MVR (Mechanical Vapor Recompression) evaporation equipment for strong brine

Abstract

The utility model relates to the technical field of MVR (mechanical vapor recompression) evaporation crystallization, in particular to MVR evaporation equipment for strong brine, which comprises a separator, a flat plate vibrator is arranged on the peripheral wall of the separator, and a screw conveyer is communicated with an output port of the separator; a crusher is arranged below the screw conveyer, and an input port of the crusher is connected with an output end of the screw conveyer; an output port of the crusher is communicated with an input port of the circulating pump, an output port of the circulating pump is communicated with one end of the evaporator, and the other end of the evaporator is communicated with the separator; the flat plate vibrator vibrates off crystal salt on the inner wall of the separator, so that the influence on the operation efficiency of the separator due to accumulation of a large amount of crystal salt is avoided; through the spiral conveyor, the phenomenon that crystalline salt blocks an output port of the separator, and material circulation is blocked is avoided; crystallized salt passing through the crusher becomes powder and enters the circulating pump, so that the crystallized salt on the inner wall of the separator is prevented from forming large salt blocks and directly falling off to damage the circulating pump; continuous operation of the system is integrally facilitated, cost is saved, and overall efficiency is improved.

Description

Technical field:

[0001] The present application relates to the technical field of MVR evaporation and crystallization, and in particular to an MVR evaporation device for concentrated brine. Background technology:

[0002] The MVR forced circulation evaporation system is a type of evaporation equipment. The solution circulates within the system primarily through forced flow generated by external power. The MVR forced circulation evaporation system primarily consists of an evaporator, separator, and circulation pump. The solution is pumped upward by the circulation pump, flowing upward along the tubes in the heating chamber. The vapor is discharged in the separator, and the liquid flows into the pipeline and falls into the circulation pump.

[0003] In the forced evaporation system for treating concentrated brine, the inner wall of the separator may be attached by crystallized salt particles for various reasons. The attached salt particles gradually grow into large salt blocks in the system. The accumulation of crystallized salt will lead to reduced heat transfer efficiency, affecting the operating efficiency of the separator, and corroding its inner wall, reducing the service life of the separator. After the large pieces of crystallized salt fall directly, they will hit the circulation pump through the pipeline, causing damage to the pump body, and resulting in restricted material circulation, increased current and energy consumption of the circulation pump. This situation requires equipment cleaning, which is a cumbersome equipment cleaning process that requires a lot of manpower, material resources and time. Utility model content:

[0004] In order to solve the above technical problems, the utility model provides an MVR evaporation device for concentrated brine, and the technical solution adopted is:

[0005] An MVR evaporation device for concentrated brine, comprising:

[0006] separator;

[0007] A flat plate vibrator is arranged on the outer peripheral wall of the separator in a fixed structure;

[0008] Screw conveyor, the input end of the screw conveyor is connected to the output port of the separator in a fixed structure;

[0009] Crusher: The crusher is arranged below the screw conveyor, and the crusher input port is connected to the output end of the screw conveyor in a fixed structure;

[0010] Circulation pump, the circulation pump input port is connected to the crusher output port in a fixed structure;

[0011] Evaporator, one end of the evaporator is connected to the output port of the circulation pump in a fixed structure, and the other end of the evaporator is connected to the separator.

[0012] Furthermore, a feed port is provided on the upper end surface of the separator.

[0013] Furthermore, a bracket is fixedly provided at the lower end of the separator.

[0014] Furthermore, the separator output port is fixedly connected to the screw conveyor input end through flange A; the screw conveyor output end is fixedly connected to the crusher input port through flange B.

[0015] Furthermore, the circulation pump is connected to the crusher output port and the evaporator input port through pipeline A respectively; the evaporator output port is connected to the separator through pipeline B.

[0016] The beneficial effects of the utility model are as follows: the flat vibrator shakes off the crystallized salt on the inner wall of the separator, thereby preventing a large amount of crystallized salt from accumulating and affecting the operating efficiency of the separator; the screw conveyor prevents the crystallized salt from clogging the output port of the separator, thereby obstructing the material circulation; the crystallized salt passes through the crusher and becomes powdered and enters the circulation pump, thereby preventing large salt blocks from damaging the circulation pump and increasing the service life of the circulation pump. As a whole, it is beneficial to the continuous operation of the system, reduces the frequency of shutdown for cleaning and restarting, saves costs, and improves overall efficiency. Description of the drawings:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] In the picture:

[0019] 1. Separator, 2. Plate vibrator, 3. Screw conveyor, 4. Crusher, 5. Circulation pump, 6. Evaporator, 7. Feed inlet, 8. Flange A, 9. Flange B, 10. Pipe A, 11. Pipe B, 12. Bracket. Specific implementation method:

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will now be described in further detail with reference to the accompanying drawings and the following examples so that the public can better understand the implementation method of the present invention. The specific implementation scheme of the present invention is as follows:

[0021] An MVR evaporation device for concentrated brine includes a separator 1, a flat plate vibrator 2 is provided on the outer peripheral wall of the separator 1, and the output port of the separator 1 is connected to the input end of a screw conveyor 3 in a fixed structure manner; a crusher 4 is provided below the screw conveyor 3, and the input port of the crusher 4 is connected to the output end of the screw conveyor 3 in a fixed structure manner; the output port of the crusher 4 is connected to the input port of a circulation pump 5 in a fixed structure manner, and the output port of the circulation pump 5 is connected to one end of an evaporator 6 in a fixed structure manner, and the other end of the evaporator 6 is connected to the separator 1; the flat plate vibrator 2 shakes off the crystallized salt on the inner wall of the separator 1 to prevent a large amount of crystallized salt from accumulating and affecting the operating efficiency of the separator 1; the screw conveyor 3 is used to prevent the crystallized salt from clogging at the output port of the separator 1, causing material circulation to be obstructed; the crystallized salt passing through the crusher 4 is converted into powder and enters the circulation pump 5; it is effectively prevented that the crystallized salt on the inner wall of the separator 1 forms large salt blocks and directly falls off, thereby damaging the circulation pump 5; the overall operation is beneficial to the continuous operation of the system, reduces the frequency of shutdown for cleaning and restart, saves costs, and improves overall efficiency.

[0022] It should be noted that the upper end surface of the separator 1 is provided with a feed port 7, which is convenient for receiving the concentrated brine to be treated; the lower end of the separator 1 is fixedly provided with a bracket 12, which is provided to stably support the entire equipment.

[0023] It should be explained that the output port of the separator 1 is fixedly connected to the input end of the screw conveyor 3 through flange A8; the output end of the screw conveyor 3 is fixedly connected to the input port of the crusher 4 through flange B9; flange A8 and flange B9 provide a tight and reliable connection method to prevent material leakage during transmission, and this structure is convenient for disassembly and maintenance.

[0024] It should be explained that the circulation pump 5 is connected to the output port of the crusher 4 and the input port of the evaporator 6 through the pipeline A10; the output port of the evaporator 6 is connected to the separator 1 through the pipeline B11; the setting of this structure improves the material processing efficiency and the continuous operation capability of the entire system.

[0025] The working principle and working process of this utility model are as follows:

[0026] Concentrated brine is added to separator 1. During operation, crystallized salt will precipitate from separator 1, and some of the crystallized salt will adhere to the inner wall of separator 1, forming large pieces of crystallized salt. The flat plate vibrator 2 is started to shake the large pieces of crystallized salt on the inner wall of separator 1 down into the screw conveyor 3. The large pieces of crystallized salt are quickly fed into the crusher 4 through the screw conveyor 3, and the crystallized salt blocks are turned into powder under the operation of the crusher 4. The powdered crystallized salt enters the circulation pump 5 through pipe A10 to prevent large pieces of crystallized salt from falling directly into the circulation pump 5. After entering the circulation pump 5, the crystallized salt enters separator 1 through pipe B11 and evaporator 6. From separator 1, it is transferred to the transfer pump, thickener and centrifuge for final separation.

[0027] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "front", "back", "lower left", "upper right", "outer", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. Although the present invention has been described based on a limited number of embodiments, those skilled in the art, with the benefit of the above description, should understand that other embodiments are conceivable within the scope of the present invention described herein.

Claims

1. An MVR evaporation device for concentrated brine, characterized in that: include: Separator (1); A flat plate vibrator (2), the flat plate vibrator (2) being arranged on the outer peripheral wall of the separator (1) in a fixed structure manner; A screw conveyor (3), wherein the input end of the screw conveyor (3) is connected to the output port of the separator (1) in a fixed structure manner; A crusher (4), the crusher (4) is arranged below the screw conveyor (3), and the input port of the crusher (4) is connected to the output end of the screw conveyor (3) in a fixed structure manner; A circulating pump (5), the input port of the circulating pump (5) is connected to the output port of the crusher (4) in a fixed structure; An evaporator (6) is connected to the output port of the circulation pump (5) at one end in a fixed structure, and the other end of the evaporator (6) is connected to the separator (1).

2. The MVR evaporation equipment for concentrated brine according to claim 1, characterized in that: The upper end surface of the separator (1) is provided with a feed port (7).

3. The MVR evaporation equipment for concentrated brine according to claim 2, characterized in that: A bracket (12) is fixedly provided at the lower end of the separator (1).

4. The MVR evaporation equipment for concentrated brine according to claim 2, characterized in that: The output port of the separator (1) is fixedly connected to the input end of the screw conveyor (3) through a flange A (8); the output end of the screw conveyor (3) is fixedly connected to the input port of the crusher (4) through a flange B (9).

5. The MVR evaporation equipment for concentrated brine according to claim 1, characterized in that: The circulation pump (5) is connected to the crusher (4) output port and the evaporator (6) input port respectively through the pipeline A (10); the evaporator (6) output port is connected to the separator (1) through the pipeline B (11).

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