CN117658261A - Salt lake brine raffinate water treatment equipment and treatment method thereof - Google Patents

Abstract

The invention discloses salt lake brine raffinate water treatment equipment and a treatment method thereof, wherein the treatment equipment comprises a primary evaporator and a secondary evaporator, a primary evaporation heating control box for heating control is arranged at the bottom of the primary evaporator, a secondary evaporation heating control box for heating control is arranged at the bottom of the secondary evaporator, a raffinate water collecting box is connected at the position of a feed inlet of the primary evaporator, and an acid collecting box is connected at the position of an outlet at the upper end of the primary evaporator. The salt lake brine raffinate water treatment equipment and the treatment method thereof firstly carry out evaporation concentration, evaporate a small amount of acid, can be used for preparing acid in a back extraction process in an extraction process, then carry out secondary evaporation crystallization, the evaporated distilled water can be used for preparing auxiliary materials in each stage of the extraction process, and further carry out evaporation until crystallization, after solid-liquid separation, the part obtained by a crystallization kettle is sodium magnesium sulfuric acid, a small amount of phosphorus is also in the part, and the water treatment is more convenient and faster.

Description

A salt lake brine raffinate water treatment equipment and its treatment method

Technical field

The invention relates to the field of salt lake brine raffinate water treatment, and in particular to a salt lake brine raffinate water treatment equipment and a treatment method thereof.

Background technique

Salt lake brine raffinate water treatment equipment is a support equipment for purifying salt lake brine raffinate water. When carrying out salt lake brine raffinate extraction, the resulting raffinate water contains a small amount of phosphorus. Direct discharge does not comply with regulations and will cause great harm to the environment. Natural hazards require treatment before they can be discharged. With the continuous development of science and technology, people have higher and higher requirements for the manufacturing process of salt lake brine raffinate water treatment equipment.

There are certain disadvantages in the use of existing salt lake brine raffinate water treatment equipment. First, the raffinate brine generally contains a small amount of acid, a small amount of phosphorus and a large amount of salt. It cannot be easily and quickly treated in the raffinate water during treatment. Rapid treatment of acids, phosphorus, etc. is not conducive to people's use. In addition, when discharging salt lake brine raffinate water, phosphorus cannot be well prevented from entering the natural water, which has brought certain adverse effects to people's use. To this end, we propose a salt lake brine raffinate water treatment equipment and its treatment method.

Contents of the invention

Technical problem to be solved: In view of the shortcomings of the existing technology, the present invention provides a salt lake brine raffinate water treatment equipment and a treatment method thereof. Evaporation and concentration are first carried out to evaporate a small amount of acid, which can be used in the stripping process in the extraction process. Preparation of acid, followed by secondary evaporation and crystallization. The evaporated distilled water can be used to prepare auxiliary materials at each stage of the extraction process. Continue evaporation until crystallization. After solid-liquid separation, the part obtained from the crystallization kettle is sodium magnesium sulfate, and a small amount of phosphorus is also used. In this part, water treatment is more convenient and faster, and can effectively solve the problems in the background technology.

Technical solution: In order to achieve the above object, the technical solution adopted by the present invention is: a salt lake brine raffinate water treatment equipment, including a primary evaporator and a secondary evaporator. The bottom of the primary evaporator is equipped with a primary evaporator for heating control. Evaporation heating control box. A secondary evaporation heating control box for heating control is installed at the bottom of the secondary evaporator. A raffinate water collection box is connected to the feed port of the primary evaporator. The upper end of the primary evaporator The outlet position is connected to an acid collection box, the lower outlet of the primary evaporator is connected to the secondary evaporator, the upper outlet of the secondary evaporator is connected to an acid phosphorus collection box, and the lower outlet of the secondary evaporator is connected to A discharge box, a first heater is installed inside the primary evaporation heating control box at the bottom of the primary evaporator, and a second heater is installed inside the secondary evaporation heating control box at the bottom of the secondary evaporator.

As a preferred technical solution of the present application, a feeding pipe is connected through the primary evaporator and the raffinate water collection box, and a feeding pump and a feed flow meter are connected through the feeding pipe. The feed flow meter monitors the feed amount inside the primary evaporator, and a liquid level flow meter for flow monitoring is installed inside the primary evaporator.

As a preferred technical solution of the present application, a liquid suction pipe is connected between the primary evaporator and the acid collection box, and a liquid suction fan is positioned at the position where the liquid suction pipe is connected to the primary evaporator. The liquid suction fan A liquid suction probe is positioned at the end, and the liquid suction probe extends into the interior of the primary evaporator. An acid liquid monitor for liquid level monitoring is installed in the acid collection box.

As a preferred technical solution of the present application, a flow pipe is connected between the bottom of the primary evaporator and the secondary evaporator, and a filter screen and a liquid outlet valve are provided at the position where the primary evaporator is connected to the flow pipe. The filter screen is positioned inside the primary evaporator, the liquid outlet valve is positioned outside the primary evaporator, and the flow tube is provided with an infusion flow meter for flow monitoring.

As a preferred technical solution of the present application, a driving pump is installed at the top of the secondary evaporator, and a telescopic rod is provided at the bottom of the driving pump. The bottom of the telescopic rod is connected to a solid-liquid separation net, so The solid-liquid separation net can extend into the bottommost position of the secondary evaporator, and the driving pump drives the telescopic rod and drives the solid-liquid separation net to move up and down inside the secondary evaporator.

As a preferred technical solution of the present application, a waste suction pipe is connected between the secondary evaporator and the acid phosphorus collection box, and a waste suction fan is positioned outside the secondary evaporator where the waste suction pipe is connected. A waste suction port is provided at the end of the waste suction fan, and the waste suction port is connected with the secondary evaporator. A sealed inner box is positioned inside the acid phosphorus collection box, and a device for feeding monitoring is installed in the acid phosphorus collection box. Acid phosphorus monitor.

As a preferred technical solution of this application, a discharge pipe is connected between the secondary evaporator and the discharge box, a crystallization filter screen and a discharge valve are connected between the secondary evaporator and the discharge pipe, and the discharge box A discharge monitor for liquid level monitoring is installed inside.

As a preferred technical solution of the present application, the primary evaporation heating control box and the secondary evaporation heating control box are both provided with a display panel and a control panel for temperature display and control.

A treatment method for salt lake brine raffinate water treatment equipment, including the following steps:

S1: Concentrate the salt lake brine raffinate water, pump it evenly into the evaporator, evaporate and concentrate, evaporate a small amount of acid, and collect the acid, which can be used for the preparation of acid in the stripping process during the extraction process;

S2: The evaporated solution is pumped into the secondary evaporator for secondary evaporation and crystallization. The evaporated distilled water can be used for the preparation of auxiliary materials at each stage of the extraction process;

S3: Continue evaporation until crystallization, and perform solid-liquid separation operation. After solid-liquid separation, the part obtained from the crystallization kettle is sodium magnesium sulfuric acid, and a small amount of phosphorus is also in this part, and the liquid in it is collected and discharged.

Beneficial effects: Compared with the prior art, the present invention provides a salt lake brine raffinate water treatment equipment and a treatment method thereof, which have the following beneficial effects: the salt lake brine raffinate water treatment equipment and a treatment method thereof are first carried out Evaporate and concentrate, evaporating a small amount of acid, which can be used to prepare the acid in the back-extraction process during the extraction process. Afterwards, secondary evaporation and crystallization are performed. The evaporated distilled water can be used to prepare auxiliary materials at each stage of the extraction process. Continue evaporation until crystallization and solidification. After the liquid is separated, the part obtained from the crystallization kettle is sodium magnesium sulfuric acid, and a small amount of phosphorus is also in this part. Water treatment is more convenient and faster. The entire salt lake brine raffinate water treatment equipment has a simple structure and is easy to operate. The effect of use is compared with the traditional one. Way better.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of a salt lake brine raffinate water treatment equipment and its treatment method according to the present invention.

Figure 2 is a schematic structural diagram of a primary evaporator in a salt lake brine raffinate water treatment equipment and its treatment method according to the present invention.

Figure 3 is a schematic structural diagram of the connection between the primary evaporator and the secondary evaporator in a salt lake brine raffinate water treatment equipment and its treatment method according to the present invention.

Figure 4 is a schematic structural diagram of a secondary evaporator in a salt lake brine raffinate water treatment equipment and its treatment method according to the present invention.

Figure 5 is a schematic structural diagram of an acid phosphorus collection box in a salt lake brine raffinate water treatment equipment and its treatment method according to the present invention.

Figure 6 is a schematic structural diagram of a discharge box in a salt lake brine raffinate water treatment equipment and its treatment method according to the present invention.

In the picture: 1. Primary evaporation heating control box; 2. raffinate water collection box; 3. Primary evaporator; 4. Acid collection box; 5. Secondary evaporator; 6. First heater; 7. Circulation tube; 8. Secondary evaporation heating control box; 9. Second heater; 10. Discharge box; 11. Acid phosphorus collection box; 12. Feed pump; 13. Feed pipe; 14. Feed flow meter; 15. Liquid position flow meter; 16. Display panel; 17. Control panel; 18. Filter; 19. Discharge valve; 20. Acid monitor; 21. Suction probe; 22. Suction fan; 23. Suction pipe; 24. Infusion flow meter; 25. Drive pump; 26. Telescopic rod; 27. Solid-liquid separation net; 28. Waste suction fan; 29. Crystallization filter; 30. Discharge valve; 31. Waste suction port; 32. Waste suction Pipe; 33. Acid and phosphorus monitor; 34. Sealed inner box; 35. Discharge pipe; 36. Discharge monitor.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific implementation modes. However, those skilled in the art will understand that the following described embodiments are some of the embodiments of the present invention, rather than all of them. They are only used to illustrate the invention and should not be construed as limiting the scope of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention. If the specific conditions are not specified in the examples, the conditions should be carried out according to the conventional conditions or the conditions recommended by the manufacturer. If the manufacturer of the reagents or instruments used is not indicated, they are all conventional products that can be purchased commercially.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limitations of the invention. Furthermore, the terms “first”, “second” and “third” are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

As shown in Figure 1-6, a salt lake brine raffinate water treatment equipment includes a primary evaporator 3 and a secondary evaporator 5. The bottom of the primary evaporator 3 is equipped with a primary evaporation heating control box 1 for heating control. A secondary evaporation heating control box 8 for heating control is installed at the bottom of the secondary evaporator 5. The feed inlet of the primary evaporator 3 is connected to a raffinate water collection box 2, and the upper outlet of the primary evaporator 3 is connected to an acid collection box. 4. The lower outlet of the primary evaporator 3 is connected to the secondary evaporator 5. The upper outlet of the secondary evaporator 5 is connected to the acid phosphorus collection box 11. The lower outlet of the secondary evaporator 5 is connected to the discharge box 10. The primary evaporation heating A first heater 6 is installed inside the control box 1 at the bottom of the primary evaporator 3. A second heater 9 is installed inside the secondary evaporation heating control box 8 at the bottom of the secondary evaporator 5. Evaporation and concentration are performed first. A small amount of acid is evaporated, which can be used to prepare the acid in the back-extraction process during the extraction process, and then undergoes secondary evaporation and crystallization. The evaporated distilled water can be used to prepare auxiliary materials at each stage of the extraction process, and continues to evaporate until crystallization. After solid-liquid separation, , the part obtained from the crystallization kettle is sodium magnesium sulfuric acid, and a small amount of phosphorus is also in this part, making water treatment more convenient and faster.

Further, a feed pipe 13 is connected through the primary evaporator 3 and the raffinate water collection box 2. A feed pump 12 and a feed flow meter 14 are connected through the feed pipe 13. The feed flow meter 14 monitors once. The amount of feed inside the evaporator 3, a liquid level flow meter 15 for flow monitoring is installed inside the primary evaporator 3.

Further, a liquid suction pipe 23 is connected between the primary evaporator 3 and the acid collection box 4. A liquid suction fan 22 is positioned on the primary evaporator 3 where the liquid suction pipe 23 is connected. A liquid suction fan 22 is positioned at the end of the liquid suction fan 22. The probe 21 , and the liquid suction probe 21 extends into the interior of the primary evaporator 3 , and an acid liquid monitor 20 for liquid level monitoring is installed in the acid collection box 4 .

Further, a flow pipe 7 is connected between the bottom of the primary evaporator 3 and the secondary evaporator 5. A filter screen 18 and a liquid outlet valve 19 are provided at the position where the primary evaporator 3 is connected to the flow pipe 7. The filter screen 18 is positioned at the primary evaporator 3. Inside the evaporator 3, the liquid outlet valve 19 is positioned outside the primary evaporator 3, and the flow pipe 7 is provided with an infusion flow meter 24 for flow monitoring.

Further, a driving pump 25 is installed at the top of the secondary evaporator 5, and a telescopic rod 26 is provided at the bottom of the driving pump 25. The bottom of the telescopic rod 26 is connected to a solid-liquid separation net 27, and the solid-liquid separation net 27 can be extended into At the bottom position of the secondary evaporator 5, the driving pump 25 drives the telescopic rod 26 and drives the solid-liquid separation net 27 to move up and down inside the secondary evaporator 5.

Further, a waste suction pipe 32 is connected between the secondary evaporator 5 and the acid phosphorus collection box 11. A waste suction fan 28 is positioned outside the secondary evaporator 5 where the waste suction pipe 32 is connected. The waste suction fan 28 is provided at its end. There is a waste suction port 31, and the waste suction port 31 is connected with the secondary evaporator 5. A sealed inner box 34 is positioned inside the acid phosphorus collection box 11, and an acid phosphorus monitor for feeding monitoring is installed in the acid phosphorus collection box 11. 33.

Further, a discharge pipe 35 is connected between the secondary evaporator 5 and the discharge box 10, a crystallization filter 29 and a discharge valve 30 are connected between the secondary evaporator 5 and the discharge pipe 35, and a discharge valve 30 is installed inside the discharge box 10. Discharge monitor 36 for liquid level monitoring.

Furthermore, both the primary evaporation heating control box 1 and the secondary evaporation heating control box 8 are provided with a display panel 16 and a control panel 17 for temperature display and control.

A treatment method for salt lake brine raffinate water treatment equipment, including the following steps:

S1: Concentrate the salt lake brine raffinate water, pump it evenly into the evaporator, evaporate and concentrate, evaporate a small amount of acid, and collect the acid, which can be used for the preparation of acid in the stripping process during the extraction process;

S2: The evaporated solution is pumped into the secondary evaporator for secondary evaporation and crystallization. The evaporated distilled water can be used for the preparation of auxiliary materials at each stage of the extraction process;

S3: Continue evaporation until crystallization, and perform solid-liquid separation operation. After solid-liquid separation, the part obtained from the crystallization kettle is sodium magnesium sulfuric acid, and a small amount of phosphorus is also in this part, and the liquid in it is collected and discharged.

Working principle: The invention includes a primary evaporation heating control box 1, a raffinate water collection box 2, a primary evaporator 3, an acid collection box 4, a secondary evaporator 5, a first heater 6, a circulation tube 7, and a secondary evaporation heating Control box 8, second heater 9, discharge box 10, acid phosphorus collection box 11, feeding pump 12, feeding pipe 13, feed flow meter 14, liquid level flow meter 15, display panel 16, control panel 17, Filter 18, liquid outlet valve 19, acid monitor 20, suction probe 21, suction fan 22, suction pipe 23, infusion flow meter 24, drive pump 25, telescopic rod 26, solid-liquid separation net 27, suction Waste fan 28, crystallization filter 29, discharge valve 30, waste suction port 31, waste suction pipe 32, acid phosphorus monitor 33, sealed inner box 34, discharge pipe 35 and discharge monitor 36 are used to conduct the salt lake brine extraction raffinate water Concentrate and evenly pump it into the evaporator for evaporation and concentration, evaporate a small amount of acid, and collect and process the acid, which can be used to prepare the acid in the stripping process during the extraction process; the evaporated solution is pumped into the secondary evaporator for further processing. Secondary evaporation and crystallization, the evaporated distilled water can be used for the preparation of auxiliary materials at each stage of the extraction process; continue evaporation until crystallization, and perform solid-liquid separation operation. After solid-liquid separation, the part obtained from the crystallization kettle is sodium magnesium sulfate, and a small amount of phosphorus is also In this section, the liquid is collected and drained.

It should be noted that in this article, relational terms such as first and second (No. 1, No. 2), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or sequence between such entities or operations. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or apparatus that includes the stated element.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have other aspects. Various changes and modifications are possible, which fall within the scope of the claimed invention.

Claims (9)

1. The utility model provides a salt lake brine raffinate water treatment facility, includes primary evaporator (3) and secondary evaporator (5), its characterized in that: the utility model discloses a secondary evaporation heating control box, including primary evaporator (3), secondary evaporation heating control box (8), primary evaporator (3), acid collecting box (4), secondary evaporator (5) are installed to the bottom of primary evaporator (3), secondary evaporator (5)'s upper end export is connected with acid collecting box (4), secondary evaporator (5)'s upper end export is connected with sour phosphorus collecting box (11), secondary evaporator (5)'s lower extreme exit linkage has discharge case (10), primary evaporation heating control box (1) inside bottom position that is located primary evaporator (3) installs first heater (6), secondary evaporation heating control box (8) inside bottom position that is located secondary evaporator (5) installs second heater (9).

2. A salt lake brine raffinate water treatment apparatus as claimed in claim 1, wherein: the utility model discloses a liquid level meter (15) that is used for flow monitoring, including primary evaporator (3) and raffinate collecting box (2), be connected with conveying pipeline (13) in the link joint between primary evaporator (3) and raffinate collecting box (2), be connected with conveying pump (12) and feeding flowmeter (14) in the link joint on conveying pipeline (13), feeding flowmeter (14) monitor the inside feeding amount of primary evaporator (3), the internally mounted of primary evaporator (3) has liquid level meter (15) that are used for flow monitoring.

3. A salt lake brine raffinate water treatment apparatus as claimed in claim 1, wherein: be connected with pipette (23) between primary evaporator (3) and acid collecting box (4), the position that connects pipette (23) on primary evaporator (3) is located and is had imbibition fan (22), imbibition probe (21) are located to imbibition fan (22) tip, and imbibition probe (21) stretch into the inside of primary evaporator (3), install in acid collecting box (4) and be used for acidizing fluid monitor (20) of liquid level monitoring.

4. A salt lake brine raffinate water treatment apparatus as claimed in claim 1, wherein: the utility model discloses a disposable evaporator, including disposable evaporator (3), secondary evaporator (5), filter screen (18) and drain valve (19) are provided with in the position of connecting runner pipe (7) in disposable evaporator (3), filter screen (18) location is in the inboard of disposable evaporator (3), drain valve (19) location is in the outside of disposable evaporator (3), be provided with infusion flowmeter (24) that are used for flow monitoring on runner pipe (7).

5. A salt lake brine raffinate water treatment apparatus as claimed in claim 1, wherein: the utility model discloses a secondary evaporator, including secondary evaporator (5), actuating pump (25) are installed at the top position in the secondary evaporator (5), the bottom of actuating pump (25) is provided with telescopic link (26), the bottom of telescopic link (26) is connected with solid-liquid separation net (27), solid-liquid separation net (27) can stretch into the bottommost position of secondary evaporator (5), actuating pump (25) drive telescopic link (26) and drive solid-liquid separation net (27) at the inside lift activity of secondary evaporator (5).

6. A salt lake brine raffinate water treatment apparatus as claimed in claim 1, wherein: waste suction pipe (32) is connected between secondary evaporator (5) and sour phosphorus collecting box (11), waste suction fan (28) is located in the position that waste suction pipe (32) is connected in secondary evaporator (5) outside, waste suction fan (28) tip is provided with inhales waste opening (31), and inhales waste opening (31) and link up with secondary evaporator (5), the inside location of sour phosphorus collecting box (11) has sealed inner box (34), install sour phosphorus monitor (33) that are used for the feeding monitoring in sour phosphorus collecting box (11).

7. A salt lake brine raffinate water treatment apparatus as claimed in claim 1, wherein: a discharge pipe (35) is connected between the secondary evaporator (5) and the discharge box (10), a crystallization filter screen (29) and a discharge valve (30) are connected between the secondary evaporator (5) and the discharge pipe (35), and a discharge monitor (36) for monitoring the liquid level is arranged in the discharge box (10).

8. A salt lake brine raffinate water treatment apparatus as claimed in claim 1, wherein: the primary evaporation heating control box (1) and the secondary evaporation heating control box (8) are respectively provided with a display panel (16) and a control panel (17) for displaying and controlling the temperature.

9. A treatment method of salt lake brine raffinate water treatment equipment is characterized by comprising the following steps of: the method comprises the following operation steps:

s1: concentrating salt lake brine raffinate, uniformly pumping into an evaporator, evaporating and concentrating, evaporating a small amount of acid, collecting and treating the acid, and preparing the acid in a back extraction process in the extraction process;

s2: pumping the evaporated solution into a secondary evaporator for secondary evaporation crystallization, wherein distilled water obtained by evaporation can be used for preparing auxiliary materials at each stage in an extraction process;

s3: and evaporating until crystallization is carried out, carrying out solid-liquid separation, and collecting and discharging liquid in a part of sodium magnesium sulfuric acid which is obtained by the crystallization kettle and small amount of phosphorus.