Device for cooling trichlorosilane wet dust removal washing liquid

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By designing a device including a treatment cylinder, jacket and pipe-stroke tube, efficient cooling of trichlorosilicon wet dust removal washing liquid is achieved, solving the problems of insufficient cooling and blockage in the prior art, significantly reducing losses and Improves cooling efficiency.

CN222481252UActive Publication Date: 2025-02-14江西晨光新材料股份有限公司 +1

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Patent Information

Application Number: CN202323425499.4
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2023-12-15
Publication Date: 2025-02-14
Estimated Expiration: 2033-12-15

AI Technical Summary

Technical Problem

The existing tube heat exchangers are prone to clogging when cooling the wet dust removal washing liquid of trichlorosilane, and the pipe path of the condenser is too small, resulting in the inability to completely cool the wet dust removal washing liquid of trichlorosilane, causing losses.

Method used

A device including a treatment cylinder, jacket and pipe-spread tube is designed to circulate cooling water through the pipe-spread circulating water outlet, pipe-spread circulating water inlet and pipe-spread tube, and simultaneously circulate water outlet and jacket through the jacket. The water inlet is circulated externally and is cooled from the inside and outside at the same time, increasing the heat exchange area of the cooling and passing through the material to avoid clogging of fine silicon particles.

Benefits of technology

It effectively reduces the loss of trichlorosilane wet dust removal washing liquid, increases the heat exchange area of cooling, and avoids the problem of pipe passage blockage. At the same time, the cleaning device avoids the residual trichlorosilane affecting the cooling effect.

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Abstract

The utility model discloses a device for cooling trichlorosilane wet-type dust removal washing liquid, which relates to the technical field of trichlorosilane wet-type dust removal washing liquid and comprises a processing barrel, a material inlet is arranged at the top of the processing barrel, a slag discharge port is arranged at the bottom of the processing barrel, and a jacket is sleeved on the outer wall of the peripheral side of the processing barrel. According to the utility model, cooling water is internally circulated through the tube pass circulating water outlet, the tube pass circulating water inlet and the tube pass tube, and is externally circulated through the jacket, the jacket circulating water outlet and the jacket circulating water inlet, so that cooling is simultaneously carried out from the inside and the outside, and the cooling heat exchange area is increased; the loss of trichlorosilane wet-type dust removal washing liquid is effectively reduced, meanwhile, materials pass through a shell pass instead of a fine tube pass, the middle of the shell pass is vacated, at the moment, fine silicon particles do not block the tube pass, and the blocking problem is reduced.

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Description

Technical Field

[0001] The utility model relates to the technical field of trichlorosilane wet dust removal washing liquid, in particular to a device for cooling trichlorosilane wet dust removal washing liquid. Background Art

[0002] Since fine silicon particles are brought out during the production of trichlorosilane, the existing shell-and-tube heat exchanger is very easy to block the tube side when cooling the trichlorosilane wet dust removal washing liquid; and the reaction temperature of trichlorosilane is about 350°C, and the boiling point of its wet dust removal washing liquid is relatively low. When the existing shell-and-tube condenser is used for cooling, it is difficult to completely cool down the trichlorosilane wet dust removal washing liquid due to the small tube side, resulting in the loss of the trichlorosilane wet dust removal washing liquid. In view of the shortcomings of the prior art, the utility model discloses a device for cooling the trichlorosilane wet dust removal washing liquid to solve the above problems. Utility Model Content

[0003] The purpose of the present application is to provide a device for cooling trichlorosilane wet dust removal washing liquid to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: A device for cooling trichlorosilane wet dust removal washing liquid, comprising a treatment cylinder, a material inlet is provided at the top of the treatment cylinder, a slag discharge port is provided at the bottom of the treatment cylinder, a jacket is provided on the peripheral outer wall of the treatment cylinder, a jacket circulating water outlet and a jacket circulating water inlet are installed on the side of the treatment cylinder, a tube bundle is provided on the jacket, the jacket circulating water outlet and the jacket circulating water inlet are connected, a tube-side tube is provided in the treatment cylinder, a tube-side circulating water outlet and a tube-side circulating water inlet are respectively installed on the sides of the treatment cylinder away from each other, the tube-side circulating water outlet and the tube-side circulating water inlet are connected through the tube-side tube, a material outlet is installed on the peripheral outer wall of the treatment cylinder, and a thermometer is provided on the peripheral outer wall of the treatment cylinder.

[0005] Preferably, four supporting columns are installed at the bottom of the processing cylinder, and a movable plate is commonly installed at the bottom of the four supporting columns. A circular block is installed on the inner wall of the peripheral side of the processing cylinder, and a screw rod is rotatably installed relative to the inner wall of the circular block. A driving motor is installed on the top of the movable plate, and the bottom end of the screw rod extends to the outside of the processing cylinder and is installed on the output shaft of the driving motor. A mounting block is threadedly sleeved on the screw rod, and a ring-shaped scraper is detachably installed on the side of the mounting block.

[0006] Preferably, two movable holes are provided on the side of the mounting block, and fixing bolts are movably installed in the two movable holes. Two fixing threaded holes are provided on the inner wall of the circumference of the annular scraper, and the ends of the two fixing bolts are respectively threadedly installed in the two fixing threaded holes.

[0007] Preferably, a guide rod is installed on the relative inner wall of the circular block, a guide hole is opened on the top of the mounting block, and the guide rod passes through the guide hole.

[0008] Preferably, four universal wheels are installed at the bottom of the movable plate, and an anti-slip mechanism is provided on the movable plate.

[0009] Preferably, the anti-skid mechanism comprises two anti-skid threaded holes opened at the top of the movable plate, threaded rods are threadedly installed in the two anti-skid threaded holes, and anti-skid plates and knobs are respectively installed at the bottom and top of the two threaded rods.

[0010] Preferably, the knob is provided with anti-slip grooves.

[0011] In summary, the technical effects and advantages of the utility model are:

[0012] 1. In the utility model, the cooling water is internally circulated through the tube-side circulating water outlet, the tube-side circulating water inlet and the tube-side pipe, and the cooling water is externally circulated through the jacket, the jacket circulating water outlet and the jacket circulating water inlet, thereby cooling from both the inside and the outside at the same time, thereby increasing the cooling heat exchange area, effectively reducing the loss of trichlorosilane wet dust removal washing liquid, and at the same time, the material does not pass through the fine tube side, but passes through the shell side, leaving the middle of the shell side empty, at this time, the fine silicon particles will not block the tube side, reducing the blockage problem.

[0013] 2. In the utility model, the inner wall of the treatment tube is easily cleaned by arranging the circular block, the screw rod, the driving motor, the mounting block and the annular scraper, so as to avoid the residual trichlorosilane on the inner wall of the treatment tube to affect the subsequent cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the first viewing angle in the embodiment of the present application;

[0016] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 It is a partially cutaway and enlarged three-dimensional structural schematic diagram of an embodiment of the present application;

[0018] Figure 4 It is a schematic diagram of the top view structure from the first viewing angle in the embodiment of the present application.

[0019] In the figure: 1. treatment cylinder; 2. material inlet; 3. tube circulating water outlet; 4. tube bundle; 5. jacket circulating water outlet; 6. jacket circulating water inlet; 7. tube circulating water inlet; 8. material outlet; 9. thermometer; 10. tube tube; 11. circular block; 12. screw rod; 13. drive motor; 14. mounting block; 15. annular scraper; 16. fixing bolt; 17. moving plate; 18. threaded rod; 19. anti-skid plate; 20. slag discharge port. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example: Reference Figure 1-4 A device for cooling trichlorosilane wet dust removal washing liquid is shown, comprising a treatment barrel 1, a material inlet 2 is provided on the top of the treatment barrel 1, a slag discharge port 20 is provided on the bottom of the treatment barrel 1, a jacket is provided on the peripheral outer wall of the treatment barrel 1, a jacket circulating water outlet 5 and a jacket circulating water inlet 6 are installed on the side of the treatment barrel 1, a tube bundle 4 is provided on the jacket, the jacket circulating water outlet 5 and the jacket circulating water inlet 6 are connected, a tube-side pipe 10 is provided in the treatment barrel, a tube-side circulating water outlet 3 and a tube-side circulating water inlet 7 are respectively installed on the sides of the treatment barrel 1 away from each other, the tube-side circulating water outlet 3 and the tube-side circulating water inlet 7 are connected through the tube-side pipe 10, a material outlet 8 is installed on the peripheral outer wall of the treatment barrel 1, and a thermometer 9 is provided on the peripheral outer wall of the treatment barrel 1.

[0022] By means of the above structure, when in use, the raw materials are first input into the processing barrel 1 from the material inlet 2, and then the cooling water is circulated internally through the tube-side circulating water outlet 3, the tube-side circulating water inlet 7 and the tube-side pipe 10, and at the same time, the cooling water is circulated externally through the jacket, the jacket circulating water outlet 5 and the jacket circulating water inlet 6, thereby cooling from both the inside and the outside at the same time, thereby increasing the cooling heat exchange area and effectively reducing the loss of trichlorosilane wet dust removal washing liquid. At the same time, the material does not pass through the fine tube side, but passes through the shell side, leaving the middle of the shell side empty. At this time, the fine silicon particles will not block the tube side, reducing the problem of blockage.

[0023] like Figure 3As shown, four supporting columns are installed at the bottom of the processing cylinder 1, and a movable plate 17 is installed at the bottom of the four supporting columns. A circular block 11 is installed on the inner wall of the peripheral side of the processing cylinder 1, and a screw rod 12 is rotatably installed relative to the inner wall of the circular block 11. A driving motor 13 is installed on the top of the movable plate 17. The bottom end of the screw rod 12 extends to the outside of the processing cylinder 1 and is installed on the output shaft of the driving motor 13. A mounting block 14 is threadedly sleeved on the screw rod 12, and a ring-shaped scraper 15 is detachably installed on the side of the mounting block 14. Through the arrangement of the circular block 11, the screw rod 12, the driving motor 13, the mounting block 14, the ring-shaped scraper 15, the supporting columns and the movable plate 17, it is convenient to clean the inner wall of the processing cylinder 1, so as to avoid the residual trichlorosilane on the inner wall of the processing cylinder 1 as much as possible, which affects the subsequent cooling effect.

[0024] like Figure 1 As shown, four universal wheels are installed at the bottom of the movable plate 17, and an anti-skid mechanism is provided on the movable plate 17. The advantage of such a setting is that the position of the processing cylinder 1 can be easily adjusted through the setting of the universal wheels.

[0025] like Figure 2 As shown, the anti-skid mechanism includes two anti-skid threaded holes opened at the top of the movable plate 17, and threaded rods 18 are threadedly installed in the two anti-skid threaded holes. The bottom and top of the two threaded rods 18 are respectively installed with anti-skid plates 19 and knobs. The advantage of this arrangement is that the movable plate 17 can be easily fixed to avoid movement during use through the arrangement of the threaded rods 18, the anti-skid plates 19 and the knobs.

[0026] like Figure 3 As shown, two movable holes are provided on the side of the mounting block 14, and fixing bolts 16 are movably installed in the two movable holes. Two fixing threaded holes are provided on the inner wall of the peripheral side of the annular scraper 15, and the ends of the two fixing bolts 16 are respectively threadedly installed in the two fixing threaded holes. The advantage of this arrangement is that the annular scraper 15 can be easily replaced through the arrangement of the fixing bolts 16.

[0027] like Figure 3 As shown, a guide rod is installed on the relative inner wall of the circular block 11, and a guide hole is opened on the top of the mounting block 14, and the guide rod passes through the guide hole. The advantage of this arrangement is that the mounting block 14 can be moved in the horizontal direction through the setting of the guide rod.

[0028] like Figure 2 As shown, the moving plate

[0029] like Figure 2 As shown, the knob is provided with anti-skid grooves. The advantage of such a setting is that the anti-skid grooves make it easier for the staff to turn the knob.

[0030] How this utility works:

[0031] When in use, first move the processing cylinder 1 to the specified position through the universal wheel, the support column and the moving plate 17, and then turn the knob. The rotation of the knob will drive the threaded rod 18 to rotate, and the rotation of the threaded rod 18 will cause the anti-slip plate 19 to drop, so that the anti-slip plate 19 is in contact with the ground to avoid movement during use. When it is fixed, the raw material is input into the processing cylinder 1 from the material inlet 2, and then the cooling water is circulated internally through the tube-side circulating water outlet 3, the tube-side circulating water inlet 7 and the tube-side pipe 10, and the cooling water is circulated externally through the jacket, the jacket circulating water outlet 5 and the jacket circulating water inlet 6, so as to cool the raw material from the inside and outside. The entire tube 1 is cooled at the same time, thereby increasing the cooling heat exchange area and effectively reducing the loss of trichlorosilane wet dust removal washing liquid. At the same time, the material does not pass through the fine tube side, but through the shell side, leaving the middle of the shell side empty. At this time, the fine silicon particles will not block the tube side, reducing the problem of blockage. After cooling, the drive motor 13 is started, and the output of the drive motor 13 will drive the screw rod 12 to rotate. The rotation of the screw rod 12 will move the mounting block 14 through the guide rod. The movement of the mounting block 14 will move the annular scraper 15, thereby cleaning the inner wall of the treatment tube 1, thereby avoiding trichlorosilane residue on the inner wall of the treatment tube 1 as much as possible, which affects the subsequent cooling effect.

[0032] Finally, it should be noted that the above 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 make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for cooling trichlorosilane wet dust removal washing liquid, comprising a treatment cylinder (1), characterized in that: The top of the treatment barrel (1) is provided with a material inlet (2), the bottom of the treatment barrel (1) is provided with a slag discharge port (20), the peripheral outer wall of the treatment barrel (1) is provided with a jacket, the side of the treatment barrel (1) is provided with a jacket circulating water outlet (5) and a jacket circulating water inlet (6), the jacket is provided with a tube bundle (4), the jacket circulating water outlet (5) and the jacket circulating water inlet (6) are connected, a tube-side pipe (10) is provided in the treatment barrel, the sides of the treatment barrel (1) away from each other are provided with a tube-side circulating water outlet (3) and a tube-side circulating water inlet (7), the tube-side circulating water outlet (3) and the tube-side circulating water inlet (7) are connected through the tube-side pipe (10), the peripheral outer wall of the treatment barrel (1) is provided with a material outlet (8), and the peripheral outer wall of the treatment barrel (1) is provided with a thermometer (9).

2. The device for cooling trichlorosilane wet dust removal washing liquid according to claim 1, characterized in that: Four support columns are installed at the bottom of the processing cylinder (1), and a movable plate (17) is installed at the bottom of the four support columns. A circular block (11) is installed on the inner wall of the peripheral side of the processing cylinder (1), and a screw rod (12) is rotatably installed relative to the inner wall of the circular block (11). A driving motor (13) is installed on the top of the movable plate (17). The bottom end of the screw rod (12) extends to the outside of the processing cylinder (1) and is installed on the output shaft of the driving motor (13). A mounting block (14) is threadedly sleeved on the screw rod (12), and a ring scraper (15) is detachably installed on the side of the mounting block (14).

3. A device for cooling trichlorosilane wet dust removal washing liquid according to claim 2, characterized in that: Two movable holes are provided on the side of the mounting block (14), and fixing bolts (16) are movably installed in the two movable holes. Two fixing threaded holes are provided on the inner wall of the peripheral side of the annular scraper (15), and the ends of the two fixing bolts (16) are respectively threadedly installed in the two fixing threaded holes.

4. The device for cooling trichlorosilane wet dust removal washing liquid according to claim 2, characterized in that: A guide rod is installed on the opposite inner wall of the circular block (11), a guide hole is opened on the top of the mounting block (14), and the guide rod passes through the guide hole.

5. The device for cooling trichlorosilane wet dust removal washing liquid according to claim 2, characterized in that: Four universal wheels are installed at the bottom of the movable plate (17), and an anti-slip mechanism is provided on the movable plate (17).

6. The device for cooling trichlorosilane wet dust removal washing liquid according to claim 5, characterized in that: The anti-skid mechanism comprises two anti-skid threaded holes opened at the top of the movable plate (17), threaded rods (18) are threadedly installed in the two anti-skid threaded holes, and anti-skid plates (19) and knobs are respectively installed at the bottom and top of the two threaded rods (18).

7. The device for cooling trichlorosilane wet dust removal washing liquid according to claim 6, characterized in that: The knob is provided with anti-slip grooves.