High-salinity wastewater crystallization recovery evaporator

Abstract

The utility model discloses a high-salinity wastewater crystallization recovery evaporator, and relates to the technical field of wastewater treatment. The evaporator comprises an evaporator body, a filter assembly and a crystallization assembly, the evaporator body is in sliding fit with the filtering assembly. The evaporator body is in sliding fit with the crystallization assembly. According to the utility model, the threaded rod is rotated to drive the scraping plate to move downwards, so that the scraping plate is in contact with the liquid film groove plate fixed at the bottom in the crystallization frame, then the crystallization baffle hinged and matched with the top of the crystallization frame is opened, and the scraping plate frame is pulled to drive the scraping plate to move on the sliding circular rail fixed on the inner wall of the sliding groove; the crystals on a liquid film groove plate in the crystallization assembly are scraped, so that the crystal salt in the crystallization assembly is cleaned, and the cleaning difficulty is reduced; in the cleaning process of the crystallization assembly and the filtering assembly, the crystallization assembly and the filtering assembly can be pulled out of the shell to be cleaned without waiting for temperature reduction in the shell, cleaning is convenient, and cleaning can be cleaner and more thorough.

Description

TECHNICAL FIELD

[0001] The utility model belongs to wastewater treatment technical field, especially, relate to a kind of high-salinity wastewater crystallization recovery evaporator. BACKGROUND

[0002] High-salinity wastewater refers to the wastewater containing organic matter and at least 3.5% (mass fraction) of total dissolved solids; The contained salt is mainly Cl-, SO42-, Na+, Ca2+ and other soluble inorganic salt substances. Direct discharge of high-salinity wastewater will affect water resources and land resources on the one hand, and these inorganic salt substances are easy to crystallize through evaporation, which will also cause resource waste if discharged directly. Crystallization recovery can be achieved through low-temperature evaporation.

[0003] In the prior art, evaporation crystallization technology is mostly used for high-salinity wastewater treatment, which mainly uses heating method to vaporize part of the solvent in the solution to increase the salt concentration of the solution and create conditions for the precipitation of solute. However, the heating effect of the existing technology on high-salinity wastewater is not good enough, and the contact between the heater and the high-salinity wastewater is not sufficient. At the same time, the crystallization component in the evaporator accelerates the efficiency of wastewater treatment, but if the crystalline salt on the surface of the crystallization component is not removed for a long time, it will affect the later crystallization process. In addition, the large insoluble impurities in the wastewater accumulate on the filter component, which can easily cause blockage of the internal structure and affect the use efficiency of the evaporator. Since the filter component and the crystallization component are in the evaporation box, it is not convenient to treat the crystalline salt and large particle impurities, and the temperature in the evaporator body needs to be lowered to a certain temperature before the cleaning can be started, which reduces the cleaning efficiency and increases the cleaning difficulty. SUMMARY

[0004] The utility model aims at providing a kind of high-salinity wastewater crystallization recovery evaporator, through the design of evaporator body, filter component and crystallization component, the problem of difficult cleaning of crystallization component in the evaporator in the above is solved.

[0005] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The application relates to a high-salinity wastewater crystallization recovery evaporator which comprises an evaporator body, filter assemblies and a plurality of crystallization assemblies which are arranged in the evaporator body in parallel and sequentially from top to bottom.

[0007] Further, the evaporator body comprises a shell; two slide groove frames are oppositely arranged on the inner wall of the shell near the top; a plurality of guide groove frames are arranged on the inner wall of the shell below the slide groove frames; a support frame extending to the middle of the shell interior is fixed below each guide groove frame on the inner wall of the shell, and the support frame is used for supporting the crystallization assembly from below.

[0008] Further, the left side or the right side of each crystallization frame is provided with a crystallization slide rail which is slidably connected in the guide groove frame; the guide groove frames are alternately arranged in the shell left and right; the lateral width of the crystallization frame is smaller than the width of the shell interior; the crystallization assemblies are alternately arranged in the shell from top to bottom, left or right; and the plurality of crystallization frames and the inner wall of the shell form an S-shaped space.

[0009] Further, the top of the shell is communicated with a water inlet pipe; the water inlet pipe is a three-way pipe, three ends of which are connected with a water inlet, the shell interior and the upper end of a flow pipe respectively; a water pump is arranged on the flow pipe; the lower end of the shell is connected with a water outlet pipe which is also a three-way pipe, three ends of which are connected with a water outlet, the shell interior and the lower end of the flow pipe respectively.

[0010] Further, the front side of the shell is slidably matched with a sealing plate; a hot air blower is arranged on the outer side of the shell below the crystallization assembly; the hot air blower is communicated with a hot air pipe; the hot air pipe penetrates into the shell interior and blows hot air upward towards the crystallization assembly; the upper part of the shell is communicated with an air outlet pipe; and an electronic control valve is arranged on the water outlet pipe.

[0011] Further, the filter assembly comprises a filter plate; a handle is fixed on one side of the filter plate; first slide rails are arranged on the left and right sides of the filter plate; and the first slide rails are slidably matched with the slide groove frames.

[0012] Further, a crystallization baffle is hingedly matched with the top of the crystallization frame.

[0013] The evaporator has the following beneficial effects:

[0014] 1、The utility model discloses a rotating threaded rod drives the sliding plate and the scraper plate that is slidably connected on the sliding plate to move downwards, finally makes the scraper plate and the liquid film groove plate that is fixed in the bottom of crystallization frame contact each other, then opens the crystallization baffle that is hingedly connected at the top of crystallization frame, and pulls the scraper holder, drives the scraper plate to move in the sliding slot, and completes the scraping of the crystallization in the liquid film groove plate of crystallization assembly, realizes the cleaning of the crystalline salt in the crystallization assembly, reduces the cleaning difficulty.

[0015] 2、In the process of cleaning the crystallization assembly and the filter assembly, they can be pulled out from the shell for cleaning without waiting for the temperature in the shell to reduce, which is convenient and can clean more thoroughly.

[0016] 3、The utility model discloses a filter assembly and the cooperation between the filter assembly and each component, prevent the large particle insoluble impurities in waste water from causing the blockage of the internal structure, improve the use efficiency of the whole evaporator.

[0017] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0019] Figure 1 It is the overall structural drawing of the high-salinity waste water crystallization recovery evaporator of the utility model.

[0020] Figure 2 It is the internal structure diagram of the embodiment of the utility model.

[0021] Figure 3 It is the sectional view of the embodiment of the utility model.

[0022] Figure 4 It is the crystallization assembly structure diagram of the embodiment of the utility model.

[0023] Figure 5 It is the filter assembly structure diagram of the embodiment of the utility model.

[0024] In the drawings, the component list represented by each sign is as follows:

[0025] 1-evaporator body, 2-filter assembly, 3-crystallization assembly, 101-housing, 102-slotted frame, 103-guide slotted frame, 104-support frame, 105-water inlet pipe, 106-sealing plate, 107-flow pipe, 108-water pump, 109-hot air blower, 110-hot air pipe, 111-air outlet pipe, 112-water outlet pipe, 201-filter plate, 202-handle, 203-first sliding rail, 301-crystallization frame, 302-liquid film groove plate, 303-slotted frame, 304-limiting rod, 305-scraping plate frame, 306-scraping plate, 307-guide frame, 308-threaded rod, 309-sliding plate, 310-crystallization sliding rail, 311-crystallization baffle. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-5 As shown in the drawings, the utility model is a kind of high-salinity wastewater crystallization recovery evaporator, including evaporator body 1, filter assembly 2 and multiple crystallization assemblies 3 sequentially arranged in evaporator body 1 in parallel;Filter assembly 2 and crystallization assembly 3 are slidably fitted in evaporator body 1 front and back;Crystallization assembly 3 includes crystallization frame 301;Crystallization frame 301 is fixed with liquid film groove plate 302 in bottom;Two inner side walls of crystallization frame 301 are both provided with slotted frame 303;Two slotted frames 303 are slidably fitted with scraping plate frame 305;Scraping plate frame 305 is slidably fitted with scraping plate 306 inside up and down;Crystallization frame 301 is fixedly installed with guide frame 307 on top;Guide frame 307 is slidably fitted with sliding plate 309 outside up and down, and threaded rod 308 is connected in sliding plate 309 inside screw thread. By rotating threaded rod 308, sliding plate 309 can be driven to move up and down;Sliding plate 309 is fixedly installed with limiting rod 304 arranged in parallel with slotted frame 303;Scraping plate 306 is slidably installed on limiting rod 304.

[0028] The evaporator body 1 comprises a shell 101, two sliding groove frames 102 are oppositely arranged on the inner wall of the shell 101 near the top, a plurality of guide groove frames 103 are arranged on the inner wall of the shell 101 below the sliding groove frames 102, a support frame 104 extending to the middle of the shell interior is fixed on the inner wall of the shell 101 below each guide groove frame 103, and the support frame 104 is used to support the crystallization assembly 3 from below. The crystallization frame 301 is supported by the support frame 104 below after being slidingly connected in the guide groove frame 103. The left side or the right side of each crystallization frame 301 is provided with a crystallization slide rail 310 which is slidingly connected in the guide groove frame 103. The guide groove frames 103 are alternately arranged left and right in the shell 101, the transverse width of the crystallization frame 301 is smaller than the width of the interior of the shell 101, and the crystallization assembly 3 is alternately arranged left and right from top to bottom in the shell 101, so that the plurality of crystallization frames 301 and the inner wall of the shell 101 form an S-shaped space.

[0029] The end of the crystallization frame 301 away from the guide frame 307 is movably connected with a crystallization baffle 311.

[0030] When the primary filtration of the filtering assembly 2 and the low-temperature evaporation of the crystallization assembly 3 are completed, the sealing plate 106 is opened, the handle 202 is pulled, the filtering assembly 2 is separated from the evaporator body 1, and the granular insoluble impurities on the filtering assembly 2 are cleaned. At the same time, the scraper frame 305 is pulled, the crystallization assembly 3 is separated from the evaporator body 1 through the sliding cooperation between the crystallization slide rail 310 and the guide groove frame 103, the threaded rod 308 is rotated, the scraper 306 slidingly cooperated with the limiting rod 304 is moved downward, the scraper 306 is finally in contact with the liquid film groove plate 302 fixed on the inner bottom of the crystallization frame 301, the crystallization baffle 311 hingedly cooperated on the top of the crystallization frame 301 is opened, the scraper frame 305 is pulled, the scraper 306 is moved in the inner wall of the sliding groove 303, and the crystallization on the liquid film groove plate 302 in the crystallization assembly 3 is scraped off, so that the cleaning of the crystalline salt in the crystallization assembly 3 is realized, and the cleaning difficulty is reduced.

[0031] As shown in Figures 1-3 The top of the shell 101 is communicated with a water inlet pipe 105, the water inlet pipe 105 is a three-way pipe, three ends of which are connected with a water inlet, the interior of the shell 101 and the upper end of a flow pipe 107 respectively, the water pump 108 is installed on the flow pipe 107, the lower end of the shell 101 is connected with a water outlet pipe 112, the water outlet pipe 112 is also a three-way pipe, three ends of which are connected with a water outlet, the interior of the shell 101 and the lower end of the flow pipe 107 respectively.

[0032] A sealing plate 106 is slidably fitted on the front side of the housing 101; a hot air blower 109 is installed on the outer side of the housing 101 below the crystallization component 3; the hot air blower 109 is connected to a hot air pipe 110; the hot air pipe 110 passes through the interior of the housing 101 and blows hot air upward toward the crystallization component 3; an air outlet pipe 111 is connected to the upper part of the housing 101; an electronic control valve is installed on the water outlet pipe 112.

[0033] Wastewater is introduced through inlet pipe 105, passing through the initial filtration of filter assembly 2. The primary filtered wastewater then falls into the liquid film tank 302 at the bottom of the crystallization frame 301 within the multiple crystallization components 3 below filter assembly 2. Hot air blower 109 is activated, allowing hot air to enter the evaporator body 1 through hot air pipe 110. The hot air can only pass between adjacent crystallization components 3, rising in an S-shape. Because the flow direction of the hot air is opposite to that of the wastewater, the hot air can more effectively evaporate the wastewater at low temperatures. During the rising process of hot air, it is output from the outside of the housing 101 through the air outlet pipe 111. When the wastewater that has not been fully evaporated in the evaporator body 1 enters the wastewater storage chamber connected to the lower end of the water outlet pipe 112, the water pump 108 is started. This allows the wastewater that has not been fully evaporated in the water outlet pipe 112 to be pumped by the water pump 108 and re-enter the water inlet pipe 105 through the flow pipe 107, and finally enter the inside of the housing 101 for further full evaporation. After full evaporation, the water pump 108 is turned off and the electronic control valve set on the water outlet pipe 112 is opened to discharge the fully evaporated wastewater.

[0034] like Figure 5 As shown, the filter assembly 2 includes a filter plate 201; a handle 202 is fixed to one side of the filter plate 201; first slide rails 203 are provided on the left and right sides of the filter plate 201; the first slide rails 203 are slidably engaged with the slide frame 102. By opening the sealing plate 106 and pulling the handle 202 through the sliding engagement between the first slide rails 203 and the slide frame 102, the filter assembly 2 is separated from the evaporator body 1, and particulate insoluble impurities on the filter assembly 2 are cleaned. In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A high-salinity wastewater crystallization recovery evaporator, comprising an evaporator body (1), a filter assembly (2) and a plurality of crystallization assemblies (3) arranged in sequence from top to bottom in parallel in the evaporator body (1); characterized in that: The filter assembly (2) and the crystallization assembly (3) are slidably fitted in the evaporator body (1) in front and back; the crystallization assembly (3) comprises a crystallization frame (301); the inner bottom of the crystallization frame (301) is fixed with a liquid film groove plate (302); the opposite two inner side walls of the crystallization frame (301) are provided with sliding grooves (303); a scraper frame (305) is slidably fitted between the two sliding grooves (303); a scraper (306) is slidably fitted inside the scraper frame (305); the top of the crystallization frame (301) is fixedly provided with a guide frame (307); the guide frame (307) is slidably fitted with a sliding plate (309) outside; the sliding plate (309) is threadedly connected with a threaded rod (308); the sliding plate (309) can be driven to move up and down by rotating the threaded rod (308); the sliding plate (309) is fixedly provided with a limiting rod (304) which is parallel to the sliding groove (303); the scraper (306) is slidably mounted on the limiting rod (304).

2. A high-salinity wastewater crystallization recovery evaporator according to claim 1, characterized in that, The evaporator body (1) comprises a shell (101); the inner wall of the shell (101) is provided with two sliding groove frames (102) opposite to each other near the top; the inner wall of the shell (101) is provided with a plurality of guide groove frames (103) below the sliding groove frames (102); the inner wall of the shell (101) is fixed with a support frame (104) extending to the middle of the shell interior below each guide groove frame (103), which is used to support the crystallization assembly (3) from below.

3. A high-salinity wastewater crystallization recovery evaporator according to claim 2, characterized in that, The left side or the right side of each crystallization frame (301) is provided with a crystallization sliding rail (310) which is slidably connected in the guide groove frame (103); the guide groove frames (103) are alternately arranged left and right in the shell (101); the transverse width of the crystallization frame (301) is smaller than the width of the interior of the shell (101); the crystallization assembly (3) is alternately arranged left and right from top to bottom in the shell (101); a plurality of crystallization frames (301) and the inner wall of the shell (101) form an S-shaped space.

4. The high-salinity wastewater crystallization recovery evaporator of claim 2, wherein, The top of the shell (101) is communicated with a water inlet pipe (105); the water inlet pipe (105) is a three-way pipe, and the three ends are connected with a water inlet, the interior of the shell (101) and the upper end of a flow pipe (107) respectively; the flow pipe (107) is provided with a water pump (108); the lower end of the shell (101) is connected with a water outlet pipe (112); the water outlet pipe (112) is also a three-way pipe, and the three ends are connected with a water outlet, the interior of the shell (101) and the lower end of the flow pipe (107) respectively.

5. A high salinity wastewater crystallization recovery evaporator according to claim 4, wherein, The front side of the shell (101) is slidably fitted with a sealing plate (106); the outer side of the shell (101) is provided with a hot air blower (109) below the crystallization assembly (3); the hot air blower (109) is communicated with a hot air pipe (110); the hot air pipe (110) penetrates into the interior of the shell (101) and blows hot air upward toward the crystallization assembly (3); the upper part of the shell (101) is communicated with an air outlet pipe (111); the water outlet pipe (112) is provided with an electronic control valve.

6. The high-salinity wastewater crystallization recovery evaporator of claim 1, wherein, The filter assembly (2) comprises a filter plate (201), one side of the filter plate (201) is fixed with a handle (202), the left and right sides of the filter plate (201) are provided with first sliding rails (203), and the first sliding rails (203) are in sliding fit with a sliding groove frame (102).

7. A high salinity wastewater crystallization recovery evaporator according to claim 3, wherein, The crystallization baffle (311) is hingedly matched with the top of the crystallization frame (301).

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