CN115627352A - Storage tank applied to extraction volatilization inhibition process - Google Patents

Abstract

The invention discloses a storage tank applied to the process of suppressing extraction and volatilization, which comprises a tank body, and a flow port is arranged on the top of the tank body; a connection unit includes a fixed joint connected with the flow port, and the fixed joint can Disassemble the connected movable joint; the fixed joint is provided with a first through hole that penetrates; the movable joint is provided with a second through hole that penetrates; the exhaust main pipe, the movable joint is connected with the exhaust main pipe through a pipeline; In the extraction and volatilization process, the connection between the tank and the exhaust main pipe is connected by a connecting unit. The connecting unit has an ingenious structure, which can quickly connect the flow port and the branch pipe of the exhaust main pipe, and is easy to disassemble.

Description

A kind of storage tank applied to suppress extraction volatilization process

technical field

The invention relates to the field of storage tanks, in particular to a storage tank used in the process of suppressing extraction volatilization.

Background technique

my country's new energy vehicle industry is developing rapidly. According to the forecast of my country Automotive Technology Research Center, by 2025, the scrap power lithium battery will exceed 750,000 tons, and the market size will exceed 10 billion yuan. At present, my country's power lithium battery recycling industry has begun to take shape. In the separation and purification of cobalt, nickel, manganese, lithium and other metal resources in waste lithium batteries, recycling companies generally use efficient hydrometallurgical extraction processes.

The extraction process uses an organic extractant as a carrier, sulfonated kerosene as a diluent, and realizes the separation and purification of metals through three basic steps of extraction, washing, and stripping in the mixing tank, clarification chamber and the extracted liquid. Both organic extractants and sulfonated kerosene are volatile organic compounds. Volatile organic compounds (VOCs) are important precursors for the formation of secondary pollutants such as fine particulate matter (PM2.5) and ozone (O3), which in turn cause haze, photochemical Atmospheric environmental problems such as smog, volatilization will also cause excessive loss of extractant and sulfonated kerosene; the inorganic acid used in the washing and stripping process will form acid mist due to volatilization, acid mist is corrosive and toxic, and will not only corrode plant equipment , damage the health of employees, and form acid rain to damage the environment.

Therefore, the reliability of the device that suppresses the volatilization of organic and acid mist in the extraction becomes very important, especially as the tank body of the extraction bottom tank area, the pipeline connection between it and the main pipe is particularly important, and it is necessary to ensure that the connection is stable and fast. In the existing technology, flanges and bolts are often used for connection, and the operation is complicated and cumbersome.

Contents of the invention

The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the application to avoid making this section, the specification The abstract and titles are intended to be vague, and such simplifications or omissions should not be used to limit the scope of the invention.

In view of the problems mentioned above and/or in the prior art, the present invention is proposed.

Therefore, the technical problem to be solved by the present invention is that as the tank body of the extraction bottom tank area, the pipeline connection between it and the main pipe is particularly important, and it is necessary to ensure that the connection is stable and fast, while flanges and bolts are often used in the prior art. The connection and operation are complex and cumbersome.

In order to solve the above technical problems, the present invention provides the following technical solutions: a storage tank applied to the process of suppressing extraction and volatilization, including a tank body, and a flow port is arranged on the top of the tank body;

The connection unit includes a fixed joint connected to the flow port, and a movable joint detachably connected to the fixed joint; the fixed joint is provided with a first through hole; the movable joint is provided with a second through hole; A through hole; an exhaust main pipe, and the movable joint is connected with the exhaust main pipe through a pipeline.

As a preferred solution of the storage tank applied to the extraction and volatilization process of the present invention, wherein: the end of the fixed joint connected to the movable joint is provided with a tapered surface, and the outer circumference of the fixed joint is provided with an annular groove, so The end of the second through hole connected to the fixed joint is provided with a circular groove, the inner side of the circular groove is provided with a guide block, and the outer circumference of the fixed joint is provided with an axial guide groove;

One end of the fixed joint is embedded in the circular groove and connected with the movable joint.

As a preferred solution of the storage tank applied to the extraction and volatilization process of the present invention, wherein: the inner side of the circular groove is provided with a radial groove, the groove is provided with a slider, and the slider A first spring is arranged between the bottom of the groove and the two ends of the first spring are respectively fixedly connected with the end of the slider and the bottom of the groove.

As a preferred solution of the storage tank used in the extraction and volatilization suppression process of the present invention, wherein: the first through hole is provided with a through groove penetrating to the annular groove, and a guide block is arranged in the through groove, so One end of the guide block close to the first through hole is provided with a slope;

The radial length of the slope is consistent with the depth of the annular groove, and one end surface of the guide block located in the annular groove is an arc surface.

As a preferred solution of the storage tank applied to the extraction and volatilization process of the present invention, wherein: the side of the through groove is provided with a limit groove, the side of the guide block is provided with a limit block embedded in the limit groove, and the limit A second spring is arranged between the block and the end face of the limiting slot away from the first through hole.

As a preferred solution of the storage tank used in the process of suppressing extraction and volatilization according to the present invention, wherein: a moving cylinder is arranged in the second through hole, and a long groove extending in the axial direction is arranged inside the second through hole , the outer periphery of the moving cylinder is provided with limit pins, and the limit pins are embedded in the long grooves.

As a preferred solution of the storage tank applied to the extraction and volatilization process of the present invention, wherein: the movable joint is provided with an annular groove intersecting with the long groove, and a rotating ring is arranged in the annular groove, A first helical groove is provided inside the rotating ring, and the limiting pin is embedded in the first helical groove.

As a preferred solution of the storage tank used in the process of suppressing extraction and volatilization according to the present invention, a third spring is arranged between the limit pin and the end surface of the annular groove close to the circular groove.

As a preferred solution of the storage tank applied to the extraction and volatilization process of the present invention, wherein: the movable joint is provided with a bar-shaped groove communicating with the annular groove, and the outer circumference of the rotating ring is provided with a second A helical groove, the direction of rotation of the second helical groove is opposite to that of the first helical groove.

As a preferred solution of the storage tank used in the process of suppressing extraction and volatilization according to the present invention, wherein: a separation ring is sleeved on the outside of the movable joint, and a protrusion is provided on the inside of the separation ring, and the protrusion passes through the strip The shaped groove is embedded in the second helical groove, and the moving direction of the separation ring is opposite to that of the moving cylinder.

Beneficial effects of the present invention: in the process of suppressing extraction and volatilization, the connection between the tank body and the main exhaust pipe is connected by a connecting unit. The connecting unit has an ingenious structure, and can quickly connect the flow port and the branch pipe of the main exhaust pipe , and easy to disassemble.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort. in:

Fig. 1 is a schematic structural view of a storage tank used in an extraction and volatilization suppression process described in an embodiment provided by the present invention;

Fig. 2 is a schematic structural view of the connection unit in the storage tank applied to the extraction and volatilization process described in an embodiment provided by the present invention;

Fig. 3 is a structural schematic diagram of a rotating ring in a storage tank applied to the extraction and volatilization process described in an embodiment provided by the present invention;

Fig. 4 is a schematic structural view of the connection unit in the storage tank used in the extraction and volatilization suppression process described in an embodiment provided by the present invention before connection;

Fig. 5 is a schematic structural diagram of the completion of the connection of the connection unit in the storage tank applied to the extraction and volatilization process described in an embodiment provided by the present invention;

Fig. 6 is a schematic structural view of the separation of the connection unit in the storage tank applied to the extraction and volatilization process described in an embodiment provided by the present invention;

Fig. 7 is a system schematic diagram of another embodiment provided by the present invention.

Detailed ways

In order to make the above objects, features and advantages of the present invention more obvious and comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

Secondly, the present invention is described in detail in combination with schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional view showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, and it should not be limited here. The protection scope of the present invention. In addition, the three-dimensional space dimensions of length, width and depth should be included in actual production.

Second, "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

Example 1

Referring to Figures 1-2, this embodiment provides a storage tank applied to the process of suppressing extraction and volatilization, including a tank body 100, the top of which is provided with a flow port 101; the tank body 100 is a sealed storage tank,

The connection unit 200 includes a fixed joint 201 connected to the flow port 101, and a movable joint 202 detachably connected to the fixed joint 201;

The fixed joint 201 is provided with a penetrating first through hole 201a; the movable joint 202 is provided with a penetrating second through hole 202a;

The exhaust main pipe 300, the movable joint 202 is connected with the exhaust main pipe 300 through the pipeline, and the tank body 100 is connected with the two-stage spray tower through the exhaust main pipe 300. The exhaust main pipe 300 is connected with the circulation port 101 on the top of each storage tank d. One end of the exhaust main pipe 300 is a gas main pipe interface, and the gas main pipe interface is connected to the extraction tail gas lye spray tower. The upper part of the tank body 100 is also provided with an interface. The required liquid is pumped in from the outside of the system through the interface.

Wherein, a pump is provided at the bottom of the tank body 100, and the pump is used to transport the liquid to the interface of the mixing tank in the tank area at the bottom of the extraction.

Wherein, the fixed joint 201 and the movable joint 202 are detachably connected, and connect the branch pipe of the main exhaust pipe 300 with the tank body 100 .

Example 2

Referring to Figures 1-6, it is the second embodiment of the present invention, which is based on the previous embodiment, and is different from the previous embodiment in that:

The end of the fixed joint 201 connected to the movable joint 202 is provided with a tapered surface 201b, which is convenient for being inserted into the movable joint 202 .

Wherein, the outer periphery of the fixed joint 201 is provided with an annular groove 201c, and one end of the second through hole 202a connected with the fixed joint 201 is provided with a circular groove 202b, and the fixed joint 201 is inserted into the circular groove 202b during connection; the inner side of the circular groove 202b is provided with a guide block 202c , the outer periphery of the fixed joint 201 is provided with an axial guide groove 201d; that is, when connecting, the guide block 202c needs to be aligned with the guide groove 201d, and the fixed joint 201 and the movable joint 202 can be connected, that is, one end of the fixed joint 201 is embedded in the circular groove 202b Connect with movable joint 202 inside.

Further, a radial groove 202d is arranged inside the circular groove 202b, a slider 203 is arranged in the groove 202d, and a first spring 203a is arranged between the slider 203 and the bottom of the groove 202d; the two sides of the first spring 203a The ends are respectively fixedly connected with the end of the slider 203 and the bottom of the groove 202d. When connecting, the slider 203 crosses the tapered surface 201b and embeds it in the annular groove 201c for clamping. The cavity of the block movement range, the side of the slider 203 is correspondingly provided with a stopper located in the cavity to prevent the slider 203 from falling off.

Further, the first through hole 201a is provided with a through groove 201e penetrating to the annular groove 201c. When the guide block 202c is aligned with the guide groove 201d, the slider 203 is just aligned with the through groove 201e; the through groove 201e is provided with a guide block 204, the end of the guide block 204 close to the first through hole 201a is provided with a slope 204a; that is, when the fixed joint 201 and the movable joint 202 need to be separated, the guide block 204 is operated to push the slider 203 out of the annular groove 201c.

Preferably, the radial length of the inclined surface 204a is consistent with the depth of the annular groove 201c, and one end surface of the guide block 204 located in the annular groove 201c is an arc surface. When the guide block 204 pushes the slider 203 out of the annular groove 201c, the guide block The arc surface of the outer end of the block 204 coincides with the outside of the fixed joint 201 just.

Wherein, the limit groove 201f is provided on the side of the through groove 201e, the limit block 204b embedded in the limit groove 201f is provided on the side of the guide block 204, and the end surface of the limit block 204b and the limit groove 201f away from the first through hole 201a is provided with a The second spring 204c. That is, the limit groove 201f and the limit block 204b limit the movement range of the guide block 204, and the effect of the second spring 204c is to make one end of the slope 204a of the guide block 204 be located in the first through hole 201a without interference, and the other end is not in the first through hole 201a. inside the annular groove 201c.

Further, a moving cylinder 205 is arranged in the second through hole 202a, the moving cylinder 205 is an annular cylinder, a long groove 202e extending in the axial direction is arranged inside the second through hole 202a, and a limit pin 205a is arranged on the outer periphery of the moving cylinder 205 to limit The positioning pin 205a is embedded in the long slot 202e, that is, the moving cylinder 205 can move axially in the second through hole 202a. It should be noted that the axial movable range of the moving cylinder 205 is longer than the thickness of the guide block 204 in the axial direction of the first through hole 201a, that is, the moving cylinder 205 can pass over the through groove 201e where the guide block 204 is located when separated.

The inside of the movable joint 202 is provided with an annular groove 202f intersecting with the long groove 202e. A rotating ring 206 is arranged in the annular groove 202f. The rotating ring 206 can rotate in the annular groove 202f. The inner side of the rotating ring 206 is provided with a first spiral The slot 206a, the limit pin 205a is embedded in the first helical slot 206a, so when the rotating ring 206 rotates, it will drive the moving cylinder 205 to move in the axial direction.

Wherein, a third spring 207 is provided between the limiting pin 205a and the end surface of the annular groove 202f close to the circular groove 202b. During the action of the third spring 207, its elastic force pushes the moving cylinder 205 to be located inside the second through hole 202a. When the joint 201 and the movable joint 202 are fixed, the end surface of the moving cylinder 205 coincides with the side of the inclined surface 204a close to the moving cylinder 205. . Therefore, when the moving cylinder 205 moves into the first through hole 201 a, the moving cylinder 205 will push the inclined surface 204 a so that the guide block 204 pushes the sliding block 203 .

Further, the movable joint 202 is provided with a bar-shaped groove 202g communicating with the annular groove 202f, and the outer circumference of the rotating ring 206 is provided with a second helical groove 206b. on the contrary.

The outside of the movable joint 202 is covered with a separation ring 208, and the inside of the separation ring 208 is provided with a protrusion 208a. The protrusion 208a passes through the strip groove 202g and is embedded in the second spiral groove 206b. The direction is opposite, so when the fixed joint 201 needs to be separated from the movable joint 202, it is only necessary to operate the separation ring 208 to move away from the fixed joint 201, and this action also conforms to the moving track of the movable joint 202 separation. It is not easy to make mistakes. At this time, because the rotation direction of the second helical groove 206b is opposite to that of the first helical groove 206a, the moving cylinder 205 moves along the axial direction and pushes the inclined surface 204a, thereby separating the two.

In this embodiment, the tank body is connected to the main exhaust pipe 300 through the connection unit 200, which is convenient to connect. When in use, the fixed joint 201 and the movable joint 202 can be directly connected. After the series transmission, the fixed joint 201 is separated from the movable joint 202 .

Example 3

Referring to Fig. 7, it is the third embodiment of the present invention, which is based on the previous embodiment, and the difference from the previous embodiment is that this device is applied to the system for suppressing the extraction of organic and acid mist volatilization. The system includes the bottom storage tank area, upper mixing chamber, clarification chamber and multi-chamber grease trap.

Among them, a gas communication exhaust main pipe is set on the top of the extraction bottom tank area, the storage tanks in the extraction bottom storage tank area are set as airtight storage tanks, the gas flow port is opened on the top, and the exhaust main pipe is connected to the gas flow flange on the top of each storage tank. The port is connected through the connection unit 200, and the gas main pipe port is connected to the alkali solution spray tower for the extraction tail gas, and the liquid required in the storage tank is pumped in from the outside of the system through the port 105;

In the tank area at the bottom of the extraction, a pump is used to transport the liquid to the mixing tank interface 402 through the pump 103, and the mixing tank interface 402 enters the mixing tank mixing area through a quick-plug interface, and the mixed liquid is connected to the clarification chamber interface 501 through the interface 401, and the interface 401 The interface 501 is overflow, and gas and liquid can pass through smoothly. The oil-water mixture is stratified in the mixing tank, and the water phase interface 502 is connected to the interface 403 of the next mixing tank or connected to the liquid inlet interface 601 of the multi-chamber grease trap, and the water phase is further separated from oil and water by the port 602 The outflow enters the lower storage tank area and is connected with the storage tank interface 106 to form a closed-loop connection.

The upper mixing chamber of the extraction is sealed by setting a stirring device with a water seal tank cover plate, as shown in Figure 7, the water seals of the mixing chambers at all levels are connected by connecting short pipes, which can maintain the water level in the water seal tank, and the water content in the water seal tank is natural After volatilization, the water can be replenished quickly, and the airtightness and reliability of the gas in the system can be maintained.

The clarification chamber is sealed with a water-sealed cover plate with a circular corridor. The circular corridor is convenient for slag removal and cleaning in the clarification chamber, and it is convenient for the inspection and management of the clarification tank surface. The ring-shaped corridor divides the water seal area into two parts. Observation covers with water seal grooves are respectively installed on the liquid outlets 502 to facilitate sampling and adjustment of the extraction oil phase interface. The water level in the water seal tank can be maintained, and the water in the water seal tank can be replenished quickly after the natural volatilization, so as to maintain the airtight reliability of the gas in the system.

The multi-chamber grease trap forms a U-shaped connection with the liquid outlet 502 of the clarification chamber through the connection port 601. The U-shaped connection can connect the clarification chamber with the gas part of the multi-chamber grease trap, and the liquid flows into the multi-chamber compartment by setting the height difference. In the oil pool, the deep oil-separated liquid flows into the interface 106 of the storage tank through the interface 602, and both gas and liquid can flow; the groove surface of the multi-chamber oil-separated pool is sealed by setting an annular water tank with a corridor.

Set the induced draft fan and the suction port to be evenly distributed to each water seal sampling point and adjustment point to absorb the volatile organic and acid mist diffused into the environment during sampling and adjustment. The environmental waste gas passes through the fan, two-stage lye spray, two-stage After being adsorbed by high-grade activated carbon, the discharge reaches the standard.

Specifically, it is realized through the following process steps:

Connect storage tanks, mixing chambers, clarification chambers, and multi-chamber grease traps through gas and liquid communication pipes, connect the gas parts in each storage tank through the exhaust main pipe, and communicate with the atmosphere through the spray tower;

The storage tank is a closed storage tank with a gas flow flange on the top, the mixing chamber is a mixing tank with a water ring seal, the clarification chamber and the multi-chamber oil separation tank are equipped with an annular corridor with a water seal tank cover, and the oil phase of the clarification chamber , The outlet of the water phase is equipped with an observation cover plate with a water seal tank;

The stirring water seal tank in the mixing chamber is connected through pipelines, the water seal tank in the clarification chamber is connected through pipelines, and the water seal tank in the multi-chamber oil separation tank is connected through pipelines, which is convenient for controlling the liquid level of the water seal;

Set up an environmental ventilation system to collect a small amount of pollutants that escape during the sampling and adjustment process, and treat the waste gas through lye spray and activated carbon adsorption.

It is important to note that the construction and arrangement of the application, shown in the various exemplary embodiments, are illustrative only. Although only a few embodiments have been described in detail in this disclosure, it should be readily apparent to those who review this disclosure that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application. are possible (e.g., variations in dimensions, dimensions, structures, shapes and proportions of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.). For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be inverted or otherwise varied, and the nature or number or positions of discrete elements may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operation and arrangement of the exemplary embodiments without departing from the scope of the invention. Accordingly, the invention is not limited to a particular embodiment, but extends to various modifications still falling within the scope of the appended claims.

Moreover, in order to provide a concise description of exemplary embodiments, not all features of an actual embodiment (i.e., those features not relevant to the best mode presently considered for carrying out the invention, or to practicing the invention feature).

It should be appreciated that during the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort would be complex and time-consuming, but would be a routine matter of design, fabrication, and production without undue experimentation to those of ordinary skill having the benefit of this disclosure .

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation, although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (10)

1. A storage tank applied to the process of suppressing extraction volatilization, characterized in that: comprising, A tank body (100), the top of the tank body (100) is provided with a flow port (101); A connection unit (200), comprising a fixed joint (201) connected to the flow port (101), and a movable joint (202) detachably connected to the fixed joint (201); The fixed joint (201) is provided with a penetrating first through hole (201a); the movable joint (202) is provided with a penetrating second through hole (202a); An exhaust main pipe (300), the movable joint (202) is connected with the exhaust main pipe (300) through a pipeline. 2. The storage tank applied to the process of suppressing extraction and volatilization according to claim 1, characterized in that: the end of the connection between the fixed joint (201) and the movable joint (202) is provided with a tapered surface (201b), so An annular groove (201c) is arranged on the outer periphery of the fixed joint (201), a round groove (202b) is arranged at one end of the second through hole (202a) connected to the fixed joint (201), and a round groove (202b) is arranged inside the round groove (202b). There is a guide block (202c), and the outer circumference of the fixed joint (201) is provided with an axial guide groove (201d); One end of the fixed joint (201) is embedded in the circular groove (202b) and connected with the movable joint (202). 3. The storage tank used in the process of suppressing extraction and volatilization according to claim 2, characterized in that: the inner side of the circular groove (202b) is provided with a radial groove (202d), and the groove (202d) A slide block (203) is arranged inside, and a first spring (203a) is arranged between the slide block (203) and the bottom of the groove (202d); the two ends of the first spring (203a) are connected to the slide block ( 203) the end and the bottom of the groove (202d) are fixedly connected. 4. The storage tank applied to the process of suppressing extraction and volatilization according to claim 3, characterized in that: the first through hole (201a) is provided with a through groove (201e) penetrating to the annular groove (201c), the A guide block (204) is provided in the through groove (201e), and an inclined surface (204a) is provided at one end of the guide block (204) close to the first through hole (201a); The radial length of the inclined surface (204a) is consistent with the depth of the annular groove (201c), and one end surface of the guide block (204) located in the annular groove (201c) is an arc surface. 5. The storage tank used in the process of suppressing extraction and volatilization according to claim 4, characterized in that: the side of the through groove (201e) is provided with a limiting groove (201f), and the side of the guide block (204) is provided with an embedded The limiting block (204b) of the limiting groove (201f), and the second spring (204c) is arranged between the limiting block (204b) and the end surface of the limiting groove (201f) away from the first through hole (201a). 6. The storage tank applied to the process of suppressing extraction and volatilization according to claim 5, characterized in that: a moving cylinder (205) is arranged in the second through hole (202a), and the second through hole (202a) A long slot (202e) extending axially is arranged on the inner side, and a limit pin (205a) is arranged on the outer periphery of the moving cylinder (205), and the limit pin (205a) is embedded in the long slot (202e). 7. The storage tank applied to the process of suppressing extraction and volatilization according to claim 6, characterized in that: the movable joint (202) is provided with an annular groove (202f) intersecting with the long groove (202e), and the A rotating ring (206) is arranged in the annular groove (202f), and a first spiral groove (206a) is arranged inside the rotating ring (206), and the stop pin (205a) is embedded in the first spiral groove ( 206a). 8. The storage tank used in the process of suppressing extraction and volatilization according to claim 7, characterized in that: between the limit pin (205a) and the end face of the annular groove (202f) close to the circular groove (202b), a Third spring (207). 9. The storage tank applied to the process of suppressing extraction and volatilization according to claim 8, characterized in that: the movable joint (202) is provided with a bar-shaped groove (202g) communicating with the annular groove (202f) outside , the outer circumference of the rotating ring (206) is provided with a second helical groove (206b), and the helical direction of the second helical groove (206b) is opposite to that of the first helical groove (206a). 10. The storage tank used in the process of suppressing extraction and volatilization according to claim 9, characterized in that: a separation ring (208) is sleeved on the outside of the movable joint (202), and a separation ring (208) is provided on the inside of the separation ring (208). The protrusion (208a), the protrusion (208a) passes through the bar-shaped groove (202g) and is embedded in the second spiral groove (206b), the moving direction of the separation ring (208) is the same as that of the moving cylinder (205 ) move in the opposite direction.

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