CN115448421A - Evaporation pot with built-in electromagnetic device and high-salt-content wastewater evaporation system and method - Google Patents
Evaporation pot with built-in electromagnetic device and high-salt-content wastewater evaporation system and method Download PDFInfo
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- CN115448421A CN115448421A CN202210939250.6A CN202210939250A CN115448421A CN 115448421 A CN115448421 A CN 115448421A CN 202210939250 A CN202210939250 A CN 202210939250A CN 115448421 A CN115448421 A CN 115448421A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0017—Use of electrical or wave energy
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/042—Prevention of deposits
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
Abstract
The invention relates to an evaporation tank with a built-in electromagnetic device, a high-salt-content wastewater evaporation system and a high-salt-content wastewater evaporation method. High salt waste water evaporation system that contains including mixed material jar and evaporating pot, the discharging pipe that mixed material jar passes through the feed pump and is connected with the inlet pipe of evaporating pot body. The electromagnetic device is arranged in the evaporating pot, so that the utilization efficiency of an electromagnetic field is improved, the electromagnetic scale inhibition effect is improved, and the energy consumption in the scale inhibition process is reduced.
Description
Technical Field
The invention relates to the technical field of wastewater evaporation treatment, in particular to an evaporation tank with a built-in electromagnetic device, a high-salt-content wastewater evaporation system and a high-salt-content wastewater evaporation method.
Background
The high-salinity wastewater is derived from domestic sewage, industrial wastewater and a concentrated solution obtained after wastewater treatment, such as industrial production by directly utilizing seawater, food processing, pharmacy, chemical industry, petroleum and natural gas collection and processing and the like. The high-salinity wastewater contains a large amount of inorganic salt such as Na besides organic pollutants + 、Cl - 、SO 4 2- 、Ca 2+ 、Mg 2+ . If the high-salt-content wastewater is directly discharged without being treated, the high-salt-content wastewater can cause great harm to aquatic organisms, domestic drinking water and industrial and agricultural production water.
The evaporation process is an effective way for treating the high-salt-content wastewater, can quickly improve the water quality and recover NaCl and Na 2 SO 4 And as a byproduct, the wastewater resource recycling is realized. However, the evaporation and the recycling of the wastewater with high salt content are also realizedThere is a relatively outstanding problem. Ca is contained in the high-salt-content wastewater 2+ 、Mg 2+ Plasma is easy to form scale in a heat exchanger and an evaporating pot in the evaporation process, reduces the heat exchange efficiency and influences the NaCl and Na products 2 SO 4 The quality of the evaporator needs to be frequently stopped to clean the scale, and the operating efficiency of the evaporator is reduced.
In recent years, with the improvement of technological level and the perfection of basic theory, electromagnetic treatment technology is developed vigorously, and application research is widened gradually. The electromagnetic field water treatment is abbreviated as electromagnetic treatment, and can integrate multiple functions of scale prevention, scale removal, corrosion inhibition, sterilization and the like in the water treatment process, wherein the electromagnetic scale inhibition technology is widely concerned due to the advantages of convenient use, no pollution, low cost and the like. The electromagnetic scale inhibition technology generates an electromagnetic field, so that a water body generates resonance, hydrogen bonds in polar large water molecular groups are broken under the action of the electromagnetic field, the hydrogen bonds in the large water molecular groups in a chain or a group shape in circulating water are broken, and the large water molecular groups are changed into small water molecules, and meanwhile, the small water molecules have stronger dissolving power relative to the large water molecular groups, so that the scale inhibition effect is achieved. In addition, because the small water molecules have strong permeability, the small water molecules can penetrate between the scale and the container wall in dynamic dissolution balance, so that the scale is changed into fine and soft aragonite crystals from hard and compact flaky calcite crystals and is gradually dissolved into a water body, and the scale removal effect is achieved.
Most of the existing electromagnetic scale inhibition devices adopt an electromagnetic field generated by winding a section of electromagnetic coil on a pipeline outside equipment to inhibit scale. However, the existing electromagnetic coil scale inhibition method only utilizes the electromagnetic field generated in the pipeline, but does not utilize the electromagnetic field generated outside the pipeline. If the electromagnetic field generated outside the pipeline can be utilized, the utilization efficiency of the electromagnetic field can be improved, the electromagnetic scale inhibition effect can be improved to a certain extent, and the energy consumption in the scale inhibition process can be properly reduced.
Disclosure of Invention
The invention aims to solve the problems of high electromagnetic scale inhibition energy consumption and low electromagnetic utilization rate in the existing wastewater evaporation system, and provides an evaporation tank with a built-in electromagnetic device, a high-salt-content wastewater evaporation system and a method.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a built-in electromagnetic means's evaporating pot, includes the evaporating pot body, and the top of evaporating pot body is equipped with steam outlet, and the bottom of evaporating pot body is equipped with the feed liquid export, the evaporating pot body still has the inlet pipe, and inside the inlet pipe stretched into the evaporating pot body by the lower part of evaporating pot body, and the outside winding of inlet pipe that is located the inside evaporating pot body has solenoid, and solenoid is connected with the power that sets up at the outside of evaporating pot body.
The evaporation tank with the built-in electromagnetic device is further optimized as follows: the inlet pipe that is located inside the evaporating pot body comprises horizontal part and vertical portion, and the axis setting along the evaporating pot body is followed to vertical portion, and solenoid twines on vertical portion.
The evaporation tank with the built-in electromagnetic device is further optimized as follows: the electromagnetic coil is a high-temperature resistant coil wound by one or more layers.
The evaporation tank with the built-in electromagnetic device is further optimized as follows: the electromagnetic coil is a copper core coil wrapped by a Teflon insulating skin.
As a further optimization of the evaporation tank with the built-in electromagnetic device of the invention: the power supply is a direct current power supply or an alternating current power supply.
The utility model provides a high salt waste water evaporation system that contains, includes mixing tank and above-mentioned evaporating pot, mixing tank's discharging pipe passes through the feed pipe that charge pump and evaporating pot body are connected.
As further optimization of the high-salt-content wastewater evaporation system provided by the invention: and a heat exchanger is also arranged on the discharge pipe of the mixing material tank.
As a further optimization of the high-salt-content wastewater evaporation system of the invention: the mixing tank is provided with a raw material inlet and a backflow feed inlet, the backflow feed inlet is communicated with the bottom of the evaporating pot body through a backflow pipe, and the backflow pipe is provided with an electromagnetic valve.
As further optimization of the high-salt-content wastewater evaporation system provided by the invention: and a stirrer is also arranged in the mixture tank.
A method for evaporating and treating high-salt-content wastewater comprises the following steps: evaporation raw materials is in the material inlet flows into the mixing material jar, and the feed liquid is carried by the charge pump and after the heat exchanger heating, flows in the inlet pipe and flows in this internally from the last port of inlet pipe to the evaporating pot, and the switch on, the feed liquid in the inlet pipe all are in the electromagnetic field with the feed liquid in the evaporating pot body, and finally, steam is discharged from steam outlet, and the feed liquid through evaporative concentration is discharged from the feed liquid export.
Another method for evaporating and treating high-salt-content wastewater comprises the following steps: evaporation raw materials flows into the mixing material jar through the raw materials import in, the feed liquid is carried and is heated the back through the heat exchanger by the charge-in pump, it is internal to get into the inlet pipe and flow into the evaporating pot from the upper port of inlet pipe, switch on, the feed liquid in the inlet pipe all is in the electromagnetic field with the feed liquid in the evaporating pot body, open the feed liquid that the solenoid valve made in the evaporating pot body and get into the mixing material jar, feed liquid and raw materials intensive mixing, make feed liquid circulation in the mixing material jar heated and circulate through the electromagnetic field, finally, steam is discharged from steam outlet, discharge from the feed liquid export through the concentrated feed liquid of evaporation.
The invention has the following beneficial effects:
1. the electromagnetic device is creatively arranged in the evaporating pot, and an electromagnetic field induced by the electromagnetic device in the evaporating pot can act on the liquid material flowing through the inside of the magnetism gathering feed pipe and the liquid material outside the magnetism gathering feed pipe, namely in the evaporating pot, so that the hydrogen bonds in polar large water molecular groups are further promoted to break, the number of small water molecules is increased, the scale inhibition effect is improved, the utilization efficiency of the electromagnetic field is effectively improved, the electromagnetic scale inhibition effect is improved, and the energy consumption in the scale inhibition process is reduced.
2. The high-salt-content wastewater evaporation system with the built-in electromagnetic device can effectively slow down the scaling phenomenon in the evaporation system, thereby reducing the cleaning frequency of an evaporation tank and a heat exchanger and improving the heat exchange efficiency of the heat exchanger.
Drawings
FIG. 1 is a schematic view showing the internal structure of an evaporation can according to the present invention;
FIG. 2 is a schematic structural diagram of an evaporation system for high-salinity wastewater according to the present invention;
reference numerals:
1. an electromagnetic coil;
2. a power source;
3. a stirrer;
4. mixing the material tank;
5. a feed pump;
6. a heat exchanger;
7. an evaporation tank body;
701. a steam outlet;
702. a feed liquid outlet;
8. a feeding pipe;
9. a return pipe;
10. an electromagnetic valve;
11. and (4) raw material inlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
< Evaporation pot >
As shown in fig. 1, an evaporation can with a built-in electromagnetic device includes an evaporation can body 7, a steam outlet 701 is provided at the top of the evaporation can body 7, and a feed liquid outlet 702 is provided at the bottom of the evaporation can body 7.
Evaporating pot body 7 still has inlet pipe 8, and inside inlet pipe 8 stretched into evaporating pot body 7 by the lower part of evaporating pot body 7, and be located the inside inlet pipe 8 of evaporating pot body 7 outer winding have solenoid 1, specifically, be located the inside inlet pipe 8 of evaporating pot body 7 comprises horizontal part and vertical portion, and the axis setting of evaporating pot body 7 is followed to vertical portion, and solenoid 1 winding is in vertical portion, and solenoid 1 is high temperature resistant coil, like the copper core coil of the insulating skin parcel of teflon, can twine one deck or multilayer.
The electromagnetic coil 1 is connected with a power supply 2 arranged outside the evaporation tank body 7, and the power supply 2 is a direct current power supply or an alternating current power supply.
When the feed liquid passes through the built-in feed pipe 8 wound with the electromagnetic coil 1 in the evaporation tank body 7, under the action of an electromagnetic field in the pipeline, hydrogen bonds in polar large water molecular groups are broken, so that the polar large water molecular groups are changed into small water molecules, and the small water molecules have stronger dissolving power relative to the large water molecular groups, thereby playing a scale inhibition effect. Compared with the traditional electromagnetic scale inhibition technology, the electromagnetic field induced by the electromagnetic device in the evaporation tank body 7 not only can act on the feed liquid flowing through the feed pipe 8, but also can act on the feed liquid outside the feed pipe 8, namely in the evaporation tank body 7, so that the hydrogen bonds in polar large water molecular groups are further promoted to break, the number of small water molecules is increased, and the effect of promoting the scale inhibition effect is achieved. Steam is discharged from a steam outlet 701 of the evaporation tank, and the feed liquid subjected to evaporation concentration is discharged from a feed liquid outlet 702 of the evaporation tank.
< high salt-containing wastewater evaporation system >
As shown in fig. 2: the utility model provides a high salt waste water vaporization system, includes that the discharging pipe of blending material jar 4 passes through charge pump 5 and is connected with the inlet pipe 8 of evaporating pot body 7 including blending material jar 4 and the above-mentioned built-in electromagnetic means's evaporating pot.
It should be noted that the mixing tank 4 is provided with a raw material inlet 11, the mixing tank 4 is further provided with a backflow feed inlet, the backflow feed inlet is communicated with the bottom of the evaporation tank body 7 through a backflow pipe 9, the backflow pipe 9 is provided with an electromagnetic valve 10, a stirrer 3 is further arranged in the mixing tank 4, and raw material liquid and backflow liquid can be fully mixed through the stirrer 3.
Still be provided with heat exchanger 6 on the discharging pipe of mixing bucket 4, can promote the feed liquid temperature who gets into evaporating pot body 7 through heat exchanger 6.
< method for treating high salt-containing wastewater by evaporation >
According to whether the evaporating pot body 7 flows back into the mixing material tank 4 or not, the high-salt-content wastewater evaporation treatment method is divided into two methods:
a method for evaporating and treating high-salt-content wastewater comprises the following steps: the evaporation raw material flows into the mixing material tank 4 from the raw material inlet 11, then the feed liquid is conveyed by the evaporation tank feeding pump 5, and the feed liquid flows through the feeding pipe 8 after being heated by the heat exchanger 6 and then flows into the evaporation tank body 7 from the evaporation tank feed liquid inlet. The power supply 2 is switched on, the feed liquid in the feed pipe 8 and the feed liquid in the evaporation tank body 7 are both in an electromagnetic field, and the feed liquid is subjected to electromagnetic treatment, so that the scale inhibition effect is achieved. Steam is discharged from a steam outlet 701 of the evaporation tank, and the feed liquid subjected to evaporation concentration is discharged from a feed liquid outlet 702 of the evaporation tank.
A method for evaporating and treating high-salt-content wastewater comprises the following steps: the evaporation raw material flows into the mixing material tank 4 from the raw material inlet 11, then the feed liquid is conveyed by the evaporation tank feeding pump 5, and the feed liquid flows through the feeding pipe 8 after being heated by the heat exchanger 6 and then flows into the evaporation tank body 7 from the evaporation tank feed liquid inlet. The power supply 2 is switched on, the feed liquid in the feed pipe 8 and the feed liquid in the evaporation tank body 7 are both in an electromagnetic field, and the feed liquid is subjected to electromagnetic treatment, so that the scale inhibition effect is achieved. The electromagnetic valve 10 is opened to enable the feed liquid in the evaporation tank body 7 to enter the mixing material tank 4, and under the stirring action of the stirrer 3, the feed liquid and the raw materials are fully mixed, so that the feed liquid in the evaporation tank body 7 is circularly heated and circularly passes through an electromagnetic field. Steam is discharged from a steam outlet 701 of the evaporation tank, and the feed liquid subjected to evaporation concentration is discharged from a feed liquid outlet 702 of the evaporation tank.
The following two experimental examples are used to illustrate the advantages of the evaporation tank with the built-in electromagnetic device in the aspects of scale inhibition effect and energy consumption compared with the traditional scale inhibition form.
< Experimental example 1>
The evaporation raw material is simulated salt-containing water prepared in a laboratory, a solution with the calcium ion concentration of 10mmol/L is prepared by using a certain amount of calcium chloride and sodium bicarbonate according to the molar ratio of 1.
The evaporation raw material flows into the mixing material tank 4 from the raw material inlet 11, then the feed liquid is conveyed by the evaporation tank feed pump 5, and the feed liquid is heated by the heat exchanger 6, flows through the feed pipe 8 and then flows into the evaporation tank body 7 from the evaporation tank feed liquid inlet. The power supply 2 is kept off, no electromagnetic field is applied, and scale inhibition is not performed. Steam is discharged from a steam outlet 701 of the evaporation tank, and the feed liquid subjected to evaporation concentration is discharged from a feed liquid outlet 702 of the evaporation tank. And (3) taking out the test piece in the evaporation tank after the device operates for 10h, drying the test piece in an oven, weighing the mass of the test piece, and changing the mass of the test piece into 217mg, namely the scaling amount into 217mg.
The traditional scale inhibition mode is as follows: an electromagnetic coil is wound on a pipeline behind the heat exchanger and in front of the evaporating pot, and a power supply is used for electrifying to provide an electromagnetic field, namely the traditional electromagnetic scale inhibition mode.
The evaporation raw material flows into the mixing material tank 4 from the raw material inlet 11, then the feed liquid is conveyed by the feed pump 5 of the evaporation tank, the feed liquid is heated by the heat exchanger 6, flows through the electromagnetic scale inhibition area on the pipeline, flows through the feed pipe 8, and then flows into the evaporation tank body 7 from the feed liquid inlet of the evaporation tank, and the power supply 2 is kept closed. Steam is discharged from a steam outlet 701 of the evaporation tank, and the feed liquid subjected to evaporation concentration is discharged from a feed liquid outlet 702 of the evaporation tank. And (3) taking out the test piece in the evaporation tank after the device operates for 10h, drying the test piece in an oven, weighing the mass of the test piece, and changing the mass of the test piece into 168mg, namely, the scaling amount is 168mg and the scale inhibition rate is 22.6%.
The scale inhibition mode of the invention is as follows: the evaporation raw material flows into the mixing material tank 4 from the raw material inlet 11, then the feed liquid is conveyed by the evaporation tank feed pump 5, and the feed liquid is heated by the heat exchanger 6, flows through the feed pipe 8 and then flows into the evaporation tank body 7 from the evaporation tank feed liquid inlet. The power supply 2 is switched on, the feed liquid in the feeding pipe 8 and the feed liquid in the evaporation tank body 7 are both in an electromagnetic field, and the feed liquid is subjected to electromagnetic treatment to play a scale inhibition effect. Steam is discharged from a steam outlet 701 of the evaporation tank, and the feed liquid subjected to evaporation concentration is discharged from a feed liquid outlet 702 of the evaporation tank. And (3) taking out the test piece in the evaporating pot after the device operates for 10 hours, drying the test piece in the drying oven, weighing the mass of the test piece, and changing the mass of the test piece into 53mg, namely, the scaling amount is 53mg and the scale inhibition rate is 75.6%.
< Experimental example 2>
The evaporation raw material is simulated salt-containing water prepared in a laboratory, a solution with the calcium ion concentration of 10mmol/L is prepared by using a certain amount of calcium chloride and sodium bicarbonate according to the molar ratio of 1.
The evaporation raw material flows into the mixing material tank 4 from the raw material inlet 11, then the feed liquid is conveyed by the evaporation tank feeding pump 5, and the feed liquid flows through the feeding pipe 8 after being heated by the heat exchanger 6 and then flows into the evaporation tank body 7 from the evaporation tank feed liquid inlet. The power supply 2 is kept off, no electromagnetic field is applied, and scale inhibition is not performed. The electromagnetic valve 10 is opened to enable the feed liquid in the evaporating pot body 7 to enter the mixing material tank 4, and under the stirring action of the stirrer 3, the feed liquid and the raw materials are fully mixed, so that the feed liquid in the evaporating pot body 7 is circularly heated and circularly passes through the evaporating pot. Steam is discharged from a steam outlet 701 of the evaporation tank, and the feed liquid subjected to evaporation concentration is discharged from a feed liquid outlet 702 of the evaporation tank. And (3) taking out the test piece in the evaporating pot after the device runs for 10 hours, drying the test piece in the drying oven, weighing the mass of the test piece, and changing the mass of the test piece into 203mg, namely the scaling amount is 203mg.
The traditional scale inhibition mode is as follows: the electromagnetic coil is wound on the pipeline behind the heat exchanger and in front of the evaporating pot, and the power supply is used for electrifying to provide an electromagnetic field, namely the traditional electromagnetic scale inhibition mode.
The evaporation raw material flows into the mixing material tank 4 from the raw material inlet 11, then the feed liquid is conveyed by the feed pump 5 of the evaporation tank, the feed liquid is heated by the heat exchanger 6, flows through the electromagnetic scale inhibition area on the pipeline, flows through the feed pipe 8, and then flows into the evaporation tank body 7 from the feed liquid inlet of the evaporation tank, and the power supply 2 is kept closed. The electromagnetic valve 10 is opened to enable the feed liquid in the evaporating pot body 7 to enter the mixing material tank 4, and under the stirring action of the stirrer 3, the feed liquid and the raw materials are fully mixed, so that the feed liquid in the evaporating pot body 7 is circularly heated and circularly passes through the evaporating pot. Steam is discharged from a steam outlet 701 of the evaporation tank, and the feed liquid subjected to evaporation concentration is discharged from a feed liquid outlet 702 of the evaporation tank. And (3) taking out the test piece in the evaporating pot after the device operates for 10 hours, drying the test piece in the drying oven, weighing the mass of the test piece, and changing the mass of the test piece into 156mg, namely, the scaling amount is 156mg and the scale inhibition rate is 23.2%.
The scale inhibition mode of the invention is as follows: the evaporation raw material is simulated salt-containing water prepared in a laboratory, a solution with the calcium ion concentration of 10mmol/L is prepared by using a certain amount of calcium chloride and sodium bicarbonate according to the molar ratio of 1.
The evaporation raw material flows into the mixing material tank 4 from the raw material inlet 11, then the feed liquid is conveyed by the evaporation tank feed pump 5, and the feed liquid is heated by the heat exchanger 6, flows through the feed pipe 8 and then flows into the evaporation tank body 7 from the evaporation tank feed liquid inlet. The power supply 2 is switched on, the feed liquid in the feed pipe 8 and the feed liquid in the evaporation tank body 7 are both in an electromagnetic field, and the feed liquid is subjected to electromagnetic treatment, so that the scale inhibition effect is achieved. The electromagnetic valve 10 is opened to enable the feed liquid in the evaporation tank body 7 to enter the mixing material tank 4, and under the stirring action of the stirrer 3, the feed liquid and the raw materials are fully mixed, so that the feed liquid in the evaporation tank body 7 is circularly heated and circularly passes through an electromagnetic field in the evaporation tank. Steam is discharged from a steam outlet 701 of the evaporation tank, and the feed liquid subjected to evaporation concentration is discharged from a feed liquid outlet 702 of the evaporation tank. And (3) taking out the test piece in the evaporation tank after the device operates for 10h, drying the test piece in an oven, weighing the mass of the test piece, wherein the mass of the test piece is changed into 46mg, namely the scaling amount is 46mg, and the scale inhibition rate is 77.3%.
As can be seen from the results of < experimental example 1> and < experimental example 2 >: the evaporation tank with the built-in electromagnetic device can effectively improve the utilization efficiency of an electromagnetic field, improve the electromagnetic scale inhibition effect and reduce the energy consumption in the scale inhibition process.
The foregoing description has described specific embodiments of the present invention. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (10)
1. The utility model provides a built-in electromagnetic means's evaporating pot, includes evaporating pot body (7), and the top of evaporating pot body (7) is equipped with steam outlet (701), and the bottom of evaporating pot body (7) is equipped with feed liquid export (702), its characterized in that: the evaporating pot body (7) is further provided with a feeding pipe (8), the feeding pipe (8) stretches into the evaporating pot body (7) from the lower part of the evaporating pot body (7), the feeding pipe (8) positioned inside the evaporating pot body (7) is wound with an electromagnetic coil (1), and the electromagnetic coil (1) is connected with a power supply (2) arranged outside the evaporating pot body (7).
2. The evaporation tank with built-in electromagnetic device as set forth in claim 1, wherein: the feeding pipe (8) positioned inside the evaporating pot body (7) is composed of a horizontal part and a vertical part, the vertical part is arranged along the axis of the evaporating pot body (7), and the electromagnetic coil (1) is wound on the vertical part.
3. The evaporation tank with built-in electromagnetic device as set forth in claim 1 or 2, wherein: the electromagnetic coil (1) is a high-temperature resistant coil wound by one or more layers.
4. The evaporation tank with built-in electromagnetic device as claimed in claim 1 or 2, wherein: the power supply (2) is a direct current power supply or an alternating current power supply.
5. The utility model provides a high salt waste water vaporization system which characterized in that: comprises a mixing bucket (4) and an evaporation tank as claimed in any one of claims 1 to 4, wherein the discharge pipe of the mixing bucket (4) is connected with the feed pipe (8) of the evaporation tank body (7) through a feed pump (5).
6. The high salinity wastewater evaporation system of claim 5, characterized in that: and a heat exchanger (6) is also arranged on the discharge pipe of the mixing tank (4).
7. The high salinity wastewater evaporation system of claim 6, characterized in that: the mixing tank (4) is provided with a raw material inlet (11) and a backflow feed inlet, the backflow feed inlet is communicated with the bottom of the evaporating tank body (7) through a backflow pipe (9), and the backflow pipe (9) is provided with an electromagnetic valve (10).
8. The high salinity wastewater evaporating system of any one of claims 5-7, wherein: and a stirrer (3) is also arranged in the mixing material tank (4).
9. The evaporation treatment method of the high-salt-content wastewater is characterized by comprising the following steps: the high-salinity wastewater evaporation system according to claim 6, wherein the evaporation raw material flows into the mixing material tank (4) through the raw material inlet (11), the feed liquid is conveyed by the feed pump (5) and heated by the heat exchanger (6), and then flows into the feed pipe (8) and flows into the evaporation tank body (7) from the upper end of the feed pipe (8), the power supply (2) is switched on, the feed liquid in the feed pipe (8) and the feed liquid in the evaporation tank body (7) are both in an electromagnetic field, finally, the steam is discharged from the steam outlet (701), and the feed liquid concentrated by evaporation is discharged from the feed liquid outlet (702).
10. The evaporation treatment method of the high-salt-content wastewater is characterized by comprising the following steps: the high-salinity wastewater evaporation system of claim 7, wherein the evaporation raw material flows into the mixing material tank (4) through the raw material inlet (11), the feed liquid is conveyed by the feed pump (5) and heated by the heat exchanger (6), then enters the feed pipe (8) and flows into the evaporation tank body (7) from the upper end of the feed pipe (8), the power supply (2) is turned on, the feed liquid in the feed pipe (8) and the feed liquid in the evaporation tank body (7) are both in the electromagnetic field, the electromagnetic valve (10) is turned on to enable the feed liquid in the evaporation tank body (7) to enter the mixing material tank (4), the feed liquid and the raw material are fully mixed, the feed liquid in the mixing material tank (4) is circularly heated and circularly passes through the electromagnetic field, finally, the steam is discharged from the steam outlet (701), and the evaporated and concentrated feed liquid is discharged from the feed liquid outlet (702).
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| CN111389038A (en) * | 2020-04-16 | 2020-07-10 | 天津天大清能环境工程有限公司 | Anti-scaling evaporation concentration system and evaporation concentration method |
| CN212941479U (en) * | 2020-06-18 | 2021-04-13 | 天津天大清能环境工程有限公司 | Automatically cleaning evaporation concentrator |
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