Micro-evaporation reactor for high-salinity wastewater

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a micro-evaporation reactor for high-salinity wastewater, which comprises a tank body, a feed port and a water outlet are arranged on the upper side of the tank body, a fixed seat is arranged on the outer side of the lower half part of the tank body, a settling tank is arranged at the bottom of the tank body, and a water outlet is arranged on one side of the settling tank. A non-return device is arranged on the lower side of the settling tank, and a gas tank is arranged on one side of the non-return device; an air inlet valve is arranged on the air tank, a piston is arranged on the inner side of the air tank, a push rod is arranged on one side of the air tank, a pressure spring and a spring rod are arranged in the non-return device, one end of the spring rod extends into the settling tank, and the top end of the spring rod is connected with a sealing cover; the air tank is arranged, the volume is changed through the piston, pulse airflow is formed, the pulse airflow is pumped into the tank body through the non-return device, the inner wall of the tank body is scoured and cleaned through water shaking and spray formed by the liquid level, meanwhile, damage to a coating on the inner wall of the tank body caused by high-strength impact is avoided, and the service life of the tank body is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field especially relates to a kind of micro-evaporation reactors for high-salinity wastewater. BACKGROUND

[0002] High-salinity wastewater treatment method has evaporation method, electrolytic method, membrane separation method, incineration method and biological method etc..Among them, evaporation method is a method for concentrating and separating salt by heating to evaporate water.It includes multistage flash evaporation, multiple-effect evaporation and mechanical vapor recompression technology etc..The salt content of the wastewater accumulated inside the reactor for treating high-salinity wastewater increases after a period of use, and there are precipitates, which affect the subsequent wastewater treatment, so it needs to be cleaned regularly.In the prior art, the high-salinity wastewater treatment tank is flushed by ultrasonic wave or high-pressure water flow, which is high in cost and can damage the coating on the inner wall of the tank, affecting the service life of the tank.If titanium, palladium, rhodium or other precious metals are used, the cost of equipment investment is higher, which affects production efficiency. SUMMARY

[0003] The utility model aims at solving the shortcomings in the prior art and provides a micro-evaporation reactor for high-salinity wastewater.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A micro-evaporation reactor for high-salinity wastewater includes a tank body, a feed inlet and a water outlet are arranged on the upper side of the tank body, a fixing seat is arranged on the outer side of the lower half of the tank body, a sediment tank is arranged at the bottom of the tank body, a drain port is arranged on one side of the sediment tank, a check valve is arranged on the lower side of the sediment tank, and a gas tank is arranged on one side of the check valve;an air inlet valve is arranged on the gas tank, a piston is arranged on the inner side of the gas tank, a push rod is arranged on one side of the gas tank, a compression spring and a spring rod are arranged in the check valve, one end of the spring rod extends into the sediment tank, and the top end of the spring rod is connected with a sealing cover.

[0006] Preferably, an exhaust pipe is arranged on the top of the tank body, and a high-temperature-resistant anticorrosive coating is arranged on the inner wall of the tank body.

[0007] Preferably, the diameter of the sediment tank is 0.3-0.5 times the diameter of the tank body, the sediment tank is in communication with the tank body, and the bottom of the sediment tank is in a semispherical shape.

[0008] Preferably, a gas hole corresponding to the spring rod is arranged on the bottom of the sediment tank, the sediment tank is in communication with the check valve through the gas hole, and the check valve and the air inlet valve are both in communication with the rodless cavity of the gas tank.

[0009] Preferably, the compression spring abuts against the spring rod, the sealing cover is arranged corresponding to the gas hole, and the sealing cover abuts against the bottom of the sediment tank.

[0010] Preferably, the piston is adapted to the inner wall of the gas tank, and a sealing ring is provided between the piston and the gas tank.

[0011] The beneficial effects of this utility model are as follows:

[0012] Compared with the prior art, this utility model sets up a gas tank, which changes the volume through a piston to form a pulsed airflow. The airflow is pumped into the tank through a check valve, and the water sloshes. The waves formed on the liquid surface wash and clean the inner wall of the tank. At the same time, it avoids damage to the coating of the inner wall of the tank caused by high-intensity impact, thus improving the service life of the tank. In addition, a low-cost coating can be used to reduce the equipment investment cost. Attached Figure Description

[0013] Fig. 1 This is a three-dimensional structural schematic diagram of a micro-evaporation reactor for high-salt wastewater proposed in this utility model;

[0014] Fig. 2 This is a schematic diagram of the main structure of a micro-evaporation reactor for high-salt wastewater proposed in this utility model;

[0015] Fig. 3 This is a partial structural schematic diagram of a micro-evaporation reactor for high-salt wastewater proposed in this utility model.

[0016] In the diagram: 1. Tank body; 10. Exhaust pipe; 2. Water outlet; 3. Fixing base; 4. Feed inlet; 5. Sedimentation tank; 51. Drain outlet; 52. Sealing cover; 6. Gas tank; 61. Air inlet valve; 62. Piston; 63. Push rod; 7. Check valve; 71. Compression spring; 72. Spring rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Reference Figs. 1-3The utility model provides a kind of micro-evaporation reactor for high-salinity wastewater, including tank body 1, tank body 1 upper side is equipped with feed inlet 4 and water outlet 2, realize the feeding and discharge of wastewater, after organic wastewater mixes oxygen or ozone, enter tank body 1 and carry out oxidation reaction, complete decomposition under micro-evaporation micro-boiling state, and treated wastewater is discharged through water outlet 2, if wastewater contains higher salt, in the process of evaporation, the salt content of wastewater in tank body 1 rises, until crystallization is separated out, and precipitate in the bottom of tank body 1, or adhere to the inner wall of tank body 1, to ensure that tank body 1 works normally, avoid blocking pipeline, therefore need to clean tank body 1 regularly, tank body 1 top is equipped with exhaust pipe 10, for discharging steam and gas generated after evaporation or decomposition, tank body 1 inner wall is equipped with high-temperature resistant anticorrosive coating, prolongs the service life of tank body 1, ensure that oxidation reaction carries out normally, tank body 1 lower half outer side is equipped with fixed seat 3, heating device is arranged in fixed seat 3.

[0019] Tank body 1 bottom is equipped with sediment tank 5, the diameter of sediment tank 5 is 0.3-0.5 times of the diameter of tank body 1, generally preferably 0.5 times, neck mouth is shrunk, for gathering sediment, facilitate recycling, sediment tank 5 is communicated with tank body 1, the bottom of sediment tank 5 is semispherical, one side of sediment tank 5 is equipped with drain 51, for discharging wastewater containing sediment, facilitate cleaning tank body 1 regularly, the lower side of sediment tank 5 is equipped with check valve 7, one side of check valve 7 is equipped with gas tank 6, avoid backflow of wastewater, realize one-way air intake;

[0020] Gas tank 6 is equipped with inlet valve 61, realize one-way air intake, the inner side of gas tank 6 is equipped with piston 62, piston 62 is adapted with the inner wall of gas tank 6, sealing ring is arranged between piston 62 and gas tank 6, one side of gas tank 6 is equipped with push rod 63, push rod 63 is driven by electricity or hydraulic pressure, control piston 62 slides in gas tank 6, volume changes, pump air;

[0021] Check valve 7 is equipped with compression spring 71 and spring rod 72, gas hole corresponding with spring rod 72 is formed in the bottom of sediment tank 5, facilitate gas flow, sediment tank 5 is communicated with check valve 7 through gas hole, check valve 7 and inlet valve 61 are all communicated with rodless cavity of gas tank 6, one end of spring rod 72 extends into sediment tank 5, the top end of spring rod 72 is connected with sealing cover 52, compression spring 71 abuts with spring rod 72, sealing cover 52 is arranged corresponding with gas hole, sealing cover 52 abuts with the bottom of sediment tank 5, sealing cover 52 is pressed on the bottom of sediment tank 5 by compression spring 71, realize sealing, also avoid water backflow through gas hole by water pressure, realize one-way air intake, according to need, the bottom of check valve 7 can be holed, sealed by screw plug, facilitate to clean accumulated water, a small amount of accumulated water does not need to be treated, does not affect the work of piston 62, normal air supply, accumulated water contacts the sealing ring of piston 62, also can improve sealing effect.

[0022] In this embodiment, after the tank body 1 is used for a period of time, the bottom deposits and the precipitated salt crystals, the side drain port 51 of the precipitation tank 5 is opened, the waste water is discharged, and is processed separately, is filtered or is neutralized by acid and alkali, the clean water is injected into the tank body 1 through the feed port 4, the treated waste water or the distilled water after cooling is discharged, until the water surface reaches the water outlet 2, the push rod 63 controls the piston 62 to move, air is extracted and pumped into the precipitation tank 5 through the check valve 7, the bubbles float and burst, the water surface fluctuates, and the waves are formed, the inner wall surface of the tank body 1 is washed, meanwhile, the coating lining is prevented from being damaged, the liquid level is continuously adjusted, different positions are washed, until the cleaning is completed, and then the normal work is maintained;

[0023] In addition, in daily work, the gas injection and wave making can be quickly performed to wash the inner wall of the tank body 1, the flow of the feed port 4 is controlled, the waste water liquid level in the tank body 1 is changed, different positions are washed, and the tank body 1 is ensured to be clean, and the deposits and the wall attachments are cleaned in time.

[0024] The above merely describes a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

[0025] It is to be noted that the terms used herein are merely for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprise" and / or "include" when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof.

[0026] The relative arrangement of components and steps, numerical expressions, and values set forth in these embodiments do not limit the scope of the utility model, unless otherwise specified. Meanwhile, it should be understood that the sizes of various parts shown in the drawings are not drawn in accordance with the actual proportional relationship for the convenience of description. The technology, methods and devices known to those skilled in the related art can not be discussed in detail, but should be considered as part of the authorized specification under appropriate circumstances. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

Claims

1. A micro-evaporation reactor for high-salinity wastewater, comprising a tank body (1), characterized in that, The tank body (1) is provided with an inlet (4) and a water outlet (2) on the top, a fixing seat (3) on the lower half of the outer side, a sediment tank (5) on the bottom, a drain (51) on one side of the sediment tank (5), a check valve (7) on the lower side of the sediment tank (5), and a gas tank (6) on one side of the check valve (7). The gas tank (6) is provided with an air inlet valve (61) on the top, a piston (62) on the inner side, and a push rod (63) on one side. The check valve (7) is provided with a compression spring (71) and a spring rod (72) inside. One end of the spring rod (72) extends into the sediment tank (5), and the top end of the spring rod (72) is connected with a sealing cover (52).

2. The microevaporation reactor for high-salinity wastewater according to claim 1, characterized in that, The tank body (1) is provided with an exhaust pipe (10) on the top, and a high-temperature-resistant anticorrosive coating on the inner wall.

3. The microevaporation reactor for high-salinity wastewater according to claim 1, characterized in that, The diameter of the sediment tank (5) is 0.3-0.5 times the diameter of the tank body (1), the sediment tank (5) is communicated with the tank body (1), and the bottom of the sediment tank (5) is in a semispherical shape.

4. The microevaporation reactor for high-salinity wastewater according to claim 3, characterized by, The bottom of the sediment tank (5) is provided with an air hole corresponding to the spring rod (72), the sediment tank (5) is communicated with the check valve (7) through the air hole, and the check valve (7) and the air inlet valve (61) are both communicated with the rodless cavity of the gas tank (6).

5. The microevaporation reactor for high-salinity wastewater according to claim 4, characterized in that, The compression spring (71) is in abutment with the spring rod (72), the sealing cover (52) is correspondingly arranged with the air hole, and the sealing cover (52) is in abutment with the bottom of the sediment tank (5).

6. The microevaporation reactor for high-salinity wastewater according to claim 1, characterized in that, The piston (62) is adapted to the inner wall of the gas tank (6), and a sealing ring is arranged between the piston (62) and the gas tank (6).

Images