CN212090980U - Freezing crystallization equipment for reducing salt concentration of chemical solution - Google Patents
Freezing crystallization equipment for reducing salt concentration of chemical solution Download PDFInfo
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- CN212090980U CN212090980U CN202020657041.9U CN202020657041U CN212090980U CN 212090980 U CN212090980 U CN 212090980U CN 202020657041 U CN202020657041 U CN 202020657041U CN 212090980 U CN212090980 U CN 212090980U
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Abstract
The utility model discloses a freezing crystallization device for reducing the salt concentration of chemical solution, which comprises a frame, an electrical control box, a pipeline system, a condensing system, a crystallization tank and a filtering system, wherein a condenser pipe is arranged in the crystallization tank and is connected with the condensing system; the crystallization tank is connected with a container filled with a solution to be treated through a pipeline system; the filtration system is interfaced with the crystallization tank and returned to the vessel via a piping system to direct the treated solution back into the vessel. The utility model designs the freezing crystallization device which mainly comprises a condensation mechanism, a liquid circulation mechanism, a filtering mechanism, a crystallization mechanism and the like according to the principle that the solubility of salt substances is greatly influenced by temperature and the principle that a part of salt crystals can be separated out by a freezing method of the solution, and can conveniently and quickly realize the purpose of reducing the salt concentration of the chemical solution; the device has the advantages of small volume, high efficiency, convenient use, simple operation, no production stop in the adjusting process and the like.
Description
Technical Field
The utility model relates to a chemical industry equipment technical field, concretely relates to an equipment for adjusting chemical industry solution salt concentration.
Background
In the chemical surface treatment industries of electroplating, oxidation and the like, the components in the solution can be continuously and dynamically changed along with the prolonging of the service cycle of the solution. For example, in the gravure sulfate copper plating process, the content of copper sulfate is gradually increased in the use process; in the zincate galvanizing process, the solution absorbs carbon dioxide in the air, so that the content of sodium carbonate in the solution is gradually increased, and the like. When some substances accumulate to a certain upper limit, the original properties of the solution are reduced. In order to maintain the performance of the solution, it is conventional practice to dilute the solution and supplement other components to achieve regeneration of the performance of the solution. In recent years, with the enhancement of environmental protection policy, the treatment of diluted solution becomes a difficult problem, and therefore, there is an urgent need for an apparatus and a method for regenerating the performance of plating solution without diluting the solution.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a realize simple structure, efficient, convenient to use, easy operation, need not stop production and can accomplish the adjustment process be used for chemical industry solution to reduce the refrigeration crystallization equipment of salt concentration.
In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a freezing crystallization equipment for chemical industry solution reduces salt concentration, including frame, electrical control box and pipe-line system, its characterized in that: the crystallization device also comprises a condensing system, a crystallization tank and a filtering system, wherein a condensing pipe is arranged in the crystallization tank, and the condensing pipe is connected with the condensing system to form a temperature control structure for liquid in the crystallization tank; the crystallization tank is connected with a container of the solution to be treated through a pipeline system so as to realize the introduction of the solution to be treated into the crystallization tank; the filtering system is butted with the crystallization tank to form a filtering structure for crystals, and the filtering structure is connected back to the container through a pipeline system so as to lead the treated solution back to the container.
Furthermore, the condensing pipe is a spiral condensing coil pipe, and the condensing coil pipe is connected with a condensing system to form a refrigerant circulating structure; the crystallization tank is also provided with an air stirring pipe which is connected with a compressed air supply mechanism; the crystallization tank is connected with a pipeline system through a liquid inlet, a liquid outlet is arranged at the bottom of the tank body, and the filtering system is in butt joint with the liquid outlet.
Furthermore, the pipeline system comprises a liquid feeding pipeline and a liquid return pipeline, the liquid feeding pipeline is connected with the crystallization tank, the liquid return pipeline is connected back to the container from the filtering system, the inlet end of the liquid feeding pipeline and the outlet end of the liquid return pipeline are converged together to form a solution inlet and outlet, and the solution inlet and outlet are in butt joint with the container; and a pump is arranged between the liquid feeding pipeline and the liquid return pipeline, the pump is arranged on the frame, the solution to be treated in the container is pumped into the crystallization tank through the liquid feeding pipeline by the pump, and the treated solution is pumped into the container through the liquid return pipeline by the pump.
Further, a liquid storage tank is arranged below the filtering system, and an inlet of the liquid return pipeline is connected with the liquid storage tank; the liquid storage tank and the filter screen of the filter system are both made of titanium materials; and a liquid discharging ball valve is arranged at a liquid discharging port at the bottom of the crystallizing tank and is aligned with the filter sieve.
Furthermore, a first ball valve and a fourth ball valve are arranged in the upper liquid pipeline, and a second ball valve and a third ball valve are arranged in the return liquid pipeline; the first ball valve is positioned between the pump and the crystallization tank to control the introduction of the solution to be treated into the crystallization tank, and the fourth ball valve is positioned between the pump and the solution inlet and outlet to control the introduction of the treated solution back into the container; the second ball valve is positioned between the pump and the liquid storage tank to control the opening of the liquid storage tank, and the third ball valve is positioned between the pump and the solution inlet and outlet to control the introduction of the solution to be treated from the container. And the control of liquid feeding and returning is realized by opening or closing the corresponding valves.
Furthermore, the condensing system comprises a refrigerant compressor, the compressor is arranged on the rack and connected with the electric control box, and the condensing coil is connected with the compressor; a radiator is arranged beside the compressor, a radiating fan is arranged beside the radiator, and the radiator form a radiating structure for the compressor together.
Further, a temperature probe is arranged at the bottom of the crystallization tank, so that the temperature of the liquid in the crystallization tank can be monitored in real time and fed back to the electric control box.
Preferably, the tank body, the condensing coil pipe, the air stirring pipe and the temperature probe of the crystallization tank are all made of titanium materials.
Preferably, the pump, the frame and the shell support of the filter sieve are all made of 304 stainless steel, the upper liquid pipeline, the return liquid pipeline, the first ball valve, the second ball valve, the third ball valve, the fourth ball valve and the lower liquid ball valve are all made of PVC, and the inner sealing ring is made of polytetrafluoroethylene.
Furthermore, the electric control box is arranged on the frame, and a plurality of casters which are convenient to move are arranged at the bottom of the frame, so that the whole device can be conveniently moved beside a container of the solution to be treated.
The utility model designs the freezing crystallization device which mainly comprises a condensation mechanism, a liquid circulation mechanism, a filtering mechanism, a crystallization mechanism and the like according to the principle that the solubility of salt substances is greatly influenced by temperature and the principle that a part of salt crystals can be separated out by a freezing method of the solution, and can conveniently and quickly realize the purpose of reducing the salt concentration of the chemical solution; the device has the advantages of small volume, high efficiency, convenient use, simple operation, no production stop in the adjusting process and the like.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a crystallization tank;
FIG. 3 is a schematic view of another angle structure of the crystallization tank.
In the figure, 1 is a bracket, 2 is a pump, 3 is a compressor, 4 is a radiator, 5 is a radiator fan, 6 is an electrical control box, 7 is a crystallization tank, 71 is a tank body, 72 is a condensing coil, 73 is a liquid inlet, 74 is a liquid outlet, 75 is an air stirring pipe, 76 is a temperature probe, 8 is a liquid outlet ball valve, 9 is a filter screen, 10 is a liquid storage tank, 11 is a caster, 12 is a liquid return pipeline, 13 is a liquid feeding pipeline, 14 is a first ball valve, 15 is a second ball valve, 16 is a third ball valve, 17 is a fourth ball valve, and 18 is a solution inlet and outlet.
Detailed Description
In this embodiment, referring to fig. 1, fig. 2, and fig. 3, the freezing and crystallizing device for reducing salt concentration in a chemical solution includes a rack 1, an electrical control box 6, a pipeline system, a condensing system, a crystallizing tank 7, and a filtering system, wherein a condensing pipe is disposed in the crystallizing tank 7, and the condensing pipe is connected with the condensing system to form a temperature control structure for liquid in the crystallizing tank 7; the crystallization tank 7 is connected with a container of the solution to be treated through a pipeline system so as to realize the introduction of the solution to be treated into the crystallization tank 7; the filtration system is interfaced with the crystallization tank 7 to form a filtration structure for crystals and is connected back to the vessel through a piping system to conduct the treated solution back to the vessel.
The condensing pipe is a spiral condensing coil 72, and the condensing coil 72 is connected with a condensing system to form a circulating structure of a refrigerant; the crystallization tank 7 is also provided with an air stirring pipe 75, and the air stirring pipe 75 is connected with a compressed air supply mechanism; the crystallization tank 7 is connected with a pipeline system through a liquid inlet 73, a liquid outlet 74 is arranged at the bottom of the tank body 71, and the filtering system is in butt joint with the liquid outlet 74.
The pipeline system comprises an upper liquid pipeline 13 and a liquid return pipeline 12, the upper liquid pipeline 13 is connected with the crystallization tank 7, the liquid return pipeline 12 is connected back to the container from the filtering system, the inlet end of the upper liquid pipeline 13 and the outlet end of the liquid return pipeline 12 are converged together to form a solution inlet and outlet 18, and the solution inlet and outlet 18 is in butt joint with the container; a pump 2 is arranged between the upper liquid pipeline 13 and the liquid return pipeline 12, the pump 2 is arranged on the frame 1, the solution to be treated in the container is pumped into the crystallization tank 7 through the upper liquid pipeline 13 by the pump 1, and the treated solution is pumped into the container through the liquid return pipeline 12 by the pump 2.
A liquid storage tank 10 is arranged below the filtering system, and the inlet of a liquid return pipeline 13 is connected with the liquid storage tank 10; the liquid storage tank 10 and the filter sieve 9 of the filter system are both made of titanium materials; a lower liquid ball valve 8 is arranged at a lower liquid opening 74 at the bottom of the crystallization tank 7, and the lower liquid ball valve 8 is aligned with the filter sieve 9.
A first ball valve 14 and a fourth ball valve 17 are arranged in the upper liquid pipeline 13, and a second ball valve 15 and a third ball valve 16 are arranged in the liquid return pipeline 12; wherein, the first ball valve 14 is positioned between the pump 2 and the crystallization tank 7 to control the introduction of the solution to be treated into the crystallization tank 7, and the fourth ball valve 17 is positioned between the pump 2 and the solution inlet/outlet 18 to control the introduction of the treated solution back into the container; a second ball valve 15 is located between the pump 2 and the tank 10 to control the opening of the tank 10 and a third ball valve 16 is located between the pump 2 and a solution inlet or outlet 18 to control the introduction of the solution to be treated from the container. And the control of liquid feeding and returning is realized by opening or closing the corresponding valves.
The condensing system comprises a refrigerant compressor 3, the compressor 3 is arranged on the frame 1 and is connected with an electric control box 6, and a condensing coil 72 is connected with the compressor 3; a radiator 4 is arranged beside the compressor 3, a radiating fan 5 is arranged beside the radiator 4, and the radiator and the radiating fan form a radiating structure for the compressor 3 together, so that the normal work of the compressor 3 is guaranteed.
A temperature probe 76 is also provided at the bottom of the crystallization tank 7 to monitor the temperature of the liquid inside the crystallization tank 7 in real time and feed it back to the electric control box 6 for the next operation.
The tank body 71, the condensing coil 72, the air stirring pipe 75 and the temperature probe 76 of the crystallization tank 7 are all made of titanium materials.
The shell support of pump 2, frame 1 and filter sieve 9 all adopts 304 stainless steel to make, and goes up liquid pipeline 13, returns liquid pipeline 12, first ball valve 14, second ball valve 15, third ball valve 16, fourth ball valve 17 and lower liquid ball valve 8 and all adopts for the PVC material, and inside sealing washer adopts the polytetrafluoroethylene material.
The electric control box 6 is arranged on the frame 1, and a plurality of casters 11 which are convenient to move are arranged at the bottom of the frame 1, so that the whole device can be conveniently moved to the side of a container of the solution to be treated.
The working process is as follows: 1. the equipment is connected with a three-phase four-wire 380V power supply, a solution (namely a solution to be treated) with high salt content is connected with a solution inlet and outlet 18 through a pipeline, a first ball valve 14 and a third ball valve 16 are opened, a second ball valve 15 and a fourth ball valve 17 are closed, and an upper liquid pipeline 13 is communicated with a liquid inlet 73 in a crystallization tank 7; the pump 2 is turned on to inject the solution to be treated into the crystallization tank 7. When the liquid level reaches the upper limit position of the crystallization tank 7, the switch of the pump 2 is closed, and the liquid feeding is stopped;
2. turning on a control switch of the compressor 3, starting the compressor 3 to work, increasing the temperature of the compressed refrigerant, reducing the temperature through the radiator 4 and the cooling fan 5, and enabling the refrigerant to enter the condensing coil 72 to realize the refrigeration process, so that the temperature of the solution in the crystallization tank 7 is gradually reduced;
3. in the whole refrigeration process, compressed air enters the solution through the air stirring pipe 75, so that the solution in the crystallization tank 7 is stirred vigorously. With the gradual reduction of the temperature of the solution, crystals begin to appear in the solution and are suspended in the solution along with the stirred solution, and simultaneously, the salt concentration of the solution is reduced;
4. when the temperature of the solution is reduced to the set temperature, a large amount of crystals can be formed in the solution, and the salt concentration of the solution is reduced to the set value, at this time, the compressor 3 stops working;
5. opening a liquid discharge ball valve 8 to gradually put the treated solution into a filter sieve 9, filtering the crystal into the filter sieve 9, and enabling the solution to flow into a liquid storage tank 10;
6. when the solution in the crystallization tank 7 is completely discharged, opening the second ball valve 15 and the fourth ball valve 17, closing the first ball valve 14 and the third ball valve 16, connecting the liquid return pipeline 12 with a liquid outlet at the bottom of the liquid storage tank 10, opening a switch of the pump 2, and injecting the solution in the liquid storage tank 10 into an original container;
7. the solution to be treated can be frozen and crystallized for a plurality of times, thereby realizing the reduction of the main salt content in the reaction tank.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, i.e. the present invention is intended to cover all equivalent variations and modifications within the scope of the present invention.
Claims (10)
1. The utility model provides a freezing crystallization equipment for chemical industry solution reduces salt concentration, including frame, electrical control box and pipe-line system, its characterized in that: the crystallization device also comprises a condensing system, a crystallization tank and a filtering system, wherein a condensing pipe is arranged in the crystallization tank, and the condensing pipe is connected with the condensing system to form a temperature control structure for liquid in the crystallization tank; the crystallization tank is connected with a container of the solution to be treated through a pipeline system so as to realize the introduction of the solution to be treated into the crystallization tank; the filtering system is butted with the crystallization tank to form a filtering structure for crystals, and the filtering structure is connected back to the container through a pipeline system so as to lead the treated solution back to the container.
2. The apparatus of claim 1, wherein the apparatus comprises: the condensing pipe is a spiral condensing coil pipe, and the condensing coil pipe is connected with a condensing system to form a circulating structure of a refrigerant; the crystallization tank is also provided with an air stirring pipe which is connected with a compressed air supply mechanism; the crystallization tank is connected with a pipeline system through a liquid inlet, a liquid outlet is arranged at the bottom of the tank body, and the filtering system is in butt joint with the liquid outlet.
3. The apparatus of claim 1, wherein the apparatus comprises: the pipeline system comprises a liquid feeding pipeline and a liquid return pipeline, the liquid feeding pipeline is connected with the crystallization tank, the liquid return pipeline is connected back to the container from the filtering system, the inlet end of the liquid feeding pipeline and the outlet end of the liquid return pipeline are converged together to form a solution inlet and outlet, and the solution inlet and outlet are in butt joint with the container; and a pump is arranged between the liquid feeding pipeline and the liquid return pipeline, the pump is arranged on the frame, the solution to be treated in the container is pumped into the crystallization tank through the liquid feeding pipeline by the pump, and the treated solution is pumped into the container through the liquid return pipeline by the pump.
4. The apparatus of claim 3, wherein the apparatus comprises: a liquid storage tank is arranged below the filtering system, and an inlet of the liquid return pipeline is connected with the liquid storage tank; the liquid storage tank and the filter screen of the filter system are both made of titanium materials; and a liquid discharging ball valve is arranged at a liquid discharging port at the bottom of the crystallizing tank and is aligned with the filter sieve.
5. The apparatus of claim 4, wherein the apparatus comprises: a first ball valve and a fourth ball valve are arranged in the liquid feeding pipeline, and a second ball valve and a third ball valve are arranged in the liquid return pipeline; the first ball valve is positioned between the pump and the crystallization tank to control the introduction of the solution to be treated into the crystallization tank, and the fourth ball valve is positioned between the pump and the solution inlet and outlet to control the introduction of the treated solution back into the container; the second ball valve is positioned between the pump and the liquid storage tank to control the opening of the liquid storage tank, and the third ball valve is positioned between the pump and the solution inlet and outlet to control the introduction of the solution to be treated from the container.
6. The apparatus of claim 2, wherein the apparatus comprises: the condensing system comprises a refrigerant compressor, the compressor is arranged on the rack and connected with the electric control box, and the condensing coil is connected with the compressor; a radiator is arranged beside the compressor, a radiating fan is arranged beside the radiator, and the radiator form a radiating structure for the compressor together.
7. The apparatus of claim 2, wherein the apparatus comprises: and a temperature probe is also arranged at the bottom of the crystallization tank to monitor the temperature of the liquid in the crystallization tank.
8. The apparatus of claim 2, wherein the apparatus comprises: the tank body, the condensing coil pipe, the air stirring pipe and the temperature probe of the crystallization tank are all made of titanium materials.
9. The apparatus of claim 5, wherein the apparatus comprises: the shell support of pump, frame and filter sieve all adopts 304 stainless steel to make, and goes up liquid pipeline, return fluid pipeline, first ball valve, second ball valve, third ball valve, fourth ball valve and lower liquid ball valve and all adopts the PVC material, and inside sealing washer adopts the polytetrafluoroethylene material.
10. The apparatus of claim 1, wherein the apparatus comprises: the electric control box is arranged on the frame, and a plurality of caster wheels which are convenient to move are arranged at the bottom of the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020657041.9U CN212090980U (en) | 2020-04-26 | 2020-04-26 | Freezing crystallization equipment for reducing salt concentration of chemical solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020657041.9U CN212090980U (en) | 2020-04-26 | 2020-04-26 | Freezing crystallization equipment for reducing salt concentration of chemical solution |
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| Publication Number | Publication Date |
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| CN212090980U true CN212090980U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020657041.9U Active CN212090980U (en) | 2020-04-26 | 2020-04-26 | Freezing crystallization equipment for reducing salt concentration of chemical solution |
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| CN (1) | CN212090980U (en) |
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2020
- 2020-04-26 CN CN202020657041.9U patent/CN212090980U/en active Active
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