Reaction device for preparing potassium fluoride from crude potassium bifluoride

Abstract

The utility model discloses a reaction device for preparing potassium fluoride from crude potassium hydrogen fluoride, which comprises a potassium fluoride preparation reaction tank, the top of the potassium fluoride preparation reaction tank is communicated with a feed pipe, mounting grooves are arranged in two sides of the potassium fluoride preparation reaction tank, openings of the two groups of mounting grooves are arranged oppositely, scrapers are inserted into inner cavities of the two groups of mounting grooves, and the scrapers are connected with the feed pipe. The scraper blade is tightly attached to the inner wall of the potassium fluoride preparation reaction tank under the action of the pushing assemblies, the driving assemblies drive the scraper blade to rotate, the scraper blade is driven by the driving assemblies to rotate, the scraper blade is driven by the driving assemblies to rotate, and the scraper blade is driven by the driving assemblies to rotate. And the crystals attached to the inner wall of the potassium fluoride preparation reaction tank can be effectively scraped, so that the crystals are prevented from being attached to the inner wall of the potassium fluoride preparation reaction tank, and the next batch of products are effectively prevented from being polluted.

Description

Technical Field

[0001] This utility model belongs to the technical field of potassium fluoride reaction apparatus, specifically relating to a reaction apparatus for preparing potassium fluoride from crude potassium hydrogen fluoride. Background Technology

[0002] Potassium fluoride aqueous solution is alkaline and can corrode glass and porcelain. The preparation of potassium fluoride requires a reaction vessel to achieve the heating, evaporation and cooling functions required by the process.

[0003] Chinese Patent Publication No. CN215540831U discloses a concentration reactor with a stirring mechanism for potassium fluoride production, including a reactor body and a reactor cover. A stirring shaft is rotatably mounted inside the reactor body. Multiple sets of stirring blades are spaced apart along the circumference of the stirring shaft via an installation part. Each set of stirring blades includes a first blade and a second blade. In this invention, the first and second blades of the multiple sets of stirring blades arranged around the stirring shaft are staggered. Potassium fluoride enters from the gap between the first blade and the stirring shaft into the space between adjacent first and second blades, and then enters the space between the next first and second blade through the gap between the second blade and the inner wall of the reaction chamber, forming an S-shaped flow channel. This facilitates the full flow of potassium fluoride in the reaction chamber, thereby improving the efficiency of potassium fluoride concentration.

[0004] In the above scheme, when the reactor is used, potassium fluoride will precipitate and adhere to the inner wall of the reactor. When the crystal layer on the inner wall is too thick, it will affect the performance of the reactor, and the residual potassium fluoride crystals will easily contaminate the next batch of products. Utility Model Content

[0005] The purpose of this invention is to provide a reaction apparatus for preparing potassium fluoride from crude potassium hydrogen fluoride, in order to solve the technical defect that the crystals precipitated and attached to the inner wall of the reactor can easily affect the performance of the equipment and the quality of the product.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A reaction apparatus for preparing potassium fluoride from crude potassium hydrogen fluoride includes a potassium fluoride preparation reaction vessel. A feed pipe is connected to the top of the reaction vessel. Installation grooves are provided inside both sides of the reaction vessel, with the openings of the two sets of installation grooves facing away from each other. Scrapers are inserted into the inner cavities of both sets of installation grooves. A pushing component is provided on the opposite side of each installation groove to push the scraper outwards, causing the end of the scraper to contact the inner wall of the potassium fluoride preparation reaction vessel. A driving component is provided at the top of the reaction vessel for simultaneously rotating both sets of shells to drive the scraper to scrape away crystals adhering to the inner wall of the reaction vessel. A discharge trough is connected to the bottom of one side of the reaction vessel, and a discharge pipe is connected to the bottom of the discharge trough. A valve is connected to the end of the discharge pipe.

[0008] As a further embodiment of this utility model, the pushing component includes fixed columns that are respectively fixedly installed on the upper and lower parts of the opposite side of two sets of mounting slots. Each set of fixed columns has a circular groove inside. A sliding disk is slidably connected to the inner cavity of each set of circular grooves. A connecting rod is fixedly connected to one end of each set of sliding disks. Each set of connecting rods passes through the corresponding side circular groove and mounting slot in sequence and is fixedly connected to the corresponding position surface of the corresponding side scraper. A spring is connected to the other end of each set of sliding disks. The other end of each set of springs contacts the inner wall of the circular groove. The spring can push the sliding disk to one side to push the connecting rod out of the inner cavity of the circular groove.

[0009] As a further embodiment of this utility model, the driving assembly includes a driving motor fixedly installed at the center of the top of the potassium fluoride preparation reaction vessel. The output shaft of the driving motor is keyed to a driving rod. One end of the driving rod extends into the inner cavity of the potassium fluoride preparation reaction vessel and is rotatably connected to the bottom inner wall of the potassium fluoride preparation reaction vessel. Connecting strips are fixedly connected to both sides of the driving rod located inside the potassium fluoride preparation reaction vessel. The ends of the connecting strips on the same side are respectively fixedly connected to the surface of the corresponding side mounting groove.

[0010] As a further embodiment of this utility model, an abutment block is provided in the middle of the rear inner wall of the potassium fluoride preparation reaction vessel. Both ends of the abutment block are beveled. When the scraper moves to the position of the abutment block, the abutment block can push the scraper into the installation groove, so that the groove opening of the installation groove can remove the crystals on the surface of the scraper.

[0011] As a further embodiment of this utility model, a shell is connected to the rear surface of the potassium fluoride preparation reaction vessel and to the position corresponding to the abutment block. A connecting plate is slidably connected to the inner cavity of the shell. The end of the connecting plate is fixedly connected to the surface of the abutment block. A hand-tightening bolt is threaded through the surface of the shell. The end of the hand-tightening bolt is threaded through the shell and rotatably connected to the surface of the connecting plate.

[0012] As a further embodiment of this invention, the surface of the scraper is coated with a wear-resistant layer.

[0013] Compared with existing technologies, the apparatus for preparing potassium fluoride from crude potassium hydrogen fluoride provided by this utility model has the following advantages:

[0014] 1. This device uses a scraper that adheres closely to the inner wall of the potassium fluoride preparation reaction vessel under the action of the pushing component. The driving component drives the scraper to rotate, which can effectively scrape off the crystals attached to the inner wall of the potassium fluoride preparation reaction vessel, thus preventing the crystals from adhering to the inner wall of the potassium fluoride preparation reaction vessel and effectively avoiding contamination of the next batch of products.

[0015] 2. Through the setting of the push component, the spring can push the sliding plate to make the connecting rod extend out of the circular groove, and the elastic force of the spring can continuously push the scraper, so that the scraper is always in close contact with the inner wall of the potassium fluoride preparation reaction vessel, ensuring a stable effect of scraping crystals.

[0016] 3. When the scraper moves to the position of the abutment block, the abutment block pushes the scraper into the mounting groove. The groove opening removes the crystals on the scraper surface, so the abutment block can automatically clean the crystals on the scraper surface, preventing crystals from accumulating on the scraper. This ensures that the scraper can continuously and efficiently scrape the crystals on the inner wall of the potassium fluoride preparation reaction vessel, and timely cleaning of the crystals on the scraper can reduce wear between the scraper and the crystals, thus extending the service life of the scraper.

[0017] 4. The position of the abutment block can be easily adjusted by rotating the hand-tightening bolt, so that the abutment block retracts into or penetrates the housing, in order to adapt to different working conditions and scraping requirements and improve the applicability of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only examples of embodiments of 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 embodiment of the present utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the potassium fluoride preparation reaction vessel in an embodiment of the present invention. Figure 1 ;

[0021] Figure 3 This is a schematic cross-sectional view of the potassium fluoride preparation reaction vessel in an embodiment of the present invention. Figure 2 ;

[0022] Figure 4 This is a cross-sectional view of the mounting groove in an embodiment of the present invention.

[0023] Figure label:

[0024] 100. Potassium fluoride preparation reaction vessel; 101. Feed pipe; 102. Discharge chute; 103. Valve; 104. Discharge pipe;

[0025] 200. Scraper; 201. Mounting groove; 202. Fixing post; 203. Connecting strip; 204. Drive motor; 205. Drive rod; 206. Connecting rod; 207. Sliding disc; 208. Spring; 209. Circular groove; 210. Wear-resistant layer;

[0026] 300, Abutment block; 301, Connecting plate; 302, Housing; 303, Hand-tightening bolt. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0028] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0029] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present invention should be understood according to the specific circumstances.

[0030] See appendix Figure 1-4As shown in the figure, an embodiment of the present invention provides a reaction apparatus for preparing potassium fluoride from crude potassium hydrogen fluoride, including a potassium fluoride preparation reaction tank 100. A feed pipe 101 is connected to the top of the potassium fluoride preparation reaction tank 100. Mounting grooves 201 are provided inside both sides of the potassium fluoride preparation reaction tank 100. The openings of the two sets of mounting grooves 201 are arranged opposite to each other. Scrapers 200 are inserted into the inner cavities of both sets of mounting grooves 201. An outward-pushing scraper 200 is provided on the opposite side of each mounting groove 201. A pushing component brings the end of the scraper 200 into contact with the inner wall of the potassium fluoride preparation reaction vessel 100. A driving component is installed at the top of the potassium fluoride preparation reaction vessel 100 to simultaneously rotate two sets of housings 302, thereby driving the scraper 200 to scrape away crystals adhering to the inner wall of the potassium fluoride preparation reaction vessel 100. A discharge trough 102 is connected to the bottom of one side of the potassium fluoride preparation reaction vessel 100, and a discharge pipe 104 is connected to the bottom of the discharge trough. A valve 103 is connected to the end of the discharge pipe 104. Under the action of the pushing component, the scraper 200 adheres tightly to the inner wall of the potassium fluoride preparation reaction vessel 100. The driving component drives the scraper 200 to rotate, effectively scraping away crystals adhering to the inner wall of the potassium fluoride preparation reaction vessel 100, preventing crystals from adhering to the inner wall of the potassium fluoride preparation reaction vessel 100, and effectively avoiding contamination of the next batch of product.

[0031] The pushing component includes fixed posts 202 that are fixedly installed on the upper and lower parts of the opposite side of the two sets of mounting slots 201. Each set of fixed posts 202 has a circular groove 209 inside. A sliding disk 207 is slidably connected to the inner cavity of each set of circular grooves 209. A connecting rod 206 is fixedly connected to one end of each set of sliding disks 207. Each set of connecting rods 206 passes through the corresponding side circular groove 209 and mounting slot 201 in sequence and is fixedly connected to the corresponding position surface of the corresponding side scraper 200. A spring 208 is connected to the other end of each set of sliding disks 207. The other end of each set of springs 208 contacts the inner wall of the circular groove 209. The spring 208 can push the sliding disk 207 to one side, thereby pushing the connecting rod 206 out of the inner cavity of the circular groove 209. Spring 208 can push sliding disk 207 to make connecting rod 206 extend out of circular groove 209, and the elastic force of spring 208 can continuously push scraper 200, so that scraper 200 is always in close contact with the inner wall of potassium fluoride preparation reaction vessel 100, ensuring stable effect of scraping crystals.

[0032] The drive assembly includes a drive motor 204 fixedly installed at the top center of the potassium fluoride preparation reaction vessel 100. The output shaft of the drive motor 204 is keyed to a drive rod 205. One end of the drive rod 205 extends into the inner cavity of the potassium fluoride preparation reaction vessel 100 and is rotatably connected to the bottom inner wall of the potassium fluoride preparation reaction vessel 100. Connecting strips 203 are fixedly connected to both sides of the drive rod 205 located inside the potassium fluoride preparation reaction vessel 100. The ends of the connecting strips 203 on the same side are respectively fixedly connected to the surface of the corresponding mounting groove 201. Through the setting of the drive assembly, the drive motor 204 provides stable power. The connection method of the drive rod 205 and the connecting strips 203 can ensure that the power is effectively transmitted to the scraper 200, so that the scraper 200 rotates smoothly and improves the scraping efficiency.

[0033] A contact block 300 is provided in the middle of the rear inner wall of the potassium fluoride preparation reaction vessel 100. Both ends of the contact block 300 are beveled. When the scraper 200 moves to the position of the contact block 300, the contact block 300 pushes the scraper 200 into the mounting groove 201, thus removing crystals from the surface of the scraper 200. When the scraper 200 moves to the position of the contact block 300, the contact block 300 pushes the scraper 200 into the mounting groove 201, and the groove 201 removes crystals from the surface of the scraper 200. Therefore, the contact block 300 can automatically clean the crystals on the surface of the scraper 200, preventing crystal accumulation on the scraper 200 and ensuring that the scraper 200 continuously and efficiently scrapes away crystals from the inner wall of the potassium fluoride preparation reaction vessel 100. Timely cleaning of crystals on the scraper 200 also reduces wear between the scraper 200 and the crystals, extending the service life of the scraper 200.

[0034] A housing 302 is connected to the rear surface of the potassium fluoride preparation reaction vessel 100 and to the corresponding position of the abutment block 300. A connecting plate 301 is slidably connected to the inner cavity of the housing 302. The end of the connecting plate 301 is fixedly connected to the surface of the abutment block 300. A hand-tightening bolt 303 is threaded through the surface of the housing 302. The end of the hand-tightening bolt 303 is threaded through the housing 302 and rotatably connected to the surface of the connecting plate 301. By rotating the hand-tightening bolt 303, the position of the abutment block 300 can be easily adjusted so that the abutment block 300 is retracted into or through the housing 302 to adapt to different working conditions and scraping requirements, thereby improving the applicability of the device.

[0035] The surface of the scraper 200 is coated with a wear-resistant layer 210, which can effectively reduce the wear of the scraper 200 during the process of scraping crystals, extend the service life of the scraper 200, and reduce the maintenance cost and replacement frequency of the equipment.

[0036] The wear-resistant layer 210 is one or more of the following: tungsten carbide-based coating, alumina ceramic, polytetrafluoroethylene composite coating, etc.

[0037] In use, this utility model embodiment first enters the inner cavity of the potassium fluoride preparation reaction vessel 100 through the feed pipe 101; the spring 208 in the circular groove 209 applies a pushing force to the sliding disk 207, causing the connecting rod 206 to extend out of the circular groove 209, thereby pushing the scraper 200 so that the end of the scraper 200 fits tightly against the inner wall of the potassium fluoride preparation reaction vessel 100, so that when the scraper 200 rotates, the crystals attached to the inner wall can be effectively scraped off.

[0038] Start the drive motor 204, and its output shaft drives the drive rod 205 to rotate. The connecting strips 203 on both sides of the drive rod 205 are connected to the mounting groove 201, thereby driving the mounting groove 201 and the scraper 200 to rotate together. During the rotation of the scraper 200, the crystals on the inner wall of the potassium fluoride preparation reaction vessel 100 are scraped off.

[0039] A contact block 300 is provided in the middle of the inner wall of the rear side of the potassium fluoride preparation reaction vessel 100. The two ends of the contact block are beveled. When the scraper 200 rotates to the position of the contact block 300, the contact block 300 will push the scraper 200 into the mounting groove 201. At this time, the groove of the mounting groove 201 will remove the crystals on the surface of the scraper 200, prevent the crystals from accumulating on the scraper 200, and ensure the scraping effect of the scraper 200. Furthermore, by rotating the hand-tightening bolt 303, the connecting plate 301 and the contact block 300 can be moved, thereby adjusting the position of the contact block 300 to adapt to different working requirements.

[0040] After the reaction is complete and the crystals are scraped off, the material flows into the discharge pipe 104 through the discharge trough 102 at the bottom of one side of the potassium fluoride preparation reaction tank 100. The operator can control the discharge of the material by controlling the valve 103 at the end of the discharge pipe 104.

[0041] In summary, in this embodiment of the present invention, the scraper 200 adheres closely to the inner wall of the potassium fluoride preparation reaction vessel 100 under the action of the pushing component, and the driving component drives the scraper 200 to rotate, which can effectively scrape off the crystals attached to the inner wall of the potassium fluoride preparation reaction vessel 100, avoid the crystals from adhering to the inner wall of the potassium fluoride preparation reaction vessel 100, and effectively avoid contaminating the next batch of products.

[0042] The foregoing has shown and described the basic principles of the present invention. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention without departing from the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for preparing potassium fluoride from crude potassium bifluoride, comprising a potassium fluoride preparation reaction tank (100), characterized in that: The top of the potassium fluoride preparation reaction vessel (100) is connected to a feed pipe (101). Both sides of the potassium fluoride preparation reaction vessel (100) are provided with mounting grooves (201). The openings of the two sets of mounting grooves (201) are arranged opposite to each other. Scrapers (200) are inserted into the inner cavities of both sets of mounting grooves (201). On the opposite side of each mounting groove (201), an outward-pushing scraper (200) is provided, so that the end of the scraper (200) contacts the potassium fluoride preparation reaction vessel (100). 00) The inner wall of the potassium fluoride preparation reaction tank (100) is provided with a driving component at the top for simultaneously rotating two sets of shells (302) to drive the scraper (200) to scrape off the crystals attached to the inner wall of the potassium fluoride preparation reaction tank (100). A discharge trough (102) is connected to the bottom of one side of the potassium fluoride preparation reaction tank (100). A discharge pipe (104) is connected to the bottom of the discharge trough. A valve (103) is connected to the end of the discharge pipe (104).

2. The reaction device for preparing potassium fluoride from crude potassium bifluoride according to claim 1, characterized in that: The pushing component includes fixed posts (202) fixedly installed on the upper and lower parts of the opposite side of the two sets of mounting slots (201). Each set of fixed posts (202) has a circular groove (209) inside. A sliding disk (207) is slidably connected to the inner cavity of each set of circular grooves (209). A connecting rod (206) is fixedly connected to one end of each set of sliding disks (207). Each set of connecting rods (206) passes through the corresponding side circular groove (209) and mounting slot (201) in sequence and is fixedly connected to the corresponding position surface of the corresponding side scraper (200). A spring (208) is connected to the other end of each set of sliding disks (207). The other end of each set of springs (208) contacts the inner wall of the circular groove (209). The spring (208) can push the sliding disk (207) to one side to push the connecting rod (206) out of the inner cavity of the circular groove (209).

3. The reaction device for preparing potassium fluoride from crude potassium bifluoride according to claim 2, characterized in that: The drive assembly includes a drive motor (204) fixedly installed at the top center of the potassium fluoride preparation reaction vessel (100). The output shaft of the drive motor (204) is keyed to a drive rod (205). One end of the drive rod (205) extends into the inner cavity of the potassium fluoride preparation reaction vessel (100) and is rotatably connected to the bottom inner wall of the potassium fluoride preparation reaction vessel (100). Connecting strips (203) are fixedly connected to both sides of the drive rod (205) inside the potassium fluoride preparation reaction vessel (100). The ends of the connecting strips (203) on the same side are respectively fixedly connected to the surface of the corresponding side mounting groove (201).

4. The reaction device for preparing potassium fluoride from crude potassium bifluoride according to claim 3, characterized in that: A contact block (300) is provided in the middle of the rear inner wall of the potassium fluoride preparation reaction vessel (100). Both ends of the contact block (300) are beveled. When the scraper (200) moves to the position of the contact block, the contact block (300) can push the scraper (200) into the mounting groove (201), so that the groove of the mounting groove (201) removes the crystals on the surface of the scraper (200).

5. The crude potassium fluoride reaction device for preparing potassium fluoride according to claim 4, characterized in that: The rear surface of the potassium fluoride preparation reaction vessel (100) is connected to a shell (302) at a position corresponding to the abutment block (300). The inner cavity of the shell (302) is slidably connected to a connecting plate (301). The end of the connecting plate (301) is fixedly connected to the surface of the abutment block (300). A hand-tightening bolt (303) is threaded through the surface of the shell (302). The end of the hand-tightening bolt (303) is threaded through the shell (302) and rotatably connected to the surface of the connecting plate (301).

6. The crude potassium fluoride reaction device for preparing potassium fluoride according to claim 5, characterized in that: The surface of the scraper (200) is coated with a wear-resistant layer (210).

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