Strong brine low-temperature evaporation and concentration device

Abstract

The utility model discloses a strong brine low-temperature evaporation and concentration device which comprises a shell and a motor I, the side surface of the shell is connected with a water inlet, the motor I is mounted on the side surface of the shell, a low-temperature evaporation structure is mounted in the shell, and the low-temperature evaporation structure is mounted in the shell. The low-temperature evaporation structure can stir strong brine through a stirring roller so that evaporated water can be taken away by air, the low-temperature evaporation structure comprises an outer cylinder, the outer cylinder is fixedly installed on the side surface of the inner wall of the shell, the side surface of the inner wall of the outer cylinder is rotationally connected with the stirring roller, and a rotating shaft of the stirring roller is fixedly connected with a first motor; an electric heating plate is correspondingly installed below the outer cylinder and installed on the inner surface of the shell. The low-temperature evaporation and concentration device for the strong brine is provided with the low-temperature evaporation device, the electric heating plate preheats the strong brine and cooperates with rotation of the stirring roller to avoid crystallization and scaling, and steam of the steam circulation structure circulates through the steam pipe to heat the outer cylinder, so that energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of concentrated brine concentration, in particular to a concentrated brine low-temperature evaporation and concentration device. Background Art

[0002] At present, electroplating, water injection, papermaking, chlor-alkali and other industries generate a large amount of industrial wastewater, which often contains high-concentration inorganic salts. The direct discharge of high-concentration salt wastewater will cause great harm to the environment. The treatment of high-concentration salt wastewater is a major environmental problem facing industrial development at this stage. Comprehensive utilization is an important way to solve the bottleneck of high-concentration salt wastewater. The application of high-concentration salt wastewater reuse technology is an important guarantee for achieving significant economic, environmental and social benefits.

[0003] Evaporation crystallization technology and equipment often have the disadvantages of high operating pressure and complex composition, and are mostly used in enterprises with large amounts of concentrated brine. However, they are difficult to apply to projects with small amounts of concentrated brine that need to be disposed of. In addition, the energy consumption required for treatment is high and scaling is easy to occur. Utility Model Content

[0004] The utility model aims to provide a concentrated brine low-temperature evaporation and concentration device to solve the problems of high energy consumption and easy scaling of the concentrated brine concentration evaporation and crystallization technology proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concentrated brine low-temperature evaporation concentration device, comprising a shell, the side surface of which is connected to a water inlet, and also comprising a motor, which is installed on the side surface of the shell, and a low-temperature evaporation structure is installed inside the shell, and the low-temperature evaporation structure can stir the concentrated brine through a stirring roller so that the air can take away the evaporated water.

[0006] Preferably, the low-temperature evaporation structure includes an outer cylinder, which is fixedly mounted on the inner wall side surface of the outer shell, the inner wall side surface of the outer cylinder is rotatably connected to a stirring roller, and the rotating shaft of the stirring roller is fixedly connected to a motor 1, an electric heating plate is correspondingly installed below the outer cylinder, the electric heating plate is installed on the inner surface of the outer shell, the side surface of the outer cylinder is through-connected with a water inlet, and a salt outlet is arranged below the water inlet, and the salt outlet passes through the side surface of the outer cylinder.

[0007] By adopting the above technical solution, the low-temperature evaporation structure can avoid scaling by stirring with a stirring roller while evaporating and crystallizing.

[0008] Preferably, the front end of the stirring roller is in contact with the inner wall of the outer cylinder, and the front end of the stirring roller is set to be flat.

[0009] By adopting the above technical solution, the front end of the stirring roller will not cause damage to the inner wall of the outer cylinder.

[0010] Preferably, a steam circulation structure is provided on the outer surface of the outer cylinder, and the steam circulation structure enables steam to provide heat by surrounding the outer cylinder through a steam pipe.

[0011] By adopting the above technical solution, steam can be utilized and energy consumption can be reduced.

[0012] Preferably, the steam circulation structure includes a connecting box 1, which is installed on the upper surface of the outer cylinder, and the lower surface of the connecting box 1 is provided with an opening connected to the outer cylinder, the rear surface of the connecting box 1 is connected to a steam pipe, and a motor 2 is fixedly installed on the upper surface of the connecting box 1, and the lower end of the motor 2 is fixedly connected to an intake fan, and the intake fan is rotatably installed on the upper surface of the inner wall of the connecting box 1, and a connecting box 2 is installed on the other side of the upper surface of the outer cylinder, and the front surface of the connecting box 2 is provided with an opening, which is connected to the other end of the steam pipe.

[0013] By adopting the above technical solution, steam can flow in the steam pipe through the guidance of the connection box 1 and the connection box 2.

[0014] Preferably, the steam pipe is installed in a surrounding manner on the outer surface of the outer cylinder.

[0015] Adopting the above technical solution facilitates heat exchange.

[0016] Preferably, the rear surface of the connection box 2 is connected with an exhaust pipe.

[0017] The adoption of the technical solution facilitates the final discharge of steam.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the concentrated brine low-temperature evaporation and concentration device:

[0019] 1. The concentrated brine low-temperature evaporation and concentration device is provided with a low-temperature evaporation device. When in use, the concentrated brine is first added into the inner part of the outer cylinder through the water inlet on the side surface of the shell, and then the electric heating plate is turned on to preheat the concentrated brine through the electric heating plate, so that the water content of the concentrated brine reaches a low boiling point and generates steam;

[0020] 2. Further, the motor on the upper surface of the connection box 1 is turned on, so that the suction fan sucks the generated steam into the connection box 1, and then circulates on the outer surface of the outer cylinder through the steam pipe, thereby increasing the heat of the concentrated brine, so that the electric heating plate can reduce energy consumption;

[0021] 3. Furthermore, a stream of steam from the suction fan inside the connection box 2 enters the connection box 2, and is then discharged through the exhaust pipe. The concentrated brine inside the outer cylinder is then continuously evaporated and crystallized. At the same time, the motor is turned on to rotate the stirring roller, which can prevent the crystals from settling on the inner wall of the outer cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the axial side section structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the front cross-section structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the shaft side surface structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the stirring roller of the utility model.

[0026] In the figure: 1. outer shell; 2. water inlet; 3. outer cylinder; 4. motor 1; 5. stirring roller; 6. electric heating plate; 7. salt outlet; 8. steam pipe; 9. connection box 1; 10. suction fan; 11. motor 2; 12. connection box 2. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4 The utility model provides a technical solution: a concentrated brine low-temperature evaporation concentration device, including a shell 1, a water inlet 2, an outer cylinder 3, a motor 4, a stirring roller 5, an electric heating plate 6, a salt outlet 7, a steam pipe 8, a connection box 9, an air intake fan 10, a motor 11, and a connection box 12.

[0029] Example 1

[0030] The concentrated brine low-temperature evaporation and concentration device is provided with a low-temperature evaporation structure, so that the concentrated brine can be continuously evaporated and stirred inside the outer cylinder 3 for crystallization, specifically:

[0031] The side surface of the shell 1 is connected with a water inlet 2, a motor 4 is installed on the side surface of the shell 1, a low-temperature evaporation structure is installed inside the shell 1, and the low-temperature evaporation structure can stir the concentrated brine through a stirring roller 5 so that the air takes away the evaporated water, and the low-temperature evaporation structure includes an outer cylinder 3, the outer cylinder 3 is fixedly installed on the inner wall side surface of the shell 1, the inner wall side surface of the outer cylinder 3 is rotatably connected with a stirring roller 5, and the rotating shaft of the stirring roller 5 is fixedly connected with the motor 4, and an electric heating plate 6 is correspondingly installed below the outer cylinder 3, and the electric heating plate 6 is installed on the inner surface of the shell 1, the side surface of the outer cylinder 3 is connected with the water inlet 2, and a salt outlet 7 is arranged below the water inlet 2, and the salt outlet 7 passes through the side surface of the outer cylinder 3, the front end of the stirring roller 5 is in contact with the inner wall of the outer cylinder 3, and the front end of the stirring roller 5 is set in a flat state;

[0032] When the concentrated brine low-temperature evaporation and concentration device is used, Figure 1 As shown, first, the concentrated brine enters the outer cylinder 3 through the water inlet 2 connected to the side surface of the outer cylinder 1. An electric heating plate 6 is correspondingly arranged below the outer cylinder 3, so the electric heating plate 6 is turned on to heat the outer cylinder 3, and the low-boiling-point liquid in the concentrated brine boils to generate steam. Then the motor 4 installed on the side surface of the outer cylinder 1 is turned on, so that the motor 4 drives the stirring roller 5 to rotate. Since the front end of the stirring roller 5 is in contact with the inner wall of the outer cylinder 3, and the front end of the stirring roller 5 is set to a flat state, the stirring roller 5 stirs the internal liquid to make it evenly heated, and can avoid the deposition structure on the inner wall surface of the outer cylinder 3. The flat front end of the stirring roller 5 can avoid damage to the inner wall of the outer cylinder 3. Then, when the internal concentrated brine continues to evaporate, it begins to crystallize, and then the salt outlet 7 is connected to the self-priming pump to suck out the crystals.

[0033] Example 2

[0034] The concentrated brine low-temperature evaporation and concentration device is also provided with a steam circulation structure, which can guide steam through the connection box 1 9 and the connection box 2 12, specifically:

[0035] The outer surface of the outer cylinder 3 is provided with a steam circulation structure, and the steam circulation structure can make steam provide heat by surrounding the outer cylinder 3 through the steam pipe 8. The steam circulation structure includes a connecting box 9, which is installed on the upper surface of the outer cylinder 3, and the lower surface of the connecting box 9 is provided with an opening which is connected to the outer cylinder 3, and the rear surface of the connecting box 9 is connected to the steam pipe 8, and the upper surface of the connecting box 9 is fixedly installed with a motor 11, and the lower end of the motor 11 is fixedly connected with an air suction fan 10, and the air suction fan 10 is rotatably installed on the upper surface of the inner wall of the connecting box 9, and a connecting box 12 is installed on the other side of the upper surface of the outer cylinder 3, and the front surface of the connecting box 12 is provided with an opening, and the opening is connected to the other end of the steam pipe 8, and the steam pipe 8 is installed on the outer surface of the outer cylinder 3 in a surrounding manner, and the rear surface of the connecting box 12 is connected with an exhaust pipe;

[0036] After the concentrated brine inside the outer cylinder 3 is preheated by the electric heating plate 6 to generate steam, the motor 2 11 on the upper surface of the connecting box 1 9 is turned on to rotate the suction fan 10, and the suction fan 10 absorbs the steam inside the outer cylinder 3 into the connecting box 1 9, and then enters the steam pipe 8 connected to the rear surface of the connecting box 1 9. At this time, the motor 2 11 on the upper surface of the connecting box 2 12 will rotate the suction fan 10 inside the connecting box 2 12, and will guide the steam in the steam pipe 8 to circulate in the steam pipe 8. Since the steam pipe 8 is installed in a surrounding manner on the outer surface of the outer cylinder 3, the steam in the steam pipe 8 will exchange heat with the outer cylinder 3, so that the heat of the steam is utilized, which makes the energy consumption of the electric heating plate 6 relatively reduced, and finally the steam will be discharged through the exhaust pipe connected to the rear surface of the connecting box 2 12.

[0037] Working principle: When the concentrated brine low-temperature evaporation concentration device is used, a low-temperature evaporation structure is provided. The low-temperature evaporation structure can stir the concentrated brine through the stirring roller 5 so that the air takes away the evaporated water. The steam circulation structure can provide heat to the outer cylinder 3 through the steam pipe 8, thereby reducing energy consumption and increasing the overall practicality.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concentrated brine low-temperature evaporation and concentration device, comprising a housing (1), a side surface of the housing (1) being connected to a water inlet (2), characterized in that: The invention also comprises a motor (4), the motor (4) being mounted on the side surface of the outer shell (1), a low-temperature evaporation structure being mounted inside the outer shell (1), the low-temperature evaporation structure being capable of stirring the concentrated brine through a stirring roller (5) so that the air takes away the evaporated water; the low-temperature evaporation structure comprising an outer cylinder (3), the outer cylinder (3) being fixedly mounted on the side surface of the inner wall of the outer shell (1), the inner wall of the outer cylinder (3) being rotatably connected to the stirring roller (5), and the rotating shaft of the stirring roller (5) being fixedly connected to the motor (4), an electric heating plate (6) being mounted below the outer cylinder (3), the electric heating plate (6) being mounted on the inner surface of the outer shell (1), the side surface of the outer cylinder (3) being connected through the water inlet (2), and a salt outlet (7) being arranged below the water inlet (2), the salt outlet (7) being connected through the side surface of the outer cylinder (3).

2. The device for low-temperature evaporation and concentration of concentrated brine according to claim 1, characterized in that: The front end of the stirring roller (5) is in contact with the inner wall of the outer cylinder (3), and the front end of the stirring roller (5) is arranged in a flat state.

3. The device for low-temperature evaporation and concentration of concentrated brine according to claim 1, characterized in that: The outer surface of the outer cylinder (3) is provided with a steam circulation structure, and the steam circulation structure enables steam to flow around the outer cylinder (3) through a steam pipe (8) to provide heat.

4. A concentrated brine low temperature evaporation concentration device according to claim 3, characterized in that: The steam circulation structure comprises a connection box (9), wherein the connection box (9) is mounted on the upper surface of the outer cylinder (3), the lower surface of the connection box (9) is provided with an opening which is connected to the outer cylinder (3), the rear surface of the connection box (9) is connected to the steam pipe (8), and the upper surface of the connection box (9) is fixedly mounted with a motor (11), the lower end of the motor (11) is fixedly connected with an air intake fan (10), and the air intake fan (10) is rotatably mounted on the upper surface of the inner wall of the connection box (9), the other side of the upper surface of the outer cylinder (3) is provided with a connection box (12), and the front surface of the connection box (12) is provided with an opening which is connected to the other end of the steam pipe (8).

5. A concentrated brine low temperature evaporation concentration device according to claim 4, characterized in that: The steam pipe (8) is installed in a surrounding manner on the outer surface of the outer cylinder (3).

6. The device for low-temperature evaporation and concentration of concentrated brine according to claim 4, characterized in that: The rear surface of the second connection box (12) is connected with an exhaust pipe.

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