Water-soluble rock salt brine filtering and drying device for salt making

Abstract

The application relates to a water-soluble rock salt brine filtering and drying device for salt making, belonging to the technical field of filtering and drying devices, which is used for solving the problem that, during heating crystallization, part of the crystals only adhere to the inner wall surface position of a crystallization box, the adhering area is small, and the adhering and precipitating efficiency of salt crystallization is affected; the application utilizes the contraction principle of a telescopic rod to separate the crystallized salt on the telescopic rod to the downward inverted round table cavity, greatly reduces the salt loss in the water vapor in the air, then utilizes an electromagnet to open and close the movable installed flow resistance plate on the salt overflow hole, thereby realizing the discharge of the salt crystallization, protecting the health of the operators, when the filter plate needs to be cleaned or replaced, the filter plate is taken out by cooperating with the limiting block and the handle, the complicated disassembly and assembly are avoided, three groups of filter plates are arranged, the size of the filter grooves on the filter plates gradually decreases from top to bottom, the blockage caused by the large volume of impurities in the brine is avoided, the operation does not need to be cooperated by multiple persons, and the structure is simple and easy to operate.

Description

Technical Field

[0001] This invention relates to the field of filtration and drying devices, and more specifically, to a filtration and drying device for salt production from water-soluble rock salt brine. Background Technology

[0002] As the main raw material for salt production, the purity of brine directly affects the quality and yield of the final salt product. Impurities in brine, such as calcium ions, magnesium ions, and sulfate ions, can easily form insoluble compounds during the salt production process. These compounds adhere to the heating pipes or the inner walls of the equipment, leading to reduced heat transfer efficiency, decreased equipment production capacity, and even affecting the purity of the salt product. Therefore, effective purification of brine is a key step in the salt production process.

[0003] Chinese patent document CN215387663U discloses an industrial waste salt refining and purification device, including a crystallization box. The crystallization box has symmetrically arranged electric heating plates inside. A machine box is fixedly connected to the top of the crystallization box. A first fixing block is fixedly connected to the bottom of the inner wall of the machine box. A second motor is fixedly connected to one side of the first fixing block. A first gear is fixedly connected to the output end of the second motor. A second gear is meshed with the outer side of the first gear. A hollow stirring rod is fixedly connected inside the second gear and is rotatably connected to the machine box. A drive wheel is fixedly connected to the outer side of the hollow stirring rod and above the second gear. Although this device achieves purification and filtration, it has limitations. When the industrial waste salt is heated and crystallized, some crystals only adhere to the inner surface of the crystallization box, resulting in a small adhesion surface and affecting the salt crystallization adhesion and precipitation efficiency.

[0004] Therefore, in order to solve such problems, we propose a filtration and drying device for salt production from water-soluble rock salt brine. Summary of the Invention

[0005] The purpose of this invention is to provide a filtration and drying device for salt production from water-soluble rock salt brine, which aims to solve the problem in the above-mentioned background technology that, during heating and crystallization, some crystals only adhere to the inner wall surface of the crystallization box, resulting in a small adhesion surface and affecting the adhesion and precipitation efficiency of salt crystals.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a filtration and drying device for salt production from water-soluble rock salt brine, comprising a purification structure, the purification structure including a tank body, a circular hole on the outer wall of the tank body, a through hole at the bottom of the tank body, a support fixedly connected to the bottom of the tank body, a heating element fixedly connected to the outer wall of the tank body, a top plate fixedly connected to the top of the tank body, a servo motor fixedly connected to the top of the top plate, a rotating cylinder fixedly connected to the output end of the servo motor, the rotating cylinder penetrating the top plate, an inverted frustum cavity fixedly connected to the rotating cylinder, a connecting rod fixedly connected to the rotating cylinder, a scraper fixedly connected to the side of the connecting rod away from the rotating cylinder, a discharge component fixedly connected to the bottom of the rotating cylinder, a dovetail groove on the rotating cylinder, and a section below the dovetail groove on the rotating cylinder. The device has a chute, with an overflow hole below the chute on the rotating cylinder. A slider is movably connected inside the chute, and a baffle plate is fixedly connected to the slider. An electromagnet is fixedly connected to the top of the baffle plate. A dovetail block is movably connected inside the dovetail groove, and a telescopic rod is fixedly connected to the dovetail block. A side block is fixedly connected to the side of the telescopic rod away from the dovetail block, and a protective component is fixedly connected to the side block away from the telescopic rod. A first support block is fixedly connected to the top of the telescopic rod, and a return spring is fixedly connected to the outer wall of the first support block. A second support block is fixedly connected to the side of the return spring away from the first support block, and the second support block is fixedly connected to the top of the side block. A protective plate is movably connected inside the through hole. A concave block is fixedly connected to the bottom of the tank, and a valve is movably connected inside the concave block. A venting groove is provided on the top plate.

[0007] Preferably, a filter structure is provided on one side of the tank body. The filter structure includes a pad fixedly connected to the outer wall of the tank body, a water pump fixedly connected to the top of the pad, a water pipe fixedly connected to the water pump, a housing fixedly connected to the side of the water pipe away from the tank body, an installation groove on the outer wall of the housing body, a limit groove on the inner wall of the installation groove, a filter plate movably connected in the installation groove, a filter groove on the filter plate, a limit block fixedly connected to one outer wall of the filter plate, a handle fixedly connected to the other outer wall of the filter plate, a cover plate fixedly connected to the top of the housing body, and a feed funnel fixedly connected to the cover plate.

[0008] Preferably, a conveying structure is provided below the tank body. The conveying structure includes a first fixing member, a stepper motor is fixedly connected to one side of the first fixing member, a rotating shaft is fixedly connected to the output end of the stepper motor, an active pulley is fixedly connected to the rotating shaft, a conveyor belt is movably sleeved on the active pulley, a driven pulley is movably sleeved on the side of the conveyor belt away from the active pulley, a fixed rod is fixedly connected to the driven pulley, a second fixing member is fixedly connected to the fixed rod, and a collecting member is movably connected to the top of the conveyor belt.

[0009] Preferably, the bottom of the tank is provided with a support structure, the support structure including a base plate fixedly connected to the bottom of the tank, a support leg fixedly connected to the bottom of the base plate, and a controller fixedly connected to the top of the base plate.

[0010] Preferably, the slider is located in a groove on the rotating cylinder, and the rotating cylinder and the baffle plate are slidably connected to the slider through the groove.

[0011] Preferably, the number of filter plates movably connected to the outer wall of the housing is three, and the size of the filter grooves opened on the filter plates gradually decreases from top to bottom.

[0012] Preferably, the dovetail block is located within the dovetail groove, and the length of the dovetail block is equal to the length of the dovetail groove.

[0013] Preferably, the filter plate is located in the mounting groove, the limiting block is located in the limiting groove, and the housing and the filter plate are slidably connected through the limiting groove and the limiting block.

[0014] Preferably, the water pipe passes through the tank and the shell, and the tank and the shell are fixedly connected by the water pipe. The servo motor, electromagnet, water pump and stepper motor are all electrically connected to the controller.

[0015] Preferably, the length of the reset spring is changed according to the length of the telescopic rod, and the reset spring drives the side block to reset.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention proposes a filtration and drying device for salt production from water-soluble rock salt brine. Utilizing the contraction principle of a telescopic rod, the rod scrapes away surface crystals, causing them to fall into the lower inverted frustum cavity. This significantly increases the adhesion area of ​​the crystalline salt during heating, improving the efficiency of salt crystal deposition. An electromagnet controls the opening and closing of a baffle plate movably mounted on the overflow hole, allowing the salt crystals to be discharged through the overflow hole. Crystallized salt at the bottom of the tank is discharged through a through-hole via the rotation of the discharge component, preventing blockage. The device requires no multiple operators and is simple and easy to operate. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a filtration and drying device for salt production from water-soluble rock salt brine according to the present invention.

[0019] Figure 2 This is a three-dimensional schematic diagram of a filtration and drying device for salt production from water-soluble rock salt brine according to the present invention.

[0020] Figure 3 This is a three-dimensional exploded schematic diagram of the purification structure of a filtration and drying device for making salt from water-soluble rock salt brine according to the present invention.

[0021] Figure 4 This is a three-dimensional schematic diagram of the rotating cylinder of a filtration and drying device for making salt from water-soluble rock salt brine according to the present invention;

[0022] Figure 5This invention relates to a filtration and drying apparatus for salt production from water-soluble rock salt brine. Figure 4 Enlarged view of point A in the middle;

[0023] Figure 6 This is a three-dimensional exploded view of the purification component in a filtration and drying device for producing water-soluble rock salt brine according to the present invention.

[0024] Figure 7 This is a cross-sectional schematic diagram of the tank in a filtration and drying device for producing water-soluble rock salt brine according to the present invention.

[0025] Figure 8 This is a three-dimensional exploded view of the filtration structure in a filtration and drying device for producing salt from water-soluble rock salt brine according to the present invention.

[0026] Figure 9 This invention relates to a filtration and drying apparatus for salt production from water-soluble rock salt brine. Figure 8 Enlarged view of point B in the middle;

[0027] Figure 10 This is a three-dimensional exploded view of the conveying structure in a filtration and drying device for producing salt from water-soluble rock salt brine according to the present invention.

[0028] Legend:

[0029] 1. Purification structure; 11. Tank body; 111. Circular hole; 112. Through hole; 113. Support column; 114. Heating element; 12. Top plate; 121. Servo motor; 122. Rotating cylinder; 123. Inverted frustum cavity; 124. Connecting rod; 125. Scraper; 126. Discharge component; 13. Dovetail groove; 131. Slide groove; 132. Overflow hole; 14. Sliding block; 141. Baffle plate; 142. Electromagnet; 15. Dovetail block; 151. Telescopic rod; 152. Side block; 153. Protective component; 16. First support block; 161. Return spring; 162. Second support block; 17. Protective plate; 171. Concave block; 17 2. Valve; 18. Vent groove; 2. Filter structure; 21. Pad block; 211. Water pump; 212. Water pipe; 22. Housing; 221. Mounting groove; 222. Limiting groove; 23. Filter plate; 231. Filter tank; 232. Limiting block; 233. Handle; 24. Cover plate; 241. Feed funnel; 3. Conveying structure; 31. First fixing component; 311. Stepper motor; 312. Rotating shaft; 32. Driving pulley; 33. Conveyor belt; 331. Driven pulley; 332. Fixing rod; 333. Second fixing component; 34. Collecting component; 4. Support structure; 41. Base plate; 42. Support leg; 43. Controller. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] To address the issue that during heating and crystallization, some crystals only adhere to the inner surface of the crystallization chamber, resulting in limited adhesion and affecting the efficiency of salt crystallization, please refer to [the relevant documentation / reference]. Figures 1-7 The following preferred technical solutions are provided.

[0032] One embodiment of the present invention provides a filtration and drying device for salt production from water-soluble rock salt brine, comprising a purification structure 1, the purification structure 1 including a tank 11, a circular hole 111 on the outer wall of the tank 11, a through hole 112 at the bottom of the tank 11, a support column 113 fixedly connected to the bottom of the tank 11, a heating element 114 fixedly connected to the outer wall of the tank 11, a top plate 12 fixedly connected to the top of the tank 11, and a servo motor 121 fixedly connected to the top of the top plate 12. A rotating cylinder 122 is fixedly connected to the output end of unit 1. The rotating cylinder 122 passes through the top plate 12. A frustum-shaped cavity 123 is fixedly connected to the rotating cylinder 122. A connecting rod 124 is fixedly connected to the rotating cylinder 122. A scraper 125 is fixedly connected to the side of the connecting rod 124 away from the rotating cylinder 122. A discharge component 126 is fixedly connected to the bottom of the rotating cylinder 122. A dovetail groove 13 is formed on the rotating cylinder 122. A sliding groove 131 is formed below the dovetail groove 13 on the rotating cylinder 122. An overflow hole 132 is provided below the upper chute 131. A slider 14 is movably connected inside the chute 131. A baffle plate 141 is fixedly connected to the slider 14. An electromagnet 142 is fixedly connected to the top of the baffle plate 141. A dovetail block 15 is movably connected inside the dovetail groove 13. A telescopic rod 151 is fixedly connected to the dovetail block 15. A side block 152 is fixedly connected to the side of the telescopic rod 151 away from the dovetail block 15. A protective member 153 is fixedly connected to the side of the side block 152 away from the telescopic rod 151. A first support block 16 is fixedly connected to the top of the telescopic rod 151. A return spring 161 is fixedly connected to the outer wall of the first support block 16. A second support block 162 is fixedly connected to the side of the return spring 161 away from the first support block 16. The second support block 162 is fixedly connected to the top of the side block 152. A protective plate 17 is movably connected inside the through hole 112. A concave block 171 is fixedly connected to the bottom of the tank body 11. A valve 172 is movably connected inside the concave block 171. A venting groove 18 is provided on the top plate 12.

[0033] Specifically, the servo motor 121 drives the rotating cylinder 122 to rotate, which in turn drives the inverted frustum cavity 123, connecting rod 124, discharge component 126, and telescopic rod 151 to rotate. Simultaneously, the connecting rod 124 rotates, causing the scraper 125 to move in a circular motion around the rotating cylinder 122. The discharge component 126 discharges the crystallized salt at the bottom of the tank 11 through the through hole 112 to the outside. As the rotating cylinder 122 drives the telescopic rod 151 to rotate, centrifugal force causes the telescopic rod 151 to extend. Water vapor condenses into crystals at high temperatures and adheres to the outer surface of the telescopic rod 151. When the servo motor 121 stops running, the telescopic rod 151 retracts to its initial length under the action of the return spring 161, causing the crystallized salt to fall onto the lower frustum cavity 123. Then, the controller 43 activates the electromagnet 142, which drives the baffle plate 141 to move upward, allowing the crystallized salt on the frustum cavity 123 to be discharged to the outside through the overflow hole 132 and the cavity inside the rotating cylinder 122.

[0034] A filter structure 2 is provided on one side of the tank body 11. The filter structure 2 includes a pad 21 fixedly connected to the outer wall of the tank body 11. A water pump 211 is fixedly connected to the top of the pad 21. A water pipe 212 is fixedly connected to the water pump 211. A housing 22 is fixedly connected to the side of the water pipe 212 away from the tank body 11. An installation groove 221 is provided on the outer wall of the housing 22. A limit groove 222 is provided on the inner wall of the installation groove 221. A filter plate 23 is movably connected in the installation groove 221. A filter groove 231 is provided on the filter plate 23. A limit block 232 is fixedly connected to one outer wall of the filter plate 23. A handle 233 is fixedly connected to the other outer wall of the filter plate 23. A cover plate 24 is fixedly connected to the top of the housing 22. A feed funnel 241 is fixedly connected to the cover plate 24.

[0035] Specifically, the brine to be filtered is poured into the shell 22 through the feed funnel 241, and then three filter plates 23 are used to filter the brine to prevent large impurities in the brine from clogging the filter plates 23. Then, the controller 43 is used to start the water pump 211, which pumps the filtered brine from the bottom of the shell 22 to the tank 11 for purification.

[0036] Below the tank body 11 is a conveying structure 3. The conveying structure 3 includes a first fixing member 31. A stepper motor 311 is fixedly connected to one side of the first fixing member 31. A rotating shaft 312 is fixedly connected to the output end of the stepper motor 311. An active pulley 32 is fixedly connected to the rotating shaft 312. A conveyor belt 33 is movably sleeved on the active pulley 32. A driven pulley 331 is movably sleeved on the side of the conveyor belt 33 away from the active pulley 32. A fixed rod 332 is fixedly connected to the driven pulley 331. A second fixing member 333 is fixedly connected to the fixed rod 332. A collecting member 34 is movably connected to the top of the conveyor belt 33.

[0037] Specifically, the stepper motor 311 drives the rotating shaft 312 to rotate, the rotating shaft 312 drives the active pulley 32 to rotate, and the active pulley 32 drives the driven pulley 331 to rotate through the transmission of the conveyor belt 33, thereby realizing the conveying of the collection item 34.

[0038] The bottom of the tank 11 is provided with a support structure 4, which includes a bottom plate 41 fixedly connected to the bottom of the tank 11, a support leg 42 fixedly connected to the bottom of the bottom plate 41, and a controller 43 fixedly connected to the top of the bottom plate 41.

[0039] Specifically, the support legs 42 are used to fix and support the overall device, improving the stability of the structure. Then, the display controller 43 is used to control the servo motor 121, electromagnet 142, water pump 211 and stepper motor 311 to ensure the normal operation of the overall device.

[0040] The slider 14 is located in the groove 131 opened on the rotating cylinder 122, and the rotating cylinder 122 and the baffle plate 141 are slidably connected to the slider 14 through the groove 131.

[0041] Furthermore, in order to enhance the stability of the equipment and reduce the workload of workers, such as Figures 8-10 As shown, the following preferred technical solutions are provided.

[0042] The number of filter plates 23 movably connected to the outer wall of the housing 22 is three, and the size of the filter grooves 231 opened on the filter plates 23 gradually decreases from top to bottom.

[0043] The dovetail block 15 is located inside the dovetail groove 13, and the length of the dovetail block 15 is equal to the length of the dovetail groove 13.

[0044] The filter plate 23 is located in the mounting groove 221, the limiting block 232 is located in the limiting groove 222, and the housing 22 and the filter plate 23 are slidably connected through the limiting groove 222 and the limiting block 232.

[0045] Water pipe 212 passes through tank 11 and shell 22, and tank 11 and shell 22 are fixedly connected by water pipe 212. Servo motor 121, electromagnet 142, water pump 211 and stepper motor 311 are all electrically connected to controller 43.

[0046] The length of the return spring 161 is changed according to the length of the telescopic rod 151, and the return spring 161 drives the side block 152 to reset.

[0047] Working principle: First, the brine to be filtered is poured into the shell 22 through the feed funnel 241. Then, three filter plates 23 are used to filter the brine to prevent large impurities in the brine from clogging the filter plates 23. Then, the controller 43 is used to start the water pump 211, which pumps the filtered brine from the bottom of the shell 22 to the tank 11 for the subsequent purification process. After the brine is pumped to the tank 11, the stepper motor 311 is started to drive the rotating shaft 312 to rotate. The rotating shaft 312 drives... The active pulley 32 rotates, and the active pulley 32 drives the driven pulley 331 to rotate through the transmission of the conveyor belt 33, thereby realizing the conveying of the collection item 34. This moves the collection item 34 to directly below the through hole 112 and the rotating cylinder 122. Then, the servo motor 121 and the heating element 114 are started. The heating element 114 needs to continuously maintain the high temperature inside the tank 11. The servo motor 121 drives the rotating cylinder 122 to rotate, so that the rotating cylinder 122 drives the inverted frustum cavity. 123, connecting rod 124, discharge component 126, and telescopic rod 151 rotate. While the connecting rod 124 rotates, it drives the scraper 125 to move in a circular motion around the rotating cylinder 122. The discharge component 126 discharges the crystallized salt at the bottom of the tank 11 through the through hole 112 to the outside. As the rotating cylinder 122 drives the telescopic rod 151 to rotate, centrifugal force causes the telescopic rod 151 to extend. Water vapor condenses at high temperatures, forming crystals that adhere to the outer surface of the telescopic rod 151. When the servo motor 121 stops running, the telescopic rod 151 retracts to its initial length under the elastic force of the return spring 161, causing the crystallized salt to fall onto the lower frustum cavity 123. Then, the controller 43 activates the electromagnet 142, which drives the baffle plate 141 to move upward, causing the crystallized salt on the frustum cavity 123 to be discharged to the outside through the overflow hole 132 and the cavity inside the rotating cylinder 122, falling into the collection piece 34 at the top of the conveyor belt 33.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filtration and drying device for salt production from water-soluble rock salt brine, comprising a purification structure (1), characterized in that: The purification structure (1) includes a tank (11), a round hole (111) is provided on the outer wall of the tank (11), a through hole (112) is provided at the bottom of the tank (11), a support column (113) is fixedly connected to the bottom of the tank (11), a heating element (114) is fixedly connected to the outer wall of the tank (11), and a top plate (12) is fixedly connected to the top of the tank (11). A servo motor (121) is fixedly connected to the top of the top plate (12). A rotating cylinder (122) is fixedly connected to the output end of the servo motor (121). The rotating cylinder (122) passes through the top plate (12). An inverted frustum cavity (123) is fixedly connected to the rotating cylinder (122). A connecting rod (124) is fixedly connected to the rotating cylinder (122). A scraper (125) is fixedly connected to the side of the connecting rod (124) away from the rotating cylinder (122). A discharge component (125) is fixedly connected to the bottom of the rotating cylinder (122). 26) A dovetail groove (13) is provided on the rotating cylinder (122). A sliding groove (131) is provided below the dovetail groove (13) on the rotating cylinder (122). An overflow hole (132) is provided below the sliding groove (131) on the rotating cylinder (122). A slider (14) is movably connected in the sliding groove (131). A baffle plate (141) is fixedly connected on the slider (14). An electromagnet (142) is fixedly connected to the top of the baffle plate (141). A dovetail block (15) is movably connected in the dovetail groove (13). A telescopic rod (151) is fixedly connected to the dovetail block (15). A side block (152) is fixedly connected to the side of the telescopic rod (151) away from the dovetail block (15). A protective piece (153) is fixedly connected to the side of the side block (152) away from the telescopic rod (151). A first support block (16) is fixedly connected to the top of the telescopic rod (151). A return spring (161) is fixedly connected to the outer wall of the first support block (16). A second support block (163) is fixedly connected to the side of the return spring (161) away from the first support block (16). Support block (162), second support block (162) is fixedly connected to the top of side block (152), guard plate (17) is movably connected in through hole (112), concave block (171) is fixedly connected to the bottom of tank (11), valve (172) is movably connected in concave block (171), and ventilation groove (18) is opened on top plate (12); the length of the reset spring (161) is changed according to the length of telescopic rod (151), and the reset spring (161) drives the side block (152) to reset.

2. The filtration and drying device for salt production from water-soluble rock salt brine according to claim 1, characterized in that: A filter structure (2) is provided on one side of the tank (11). The filter structure (2) includes a pad (21) fixedly connected to the outer wall of the tank (11). A water pump (211) is fixedly connected to the top of the pad (21). A water pipe (212) is fixedly connected to the water pump (211). A shell (22) is fixedly connected to the side of the water pipe (212) away from the tank (11). An installation groove (221) is provided on the outer wall of the shell (22). A limit groove (222) is provided on the inner wall of the installation groove (221). A filter plate (23) is movably connected in the installation groove (221). A filter groove (231) is provided on the filter plate (23). A limit block (232) is fixedly connected to one side of the outer wall of the filter plate (23). A handle (233) is fixedly connected to the other side of the outer wall of the filter plate (23). A cover plate (24) is fixedly connected to the top of the shell (22). A feed funnel (241) is fixedly connected to the cover plate (24).

3. The filtration and drying device for salt production from water-soluble rock salt brine according to claim 1, characterized in that: The tank (11) is provided with a conveying structure (3) below it. The conveying structure (3) includes a first fixing member (31). A stepper motor (311) is fixedly connected to one side of the first fixing member (31). A rotating shaft (312) is fixedly connected to the output end of the stepper motor (311). An active pulley (32) is fixedly connected to the rotating shaft (312). A conveyor belt (33) is movably sleeved on the active pulley (32). A driven pulley (331) is movably sleeved on the side of the conveyor belt (33) away from the active pulley (32). A fixed rod (332) is fixedly connected to the driven pulley (331). A second fixing member (333) is fixedly connected to the fixed rod (332). A collecting member (34) is movably connected to the top of the conveyor belt (33).

4. The filtration and drying device for salt production from water-soluble rock salt brine according to claim 1, characterized in that: The bottom of the tank (11) is provided with a support structure (4), which includes a bottom plate (41) fixedly connected to the bottom of the tank (11), a support leg (42) fixedly connected to the bottom of the bottom plate (41), and a controller (43) fixedly connected to the top of the bottom plate (41).

5. A filtration and drying device for salt production from water-soluble rock salt brine according to claim 1, characterized in that: The slider (14) is located in the groove (131) opened on the rotating cylinder (122), and the rotating cylinder (122) and the baffle plate (141) are slidably connected to the slider (14) through the groove (131).

6. A filtration and drying device for salt production from water-soluble rock salt brine according to claim 2, characterized in that: The number of filter plates (23) movably connected on the outer wall of the housing (22) is three, and the size of the filter grooves (231) opened on the filter plates (23) gradually decreases from top to bottom.

7. A filtration and drying device for salt production from water-soluble rock salt brine according to claim 1, characterized in that: The dovetail block (15) is located inside the dovetail groove (13), and the length of the dovetail block (15) is equal to the length of the dovetail groove (13).

8. A filtration and drying device for salt production from water-soluble rock salt brine according to claim 2, characterized in that: The filter plate (23) is located in the mounting groove (221), the limiting block (232) is located in the limiting groove (222), and the housing (22) and the filter plate (23) are slidably connected through the limiting groove (222) and the limiting block (232).

9. A filtration and drying device for salt production from water-soluble rock salt brine according to claim 2, characterized in that: The water pipe (212) passes through the tank (11) and the shell (22), and the tank (11) and the shell (22) are fixedly connected by the water pipe (212). The servo motor (121), electromagnet (142), water pump (211) and stepper motor (311) are all electrically connected to the controller (43).

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