CN211814015U - Evaporation concentration processing apparatus of high concentration waste liquid - Google Patents
Evaporation concentration processing apparatus of high concentration waste liquid Download PDFInfo
- Publication number
- CN211814015U CN211814015U CN202020119634.XU CN202020119634U CN211814015U CN 211814015 U CN211814015 U CN 211814015U CN 202020119634 U CN202020119634 U CN 202020119634U CN 211814015 U CN211814015 U CN 211814015U
- Authority
- CN
- China
- Prior art keywords
- waste liquid
- heat exchanger
- reaction tower
- concentration
- tail gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses an evaporation concentration processing device of high concentration waste liquid, which adopts a reaction tower to evaporate and concentrate the high concentration waste liquid, an external heat exchange system heats the high concentration waste liquid and the circulating waste liquid, low temperature air is directly contacted with the high temperature waste liquid in the tower, the air is used as a carrier, and the difference of the saturated vapor pressure of water molecules in the air is used as mass transfer power to evaporate and concentrate the waste liquid; discharging the concentrated slurry after evaporation concentration from the tower bottom for additional disposal; high-temperature saturated air coming out of the tower top is condensed and dehydrated through an external heat exchange device, obtained waste gas and condensate water simultaneously enter an aeration biological filter for biochemical treatment, treated tail gas enters an evaporation concentration system again for cyclic utilization, and the condensate water is discharged after reaching the standard. The unique air flow in the tower carries a moisture mechanism, no boiling phenomenon exists, the migration of other liquid phase components is avoided, the corrosion resistance of the equipment is improved, the investment cost is reduced, and the service life of the equipment is prolonged.
Description
Technical Field
The utility model belongs to the technical field of the energy-conserving minimizing of high concentration waste liquid is handled, concretely relates to evaporative concentration processing apparatus of high concentration waste liquid.
Background
In industrial production in China, a large amount of industrial waste liquid is generated, which is characterized by high salt (acid-base) and high concentration organic matters, high corrosiveness and toxicity, and large treatment difficulty, and the treatment cannot be carried out by adopting a traditional biochemical method and a membrane separation method generally.
Common industrial waste liquids include high-salt and high-organic-concentration waste liquids, high-salt waste liquids, and high-organic-concentration waste liquids, and these industrial waste liquids need to be subjected to reduction treatment and then finally disposed or recycled. Common treatment methods for high-salt and high-organic-concentration waste liquid include an electrochemical method, a DTRO method, an advanced oxidation method, an evaporation/incineration method and the like, common treatment methods for high-salt waste liquid include a membrane separation method, an evaporation method and the like, and common treatment methods for high-organic-concentration waste liquid include a biochemical treatment method, an advanced oxidation method and the like. The electrochemical method requires large amount of medicament, and the electrode is easy to corrode, so that the cost is high and the effect is poor; the high-grade oxidation method has large generation amount of hazardous waste and high medicament cost; membrane separation methods are prone to membrane fouling and membrane concentrates cannot be directly disposed of; the biochemical treatment method has unstable treatment effect and can generate dangerous waste sludge and the like. Therefore, the waste liquid is subjected to simple evaporation treatment by adopting an evaporation kettle and a single-double effect evaporator which are commonly used in the industry or evaporation treatment by adopting triple effect evaporation or MVR technology.
Aiming at the traditional concentration and reduction technology of high-concentration wastewater/waste liquid, the following problems are difficult to be effectively solved: 1) the existing evaporation concentration technology has large steam consumption, and the waste liquid needs to be heated to the boiling point under the operating pressure condition by continuously utilizing steam, so that the moisture leaves the system in the form of water vapor, and the purpose of evaporation concentration is achieved; 2) the traditional evaporation concentration device has high investment cost, and needs to utilize a large amount of expensive materials such as titanium alloy or graphite to solve the problems of low heat transfer efficiency, corrosion and scaling of equipment, yield reduction, operation fluctuation and the like caused by continuous accumulation of organic matters, salts and the like after waste liquid concentration; 3) the condensate water produced by the traditional evaporation concentration technology has high organic matter and ammonia nitrogen content and needs to be further treated, and a large amount of secondary solid wastes are produced in the treatment process.
Although the existing evaporation concentration technology is improved and optimized day by day and has a certain degree of improvement in the aspects of energy consumption, cost, operation and the like, a plurality of defects and difficulties are still not overcome, so that an evaporation concentration treatment technology with high economical efficiency, simple system, energy conservation and environmental protection is required to be explored and designed to achieve the aim of energy conservation and reduction of high-concentration wastewater.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an evaporative concentration processing apparatus of high concentration waste liquid to the above-mentioned problem that exists among the current evaporative concentration technique, adopt the air as the carrier, realize the evaporative concentration of high concentration waste liquid (waste water).
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an evaporation concentration treatment device for high-concentration waste liquid comprises a first heat exchanger, a second heat exchanger, a third heat exchanger, a reaction tower and a biological aerated filter;
the cold measurement of the first heat exchanger and the cold measurement of the second heat exchanger are sequentially connected with the reaction tower, waste liquid to be treated is sequentially heated by the first heat exchanger and the second heat exchanger and then is led into the reaction tower for concentration treatment, and the obtained concentrated liquid is discharged from a thick liquid outlet at the bottom of the reaction tower for subsequent treatment;
an air inlet is formed in the side face of the bottom of the reaction tower, and air is introduced into the reaction tower; a high-temperature saturated air outlet at the top of the reaction tower is connected with the hot side of the third heat exchanger and is used as a heat exchange medium of the hot side of the third heat exchanger; the cold side of the third heat exchanger is connected with the hot side of the first heat exchanger, and a cold side medium of the third heat exchanger is used as a hot side heat exchange medium of the first heat exchanger after heat exchange and temperature rise;
the third heat exchanger is provided with a condensed water outlet and a tail gas outlet, and high-temperature saturated air from the top of the reaction tower is subjected to heat exchange by the third heat exchanger and condensed to obtain dehumidified tail gas and condensed water; the condensed water outlet and the tail gas outlet are simultaneously connected to the aeration biological filter;
the top of the biological aerated filter is provided with a recycled tail gas outlet and a tail gas discharge port, and the bottom of the biological aerated filter is provided with a filter discharge port; the recycled tail gas is connected to an air inlet on the bottom side of the reaction tower through a recycled tail gas outlet on the top, is mixed with externally introduced air and then is introduced into the reaction tower, and a recycled tail gas air pipe is provided with a fan; and the residual tail gas and the condensate water are respectively treated by a tail gas discharge port at the top and a filter discharge port to reach the standard and then discharged.
Further, the bottom side of reaction tower is equipped with concentrated waste liquid outlet, and it is connected with the cold side feed inlet of first heat exchanger, mixes upper strata exhaust concentrated waste liquid and pending waste liquid through the circulating pump, and the leading-in reaction tower carries out the concentrated processing after heating in proper order through first heat exchanger, second heat exchanger again.
Furthermore, a cooling tower is connected between the hot side discharge port of the first heat exchanger and the cold side feed inlet of the third heat exchanger, and is used for cooling a hot side heat exchange medium of the first heat exchanger and then serving as a cold side heat exchange medium of the third heat exchanger, so that the condensation effect is improved.
Specifically, a buffer tank and a vacuum pump are connected between the tail gas outlet of the third heat exchanger and the biological aerated filter, and negative pressure is provided by the vacuum pump.
Furthermore, a spraying device is arranged at the top of the tower inside the reaction tower, and waste liquid to be treated led into the reaction tower is sprayed from top to bottom through the spraying device so as to increase the mass transfer area.
Specifically, the air inlet is connected with an external air pipe, and the air pipe is provided with a fan and a gas flowmeter.
Furthermore, the thick liquid outlet at the bottom of the reaction tower is connected with an external thick liquid storage tank, and the thick liquid obtained by concentration treatment is collected in a centralized manner, so that the subsequent treatment is conveniently carried out.
The utility model discloses an air is as the carrier, according to different temperatures under, the difference of the saturated vapor pressure of hydrone in the air carries out evaporative concentration as mass transfer power to realize the evaporative concentration of high concentration waste liquid. Because the air and the high-concentration waste liquid are directly contacted and evaporated in the tower, the heating interface and the phase change interface are separated by the unique external heat exchange system, so that the heat exchanger is not easy to corrode and scale, and the continuous operation time is prolonged. The evaporation temperature in the tower is controlled at 50-75 ℃, and the low-temperature evaporation enables the reaction tower to be made of non-metallic materials, thereby improving the corrosion resistance of the equipment, reducing the investment cost and prolonging the service life. And the unique air flow in the tower carries a moisture mechanism, so that the boiling phenomenon is avoided, the migration of other liquid phase components is avoided, and the corrosion of equipment is avoided. Waste heat, waste heat or low-grade heat source in the plant is fully utilized to exchange heat with the high-concentration waste liquid so as to heat the high-concentration waste liquid, and the heat energy consumption of the system can be further reduced. The high-temperature saturated air after evaporation concentration in the tower is condensed and dehumidified through a simple plate heat exchanger, a heat exchanger system of the waste liquid and a heat exchanger system of the high-temperature saturated air are connected with each other to form a unique heat energy recovery unit, the cyclic utilization efficiency of heat energy in the system is improved, and the steam energy consumption is saved. The tail gas end outlet pipeline is provided with a vacuum system, the system is in a negative pressure state, so that the moisture is easier to evaporate, the air and energy consumed by evaporating the same amount of moisture are less, and the energy consumption is saved. The generated tail gas and the condensate water enter the aeration biological filter together for biochemical treatment, part of the treated tail gas is recycled, and the rest tail gas and the condensate water are discharged after reaching the standard, so that the problems of high condensate water organic matter content and high ammonia nitrogen caused by high-temperature evaporation are avoided while the waste gas is reduced.
Has the advantages that:
the utility model adopts the reaction tower to evaporate and concentrate the high-concentration waste liquid, the external heat exchange system heats the high-concentration waste liquid and the circulating waste liquid, the low-temperature air is directly contacted with the high-temperature waste liquid in the tower, the air is used as a carrier, and the difference of the saturated vapor pressure of water molecules in the air is used as mass transfer power to evaporate and concentrate the waste liquid; discharging the concentrated slurry after evaporation concentration from the tower bottom for additional disposal; high-temperature saturated air coming out of the tower top is condensed and dehydrated through an external heat exchange device, obtained waste gas and condensate water simultaneously enter an aeration biological filter for biochemical treatment, treated tail gas enters an evaporation concentration system again for cyclic utilization, and the condensate water is discharged after reaching the standard.
The utility model has the advantages that the air and the high concentration waste liquid are directly contacted and evaporated in the tower, the unique waste liquid external heat exchange system enables the heating interface and the phase change interface to be separated, the heat exchanger is not easy to corrode and scale, the continuous operation time is prolonged, and the efficiency of evaporation concentration is improved; the evaporation temperature in the reaction tower is controlled at 50-75 ℃, and the low-temperature evaporation enables the reaction tower to be made of non-metallic materials, thereby improving the corrosion resistance of the equipment, reducing the investment cost and prolonging the service life of the equipment. Air is used as a carrier, and a unique air flow in the tower carries a moisture mechanism, so that the boiling phenomenon is avoided, the migration of other liquid-phase components is avoided, and the corrosion of equipment is avoided. The high-temperature saturated air after evaporation concentration in the tower is condensed and dehumidified through a simple plate heat exchanger, a heat exchanger system of the waste liquid and a heat exchanger system of the high-temperature saturated air are connected with each other to form a unique heat energy recovery unit, the cyclic utilization efficiency of heat energy in the system is improved, and the steam energy consumption is saved. The tail gas end outlet pipeline is provided with a vacuum system which is in a negative pressure state, so that water is easier to evaporate, and energy consumption is saved. The generated tail gas and the condensed water enter the aeration biological filter together for biochemical treatment, the problems of higher organic matter content and higher ammonia nitrogen of the condensed water caused by high-temperature evaporation are avoided while the waste gas is reduced, the treated tail gas can be recycled, and the condensed water is discharged after reaching the standard.
Drawings
These and/or other advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings and the following detailed description.
Fig. 1 is a schematic structural view of the evaporation concentration treatment apparatus of the present invention.
Wherein each reference numeral represents: 1, a fan; 2, a gas flow meter; 3, a reaction tower; 4, a spraying device; 5 circulating pump; 6, a first heat exchanger; 7 a second heat exchanger; 8, a thick slurry storage tank; 9 a third heat exchanger; 10 cooling tower; 11 a buffer tank; 12 a vacuum pump; 13 aerating biological filter; 14 air pipes; 15 a water pipe; 16 air inlets; 17 high-temperature saturated air outlet; 18 a concentrated waste liquor outlet; 19 a high-temperature waste liquid inlet; 20 a thick slurry outlet; 21 a first heat exchanger cold measurement discharge port; 22 a third heat exchanger cold measurement discharge port; 23, discharging a hot side of the first heat exchanger; 24, discharging a cooling tower; 25 a condensed water outlet; 26 tail gas outlet; 27 recycling a tail gas outlet; 28, a filter tank discharge port; 29 cold side feed inlet of the first heat exchanger; 30 a hot side feed inlet of the second heat exchanger; 31 a discharge port at the hot side of the second heat exchanger; 32 tail gas discharge port.
Detailed Description
The invention will be better understood from the following examples.
The drawings in the specification show the structure, ratio, size, etc. only for the purpose of matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and not for the purpose of limiting the present invention, so the present invention does not have the essential meaning in the art, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and achievable purpose of the present invention. Meanwhile, the terms "upper", "lower", "front", "rear", "middle", and the like used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
As shown in FIG. 1, the evaporation concentration treatment apparatus mainly comprises a first heat exchanger 6, a second heat exchanger 7, a third heat exchanger 9, a reaction tower 3 and a biological aerated filter 13.
The first heat exchanger cold measurement feed inlet 29 is used for leading in waste liquid to be treated, the first heat exchanger cold measurement discharge outlet 21 is connected with the second heat exchanger cold measurement feed inlet, the second heat exchanger cold measurement discharge outlet is connected to a high-temperature waste liquid inlet 19 of the spraying device 4 in the reaction tower 3 through a water pipe 15, and the waste liquid to be treated, which is sequentially heated by the first heat exchanger 6 and the second heat exchanger 7, is sprayed in the tower from top to bottom.
An air inlet 16 is arranged on the side surface of the bottom of the reaction tower 3 and is connected with an external air pipe, and a fan 1 and a gas flowmeter 2 are arranged on the air pipe and are used for controlling the air quantity and the air speed led into the tower; a high-temperature saturated air outlet 17 at the top of the reaction tower 3 is connected with the hot side of the third heat exchanger 9, the high-temperature saturated air after absorbing moisture in the tower flows out of the top of the reaction tower to be used as a hot side heat exchange medium of the third heat exchanger 9, and exchanges heat with circulating water from the hot side of the first heat exchanger 6 to heat the cooled circulating water, and meanwhile, the high-temperature saturated air is condensed to obtain dehumidified tail gas and condensed water; and a third heat exchanger cold measurement discharge hole 22 is connected with a hot side feed inlet of the first heat exchanger 6, a first heat exchanger hot side discharge hole 23 is connected to the cooling tower 10, and a cooling tower discharge hole 24 is connected to a cold measurement feed inlet of the third heat exchanger 9. The third heat exchanger 9 is provided with a condensed water outlet 25 and a tail gas outlet 26, the condensed water outlet 25 is directly connected to the biological aerated filter 13, a buffer tank 11 and a vacuum pump 12 are connected between the tail gas outlet 26 and the biological aerated filter 13, and negative pressure is provided by the vacuum pump 12.
The side of the bottom of the reaction tower 3 is provided with a concentrated waste liquid outlet 18 which is connected with a cold testing feed inlet 29 of the first heat exchanger, the concentrated waste liquid discharged from the upper layer is mixed with the waste liquid to be treated by a circulating pump 5, and the concentrated waste liquid is heated by the first heat exchanger 6 and the second heat exchanger 7 in sequence and then is led into the reaction tower 3 for concentration treatment. Concentrated liquid at the bottom of the reaction tower 3 is discharged from a concentrated slurry outlet 20 at the bottom, enters an external concentrated slurry storage tank 8, is intensively collected and concentrated to obtain concentrated slurry, and is convenient for subsequent treatment.
High-temperature steam is introduced into a hot side feeding port 30 of the second heat exchanger to serve as a heat exchange medium, the high-temperature steam is condensed into high-temperature hot water after heat exchange, and the high-temperature steam is refluxed and prepared again after being discharged through a hot side discharging port 31 of the second heat exchanger.
The top of the biological aerated filter 13 is provided with a recycled tail gas outlet 27 and a tail gas discharge port 32, and the bottom is provided with a filter discharge port 28; the top recycling tail gas outlet 27 is connected to an air pipe of the air inlet 16 at the bottom of the reaction tower 3 through an air pipe 14, and the tail gas treated by the fan 1 is mixed with externally introduced air and then is guided into the reaction tower 3 together to be used as a water molecule carrier. And the residual tail gas and the condensate water are respectively discharged through a tail gas discharge port 32 and a filter tank discharge port 28 after being treated to reach the standard.
Example 1
Through the utility model discloses the device contains the acid, high organic matter waste liquid that contains salt to certain chip processing enterprise carries out the evaporative concentration processing, through live and business turn over water quality testing analysis of engineering to it predicts the evaluation to assist certain engineering the utility model discloses a benefit.
The engineering live steps are as follows:
(1) heating the waste liquid to be treated at the normal temperature of 20-30 ℃ to 45-55 ℃ by a first heat exchanger, and then heating the waste liquid to about 75 ℃ by a second heat exchanger;
(2) conveying the waste liquid to be treated, which is heated to about 75 ℃ in the step (1), to the top of a reaction tower, spraying from top to bottom, introducing air to the bottom of the reaction tower, flowing from bottom to top, enabling the air to be in contact with the high-temperature waste liquid, taking away moisture in the waste liquid by taking the air as a carrier, and keeping the temperature in the reaction tower at 50-75 ℃;
(3) the upper part of the concentrated waste liquid at 50-60 ℃ in the reaction tower is sent to the step (1) by a circulating pump, and is mixed with the waste liquid to be treated into medium-temperature waste liquid at about 40 ℃ for retreatment; the high-temperature saturated air after absorbing the moisture flows out of the top of the reaction tower and is used as a heat source at the hot side of the third heat exchanger to exchange heat with the circulating water from the hot side of the first heat exchanger, the cooled circulating water is heated, and meanwhile, the high-temperature saturated air is condensed to obtain dehumidified tail gas and condensed water;
(4) simultaneously sending the dehumidified tail gas and the condensed water obtained in the step (3) into an aeration biological filter for biochemical treatment; and (3) conveying the treated recycled tail gas to the step (2), mixing the recycled tail gas with air, introducing the mixed gas and the air into the reaction tower together, and discharging the residual tail gas and the condensate water after the residual tail gas and the condensate water are treated to reach the standard.
The concentration multiple of the waste liquid is calculated by detecting CODcr, TDS, ammonia nitrogen and calcium and magnesium ion concentration of inlet water and outlet water, and the result is shown in Table 1. Wherein the CODcr concentration is determined by a potassium dichromate method according to GB 11914-89. The TDS concentration is measured by a TDS measuring instrument. The ammonia nitrogen concentration is measured by adopting a nano-grade reagent spectrophotometry. The concentration of calcium and magnesium ions is measured by a calcium and magnesium ion measuring instrument. The concentration multiple is the ratio of the volume of the original waste liquid to the volume of the concentrated solution.
According to detection data, the CODcr concentration of condensed water after evaporation concentration is 30mg/L, the removal rate is 98.33%, the TDS concentration is 100mg/L, the removal rate is 99.90%, the ammonia nitrogen concentration is 1mg/L, the removal rate is 95%, and the treatment effect on waste liquid is good.
TABLE 1 Water quality comparison of inlet and outlet water
Example 2
Through the utility model discloses the device carries out the evaporative concentration processing to the mixed waste liquid that contains acid, cutting fluid, emulsion and release agent of certain machining enterprise, through the live and business turn over water quality testing analysis of engineering to it predicts the evaluation to assist certain engineering the utility model discloses a benefit.
The engineering live steps are as follows:
(1) heating the waste liquid to be treated at the normal temperature of 20-30 ℃ to 45-55 ℃ by a first heat exchanger, and then heating the waste liquid to about 75 ℃ by a second heat exchanger;
(2) conveying the waste liquid to be treated, which is heated to about 75 ℃ in the step (1), to the top of a reaction tower, spraying from top to bottom, introducing air to the bottom of the reaction tower, flowing from bottom to top, enabling the air to be in contact with the high-temperature waste liquid, taking away moisture in the waste liquid by taking the air as a carrier, and keeping the temperature in the reaction tower at 50-75 ℃;
(3) the upper part of the concentrated waste liquid at 50-60 ℃ in the reaction tower is sent to the step (1) by a circulating pump, and is mixed with the waste liquid to be treated into medium-temperature waste liquid at about 40 ℃ for retreatment; the high-temperature saturated air after absorbing the moisture flows out of the top of the reaction tower and is used as a heat source at the hot side of the third heat exchanger to exchange heat with the circulating water from the hot side of the first heat exchanger, the cooled circulating water is heated, and meanwhile, the high-temperature saturated air is condensed to obtain dehumidified tail gas and condensed water;
(4) simultaneously sending the dehumidified tail gas and the condensed water obtained in the step (3) into an aeration biological filter for biochemical treatment; and (3) conveying the treated recycled tail gas to the step (2), mixing the recycled tail gas with air, introducing the mixed gas and the air into the reaction tower together, and discharging the residual tail gas and the condensate water after the residual tail gas and the condensate water are treated to reach the standard.
The concentration times of the waste liquid are calculated by detecting CODcr, TDS, ammonia nitrogen, calcium and magnesium ion concentration and conductivity of inlet water and outlet water, and the results are shown in Table 2. Wherein the CODcr concentration is determined by a potassium dichromate method according to GB 11914-89. The ammonia nitrogen concentration is measured by adopting a nano-grade reagent spectrophotometry. The concentration of calcium and magnesium ions is measured by a calcium and magnesium ion measuring instrument. The conductivity was measured using a conductivity detector. The concentration multiple is the ratio of the volume of the original waste liquid to the volume of the concentrated solution.
According to detection data, the CODcr concentration of condensed water after evaporation concentration is 50mg/L, the removal rate reaches 99.98%, the conductivity is 500us/cm, the removal rate is reduced by 96%, the ammonia nitrogen removal rate is 91.4%, and the treatment effect on waste liquid is good.
TABLE 2 Water quality comparison of inlet and outlet water
The utility model provides a thought and method of evaporation concentration processing apparatus of high concentration waste liquid, the method and the way that specifically realize this technical scheme are many, above only the utility model discloses a preferred embodiment should point out, to ordinary technical personnel in this technical field, do not deviate from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improvements should also regard as with moist decorations the utility model discloses a protection scope. All the components not specified in the present embodiment can be realized by the prior art.
Claims (7)
1. An evaporation concentration treatment device for high-concentration waste liquid is characterized by comprising a first heat exchanger (6), a second heat exchanger (7), a third heat exchanger (9), a reaction tower (3) and a biological aerated filter (13);
the cold side of the first heat exchanger (6) and the cold side of the second heat exchanger (7) are sequentially connected with the reaction tower (3), waste liquid to be treated is sequentially heated by the first heat exchanger (6) and the second heat exchanger (7) and then is introduced into the reaction tower (3) for concentration treatment, and the obtained concentrated liquid is discharged from a concentrated slurry outlet (20) at the bottom of the reaction tower (3) for subsequent treatment;
an air inlet (16) is formed in the side face of the bottom of the reaction tower (3) and introduces air into the reaction tower (3); a high-temperature saturated air outlet (17) at the top of the reaction tower (3) is connected with the hot side of the third heat exchanger (9); the cold side of the third heat exchanger (9) is connected with the hot side of the first heat exchanger (6);
the third heat exchanger (9) is provided with a condensed water outlet (25) and a tail gas outlet (26); the condensed water outlet (25) and the tail gas outlet (26) are simultaneously connected into the biological aerated filter (13);
a recycled tail gas outlet (27) and a tail gas discharge port (32) are arranged at the top of the biological aerated filter (13), and a filter discharge port (28) is arranged at the bottom of the biological aerated filter; the recycled tail gas is connected to an air inlet (16) on the side face of the bottom of the reaction tower (3) through a top recycled tail gas outlet (27), and is mixed with externally introduced air and then introduced into the reaction tower (3); and the residual tail gas and the condensate water are respectively treated by a top tail gas discharge port (32) and a filter tank discharge port (28) and then discharged after reaching the standard.
2. The evaporative concentration treatment device of high-concentration waste liquid according to claim 1, wherein the side surface of the bottom of the reaction tower (3) is provided with a concentrated waste liquid outlet (18) which is connected with the cold side feed inlet of the first heat exchanger (6), the discharged concentrated waste liquid is mixed with the waste liquid to be treated by the circulating pump (5), and the mixed waste liquid is heated by the first heat exchanger (6) and the second heat exchanger (7) in sequence and then introduced into the reaction tower (3) for concentration treatment.
3. The evaporative concentration treatment device of high-concentration waste liquid according to claim 1, wherein a cooling tower (10) is connected between the hot side outlet (23) of the first heat exchanger (6) and the cold side inlet of the third heat exchanger (9).
4. The apparatus for evaporative concentration treatment of high concentration waste liquid according to claim 1, wherein a buffer tank (11) and a vacuum pump (12) are connected between the exhaust gas outlet (26) of the third heat exchanger (9) and the biological aerated filter (13).
5. The apparatus for evaporation concentration treatment of high concentration waste liquid according to claim 1, wherein a spray device (4) is provided at the top of the reaction tower (3), and the waste liquid to be treated introduced into the reaction tower (3) is sprayed from the top down by the spray device (4).
6. The evaporative concentration treatment apparatus for high concentration waste liquid according to claim 1, wherein the air inlet (16) is connected to an external air pipe, and the air pipe is provided with a blower (1) and a gas flow meter (2).
7. The apparatus for evaporation concentration treatment of high concentration waste liquid according to claim 1, wherein the thick liquid outlet (20) at the bottom of the reaction tower (3) is connected to an external thick liquid storage tank (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020119634.XU CN211814015U (en) | 2020-01-19 | 2020-01-19 | Evaporation concentration processing apparatus of high concentration waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020119634.XU CN211814015U (en) | 2020-01-19 | 2020-01-19 | Evaporation concentration processing apparatus of high concentration waste liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211814015U true CN211814015U (en) | 2020-10-30 |
Family
ID=72990779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020119634.XU Active CN211814015U (en) | 2020-01-19 | 2020-01-19 | Evaporation concentration processing apparatus of high concentration waste liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211814015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111115979A (en) * | 2020-01-19 | 2020-05-08 | 江苏省环科院环境科技有限责任公司 | Evaporation concentration treatment device and method for high-concentration waste liquid |
| CN115140794A (en) * | 2022-07-07 | 2022-10-04 | 常州市鼎亨机电设备有限公司 | Low-temperature evaporation device with automatic scale removing function for wastewater treatment |
-
2020
- 2020-01-19 CN CN202020119634.XU patent/CN211814015U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111115979A (en) * | 2020-01-19 | 2020-05-08 | 江苏省环科院环境科技有限责任公司 | Evaporation concentration treatment device and method for high-concentration waste liquid |
| CN111115979B (en) * | 2020-01-19 | 2024-03-29 | 江苏省环境工程技术有限公司 | Evaporation concentration treatment device and method for high-concentration waste liquid |
| CN115140794A (en) * | 2022-07-07 | 2022-10-04 | 常州市鼎亨机电设备有限公司 | Low-temperature evaporation device with automatic scale removing function for wastewater treatment |
| CN115140794B (en) * | 2022-07-07 | 2023-09-19 | 常州市鼎亨机电设备有限公司 | Low-temperature evaporation device with automatic scale removal function for wastewater treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211814015U (en) | Evaporation concentration processing apparatus of high concentration waste liquid | |
| CN101786754A (en) | Zero-emission treatment process for salt-containing wastewater | |
| CN111115979A (en) | Evaporation concentration treatment device and method for high-concentration waste liquid | |
| CN210795830U (en) | Circulating baffle type submerged combustion evaporator | |
| CN106669208B (en) | A kind of system and technique for strengthening brine waste concentration using low-temperature flue gas | |
| CN210764425U (en) | Solar high-temperature high-pressure expansion flash system for salt-containing wastewater | |
| CN219009958U (en) | Rectification deamination system | |
| CN217163255U (en) | A rectification equipment that is arranged in N-methylaniline production methyl alcohol to retrieve | |
| CN109319993A (en) | A kind of load vapour formula hc effluent evaporation and concentration processing unit | |
| CN213265806U (en) | Multi-effect flash evaporation concentration system for salt-containing wastewater driven by waste heat of slag flushing water | |
| CN212998429U (en) | Heat recovery low-temperature normal-pressure evaporator | |
| CN213771408U (en) | Intermittent type formula electricity heating liquid sprays evaporation plant | |
| CN210787309U (en) | Condensing system | |
| CN108726769A (en) | A kind of advanced treatment and reclamation method of flue gas desulfurization liquid | |
| CN210595357U (en) | Low-cost high salt waste water solid-liquid separation's device | |
| CN207243531U (en) | A kind of membrane distillation purifier based on industrial exhaust heat | |
| CN203639182U (en) | Small-sized seawater desalination device adopting hot water as hot source way | |
| CN208485624U (en) | A kind of physical processing apparatus of industry strong acid and strong base high-salt wastewater | |
| CN206033323U (en) | Device of water and electricity coproduction | |
| CN207734625U (en) | It is a kind of frequently to flow backwards vacuum membrane distillation Waste water concentrating reducing device | |
| CN217773246U (en) | Single-effect evaporation waste heat utilization system | |
| CN213977037U (en) | Device for concentrating and crystallizing by utilizing humidity difference of air | |
| CN208440310U (en) | A kind of use in waste water treatment evaporator and high concentration wastewater treatment system with high salt | |
| CN217808812U (en) | Energy-conserving effluent disposal system of atmospheric pressure formula | |
| CN218709344U (en) | Desulfurization waste water decrement system of two-effect flash distillation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210816 Address after: 210000 Floor 9, unit 3, building 2, No. 8, Jialing Jiangdong Street, Jianye District, Nanjing, Jiangsu Province Patentee after: Jiangsu Environmental Engineering Technology Co.,Ltd. Address before: No.16, Tongjiang Road, Jianye District, Nanjing City, Jiangsu Province, 210000 Patentee before: JIANGSU PROVINCIAL ACADEMY OF ENVIRONMENTAL SCIENCES, ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |