A high-salt wastewater concentration and crystallization treatment device

Abstract

The utility model discloses a high-salt wastewater concentration crystallization treatment device, including a crystallizer and a heater, wherein the exhaust end of the crystallizer is provided with a condenser, a circulation pump is provided between the feed end of the crystallizer and the feed end of the heater, a feed pipe is provided at the external feed port of the circulation pump, a filter basket is provided in the feed pipe, and a quick-release part for connecting the filter basket and the feed pipe is provided between the connection between the filter basket and the feed pipe. The utility model firstly provides a filter basket in the feed pipe, and by changing the flat net into a basket structure, after the solid impurities are blocked, they will be deposited at the bottom of the basket due to gravity in the basket, which will not hinder the entire water intake process, and at the same time, a quick-release part for connecting the filter basket and the feed pipe is provided between the connection between the filter basket and the feed pipe, which is convenient for dismantling and cleaning the filter basket, thereby making the filter structure more convenient to maintain.

Description

Technical Field

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

[0002] The evaporation crystallizer uses the evaporation of part of the solvent to achieve the supersaturation of the solution. The evaporation crystallizer also operates under reduced pressure conditions. The boiling point of the feed liquid can be lowered by reducing the pressure, so that the heat can be fully utilized through multiple-effect evaporation.

[0003] When the existing high-salt wastewater crystallization treatment device is performing wastewater crystallization treatment, a pipe is connected between the crystallizer and the circulation pump to circulate the feed liquid, so as to make the wastewater crystallization treatment more complete, and a feed port of the circulation pump also needs to be connected to an injection pipe of the feed liquid raw liquid. When the existing device is set up, a filter screen is set at the feed pipe. These filter screens are flat mesh structures and are fixed to the pipe mouth of the feed pipe by welding. The flat mesh form blocks the solid impurities in the original waste liquid at the pipe mouth. Under such a setting, the impurities in the liquid will be more easily accumulated on the outer surface of the entire filter mesh structure, and the welding fixing form is not easy to disassemble and maintain the filter mesh body. Utility Model Content

[0004] The purpose of the utility model is to provide a high-salt wastewater concentration and crystallization treatment device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-salt wastewater concentration and crystallization treatment device, comprising a crystallizer and a heater, a condenser is provided at the exhaust end of the crystallizer, a circulating pump is provided between the feed end of the crystallizer and the feed end of the heater, a feed pipe is provided at the external feed port of the circulating pump, a filter basket is provided in the feed pipe, and a quick-release part for connecting the filter basket and the feed pipe is provided between the connection between the two.

[0006] Preferably, an elutriation column is provided at the bottom of the crystallizer.

[0007] Preferably, an air guide pipe is provided between the exhaust end of the crystallizer and the air inlet end of the condenser.

[0008] Preferably, a reflux pipe is provided in the middle of the crystallizer, an end of the reflux pipe away from the crystallizer is connected to one of the feed ends of the circulation pump, and a feeding pipe is provided between the discharge end of the circulation pump and the bottom of the crystallizer.

[0009] Preferably, a filter groove is provided in the middle of the filter basket, and a plurality of filter holes are provided at the bottom and sides of the filter groove.

[0010] Preferably, a slot is provided at one end of the feed pipe away from the circulation pump, a storage slot is provided on the side of the filter basket, the slot is used for inserting and storing quick-release parts, and a flange is provided on the outer wall of the feed pipe.

[0011] Preferably, the quick-release parts include:

[0012] An extrusion block, one end of which is slidably and interlacedly connected with the receiving groove, the other end of which is interlacedly connected with the card groove, and a through-slot is provided at one end of the extrusion block close to the filter basket;

[0013] A guide slide bar is fixedly connected to the inner wall of one side of the storage slot, and an outer wall of the guide slide bar is slidably and interlacedly connected with the inner wall of the through-slot slot.

[0014] Preferably, the outer wall of the guide slide rod is sleeved with a push spring.

[0015] Technical effects and advantages of the utility model:

[0016] The utility model firstly arranges a filter basket in the feed pipe, and changes the flat net into a basket structure, so that after the solid impurities are blocked, they will be deposited at the bottom of the basket due to gravity, which will not hinder the entire water inlet process. At the same time, a quick-release part for connecting the filter basket and the feed pipe is arranged between the connection points of the two, so that it is convenient to dismantle and clean the filter basket, thereby making the filter structure more convenient to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the connection principle of the overall device of the utility model.

[0018] Figure 2 This is a schematic diagram of the structural connection between the feed pipe and the filter basket of the utility model.

[0019] Figure 3 This is a structural cross-sectional view of the connection between the feed pipe and the filter frame of the utility model.

[0020] In the figure: 1. crystallizer; 101. elutriation column; 102. feeding pipe; 103. reflux pipe; 2. condenser; 201. air guide pipe; 3. heater; 4. circulation pump; 5. feeding pipe; 6. flange; 7. filter basket; 701. filter tank; 702. filter hole; 8. extrusion block; 801. slot; 9. guide slide rod; 10. push spring. DETAILED DESCRIPTION

[0021] 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.

[0022] The utility model provides Figure 1-3 A high-salt wastewater concentration and crystallization treatment device shown includes a crystallizer 1 and a heater 3. A elution column 101 is arranged at the bottom of the crystallizer 1, a condenser 2 is arranged at the exhaust end of the crystallizer 1, and an air duct 201 is arranged between the exhaust end of the crystallizer 1 and the air inlet end of the condenser 2.

[0023] A circulation pump 4 is arranged between the feed end of the crystallizer 1 and the feed end of the heater 3, a reflux pipe 103 is arranged in the middle of the crystallizer 1, one end of the reflux pipe 103 away from the crystallizer 1 is connected to one of the feed ends of the circulation pump 4, and a feeding pipe 102 is arranged between the discharge end of the circulation pump 4 and the bottom of the crystallizer 1.

[0024] It should be noted that the connection design of the crystallizer 1, heater 3, condenser 2 and circulation pump 4 in this scheme is based on the DTB evaporation crystallization equipment with model sy. The lower part of the crystallizer 1 is connected to an elutriation column 101. The crystallizer 1 is provided with a guide tube and a cylindrical baffle. During operation, hot saturated liquid is continuously added to the lower part of the circulation tube, mixed with the mother liquor with small crystals in the circulation tube, and then pumped to the cooler. The cooled solution flows into the crystallizer 1 near the bottom of the guide tube and is sent to the liquid surface along the guide tube by a slowly rotating propeller. The solution evaporates and cools at the liquid surface to reach a supersaturated state, in which part of the solute is deposited on the surface of the suspended particles to make the crystals grow. A settling zone is also provided on the periphery of the annular baffle.

[0025] In the sedimentation zone, large particles settle, while small particles enter the circulation pipe with the mother liquor and are dissolved by heat. The crystals settle into the elutriation column 101 at the bottom of the crystallizer 1. In order to make the particle size of the crystallized product as uniform as possible, part of the mother liquor from the sedimentation zone is added to the bottom of the elutriation column 101, and the small particles are returned to the crystallizer 1 with the solution by hydraulic classification, and the second crystal product is discharged from the lower part of the elutriation column 101.

[0026] During the crystallization process, the supersaturation of the solution, the uniformity of the material temperature, the stirring speed and the cooling area are the decisive factors affecting the product grain size and appearance. The DTB crystallization device uses a special stirring paddle, and the temperature and stirring paddle speed are adjustable, which makes it easy to realize system self-control to meet the crystallization requirements of various materials.

[0027] The external feed port of the circulation pump 4 is provided with a feed pipe 5 , a filter basket 7 is provided in the feed pipe 5 , a filter tank 701 is provided in the middle of the filter basket 7 , and a plurality of filter holes 702 are provided at the bottom and sides of the filter tank 701 .

[0028] A quick-release piece for connecting the filter basket 7 and the feed pipe 5 is provided between the connection points thereof.

[0029] Specifically, a slot is provided at one end of the feed pipe 5 away from the circulation pump 4 , and a storage slot is provided on the side of the filter basket 7 . The slot is used to insert and store quick-release parts, and a flange 6 is provided on the outer wall of the feed pipe 5 .

[0030] Furthermore, the quick-release parts include:

[0031] An extrusion block 8, one end of which is slidably connected with the receiving groove, and the other end of which is connected with the card groove. A through-hole 801 is provided at one end of the extrusion block 8 close to the filter basket 7;

[0032] The guide slide bar 9 is fixedly connected to the inner wall of one side of the storage groove, and the outer wall of the guide slide bar 9 is slidably and interlacedly connected with the inner wall of the through-slot 801 .

[0033] Furthermore, a push spring 10 is sleeved on the outer wall of the guide slide rod 9 .

[0034] It should be noted that when disassembling, maintaining and cleaning the filter basket 7, after inserting the finger into the filter hole 702, pull in the direction away from the feed pipe 5, then the entire filter basket 7 can be pulled out, and the extrusion block 8 is no longer squeezed and will move in the direction away from the filter basket 7. Similarly, when installing the filter basket 7, squeeze in the direction close to the filter basket 7. At this time, the through slot 801 is aligned with the guide slide bar 9, so that during the movement of the extrusion block 8, the push spring 10 will be squeezed to shrink, and then the extrusion block 8 is aligned with the slot for clamping. In this way, the extrusion block 8 is pushed against the inner wall of the slot by the restoring force of the push spring 10, so that the filter basket 7 is clamped in the feed port of the feed pipe 5.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-salinity wastewater concentration and crystallization treatment device, comprising a crystallizer (1) and a heater (3), wherein a condenser (2) is provided at the exhaust end of the crystallizer (1), and a circulation pump (4) is provided between the feed end of the crystallizer (1) and the feed end of the heater (3), wherein: The external feed port of the circulation pump (4) is provided with a feed pipe (5), a filter basket (7) is provided inside the feed pipe (5), and a quick-release part for connecting the filter basket (7) and the feed pipe (5) is provided between the connection points of the two.

2. A high-salt wastewater concentration and crystallization treatment device according to claim 1, characterized in that: An elutriation column (101) is provided at the bottom of the crystallizer (1).

3. A high-salt wastewater concentration and crystallization treatment device according to claim 1, characterized in that: An air guide pipe (201) is provided between the exhaust end of the crystallizer (1) and the air inlet end of the condenser (2).

4. A high-salt wastewater concentration and crystallization treatment device according to claim 1, characterized in that: A reflux pipe (103) is provided in the middle of the crystallizer (1), and one end of the reflux pipe (103) away from the crystallizer (1) is connected to one of the feed ends of the circulation pump (4), and a feeding pipe (102) is provided between the discharge end of the circulation pump (4) and the bottom of the crystallizer (1).

5. A high-salt wastewater concentration and crystallization treatment device according to claim 1, characterized in that: A filter groove (701) is provided in the middle of the filter basket (7), and a plurality of filter holes (702) are provided at the bottom and sides of the filter groove (701).

6. A high-salinity wastewater concentration and crystallization treatment device according to claim 1, characterized in that: A slot is provided at one end of the feed pipe (5) away from the circulation pump (4), a storage slot is provided on the side of the filter basket (7), the slot is used for inserting and storing quick-release parts, and a flange (6) is provided on the outer wall of the feed pipe (5).

7. A high-salinity wastewater concentration and crystallization treatment device according to claim 6, characterized in that: The quick-release parts include: An extrusion block (8), one end of the extrusion block (8) being slidably connected to the receiving groove, the other end of the extrusion block (8) being connected to the card groove, and an end of the extrusion block (8) close to the filter basket (7) being provided with a through-hole (801); A guide slide bar (9) is fixedly connected to the inner wall of one side of the storage slot, and the outer wall of the guide slide bar (9) is slidably and interlacedly connected to the inner wall of the through slot (801).

8. A high-salinity wastewater concentration and crystallization treatment device according to claim 7, characterized in that: The outer wall of the guide slide rod (9) is sleeved with a push spring (10).

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