Silicon tetrafluoride tail gas treatment device

Abstract

The utility model provides a silicon tetrafluoride tail gas treatment device which comprises a spray tower main body, a plurality of rectangular through holes are formed in the surface of the spray tower main body from top to bottom, a plurality of movable assemblies are respectively arranged in the spray tower main body and are positioned on the opposite sides of the rectangular through holes, each movable assembly comprises a fixed rod, and the fixed rods are fixed on the spray tower main body. The surface of the fixed rod is sleeved with a movable sleeve, the bottom of the movable sleeve is connected with an extension rod, the spraying assembly is arranged below the extension rod, and the sealing assembly is arranged on the surface of the spraying tower body and located on the side opposite to the rectangular through groove. According to the silicon tetrafluoride tail gas treatment device provided by the utility model, the fixed rod is arranged in the spray tower main body, and the movable sleeve with the extension rod is matched with the spray assembly and the sealing assembly for use, so that when the interior of the spray assembly is blocked by impurities after the spray assembly is used for a long time, the spray assembly can be sealed; and the spraying assembly can be pulled to the outside of the spraying tower main body for replacement and careful cleaning.

Description

Technical Field

[0001] The utility model relates to the field of tail gas treatment, in particular to a silicon tetrafluoride tail gas treatment device. Background Art

[0002] During the production and distillation of high-purity silicon tetrafluoride, tail gas is regularly discharged. The main component of the tail gas is silicon tetrafluoride, which is hydrolyzed in aqueous solution to form fluorosilicic acid accompanied by a certain amount of silicon dioxide precipitation and a small amount of viscous mixed substances.

[0003] Conventional spray towers include spray heads, fillers, filters, etc. After being absorbed by water, silicon tetrafluoride will adhere to the spray heads, fillers, and filters of the exhaust gas treatment tower in large quantities, affecting the service life and treatment effect of the spray tower. It requires long-term and frequent shutdowns for inspection and cleaning. At the same time, the waste liquid from silicon tetrafluoride exhaust gas treatment is also treated as waste, which wastes resources and is not conducive to energy saving.

[0004] However, in the prior art, a patent application with publication number CN217662516U is provided with a window on the spray tower to facilitate observation of the spray tower condition. Meanwhile, a blocked spray head can be cleaned in time through the window, which greatly improves convenience. However, currently, in order to prevent the spray head from being blocked, a tool is used to wipe and clean it. However, after long-term use, impurities will enter the interior of the spray head, and the impurities inside cannot be removed by tools.

[0005] Therefore, it is necessary to provide a silicon tetrafluoride tail gas treatment device to solve the above technical problems. Utility Model Content

[0006] The utility model provides a silicon tetrafluoride tail gas treatment device, which solves the problem that impurities enter the interior of the spray head after long-term use and cannot be removed by the tool in order to prevent the spray head from being blocked by wiping and cleaning.

[0007] In order to solve the above technical problems, the utility model provides a silicon tetrafluoride tail gas treatment device, comprising:

[0008] A spray tower body, wherein a plurality of rectangular through holes are formed on the surface of the spray tower body from top to bottom;

[0009] A plurality of movable components, each of which is disposed inside the spray tower body and on a side opposite to the plurality of rectangular through holes, the movable component comprising a fixed rod, a movable sleeve is sleeved on the surface of the fixed rod, and an extension rod is connected to the bottom of the movable rod;

[0010] A spray assembly, the spray assembly is arranged below the extension rod;

[0011] A sealing component is arranged on the surface of the spray tower body and is located on a side opposite to the rectangular through groove.

[0012] Preferably, a positioning block is provided inside the movable sleeve, and a positioning groove matched with the positioning block is provided on the surface of the fixing rod.

[0013] Preferably, one end of the fixing rod is connected to a stopper.

[0014] Preferably, the spray assembly comprises a fixing seat, one side of the fixing seat is connected to a spray pipe, and a plurality of spray heads are arranged on the surface of the spray pipe.

[0015] Preferably, the sealing assembly comprises a sealing cover, a sealing plate is provided on one side of the sealing cover, and a sealing gasket is bonded to the surface of the sealing plate.

[0016] Preferably, a fixing block is connected between the sealing cover and the sealing plate, and a plurality of the fixing blocks are provided with connecting bolts inside.

[0017] Preferably, a disassembly assembly is provided between the fixing seat and the spray pipe, and the disassembly assembly includes a threaded connection block, a limit block is sleeved on the surface of the threaded connection block, and a threaded sleeve is threadedly connected on the surface of the threaded connection block and on the side opposite to the limit block.

[0018] Compared with the related art, the silicon tetrafluoride tail gas treatment device provided by the utility model has the following beneficial effects:

[0019] The utility model provides a silicon tetrafluoride tail gas treatment device, in which a fixed rod and a movable sleeve with an extension rod are arranged inside a spray tower body for use with a spray component and a sealing component; when the spray component is clogged with impurities after long-term use, the spray component can be pulled outside the spray tower body for replacement and detailed cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a first embodiment of a silicon tetrafluoride tail gas treatment device provided by the utility model;

[0021] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown;

[0022] Figure 3 for Figure 2 An enlarged schematic diagram of part B is shown;

[0023] Figure 4 for Figure 1 A schematic diagram of the overall three-dimensional structure of the device shown;

[0024] Figure 5 for Figure 4 An enlarged schematic diagram of part C is shown;

[0025] Figure 6 This is a structural schematic diagram of a second embodiment of a silicon tetrafluoride tail gas treatment device provided by the utility model.

[0026] Numbers in the figure: 1. spray tower body, 2. rectangular through hole, 3. movable component, 31. fixed rod, 32. movable sleeve, 33. extension rod, 34. positioning block, 35. positioning groove, 4. spray component, 41. fixed seat, 42. spray pipe, 43. spray head, 5. block, 6. sealing component, 61. sealing cover, 62. sealing plate, 63. sealing gasket, 64. fixed block, 65. connecting bolt, 7. disassembly component, 71. threaded connection block, 72. limit block, 73. threaded sleeve. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0028] First embodiment

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic structural diagram of a first embodiment of a silicon tetrafluoride tail gas treatment device provided by the utility model; Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown; Figure 3 for Figure 3 An enlarged schematic diagram of part B is shown; Figure 4 for Figure 1 A schematic diagram of the overall three-dimensional structure of the device shown; Figure 5 for Figure 4 The enlarged schematic diagram of part C is shown. A silicon tetrafluoride tail gas treatment device comprises:

[0030] A spray tower body 1, wherein a plurality of rectangular through holes 2 are formed on the surface of the spray tower body 1 from top to bottom;

[0031] A plurality of movable components 3, each of which is disposed inside the spray tower body 1 and on a side opposite to the plurality of rectangular through holes 2, and the movable component 3 comprises a fixed rod 31, a movable sleeve 32 is sleeved on the surface of the fixed rod 31, and an extension rod 33 is connected to the bottom of the movable sleeve 32;

[0032] A spray assembly 4, wherein the spray assembly 4 is disposed below the extension rod 33;

[0033] The sealing component 6 is arranged on the surface of the spray tower body 1 and is located on a side opposite to the rectangular through groove 2 .

[0034] The fixed rod 31 is connected to one side of the inner wall of the spray tower body 1 , and the use of the movable sleeve 32 and the extension rod 33 can pull the entire spray assembly 4 to the outside of the spray tower body 1 for operation.

[0035] A positioning block 34 is disposed inside the movable sleeve 32 , and a positioning groove 35 matched with the positioning block 34 is formed on the surface of the fixing rod 31 .

[0036] One end of the fixing rod 31 is connected to a stopper 5 .

[0037] The use of the positioning block 34 and the positioning groove 35 can play a role in limiting the position of the movable sleeve 32 when it moves on the surface of the fixed rod 31 .

[0038] The spray assembly 4 includes a fixing seat 41 , a spray pipe 42 is connected to one side of the fixing seat 41 , and a plurality of spray heads 43 are arranged on the surface of the spray pipe 42 .

[0039] The fixing seat 41 is connected to one end of the fixing rod 31 , and the pipe connected to one end of the plurality of spray pipes 42 is a hose, and the hose has a sufficient length.

[0040] The sealing assembly 6 comprises a sealing cover 61 , a sealing plate 62 is disposed on one side of the sealing cover 61 , and a sealing gasket 63 is bonded to the surface of the sealing plate 62 .

[0041] The sealing cover 61 is installed inside the rectangular through hole 2 .

[0042] A fixing block 64 is connected between the sealing cover 61 and the sealing plate 62 , and a plurality of connecting bolts 65 are disposed inside the fixing blocks 64 .

[0043] The working principle of a silicon tetrafluoride tail gas treatment device provided by the utility model is as follows:

[0044] During use, when the multiple nozzles 43 on the spray pipe 42 are to be carefully cleaned or replaced, first remove the connecting bolt 65 between the sealing plate 62 and the sealing cover 61. After the connecting bolt 65 is removed, separate the sealing plate 62 with the sealing gasket 63 from the sealing cover 61. After the sealing plate 62 with the sealing gasket 63 is separated from the sealing cover 61, pull the fixed seat 41 to drive the spray pipe 42 with the multiple nozzles 43 through the rectangular through hole 2 under the action of the extension rod 33 and the movable sleeve 32 to move to the outside of the spray tower body 1 for operation.

[0045] Compared with the related art, the silicon tetrafluoride tail gas treatment device provided by the utility model has the following beneficial effects:

[0046] The utility model provides a silicon tetrafluoride tail gas treatment device. A fixed rod 31 and a movable sleeve 32 with an extension rod 33 are arranged inside a spray tower body 1 for use with a spray component 4 and a sealing component 6. When impurities clog the spray component 4 after long-term use, the spray component 4 can be pulled outside the spray tower body 1 for replacement and detailed cleaning.

[0047] Second embodiment

[0048] Please refer to Figure 6 Based on the silicon tetrafluoride tail gas treatment device provided in the first embodiment of the present application, the second embodiment of the present application provides another silicon tetrafluoride tail gas treatment device. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0049] Specifically, the difference of the silicon tetrafluoride exhaust gas treatment device provided in the second embodiment of the present application is that, in a silicon tetrafluoride exhaust gas treatment device, a disassembly assembly 7 is arranged between the fixed seat 41 and the spray pipe 42, and the disassembly assembly 7 includes a threaded connection block 71, and a limit block 72 is sleeved on the surface of the threaded connection block 71, and a threaded sleeve 73 is threadedly connected on the surface of the threaded connection block 71 and on the side opposite to the limit block 72.

[0050] A through hole matched with the threaded connection block 71 is provided inside the fixing seat 41 .

[0051] The working principle of a silicon tetrafluoride tail gas treatment device provided by the utility model is as follows:

[0052] During use, when disassembling the spray pipe 42 and the fixing seat 41, first remove the limit block 72 and the threaded sleeve 73 on the threaded connection block 71. After the limit block 72 and the threaded sleeve 73 on the threaded connection block 71 are removed, the spray pipe 42 and the fixing seat 41 can be disassembled.

[0053] Compared with the related art, the silicon tetrafluoride tail gas treatment device provided by the utility model has the following beneficial effects:

[0054] The utility model provides a silicon tetrafluoride tail gas treatment device. A disassembly component 7 is arranged between a fixing seat 41 and a spray pipe 42 so that the spray pipe 42 can be disassembled when being replaced.

[0055] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A silicon tetrafluoride tail gas treatment device, characterized in that: include: A spray tower body, wherein a plurality of rectangular through holes are formed on the surface of the spray tower body from top to bottom; A plurality of movable components, each of which is disposed inside the spray tower body and on a side opposite to the plurality of rectangular through holes, the movable component comprising a fixed rod, a movable sleeve is sleeved on the surface of the fixed rod, and an extension rod is connected to the bottom of the movable rod; A spray assembly, the spray assembly is arranged below the extension rod; A sealing component is arranged on the surface of the spray tower body and is located on a side opposite to the rectangular through hole.

2. The silicon tetrafluoride tail gas treatment device according to claim 1, characterized in that: A positioning block is arranged inside the movable sleeve, and a positioning groove matched with the positioning block is opened on the surface of the fixing rod.

3. The silicon tetrafluoride tail gas treatment device according to claim 1, characterized in that: One end of the fixing rod is connected with a stopper.

4. The silicon tetrafluoride tail gas treatment device according to claim 1, characterized in that: The spray assembly comprises a fixing seat, one side of the fixing seat is connected with a spray pipe, and a plurality of spray heads are arranged on the surface of the spray pipe.

5. The silicon tetrafluoride tail gas treatment device according to claim 1, characterized in that: The sealing assembly comprises a sealing cover, a sealing plate is arranged on one side of the sealing cover, and a sealing gasket is bonded to the surface of the sealing plate.

6. The silicon tetrafluoride tail gas treatment device according to claim 5, characterized in that: A fixing block is connected between the sealing cover and the sealing plate, and a plurality of connecting bolts are arranged inside the fixing blocks.

7. The silicon tetrafluoride tail gas treatment device according to claim 4, characterized in that: A disassembly assembly is arranged between the fixing seat and the spray pipe, and the disassembly assembly includes a threaded connection block, a limit block is sleeved on the surface of the threaded connection block, and a threaded sleeve is threadedly connected on the surface of the threaded connection block and on a side opposite to the limit block.

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