Crystallization equipment for high-salinity wastewater

Abstract

The utility model discloses crystallization equipment for high-salinity wastewater, which relates to the technical field of wastewater crystallization treatment and comprises a crystallization barrel, a feed pipe and an exhaust pipe are arranged on the upper surface of the crystallization barrel, a discharge pipe is mounted on the lower surface of the crystallization barrel, a stirring unit is arranged in the crystallization barrel, and a heating component is arranged in the side wall of the crystallization barrel. The device has the beneficial effects that waste water and crystals in the crystallization barrel are turned over through the air delivery pipe, the scraper and the motor, the waste water and the crystals are conveniently and rapidly heated, meanwhile, an external hot air device delivers hot air into the waste water and the crystals through the air guide valve, the air delivery pipe, the one-way valve, the air guide cavity and the air outlet hole, the waste water and the crystals are turned over through the hot air, and meanwhile the heat efficiency is improved. The scraper blade is heated by hot air, and the heated scraper blade and hot air quickly evaporate and take out moisture in the wastewater and crystals, so that the crystallization speed of salt in the wastewater is effectively increased.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater crystallization treatment, in particular to a crystallization device for high-salt wastewater. Background Art

[0002] High-salt wastewater refers to wastewater with a total salt content of at least 1% by mass. It mainly comes from chemical plants and the collection and processing of oil and natural gas. This wastewater contains a variety of substances, including salt, oil, organic heavy metals and radioactive substances. When treating high-salt wastewater, it needs to be evaporated and crystallized.

[0003] After searching, the Chinese patent publication number CN220223675U discloses a high-salt wastewater evaporation crystallization device, which mainly stirs the wastewater and crystals through a stirring scraper, thereby improving the efficiency of crystallization.

[0004] By comparing with the existing technologies in related fields, it can be seen that the existing methods mainly evaporate and crystallize the wastewater. During the crystallization, as the crystals increase, the crystals will form a certain accumulation, which affects the heat transfer and greatly slows down the crystallization rate of salt in the wastewater. Utility Model Content

[0005] The purpose of the utility model is to provide a crystallization device for high-salt wastewater in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A crystallization device for high-salt wastewater comprises a crystallization barrel, wherein a feed pipe and an exhaust pipe are arranged on the upper surface of the crystallization barrel, a discharge pipe is installed on the lower surface of the crystallization barrel, a stirring unit is arranged inside the crystallization barrel, a heating component is arranged inside the side wall of the crystallization barrel, the feed pipe is connected to an external feeding device, the exhaust pipe is connected to an external exhaust device, the external feeding device transports wastewater into the crystallization barrel through the feed pipe, the heating component heats the wastewater so that water in the wastewater evaporates and salt crystallizes, the stirring unit stirs the wastewater and the crystals to accelerate the crystallization speed, the external exhaust device extracts evaporated water in the crystallization barrel through the exhaust pipe, and the crystals are led out and collected through the discharge pipe;

[0008] The stirring unit includes an air guide valve, an air delivery pipe and a motor. The air guide valve is installed on the upper surface of the crystallization barrel, the air delivery pipe is rotatably installed on the crystallization barrel, the air delivery pipe is rotatably connected to the air guide valve, a scraper is installed on the part of the air delivery pipe located in the crystallization barrel, the scraper is an arc-shaped plate, an air guide cavity is arranged in the scraper, an air outlet is arranged on the surface of the scraper, the air outlet is connected to the air delivery pipe through the air guide cavity, an elastic component is installed at the end of the scraper, a cleaning plate is installed on the elastic component, the cleaning plate is slidably connected to the inner wall of the crystallization barrel, the motor is installed on the lower surface of the crystallization barrel, the output shaft of the motor is connected to the air delivery pipe, the air guide valve is connected to an external hot air device, the motor and the external controller are electrically connected, the air guide valve and the motor work using the existing technology, during the evaporation and crystallization of salt in the wastewater, the motor drives the scraper and The cleaning plate stirs the wastewater and crystals to speed up the efficiency of crystallization. The crystals on the inner wall of the crystallization barrel are scraped off by the cleaning plate to ensure that the heating component can effectively heat the wastewater. At the same time, the external hot air device transports hot air to the crystallization barrel through the air guide valve, air pipe, air guide cavity and air outlet. The wastewater and crystals are turned over by the hot air, and the hot air quickly takes out the moisture. At the same time, the hot air heats the scraper, and the heated scraper heats the wastewater and crystals, thereby effectively improving the efficiency of salt crystallization in the wastewater. The scraper is an arc-shaped plate. During the rotation process, the crystals on the arc-shaped surface of the scraper will be detached due to friction during the rotation process, avoiding the accumulation of crystals on the scraper, so that the scraper can effectively heat the wastewater and crystals during the stirring process.

[0009] Furthermore, the elastic component includes a storage chamber, which is arranged in the scraper, and a spring is installed in the storage chamber. The spring is connected to a slide plate, and the slide plate is slidably connected in the storage chamber. The slide plate is connected to a support rod, and the support rod is slidably connected to the scraper, and the support rod is connected to a cleaning plate. The cleaning plate is always connected to the inner wall of the crystallization barrel through the spring, the slide plate and the support rod.

[0010] Furthermore, a one-way valve is installed in the air outlet, and the one-way valve can effectively prevent crystals from entering the air outlet.

[0011] Furthermore, the interior of the gas pipe and the gas guide cavity are both frustum-shaped with one end wide and the other end narrow. The gas flow rate is fast in the wide part and slow in the narrow part. Through the frustum-shaped setting, the hot air can be evenly distributed when transported in the gas pipe and the gas guide cavity.

[0012] Furthermore, the heating component includes a heating chamber, which is arranged in the side wall of the crystallization barrel. A heating wire is installed in the heating chamber. The heating wire is electrically connected to an external controller. The heating wire works using existing technology to heat and evaporate the wastewater in the crystallization barrel.

[0013] Furthermore, a temperature sensor is installed on the inner upper surface of the crystallization barrel, and the temperature sensor is electrically connected to an external controller, so that the temperature inside the crystallization barrel is monitored by the temperature sensor.

[0014] Furthermore, a push plate is slidably connected to the inner bottom surface of the crystallization barrel, and the push plate is installed on the scraper. The push plate pushes the crystals on the inner bottom surface of the crystallization barrel, thereby effectively improving the speed of crystal discharging.

[0015] The beneficial effects compared with the prior art are as follows:

[0016] 1. The wastewater and crystals in the crystallization barrel are turned over by the air pipe, scraper and motor, which is convenient for rapid heating of the wastewater and crystals. At the same time, the external hot air device transports hot air to the wastewater and crystals through the air guide valve, air pipe, one-way valve, air guide cavity and air outlet. The hot air turns the wastewater and crystals and heats them at multiple points. At the same time, the scraper is heated by hot air. The heated scraper and hot air quickly evaporate the water in the wastewater and crystals, effectively increasing the crystallization rate of salt in the wastewater.

[0017] 2. The scraper is an arc-shaped plate, which turns the wastewater and crystals through the arc surface of the scraper. When turning, the crystals on the arc surface of the scraper will fall due to the friction of movement, which effectively avoids the accumulation of crystals on the scraper, ensuring the effective heating of the wastewater and crystals by the scraper, and then the crystals on the inner wall of the crystallization barrel are scraped off by the cleaning plate to avoid the crystals affecting the heat transfer of the electric heating wire, thereby ensuring the effective heating of the wastewater and crystals during the crystallization process and improving the efficiency of salt crystallization in the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic cross-sectional structure diagram of a crystallization device for high-salt wastewater according to the utility model;

[0020] Figure 2 It is a cross-sectional front view structural schematic diagram of a crystallization device for high-salt wastewater described in the utility model;

[0021] Figure 3 It is a schematic diagram of a partial cross-sectional structure of a scraper of a crystallization device for high-salt wastewater described in the utility model;

[0022] Figure 4 The utility model is a crystallization device for high-salt wastewater Figure 3 The enlarged structural diagram at A in the middle;

[0023] Figure 5 It is a schematic diagram of the front cross-sectional structure of a scraper of a crystallization device for high-salt wastewater described in the utility model;

[0024] Figure 6 It is a schematic diagram of the cross-sectional structure of the gas pipeline of a crystallization device for high-salt wastewater described in the utility model;

[0025] Figure 7 It is a schematic diagram of the overall structure of a crystallization device for high-salt wastewater described in the utility model.

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Crystallization barrel; 2. Feed pipe; 3. Stirring unit; 31. Air guide valve; 32. Air delivery pipe; 33. Scraper; 34. Motor; 35. One-way valve; 36. Spring; 37. Slide plate; 38. Support rod; 39. Cleaning plate; 310. Air guide cavity; 311. Air outlet; 312. Storage cavity; 4. Heating cavity; 5. Heating wire; 6. Exhaust pipe; 7. Discharge pipe; 8. Temperature sensor; 9. Push plate. DETAILED DESCRIPTION

[0028] like Figure 1-Figure 7 As shown, a crystallization device for high-salt wastewater includes a crystallization barrel 1, a feed pipe 2 and an exhaust pipe 6 are arranged on the upper surface of the crystallization barrel 1, a discharge pipe 7 is installed on the lower surface of the crystallization barrel 1, a stirring unit 3 is arranged inside the crystallization barrel 1, a heating component is arranged inside the side wall of the crystallization barrel 1, the feed pipe 2 is connected to an external feeding device, and the exhaust pipe 6 is connected to an external exhaust device, such as Figure 1 , Figure 2 , Figure 7 As shown, the external feeding device transports the wastewater into the crystallization barrel 1 through the feed pipe 2, heats the wastewater through the heating component, so that the water in the wastewater evaporates and the salt crystallizes, stirs the wastewater and the crystals through the stirring unit 3 to accelerate the crystallization speed, and the external exhaust device extracts the evaporated water in the crystallization barrel 1 through the exhaust pipe 6, and the crystals are discharged and collected through the discharge pipe 7;

[0029] The stirring unit 3 includes an air guide valve 31, an air delivery pipe 32 and a motor 34. The air guide valve 31 is installed on the upper surface of the crystallization barrel 1, and the air delivery pipe 32 is rotatably installed on the crystallization barrel 1. The air delivery pipe 32 is rotatably connected to the air guide valve 31. A scraper 33 is installed on the part of the air delivery pipe 32 located in the crystallization barrel 1. The scraper 33 is an arc-shaped plate. An air guide cavity 310 is arranged in the scraper 33. An air outlet 311 is arranged on the surface of the scraper 33. The air outlet 311 is connected to the air delivery pipe 32 through the air guide cavity 310. An elastic component is installed at the end of the scraper 33. A cleaning plate 39 is installed on the elastic component. The cleaning plate 39 is slidably connected to the inner wall of the crystallization barrel 1. The motor 34 is installed on the lower surface of the crystallization barrel 1. The output shaft of the motor 34 is connected to the air delivery pipe 32. The air guide valve 31 is connected to an external hot air device. The motor 34 is electrically connected to an external controller. The air guide valve 31 and the motor 34 work using existing technologies, such as Figure 1-Figure 3 , Figure 5 , Figure 7 As shown, during the evaporation and crystallization of salt in the wastewater, the motor 34 drives the air pipe 32 to rotate, and the air pipe 32 drives the scraper 33 and the cleaning plate 39 to rotate, and the scraper 33 and the cleaning plate 39 are used to stir and turn the wastewater and the crystals, so that the wastewater and the crystals can be quickly heated, and the efficiency of the salt crystallization in the wastewater is effectively improved. When the cleaning plate 39 rotates, the crystals on the inner wall of the crystallization barrel 1 are scraped off by the cleaning plate 39, ensuring that the heating component can effectively heat the wastewater. At the same time, the external hot air device conveys the hot air to the air pipe 32 through the air guide valve 31, and the hot air is dispersed into the air guides on different scrapers 33 through the air pipe 32. In the cavity 310, the hot air in the air guide cavity 310 is dispersed into the crystallization barrel 1 through the air outlet 311, and the wastewater and crystals are turned over by the hot air, and the wastewater and crystals are heated at multiple points, and the moisture is quickly taken out by the hot air. At the same time, the hot air heats the scraper 33, and the heated scraper 33 heats the wastewater and crystals, thereby effectively improving the efficiency of salt crystallization in the wastewater. The scraper 33 is an arc-shaped plate. During the rotation process, the crystals on the arc-shaped surface of the scraper 33 will be detached due to friction during the rotation process, thereby avoiding the accumulation of crystals on the scraper 33, so that the scraper 33 can effectively heat the wastewater and crystals during the stirring process.

[0030] The elastic component includes a receiving chamber 312, which is arranged in the scraper 33. A spring 36 is installed in the receiving chamber 312. The spring 36 is connected to a slide plate 37. The slide plate 37 is slidably connected in the receiving chamber 312. The slide plate 37 is connected to a support rod 38. The support rod 38 is slidably connected to the scraper 33. The support rod 38 is connected to the cleaning plate 39. Figure 3 , Figure 4As shown, under the elastic force of spring 36, spring 36 tightens cleaning plate 39 through slide plate 37 and support rod 38, so that cleaning plate 39 is always connected to the inner wall of crystallization barrel 1, thereby ensuring that cleaning plate 39 can effectively scrape off the crystals on the inner wall of crystallization barrel 1.

[0031] A one-way valve 35 is installed in the air outlet 311. Figure 3 , Figure 5 As shown, the hot air in the air outlet 311 enters the crystallization barrel 1 through the one-way valve 35 , and the one-way valve 35 can effectively prevent crystals from entering the air outlet 311 .

[0032] The interior of the gas delivery pipe 32 and the gas guide cavity 310 are both in the shape of a cone with one end wide and the other end narrow. Figure 2 , Figure 5 , Figure 6 As shown, the gas flow rate is fast in the wide part and slow in the narrow part. Through the frustum-shaped setting, the hot air can be evenly distributed when being transported in the air delivery pipe 32 and the air guide cavity 310.

[0033] The heating assembly includes a heating chamber 4, which is arranged in the side wall of the crystallization barrel 1. A heating wire 5 is installed in the heating chamber 4. The heating wire 5 is electrically connected to an external controller. The heating wire 5 works using existing technology, such as Figure 1 , Figure 2 As shown, the crystallization barrel 1 is heated by the electric heating wire 5, and heat is transferred through the crystallization barrel 1, so that the wastewater in the crystallization barrel 1 is heated and evaporated.

[0034] A temperature sensor 8 is installed on the inner upper surface of the crystallization barrel 1, and the temperature sensor 8 is electrically connected to an external controller. Figure 2 As shown, during the working process, the temperature in the crystallization barrel 1 is monitored by the temperature sensor 8.

[0035] A push plate 9 is slidably connected to the inner bottom surface of the crystallization barrel 1, and the push plate 9 is installed on the scraper 33. Figure 1 , Figure 2 As shown, the scraper 33 drives the push plate 9 to rotate, and the push plate 9 pushes the crystals on the bottom surface of the crystallization barrel 1, so that the crystals can better enter the discharge pipe 7, effectively improving the speed of crystal discharge.

[0036] Working principle: Figure 1 , Figure 2 , Figure 7 As shown, the external feeding device conveys the wastewater into the crystallization barrel 1 through the feeding pipe 2, and heats the crystallization barrel 1 through the electric heating wire 5, thereby heating and evaporating the water in the wastewater in the crystallization barrel 1, so that the salt in the wastewater is crystallized and precipitated;

[0037] At the same time, if Figure 1-Figure 3 , Figure 5 , Figure 7 As shown, the external hot air device conveys the hot air to the air delivery pipe 32 through the air guide valve 31, and the hot air is dispersed into the air guide cavity 310 on different scrapers 33 through the air delivery pipe 32. The hot air in the air guide cavity 310 is dispersed into the crystallization barrel 1 through the air outlet 311 and the one-way valve 35, and the waste water and crystals are turned over by the hot air, and the moisture in the crystals is quickly taken out by the hot air. The external exhaust device extracts the evaporated moisture in the crystallization barrel 1 through the exhaust pipe 6;

[0038] During the evaporation and crystallization of salt in wastewater by hot air, Figure 1-Figure 3 , Figure 5 As shown, the hot air heats the scraper 33, and the heated scraper 33 heats the wastewater and crystals; Figure 2 As shown, during the working process, the temperature in the crystallization barrel 1 is monitored by the temperature sensor 8;

[0039] At the same time, if Figure 1-Figure 3 , Figure 5 , Figure 7 As shown, the air pipe 32 is driven to rotate by the motor 34, and the scraper 33 and the cleaning plate 39 are driven to rotate by the air pipe 32, and the wastewater and the crystals are stirred and turned by the scraper 33 and the cleaning plate 39, so that the salt in the wastewater can be quickly heated and crystallized; the scraper 33 is an arc-shaped plate, and during the rotation process, the crystals on the arc-shaped surface of the scraper 33 will be separated due to friction during the rotation process, so as to avoid the crystals from accumulating on the scraper 33;

[0040] When the cleaning plate 39 rotates, Figure 3 , Figure 4 As shown, under the elastic force of the spring 36, the spring 36 tightens the cleaning plate 39 through the slide plate 37 and the support rod 38, so that the cleaning plate 39 is always connected to the inner wall of the crystallization barrel 1, and the crystals on the inner wall of the crystallization barrel 1 are scraped off by the cleaning plate 39, ensuring the effect of the electric heating wire 5 on heating the wastewater;

[0041] After crystallization is completed, Figure 1 , Figure 2 As shown, the scraper 33 drives the push plate 9 to rotate, and the push plate 9 pushes the crystals on the bottom surface of the crystallization barrel 1 so that the crystals can better enter the discharge pipe 7, and the crystals are discharged and collected through the discharge pipe 7.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A crystallization device for high-salinity wastewater, characterized in that: The invention comprises a crystallization barrel (1), wherein the upper surface of the crystallization barrel (1) is provided with a feed pipe (2) and an exhaust pipe (6), the lower surface of the crystallization barrel (1) is provided with a discharge pipe (7), a stirring unit (3) is provided inside the crystallization barrel (1), and a heating component is provided inside the side wall of the crystallization barrel (1); The stirring unit (3) comprises an air guide valve (31), an air delivery pipe (32) and a motor (34); the air guide valve (31) is mounted on the upper surface of the crystallization barrel (1); the air delivery pipe (32) is rotatably mounted on the crystallization barrel (1); the air delivery pipe (32) is rotatably connected to the air guide valve (31); a scraper (33) is mounted on the portion of the air delivery pipe (32) located inside the crystallization barrel (1); the scraper (33) is an arc-shaped plate; an air guide cavity (34) is arranged inside the scraper (33); 10), the surface of the scraper (33) is provided with an air outlet (311), the air outlet (311) is connected to the air supply pipe (32) through the air guide cavity (310), the end of the scraper (33) is installed with an elastic component, the elastic component is installed with a cleaning plate (39), the cleaning plate (39) is slidably connected to the inner wall of the crystallization barrel (1), the motor (34) is installed on the lower surface of the crystallization barrel (1), and the output shaft of the motor (34) is connected to the air supply pipe (32).

2. The crystallization device for high-salinity wastewater according to claim 1, characterized in that: The elastic component comprises a receiving chamber (312), wherein the receiving chamber (312) is arranged in the scraper (33), wherein a spring (36) is installed in the receiving chamber (312), wherein the spring (36) is connected to a slide plate (37), wherein the slide plate (37) is slidably connected in the receiving chamber (312), wherein the slide plate (37) is connected to a support rod (38), wherein the support rod (38) is slidably connected to the scraper (33), and wherein the support rod (38) is connected to the cleaning plate (39).

3. The crystallization device for high-salinity wastewater according to claim 1, characterized in that: A one-way valve (35) is installed in the air outlet hole (311).

4. The crystallization device for high-salinity wastewater according to claim 1, characterized in that: The interior of the gas delivery pipe (32) and the gas guide cavity (310) are both in the shape of a frustum with one end being wide and the other end being narrow.

5. The crystallization device for high-salinity wastewater according to claim 1, characterized in that: The heating component comprises a heating chamber (4), the heating chamber (4) is arranged in the side wall of the crystallization barrel (1), and an electric heating wire (5) is installed in the heating chamber (4).

6. The crystallization device for high-salinity wastewater according to claim 1, characterized in that: A temperature sensor (8) is installed on the inner upper surface of the crystallization barrel (1).

7. The crystallization device for high-salinity wastewater according to claim 1, characterized in that: A push plate (9) is slidably connected to the inner bottom surface of the crystallization barrel (1), and the push plate (9) is mounted on the scraper (33).

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