Silicon tetrachloride waste liquid neutralizing, sealing and circulating absorption device

Abstract

The invention relates to the technical field of waste treatment, and discloses a silicon tetrachloride waste liquid neutralizing, sealing and circulating absorption device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a first reaction tank, the outer wall of the bottom plate is fixedly connected with a waste box, and the top of the bottom plate is fixedly connected with a first shell. A discharging plate is fixedly connected to the outer wall of the first shell, a first partition plate is fixedly connected to the inner wall of the first shell, and a supporting column is fixedly connected to the bottom of the first partition plate. By arranging the rotating assembly, under the cooperation of a pressure detection device on the second reaction tank, after liquid in the tank body reaches a saturated state, gas cannot be absorbed, and the liquid in the second reaction tank cannot be absorbed; the harmful gas is extruded in the reaction tank II instead of being accumulated in the reaction tank II, the air pressure in the reaction tank II is increased along with accumulation of the gas in the reaction tank II, and the rotating assembly is driven by the motor to rotate along with increase of the air pressure in the reaction tank II detected by the pressure detection device, so that the harmful gas is led into other reaction tanks II.

Description

Technical Field

[0001] The invention relates to the technical field of waste treatment, in particular to a silicon tetrachloride waste liquid neutralization sealed circulation absorption device. Background Art

[0002] Silicon tetrachloride is a toxic and hazardous waste produced in large quantities in the production of polysilicon and monocrystalline silicon, the basic materials of the solar photovoltaic industry. The production of 1 kg of polysilicon will produce 10 to 15 kg of silicon tetrachloride. A polysilicon plant with an annual output of 1,000 tons will produce 10,000 to 15,000 tons of silicon tetrachloride per year. The current recycling method is to re-hydrogenate it and reuse it in polysilicon production; this requires the use of high temperature, high pressure, and complex catalytic processes.

[0003] The patent application with application number CN201120524214.0 discloses a sealed circulation absorption device for neutralizing silicon tetrachloride waste liquid, which includes a hydrolysis neutralization reactor and an absorption neutralization reactor interconnected by pipelines and valves; the hydrolysis neutralization reactor includes a hydrolysis neutralization reaction tank, a silicon tetrachloride waste liquid output device, an air compressor, a hydrolysis neutralization reaction reagent output device and a hydrogen chloride storage tank; the absorption neutralization reactor includes at least two absorption neutralization reaction tanks, a vacuum pump and an absorption neutralization reaction reagent output device; by harmlessly treating and comprehensively utilizing harmful substances, waste is turned into treasure, the environment is protected from pollution, and potential is tapped to generate revenue for photovoltaic enterprises.

[0004] When the above equipment is in use, harmful gases will be generated when treating silicon tetrachloride waste liquid. The generated harmful gases will be absorbed by another reaction tank. However, when the liquid in the reaction tank absorbs the harmful gases to saturation, the reaction tank needs to be replaced manually, which is not conducive to the circulation absorption of the equipment. Summary of the invention

[0005] The object of the present invention is to provide a sealed circulation absorption device for neutralizing silicon tetrachloride waste liquid to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a sealed circulation absorption device for neutralizing silicon tetrachloride waste liquid, comprising a bottom plate, a reaction tank 1 is fixedly connected to the top of the bottom plate, a waste box is fixedly connected to the outer wall of the bottom plate, a shell 1 is fixedly connected to the top of the bottom plate, a discharge plate is fixedly connected to the outer wall of the shell 1, a partition 1 is fixedly connected to the inner wall of the shell 1, a support column is fixedly connected to the bottom of the partition 1, the bottom of the support column is fixedly connected to the shell 1, a slide groove is provided at the bottom of the partition 1, a connecting pipe 1 is fixedly connected to the top of the reaction tank 1, a storage tank is fixedly connected to the top of the shell 1, a connecting pipe 2 is fixedly connected to the outer wall of the storage tank, and a reaction mechanism is fixedly connected to the top of the partition 1, and further comprising:

[0007] A control mechanism, the control mechanism includes a connecting column fixedly connected to the top of a partition, the top of the connecting column is fixedly connected to a support plate, the top of the support plate is fixedly connected to a cross shell, the inner wall of the cross shell is fixedly connected to a hollow plate, the inner wall of the cross shell is rotatably connected to a rotating component through a bearing, and the inner wall of the cross shell is movably connected to a movable component.

[0008] According to the above technical solution, the rotating component includes a motor, the bottom of the motor is fixedly connected to the connecting column, the inner wall of the cross shell is rotatably connected to circular plate 2 through a bearing, the bottom of circular plate 2 is fixedly connected to circular plate 1, the outer wall of circular plate 1 is provided with a notch, and the output end of the motor is fixedly connected to circular plate 1.

[0009] According to the above technical solution, an arc groove is opened on the outer wall of the circular plate 2, and the top of the circular plate 2 is fixedly connected with a connecting pipe 3, and the top of the connecting pipe 3 is rotatably connected to the connecting pipe 1 through a bearing.

[0010] According to the above technical solution, the movable component includes a connecting tube four, the outer wall of which is movably connected to the cross shell, the end of the connecting tube four close to the cross shell is fixedly connected to a sliding ring one, the outer wall of the sliding ring one is movably connected to the arc groove, the outer wall of the connecting tube four is fixedly connected to an annular plate, the outer wall of the connecting tube four is sleeved with a spring, one end of the spring is fixedly connected to the annular plate, the end of the spring away from the annular plate is fixedly connected to the hollow plate, the outer wall of the connecting tube four is fixedly connected to a limiting plate one, and by setting the movable component, when the arc groove on the rotating component faces a certain direction, the sliding ring one of the movable component in that direction will be embedded in the notch, ensuring the fit between the connecting tube four and the circular plate one to avoid gas leakage, and at the same time, when the arc groove on the rotating component is not facing that direction, the sliding ring one will be retracted to avoid blocking the rotation of the circular plate two.

[0011] According to the above technical solution, the outer wall of the connecting tube four is fixedly connected with a connecting ring, the outer wall of the connecting ring is fixedly connected with a limiting plate two, the outer wall of the limiting plate two is movably connected to the support plate, the end of the limiting plate two away from the connecting ring is movably connected to the shortage plate, the bottom of the limiting plate two is fixedly connected with a protruding plate, the outer wall of the protruding plate is fixedly connected with a push rod one, the end of the push rod one away from the protruding plate is fixedly connected to the connecting column, when the device embeds the sliding ring one into the arc groove, the limiting plate two at the bottom will also be embedded in the notch, ensuring that the arc groove is aligned with the sliding ring one, and the situation of being unable to connect will not occur.

[0012] According to the above technical scheme, the reaction mechanism includes a reaction tank 2, the bottom of the reaction tank 2 is fixedly connected to the partition 1, and the top of the reaction tank 2 is fixedly connected with a pressure detection device. After the liquid in the tank body reaches a saturated state, the gas will not be absorbed by the liquid, but will accumulate in the reaction tank 2 through the liquid. As the gas accumulates in the reaction tank 2, the pressure detection device detects that the air pressure in the reaction tank 2 increases. When the air pressure in the tank body reaches the threshold of the pressure detection device, the motor will be started to drive the rotating component to rotate, so that the harmful gas can pass into other reaction tanks 2. The top of the reaction tank 2 is fixedly connected with a pressure valve, and the top of the pressure valve is fixedly connected with an arc tube, and one end of the arc tube away from the pressure valve is movably connected to the connecting tube 4. When the movable component is disconnected from the rotating component, as the push rod 1 is pushed out, the protruding plate will apply pressure to the pressure valve, and the pressure valve will convert the pressure received into an electrical signal to control the pressure valve to close, thereby avoiding the free flow of harmful gases. The top of the reaction tank 2 is fixedly connected with a connecting tube 5, and the outer wall of the connecting tube 5 is fixedly connected with a valve, and the top of the connecting tube 5 is fixedly connected with the connecting tube 2.

[0013] According to the above technical solution, the inner wall of the reaction tank 2 is fixedly connected to the partition 2, the inner wall of the partition 2 is movably connected to the switch assembly, the bottom of the pressure valve is fixedly connected to the connecting pipe 6, and the bottom of the connecting pipe 6 is fixedly connected to the annular pipe.

[0014] According to the above technical solution, the switch assembly includes a sliding shell, the outer wall of the sliding shell is movably connected to the partition plate 2, the outer wall of the sliding shell is provided with a circular hole, the bottom of the sliding shell is fixedly connected to a sliding ring 2, the outer wall of the sliding ring 2 is movably connected to the reaction tank 2, the sliding ring 2 is movably connected to the slide groove, the bottom of the sliding shell is fixedly connected to a push rod 2, and the bottom of the push rod 2 is fixedly connected to the reaction tank 2. As the liquid in the reaction tank 2 becomes saturated, the liquid in the tank body needs to be replaced, and the liquid in the tank body is allowed to flow out slowly through the switch assembly to avoid rapid outflow of the liquid, resulting in a vortex in the center of the liquid, so that the harmful gas remaining in the tank body leaks out of the tank body, and at the same time, the liquid in the tank body will not be completely discharged, but a part of it will remain, so that the liquid can become a barrier layer to avoid leakage of harmful gases in the tank body.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0016] 1. The present invention sets a rotating component. With the cooperation of the pressure detection device on the reaction tank 2, after the liquid in the tank reaches the saturated state, the gas will not be absorbed, but will be squeezed in the reaction tank 2. As the gas accumulates in the reaction tank 2, the air pressure in the reaction tank 2 becomes higher. As the pressure detection device detects the increase in the air pressure in the reaction tank 2, the rotating component will be driven by the motor to rotate, allowing the harmful gas to pass into other reaction tanks 2.

[0017] 2. The present invention sets a movable component. When the arc groove on the rotating component faces a certain direction, the sliding ring 1 of the movable component in that direction will be embedded in the notch to ensure the fit between the connecting pipe 4 and the circular plate 1 to avoid gas leakage. At the same time, when the arc groove on the rotating component does not face that direction, the sliding ring 1 will be retracted to avoid blocking the rotation of the circular plate 2.

[0018] 3. The present invention sets a movable component. When the device embeds the sliding ring 1 into the arc groove, the limiting plate 2 at the bottom will also be embedded in the notch to ensure that the arc groove is aligned with the sliding ring 1 and the connection cannot be failed. At the same time, when the movable component is disconnected from the rotating component, as the push rod 1 is pushed out, the protruding plate will apply pressure to the pressure valve, and the pressure valve will convert the pressure into an electrical signal to control the valve to close, thereby avoiding the free flow of harmful gases.

[0019] 4. The present invention sets a switch component. As the liquid in the reaction tank 2 is saturated, the liquid in the tank needs to be replaced. The switch component allows the liquid in the tank to flow out slowly to avoid rapid outflow of the liquid, which causes a vortex in the center of the liquid, causing the harmful gas remaining in the tank to leak out of the tank. At the same time, the liquid in the tank is not completely removed, but a part of it remains. In this way, the liquid can become a barrier layer to avoid leakage of harmful gases in the tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0023] Figure 3 is a bottom cross-sectional view of the overall structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 5is a schematic diagram of the control mechanism of the present invention;

[0026] Figure 6 is a cross-sectional view of a housing of the present invention;

[0027] Figure 7 is a cross-sectional view of the control mechanism of the present invention;

[0028] Figure 8 is a schematic diagram of a rotating assembly of the present invention;

[0029] Fig. 9 is a schematic diagram of the active components of the present invention;

[0030] Fig.10 It is a schematic diagram of the reaction mechanism of the present invention;

[0031] Fig.11 is a cross-sectional view of the reaction mechanism of the present invention;

[0032] Fig.12 is a schematic diagram of a switch assembly of the present invention;

[0033] In the figure: 1, bottom plate; 101, shell 1; 102, waste box; 103, discharge plate; 104, partition 1; 105, support column; 106, slide; 107, connecting pipe 1; 108, storage tank; 109, connecting pipe 2; 1010, reaction tank 1; 2, control mechanism; 201, connecting column; 202, support plate; 203, cross shell; 204, hollow plate; 21, rotating component; 211, motor; 212, circular plate 1; 213, notch; 214, circular plate 2; 215, arc groove; 216, connecting pipe 3; 22, movable component; 22 1. Connecting pipe four; 222. Sliding ring one; 223. Annular plate; 224. Spring; 225. Limiting plate one; 226. Connecting ring; 227. Limiting plate two; 228. Protruding plate; 229. Push rod one; 3. Reaction mechanism; 301. Reaction tank two; 302. Pressure valve; 303. Arc tube; 304. Connecting pipe five; 305. Valve; 306. Pressure detection device; 307. Connecting pipe six; 308. Annular tube; 309. Partition plate two; 31. Switch assembly; 311. Sliding shell; 312. Round hole; 313. Sliding ring two; 314. Push rod two. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Example 1: See Figure 1-Figure 4 The present invention provides a technical solution: a sealed circulation absorption device for neutralizing silicon tetrachloride waste liquid, comprising a bottom plate 1, a reaction tank 1010 is fixedly connected to the top of the bottom plate 1, a waste box 102 is fixedly connected to the outer wall of the bottom plate 1, a shell 101 is fixedly connected to the top of the bottom plate 1, a discharge plate 103 is fixedly connected to the outer wall of the shell 101, a partition 104 is fixedly connected to the inner wall of the shell 101, a support column 105 is fixedly connected to the bottom of the partition 104, and the bottom of the support column 105 is fixedly connected to the shell The first shell 101 is fixedly connected to the reaction mechanism 3, the bottom of the partition 104 is provided with a chute 106, the top of the reaction tank 1010 is fixedly connected to a connecting pipe 107, the top of the shell 101 is fixedly connected to a storage tank 108, when it is necessary to replenish the liquid in the reaction mechanism 3, the liquid is transported to the reaction mechanism 3 through the storage tank 108 and the connecting pipe 109, the outer wall of the storage tank 108 is fixedly connected to the connecting pipe 109, the top of the partition 104 is fixedly connected to the reaction mechanism 3, and also includes:

[0038] The control mechanism 2 includes a connecting column 201 fixedly connected to the top of the partition 104, the top of the connecting column 201 is fixedly connected to a support plate 202, the top of the support plate 202 is fixedly connected to a cross shell 203, the inner wall of the cross shell 203 is fixedly connected to a hollow plate 204, the inner wall of the cross shell 203 is rotatably connected to a rotating component 21 through a bearing, and the inner wall of the cross shell 203 is movably connected to a movable component 22.

[0039] The working principle of this embodiment is: when it is necessary to treat silicon tetrachloride waste liquid, the waste liquid is first sent to a reaction tank 1010, and the harmful gas generated after the reaction is completed will be sent to the control mechanism 2 through a connecting pipe 107. Under the selection of the control mechanism 2, the harmful gas is transported to the reaction mechanism 3 where the internal liquid is saturated, so that the gas is absorbed by the liquid.

[0040] Example 2: Based on Example 1, please refer to Figure 5-Figure 9 The rotating assembly 21 includes a motor 211, the bottom of the motor 211 is fixedly connected to the connecting column 201, the inner wall of the cross housing 203 is rotatably connected to a second circular plate 214 through a bearing, the bottom of the second circular plate 214 is fixedly connected to a first circular plate 212, the outer wall of the first circular plate 212 is provided with a notch 213, and the output end of the motor 211 is fixedly connected to the first circular plate 212. The outer wall of the second circular plate 214 is provided with an arc groove 215, the top of the second circular plate 214 is fixedly connected to a third connecting pipe 216, and the top of the third connecting pipe 216 is rotatably connected to the first connecting pipe 107 through a bearing.

[0041] The movable assembly 22 includes a connecting pipe 221, the outer wall of the connecting pipe 221 is movably connected to the cross housing 203, the end of the connecting pipe 221 close to the cross housing 203 is fixedly connected to the sliding ring 222, the outer wall of the sliding ring 222 is movably connected to the arc groove 215, the outer wall of the connecting pipe 221 is fixedly connected to the annular plate 223, the outer wall of the connecting pipe 221 is sleeved with a spring 224, one end of the spring 224 is fixedly connected to the annular plate 223, and the end of the spring 224 away from the annular plate 223 is fixedly connected to the hollow plate 204, and the connecting pipe The outer wall of the fourth 221 is fixedly connected with a limiting plate 1 225, the outer wall of the connecting tube four 221 is fixedly connected with a connecting ring 226, the outer wall of the connecting ring 226 is fixedly connected with a limiting plate 227, the outer wall of the limiting plate 227 is movably connected to the support plate 202, the end of the limiting plate 227 away from the connecting ring 226 is movably connected to the support plate 202, the bottom of the limiting plate 227 is fixedly connected with a protruding plate 228, the outer wall of the protruding plate 228 is fixedly connected with a push rod 1 229, and the end of the push rod 1 229 away from the protruding plate 228 is fixedly connected to the connecting column 201.

[0042] The working principle of this embodiment is as follows: when it is necessary to adjust the gas delivery direction, first start the push rod 1 229 to drive the limiting plate 227 to move through the protruding plate 228, and the moving limiting plate 227 tube connecting ring 226 drives the connecting tube 4 221 to move outward, and then drives the sliding ring 1 222 to be pulled out of the arc groove 215, and then start the motor 211 to drive the circular plate 1 212 to rotate, and the rotating circular plate 1 212 drives the circular plate 214 to rotate, and then the direction of the arc groove 215 changes. After the rotation is completed, start the push rod 1 229 facing the arc groove 215 upward to allow the sliding ring to be embedded in the arc groove 215.

[0043] Example 3: Based on Example 2, please refer to Figure 10-12The reaction mechanism 3 includes a reaction tank 2 301, the bottom of the reaction tank 2 301 is fixedly connected to the partition 104, the top of the reaction tank 2 301 is fixedly connected with a pressure detection device 306, the top of the reaction tank 2 301 is fixedly connected with a pressure valve 302, the top of the pressure valve 302 is fixedly connected with an arc tube 303, the end of the arc tube 303 away from the pressure valve 302 is movably connected to the connecting pipe 4 221, the top of the reaction tank 2 301 is fixedly connected with a connecting pipe 5 304, the connecting pipe 5 304 A valve 305 is fixedly connected to the outer wall, the top of the connecting pipe five 304 is fixedly connected to the connecting pipe two 109, the inner wall of the reaction tank two 301 is fixedly connected to the partition two 309, the inner wall of the partition two 309 is movably connected to the switch assembly 31, the bottom of the pressure valve 302 is fixedly connected to the connecting pipe six 307, and the bottom of the connecting pipe six 307 is fixedly connected to the annular pipe 308. The harmful gas is evenly discharged into the liquid through the connecting pipe six 307 and the annular pipe 308 to prevent the liquid from absorbing the harmful gas unevenly.

[0044] The switch assembly 31 includes a sliding shell 311, the outer wall of the sliding shell 311 is movably connected to the partition plate 309, a circular hole 312 is opened on the outer wall of the sliding shell 311, a sliding ring 313 is fixedly connected to the bottom of the sliding shell 311, the outer wall of the sliding ring 313 is movably connected to the reaction tank 301, the sliding ring 313 is movably connected to the slide groove 106, and a push rod 314 is fixedly connected to the bottom of the sliding shell 311, and the bottom of the push rod 314 is fixedly connected to the reaction tank 301.

[0045] The working principle of this embodiment is: when the liquid in the reaction tank 2 301 needs to be replaced, the push rod is first started to drive the sliding shell 311 to rise, so that the circular hole 312 will extend from it, allowing the liquid to be discharged from the circular hole 312. When the liquid is almost discharged, the push rod 1 229 contracts to retain a certain amount of liquid to avoid leakage of harmful gases in the tank, and then the valve 305 is started to allow new liquid to be stored in the reaction tank 2 301.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sealed circulation absorption device for neutralizing silicon tetrachloride waste liquid, comprising a bottom plate (1), a reaction tank (1010) being fixedly connected to the top of the bottom plate (1), a waste box (102) being fixedly connected to the outer wall of the bottom plate (1), a housing (101) being fixedly connected to the top of the bottom plate (1), a discharge plate (103) being fixedly connected to the outer wall of the housing (101), a partition (104) being fixedly connected to the inner wall of the housing (101), and a bottom of the partition (104) being fixedly connected to the A support column (105) is provided, the bottom of the support column (105) is fixedly connected to the outer shell (101), a slide groove (106) is provided at the bottom of the partition (104), the top of the reaction tank (1010) is fixedly connected to a connecting pipe (107), the top of the outer shell (101) is fixedly connected to a material storage tank (108), the outer wall of the material storage tank (108) is fixedly connected to a connecting pipe (109), and the top of the partition (104) is fixedly connected to a reaction mechanism (3). It is characterized in that Also includes: A control mechanism (2), the control mechanism (2) comprising a connecting column (201) fixedly connected to the top of a partition (104), the top of the connecting column (201) being fixedly connected to a support plate (202), the top of the support plate (202) being fixedly connected to a cross shell (203), the inner wall of the cross shell (203) being fixedly connected to a hollow plate (204), the inner wall of the cross shell (203) being rotatably connected to a rotating component (21) via a bearing, and the inner wall of the cross shell (203) being movably connected to a movable component (22).

2. The silicon tetrachloride waste liquid neutralization sealed circulation absorption device according to claim 1, Features: The rotating assembly (21) comprises a motor (211), the bottom of the motor (211) is fixedly connected to the connecting column (201), the inner wall of the cross housing (203) is rotatably connected to a second circular plate (214) via a bearing, the bottom of the second circular plate (214) is fixedly connected to a first circular plate (212), a notch (213) is provided on the outer wall of the first circular plate (212), and the output end of the motor (211) is fixedly connected to the first circular plate (212).

3. The silicon tetrachloride waste liquid neutralization sealed circulation absorption device according to claim 2, Features: An arc groove (215) is formed on the outer wall of the second circular plate (214), and a connecting pipe (216) is fixedly connected to the top of the second circular plate (214), and the top of the connecting pipe (216) is rotatably connected to the connecting pipe (107) via a bearing.

4. The silicon tetrachloride waste liquid neutralization sealed circulation absorption device according to claim 3, Features: The movable component (22) comprises a connecting tube four (221), the outer wall of which is movably connected to the cross shell (203), the end of which close to the cross shell (203) is fixedly connected to a sliding ring one (222), the outer wall of which is movably connected to the arc groove (215), the outer wall of which is fixedly connected to an annular plate (223), the outer wall of which is sleeved with a spring (224), one end of which is fixedly connected to the annular plate (223), the end of which is far from the annular plate (223) is fixedly connected to the hollow plate (204), and the outer wall of which is fixedly connected to a limiting plate one (225).

5. The silicon tetrachloride waste liquid neutralization sealed circulation absorption device according to claim 4, Features: The outer wall of the connecting tube four (221) is fixedly connected to a connecting ring (226), the outer wall of the connecting ring (226) is fixedly connected to a limiting plate two (227), the outer wall of the limiting plate two (227) is movably connected to the support plate (202), the end of the limiting plate two (227) away from the connecting ring (226) is movably connected to the shortage plate, the bottom of the limiting plate two (227) is fixedly connected to a protruding plate (228), the outer wall of the protruding plate (228) is fixedly connected to a push rod one (229), and the end of the push rod one (229) away from the protruding plate (228) is fixedly connected to the connecting column (201).

6. The silicon tetrachloride waste liquid neutralization sealed circulation absorption device according to claim 5, Features: The reaction mechanism (3) comprises a second reaction tank (301), the bottom of the second reaction tank (301) is fixedly connected to a partition plate (104), the top of the second reaction tank (301) is fixedly connected to a pressure detection device (306), the top of the second reaction tank (301) is fixedly connected to a pressure valve (302), the top of the pressure valve (302) is fixedly connected to an arc tube (303), one end of the arc tube (303) away from the pressure valve (302) is movably connected to a connecting tube (221), the top of the second reaction tank (301) is fixedly connected to a connecting tube (304), the outer wall of the connecting tube (304) is fixedly connected to a valve (305), and the top of the connecting tube (304) is fixedly connected to the second connecting tube (109).

7. The silicon tetrachloride waste liquid neutralization sealed circulation absorption device according to claim 6, Features: The inner wall of the reaction tank 2 (301) is fixedly connected to the partition 2 (309), the inner wall of the partition 2 (309) is movably connected to the switch assembly (31), the bottom of the pressure valve (302) is fixedly connected to the connecting pipe 6 (307), and the bottom of the connecting pipe 6 (307) is fixedly connected to the annular pipe (308).

8. The silicon tetrachloride waste liquid neutralization sealed circulation absorption device according to claim 7, Features: The switch assembly (31) comprises a sliding shell (311), the outer wall of the sliding shell (311) is movably connected to the second partition (309), the outer wall of the sliding shell (311) is provided with a circular hole (312), the bottom of the sliding shell (311) is fixedly connected to a second sliding ring (313), the outer wall of the second sliding ring (313) is movably connected to the second reaction tank (301), the second sliding ring (313) is movably connected to the sliding groove (106), the bottom of the sliding shell (311) is fixedly connected to a second push rod (314), and the bottom of the second push rod (314) is fixedly connected to the second reaction tank (301).

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