Efficient treatment device for industrial salt production wastewater

Abstract

The invention discloses an efficient treatment device for industrial salt production wastewater, and relates to the technical field of wastewater treatment, and the efficient treatment device is characterized by comprising a tank body and a flow guide mechanism; the upper end of the tank body is communicated with a feed pipe, the lower end of the tank body is provided with a discharge port, and the tank body is fixedly connected with a heating jacket; the flow guide mechanism is arranged on the tank body and comprises a vertical shaft, a disc, a cross arm, a flow guide spiral sheet, a limiting fence, a liquid collecting ring, a first filter screen and a drainage pipe; wastewater is fed into the tank body through the feeding pipe and can only flow downwards and spirally along the flow guide spiral piece, so that the retention time of the wastewater in the tank body is prolonged, the wastewater can be fully heated by the heating jacket, water is evaporated, the wastewater is supersaturated, and crystals are separated out; the waste water after crystals are separated out can penetrate through the first filter screen to flow into the liquid collecting ring and is finally discharged through the water discharging pipe, the waste water can be continuously evaporated and crystallized, and the waste water treatment efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and more specifically, it relates to an efficient treatment device for industrial salt production wastewater. Background Art

[0002] Industrial salt is a chemical raw material widely used in industrial production. Its main component is sodium chloride (NaCl). However, compared with edible salt, its purity and impurity content are different. Industrial salt is usually in the form of white crystals or powder, with a salty taste and stable chemical properties. It plays an important role in many industrial fields. For example, in the chemical industry, it can be used to produce important chemical products such as soda ash, caustic soda, and chlorine; in the light industry, it can be used in processes such as leather making, cloth dyeing, and soap manufacturing; in the metallurgical industry, it can be used as a flux for ores. In addition, industrial salt can also be used for road deicing, concrete antifreeze in the construction industry, etc. However, since industrial salt may contain harmful impurities such as nitrites, it must never be used in food processing, otherwise it will cause serious harm to human health.

[0003] The production process of industrial salt involves various chemical reactions and physical processes, which will produce a large amount of liquid by-products. For example, in the processes of salt refining, purification, or chemical synthesis, in order to remove impurities or adjust reaction conditions, a large amount of water is used as a solvent, detergent, or reaction medium. After use, this water will carry salts, chemical residues, or other impurities, and finally form wastewater. In addition, equipment cleaning, pipeline flushing, and accidental emissions during the production process will also generate wastewater. These wastewaters have complex compositions, containing high concentrations of pollutants such as salts, organic matters, and heavy metal ions. If directly discharged without treatment, they will cause serious pollution to the environment, so effective collection and treatment are required.

[0004] Evaporation crystallization is one of the common methods for treating high-salt wastewater. However, most of the existing ones use a tank to heat and crystallize a certain amount of wastewater. After the wastewater in the tank is processed, the next batch of wastewater is injected into the tank, resulting in poor continuity of crystallization. Moreover, each time the wastewater in the tank is heated and crystallized, it takes a long time, and the efficiency of evaporation crystallization is low. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide an efficient treatment device for industrial salt production wastewater.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An efficient treatment device for industrial salt production wastewater, comprising a tank body, a pretreatment mechanism, and a diversion mechanism;

[0007] The upper end of the tank body is communicated with a feed pipe, the lower end of the tank body is provided with a discharge port, the tank body is fixedly connected with a heating jacket, and the heating jacket is communicated with a medium inlet pipe and a medium discharge pipe;

[0008] The pretreatment mechanism is arranged on the tank body, and the pretreatment mechanism is used for filtering solid impurities in the wastewater;

[0009] The flow guiding mechanism is arranged on the tank body, and the flow guiding mechanism is used for guiding the flow of the wastewater. The flow guiding mechanism includes a vertical shaft, a disc, a cross arm, a flow guiding spiral blade, a limiting bar, a liquid collecting ring, a first filter screen, a drain pipe and a scraping component. The vertical shaft is rotatably connected with the tank body, a disc is rotatably connected to the vertical shaft, a plurality of cross arms are fixedly connected to the vertical shaft, and a plurality of the cross arms are fixedly connected with the flow guiding spiral blade. The flow guiding spiral blade is in frictional contact with the inner side wall of the tank body, a limiting bar is fixedly connected to the flow guiding spiral blade, a liquid collecting ring is fixedly connected to the inner side wall of the lower end of the tank body, a first filter screen is fixedly connected to the open end of the liquid collecting ring, a drain pipe is fixedly connected to the tank body, and one end of the drain pipe is communicated with the chamber of the liquid collecting ring;

[0010] The scraping component is connected with the vertical shaft, and the scraping component is used for scraping crystals on the inner wall of the tank body.

[0011] A further technical solution of the present application: The scraping component includes a frame, a motor and a scraping plate. The frame is fixedly connected with the tank body, a motor is installed on the frame, the output shaft of the motor is connected with one end of the vertical shaft through a coupling, a plurality of scraping plates are fixedly connected to the vertical shaft, and a plurality of the scraping plates are in frictional contact with the inner wall of the tank body and are in frictional contact with the first filter screen.

[0012] A further technical solution of the present application: A plurality of exhaust holes are opened at the upper end of the tank body.

[0013] A further technical solution of the present application: A baffle is fixedly connected to the lower end of the disc, and the baffle is rotatably connected with the vertical shaft.

[0014] A further technical solution of the present application: The pretreatment mechanism includes a filter disc, a second filter screen and a support rod. The filter disc is sleeved on the disc, a second filter screen is fixedly connected between the filter disc and the disc, and a plurality of support rods are fixedly connected between the filter disc and the disc. A plurality of the support rods are all located below the second filter screen.

[0015] A further technical solution of the present application: The pretreatment mechanism further includes a solid collecting ring, a toothed ring and a conveying component. The inner ring of the solid collecting ring is fixedly connected with the filter disc, the outer ring of the solid collecting ring is fixedly connected with the inner side wall of the tank body, and a toothed ring is fixedly connected to the inner side wall of the tank body;

[0016] A plurality of the conveying components are provided, and the plurality of conveying components are all connected to the vertical shaft. The plurality of conveying components are all used for conveying the solid impurities filtered out by the second filter screen into the solid collection ring. Each conveying component includes a suspension arm, a conveying pipe, a rotating sleeve, a conveying shaft, a conveying spiral blade and a gear. The suspension arm is fixedly connected to the vertical shaft. A conveying pipe is fixedly connected to the suspension arm. The conveying pipe is in frictional contact with the second filter screen. A collection port is formed in the conveying pipe, and the collection port is located above the second filter screen. A plurality of rotating sleeves are fixedly connected inside the conveying pipe, and the plurality of rotating sleeves are all rotatably connected to the conveying shaft. A conveying spiral blade is fixedly connected to the conveying shaft. One end of the conveying shaft is fixedly connected to a gear, and the gear is meshed with a toothed ring.

[0017] A further technical solution of the present application: A slag discharge pipe is fixedly connected to the tank body, and one end of the slag discharge pipe is communicated with the chamber of the solid collection ring.

[0018] A further technical solution of the present application: A push plate is fixedly connected to each of the conveying pipes.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The wastewater is sent into the tank body through the feed pipe. The wastewater can only flow downward in a spiral along the guide spiral blade, thereby prolonging the retention time of the wastewater in the tank body. The wastewater can be fully heated by the heating jacket and the water is evaporated, so that the wastewater becomes supersaturated and crystals are precipitated. The wastewater after crystal precipitation will pass through the first filter screen and flow into the liquid collection ring, and finally be discharged through the drain pipe. The present application can continuously perform evaporation crystallization on the wastewater, with higher evaporation crystallization efficiency and higher wastewater treatment efficiency;

[0021] 2. The vertical shaft can drive the guide spiral blade and a plurality of scraping plates to rotate. The rotating guide spiral blade can scrape the crystals on the inner wall of the tank body and push the crystals to the bottom of the tank body. The rotating plurality of scraping plates can push the crystals at the bottom of the tank body, and the crystals cannot pass through the first filter screen. Finally, the crystals will be discharged through the discharge port, thereby collecting the precipitated crystals;

[0022] 3. The wastewater in the feed pipe will fall onto the filter disc. The wastewater flows along the filter disc to the second filter screen. The wastewater after being filtered by the second filter screen will fall onto the dish. The second filter screen can filter the solid impurities in the wastewater to prevent the solid impurities from falling onto the guide spiral blade;

[0023] 4. The conveying spiral blade can convey the solid impurities accumulated at the collection port into the solid collection ring, thereby cleaning and collecting the solid impurities on the second filter screen, keeping the second filter screen unblocked, and preventing the wastewater treatment efficiency from being reduced due to blockage of the second filter screen.

[0024] The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and implement it in accordance with the content of the specification, the following will describe in detail with reference to the preferred embodiments of the present invention and the accompanying drawings. The specific implementation manners of the present invention are given in detail by the following embodiments and their accompanying drawings. Description of the Drawings

[0025] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0026] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0027] Figure 2 is a cross-sectional view of the tank body of an embodiment of the present invention;

[0028] Figure 3 is a cross-sectional view of the disc of an embodiment of the present invention;

[0029] Figure 4 is a cross-sectional view of the liquid collection ring of an embodiment of the present invention;

[0030] Figure 5 is a schematic diagram of the structure of the conveying component of an embodiment of the present invention;

[0031] Figure 6 is a schematic diagram of the structure of the pretreatment mechanism of an embodiment of the present invention;

[0032] Figure 7 is a cross-sectional view of the conveying pipe of an embodiment of the present invention.

[0033] In the figure: 1, tank body; 2, feed pipe; 3, discharge port; 4, heating jacket; 401, medium inlet pipe; 402, medium discharge pipe; 5, vertical shaft; 6, disc; 7, cross arm; 8, guide spiral blade; 9, limit bar; 10, liquid collection ring; 11, first filter screen; 12, drain pipe; 13, frame; 14, motor; 15, scraper; 16, exhaust hole; 17, baffle; 18, filter disc; 19, second filter screen; 20, support rod; 21, solid collection ring; 22, toothed ring; 23, suspension arm; 24, conveying pipe; 25, collection port; 26, rotating sleeve; 27, conveying shaft; 28, conveying spiral blade; 29, gear; 30, slag discharge pipe; 31, push plate. Detailed Embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] In the description of the embodiments of the present invention, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the invention product is usually placed during use, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0036] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0037] Refer to Figures 1 to 7 , in an embodiment of the present application, a high-efficiency treatment device for industrial salt production wastewater includes a tank body 1, a pretreatment mechanism, and a diversion mechanism;

[0038] The upper end of the tank body 1 is communicated with a feed pipe 2. As Figure 2 , the wastewater is sent into the tank body 1 through the feed pipe 2. The lower end of the tank body 1 is provided with a discharge port 3. A heating jacket 4 is fixedly connected to the tank body 1. A medium inlet pipe 401 and a medium discharge pipe 402 are communicated with the heating jacket 4. As Figure 2 , the heating medium enters the heating jacket 4 through the medium inlet pipe 401, and after heating the tank body 1, the heating medium is discharged through the medium discharge pipe 402;

[0039] The pretreatment mechanism is arranged on the tank body 1, and the pretreatment mechanism is used to filter solid impurities in the wastewater;

[0040] The diversion mechanism is arranged on the tank body 1 and is used to guide the flow of wastewater. The diversion mechanism includes a vertical shaft 5, a disc 6, a cross arm 7, a diversion spiral blade 8, a limiting bar 9, a liquid collection ring 10, a first filter screen 11, a drain pipe 12 and a scraping component. The vertical shaft 5 is rotatably connected to the tank body 1, and a disc 6 is rotatably connected to the vertical shaft 5. A plurality of cross arms 7 are fixedly connected to the vertical shaft 5, and all the plurality of cross arms 7 are fixedly connected to the diversion spiral blade 8. As Figure 2 , the vertical shaft 5 supports the diversion spiral blade 8 through a plurality of cross arms 7. The diversion spiral blade 8 is in frictional contact with the inner side wall of the tank body 1. A limiting bar 9 is fixedly connected to the diversion spiral blade 8. A liquid collection ring 10 is fixedly connected to the inner side wall at the lower end of the tank body 1. The open end of the liquid collection ring 10 is fixedly connected to a first filter screen 11. A drain pipe 12 is fixedly connected to the tank body 1, and one end of the drain pipe 12 communicates with the chamber of the liquid collection ring 10;

[0041] As Figures 2 to 4 , the wastewater is fed into the tank body 1 through the feed pipe 2. The wastewater entering the tank body 1 will fall onto the disc 6. The wastewater flows along the disc 6 towards its edge. The wastewater falls from the edge of the disc 6 onto the diversion spiral blade 8. Under the interception of the limiting bar 9, the wastewater can only flow downward in a spiral along the diversion spiral blade 8, so as to extend the retention time of the wastewater in the tank body 1. The wastewater can be fully heated by the heating jacket 4 and the water is evaporated, so that the wastewater becomes supersaturated and crystals are precipitated. The crystals follow the wastewater and flow to the bottom of the tank body 1. The wastewater after crystal precipitation will pass through the first filter screen 11 and flow into the liquid collection ring 10, and finally be discharged through the drain pipe 12. Compared with the prior art, the present application can continuously evaporate and crystallize the wastewater, with higher evaporation and crystallization efficiency and higher wastewater treatment efficiency.

[0042] The scraping component is connected to the vertical shaft 5 and is used to scrape the crystals on the inner wall of the tank body 1.

[0043] As a preferred embodiment of the present application, the scraping component includes a frame 13, a motor 14 and a scraper 15. The frame 13 is fixedly connected to the tank body 1. A motor 14 is installed on the frame 13. The output shaft of the motor 14 is connected to one end of the vertical shaft 5 through a coupling. The motor 14 can drive the vertical shaft 5 to rotate. A plurality of scrapers 15 are fixedly connected to the vertical shaft 5. All the plurality of scrapers 15 are in frictional contact with the inner wall of the tank body 1, and all the plurality of scrapers 15 are in frictional contact with the first filter screen 11;

[0044] As Figure 2 and Figure 4, the vertical shaft 5 can drive the diversion spiral blades 8 and multiple scraping plates 15 to rotate. The rotating diversion spiral blades 8 can scrape the crystals on the inner wall of the tank body 1 and push the crystals towards the bottom of the tank body 1. The rotating multiple scraping plates 15 can then push the crystals at the bottom of the tank body 1, and the crystals cannot pass through the first filter screen 11. Eventually, the crystals will be discharged through the discharge port 3, thereby collecting the precipitated crystals.

[0045] As a preferred embodiment of the present application, a plurality of exhaust holes 16 are opened at the upper end of the tank body 1, and water vapor is discharged through the plurality of exhaust holes 16.

[0046] As a preferred embodiment of the present application, a baffle 17 is fixedly connected to the lower end of the disc 6, and the baffle 17 is rotatably connected to the vertical shaft 5, as Figure 3 , the opening at the lower end of the disc 6 is blocked by the baffle 17 to prevent water vapor from entering and affecting the discharge of water vapor.

[0047] As a preferred embodiment of the present application, the pretreatment mechanism includes a filter disc 18, a second filter screen 19, and a support rod 20. The filter disc 18 is sleeved on the disc 6, a second filter screen 19 is fixedly connected between the filter disc 18 and the disc 6, and a plurality of support rods 20 are fixedly connected between the filter disc 18 and the disc 6. All of the plurality of support rods 20 are located below the second filter screen 19;

[0048] As Figure 5 and Figure 6 , the filter disc 18 and the disc 6 are connected by a plurality of support rods 20. The edge of the filter disc 18 is higher than the center. The wastewater in the feed pipe 2 will fall onto the filter disc 18, and the wastewater will flow along the filter disc 18 to the second filter screen 19. The wastewater filtered by the second filter screen 19 will then fall onto the disc 6. The second filter screen 19 can filter the solid impurities in the wastewater to prevent the solid impurities from falling onto the diversion spiral blades 8.

[0049] As a preferred embodiment of the present application, the pretreatment mechanism further includes a solid collection ring 21, a gear ring 22, and a conveying component. The inner ring of the solid collection ring 21 is fixedly connected to the filter disc 18, and the outer ring of the solid collection ring 21 is fixedly connected to the inner side wall of the tank body 1, as Figure 3 and Figure 6 , the solid collection ring 21, the filter disc 18, the plurality of support rods 20, and the disc 6 are connected as a whole, and a gear ring 22 is fixedly connected to the inner side wall of the tank body 1;

[0050] A plurality of the conveying components are provided, and the plurality of the conveying components are all connected to the vertical shaft 5. The plurality of the conveying components are all used for conveying the solid impurities filtered out by the second filter screen 19 into the solid collection ring 21. Each of the conveying components includes a suspension arm 23, a conveying pipe 24, a rotating sleeve 26, a conveying shaft 27, a conveying spiral blade 28 and a gear 29. The suspension arm 23 is fixedly connected to the vertical shaft 5. A conveying pipe 24 is fixedly connected to the suspension arm 23. The conveying pipe 24 is in frictional contact with the second filter screen 19. A collection port 25 is formed in the conveying pipe 24. The collection port 25 is located above the second filter screen 19. A plurality of rotating sleeves 26 are fixedly connected to the inside of the conveying pipe 24. The plurality of rotating sleeves 26 are all rotatably connected to the conveying shaft 27. A conveying spiral blade 28 is fixedly connected to the conveying shaft 27. One end of the conveying shaft 27 is fixedly connected to a gear 29. The gear 29 is meshed with a toothed ring 22;

[0051] As Figures 5 to 7 , the vertical shaft 5 can drive the conveying pipe 24 to rotate through the suspension arm 23. During the rotation of the conveying pipe 24, the collection port 25 will push the solid impurities on the second filter screen 19, so that the solid impurities accumulate at the collection port 25;

[0052] The gear 29 rotates around the axis of the vertical shaft 5 following the conveying pipe 24, and under the action of the toothed ring 22, the gear 29 will rotate self - sufficiently, thereby driving the conveying shaft 27 to rotate. The conveying shaft 27 drives the conveying spiral blade 28 to rotate, and the conveying spiral blade 28 can convey the solid impurities accumulated at the collection port 25 into the solid collection ring 21, thereby cleaning and collecting the solid impurities on the second filter screen 19, keeping the second filter screen 19 unblocked, and avoiding the reduction of the wastewater treatment efficiency caused by the blockage of the second filter screen 19.

[0053] As a preferred embodiment of the present application, a slag discharge pipe 30 is fixedly connected to the tank body 1. One end of the slag discharge pipe 30 is communicated with the chamber of the solid collection ring 21.

[0054] As a preferred embodiment of the present application, a push plate 31 is fixedly connected to each of the conveying pipes 24. As Figure 5 and Figure 6 , the conveying pipe 24 will drive the push plate 31 to rotate, and the push plate 31 can push the solid impurities in the solid collection ring 21 into the slag discharge pipe 30, thereby discharging the solid impurities in the solid collection ring 21.

[0055] Working principle: Wastewater is sent into the tank body 1 through the feed pipe 2. The wastewater entering the tank body 1 will fall onto the disc 6. The wastewater flows along the disc 6 towards its edge. The wastewater falls from the edge of the disc 6 onto the guide spiral blade 8. Under the interception of the limit bar 9, the wastewater can only flow downward in a spiral along the guide spiral blade 8, thereby prolonging the retention time of the wastewater in the tank body 1. The wastewater can be fully heated by the heating jacket 4 and the moisture is evaporated, making the wastewater supersaturated and crystals precipitate. The crystals follow the wastewater and flow to the bottom of the tank body 1. The wastewater after crystal precipitation will pass through the first filter screen 11 and flow into the liquid collection ring 10, and finally be discharged through the drain pipe 12;

[0056] The vertical shaft 5 can drive the guide spiral blade 8 and multiple scraping plates 15 to rotate. The rotating guide spiral blade 8 can scrape the crystals on the inner wall of the tank body 1 and push the crystals towards the bottom of the tank body 1. The rotating multiple scraping plates 15 can then push the crystals at the bottom of the tank body 1, and the crystals cannot pass through the first filter screen 11. Finally, the crystals will be discharged through the discharge port 3.

[0057] It should be noted that: The electrical components appearing in this application document are all electrically connected to the external main controller and 220V mains power. And the main controller can be a processor, an alarm module, a drive module, etc., which play a role in controlling conventional known devices. The standard parts used in this application document can all be purchased from the market. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. in the existing technology for connection. And the machinery, parts and equipment all adopt conventional models in the existing technology. Coupled with the circuit connection adopting the conventional connection method in the existing technology, no specific description will be made here.

[0058] The above is only the preferred implementation manner of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0059] In addition, it should be understood that although this specification is described according to the implementation manners, not every implementation manner only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. An efficient treatment device for industrial salt production wastewater, characterized in that, It includes a tank body (1), a pretreatment mechanism and a diversion mechanism; The upper end of the tank body (1) is connected to a feed pipe (2), the lower end of the tank body (1) is provided with a discharge port (3), the tank body (1) is fixedly connected with a heating jacket (4), and the heating jacket (4) is connected to a medium inlet pipe (401) and a medium discharge pipe (402); The pretreatment mechanism is arranged on the tank body (1), and the pretreatment mechanism is used for filtering solid impurities in the wastewater; The diversion mechanism is arranged on the tank body (1), and the diversion mechanism is used for guiding the flow of the wastewater. The diversion mechanism includes a vertical shaft (5), a disc (6), a cross arm (7), a diversion spiral blade (8), a limiting bar (9), a liquid collection ring (10), a first filter screen (11), a drain pipe (12) and a scraping component. The vertical shaft (5) is rotationally connected to the tank body (1), the disc (6) is rotationally connected to the vertical shaft (5), a plurality of cross arms (7) are fixedly connected to the vertical shaft (5), and the plurality of cross arms (7) are all fixedly connected to the diversion spiral blade (8). The diversion spiral blade (8) is in frictional contact with the inner side wall of the tank body (1), a limiting bar (9) is fixedly connected to the diversion spiral blade (8), a liquid collection ring (10) is fixedly connected to the inner side wall of the lower end of the tank body (1), the open end of the liquid collection ring (10) is fixedly connected to a first filter screen (11), a drain pipe (12) is fixedly connected to the tank body (1), and one end of the drain pipe (12) is communicated with the chamber of the liquid collection ring (10); The scraping component is connected to the vertical shaft (5), and the scraping component is used for scraping crystals on the inner wall of the tank body (1).

2. The high-efficiency treatment device for industrial salt production wastewater according to claim 1, characterized in that: The scraping component includes a frame (13), a motor (14) and a scraper (15). The frame (13) is fixedly connected to the tank body (1), the motor (14) is installed on the frame (13), the output shaft of the motor (14) is connected to one end of the vertical shaft (5) through a coupling, a plurality of scrapers (15) are fixedly connected to the vertical shaft (5), the plurality of scrapers (15) are all in frictional contact with the inner wall of the tank body (1), and the plurality of scrapers (15) are all in frictional contact with the first filter screen (11).

3. An efficient treatment device for industrial salt production wastewater according to claim 1, characterized in that: A plurality of exhaust holes (16) are opened at the upper end of the tank body (1).

4. The high-efficiency treatment device for industrial salt production wastewater according to claim 1, wherein: A baffle (17) is fixedly connected to the lower end of the disc (6), and the baffle (17) is rotationally connected to the vertical shaft (5).

5. The high-efficiency treatment device for industrial salt production wastewater according to claim 1, wherein: The pretreatment mechanism includes a filter disc (18), a second filter screen (19) and a support rod (20). The filter disc (18) is sleeved on the disc (6), a second filter screen (19) is fixedly connected between the filter disc (18) and the disc (6), and a plurality of support rods (20) are fixedly connected between the filter disc (18) and the disc (6). The plurality of support rods (20) are all located below the second filter screen (19).

6. The high-efficiency treatment device for industrial salt production wastewater according to claim 5, wherein: The preprocessing mechanism further includes a solid collection ring (21), a toothed ring (22) and a conveying assembly. The inner ring of the solid collection ring (21) is fixedly connected to the filter disc (18), and the outer ring of the solid collection ring (21) is fixedly connected to the inner side wall of the tank body (1). A toothed ring (22) is fixedly connected to the inner side wall of the tank body (1); A plurality of the conveying assemblies are provided. A plurality of the conveying assemblies are all connected to the vertical shaft (5). A plurality of the conveying assemblies are all used for conveying the solid impurities filtered out by the second filter screen (19) into the solid collection ring (21). Each of the conveying assemblies includes a suspension arm (23), a conveying pipe (24), a rotating sleeve (26), a conveying shaft (27), a conveying spiral blade (28) and a gear (29). The suspension arm (23) is fixedly connected to the vertical shaft (5). A conveying pipe (24) is fixedly connected to the suspension arm (23). The conveying pipe (24) is in frictional contact with the second filter screen (19). A collection port (25) is formed in the conveying pipe (24). The collection port (25) is located above the second filter screen (19). A plurality of rotating sleeves (26) are fixedly connected to the inside of the conveying pipe (24). A plurality of the rotating sleeves (26) are all rotatably connected to the conveying shaft (27). A conveying spiral blade (28) is fixedly connected to the conveying shaft (27). One end of the conveying shaft (27) is fixedly connected to a gear (29). The gear (29) is meshed with the toothed ring (22).

7. An efficient treatment device for industrial salt production wastewater according to claim 6, characterized in that: A slag discharge pipe (30) is fixedly connected to the tank body (1). One end of the slag discharge pipe (30) is communicated with the chamber of the solid collection ring (21).

8. An efficient treatment device for industrial salt production wastewater according to claim 6, characterized in that: A push plate (31) is fixedly connected to each of the conveying pipes (24).

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