CN202022819U - Knockout tower of high-concentration acidic extraction waste water - Google Patents
Knockout tower of high-concentration acidic extraction waste water Download PDFInfo
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- CN202022819U CN202022819U CN2011201116632U CN201120111663U CN202022819U CN 202022819 U CN202022819 U CN 202022819U CN 2011201116632 U CN2011201116632 U CN 2011201116632U CN 201120111663 U CN201120111663 U CN 201120111663U CN 202022819 U CN202022819 U CN 202022819U
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- 239000002351 wastewater Substances 0.000 title claims abstract description 81
- 238000000605 extraction Methods 0.000 title claims abstract description 25
- 230000002378 acidificating effect Effects 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 114
- 238000000926 separation method Methods 0.000 claims abstract description 64
- 239000003513 alkali Substances 0.000 claims abstract description 21
- 238000005273 aeration Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000003960 organic solvent Substances 0.000 claims abstract description 8
- 239000010802 sludge Substances 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 11
- 230000007797 corrosion Effects 0.000 claims description 9
- 238000005260 corrosion Methods 0.000 claims description 9
- 239000000523 sample Substances 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000010426 asphalt Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 abstract description 12
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 238000012806 monitoring device Methods 0.000 abstract description 6
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 230000001706 oxygenating effect Effects 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 6
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 6
- 239000003208 petroleum Substances 0.000 description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000000855 fermentation Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 230000001988 toxicity Effects 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CDXSJGDDABYYJV-UHFFFAOYSA-N acetic acid;ethanol Chemical compound CCO.CC(O)=O CDXSJGDDABYYJV-UHFFFAOYSA-N 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
Provided is a knockout tower of high-concentration acidic extraction waste water. The knockout tower integrates the devices for adjusting the potential of hydrogen (PH) value, indirect heating of steam, circulating water spraying, steam-water separation, oxygenating and aeration and the like. The knockout tower consists of an inner layer and an outer layer and is provided with a tower type tank body. The tank body is provided with an aerating apparatus, a PH monitoring device, a temperature control device, a spraying device, a turbine steam-water separator, a liquid level gauge, a spoil disposal device, an exhaust device, a waste water inlet, a waste water outlet, a alkali liquor inlet, a circulating water inlet and outlet opening, a steam inlet, a compressed air inlet, a condensate water outlet and a water circulating pump. The water inlet adopts pressure pipelines for conveying liquid, and the water outlet adopts artesian flow for conveying liquid. The knockout tower is capable of removing 50%-70% organic solvent of the high-concentration acidic extraction waste water.
Description
Technical Field
The utility model relates to an industrial wastewater treatment equipment is mainly to the high concentration acidic extraction waste water that contains acetic acid ethanol, butyl acetate, petroleum ether material particularly, through adding alkali regulation pH value, modes such as steam indirect heating, circulating water shower, catch water and aeration treatment get rid of the macromolecule organic matter that is difficult to biochemical degradation in the waste water, improve waste water biodegradability, create the preliminary treatment equipment of advantage for follow-up degree of depth materialization, biochemical treatment.
Background
For enterprises mainly using biological fermentation and producing crystals with specific molecular weight, the extraction process is necessary, most of the extraction process needs to be carried out under the condition of strong acid, because part of the extractant is dissolved in water and can not be recycled, the concentration of pollutants in the wastewater is high, the concentration of CODcr is 10-15 ten thousand mg/L, NH is3The concentration of-N is 2000-7000 mg/L, the organic wastewater is ultrahigh concentration, and the direct biochemical treatment of the organic wastewater is difficult to carry out. The wastewater has the following characteristics: 1. high concentration of wastewater pollutants, CODcr concentration of 10-15 ten thousand mg/L and NH3The concentration of-N is 2000-7000 mg/L, SO4 2-The concentration is about 480-38000 mg/L, and the waste is generatedThe impact load of water is high; 2. the pH = 0.4-2.0 of the wastewater, is strong acid and corrosive, and belongs to hazardous waste according to the hazardous waste identification standard, namely, corrosive identification (GB 5085.1-2007); 3. the wastewater contains a large amount of organic macromolecular organic matters (larger than or smaller than the molecular weight of a fermentation target object), and simultaneously contains a large amount of organic solvents, such as petroleum ether, ethyl acetate, butyl acetate and the like, and the traditional biochemical process cannot effectively treat the organic macromolecular organic matters. Contains a large amount of salt substances, has certain biological toxicity, and can seriously affect the biochemical effect if directly entering the biochemical treatment process, thereby causing the collapse of a biochemical system; 4. the treatment capacity of each section of the traditional process flow is unstable due to frequent fluctuation of water quality, and the fluctuation of the effluent quality is large; 5. the traditional process flow has poor adaptability to the water quality fluctuation of the wastewater, a biochemical system can be damaged after a very small accident occurs, and the biochemical system is not easy to recover. The wastewater is a difficult problem of biological fermentation engineering wastewater treatment research, and can be biochemically treated only after toxicity is removed and biochemical property is improved through effective pretreatment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high concentration acid extraction waste water knockout tower, be about 4.4 to pH very much, CODcr 10 ten thousand ~ 15 ten thousand mg/L, ammonia nitrogen 2000~7000mg/L, contain 2% ~ 4% petroleum ether simultaneously, ethyl acetate, the high concentration acid waste water of extractants such as butyl acetate, accomplish pH value regulation in a tower, steam indirect heating, circulating water sprays, steam-water separation and aeration treatment process, the difficult degradation macromolecular organic matter more than 50% ~ 70% is finally got rid of, final play water CODcr falls to 8 ten thousand ~ 10 ten thousand mg/L, the ammonia nitrogen falls to 1500 ~ 5000mg/L, the pH value is 9 ~ 10.
The purpose of the invention is realized as follows: a high-concentration acidic extraction wastewater separation tower is characterized in that a jacket is arranged at the lower part of a tower-type tank body, a steam inlet is arranged at the upper part of the jacket, and a condensed water outlet is arranged at the lower part of the jacket; a stirring device is arranged in the tank body; the upper part of the tank body is provided with a wastewater inlet, the lower part of the tank body is provided with a water outlet, and the water outlet is positioned above the condensed water outlet; the top of the tank body is provided with a PH probe, the middle part of the tank body is provided with an alkali liquor inlet, and the bottom of the tank body is provided with a sludge discharge port;
circulating water spray set: a water distributor is arranged above the liquid level in the tank body, the inlet of the circulating pump is communicated with a circulating water outlet at the lower part of the tank body through a pipeline, and the outlet of the circulating pump is communicated with a wastewater inlet on the tank body through a pipeline;
a steam-water separation device: the device consists of a steam-water separator and a separation net, and is arranged at the middle upper part of an inner cavity of a tank body, and the top of the tank body is provided with an exhaust port which is connected with an exhaust pipe and used for exhausting organic solvent gas after steam-water separation;
an aeration device: the compressed air inlet at the upper part of the liquid is communicated with a plurality of aeration heads arranged at the bottom of the inner cavity of the tank body through pipelines in the tank body, and the compressed air inlet is positioned above the water distributor and below the steam-water separation device.
The top of the tank body is provided with a temperature controller.
A liquid level meter is arranged on the tank body; the top of the tank body is provided with an inspection hole.
The lower part of the tank body is provided with three supporting feet, and a conical sludge hopper is arranged below the tank body.
The circulating pump adopts a wear-resistant and corrosion-resistant slurry pump.
The tank body is of a stainless steel structure, and the tank body is sequentially covered with an epoxy primer layer and an epoxy asphalt paint layer.
The blades of the stirring device and the steam-water separation device are made of stainless steel which is resistant to acid and alkali corrosion.
The pipeline of the circulating spray device is made of acid and alkali corrosion resistant PPR material.
The utility model has the advantages that:
1. the reactor is integrally designed, and integrates the operations of pH value adjustment, steam indirect heating, circulating water spraying, steam-water separation, oxygenation aeration and the like. 50-70 percent (based on the total amount of the organic solvent) of the organic solvent in the high-concentration acidic extraction wastewater can be removed.
2. The reactor has strong adaptability to the fluctuation of the water quality of the wastewater, can effectively remove the toxicity of the wastewater and improve the biochemical property, so that the CODcr of the treated wastewater is reduced to 8-10 ten thousand mg/L, the ammonia nitrogen is reduced to 1500-5000 mg/L, the pH value is 9-10, and the wastewater is alkalescent so as to enter the subsequent biochemical treatment process.
Drawings
Fig. 1 is a top view of the present invention.
Fig. 2 is a cross-sectional view taken along line a-a of fig. 1.
Detailed Description
In the figure: 101: a stirring device (disposed in the tank body); 102: a pH probe; 103: (turbo) steam-water separator; 104: a separation net; 105: a liquid level meter; 106: an inspection hole (arranged at the top of the tank body); 107: a water distributor; 108: an aeration head; 109: a temperature controller (a thermocouple of the temperature controller extends into the tank body); 110: a circulation pump; the tank body is provided with: 201: a steam inlet; 202: a circulating water outlet; 203: an exhaust port; 204: a water outlet; 205: a condensed water outlet; 206: a sludge discharge port; 207; a wastewater inlet; 208: a compressed air inlet; 209: and an alkali liquor inlet.
The utility model relates to a purpose-made tower reactor adopts earlier to add alkali regulation waste water pH value, and the steam indirect heating is bloated the technological method that compressed air combined together, adjusts high enriched acid extraction waste water pH value, and the separation of part ethyl acetate, butyl acetate, petroleum ether material is got rid of.
The tower reactor consists of an inner layer and an outer layer to form a steam heating jacket (the jacket is positioned at the lower part of the tank body). The tower tank is provided with an aeration device, a pH monitoring device, a temperature controller, a spraying device, a (turbine) steam-water separator, a liquid level instrument, a sludge discharge device, an exhaust device, a wastewater water inlet and outlet, an alkali liquor inlet and outlet, a circulating water inlet and outlet, a steam inlet, a compressed air inlet and a condensed water outlet, and is provided with a circulating water pump, the water inlet adopts a pressure pipeline to convey liquid, and the water outlet adopts a self-flowing to convey liquid. Wherein,
an aeration device: the aeration head is arranged in the middle of the bottom of the tower and used for uniformly mixing the wastewater and the added alkali;
a pH monitoring device: the top of the tower is provided with a pH probe which is used for monitoring the change of the pH value of the wastewater in the tower so as to calculate the addition amount of the alkali;
temperature controller (i.e., temperature monitoring device): the thermocouple of the separation tower is arranged at the top of the tank body (namely, the separation tower) and extends into the tank body for monitoring the temperature change of the wastewater in the tower;
(turbine) steam-water separation device (existing product): the device is arranged at the upper part of the inner cavity of the tank body, consists of a steam-water separator and a separation net and is used for removing water vapor carried in the gas containing the organic solvent;
a liquid level meter: the device is arranged on the tank body, is arranged on the outer side of the tower, is arranged below the steam-water separator, and is used for monitoring the liquid level change in the reactor;
a sludge discharge device: the device is arranged in the middle of the bottom of the tower, consists of a sludge discharge pipe and a valve which are communicated with each other and is used for discharging sediment and sludge generated in the tower;
an exhaust device: the gas-water separation device is arranged at the top of the tank body, consists of an exhaust port arranged at the top of the tank body and an exhaust pipe connected with the exhaust port and is used for exhausting gas containing the organic solvent after water vapor is separated by the (turbine) steam-water separation device;
wastewater inlet and wastewater outlet: the waste water inlet is arranged on the inner layer of the separation tower, is arranged below the steam-water separator (turbine), is provided with a water inlet which is commonly used with the spraying device and is used for discharging untreated high-concentration acidic extraction waste water raw water; the wastewater outlet is arranged at the bottom of the inner layer of the separation tower and above the settling zone, and wastewater automatically flows into a lower-level treatment unit;
alkali liquor import: the device is arranged in the middle of the inner layer of the separation tower and below the spraying device and is used for adding NaOH solution for neutralizing the pH value of the wastewater;
inlet and outlet of circulating water: the circulating water inlet and the waste water inlet are the same water inlet, when the waste water in the separation tower is heated, a waste water inlet pipeline valve is closed, a circulating water inlet pipeline valve is opened, the waste water in the tower is pumped into a water distributor (the existing equipment, water outlet holes are uniformly distributed on a ring pipe) by a circulating pump, and the spraying and defoaming in the tower are carried out; the circulating water outlet is arranged at the lower part of the inner layer of the separation tower and is parallel to the wastewater outlet, and the outlet pipeline is connected with the water inlet of the circulating water pump;
steam inlet (located in the upper part of the jacket): the middle part of the outer layer of the separation tower is used for feeding steam, indirectly heating the wastewater of the middle layer in the separation tower and keeping the slightly soluble extraction solvent in the wastewater near a boiling point (a certain temperature between two boiling points of water and volatile matters);
a compressed air inlet: the compressed air is sent to the aeration head through a pipeline above the water distributor and below the turbine steam-water separator;
a condensed water outlet (positioned at the lower part of the jacket and below the wastewater outlet): and the lower part of the outer layer of the separation tower is arranged below the water outlet and is used for discharging condensed water in a jacket of the outer layer of the separation tower.
Referring to fig. 1 and 2, the device is composed of an inner layer and an outer layer to form a steam heating jacket. Adopts a tower tank body, and is provided with an aeration device, a pH monitoring device, a temperature controller, a spraying device, a turbine steam-water separator, a liquid level instrument, a sludge discharge device, an exhaust device, a wastewater inlet and outlet, an alkali liquor inlet, a circulating water outlet, a steam inlet, a compressed air inlet and a condensed water outlet
An aeration device: the plurality of aeration heads 108 are arranged at the bottom of the inner cavity of the tank body; the compressed air inlet at the upper part of the tank body is communicated with a plurality of aeration heads through pipelines in the tank body, and the compressed air inlet is positioned above the water distributor and below the steam-water separation device.
A pH monitoring device: the device consists of a pH probe 102, which is arranged at the top of a tank body, and the probe extends to 40 cm-50 cm below the liquid level;
(turbine) steam-water separation device: is arranged at the middle upper part of the separation tower and consists of a turbine steam-water separator 103 and a separation net 104;
a liquid level meter: the liquid level meter 105 is installed outside the separation tower, the upper pipe orifice and the lower pipe orifice are communicated with the tower body, the upper pipe orifice is arranged below the steam-water separator in height and is controlled to be above the liquid level, and the lower pipe orifice is arranged above the sedimentation zone and is arranged below the water outlet;
a circulating water pump: the device is arranged on the ground parallel to the separation tower and used for circulating the wastewater in the separation tower to a 107 water distributor to realize self circulation, spraying and defoaming in the tower;
a sludge discharge device: the sludge discharge port is arranged in the middle of the bottom of the tank body and consists of a sludge discharge pipe and a valve;
an exhaust device: the exhaust device 203 is arranged at the top of the separation tower and consists of an exhaust port arranged on the tower body and an exhaust pipe connected with the exhaust port, and the exhaust pipe is connected with a pipeline of a blower of a boiler room;
wastewater inlet and wastewater outlet: the waste water inlet 207 is arranged on the inner layer of the separation tower, is positioned below the steam-water separator at the upper part of the tank body (turbine), is commonly used as a water inlet with the spraying device and is connected with a water inlet pipeline; the wastewater outlet 204 is arranged at the lower part of the tank body, namely at the bottom of the inner layer of the separation tower and above the sedimentation zone;
alkali liquor import: the alkali liquor inlet 209 is arranged in the middle of the tank body, or in the middle of the inner layer of the separation tower, below the spraying device, and is used for adding NaOH solution for neutralizing the pH value of the wastewater, and the alkali liquor conveying pipeline is connected;
and (3) circulating water outlet: the circulating water outlet 202 is arranged at the lower part of the inner layer of the separation tower, is parallel to the water outlet and is used for leading the wastewater in the separation tower to enter the water distributor through the water inlet to carry out spraying and defoaming in the tower;
a steam inlet: the steam inlet 201 is arranged in the middle of the outer layer of the separation tower and is connected with a steam conveying pipeline;
a compressed air inlet: the compressed air inlet 208 is arranged at the upper part of the inner layer of the separation tower, above the water distributor and below the turbine steam-water separator, and compressed air is sent to the aeration head through a pipeline;
and (3) a condensed water outlet: the condensed water outlet 205 is installed at the lower part of the outer layer of the separation tower below the water outlet.
The lower part of the tank body is provided with three supporting feet, and a conical sludge hopper is arranged below the tank body.
The circulation pump 110 employs a wear-resistant and corrosion-resistant slurry pump.
The tank body is of a stainless steel structure, and the tank body is sequentially covered with an epoxy primer layer and epoxy asphalt paint.
The blades of the stirring device and the steam-water separation device are made of stainless steel which is resistant to acid and alkali corrosion.
The pipeline of the circulating spray device is made of acid and alkali corrosion resistant PPR material.
Conditioning separator facilities equipment schedule
The wastewater treatment process comprises the following steps:
1) in fig. 1 and 2, the wastewater treated by the high concentration acidic extraction wastewater neutralization tower (the same patent as the above-mentioned patent application) is introduced into the inner layer of the high concentration acidic extraction wastewater separation tower through the wastewater inlet 207, and is supplied to the aeration head 108 through the compressed air inlet 208 to start aeration. The pH value of the waste water is about 4.4, the CODcr is 10-15 ten thousand mg/L, the ammonia nitrogen is 2000-7000 mg/L, and the high-concentration acidic extraction of extracting agents such as petroleum ether, ethyl acetate, butyl acetate and the like with the weight ratio of about 2-4% is simultaneously carried out;
2) adding the prepared NaOH solution into the inner layer of the high-concentration acidic extraction wastewater separation tower through an alkali liquor inlet 209, observing a pH probe 102, and adjusting the pH value of the wastewater to be alkalescent (9-10);
3) sending steam generated by the boiler into a jacket on the outer layer of the separation tower through a steam inlet 201, observing a temperature controller 109, heating the wastewater to about 75-85 ℃, maintaining the temperature range, and discharging condensed water through a condensed water outlet 205;
4) keeping heating and blowing for 5-8 h, and extracting an extracting agent (substances such as petroleum ether, ethyl acetate, butyl acetate and the like) in the wastewater from a liquid phase to a gas phase according to a certain proportion by utilizing a steam stripping principle under a near-boiling point state, and taking the extracting agent out of the gas phase by air;
5) at the moment, because the pH of the wastewater is alkalescent, a large amount of bubbles are generated in the stripping process, the wastewater in the separation tower can be led to the water distributor 107 through the circulating water outlet 202 by the circulating pump 110 to be sprayed so as to eliminate foams and realize self-circulation of the wastewater;
6) after the gas containing the extractant passes through the steam-water separator 103 after the steam stripping, the gas is introduced into a boiler for incineration disposal through an exhaust port 203 by a boiler room blower;
7) standing for 0.5-1 hour after uniform mixing, pumping the sediment settled at the bottom of the separation tower into a mud storage tank through a mud discharge port 206, and dehydrating and removing the sediment;
8) the supernatant in the separation tower is sent to a subsequent treatment facility through a water outlet 204; at the moment, the pH value of the wastewater is changed into alkalescence (pH = 9-10), more than 50% -70% of non-degradable macromolecular organic matters are removed, the biodegradability is improved, and the subsequent biochemical treatment can be carried out; the CODcr of the effluent of the separation tower is about 8-10 ten thousand mg/L, the ammonia nitrogen is reduced to 1500-5000 mg/L, and the pH value is about 9-10.
Claims (8)
1. A high-concentration acidic extraction wastewater separation tower is characterized in that: the lower part of the tower tank body is provided with a jacket, the upper part of the jacket is provided with a steam inlet (201), and the lower part of the jacket is provided with a condensed water outlet (205); a stirring device (101) is arranged in the tank body; the upper part of the tank body is provided with a wastewater inlet (207), the lower part of the tank body is provided with a water outlet (204), and the water outlet is positioned above the condensed water outlet (205); the top of the tank body is provided with a PH probe (102), the middle part of the tank body is provided with an alkali liquor inlet (209), and the bottom of the tank body is provided with a sludge discharge port (206);
circulating water spray set: a water distributor (107) is arranged above the liquid level in the tank body, the inlet of a circulating pump (110) is communicated with a circulating water outlet (202) at the lower part of the tank body through a pipeline, and the outlet of the circulating pump is communicated with a wastewater inlet (207) on the tank body through a pipeline;
a steam-water separation device: the device consists of a steam-water separator (103) and a separation net (104), and is arranged at the middle upper part of the inner cavity of the tank body, and the top of the tank body is provided with an exhaust port (203) which is connected with an exhaust pipe and used for exhausting organic solvent gas after steam-water separation;
an aeration device: a compressed air inlet (208) at the upper part of the liquid is communicated with a plurality of aeration heads (108) arranged at the bottom of the inner cavity of the tank body through an inner pipeline of the tank body, and the compressed air inlet (208) is positioned above the water distributor (107) and below the steam-water separation device.
2. The high-concentration acidic extraction wastewater separation tower as set forth in claim 1, characterized in that: and a temperature controller (109) is arranged at the top of the tank body.
3. The high-concentration acidic extraction wastewater separation tower as claimed in claim 2, which is characterized in that: a liquid level meter (105) is arranged on the tank body; the top of the tank body is provided with an inspection hole (106).
4. The high-concentration acidic extraction wastewater separation tower as set forth in claim 3, characterized in that: the lower part of the tank body is provided with three supporting feet, and a conical sludge hopper is arranged below the tank body.
5. The high-concentration acidic extraction wastewater separation tower as set forth in claim 4, characterized in that: the circulating pump (110) adopts a wear-resistant and corrosion-resistant slurry pump.
6. The high-concentration acidic extraction wastewater separation tower as set forth in claim 5, characterized in that: the tank body is of a stainless steel structure, and the tank body is sequentially covered with an epoxy primer layer and epoxy asphalt paint.
7. The high-concentration acidic extraction wastewater separation tower as claimed in claim 6, which is characterized in that: the blades of the stirring device and the steam-water separation device are made of stainless steel which is resistant to acid and alkali corrosion.
8. The high-concentration acidic extraction wastewater separation tower as claimed in claim 7, which is characterized in that: the pipeline of the circulating spray device is made of acid and alkali corrosion resistant PPR material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201116632U CN202022819U (en) | 2011-04-15 | 2011-04-15 | Knockout tower of high-concentration acidic extraction waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201116632U CN202022819U (en) | 2011-04-15 | 2011-04-15 | Knockout tower of high-concentration acidic extraction waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202022819U true CN202022819U (en) | 2011-11-02 |
Family
ID=44847779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201116632U Expired - Lifetime CN202022819U (en) | 2011-04-15 | 2011-04-15 | Knockout tower of high-concentration acidic extraction waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202022819U (en) |
-
2011
- 2011-04-15 CN CN2011201116632U patent/CN202022819U/en not_active Expired - Lifetime
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