A skid-mounted unit integrating low-temperature concentration and heat pump crystallization

Abstract

This application belongs to the field of skid-mounted equipment manufacturing technology, specifically a skid-mounted equipment integrating low-temperature concentration and heat pump crystallization, including a DTRO unit, a raw material tank, an air compressor, a low-temperature heat pump concentration unit, a chiller, a centrifuge, a heat pump crystallization unit, and a centrifugal mother liquor tank. The raw material tank is located at the rear of the DTRO unit, and the discharge end of the DTRO unit is connected to the inlet end of the raw material tank through a connecting mechanism. A rotating component is provided inside the raw material tank. The air compressor is located on the right side of the DTRO unit, and the output end of the air compressor is connected to the inlet end of the raw material tank through a connecting mechanism. The chiller is located at the rear of the DTRO unit, and the low-temperature heat pump concentration unit is located on the left side of the chiller. This application adopts a connecting mechanism to ensure that the connected pipelines of multiple devices can be easily disassembled during transportation, and the pipelines can be easily reconnected after transportation to the usage location, achieving the effect of saving disassembly and transportation time.

Description

Technical Field

[0001] This application belongs to the field of skid-mounted equipment manufacturing technology, specifically a skid-mounted equipment integrating low-temperature concentration and heat pump crystallization. Background Technology

[0002] Waste liquid refers to liquid substances generated in industrial production, scientific research, daily life, or other activities that no longer have their original use value and are therefore discarded.

[0003] Currently, in order to treat wastewater and better classify and treat the waste it contains, multi-stage treatment of waste liquid is often required. However, if only a single treatment device is used, the treatment may not be adequate.

[0004] Since multiple devices often need to be connected to each other via flanges during use, disassembly, assembly, and transportation often take a lot of time and are quite troublesome. Therefore, a skid-mounted device integrating low-temperature concentration and heat pump crystallization is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this application is to address the shortcomings of existing technologies by designing a skid-mounted device that integrates low-temperature concentration and heat pump crystallization, using a connecting mechanism to connect the pipes between various components, thus solving the problem of excessive time consumption during disassembly, assembly, and transportation.

[0006] To achieve the above objectives, the following technical solution is adopted:

[0007] A skid-mounted unit integrating low-temperature concentration and heat pump crystallization includes a DTRO unit, a stock solution tank, an air compressor, a low-temperature heat pump concentration unit, a chiller, a centrifuge, a heat pump crystallization unit, and a centrifugal mother liquor tank. The stock solution tank is located at the rear of the DTRO unit, and the discharge end of the DTRO unit is connected to the inlet end of the stock solution tank via a connecting mechanism. A rotating assembly is provided inside the stock solution tank. The air compressor is located on the right side of the DTRO unit, and its output end is connected to the inlet end of the stock solution tank via a connecting mechanism. The chiller is located at the rear of the DTRO unit. The low-temperature heat pump concentration equipment is located on the left side of the chiller. The outlet of the chiller is connected to the cold liquid inlet of the low-temperature heat pump concentration equipment via a connecting mechanism. The outlet of the raw liquid tank is connected to the feed inlet of the low-temperature heat pump concentration equipment via a connecting mechanism. The centrifuge is located on the left side of the low-temperature heat pump concentration equipment. The output of the low-temperature heat pump concentration equipment is connected to the input of the centrifuge via a connecting mechanism. The outlet of the centrifuge is connected to the feed inlet of the centrifugal mother liquor tank via a connecting mechanism. The outlet of the centrifugal mother liquor tank is connected to the feed inlet of the heat pump crystallization equipment via a connecting mechanism.

[0008] Preferably, the rotating assembly includes a motor, the output shaft of which passes through the inner wall of the raw liquid tank and is fixedly connected to a rotating rod, and a stirring blade is fixedly connected to the outer wall of the rotating rod.

[0009] Preferably, the connecting mechanism includes a connecting pipe, a stop ring, a moving block, and a locking block. The stop ring is fixedly connected to the inner wall of the connecting pipe, and a pressure chamber is formed on the outer wall of the connecting pipe. The moving block is piston-connected to the inner wall of the pressure chamber. The side of the moving block away from the axis of the connecting pipe is fixedly connected to the inner circumferential surface of the locking block. The inner circumferential surface of the locking block is threadedly connected to the outer circumferential surface of the connecting pipe. An air bladder is fixedly connected to the inner circumferential surface of the connecting pipe, and the air bladder communicates with the pressure chamber.

[0010] Preferably, it also includes an acid tank and an alkali tank, wherein the alkali tank is located to the right of the centrifugal mother liquor tank and at a predetermined distance from the centrifugal mother liquor tank, and the acid tank is located to the right of the alkali tank and at a predetermined distance from the alkali tank.

[0011] Preferably, the inner circumferential surface of the locking block is in contact with the outer circumferential surface of the connecting pipe.

[0012] Preferably, the outer wall of the movable block is arc-shaped, and the outer wall of the movable block is in contact with the inner wall of the air pressure chamber.

[0013] Preferably, the air chamber is an arc shape with an angle of less than 360 degrees and greater than 180 degrees, and the airbag is annular.

[0014] Preferably, the number of airbags is set to two, and the two airbags are arranged on the upper and lower sides of the abutment ring, with a preset distance between the airbags and the abutment ring.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] 1. This application, through the setting of the connecting mechanism, ensures that when multiple devices are transported, their connected pipes can be easily disassembled, and after being transported to the place of use, their pipes can be easily reconnected, thereby saving disassembly and transportation time.

[0017] 2. This application adopts a multi-equipment, step-by-step treatment method, which enables the waste liquid to be better screened and treated with the cooperation of multiple equipment, thereby improving treatment efficiency, treatment quality and enhancing screening effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure in this application;

[0019] Figure 2 This is a cross-sectional schematic diagram of the original liquid tank in this application;

[0020] Figure 3This is a schematic diagram of the connecting mechanism in this application;

[0021] Figure 4 This is a cross-sectional schematic diagram of the connecting mechanism in this application;

[0022] Figure 5 This is a side sectional view of the connecting mechanism in this application;

[0023] Figure 6 for Figure 5 Enlarged diagram of point A in the middle.

[0024] The components include: 1. DTRO equipment; 2. Raw material tank; 3. Connecting mechanism; 4. Rotating assembly; 5. Air compressor; 6. Low-temperature heat pump concentration equipment; 7. Chiller; 8. Centrifuge; 9. Heat pump crystallization equipment; 10. Centrifugal mother liquor tank; 41. Motor; 42. Rotating rod; 43. Stirring blade; 31. Connecting pipe; 32. Pipe ring; 33. Pressure chamber; 34. Moving block; 35. Locking block; 36. Airbag; 11. Acid tank; 12. Alkali tank. Detailed Implementation

[0025] Reference Figure 1 - Figure 6A skid-mounted device integrating low-temperature concentration and heat pump crystallization includes a DTRO unit 1, a raw liquid tank 2, an air compressor 5, a low-temperature heat pump concentration unit 6, a chiller 7, a centrifuge 8, a heat pump crystallization unit 9, and a centrifugal mother liquor tank 10. The raw liquid tank 2 is located behind the DTRO unit 1. The discharge end of the DTRO unit 1 is connected to the feed end of the raw liquid tank 2 via a connecting mechanism 3. A rotating component 4 is installed inside the raw liquid tank 2. The raw liquid tank 2 is used to receive the waste liquid processed by the DTRO unit 1 and cooperates with the air compressor 5 and the rotating component 4 to achieve a filament aeration effect. The air compressor 5 is located on the right side of the DTRO unit 1 and is used to add compressed air into the raw liquid tank 2. The output end of the air compressor 5 is connected to the feed end of the raw liquid tank 2 via a connecting mechanism 3. The chiller 7 is located behind the DTRO unit 1, and the low-temperature heat pump concentration unit 6 is located on the left side of the chiller 7. The outlet of the liquid tank 2 is connected to the cold liquid inlet of the low-temperature heat pump concentration equipment 6 through a connecting mechanism 3. The discharge end of the raw liquid tank 2 is connected to the feed end of the low-temperature heat pump concentration equipment 6 through a connecting mechanism 3. The waste liquid in the raw liquid tank 2 enters the low-temperature heat pump concentration equipment 6 for concentration, and the steam condensate that meets the discharge requirements is discharged. The concentrated liquid containing crystal slurry enters the centrifuge 8. The centrifuge 8 is located on the left side of the low-temperature heat pump concentration equipment 6. The output end of the low-temperature heat pump concentration equipment 6 is connected to the input end of the centrifuge 8 through a connecting mechanism 3. The discharge end of the centrifuge 8 is connected to the feed end of the centrifuge mother liquor tank 10 through a connecting mechanism 3. The centrifuge mother liquor generated by the centrifuge 8 enters the centrifuge mother liquor tank 10. The centrifuge salt is packaged and processed as needed. The discharge end of the centrifuge mother liquor tank 10 is connected to the feed end of the heat pump crystallization equipment 9 through a connecting mechanism 3. The low-temperature heat pump concentration equipment 6, the centrifuge 8, and the heat pump crystallization equipment 9 can all be used independently.

[0026] In this embodiment, when in use, the waste liquid to be treated first enters the DTRO equipment 1, and after filtering out some impurities, it enters the raw liquid tank 2. When the waste liquid enters the raw liquid tank 2, compressed air is introduced into the raw liquid tank 2 by the air compressor 5. At the same time, the waste liquid and compressed air are stirred by starting the rotating component 4 to achieve the aeration effect.

[0027] Subsequently, the waste liquid after aeration enters the low-temperature heat pump concentration equipment 6 for concentration. The steam condensate that meets the emission standards is discharged. The concentrated liquid containing crystal slurry enters the centrifuge 8. The centrifugal mother liquor produced by the centrifuge 8 enters the centrifugal mother liquor tank 10. The centrifugal salt is packaged and processed as needed.

[0028] The centrifugal mother liquor in the centrifugal mother liquor tank 10 enters the heat pump crystallization equipment 9, generating steam and condensate that meet emission standards and is discharged externally. The crystallized salt is processed as needed.

[0029] As a preferred embodiment, the rotating assembly 4 includes a motor 41. The output shaft of the motor 41 passes through the inner wall of the raw liquid tank 2 and is fixedly connected to a rotating rod 42. The rotating rod 42 is coaxially arranged with the raw liquid tank 2. A stirring blade 43 is fixedly connected to the outer wall of the rotating rod 42. When the motor 41 is started, the motor 41 drives the rotating rod 42 to rotate. The rotation of the rotating rod 42 causes the stirring blade 43 to rotate, thereby achieving the effect of stirring the waste liquid and compressed air.

[0030] In a preferred embodiment, the connecting mechanism 3 includes a connecting pipe 31, a retaining ring 32, a moving block 34, and a locking block 35. The retaining ring 32 is fixedly connected to the inner wall of the connecting pipe 31. The inner diameter of the retaining ring 32 is the same as the inner diameter of the pipe it is connected to, and the outer diameter of the retaining ring 32 is the same as the inner diameter of the connecting pipe 31. A pressure chamber 33 is formed on the outer wall of the connecting pipe 31, and the outer side of the pressure chamber 33 extends to the outside of the connecting pipe 31. The moving block 34 is piston-connected to the inner wall of the pressure chamber 33. The side of the moving block 34 away from the axis of the connecting pipe 31 is fixedly connected to the inner circumferential surface of the locking block 35. The inner circumferential surface of the locking block 35 is threadedly connected to the outer circumferential surface of the connecting pipe 31. The inner circumferential surface of the locking block 35 is provided with a threaded protrusion that matches the threaded groove on the outer surface of the connecting pipe 31. An air bladder 3 is fixedly connected to the inner circumferential surface of the connecting pipe 31. 6. The airbag 36 is connected to the air chamber 33. The air chamber 33 is connected to the airbag 36 near one end of the air chamber 33. The other end of the air chamber 33 is provided with a hole that communicates with the outside. The hole is perpendicular to the rotation direction of the locking block 35. In use, first put the two pipes to be connected into the inside of the connecting pipe 31 and make its end contact the end of the pipe-stopping ring 32. Then, the operator rotates the locking block 35. After the locking block 35 rotates, it drives the moving block 34 to rotate synchronously with it, so that it pushes the gas inside the air chamber 33 into the airbag 36, thereby causing the airbag 36 to inflate and fit against the outer wall of the fixed pipe. Since the locking block 35 is threadedly connected to the connecting pipe 31, it is self-locking through the thread. Therefore, it is not easy to be displaced when there is no external force, which can ensure the stability during use.

[0031] As a preferred embodiment, the system also includes an acid tank 11 and an alkali tank 12. The alkali tank 12 is located to the right of the centrifugal mother liquor tank 10 and at a predetermined distance from the centrifugal mother liquor tank 10. The acid tank 11 is located to the right of the alkali tank 12 and at a predetermined distance from the alkali tank 12. The acid tank 11 contains acidic cleaning solution, and the alkali tank 12 contains alkaline cleaning solution, which are used to perform acid and alkali cleaning on the equipment when needed.

[0032] As a preferred method, the inner circumferential surface of the locking block 35 is fitted with the outer circumferential surface of the connecting pipe 31. This fitting method ensures that the gas inside the pressure chamber 33 is not connected to the external gas.

[0033] As a preferred method, the outer wall of the movable block 34 is arc-shaped and fits against the inner wall of the air chamber 33. By setting the shape of the movable block 34, it is ensured that when it rotates along the axis of the connecting pipe 31 together with the locking block 35, it can always maintain a state of fit with the air chamber 33.

[0034] As a preferred method, the air chamber 33 is an arc shape with an angle of less than 360 degrees and greater than 180 degrees. The shape of the air chamber 33 ensures that the internal space of the air chamber 33 can be changed when the moving block 34 is displaced. The air bag 36 is annular. The shape of the air bag 36 ensures that it can cover the outside of the pipe.

[0035] As a preferred method, the number of airbags 36 is set to two, and the two airbags 36 are set on the upper and lower sides of the pipe-stopping ring 32. The airbags 36 are at a preset distance from the pipe-stopping ring 32. By setting the position of the airbags 36, it is ensured that they can fit against the outer wall of the pipe to be connected, so as to achieve the effect of fixing the pipe by friction.

Claims

1. A skid-mounted plant integrating low-temperature concentration and heat pump crystallization, characterized in that: The system includes a DTRO device (1), a stock solution tank (2), an air compressor (5), a low-temperature heat pump concentration device (6), a chiller (7), a centrifuge (8), a heat pump crystallizer (9), and a centrifugal mother liquor tank (10). The stock solution tank (2) is located on the rear side of the DTRO device (1). The discharge end of the DTRO device (1) is connected to the feed end of the stock solution tank (2) via a connecting mechanism (3). A rotating assembly (4) is provided inside the stock solution tank (2). The air compressor (5) is located on the right side of the DTRO device (1). The output end of the air compressor (5) is connected to the feed end of the stock solution tank (2) via a connecting mechanism (3). The chiller (7) is located on the rear side of the DTRO device (1). The low-temperature heat pump concentration device (6) is located on the rear side of the DTRO device (1). The concentrator (6) is located on the left side of the chiller (7). The outlet of the chiller (7) is connected to the cold liquid inlet of the low-temperature heat pump concentrator (6) via a connecting mechanism (3). The outlet of the raw liquid tank (2) is connected to the feed inlet of the low-temperature heat pump concentrator (6) via a connecting mechanism (3). The centrifuge (8) is located on the left side of the low-temperature heat pump concentrator (6). The output of the low-temperature heat pump concentrator (6) is connected to the input of the centrifuge (8) via a connecting mechanism (3). The outlet of the centrifuge (8) is connected to the feed inlet of the centrifugal mother liquor tank (10) via a connecting mechanism (3). The outlet of the centrifugal mother liquor tank (10) is connected to the feed inlet of the heat pump crystallizer (9) via a connecting mechanism (3).

2. A skid-mounted plant for integrated low-temperature concentration and heat pump crystallization according to claim 1, characterized in that: The rotating assembly (4) includes a motor (41), the output shaft of which passes through the inner wall of the original liquid tank (2) and is fixedly connected to a rotating rod (42), and the outer wall of the rotating rod (42) is fixedly connected to a stirring blade (43).

3. The integrated low temperature concentration and heat pump crystallization skid of claim 1, wherein: The connecting mechanism (3) includes a connecting pipe (31), a stop ring (32), a moving block (34), and a locking block (35). The stop ring (32) is fixedly connected to the inner wall of the connecting pipe (31). An air pressure chamber (33) is provided on the outer wall of the connecting pipe (31). The moving block (34) is piston-connected to the inner wall of the air pressure chamber (33). The side of the moving block (34) away from the axis of the connecting pipe (31) is fixedly connected to the inner circumferential surface of the locking block (35). The inner circumferential surface of the locking block (35) is threadedly connected to the outer circumferential surface of the connecting pipe (31). An airbag (36) is fixedly connected to the inner circumferential surface of the connecting pipe (31). The airbag (36) is connected to the air pressure chamber (33).

4. The integrated low temperature concentration and heat pump crystallization skid of claim 1, wherein: It also includes an acid tank (11) and an alkali tank (12). The alkali tank (12) is located on the right side of the centrifugal mother liquor tank (10) and at a predetermined distance from the centrifugal mother liquor tank (10). The acid tank (11) is located on the right side of the alkali tank (12) and at a predetermined distance from the alkali tank (12).

5. The integrated low temperature concentration and heat pump crystallization skid of claim 3, wherein: The inner circumferential surface of the locking block (35) is in contact with the outer circumferential surface of the connecting pipe (31).

6. A skid-mounted device integrating low-temperature concentration and heat pump crystallization according to claim 3, characterized in that: The outer wall of the movable block (34) is arc-shaped, and the outer wall of the movable block (34) is in contact with the inner wall of the air pressure chamber (33).

7. A skid-mounted device integrating low-temperature concentration and heat pump crystallization according to claim 3, characterized in that: The air chamber (33) is an arc shape with an angle of less than 360 degrees and greater than 180 degrees, and the airbag (36) is annular.

8. A skid-mounted device integrating low-temperature concentration and heat pump crystallization according to claim 3, characterized in that: The number of airbags (36) is set to two, and the two airbags (36) are set on the upper and lower sides of the tube ring (32), and the airbags (36) are at a preset distance from the tube ring (32).

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