Multistage rectifying column for electronic grade phosphorus oxychloride

Abstract

This utility model discloses an electronic-grade phosphorus oxychloride multi-stage distillation column, including a distillation component. A fixing component is installed on the outer wall of the distillation component. The fixing component includes a bidirectional threaded rod and a pair of clamping blocks. The bidirectional threaded rod controls the pair of clamping blocks to clamp onto the outer wall of the distillation component. A cooling component is installed on one side of the fixing component. The cooling component is fixedly connected to the bottom end face of the pair of clamping blocks. The inner wall of the cooling component is attached to the outer wall of the distillation component. The cooling component includes a water outlet pipe. An adjusting component is installed on the inner wall of the cooling component. The adjusting component rotates on the inner wall of the water outlet pipe and controls the size of the opening of the water outlet pipe. Compared with the prior art, the electronic-grade phosphorus oxychloride multi-stage distillation column of this utility model, by adding a cooling component on the outside of the distillation column, absorbs the heat of the column body, quickly removes the heat of reaction, and prevents the temperature inside the column from rising sharply and causing certain damage to the equipment. At the same time, it greatly improves the purity of phosphorus oxychloride.

Description

Technical Field

[0001] This utility model belongs to the field of distillation column technology, specifically relating to an electronic-grade phosphorus oxychloride multi-stage distillation column. Background Technology

[0002] The electronic-grade phosphorus oxychloride multistage distillation column is a chemical equipment used to produce high-purity electronic-grade phosphorus oxychloride. It achieves the separation and purification of various components in the mixture through a multistage distillation process to meet the stringent purity requirements of the electronics industry for phosphorus oxychloride.

[0003] During the distillation of phosphorus oxychloride, the heat generated by the reaction and the reboiler heating will cause the temperature inside the column to rise significantly. This high-temperature environment will cause thermal stress on the distillation column material. Long-term operation may lead to equipment deformation, weld cracking or seal failure, and will also reduce the purity of phosphorus oxychloride.

[0004] Therefore, to address the aforementioned technical issues, it is necessary to provide an electronic-grade phosphorus oxychloride multistage distillation column.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide an electronic-grade phosphorus oxychloride multistage distillation column, which can solve the problems mentioned in the background art.

[0007] To achieve the above objectives, a specific embodiment of this utility model provides the following technical solution: an electronic-grade phosphorus oxychloride multi-stage distillation column, comprising a distillation assembly, and further comprising: a fixing assembly, the fixing assembly comprising a bidirectional threaded rod and a pair of clamping blocks, the bidirectional threaded rod controlling the pair of clamping blocks to clamp onto the outer wall of the distillation assembly; a cooling assembly, the cooling assembly being fixedly connected to the bottom end face of the pair of clamping blocks, the inner wall of the cooling assembly being attached to the outer wall of the distillation assembly, the cooling assembly comprising a water outlet pipe; and an adjusting assembly, the adjusting assembly rotating on the inner wall of the water outlet pipe, the adjusting assembly controlling the size of the opening gap of the water outlet pipe.

[0008] In one or more embodiments of the present invention, the fixing component includes a support frame, on which a pair of support housings are integrally formed, each of the pair of support housings having a sliding groove on one side wall, and each of the pair of support housings having a rotating hole on one side wall of the sliding groove.

[0009] In one or more embodiments of this utility model, the bidirectional threaded rod is rotatably connected to the inner wall of the support housing located on the slide groove. One end of the bidirectional threaded rod is integrally formed with a knob through the rotating hole. A first rotating groove is provided on the inner wall of the support housing at one end of the bidirectional threaded rod. Bearings are installed on the inner walls of the first rotating groove and the rotating hole. The bearings are fixedly connected to the outer wall of the bidirectional threaded rod.

[0010] In one or more embodiments of this utility model, a pair of sliders are threadedly connected to the bidirectional threaded rod, and each pair of sliders has a first threaded hole on its outer wall that matches the bidirectional threaded rod.

[0011] In one or more embodiments of this utility model, a pair of clamping blocks are integrally formed on the sidewalls of a pair of sliders.

[0012] In one or more embodiments of the present invention, the cooling component includes a pair of water collection tanks, each of which is integrally formed on the bottom end face of the clamping block.

[0013] In one or more embodiments of this utility model, a second threaded hole matching the adjustment component is provided on the outer wall of the water outlet pipe, and a second rotating groove matching the adjustment component is provided on the inner wall of the water outlet pipe.

[0014] In one or more embodiments of this utility model, the water collection bucket is inclined, and the upper and lower end faces of the water collection bucket gradually decrease from the side near the clamping block to both ends.

[0015] In one or more embodiments of the present invention, the adjusting component includes a control block, and a screw rod is fixedly connected to one side wall of the control block in a second threaded groove, the outer wall of the screw rod being threadedly connected to the inner wall of the second threaded groove.

[0016] In one or more embodiments of this utility model, both ends of the screw are integrally formed with limit blocks, and a blockage block is integrally formed on one side wall of the limit block located inside the water outlet pipe. A rotating column is integrally formed on the side wall of the blockage block away from the screw, and the rotating column rotates on the inner wall of the second rotating groove.

[0017] Compared with the prior art, the electronic-grade phosphorus oxychloride multi-stage distillation column of this utility model adds a cooling component to the outside of the distillation column. The cooling component absorbs the heat of the column body, quickly removes the heat of reaction, and prevents the rapid rise in temperature inside the column from causing certain damage to the equipment. At the same time, it greatly improves the purity of phosphorus oxychloride. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an electronic-grade phosphorus oxychloride multistage distillation column in one embodiment of the present invention;

[0020] Figure 2 This is a partial structural diagram of an electronic-grade phosphorus oxychloride multistage distillation column in one embodiment of the present invention. Figure 1 ;

[0021] Figure 3 This is a partial structural diagram of an electronic-grade phosphorus oxychloride multistage distillation column in one embodiment of the present invention. Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the structure of the adjustment component in one embodiment of the present invention;

[0023] Figure 5 This is a partial structural cross-sectional view of an electronic-grade phosphorus oxychloride multistage distillation column in one embodiment of the present invention.

[0024] Explanation of key figure labels:

[0025] 1-Distillation assembly, 101-First distillation column, 1011-Gas valve, 1012-Liquid valve, 102-Second distillation column, 103-Third distillation column, 104-Transport pipeline, 2-Fixing assembly, 201-Support frame, 202-Support housing, 2021-Slide groove, 2022-Rotating hole, 203-Double threaded rod, 204-Knob, 205-Slider, 206-Clamping block, 3-Cooling assembly, 301-Water collection tank, 302-Water outlet pipe, 4-Adjusting assembly, 401-Control block, 402-Screw rod, 4021-Limit block, 403-Blocking block, 4031-Rotating column, 5-Waste liquid collection assembly, 501-Collection chamber, 502-Liquid inlet, 503-Three-way valve. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0027] like Figure 1 As shown, in one embodiment of this utility model, an electronic-grade phosphorus oxychloride multi-stage distillation column includes a distillation assembly 1, which comprises a first distillation column 101, a second distillation column 102, and a third distillation column 103. The three distillation columns are arranged in parallel, which improves both distillation efficiency and significantly increases the purity of the distilled product. Gas valves 1011 are installed on the top surfaces of the first distillation column 101, the second distillation column 102, and the third distillation column 103. Liquid valves 1012 are installed on the side walls of distillation column 2 and the third distillation column 103. Each set of gas valves 1011 and liquid valves 1012 is connected by a transport pipeline 104 to transport phosphorus oxychloride internally. Simultaneously, auxiliary lines are provided between the three distillation columns to optimize the process and ensure that if one distillation column fails, the faulty column can be switched out of the system at any time without affecting normal system operation and ensuring system stability. Fixing components 2 and cooling components 3 are installed on the outside of each distillation column. This facilitates disassembly, installation, and fixing when a distillation column needs maintenance. The cooling components 3 significantly reduce the heat generated by phosphorus oxychloride during the reaction, thereby greatly reducing the damage to the equipment.

[0028] like Figures 1-3As shown, the fixing component 2 includes a bidirectional threaded rod 203 and a pair of clamping blocks 206. The bidirectional threaded rod 203 controls the pair of clamping blocks 206 to clamp onto the outer wall of the distillation component 1. The fixing component 2 includes a support frame 201. A pair of support housings 202 are integrally formed on the upper part of the support frame 201. A sliding groove 2021 is provided on one side wall of each pair of support housings 202. A rotating hole 2022 is provided on one side wall of each pair of support housings 202 located in the sliding groove 2021. The bidirectional threaded rod 203 is rotatably connected to the inner wall of the support housing 202 located in the sliding groove 2021. A knob 204 is integrally formed at one end of the bidirectional threaded rod 203 through the rotating hole 2022. A first rotating groove is provided on the inner wall of the support housing 202 located at one end of the bidirectional threaded rod 203. Bearings are installed on the inner walls of the first rotating groove and the rotating hole 2022. The bearings are fixedly connected to the outer wall of the bidirectional threaded rod 203. A pair of sliders 205 are threadedly connected to the bidirectional threaded rod 203. Each pair of sliders 205 has a first threaded hole on its outer wall that matches the bidirectional threaded rod 203. A pair of clamping blocks 206 are integrally formed on the side walls of the pair of sliders 205. During installation, the bidirectional threaded rod 203 is rotated in the slide groove 2021 by rotating the knob 204. This rotation of the bidirectional threaded rod 203 drives the pair of sliders 205 to move relative to each other, thereby controlling the clamping blocks 206 to clamp the outer wall of the distillation column. This method is suitable for distillation columns of different sizes and greatly increases the stability of the distillation column.

[0029] like Figure 1 and Figure 3 As shown, a cooling component 3 is integrally formed on the bottom end face of the clamping block 206. The cooling component 3 is fixedly connected to the bottom end face of the pair of clamping blocks 206. The inner wall of the cooling component 3 is attached to the outer wall of the distillation component 1. The cooling component 3 includes a water outlet pipe 302 and a pair of water collection tanks 301. The pair of water collection tanks 301 are integrally formed on the bottom end face of the clamping block 206. The water collection tanks 301 are all inclined. The upper and lower end faces of the water collection tanks 301 gradually decrease from the side near the clamping block 206 to both ends. The inclined top end face of the water collection tank 301 increases the size of the opening of the water collection tank 301 during rainfall, increasing the area for rainwater collection. When manual water addition is required, the height of one side of the water collection tank 301 is lowered, making it more convenient for staff to add water to the inside of the water collection tank 301. Meanwhile, the bottom end of the water collection tank 301 is inclined, which facilitates the cleaning of the internal water resources by the staff. The water resources inside the water collection tank 301 are discharged from the water outlet pipe 302, which increases the turnover of water resources and avoids the long-term accumulation of water at the bottom of the water collection tank 301, which can mix with dust and cause blockages, thus causing trouble for subsequent cleaning work.

[0030] like Figures 3-5As shown, an adjusting component 4 is rotatably connected to the inner wall of the water outlet pipe 302. A second threaded hole matching the adjusting component 4 is opened on the outer wall of the water outlet pipe 302, and a second rotating groove matching the adjusting component 4 is opened on the inner wall of the water outlet pipe 302. The adjusting component 4 includes a control block 401. A screw rod 402 is fixedly connected to one side wall of the control block 401 within the second threaded groove. The outer wall of the screw rod 402 is threaded to the inner wall of the second threaded groove. Limiting blocks 4021 are integrally formed at both ends of the screw rod 402. A pair of limiting blocks 4021 are respectively attached to the inner and outer walls of the water outlet pipe 302. A blocking block 403 is integrally formed on one side wall of the limiting block 4021 located inside the water outlet pipe 302. A rotating column 4031 is integrally formed on the side wall of the blocking block 403 away from the screw rod 402. The rotating column 4031 rotates on the inner wall of the second rotating groove. The outer wall of the blocking block 403 matches the inner wall of the water outlet pipe 302. The adjustment component 4 is adjusted by hand. The rotating control block 401 drives the blocking block 403 to rotate on the inner wall of the water outlet pipe 302, thereby adjusting the size of the opening of the water outlet pipe 302. This allows the water inside the water collection tank 301 to automatically drip to the outside of the water collection tank 301. At the same time, the speed of water flow inside the water collection tank 301 is precisely controlled. When the external temperature is high, the temperature of the water inside the water collection tank 301 will rise rapidly. If the water is not replaced for a long time, it will affect the cooling of the distillation column. The staff can adjust the rate of water loss according to the changes in external temperature and the frequency of water replacement. The water that automatically drips from the inside of the water collection tank 301 effectively reduces the temperature of the external environment of the distillation column. There is no need for the staff to drain the water separately, thereby reducing the workload of the staff.

[0031] like Figure 1 As shown, a waste liquid collection assembly 5 is fixedly connected to the bottom side wall of the distillation assembly 1. The waste liquid collection assembly 5 includes a collection chamber 501. An inlet 502 is fixedly connected to the top end face of the collection chamber 501. The inlet 502 is connected to the bottom of the second distillation column 102 and the third distillation column 103. A three-way valve 503 is installed on the outer wall of the inlet 502. When the second distillation column 102 and the third distillation column 103 need maintenance, the three-way valve 503 is opened to lead the phosphorus oxychloride inside the distillation column that needs maintenance into the collection chamber 501. Finally, it is transported to the intact distillation column through a pipe located on one side of the collection chamber 501, thus avoiding waste and injury to maintenance personnel.

[0032] In use, by adding a cooling component 3 to the outside of the distillation column, the cooling component 3 absorbs the heat from the column body and the external environment, quickly removes the heat of reaction, prevents the temperature inside the column from rising sharply and causing certain damage to the equipment, and at the same time greatly improves the purity of phosphorus oxychloride.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electronic-grade phosphorus oxychloride multi-stage distillation column, comprising distillation components, characterized in that, Also includes: A fixing assembly, the fixing assembly including a bidirectional threaded rod and a pair of clamping blocks, the bidirectional threaded rod controlling the pair of clamping blocks to be clamped on the outer wall of the distillation assembly; A cooling component is fixedly connected to the bottom end face of a pair of clamping blocks, the inner wall of the cooling component is attached to the outer wall of the distillation component, and the cooling component includes a water outlet pipe. An adjusting component, which rotates on the inner wall of the water outlet pipe, controls the size of the opening gap of the water outlet pipe.

2. The electronic-grade phosphorus oxychloride multi-stage distillation column according to claim 1, characterized in that, The fixing component includes a support frame, on which a pair of support housings are integrally formed. Each pair of support housings has a sliding groove on one side wall and a rotating hole on one side wall of the sliding groove.

3. The electronic-grade phosphorus oxychloride multi-stage distillation column according to claim 2, characterized in that, The bidirectional threaded rod is rotatably connected to the inner wall of the support housing located in the slide groove. One end of the bidirectional threaded rod is integrally formed with a knob through the rotating hole. A first rotating groove is provided on the inner wall of the support housing at one end of the bidirectional threaded rod. Bearings are installed on the inner walls of the first rotating groove and the rotating hole. The bearings are fixedly connected to the outer wall of the bidirectional threaded rod.

4. The electronic-grade phosphorus oxychloride multi-stage distillation column according to claim 3, characterized in that, The bidirectional threaded rod is threaded with a pair of sliders, and each pair of sliders has a first threaded hole on its outer wall that matches the bidirectional threaded rod.

5. The electronic-grade phosphorus oxychloride multi-stage distillation column according to claim 4, characterized in that, The pair of clamping blocks are integrally formed on the sidewalls of the pair of sliders.

6. The electronic-grade phosphorus oxychloride multi-stage distillation column according to claim 1, characterized in that, The cooling component includes a pair of water collection tanks, each of which is integrally formed on the bottom end face of the clamping block.

7. The electronic-grade phosphorus oxychloride multi-stage distillation column according to claim 1, characterized in that, The outer wall of the water outlet pipe is provided with a second threaded hole that matches the adjustment component, and the inner wall of the water outlet pipe is provided with a second rotating groove that matches the adjustment component.

8. The electronic-grade phosphorus oxychloride multi-stage distillation column according to claim 6, characterized in that, All the water collection buckets are set at an angle, and the upper and lower end faces of the water collection buckets gradually decrease from the side near the clamping block to both ends.

9. The electronic-grade phosphorus oxychloride multi-stage distillation column according to claim 7, characterized in that, The adjustment assembly includes a control block, and a screw rod is fixedly connected to one side wall of the control block in a second threaded groove. The outer wall of the screw rod is threaded to the inner wall of the second threaded groove.

10. The electronic-grade phosphorus oxychloride multi-stage distillation column according to claim 9, characterized in that, Both ends of the screw are integrally formed with limit blocks. A blockage block is integrally formed on one side wall of the limit block inside the water outlet pipe. A rotating column is integrally formed on the side wall of the blockage block away from the screw. The rotating column rotates on the inner wall of the second rotating groove.

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