CN115159610A - Efficient separation tower and system and method for purifying wastewater containing carbon disulfide - Google Patents
Efficient separation tower and system and method for purifying wastewater containing carbon disulfide Download PDFInfo
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- CN115159610A CN115159610A CN202210730545.2A CN202210730545A CN115159610A CN 115159610 A CN115159610 A CN 115159610A CN 202210730545 A CN202210730545 A CN 202210730545A CN 115159610 A CN115159610 A CN 115159610A
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- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 title claims abstract description 315
- 239000002351 wastewater Substances 0.000 title claims abstract description 75
- 238000000926 separation method Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 198
- 239000007789 gas Substances 0.000 claims abstract description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 30
- 239000002912 waste gas Substances 0.000 claims abstract description 18
- 238000011084 recovery Methods 0.000 claims abstract description 13
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 claims abstract description 8
- 238000004064 recycling Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 230000008016 vaporization Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 69
- 238000012856 packing Methods 0.000 claims description 39
- 239000007921 spray Substances 0.000 claims description 19
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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
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1487—Removing organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/30—Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/40—Organic compounds containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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Abstract
The invention relates to a high-efficiency separation tower and a system and a method for purifying waste water containing carbon disulfide, wherein the purification method comprises the following steps: uniformly collecting the carbon disulfide-containing wastewater into a carbon-containing water collecting tank; conveying the carbon disulfide-containing wastewater in the carbon-containing water collecting tank to an efficient separation tower for treatment, and vaporizing and separating carbon disulfide in the carbon disulfide-containing wastewater; and the separated carbon disulfide gas is discharged into a waste gas recovery system through a water ring vacuum pump, and the water for removing the carbon disulfide firstly enters a water seal tank and then overflows into a decarbonized water collecting tank for recycling or discharging. The invention mainly solves the safety problem and reduces the ignition hidden danger of the carbon disulfide from the source; secondly, as an effective environmental protection treatment measure, the treatment target is realized after the carbon disulfide is removed from the wastewater from the source; and the third project has great economic benefit, and the separated carbon disulfide and clean water can be recycled to a production system.
Description
Technical Field
The invention relates to an efficient separation tower and a system and a method for purifying waste water containing carbon disulfide, in particular to a system and a method for purifying waste water containing carbon disulfide in a viscose fiber factory, and belongs to the field of treatment of waste water in viscose fiber production.
Background
Carbon disulfide is a main raw material for producing viscose fibers, is an extremely volatile organic matter, is extremely flammable and irritant, not only damages nerves and blood vessels, but also causes the problems of catalyst inactivation, equipment corrosion and the like. Dissolved and undissolved carbon disulfide exists in the wastewater, and firstly, the undissolved carbon disulfide causes safety problems, and if the carbon disulfide is accumulated in a trench, a fire disaster is easily caused; and secondly, both dissolved and undissolved carbon disulfide are sources of environmental pollution. At present, the existing process in the viscose fiber industry adopts an aeration stripping mode to treat the carbon disulfide-containing wastewater, namely, the wastewater is sent to a sewage regulating tank through an underground or overground pipeline, and air is blown into the sewage regulating tank to bring carbon disulfide gas into the atmosphere. However, the discharge of waste gas containing carbon disulfide is different from the discharge of waste water and waste residue, and the waste gas directly harms the health of people; and the carbon disulfide-containing wastewater has potential safety hazards of volatilization poisoning, ignition and explosion in the conveying process, thereby threatening the normal and safe production of factories.
Disclosure of Invention
The invention aims to provide an efficient separation tower and a system and a method for purifying waste water containing carbon disulfide, which are used for treating the waste water containing carbon disulfide in viscose fiber factories.
The technical scheme for solving the technical problems is as follows: the utility model provides a high-efficient knockout tower, includes tower body, feed liquor spray set and packing layer, the packing layer set up in the tower body, feed liquor spray set up in top in the tower body is and be located the top of packing layer the top of tower body is equipped with the extraction opening, the lateral wall lower part of tower body is equipped with down the extraction opening, the bottom of tower body is equipped with the delivery port.
The invention has the beneficial effects that: compared with the traditional vacuum degassing device, the efficient separation tower is internally provided with the filler layer, so that the retention time of liquid in the device is prolonged, the surface area of a liquid phase is increased, the distribution condition of the liquid in time and space is optimized, and the separation efficiency and the separation effect are obviously improved.
The efficient separation tower can realize efficient separation of carbon disulfide and water, the wastewater containing carbon disulfide is uniformly sprayed on the upper surface of the packing layer through the liquid inlet spraying device, the wastewater containing carbon disulfide flows through the packing layer along the surface of the bulk packing under the action of gravity, a larger gas-liquid contact area is obtained in the flowing process, the carbon disulfide in the wastewater is converted into gas under the negative pressure condition to be removed, and the gas is pumped out through the water ring vacuum pump through the upper and lower pumping ports.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the packing layer comprises bulk packing and a packing support plate, the packing support plate comprises a grid plate and a metal wire mesh, the grid plate is fixedly connected with the inner side wall of the tower body, the metal wire mesh is laid on the grid plate, the bulk packing is stacked on the metal wire mesh, and the lower suction opening is formed in the position, corresponding to the upper side of the packing support plate, of the side wall of the tower body.
Adopt above-mentioned further scheme's beneficial effect be that the grid plate material is alloy or plastics, and wire mesh lays in the grid plate top. The filler bearing plate plays a role in bearing the filler layer, ensuring smooth circulation of treated water and preventing bulk fillers from falling.
And further, liquid blocking plates are respectively arranged on the upper side of the lower pumping hole and one side of the upper pumping hole close to the liquid inlet spraying device.
The beneficial effect of adopting the further scheme is that the liquid baffle plate is connected to the inner wall of the high-efficiency separation tower in a welding or bolt connection mode, and a region right opposite to the air suction opening is partially shielded, so that fog drops sprayed by the spraying device are prevented from being sucked into the air suction opening.
Further, the feed liquor spray set is the shower nozzle with feed liquor pipe intercommunication, the top of tower body is equipped with the water inlet, the one end of feed liquor pipe is passed the water inlet extends to the top of packing layer, and communicates the shower nozzle.
Further, a pressure detection device is further arranged on the tower body.
Another technical solution of the present invention for solving the above technical problems is as follows: the utility model provides a purify system that contains carbon disulfide waste water, including carbonaceous water collection tank, gas-liquid separation jar, water seal tank, water ring vacuum pump, decarbonization water collection tank and high-efficient knockout tower, the bottom of carbonaceous water collection tank with the feed liquor spray set intercommunication of high-efficient knockout tower, the last extraction opening of high-efficient knockout tower and lower extraction opening all with the air inlet intercommunication of gas-liquid separation jar, the gas vent of gas-liquid separation jar with the air inlet intercommunication of water ring vacuum pump, the gas vent of water ring vacuum pump communicates to waste gas recovery system, the leakage fluid dram of gas-liquid separation jar with the delivery port of high-efficient knockout tower with the water seal tank intercommunication, the overflow mouth of water seal tank with the jar intercommunication is collected to the decarbonization water.
The invention mainly solves the safety problem and reduces the ignition hidden trouble of the carbon disulfide from the source; secondly, as an effective environmental protection treatment measure, the carbon disulfide is removed from the wastewater from the source to realize the treatment target; and the third project has great economic benefit, and the separated carbon disulfide and clean water can be recycled to a production system.
Further, the top and the overflow water seal tank intercommunication of carbonaceous water collection tank, the bottom of carbonaceous water collection tank with the feed liquor spray set of high-efficient knockout tower passes through feed liquor pipe intercommunication be equipped with carbonaceous water delivery pump and heat exchanger on the feed liquor pipe.
The beneficial effect of adopting the further scheme is that the heat exchanger exchanges heat for the waste water containing carbon disulfide, and the temperature of the waste water containing carbon disulfide is controlled to be 10-30 ℃. The lower the temperature, the lower the CS 2 The higher the solubility in water, the smaller the Henry coefficient, i.e. CS 2 Less volatile from water, so when the temperature of the carbon disulfide-containing wastewater is lower, the carbon disulfide-containing wastewater is heated by the heat exchanger to improveTemperature, thereby increasing CS 2 Separation efficiency and effect.
The spraying density of the carbon disulfide-containing wastewater entering the high-efficiency separation tower is 1-10m 3 /(m 2 H). If the spraying density is too high, CS 2 The separation effect is poor; if the spray density is too low, the inner diameter of the tower is too large, which causes material cost waste.
Furthermore, a water outlet of the water ring vacuum pump is communicated with the carbon-containing water collecting tank, an air outlet is formed in the top of the carbon-containing water collecting tank, and the air outlet of the carbon-containing water collecting tank is communicated to the waste gas recovery system.
Adopt above-mentioned further scheme's beneficial effect be that carbon disulfide gas is advanced into the gas-liquid separation jar, and carbon disulfide gas passes through the water ring vacuum pump and discharges into waste gas recovery system after will smuggleing secretly a small amount of liquid water separation. The working liquid of the water ring vacuum pump is clean water, the clean water is discharged after absorbing part of carbon disulfide gas in the pump body, and the discharged water is introduced into a carbon-containing water collecting tank.
Further, the bottom of the decarbonization water collecting tank is communicated with an inlet of a decarbonization water discharge pump.
The technical scheme has the beneficial effect that the decarbonization water discharge pump can discharge or recycle the treated decarbonization water collected in the decarbonization water collection tank.
Another technical solution of the present invention for solving the above technical problems is as follows: a method for purifying waste water containing carbon disulfide is realized by using the system for purifying the waste water containing carbon disulfide, and comprises the following steps:
s1, uniformly collecting carbon disulfide-containing wastewater to a carbon-containing water collecting tank;
s2, conveying the carbon disulfide-containing wastewater in the carbon-containing water collecting tank to an efficient separation tower for treatment, and vaporizing and separating the carbon disulfide therein;
and (3) discharging the separated carbon disulfide gas into a waste gas recovery system through a water ring vacuum pump, wherein the water for removing the carbon disulfide firstly enters a water seal tank 5, and then overflows into a decarbonized water collecting tank for recycling or discharging.
Recycling the separated carbon disulfide gas to a waste gas recycling system; the clean water without carbon disulfide is collected and mainly used as carbon disulfide pressure delivery water, and then used as a water replenishing part of a cooling system to replace fresh water, namely used as water replenishing of a water cooling tower, and the water cooling tower is used for providing circulating cooling water for a heat exchanger used for viscose fiber production.
The method has the advantages of simple process, high efficiency of separating the carbon disulfide-containing wastewater, low construction cost and operation cost, and is particularly suitable for large-scale industrial production. Not only can eliminate potential safety hazard and control environmental pollution, but also can recover carbon disulfide in the wastewater, thereby generating certain economic benefit.
Drawings
FIG. 1 is a process flow diagram of a system for purifying carbon disulfide-containing wastewater in accordance with the present invention;
FIG. 2 is a schematic structural view of a high efficiency separation column of the present invention;
FIG. 3 is a top cross-sectional view of a high efficiency separation column of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a carbonaceous water collection tank; 2. a heat exchanger; 3. a high efficiency separation column; 4. a gas-liquid separation tank; 5. sealing the tank with water; 6. a decarbonized water collecting tank; 7. a water ring vacuum pump; 8. sealing the tank with overflow water; 9. a carbonaceous water feed pump; 10. a carbohydrate removal efflux pump;
31. a tower body; 32. a liquid inlet spraying device; 33. an upper air exhaust port; 34. a lower air exhaust port; 35. a water outlet; 36. bulk filling; 37. a packing support plate; 38. a liquid baffle; 39. a water inlet; 310. a pressure detection device; 311. a liquid baffle plate frame; 312. a manhole; 313. a sight glass; 314. lifting lugs; 315. a support leg; 316. spare port (with blind plate).
Detailed Description
The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
Example 1
As shown in fig. 2 and 3, this embodiment relates to a high-efficient knockout tower, including tower body 31, feed liquor spray set 32 and packing layer, the packing layer set up in the tower body 31, feed liquor spray set 32 set up in top in the tower body 31, and be located the top of packing layer the top of tower body 31 is equipped with extraction opening 33, the lateral wall lower part of tower body 31 is equipped with down extraction opening 34, the bottom of tower body 31 is equipped with delivery port 35.
Compared with the traditional vacuum degassing device, the efficient separation tower 3 is internally provided with the filler layer, so that the retention time of liquid in the device is prolonged, the surface area of a liquid phase is increased, the distribution condition of the liquid in time and space is optimized, and the separation efficiency and the separation effect are obviously improved.
The high-efficiency separation tower 3 can realize the high-efficiency separation of carbon disulfide and water, the wastewater containing carbon disulfide is uniformly sprayed on the upper surface of the packing layer through the liquid inlet spraying device 32, the wastewater containing carbon disulfide flows through the packing layer along the surface of the bulk packing 36 under the action of gravity, a larger gas-liquid contact area is obtained in the flowing process, the carbon disulfide in the wastewater is converted into gas under the negative pressure condition to be removed, and the gas is extracted by the water ring vacuum pump 7 through the upper extraction opening 33 and the lower extraction opening 34.
Preferably, the water outlet 35 is disposed at the lowest end of the high-efficiency separation tower 3, so that the water for removing carbon disulfide can be discharged through the water outlet 35.
Preferably, the packing layer includes a bulk packing 36 and a packing support plate 37, the packing support plate 37 includes a grid plate and a wire mesh, the grid plate is fixedly connected to the inner side wall of the tower body 31, the wire mesh is laid on the grid plate, the bulk packing 36 is stacked on the wire mesh, and the lower suction opening 34 is disposed at a position on the side wall of the tower body 31 corresponding to the upper side of the packing support plate 37.
The material of the grid plate is alloy or plastic, and the metal wire mesh is laid above the grid plate. The filler support plate 37 plays a role in supporting the filler layer, ensuring smooth circulation of treated water, and preventing the loose-packed filler 36 from falling. The grid plates and wire mesh are specifically designed by the plant personnel according to the size and weight of the bulk charge 36. The thickness of the filler layer is preferably 1000mm to 5000mm.
Preferably, a liquid baffle plate 38 is respectively arranged on the upper side of the lower pumping hole 34 and one side of the upper pumping hole 33 close to the liquid inlet spraying device 32. The liquid baffle 38 can be connected to the inner wall of the high-efficiency separation tower 3 by welding or bolting, and partially shields an area opposite to the upper suction opening 33 and the lower suction opening 34, so as to prevent the mist droplets sprayed by the spraying device from being sucked into the suction opening. Specifically, the liquid baffle 38 is preferably through liquid baffle plate frame 311 fixed connection on high-efficient knockout tower 3 inner wall, wherein, the liquid baffle 38 of last extraction opening 33 department is taken out in order to prevent that feed liquor spray set 32 spun waste water, consequently, it can set up the one side that faces feed liquor spray set 32 at last extraction opening 33, and relative other both sides can be with high-efficient knockout tower 3 inner wall separation and be uncovered form, be used for the suction of carbon disulfide waste gas, corresponding liquid baffle plate frame 311 can be respectively through bolted connection both ends about it, and with 3 inner walls welding of high-efficient knockout tower of corresponding position or through bolted connection. The liquid baffle 38 at the lower pumping port 34 is used to prevent the waste water passing through the packing layer from directly falling into the lower pumping port 34, and it needs to shield the upper side, so it is disposed obliquely, the upper and lower ends are welded or bolted to the inner wall of the high-efficiency separation tower 3 and the packing support plate 37 through the liquid baffle frame 311, and the lower part is used for waste gas to enter.
Preferably, the liquid inlet spraying device 32 is a nozzle communicated with a liquid inlet pipe, a water inlet 39 is arranged at the top of the tower body 31, and one end of the liquid inlet pipe penetrates through the water inlet 39 and extends to the upper part of the packing layer and is communicated with the nozzle. The spray heads are particularly large-flow and difficult-to-block spray heads such as vortex nozzles and SMP spray heads.
Preferably, the tower body 31 is further provided with a pressure detection device 310, and when in use, the high-efficiency separation tower 3 is provided with a negative pressure condition by the water ring vacuum pump 7, so that the pressure detection device 310 can be associated with an automatic valve LV02 at the water ring vacuum pump 7, and the DCS system controls the pressure in the high-efficiency separation tower 3 to be in a proper range by automatically adjusting the opening degree of the automatic valve LV 02.
In addition to the above components, the tower body 31 of the high-efficiency separation tower 3 is provided with auxiliary structures such as a manhole 312, a sight glass 313 for observing the internal situation, a lifting lug 314 for lifting, a supporting leg 315 for supporting, and a spare port 316 with a blind plate.
Example 2
As shown in fig. 1, this embodiment relates to a system for purifying carbon disulfide wastewater, including carbon-containing water collection tank 1, gas-liquid separation jar 4, water seal jar 5, water ring vacuum pump 7, decarbonization water collection tank 6 and high-efficient separation tower 3, the bottom of carbon-containing water collection tank 1 with the feed liquor spray set 32 of high-efficient separation tower 3 communicates, the last extraction opening 33 and the lower extraction opening 34 of high-efficient separation tower 3 all with the air inlet intercommunication of gas-liquid separation jar 4, the gas vent of gas-liquid separation jar 4 with the air inlet intercommunication of water ring vacuum pump 7, the gas vent of water ring vacuum pump 7 communicates to waste gas recovery system, the leakage fluid dram of gas-liquid separation jar 4 with the delivery port of high-efficient separation tower 3 with water seal jar 5 communicates, the overflow mouth of water seal jar 5 with decarbonization water collection tank 6 communicates.
The invention mainly solves the safety problem and reduces the ignition hidden trouble of the carbon disulfide from the source; secondly, as an effective environmental protection treatment measure, the carbon disulfide is removed from the wastewater from the source to realize the treatment target; and the third project has great economic benefit, and the separated carbon disulfide and clean water can be recycled to a production system.
Wherein, the carbon disulfide-containing wastewater is generated in the viscose fiber production process, and comprises carbon disulfide condensation recovery workshop section drainage of a spinning workshop, power plant adsorption workshop section pressure carbon water, tank area pressure carbon water, stock solution workshop deaeration water ring pump drainage and the like, and the carbon disulfide-containing wastewater is intensively guided into a carbon-containing water collecting tank 1 through a pipeline.
The gas-liquid separation tank 4 is used for separating liquid water carried in carbon disulfide gas, the water for removing carbon disulfide enters the water seal tank 5, then overflows (through an overflow pipe) to enter the decarbonized water collection tank 6, a small amount of liquid water separated by the gas-liquid separation tank 4 is also introduced into the water seal tank 5, the water seal tank 5 is used for carrying out water seal on a downpipe of the high-efficiency separation tower 3 and a downpipe of the gas-liquid separation tank 4, and air is prevented from being sucked from the tail end of the downpipe in the operation process of the device. Clean water can be introduced into the top of the water-sealed tank 5, and an emptying pipe with a valve can be arranged at the bottom of the water-sealed tank. The top of the decarbonization water collection tank 6 can also be provided with an overflow pipe, and the bottom can also be provided with an emptying pipe with a valve.
Preferably, the type of the carbon-containing water collecting tank 1 is a cone bottom tank, and a water outlet of the carbon-containing water collecting tank 1 is arranged at the bottommost end of the cone bottom. Carbon disulfide has a greater density than water, and carbon disulfide, which is undissolved under standing conditions, will separate from water and settle below the water layer. The purpose of adopting awl end jar and delivery port setting at the bottommost of awl end is, in case appear undissolved carbon disulfide in the waste water, can send high-efficient knockout tower 3 in real time to handle, avoids undissolved carbon disulfide waste water liquid layer bottom deposit in carbonaceous water collection tank 1.
Preferably, the high-efficiency separation tower 3 is provided with a negative pressure condition by a water ring vacuum pump 7, and the air exhaust path is as follows: a water ring vacuum pump 7, a gas-liquid separation tank 4 and a high-efficiency separation tower 3. The high efficiency separation column 3 operates at negative pressure ranging from 3kPa absolute to 10kPa absolute. Compared with other types of vacuum pumps, the temperature change in the process of compressing gas in the pump cavity of the water ring vacuum pump 7 is small, and the gas can be regarded as isothermal compression, so that inflammable and explosive carbon disulfide gas can be pumped out. Therefore, the water ring vacuum pump 7 is selected to provide a negative pressure condition for the high-efficiency separation tower 3. In addition, the water ring vacuum pump 7 may be provided in two in parallel, one for use.
Preferably, the top and the 8 intercommunications of overflow water seal tank of carbonaceous water collection tank 1, the bottom of carbonaceous water collection tank 1 with the feed liquor spray set 32 of high-efficient knockout tower 3 passes through the feed liquor pipe intercommunication be equipped with carbonaceous water charge-pump 9 and heat exchanger 2 on the feed liquor pipe.
The heat exchanger 2 exchanges heat with the carbon disulfide-containing wastewater, and the temperature of the carbon disulfide-containing wastewater can be controlled to be 10-30 ℃. The lower the temperature, the CS 2 The higher the solubility in water, the smaller the Henry coefficient, i.e. CS 2 Less volatile from water, and thus when the temperature of the carbon disulfide-containing wastewater is low, the carbon disulfide-containing wastewater is heated by the heat exchanger 2 to raise the temperature of the carbon disulfide-containing wastewater, thereby raising the temperature of the CS 2 Separation efficiency and effect.
2 lower extremes of heat exchanger still communicates through the top of pipeline with carbonaceous water collection tank 1, and the effect of this pipeline is that, when heat exchanger 2 cleared up or overhauld, with in the heat exchanger 2 and the position that links to each other with heat exchanger 2 discharge to carbonaceous water collection tank 1 with the carbon disulfide waste water that contains in the transport carbon disulfide waste water pipeline that the position is higher than heat exchanger 2 to convenient the maintenance avoids waste water to discharge at will. The heat source of the heat exchanger 2 is hot water generated by heat exchange in the viscose fiber production process, and the hot water enters from the hot water inlet of the heat exchanger 2 and flows out from the hot water outlet of the heat exchanger 2.
The effect of overflow water seal tank 8 prevents on the one hand that the water that contains the carbon water collection tank 1 the inside is too much, on the other hand prevents that the jar contains during carbon disulfide gas distributes sewage treatment system through the overflow pipe. The carbon-containing water collecting tank 1 is provided with a liquid level detection alarm system, so that the waste water conveying flow can be timely adjusted under normal conditions, and the liquid level in the tank is prevented from being too high. The provision of the overflow water-sealed tank 8 is therefore mainly a safety measure against leakage of toxic gases. The wastewater entering the overflow water seal tank 8 is discharged into a company sewage treatment system through a pipeline.
The spraying density of the carbon disulfide-containing wastewater entering the high-efficiency separation tower 3 is 1-10m 3 /(m 2 H). If the spraying density is too high, CS 2 The separation effect is poor; if the spray density is too low, the tower internal diameter is too large, resulting in material cost waste.
Preferably, a water outlet of the water ring vacuum pump 7 is communicated with the carbon-containing water collection tank 1, a gas outlet is formed in the top of the carbon-containing water collection tank 1, and the gas outlet of the carbon-containing water collection tank 1 is communicated to the waste gas recovery system.
The carbon disulfide gas firstly enters a gas-liquid separation tank 4, and the carbon disulfide gas is discharged into a waste gas recovery system through a water ring vacuum pump 7 after a small amount of liquid water carried by the carbon disulfide gas is separated. The working liquid of the water ring vacuum pump 7 is clean water, the clean water is discharged after absorbing part of carbon disulfide gas in the pump body, and the discharged water is introduced into the carbon-containing water collecting tank 1. According to the working principle of the water ring vacuum pump 7, clean water introduced during the working process is mixed with carbon disulfide gas sucked by the clean water to form new waste water, and the waste water is small in amount, so that the waste water is introduced into the carbon-containing water collecting tank 1 and then treated by the high-efficiency separation tower 3, and the method is a simple and effective treatment method.
Preferably, the bottom of the decarbonization water collection tank 6 is communicated with an inlet of a decarbonization water discharge pump 10. The decarbonization water discharge pump 10 can discharge or recycle the treated decarbonization water collected in the decarbonization water collection tank 6
As shown in fig. 1, the communication between the components is realized by using pipes, and the dotted lines represent electric signals. The system for purifying the carbon disulfide-containing wastewater of the embodiment can realize comprehensive regulation and control by a DCS control system and by matching with the actual operation of field workers. The valves in the system can be butterfly valves, ball valves, check valves, automatic valves and the like, and can be used universally, wherein the valves arranged on the pipelines between the exhaust port of the gas-liquid separation tank 4 and the air inlet port of the water ring vacuum pump 7 are preferably check valves.
A flow meter and an automatic valve LV01 are arranged on a pipeline between the carbonaceous water feeding pump 9 and the heat exchanger 2, the flow meter and the automatic valve LV01 are interlocked and are electrically connected through a flow indication control alarm system (FICA), and the flow of the flow meter and the opening degree of the automatic valve LV01 can be set.
The pressure detection device 310 on the high-efficiency separation tower 3 is a pressure indication control alarm system (PICA), which is electrically connected with an automatic valve LV02 at the water ring vacuum pump 7, the pressure value of the pressure indication control alarm system (PICA) can be set (the input range is 3kPa-10 kPa) to set the pressure in the high-efficiency separation tower 3, and the pressure is maintained at the set value through the opening degree of the automatic valve LV 02.
The carbonaceous water collection tank 1 is also provided with a liquid level indication control interlocking alarm system (LICSA), the LICSA is electrically connected with the carbonaceous water feeding pump 9 to realize interlocking, the carbonaceous water feeding pump 9 automatically stops when the liquid level in the carbonaceous water collection tank 1 is lower than 20%, and an alarm is given when the liquid level is higher than 90%.
Temperature indicating systems (TI) are arranged at the carbon-containing water collecting tank 1 and the water seal tank 5, wherein the temperature indicating system (TI) of the water seal tank 5 is a single field indicating instrument, and the temperature indicating system (TI), the flow indicating control alarm system (FICA), the pressure indicating control alarm system (PICA) and the liquid level indicating control interlocking alarm system (LICSA) of the carbon-containing water collecting tank 1 are DCS control chamber installation instruments.
Example 3
The embodiment relates to a method for purifying waste water containing carbon disulfide, which is realized by using the system for purifying the waste water containing carbon disulfide and comprises the following steps:
s1, uniformly collecting carbon disulfide-containing wastewater to a carbon-containing water collecting tank 1;
s2, conveying the carbon disulfide-containing wastewater in the carbon-containing water collecting tank 1 to an efficient separation tower 3 for treatment, and vaporizing and separating carbon disulfide therein;
and the carbon disulfide gas separated in the step S3 is discharged into a waste gas recovery system through a water ring vacuum pump 7, and the water for removing the carbon disulfide firstly enters a water seal tank 5 and then overflows into a decarbonized water collecting tank 6 for recycling or discharging.
Recycling the separated carbon disulfide gas to a waste gas recycling system; the clean water without carbon disulfide is collected and mainly used as carbon disulfide pressure delivery water, and then used as a water replenishing part of a cooling system to replace fresh water, namely used as water replenishing of a water cooling tower, and the water cooling tower is used for providing circulating cooling water for a heat exchanger 2 used for viscose fiber production.
The method has the advantages of simple process, high efficiency of separating the carbon disulfide-containing wastewater, low construction cost and operation cost, and is particularly suitable for large-scale industrial production. Not only can eliminate potential safety hazard and control environmental pollution, but also can recover carbon disulfide in the wastewater, thereby generating certain economic benefit.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "middle", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The utility model provides a high-efficient knockout tower, its characterized in that, includes tower body (31), feed liquor spray set (32) and packing layer, the packing layer set up in tower body (31), feed liquor spray set (32) set up in top in tower body (31), and be located the top of packing layer the top of tower body (31) is equipped with extraction opening (33), the lateral wall lower part of tower body (31) is equipped with down extraction opening (34), the bottom of tower body (31) is equipped with delivery port (35).
2. The high-efficiency separation tower according to claim 1, wherein the packing layer comprises a bulk packing (36) and a packing support plate (37), the packing support plate (37) comprises a grid plate and a wire mesh, the grid plate is fixedly connected with the inner side wall of the tower body (31), the wire mesh is laid on the grid plate, the bulk packing (36) is stacked on the wire mesh, and the lower suction opening (34) is arranged at the position of the side wall of the tower body (31) corresponding to the upper side of the packing support plate (37).
3. The high-efficiency separation tower according to claim 1, wherein a liquid baffle plate (38) is respectively arranged on the upper side of the lower suction opening (34) and one side of the upper suction opening (33) close to the liquid inlet spray device (32).
4. The high-efficiency separation tower according to claim 1, wherein the liquid inlet spraying device (32) is a nozzle communicated with a liquid inlet pipe, a water inlet (39) is arranged at the top of the tower body (31), and one end of the liquid inlet pipe penetrates through the water inlet (39) to extend to the upper part of the packing layer and is communicated with the nozzle.
5. The high-efficiency separation tower according to any one of claims 1 to 4, wherein the tower body (31) is further provided with a pressure detection device (310).
6. A system for purifying carbon disulfide-containing wastewater, which is characterized by comprising a carbon-containing water collecting tank (1), a gas-liquid separating tank (4), a water-sealed tank (5), a water ring vacuum pump (7), a decarbonized water collecting tank (6) and the high-efficiency separating tower (3) as claimed in any one of claims 1 to 5, wherein the bottom of the carbon-containing water collecting tank (1) is communicated with a liquid inlet spraying device (32) of the high-efficiency separating tower (3), an upper pumping port (33) and a lower pumping port (34) of the high-efficiency separating tower (3) are both communicated with a gas inlet of the gas-liquid separating tank (4), a gas outlet of the gas-liquid separating tank (4) is communicated with a gas inlet of the water ring vacuum pump (7), a gas outlet of the water ring vacuum pump (7) is communicated with a waste gas recovery system, a liquid outlet of the gas-liquid separating tank (4) and a water outlet of the high-efficiency separating tower (3) are communicated with the water-sealed tank (5), and an overflow port of the water-sealed tank (5) is communicated with the decarbonized water collecting tank (6).
7. The system for purifying the wastewater containing the carbon disulfide as claimed in claim 6, wherein the top of the carbonaceous water collection tank (1) is communicated with the overflow water seal tank (8), the bottom of the carbonaceous water collection tank (1) is communicated with the liquid inlet spraying device (32) of the high-efficiency separation tower (3) through a liquid inlet pipe, and a carbonaceous water feeding pump (9) and a heat exchanger (2) are arranged on the liquid inlet pipe.
8. The system for purifying wastewater containing carbon disulfide as claimed in claim 6, wherein the water outlet of the water ring vacuum pump (7) is communicated with the carbon-containing water collection tank (1), the top of the carbon-containing water collection tank (1) is provided with an air outlet, and the air outlet of the carbon-containing water collection tank (1) is communicated to the waste gas recovery system.
9. The system for purifying waste water containing carbon disulfide as claimed in claim 6, wherein the bottom of the decarbonized water collection tank (6) is communicated with an inlet of an external decarbonized water discharge pump (10).
10. A method for purifying waste water containing carbon disulfide, which is implemented by using the system for purifying waste water containing carbon disulfide according to any one of claims 6 to 9, comprising the steps of:
s1, uniformly collecting carbon disulfide-containing wastewater to a carbon-containing water collecting tank (1);
s2, conveying the carbon disulfide-containing wastewater in the carbon-containing water collecting tank (1) to an efficient separation tower (3) for treatment, and vaporizing and separating carbon disulfide in the carbon disulfide-containing wastewater;
and (3) discharging the carbon disulfide gas separated out in the S3 into a waste gas recovery system through a water ring vacuum pump (7), wherein the water for removing the carbon disulfide firstly enters a water sealing tank (5), and then overflows into a decarbonized water collecting tank (6) for recycling or discharging.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4304143A1 (en) * | 1993-02-11 | 1994-08-18 | Ebner Anlagen & Apparate | Process for purifying waste air, in particular from cellulose staple fibre works, by recovery of CS2 and H2S |
| CN1919732A (en) * | 2006-09-18 | 2007-02-28 | 孔庆然 | Primary separation tower for carbon disulphide preparation process |
| CN201002976Y (en) * | 2006-12-05 | 2008-01-09 | 青岛天人环境工程有限公司 | Device for reclaiming ammonia from high-content ammonia nitrogen waste water |
| CN103936220A (en) * | 2014-05-06 | 2014-07-23 | 田晓良 | Zero discharge treatment process of saline sewage produced by refining |
| CN105600857A (en) * | 2015-10-22 | 2016-05-25 | 唐山三友集团兴达化纤有限公司 | Degassing treatment technology of alkaline wastewater in viscose fiber production |
| CN206229190U (en) * | 2016-11-30 | 2017-06-09 | 成都丽雅纤维股份有限公司 | A kind of process system for being enriched with carbon disulfide and hydrogen sulfide in viscose rayon waste gas |
| CN206538221U (en) * | 2017-03-01 | 2017-10-03 | 新乡市双诚环保设备有限公司 | A kind of negative pressure resolver for sewage disposal |
| CN207313355U (en) * | 2017-10-17 | 2018-05-04 | 童家亮 | A kind of high ammonia-nitrogen wastewater processing and resource recovery equipment |
| CN108911002A (en) * | 2018-08-27 | 2018-11-30 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Vacuum decarburization system |
| CN208916855U (en) * | 2018-10-11 | 2019-05-31 | 江苏沃德凯环保科技有限公司 | A kind of ammonia-containing water processing recycling ammonium sulfate crystallization device |
| CN112142150A (en) * | 2020-08-31 | 2020-12-29 | 同济大学 | Device and method for synchronously recovering nitrogen and phosphorus in biogas slurry with high efficiency and low consumption |
| CN213012241U (en) * | 2020-06-23 | 2021-04-20 | 四川省金路树脂有限公司 | Chloroethylene recovery system |
| CN113842751A (en) * | 2021-09-30 | 2021-12-28 | 山西鑫途化工有限公司 | Device and method for treating waste gas containing carbon disulfide |
-
2022
- 2022-06-24 CN CN202210730545.2A patent/CN115159610A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4304143A1 (en) * | 1993-02-11 | 1994-08-18 | Ebner Anlagen & Apparate | Process for purifying waste air, in particular from cellulose staple fibre works, by recovery of CS2 and H2S |
| CN1919732A (en) * | 2006-09-18 | 2007-02-28 | 孔庆然 | Primary separation tower for carbon disulphide preparation process |
| CN201002976Y (en) * | 2006-12-05 | 2008-01-09 | 青岛天人环境工程有限公司 | Device for reclaiming ammonia from high-content ammonia nitrogen waste water |
| CN103936220A (en) * | 2014-05-06 | 2014-07-23 | 田晓良 | Zero discharge treatment process of saline sewage produced by refining |
| CN105600857A (en) * | 2015-10-22 | 2016-05-25 | 唐山三友集团兴达化纤有限公司 | Degassing treatment technology of alkaline wastewater in viscose fiber production |
| CN206229190U (en) * | 2016-11-30 | 2017-06-09 | 成都丽雅纤维股份有限公司 | A kind of process system for being enriched with carbon disulfide and hydrogen sulfide in viscose rayon waste gas |
| CN206538221U (en) * | 2017-03-01 | 2017-10-03 | 新乡市双诚环保设备有限公司 | A kind of negative pressure resolver for sewage disposal |
| CN207313355U (en) * | 2017-10-17 | 2018-05-04 | 童家亮 | A kind of high ammonia-nitrogen wastewater processing and resource recovery equipment |
| CN108911002A (en) * | 2018-08-27 | 2018-11-30 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Vacuum decarburization system |
| CN208916855U (en) * | 2018-10-11 | 2019-05-31 | 江苏沃德凯环保科技有限公司 | A kind of ammonia-containing water processing recycling ammonium sulfate crystallization device |
| CN213012241U (en) * | 2020-06-23 | 2021-04-20 | 四川省金路树脂有限公司 | Chloroethylene recovery system |
| CN112142150A (en) * | 2020-08-31 | 2020-12-29 | 同济大学 | Device and method for synchronously recovering nitrogen and phosphorus in biogas slurry with high efficiency and low consumption |
| CN113842751A (en) * | 2021-09-30 | 2021-12-28 | 山西鑫途化工有限公司 | Device and method for treating waste gas containing carbon disulfide |
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