A vapor-phase cooling crystallization apparatus for antimony white furnace

Abstract

This invention belongs to the field of antimony white furnace gas phase crystallization technology, specifically an antimony white furnace gas phase cooling crystallization device, including a crystallizer fixedly installed on the antimony white furnace via a flange, and further including: an air inlet and a material outlet opened on the crystallizer; a heat insulation chamber located at the lower end of the crystallizer; two collection plates slidably installed in the heat insulation chamber; a crystallization chamber located at the upper end of the heat insulation plate; a vent pipe installed in the middle of the crystallization chamber; and an air outlet opened on the crystallizer. By setting up the heat insulation plate and the two collection plates, the crystallization chamber and the antimony white furnace are isolated, so that the gas phase in the antimony white furnace cannot directly enter the crystallization chamber, thus ensuring the temperature of the crystallization chamber.

Description

Technical Field

[0001] This invention belongs to the field of antimony white furnace gas phase crystallization, specifically an antimony white furnace gas phase cooling crystallization device. Background Technology

[0002] Antimony white, also known as antimony trioxide, is a white crystalline powder commonly used as a white pigment, pharmaceutical, fire-retardant coating, and flame retardant. Industrially, antimony white is produced by using metallic antimony as raw material. The metallic antimony is placed in an antimony white furnace and heated and melted. At the same time, air is introduced into the antimony white furnace to oxidize the metallic antimony into antimony white vapor, which is the gas phase of the antimony white furnace. The antimony white vapor is then passed into a crystallization device to cool and crystallize, thus obtaining high-purity antimony white.

[0003] A patent application with publication number CN113322507B discloses a crystallization collection tube for antimony trioxide powder, including a crystallization tube, a movable crystallization cover slidably disposed inside the crystallization tube, a control rod for controlling the movement of the movable crystallization cover, and a collection box for collecting crystals. Antimony trioxide vapor is collected by the movable crystallization cover. After the collection of antimony trioxide vapor is full, the control rod controls the movable crystallization cover to move upward, and the antimony trioxide vapor simultaneously enters the crystallization area of ​​the crystallization tube. Cold air is introduced into the clean area, and the antimony trioxide vapor condenses into antimony trioxide crystals upon contact with the cold air. The antimony trioxide crystals fall into the collection box.

[0004] During the crystallization of antimony white vapor, if the temperature cannot be rapidly cooled, the orthorhombic crystal content in the antimony white crystals will increase, causing the whiteness of the antimony white to be unstable. The above solution isolates the crystallization chamber and the antimony white furnace by setting several inclined partitions between them. However, the crystallization chamber and the antimony white furnace are still connected, and the heat insulation effect is poor, so the heat in the antimony white furnace still has a significant impact on the rapid cooling of the antimony white vapor.

[0005] Therefore, the present invention provides an antimony white furnace vapor phase cooling crystallization apparatus. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The antimony white furnace gas phase cooling crystallization device of the present invention includes a crystallizer, which is fixedly installed on the antimony white furnace by a flange, and further includes: an air inlet and a material outlet opened on the crystallizer; a heat insulation chamber provided at the lower end of the crystallizer, and a heat insulation plate provided at the upper end of the heat insulation chamber; two collection plates slidably installed in the heat insulation chamber; a crystallization chamber provided at the upper end of the heat insulation plate; a vent pipe installed in the middle of the crystallization chamber, through which cold air flows into the crystallization chamber; and an air outlet opened on the crystallizer.

[0008] Preferably, it further includes: a partition plate fixedly installed at the upper end of the crystallization chamber; two air outlets symmetrically opened on the partition plate; two cover plates slidably installed on the partition plate; and a cover plate rotatably installed at the discharge port.

[0009] Preferably, the vent pipe is rotatably connected to the isolation plate, a swivel is fixedly installed on the vent pipe, and a plurality of vent holes are opened on the swivel, the vent holes being connected to the vent pipe.

[0010] Preferably, the crystallizer further includes: four connecting assemblies symmetrically mounted on the inner wall of the crystallizer, each connecting assembly including a connecting block; a crystallizing block rotatably mounted on the connecting blocks of two adjacent connecting assemblies; a circulation pipe fixedly mounted on the crystallizer, the circulation pipe being rotatably connected to the crystallizing block and communicating with the crystallizing block; four scrapers slidably mounted on the inner wall of the crystallizer, the scrapers being used to scrape crystals off the crystallizing blocks; and a threaded rod driving the scrapers to move up and down, the threaded rod being rotatably mounted on the isolation plate.

[0011] Preferably, the connecting component contains a plurality of connecting blocks, and each crystal block contains one crystal block.

[0012] Preferably, the connecting assembly further includes: a slide plate fixedly installed on the inner wall of the crystallizer; a telescopic connecting rod structure installed on the slide plate, the connecting blocks being evenly distributed on the telescopic connecting rod structure, and the circulation pipe being telescopic.

[0013] Preferably, two scrapers are symmetrically mounted on the scraper, and the two scrapers are used to scrape off the crystals on the crystallization block and the crystals on the inner wall of the crystallizer, respectively.

[0014] Preferably, a plurality of button assemblies are fixedly installed on the scraper, and the scraper is slidably connected to the scraper blade through the button assemblies.

[0015] Preferably, the device further includes a plurality of recessed blocks fixedly installed on the inner wall of the crystallizer. The recessed block group includes two recessed blocks located on the upper and lower sides of the scraper. The length of the scraper is greater than the length of the crystallizing block, and the recessed blocks are located on both sides of the crystallizing block.

[0016] Preferably, it further includes: a push rod rotatably mounted on the isolation plate, on which a round block is slidably mounted; a groove formed on the cover plate; a triangular block installed in the groove; and a spring installed between the round block and the push rod.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The antimony white furnace vapor phase cooling crystallization device of the present invention isolates the crystallization chamber and the antimony white furnace by setting up a heat insulation plate and two collection plates, so that the vapor phase in the antimony white furnace cannot directly enter the crystallization chamber, thus ensuring the temperature of the crystallization chamber. This allows the antimony white vapor to be rapidly cooled and crystallized after entering the clean chamber, thus ensuring the whiteness of the antimony white.

[0019] 2. The antimony white furnace vapor phase cooling crystallization device of the present invention, by setting a cover plate, allows the antimony white vapor to enter the crystallization chamber, and the cold air flows out from the vent pipe but cannot flow out of the crystallization chamber, thereby increasing the pressure in the crystallization chamber. The increased pressure during the crystallization of antimony white helps to improve the crystallinity of antimony white vapor.

[0020] 3. The antimony white furnace vapor phase cooling crystallization device of the present invention, by setting up a swirl vane, allows antimony white vapor to rotate and rise in the crystallization chamber, adhering to the surface of the crystal block. There is no antimony white vapor flow at the location of the swirl vane. At the same time, the antimony white vapor enters the crystallization chamber from the left and right sides of the swirl vane, avoiding the problem of antimony white vapor flowing to the vicinity of the swirl vane and causing the crystallization of antimony white vapor to block the vent.

[0021] 4. The antimony white furnace vapor phase cooling crystallization device of the present invention, by setting a rotatable crystallization block, allows each batch of antimony white vapor to come into contact with the side without antimony white crystals, ensuring that the antimony white vapor can be rapidly cooled upon contact with the crystallization block. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a perspective view of Embodiment 1 of the present invention;

[0024] Figure 2 This is a cross-sectional view of the crystallizer of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the crystallizer of the present invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of the cleanroom of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the crystal block of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the circulation tube and crystallization block of the present invention;

[0029] Figure 7 This is a schematic diagram of the telescopic linkage structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the scraper and scraper blade of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the isolation plate and cover plate of the present invention;

[0032] Figure 10 This is a schematic diagram of the push rod and circular block of the present invention;

[0033] In the diagram: 1. Crystallizer; 2. Air inlet; 3. Feed outlet; 4. Insulation chamber; 5. Insulation plate; 6. Collection plate; 7. Crystallization chamber; 8. Ventilation pipe; 9. Outlet 1; 10. Isolation plate; 11. Outlet 2; 12. Cover plate 1; 13. Rotary blade; 14. Ventilation hole; 15. Connecting assembly; 151. Connecting block; 152. Slide plate; 153. Telescopic connecting rod structure; 16. Crystallization block; 17. Circulation pipe; 18. Scraper; 19. Threaded rod; 20. Scraper; 21. Button assembly; 22. Concave block; 23. Push rod; 24. Round block; 25. Groove; 26. Triangular block; 27. Spring; 28. Cover plate 2. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] Example 1

[0036] like Figure 1-9 As shown in the embodiment of the present invention, an antimony white furnace gas phase cooling crystallization device includes a crystallizer 1, which is fixedly installed on the antimony white furnace by a flange. It also includes: an air inlet 2 and a material outlet 3 opened on the crystallizer 1; a heat insulation chamber 4 located at the lower end of the crystallizer 1, with a heat insulation plate 5 at the upper end of the heat insulation chamber 4; two collection plates 6 slidably installed within the heat insulation chamber 4; a crystallization chamber 7 located at the upper end of the heat insulation plate 5; a ventilation pipe 8 installed in the middle of the crystallization chamber 7, through which cold air flows into the crystallization chamber 7; and an air outlet 9 opened on the crystallizer 1.

[0037] Specifically, in the production of antimony white, when the metallic antimony in the antimony white furnace oxidizes with air, antimony white vapor is generated, which is the gas phase in the antimony white furnace. A crystallization device is needed to crystallize this antimony white vapor. The position below the heat insulation plate 5 is the working station of the collection plate 6. Figure 2In the process, the collecting plate 6 is electrically controlled to slide left and right relative to the heat insulation plate 5. Initially, the left collecting plate 6 is in the working position. During operation, antimony vapor enters the heat insulation chamber 4 through the air inlet 2. When the collecting plate 6 is full of antimony vapor, the two collecting plates 6 slide to the left. The antimony vapor in the left collecting plate 6 enters the crystallization chamber 7, while the right collecting plate 6 remains in the working position, collecting the antimony vapor flowing from the antimony furnace into the heat insulation chamber 4. After entering the crystallization chamber 7, the antimony vapor comes into contact with the cold air discharged from the vent pipe 8, causing the antimony vapor to rapidly condense into crystals. The crystals are discharged from the discharge port 3. The cold air, after contacting the antimony vapor, is discharged from the air outlet 9. Then, the right collecting plate 6 is controlled to slide to the right, and this cycle is repeated to achieve batch crystallization of the gas phase in the antimony furnace. Antimony white crystals include cubic and orthorhombic crystals. When antimony white vapor in an antimony white furnace is rapidly cooled and crystallized, the resulting crystals are primarily cubic antimony white crystals. If the temperature cannot be rapidly cooled during the crystallization process, the orthorhombic content of antimony white crystals in the crystals will increase, causing instability in the whiteness of the antimony white. Existing technologies isolate the crystallization chamber 7 and the antimony white furnace by installing several inclined baffles. However, the crystallization chamber 7 and the antimony white furnace remain connected, resulting in poor insulation. This means that the heat from the antimony white furnace still significantly affects the rapid cooling of the antimony white vapor. By installing a heat insulation plate 5 and two collecting plates 6 to isolate the crystallization chamber 7 and the antimony white furnace, the gas phase from the antimony white furnace cannot directly enter the crystallization chamber 7, ensuring the temperature of the crystallization chamber 7 and improving the aforementioned problems.

[0038] like Figure 2 and 9 As shown, it also includes: a partition plate 10 fixedly installed on the upper end of the crystallization chamber 7; two air outlets 11 symmetrically opened on the partition plate 10; two cover plates 12 slidably installed on the partition plate 10; and a cover plate 28 rotatably installed at the discharge port 3.

[0039] Specifically, in the initial state, both cover plates 12 block the air outlet 11, and cover plate 28 blocks the material outlet 3. When the left-side collecting plate 6 slides to the left, away from the working position, the antimony vapor in the collecting plate 6 enters the crystallization chamber 7. Cold air is controlled to flow out from the vent pipe 8, rapidly cooling and crystallizing the antimony vapor in the crystallization chamber 7. Since the crystallization chamber 7 is not connected to the outside at this time, and cold air is still continuously being supplied to the crystallization chamber 7, the pressure inside the crystallization chamber 7 increases. This increased pressure helps to improve the crystallinity of the antimony vapor. During the process of the collecting plate 6 sliding to the left into the working position... The left cover plate 12 slides, causing the second air outlet 11 to open. The cold air in the crystallization chamber 7 is discharged from the second air outlet 11, and the pressure in the crystallization chamber 7 returns to its original state. There are two air outlets 11. When the left collection plate 6 leaves the working position and the right collection plate 6 enters the working position, the right air outlet 11 is controlled to open, so that the cold air in the crystallization chamber 7 is discharged and the pressure is restored. The air outlet 11 from which the cold air is discharged is separated from the position where the antimony white vapor in the collection plate 6 enters the clean room, so as to prevent the antimony white vapor from being discharged from the second air outlet 11 as soon as it enters the clean room.

[0040] like Figure 2 and 4 As shown, the vent pipe 8 is rotatably connected to the isolation plate 10. A swivel blade 13 is fixedly installed on the vent pipe 8. A plurality of vent holes 14 are opened on the swivel blade 13, and the vent holes 14 are connected to the vent pipe 8.

[0041] Specifically, the rotation of the vent pipe 8 causes the swivel blade 13 to rotate, which in turn causes the cold air and antimony vapor in the crystallization chamber 7 to form a swirling flow. The cold air and antimony vapor rise and rotate against the inner wall of the crystallization chamber 7, making the cold air and antimony vapor mix evenly. This ensures that the antimony vapor can be rapidly cooled and crystallized. Furthermore, the swirling flow of the cold air and antimony vapor prevents antimony vapor from flowing near the swivel blade 13, thus avoiding the problem of antimony vapor flowing to the vicinity of the swivel blade 13 and causing crystallization that would block the vent hole 14.

[0042] like Figure 4-7 As shown, it also includes: four connecting assemblies 15 symmetrically installed on the inner wall of the crystallizer 1, each connecting assembly 15 including a connecting block 151; crystal blocks 16 rotatably installed on the connecting blocks 151 of two adjacent connecting assemblies 15; a circulation pipe 17 fixedly installed on the crystallizer 1, the circulation pipe 17 being rotatably connected to the crystal blocks 16 and communicating with the crystal blocks 16; four scrapers 18 slidably installed on the inner wall of the crystallizer 1, the scrapers 18 being used to scrape off the crystals on the crystal blocks 16; and threaded rods 19 driving the scrapers 18 to move up and down, the threaded rods 19 being rotatably installed on the isolation plate 10.

[0043] Specifically, circulating cold water is installed in the circulation pipe 17 and the crystallization block 16. During operation, the ventilation pipe 8 rotates, driving the vane 13 to rotate, causing the cold air in the crystallization chamber 7 to form a swirling flow with the antimony vapor. The cold air and antimony vapor rise and rotate against the surface of the crystallization block 16, causing the antimony vapor to condense on the surface of the crystallization block 16. When all of the antimony vapor has condensed into crystals, the two collecting plates 6 are controlled to slide left and right to replace each other. At the same time, the crystallization block 16 is controlled to rotate 180 degrees, so that the side containing crystals faces the inner wall of the crystallization chamber 7, and the uncrystallized side comes into contact with the new antimony vapor. The threaded rod 19 is controlled to rotate, driving the scraper 18 to move up and down to scrape off the crystals on the crystallization block 16, causing the crystallization block 16 to fall off and be discharged from the outlet into the crystallization chamber 7. By setting the rotatable crystallization block 16, each batch of antimony vapor can come into contact with the side without antimony vapor crystals, ensuring that the antimony vapor can be rapidly cooled when in contact with the crystallization block 16.

[0044] like Figure 4-7 As shown, the connecting component 15 contains a plurality of connecting blocks 151, and each crystal block 16 contains one crystal block 16.

[0045] Specifically, compared to the space required to rotate a single long crystal block 16, the space required to rotate multiple short crystal blocks 16 is smaller, thus reducing the volume of the crystallization device.

[0046] like Figure 4-6 As shown, the connecting assembly 15 further includes: a slide plate 152 fixedly installed on the inner wall of the crystallizer 1; a telescopic connecting rod structure 153 installed on the slide plate 152, the connecting blocks 151 being evenly distributed on the telescopic connecting rod structure 153, and the circulation pipe 17 being telescopic.

[0047] Specifically, in the initial state, the upper and lower surfaces of two adjacent crystal blocks 16 are in contact. When the crystal block 16 needs to rotate, the telescopic linkage assembly is first controlled to extend downward, causing the crystal blocks 16 to extend synchronously, so that the crystal blocks 16 are not in contact. Then the crystal block 16 can be controlled to rotate. After the crystal block 16 rotates 180 degrees, the telescopic linkage structure 153 is controlled to retract upward, causing the crystal blocks 16 to retract to the in-place state. If the rotation is direct, the upper and lower surfaces of the crystal block 16 need to have a certain curvature to ensure that the rotation is not hindered by the two adjacent crystal blocks 16. By setting the telescopic linkage structure 153, before rotation, the crystal block 16 is controlled to move downward, and the two adjacent crystal blocks 16 do not contact each other, so that the crystal block 16 can be designed as a square, so that the scraper 18 can fully contact the surface of the crystal block 16 during the movement, ensuring that all the crystals on the crystal block 16 can be scraped off by the scraper 18.

[0048] like Figure 2 , 3As shown in Figure 5, two scrapers 20 are symmetrically installed on the scraper 18. The two scrapers 20 are used to scrape off the crystals on the crystallization block 16 and the crystals on the inner wall of the crystallizer 1, respectively.

[0049] Specifically, since a small amount of antimony white vapor will inevitably come into contact with the inner wall of the crystallization chamber 7, a small amount of crystals will be generated on the inner wall of the crystallization chamber 7. By setting two scrapers 20, the crystals on the crystallization block 16 can be scraped off at the same time as the crystals on the inner wall of the crystallization chamber 7, which is convenient to use.

[0050] like Figure 8 As shown, a plurality of button assemblies 21 are fixedly installed on the scraper 20, and the scraper 20 is slidably connected to the scraper plate 18 through the button assemblies 21.

[0051] Specifically, two scrapers 20 are located on the left and right sides of the scraper 18. In the initial state, the scrapers 20 are in contact with the inner wall of the crystallization block 16 and the crystallization chamber 7. The scraper 18 is controlled to move downward, which drives the scrapers 20 to move downward synchronously, so as to scrape off the crystals on the crystallization block 16 and the inner wall of the crystallization chamber 7. When the scraper 18 moves to the bottom of the crystallization block 16, the scrapers 20 are controlled to slide left and right, and move closer to each other. The scrapers 20 do not contact the crystallization chamber 7 and the crystallization block 16. Then the scrapers 20 are controlled to move upward to the original position to avoid not scraping cleanly when scraping downward. The scrapers 20 move upward and hang the crystals remaining on the crystallization block 16 and the inner wall of the crystallization chamber 7 on the scrapers 20, and move with the scrapers 20 to the isolation plate 10. After a long period of accumulation, the scrapers 20 and the threaded rod 19 are damaged.

[0052] like Figure 5 and 8 As shown, it also includes a number of recessed blocks 22 groups fixedly installed on the inner wall of the crystallizer 1. Each recessed block 22 group includes two recessed blocks 22 located on the upper and lower sides of the scraper 18. The length of the scraper 20 is greater than the length of the crystallizing block 16, and the recessed blocks 22 are located on both sides of the crystallizing block 16.

[0053] Specifically, the inner wall of the recess 22 is not sloped. By placing the recess 22 on both sides of the crystallizing block 16, the problem of crystals falling onto the recess 22 when the scraper 20 scrapes off the crystals is avoided. The button assembly 21 adopts a structure that retracts and fixes when pressed once, and returns to its original position when pressed again. When the scraper 20 moves downward to the lower end of the crystallizing block 16, the scraper 20 contacts the recess 22. The scraper 20 moves into the interior of the recess 22, and under the push of the slope of the recess 22, the scraper 20 moves relatively closer to the scraper 18. That is, the button assembly 21 is pressed, so that the scraper 20 moves towards the scraper 18 and is fixed. When the scraper 20 moves upward, it does not contact the surface of the crystallizing block 16 and the crystallizing chamber 7. When the scraper 20 moves to the top, it contacts the upper recess 22, and under the push of the slope of the upper recess 22, it presses the button assembly 21 again, so that when the scraper 20 moves downward, it can contact the surface of the crystallizing block 16 and the crystallizing chamber 7 again, which is convenient to use.

[0054] Example 2

[0055] like Figure 9-10 As shown in the first embodiment, another embodiment of the present invention further includes: a push rod 23 rotatably mounted on the isolation plate 10, a circular block 24 slidably mounted on the push rod 23; a groove 25 formed on the cover plate 12; a triangular block 26 installed in the groove 25; and a spring 27 installed between the circular block 24 and the push rod 23.

[0056] Specifically, the circular block 24 can move up and down relative to the push rod 23, and can also slide horizontally relative to the push rod 23. The rotation of the push rod 23 is electrically controlled, and the push rod 23 rotates intermittently clockwise and counterclockwise. In the initial state, both cover plates 12 cover the air outlet 11. Controlling the push rod 23 to rotate clockwise once will push the left cover plate 12 forward through the circular block 24. When the cover plate 12 moves to the frontmost position, the circular block 24 continues to move under the action of the push rod 23. When the circular block 24 moves, it contacts the triangular block 26. The circular block 24 passes through the triangular block 26 through the compression spring 27. When the push rod 23 rotates back to its original position, the circular block 24 pushes the triangular block 26, and... This causes cover plate 12 to move back to its original position. When cover plate 12 moves onto air outlet 11, cover plate 12 cannot move. Push rod 23 continues to rotate, and round block 24 moves synchronously with push rod 23. During the movement, round block 24 passes through triangular block 26 of cover plate 12 via compression spring 27. At the same time, round block 24 on the right side of push rod 23 disengages from groove 25 of right cover plate 12. When push rod 23 rotates back to its initial position, round block 24 on push rod 23 re-enters groove 25 during the movement. Similarly, when push rod 23 rotates counterclockwise, cover plate 12 on the left side remains stationary, while cover plate 12 on the right side moves back and forth once. This cycle is repeated to achieve intermittent reciprocating movement of the two cover plates 12.

[0057] Working principle: Antimony vapor enters the insulation chamber 4 through the air inlet 2. When the collecting plate 6 is full of antimony vapor, the two collecting plates 6 slide to the left. The antimony vapor in the left collecting plate 6 enters the crystallization chamber 7, while the right collecting plate 6 is positioned at the working position to collect the antimony vapor flowing from the antimony furnace into the insulation chamber 4. After the antimony vapor enters the crystallization chamber 7, the air pipe 8 rotates, causing the vane 13 to rotate, which makes the cold air and antimony vapor in the crystallization chamber 7 form a swirling flow. The cold air and antimony vapor rotate and rise against the surface of the crystal block 16, making the cold air and antimony vapor mix evenly. The antimony vapor contacts the surface of the cold air and the crystal block 16, and the antimony vapor forms a swirling flow on the surface of the crystal block 16. Surface rapid cooling crystallization: After all the antimony vapor in the crystallization chamber 7 has condensed into crystals, the two collecting plates 6 are controlled to slide left and right to replace each other. At the same time, the crystal block 16 is controlled to rotate 180 degrees so that the side containing crystals faces the inner wall of the crystallization chamber 7, and the uncrystallized side comes into contact with the new antimony vapor. The threaded rod 19 is controlled to rotate, which drives the scraper 18 to move up and down to scrape off the crystals on the crystal block 16, causing the crystal block 16 to fall off and be discharged from the outlet into the crystallization chamber 7. Then, the cover plate 12 is controlled to slide to open the air outlet 11. The cold air in the crystallization chamber 7 flows from the air outlet 11 to the air outlet 9 and is discharged from the crystallizer 1 from the air outlet 9.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vapor-phase cooling crystallization apparatus for an antimony white furnace, comprising a crystallizer (1), wherein the crystallizer (1) is fixedly mounted on the antimony white furnace via a flange, characterized in that, Also includes: An air inlet (2) and a feed outlet (3) are provided on the crystallizer (1); A heat insulation chamber (4) is provided at the lower end of the crystallizer (1), and a heat insulation plate (5) is provided at the upper end of the heat insulation chamber (4). Two collection plates (6) are slidably installed inside the insulation chamber (4); A crystallization chamber (7) is provided at the upper end of the heat insulation plate (5); A ventilation pipe (8) is installed in the middle of the crystallization chamber (7), through which cold air flows from the ventilation pipe (8) into the crystallization chamber (7); An outlet (9) is provided on the crystallizer (1); Also includes: A partition plate (10) is fixedly installed at the upper end of the crystallization chamber (7); Two symmetrical air outlets (11) are opened on the isolation plate (10); Two cover plates (12) are slidably mounted on the isolation plate (10); Rotate the cover plate 2 (28) installed at the discharge port (3); The ventilation pipe (8) is rotatably connected to the isolation plate (10). A swivel blade (13) is fixedly installed on the ventilation pipe (8). A plurality of ventilation holes (14) are opened on the swivel blade (13). The ventilation holes (14) are connected to the ventilation pipe (8). Also includes: Four symmetrically mounted connecting components (15) are installed on the inner wall of the crystallizer (1), each connecting component (15) including a connecting block (151). Rotate the crystal block (16) mounted on the connecting block (151) of the two adjacent connecting assemblies (15). A circulation pipe (17) is fixedly installed on the crystallizer (1), the circulation pipe (17) is rotatably connected to the crystal block (16), and the circulation pipe (17) is in communication with the crystal block (16); Four scrapers (18) are slidably mounted on the inner wall of the crystallizer (1), the scrapers (18) being used to scrape off the crystals on the crystal block (16); A threaded rod (19) drives the scraper (18) to move up and down, and the threaded rod (19) is rotatably mounted on the isolation plate (10); The connecting component (15) contains a plurality of connecting blocks (151), each connecting block (151) containing a crystal block (16); The connection component (15) further includes: A sliding plate (152) is fixedly installed on the inner wall of the crystallizer (1); The telescopic connecting rod structure (153) is installed on the slide plate (152), the connecting blocks (151) are evenly distributed on the telescopic connecting rod structure (153), and the circulation pipe (17) is telescopic.

2. The antimony white furnace vapor-phase cooling crystallization apparatus according to claim 1, characterized in that: Two scrapers (20) are symmetrically installed on the scraper (18). The two scrapers (20) are used to scrape off the crystals on the crystal block (16) and the crystals on the inner wall of the crystallizer (1), respectively.

3. The antimony white furnace vapor-phase cooling crystallization apparatus according to claim 2, characterized in that: A plurality of button assemblies (21) are fixedly installed on the scraper (20), and the scraper (20) is slidably connected to the scraper plate (18) through the button assemblies (21).

4. The antimony white furnace vapor-phase cooling crystallization apparatus according to claim 3, characterized in that: It also includes a number of recessed blocks (22) fixedly installed on the inner wall of the crystallizer (1). The recessed block (22) group includes two recessed blocks (22) located on the upper and lower sides of the scraper (18). The length of the scraper (20) is greater than the length of the crystallizing block (16). The recessed blocks (22) are located on both sides of the crystallizing block (16).

5. The antimony white furnace vapor-phase cooling crystallization apparatus according to claim 4, characterized in that: Also includes: Rotate the push rod (23) mounted on the isolation plate (10), on which a round block (24) is slidably mounted; A groove (25) is formed on the cover plate (12); Triangular block (26) installed in the groove (25); A spring (27) is installed between the circular block (24) and the push rod (23).

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