Inorganic salt production process and equipment

Abstract

The invention relates to the technical field of inorganic salt production, and provides inorganic salt production equipment which comprises a shell, the bottom side of the shell is fixedly connected with a crystal precipitation pool to serve as a place for cooling and precipitating crystals from an inorganic salt solution, and a conveying assembly used for conveying and assisting in draining the inorganic salt crystals is arranged in the shell; two spreading plates for spreading crystals are arranged at the rear end of the top side of the conveying assembly, and the two spreading plates are displaced and reset through a spreading mechanism; the posture of the cylinder body is in an inclined state, and the input end of the cylinder body is fixedly connected with the rear side of the crystal precipitation pool. The integrated process design with the functions of precipitation, collection, airing and discharging is achieved, the inorganic salt crystal production process tends to be rapidly stabilized, the inorganic salt crystals can be rapidly separated, collected, aired and discharged after precipitation, the process that the inorganic salt crystals need to be additionally moved to be treated after precipitation is optimized, and the production efficiency of the inorganic salt crystals is improved. Therefore, the production efficiency of the inorganic salt is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of inorganic salt production, in particular to an inorganic salt production process and equipment. BACKGROUND

[0002] Inorganic salt is a mineral nutrient existing in the body and food, most of which exists in the form of ions in cells and is composed of organic matter and inorganic matter. More than 20 kinds of inorganic salts essential for the human body have been found, accounting for about 4% to 5% of the weight of the human body, of which the content of calcium, phosphorus, potassium, sodium, chlorine, magnesium and sulfur is relatively high; the daily dietary requirement is more than 100 mg, which is called constant element, and some other elements with low content are found by using atomic absorption spectroscopy, neutron activation, plasma emission spectroscopy and other trace analysis methods, such as iron, iodine, copper, zinc, manganese, cobalt, molybdenum, selenium, chromium, nickel, silicon, fluorine and vanadium In the production process of inorganic salt, in order to precipitate inorganic salt crystals from aqueous solution, molten salt or other liquid medium, the solution containing inorganic salt in dissolved state usually needs to be cooled.

[0003] The existing inorganic salt crystal precipitation process needs to be separated and dried after the crystal is precipitated, such as filtration, centrifugal dewatering, air drying and the like, which not only increases the complexity of the equipment and the operation cost, but also needs a certain time to move the inorganic salt crystals to the equipment for performing these processes, resulting in a decrease in the efficiency of inorganic salt production. Therefore, an inorganic salt production process and equipment are needed. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an inorganic salt production process and equipment, which solves the problems of complicated process after the inorganic salt crystals are precipitated and the need for a certain time to move the inorganic salt crystals to the equipment for performing these processes.

[0005] To achieve the above object, the present application is realized by the following technical scheme: An inorganic salt production equipment, comprising: A shell, the bottom side of the shell is fixedly connected with a crystal precipitation pool, which serves as a place for cooling and precipitating inorganic salt crystals, the inside of the shell is provided with a conveying assembly for transporting and assisting in draining inorganic salt crystals, the top side of the conveying assembly is provided with two spreading plates for spreading crystals, and the two spreading plates are displaced and reset by a spreading mechanism. The cylinder is in an inclined state, and the input end of the cylinder is fixedly connected with the rear side of the crystal precipitation tank, the output end of the cylinder is fixedly connected with the top rear end of the shell and is located on the top side of the conveying assembly, the inside of the cylinder is rotationally connected with an auger for conveying the precipitated inorganic salt crystals, the auger is driven by the power assembly and is connected with the conveying assembly through a synchronous wheel and a synchronous belt, and the power assembly drives the unfolding mechanism through a connecting rod.

[0006] Preferably, the conveying assembly comprises two rotating rollers rotationally connected to the inner wall bottom end of the shell, the outer wall of the two rotating rollers is sleeved with a filter belt, the inner side top end of the filter belt is supported by a support frame, the two sides of the support frame are fixedly connected with the shell, the one side of the rear end of the rotating roller is provided with a motor as a driving source, and the other side of the rear end of the rotating roller is fixedly connected with one of the synchronous wheels.

[0007] Preferably, the inner side to the outer side of the filter belt is sequentially composed of nitrile rubber, carbon fiber and non-woven fabric, and has a mesh structure for preventing crystal particles from leaking out and not hindering ventilation.

[0008] Preferably, the unfolding mechanism comprises a sliding frame located at the top rear end of the shell, the bottom side of the sliding frame horizontally slides on the top side of the shell through a sliding rail, the top side of the sliding frame is fixedly connected with a deflection head, the top side of the spreading plate is fixedly connected with an abutting frame, the abutting frame horizontally slides on the top side of the shell through a reset frame, the two sides of the abutting frame are abutted with the two sides of the deflection head through a circular arc protrusion, and one end of the top side of the sliding frame is rotationally connected with one end of the connecting rod.

[0009] Preferably, the reset frame comprises a sliding seat fixedly connected to the top side of the shell, the middle end of the abutting frame is slidingly connected to the inside of the sliding seat, the top end of the side of the abutting frame away from the other side is connected with the inner wall of the sliding seat through an elastic rubber sleeve, and the middle end of the side of the abutting frame away from the other side is connected with the inner wall of the sliding seat through a spring telescopic rod.

[0010] Preferably, the power assembly comprises a turbine and a worm that are engaged with each other, the turbine is fixedly connected to the top end of the auger, the worm is connected to the top rear end of the shell through a frame body, the one side of the worm is fixedly connected with the other synchronous wheel, the other side of the worm is fixedly connected with a rotating disc, and the other end of the connecting rod is rotationally connected to the one side of the outer periphery of the rotating disc.

[0011] Preferably, the rear end of the support frame is provided with a liquid discharge channel for discharging waste liquid, the front end of the support frame is provided with an air inlet for air inlet, a through groove is formed in the top side of the front end of the support frame, an air outlet is formed in the top side of the front end of the shell, and a blocking net is fixedly connected to the bottom side of the air outlet.

[0012] Preferably, the front side of the crystal precipitation tank is fixedly connected with a feeding port for feeding, and the front side of the shell is fixedly connected with a discharging port for discharging.

[0013] Preferably, the inner wall bottom side of the crystal precipitation tank is in an inclined posture, and the bottom side of the crystal precipitation tank is fixedly connected with a cooling liquid flow path pipe to pass cooling liquid inside the cooling liquid flow path pipe to take away heat and achieve cooling work of the bottom side of the inner wall of the crystal precipitation tank.

[0014] An inorganic salt production process, comprising the following steps: Step one, first connect the cooling liquid flow path pipe to the supply pipeline providing circulating cooling liquid, connect the air inlet to the fan providing strong wind, and connect the liquid discharge channel to the pipeline capable of discharging waste liquid; Step two, the inorganic salt solution enters the inside of the crystal precipitation tank through the feeding port, flows uniformly over the bottom side of the crystal precipitation tank, and exchanges heat with the crystal precipitation tank cooled by the cooling liquid flow path pipe, so that the crystals in the solution are precipitated by cooling; Step three, under the action of gravity and the impact of the subsequent solution, the inside of the cylinder is flowed to, the rotating roller driven by the motor transmits power to the worm through the synchronous belt and synchronous pulley, so that the worm rotates; Step four, the worm directly engaged with the turbine synchronously drives the auger connected thereto inside the cylinder to rotate, so that the auger cooperates with the solution entering the inside of the cylinder to transport the solution and the crystals upward, and then the solution and the crystals are transported to the inside of the shell and fall on the surface of the filter belt; Step five, the rotating rotating roller drives the filter belt connected thereto to displace during rotation, so that the filter belt can transport the crystals falling on the surface thereof forward, and the solution falling on the surface penetrates the filter belt to enter the liquid discharge channel at the bottom side to discharge waste liquid; Step six, the rotating worm drives the rotating disc connected thereto to rotate synchronously, so that the eccentric wheel push-pull structure composed of the rotating disc and the connecting rod connected thereto displaces the sliding frame, the displacement head on the sliding frame synchronously displaces, the abutment frame displaces under the guidance of the inclined surfaces on both sides of the displacement head, and the spring expansion rod connected thereto is compressed and resets synchronously, so that the spreading plate connected with the abutment frame moves in the same track, scrapes the crystals falling on the surface of the filter belt, and assists the spreading of the crystals, so that the crystals are in a uniform and flat state when they are displaced to the bottom side of the barrier net; Step seven, when the crystals are displaced to the bottom side of the barrier net, the strong wind entering from the air inlet impacts the filter belt on the top side through the through slot on the support frame, and then passes through the filter belt and the barrier net in turn, and is discharged at the air outlet; Step eight, the filter belt transports the crystals to the end and discharges at the discharging port.

[0015] Working principle: When precipitating inorganic salt crystals through cooling, the coolant flow pipe is first connected to the supply pipe for circulating coolant, the air inlet is connected to the fan for strong airflow, and the drain is connected to the pipe for waste liquid discharge. The inorganic salt solution enters the crystal precipitation tank through the feed inlet. The flow rate is controlled to prevent accumulation inside the crystal precipitation tank, allowing the inorganic salt solution to flow evenly across the bottom of the crystal precipitation tank. Heat exchange occurs through the crystal precipitation tank cooled by the coolant flow pipe, causing the crystals in the solution to precipitate through cooling. Under the impact of gravity and subsequent solution, the crystals flow into the interior of the cylinder. The rotating roller driven by the motor transmits power to the worm gear through the synchronous belt and synchronous pulley, causing the worm gear to rotate and drive the following structures to move in sequence. Driven synchronously by the turbine directly meshing with the worm gear, the auger located inside the cylinder rotates, causing the auger to transport the crystal and solution that enters the cylinder upwards, thereby transporting the solution and crystals to the interior of the shell and onto the surface of the filter belt. As the rotating roller rotates, it synchronously drives the filter belt connected to it to move, so that the filter belt can transport the crystals falling on its surface forward and allow the solution falling on the surface to penetrate the filter belt and enter the drain channel on the bottom side for discharge, thereby discharging the waste liquid. The rotating worm drives the connected turntable to rotate synchronously, causing the eccentric wheel push-pull structure formed by the turntable and its connecting rod to push and pull the sliding frame to move. This causes the offset head on the sliding frame to move synchronously, so that the abutment frame moves under the guidance of the inclined surfaces on both sides of the offset head, compresses the connected spring telescopic rod, and the spring telescopic rod returns to its original position. This causes the spreading plate connected to the abutment frame to move along the same trajectory, scraping the crystals that fall on the surface of the filter belt and assisting them to spread out. This ensures that when the crystals move to the bottom side of the barrier mesh, they are in a uniformly flat state. When the crystals are displaced to the bottom of the barrier mesh, the strong air entering from the air inlet impacts the filter belt on the top side through the slots on the support frame, and passes through the filter belt and barrier mesh in sequence, and is discharged from the air outlet. During this process, the crystals come into contact with the strong air to achieve heat exchange, remove the moisture on the crystals, and prevent the inorganic salt crystals from being overly dispersed by the limiting of the barrier mesh, until the filter belt transports the crystals to the end and discharges them at the outlet.

[0016] This invention provides a process and equipment for the production of inorganic salts. It has the following beneficial effects: 1. The present invention features an integrated process design with functions of precipitation, collection, drying and discharge, which makes the inorganic salt crystal production process faster and more stable. It enables the inorganic salt crystals to be quickly separated, collected and dried after precipitation, and optimizes the process that requires additional moving areas for processing after precipitation, thereby improving the production efficiency of inorganic salts.

[0017] 2. This invention achieves efficient separation between crystals and waste liquid and uniform drying of crystals through the synergistic effect of the filter belt and the spreading plate, with the assistance of the spreading plate. It also ensures the integrity and uniformity of the dried crystals, significantly reducing energy consumption and operational complexity. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram showing the location of the feed inlet of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram showing the position of the filter belt in this invention; Figure 5 This is a schematic diagram of the rotating roller and filter belt of the present invention; Figure 6 This is a schematic diagram of the worm gear connection structure of the present invention; Figure 7 This is a schematic diagram showing the position of the spreading plate of the present invention; Figure 8 This is a schematic diagram of the structure of the offset head of the present invention; Figure 9 This is a schematic diagram of the connection structure of the sliding seat of the present invention.

[0019] The components are as follows: 1. Shell; 2. Crystal precipitation tank; 3. Filter belt; 4. Rotary roller; 5. Support frame; 6. Cylinder; 7. Screwdriver; 8. Turbine; 9. Worm gear; 10. Turntable; 11. Connecting rod; 12. Slide rail; 13. Sliding frame; 14. Offset head; 15. Abutment frame; 16. Spreading plate; 17. Telescopic rubber sleeve; 18. Barrier net; 19. Air inlet; 20. Drainage channel; 21. Discharge port; 22. Motor; 23. Sliding seat; 24. Coolant flow pipe; 25. Feed inlet. Detailed Implementation

[0020] 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.

[0021] Example: As one aspect of this application, embodiments of the present invention provide an inorganic salt production apparatus, comprising: Please see the appendix Figure 1 Appendix Figure 2 and attachedFigure 7 The shell 1 has a crystal precipitation tank 2 fixedly connected to its bottom side as a place for cooling and precipitating crystals from inorganic salt solution. The shell 1 is equipped with a conveying assembly for transporting and assisting in draining inorganic salt crystals. The top rear end of the conveying assembly is equipped with two spreading plates 16 for spreading the crystals. The two spreading plates 16 are displaced and reset by an unfolding mechanism. The crystal precipitation tank 2 is fixedly connected to the front side of a feed inlet 25 for feeding. The shell 1 is fixedly connected to the front side of a discharge outlet 21 for discharging. Please see the appendix Figure 2 and attached Figure 3 The cylinder 6 is tilted, and its input end is fixedly connected to the rear side of the crystal precipitation tank 2. The output end of the cylinder 6 is fixedly connected to the rear end of the top side of the shell 1 and is located on the top side of the conveying assembly. The cylinder 6 is rotatably connected to an auger 7 for conveying the precipitated inorganic salt crystals. The auger 7 is driven by a power assembly and connected to the conveying assembly through a synchronous pulley and synchronous belt. The power assembly drives the unfolding mechanism synchronously through a connecting rod 11. The bottom side of the inner wall of the crystal precipitation tank 2 is tilted. A coolant flow pipe 24 is fixedly connected to the bottom side of the crystal precipitation tank 2 so that coolant flows through the inside of the coolant flow pipe 24 to carry away heat and achieve the cooling of the bottom side of the inner wall of the crystal precipitation tank 2. Specifically, the coolant flow pipe 24 is externally connected to a supply pipe for circulating coolant and is made of copper with good thermal conductivity to quickly exchange heat with the bottom side of the crystal precipitation tank 2, keeping the bottom side of the crystal precipitation tank 2 at a low temperature to meet the conditions for the precipitation of inorganic salt solution crystals. The inorganic salt solution enters the interior of the crystal precipitation tank 2 through the inlet 25, and the flow rate is controlled to prevent accumulation inside the crystal precipitation tank 2, so that the inorganic salt solution can flow evenly across the bottom side of the crystal precipitation tank 2 and exchange heat with the crystal precipitation tank 2 cooled by the coolant flow pipe 24, so that the crystals in the solution are precipitated by cooling. Under the impact of gravity and subsequent solution, they flow into the interior of the cylinder 6. When the auger 7 located inside the cylinder 6 rotates, it transports the crystals and solution into the cylinder 6 upwards, thereby transporting the solution and crystals into the interior of the shell 1 and onto the surface of the filter belt 3.

[0022] Please see the appendix Figure 3 -Appendix Figure 5The conveying assembly includes two rotating rollers 4 rotatably connected to the bottom of the inner wall of the housing 1. The outer wall of the two rotating rollers 4 is fitted with a filter belt 3. The top of the inner side of the filter belt 3 is supported by a support frame 5. Both sides of the support frame 5 are fixedly connected to the housing 1. A motor 22 as a drive source is installed on one side of the rear rotating roller 4. A drain channel 20 is provided at the rear end of the support frame 5 to discharge waste liquid. An air inlet 19 for air intake is installed at the front end of the support frame 5. A through groove is opened on the top side of the front end of the support frame 5. An air outlet is opened at the front end of the top side of the housing 1. A barrier net 18 is fixedly connected to the bottom side of the air outlet. One of the synchronous pulleys is fixedly connected to the other side of the rear rotating roller 4. The inner side to the outer side of the filter belt 3 is made of nitrile rubber, carbon fiber and non-woven fabric in sequence, and has a mesh structure to prevent crystal particles from leaking out without hindering ventilation. Specifically, nitrile rubber is a rubber material with good oil resistance and chemical corrosion resistance. It maintains the transmission of the filter belt 3 and the friction between the rollers 4. Carbon fiber is used to increase the toughness of the filter belt 3. During the rotation of the rollers 4, the filter belt 3 connected to it will be moved synchronously, so that the filter belt 3 can transport the crystals falling on its surface forward and allow the solution falling on the surface to penetrate the filter belt 3 and enter the drain channel 20 on the bottom side for discharge, thereby discharging waste liquid. When the crystals are moved to the bottom side of the barrier net 18, the strong wind entering from the air inlet 19 passes through the through groove on the support frame 5 and impacts the filter belt 3 on the top side, and passes through the filter belt 3 and the barrier net 18 in sequence, and is discharged at the air outlet. During this process, the crystals will come into contact with the strong wind to achieve heat exchange, remove the moisture on the crystals, and prevent the inorganic salt crystals from being excessively dispersed by the limiting of the barrier net 18, until the filter belt 3 transports the crystals to the end and discharges them at the discharge port 21.

[0023] Please see the appendix Figure 7 -Appendix Figure 9 The unfolding mechanism includes a sliding frame 13 located at the rear end of the top side of the housing 1. The bottom side of the sliding frame 13 slides horizontally on the top side of the housing 1 via a slide rail 12. An offset head 14 is fixedly connected to the middle of the top side of the sliding frame 13. An abutment frame 15 is fixedly connected to the top side of the unfolding plate 16. The abutment frame 15 slides horizontally on the top side of the housing 1 via a reset frame. The adjacent sides of the two abutment frames 15 abut against each other with the two sides of the offset head 14 via arc protrusions. One end of the top side of the sliding frame 13 is rotatably connected to one end of the connecting rod 11. The reset frame includes a sliding seat 23 fixedly connected to the top side of the housing 1. The middle end of the abutment frame 15 is slidably connected inside the sliding seat 23. The top ends of the opposite sides of the two abutment frames 15 are connected to the inner wall of the sliding seat 23 via telescopic rubber sleeves 17. The middle ends of the opposite sides of the two abutment frames 15 are connected to the inner wall of the sliding seat 23 via spring telescopic rods. Specifically, when the offset head 14 is displaced, the abutment frame 15 will be displaced under the guidance of the inclined surfaces on both sides of the displaced offset head 14, and the spring telescopic rod connected to it will be compressed. The spring telescopic rod will be reset synchronously, so that the spreading plate 16 connected to the abutment frame 15 will move along the same trajectory, scraping the crystals that fall on the surface of the filter belt 3 and assisting them to spread out. So that when the crystals are displaced to the bottom side of the barrier net 18, they are in a uniformly flat state. During this process, the telescopic rubber sleeve 17 will stretch and compress the sliding opening of the sliding seat 23 to continuously cover the sliding opening and prevent external impurities from entering the interior of the housing 1. Please see the appendix Figure 6 and attached Figure 8 The power assembly includes a turbine 8 and a worm 9 that mesh with each other. The turbine 8 is fixedly connected to the top of the auger 7. The worm 9 is connected to the top of the rear end of the housing 1 through a frame. Another synchronous pulley is fixedly connected to one side of the worm 9. A turntable 10 is fixedly connected to the other side of the worm 9. The other end of the connecting rod 11 is rotatably connected to the outer periphery of one side of the turntable 10. Specifically, the rotating roller 4 driven by the motor 22 transmits power to the worm 9 through the synchronous belt and synchronous pulley, causing the worm 9 to rotate. The rotating worm 9 drives the turntable 10 connected to it to rotate synchronously, causing the eccentric wheel push-pull structure formed by the turntable 10 and its connected connecting rod 11 to push and pull the sliding frame 13 to move, causing the offset head 14 on the sliding frame 13 to move synchronously. The turbine 8, which is directly meshed with the worm 9, synchronously drives the auger 7 located inside the cylinder 6 to rotate.

[0024] Based on the inorganic salt production equipment provided above, as another aspect of this application, an inorganic salt production process includes the following steps: Step 1: First, connect the coolant flow pipe 24 to the supply pipe that provides circulating coolant, connect the air inlet 19 to the fan that provides strong airflow, and connect the drain pipe 20 to the pipe that can discharge waste liquid. Step 2: The inorganic salt solution enters the interior of the crystal precipitation tank 2 through the feed port 25, so that the inorganic salt solution flows evenly over the bottom side of the crystal precipitation tank 2 and exchanges heat with the crystal precipitation tank 2 cooled by the cooling liquid flow pipe 24, so that the crystals in the solution precipitate out by cooling. Step 3: Under the impact of gravity and the subsequent solution, it flows into the interior of the cylinder 6. The rotating roller 4 driven by the motor 22 transmits power to the worm 9 through the synchronous belt and synchronous pulley, causing the worm 9 to rotate. Step 4: The turbine 8, which is directly meshed with the worm gear 9, synchronously drives the auger 7 located inside the cylinder 6 to rotate, so that the auger 7 transports the crystal and solution that has entered the cylinder 6 upward, thereby transporting the solution and crystal to the inside of the shell 1 and onto the surface of the filter belt 3. Step 5: During the rotation of the rotating roller 4, the filter belt 3 connected to it will be moved synchronously, so that the filter belt 3 can transport the crystals falling on its surface forward and allow the solution falling on the surface to penetrate the filter belt 3 and enter the drain channel 20 on the bottom side for discharge, thereby discharging the waste liquid. Step 6: The rotating worm gear 9 drives the turntable 10 connected to it to rotate synchronously, causing the eccentric wheel push-pull structure formed by the turntable 10 and the connecting rod 11 to push and pull the sliding frame 13 to move, causing the offset head 14 on the sliding frame 13 to move synchronously, so that the abutment frame 15 is displaced under the guidance of the inclined surfaces on both sides of the displaced offset head 14, and compresses the spring telescopic rod connected to it, and the spring telescopic rod is reset synchronously, so that the spreading plate 16 connected to the abutment frame 15 moves along the same trajectory, scraping the crystals that fall on the surface of the filter belt 3, assisting them to spread out, so that when the crystals are displaced to the bottom side of the barrier net 18, they are in a uniformly flat state; Step 7: When the crystal is displaced to the bottom of the barrier net 18, the strong wind entering from the air inlet 19 passes through the through groove on the support frame 5 and impacts the filter belt 3 on the top side, and passes through the filter belt 3 and the barrier net 18 in sequence, and is discharged at the air outlet. Step 8: The filter belt 3 transports the crystals to the end, where they are discharged at the outlet 21.

[0025] 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. An inorganic salt production device, characterized in that, include: The shell (1) has a crystal precipitation tank (2) fixedly connected to its bottom side as a place for cooling and precipitating crystals from inorganic salt solution. The shell (1) is equipped with a conveying assembly for transporting and assisting in draining inorganic salt crystals. The rear end of the top side of the conveying assembly is equipped with two spreading plates (16) for spreading the crystals. The two spreading plates (16) are displaced and reset by an unfolding mechanism. The cylinder (6) is tilted and its input end is fixedly connected to the rear side of the crystal precipitation pool (2). The output end of the cylinder (6) is fixedly connected to the rear end of the top side of the shell (1) and is located on the top side of the conveying assembly. The cylinder (6) is rotatably connected to an auger (7) for conveying the precipitated inorganic salt crystals. The auger (7) is driven by a power assembly and connected to the conveying assembly through a synchronous pulley and synchronous belt. The power assembly drives the unfolding mechanism synchronously through a connecting rod (11).

2. The inorganic salt production equipment according to claim 1, characterized in that, The conveying assembly includes two rotating rollers (4) rotatably connected to the bottom of the inner wall of the housing (1). The outer walls of the two rotating rollers (4) are fitted with filter belts (3). The top of the inner side of the filter belts (3) is supported by a support frame (5), and both sides of the support frame (5) are fixedly connected to the housing (1). A motor (22) serving as a drive source is installed on one side of the rear rotating roller (4), and one of the synchronous pulleys is fixedly connected to the other side of the rear rotating roller (4).

3. The inorganic salt production equipment according to claim 2, characterized in that, The filter belt (3) is made of nitrile rubber, carbon fiber and non-woven fabric stacked together from the inner side to the outer side, and has a mesh structure to prevent crystal particles from leaking out without hindering ventilation.

4. The inorganic salt production equipment according to claim 1, characterized in that, The unfolding mechanism includes a sliding frame (13) located at the rear end of the top side of the housing (1). The bottom side of the sliding frame (13) slides horizontally on the top side of the housing (1) via a slide rail (12). An offset head (14) is fixedly connected to the middle of the top side of the sliding frame (13). An abutment frame (15) is fixedly connected to the top side of the unfolding plate (16). The abutment frame (15) slides horizontally on the top side of the housing (1) via a reset frame. The two abutment frames (15) abut against each other on their adjacent sides via an arc protrusion. One end of the top side of the sliding frame (13) is rotatably connected to one end of the connecting rod (11).

5. An inorganic salt production device according to claim 4, characterized in that, The reset frame includes a sliding seat (23) fixedly connected to the top side of the housing (1). The middle end of the abutment frame (15) is slidably connected to the inside of the sliding seat (23). The top ends of the two abutment frames (15) on opposite sides are connected to the inner wall of the sliding seat (23) through telescopic rubber sleeves (17). The middle ends of the two abutment frames (15) on opposite sides are connected to the inner wall of the sliding seat (23) through spring telescopic rods.

6. The inorganic salt production equipment according to claim 1, characterized in that, The power assembly includes a meshing turbine (8) and a worm (9). The turbine (8) is fixedly connected to the top of the auger (7). The worm (9) is connected to the top rear end of the housing (1) via a frame. Another synchronous pulley is fixedly connected to one side of the worm (9). A turntable (10) is fixedly connected to the other side of the worm (9). The other end of the connecting rod (11) is rotatably connected to the outer periphery of one side of the turntable (10).

7. An inorganic salt production device according to claim 2, characterized in that, The rear end of the support frame (5) is provided with a drain channel (20) for discharging waste liquid. The front end of the support frame (5) is provided with an air inlet (19) for air intake. A through groove is opened on the top side of the front end of the support frame (5). An air outlet is opened on the top front end of the housing (1), and a barrier net (18) is fixedly connected to the bottom side of the air outlet.

8. An inorganic salt production device according to claim 1, characterized in that, The front side of the crystal precipitation cell (2) is fixedly connected to a feed inlet (25) for feeding, and the front side of the shell (1) is fixedly connected to a discharge outlet (21) for discharging.

9. An inorganic salt production device according to claim 1, characterized in that, The bottom side of the inner wall of the crystal precipitation pool (2) is inclined. A coolant flow pipe (24) is fixedly connected to the bottom side of the crystal precipitation pool (2) so that the coolant flows through the inside of the coolant flow pipe (24) to carry away the heat and realize the cooling work of the bottom side of the inner wall of the crystal precipitation pool (2).

10. An inorganic salt production process, using an inorganic salt production equipment as described in any one of claims 1 to 9, characterized in that, Includes the following steps: Step 1: First, connect the coolant flow pipe (24) to the supply pipe that provides circulating coolant, connect the air inlet (19) to the fan that provides strong air, and connect the drain pipe (20) to the pipe that can discharge waste liquid. Step 2: The inorganic salt solution enters the interior of the crystal precipitation tank (2) through the feed port (25), so that the inorganic salt solution flows evenly over the bottom side of the crystal precipitation tank (2) and exchanges heat with the crystal precipitation tank (2) cooled by the cooling liquid flow pipe (24), so that the crystals in the solution are precipitated by cooling. Step 3: Under the impact of gravity and subsequent solution, it flows into the interior of the cylinder (6). The rotating roller (4) driven by the motor (22) transmits power to the worm (9) through the synchronous belt and synchronous pulley, causing the worm (9) to rotate. Step 4: The turbine (8) directly meshed with the worm (9) synchronously drives the auger (7) connected to it, which is located inside the cylinder (6), to rotate. The auger (7) transports the crystals and solution that have entered the cylinder (6) upward, so that the solution and crystals are transported to the inside of the shell (1) and fall onto the surface of the filter belt (3). Step 5: During the rotation of the rotating roller (4), the filter belt (3) connected to it will be moved synchronously, so that the filter belt (3) can transport the crystals falling on its surface forward and allow the solution falling on the surface to penetrate the filter belt (3) and enter the drain channel (20) on the bottom side for discharge, thereby discharging the waste liquid. Step 6: The rotating worm (9) drives the turntable (10) connected to it to rotate synchronously, causing the eccentric wheel push-pull structure formed by the turntable (10) and its connected connecting rod (11) to push and pull the sliding frame (13) to move, causing the offset head (14) on the sliding frame (13) to move synchronously, so that the abutting frame (15) is displaced under the guidance of the inclined surfaces on both sides of the displaced offset head (14), and compresses the spring telescopic rod connected to it, and the spring telescopic rod is reset synchronously, so that the spreading plate (16) connected to the abutting frame (15) moves along the same trajectory, scraping the crystals that fall on the surface of the filter belt (3), assisting them to spread out, so that when the crystals are displaced to the bottom side of the barrier net (18), they are in a uniformly flat state; Step 7: When the crystal is displaced to the bottom of the barrier net (18), the strong wind entering from the air inlet (19) impacts the filter belt (3) on the top side through the through groove on the support frame (5), and passes through the filter belt (3) and the barrier net (18) in sequence, and is discharged at the air outlet. Step 8: The filter belt (3) transports the crystals to the end and discharges them at the outlet (21).

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