in one end of the inner wall of the connecting head 403. The outer wall of one end of the material extraction port 2 is welded with a mounting box 6. The elastic sheet 407 is installed on one end of the inner wall of the mounting box 6. The limiting block 406 is slidingly installed inside the mounting box 6 and extends into the inside of the material extraction port 2.

[0032] In the embodiment: when the storage bucket 1 is used, in the initial state, the first sealing ceramic block 401 cannot move downward under the limiting action of the limiting block 406, by screwing the external suction pipe and the connecting head 403, at the same time, the outer wall of the suction pipe is in contact with the outer wall of the limiting block 406, so that the limiting block 406 is extruded to shrink into the inside of the mounting box 6, when the suction pipe is connected and fixed with the connecting head 403, and sealed with the suction pipe through the sealing element at the top end of the connecting head 403, the limiting block 406 extruded by the suction pipe moves away from the bottom end of the first sealing ceramic block 401, at this time, the limiting block 406 cancels the limiting of the first sealing ceramic block 401, then the suction pipe moves downward to push the connecting head 403 to move downward, the connecting head 403 drives the second sealing ceramic block 402 to move downward, at the same time, the connecting head 403 pushes the first sealing ceramic block 401 to move downward, the guide groove 405 moves downward along the outer wall of the guide rod 404, the return spring 5 is forced to shrink, the outer wall of the first sealing ceramic block 401 moves below the through groove 3, at this time, the plurality of flow guide grooves 7 are staggered with the plurality of through grooves 3, the second sealing ceramic block 402 keeps sealing the through groove 3, then the connecting head 403 rotates by a certain angle, at the same time, the connecting head 403 drives the second sealing ceramic block 402 to rotate by a certain angle, and the plurality of flow guide grooves 7 are aligned with the plurality of through grooves 3, so that the through groove 3 is communicated with the flow guide groove 7, when the external suction pump sucks the propylene oxide in the storage bucket 1 through the suction pipe, the propylene oxide in the storage bucket 1 enters the suction pipe through the conduit 10, the through groove 3, the flow guide groove 7 and the connecting head 403 in sequence to realize the suction operation.

[0033] Please refer to Figure 5 , the vertical section of the limiting block 406 is in "F" type structure, one end of the top end of the limiting block 406 is in inclined surface structure, the bottom end of the limiting block 406 is fitted with the bottom end of the first sealing ceramic block 401, and the bottom end of the limiting block 406 is fitted with the bottom end of the mounting box 6.

[0034] In the embodiment: by fitting the bottom end of the first sealing ceramic block 401 with the lower top end of the limiting block 406, the limiting block 406 limits the first sealing ceramic block 401, when the external suction pipe and the connecting head 403 are not fully connected and sealed, the downward force of the connecting head 403 on the first sealing ceramic block 401 cannot push the first sealing ceramic block 401 to move downward, so that the first sealing ceramic block 401 keeps sealing the through groove 3 stably, avoiding the leakage of propylene oxide in the storage bucket 1.

[0035] Please refer to Figure 3 、 Figure 5The guide slot 405 is in a "┌" type structure, one end of the guide rod 404 extends into the guide slot 405, and the outer wall of the guide rod 404 is matched with the inner wall of the guide slot 405.

[0036] In the embodiment, at the initial time, the reset spring 5 provides an upward force to the first sealing ceramic block 401, so that the first sealing ceramic block 401 exerts an upward force on the connector 403 and the second sealing ceramic block 402, and the connector 403 is limited in the guide slot 405 by the guide rod 404, so that the connector 403 cannot move away from the outer wall of the conduit 10.

[0037] Please refer to Figure 3 , Figure 5 , the inner wall of the material extraction port 2 is welded with a limiting ring 9 at the top end of the first sealing ceramic block 401, and the inner wall of the first sealing ceramic block 401 is tightly matched with the upper outer wall of the conduit 10.

[0038] In the embodiment, under the elastic force of the reset spring 5, an upward force is exerted on the first sealing ceramic block 401, and the first sealing ceramic block 401 is limited by the limiting ring 9, so that the first sealing ceramic block 401 is sealed to the outer wall of the through groove 3.

[0039] Please refer to Figure 3 , Figure 6 and Figure 7 , the outer wall of the first sealing ceramic block 401 is symmetrically provided with a limiting slot 8 on both sides, the inner wall of the material extraction port 2 is formed with a protruding part at the bottom end on both sides, the inner wall of the second sealing ceramic block 402 is tightly matched with the upper outer wall of the conduit 10, the plurality of through grooves 3 and the plurality of flow guide grooves 7 are arranged at equal angles and staggered.

[0040] In the embodiment, the first sealing ceramic block 401 is kept moving up and down in the vertical direction by the cooperation of the limiting slot 8 and the protruding part, when the first sealing ceramic block 401 moves vertically downward to below the through groove 3, the second sealing ceramic block 402 seals the through groove 3, and after the second sealing ceramic block 402 rotates by a certain angle, the plurality of flow guide grooves 7 are aligned with the plurality of through grooves 3 one by one, so that the conduit 10 is in communication with the connector 403 through the through groove 3 and the flow guide groove 7.

[0041] Please refer to Figure 1 , Figure 2 , the inside of the barrel top plate 11 is formed with a pressure relief hole at one side of the material extraction port 2, the barrel top plate 11 is fixed to the top end of the storage barrel 1 by welding process, the bottom end of the storage barrel 1 is welded with a barrel bottom plate 12, the inside of the barrel bottom plate 12 is formed with a groove 13 below the material extraction port 2, the bottom end of the conduit 10 extends into the groove 13, and the bottom end of the conduit 10 is provided with a notch groove.

[0042] In the embodiment, when the storage barrel 1 is filled or extracted with propylene oxide, the gas pressure circulating device needs to be connected with the pressure reduction hole to keep the gas pressure of the storage barrel 1 filled or extracted with propylene oxide approximately constant and avoid a large amount of gas from evaporating into the environment. By opening the groove 13, the propylene oxide in the storage barrel 1 can be conveniently sucked as clean as possible during the extraction of propylene oxide.

[0043] The above is only a preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes within the technical range disclosed by the present application according to the technical solution and the inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A safe storage device for propylene oxide, comprising a storage tank (1), a discharge port (2), a conduit (10), and a tank top plate (11), characterized in that, The conduit (10) is fixedly welded to the inside of the extraction port (2). The top end of the conduit (10) is located inside the extraction port (2) in a stepped structure. The outer wall of the conduit (10) is provided with several through grooves (3) arranged in a ring at the stepped structure. The inside of the extraction port (2) is provided with a connecting mechanism (4) for sealing the connection between the external suction pipe and the conduit (10). The connecting mechanism (4) includes a first sealing ceramic block (401), a second sealing ceramic block (402), a connector (403), a guide rod (404), a guide groove (405), a limiting block (406), and an elastic sheet (407). The first sealing ceramic block (401) and the second sealing ceramic block (402) are slidably installed on the outer wall of the conduit (10), and the second sealing ceramic block (402) is located at the top of the first sealing ceramic block (401). The inside of the extraction port (2) is equipped with a return spring (5) at the bottom of the first sealing ceramic block (401). The inner wall of the second sealing ceramic block (402) is formed with a plurality of flow guide grooves (7). The connector (403) is fixedly connected to the outer wall of the second sealing ceramic block (402). The outer wall of the connector (403) is formed with external threads. The guide rod (404) is welded to one end of the outer wall of the conduit (10), the guide groove (405) is formed on one end of the inner wall of the connector (403), the outer wall of the extraction port (2) is welded with a mounting box (6), the elastic sheet (407) is installed on one end of the inner wall of the mounting box (6), and the limiting block (406) is slidably installed inside the mounting box (6) and extends into the interior of the extraction port (2). The vertical cross section of the limiting block (406) is in the shape of an "F". One end of the top of the limiting block (406) is in the shape of a slope. The top of the lower part of the limiting block (406) is in contact with the bottom of the first sealing ceramic block (401). The bottom of the limiting block (406) is in contact with the bottom of the mounting box (6). The inner wall of the second sealing ceramic block (402) is tightly fitted to the upper outer wall of the conduit (10). Several through grooves (3) and several guide grooves (7) are arranged at equal angles, and the through grooves (3) and the guide grooves (7) are arranged alternately.

2. The safe storage device for propylene oxide according to claim 1, characterized in that, The guide groove (405) has a "┌" shaped structure. One end of the guide rod (404) extends into the interior of the guide groove (405), and the outer wall of the guide rod (404) matches the inner wall of the guide groove (405).

3. A safe storage device for propylene oxide according to claim 1, characterized in that, The inner wall of the extraction port (2) is welded with a limiting ring (9) at the top of the first sealing ceramic block (401), and the inner wall of the first sealing ceramic block (401) is closely fitted with the upper outer wall of the conduit (10).

4. A safe storage device for propylene oxide according to claim 1, characterized in that, The outer walls of the first sealing ceramic block (401) are symmetrically provided with limiting grooves (8), and the bottom ends of the inner walls of the extraction port (2) are formed with protrusions that match the inner walls of the limiting grooves (8).

5. A safe storage device for propylene oxide according to claim 1, characterized in that, The top plate (11) of the barrel has a pressure-reducing hole formed inside on one side of the material extraction port (2), and the top plate (11) of the barrel is fixed to the top of the storage barrel (1) by welding.

6. A safe storage device for propylene oxide according to claim 1, characterized in that, The bottom of the storage tank (1) is welded with a bottom plate (12), and the inside of the bottom plate (12) is formed with a groove (13) below the extraction port (2).

7. A safe storage device for propylene oxide according to claim 6, characterized in that, The bottom end of the conduit (10) extends into the groove (13), and the bottom end of the conduit (10) is provided with a notch.

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