CN104276697B - The comprehensive processing technique of calcic suspended solid, chloride, salt bearing liquid wastes and treatment unit - Google Patents
The comprehensive processing technique of calcic suspended solid, chloride, salt bearing liquid wastes and treatment unit Download PDFInfo
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- CN104276697B CN104276697B CN201410551788.5A CN201410551788A CN104276697B CN 104276697 B CN104276697 B CN 104276697B CN 201410551788 A CN201410551788 A CN 201410551788A CN 104276697 B CN104276697 B CN 104276697B
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/04—Hypochlorous acid
- C01B11/06—Hypochlorites
- C01B11/062—Hypochlorites of alkali metals
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
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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
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
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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
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The present invention relates to a kind of calcic suspended solid, the comprehensive processing technique of chloride, salt bearing liquid wastes and Integrated Processing Unit.It comprises the waste liquid from chemical production device through sedimentation solid-liquid separation, waste liquid clear liquid still containing some calcic suspended solid is sent in tube mixer, simultaneously in tube mixer, send into hydrochloric acid, after waste liquid clear liquid and hydrochloric acid react in tube mixer through gas-liquid separator separates by the ClO in waste liquid clear liquid
-after alkali liquor absorption, clorox is generated with the chlorine that hydrochloric acid reaction produces, chlorination reaction accurate adjustment tank is sent into after all the other liquid phase mixed solution part heat exchange cooling, in chlorination reaction accurate adjustment tank, send into hydrochloric acid makes it again fully react simultaneously, reacted system is recycled into down-hole and adopts halogen, for the production of low caldo after heat exchange cooling also dechlorination.This invented technology can not only realize the zero release of calcic, chloride, salt bearing liquid wastes, and can realize recovery, the treatment of wastes with processes of wastes against one another, the minimizing of effective constituent or reduce pollution factor.
Description
Technical field
The invention belongs to field of waste water treatment, be specifically related to a kind of calcic suspended solid, the comprehensive processing technique of chloride, salt bearing liquid wastes and treatment unit.
Background technology
The discharging of waste liquid amount of existing chemical production device every day is huge, add other with water and domestic water, produce a large amount of sewage discharges every day, waste liquid qualified discharge has become restriction Chemical Manufacture and environmental protection and has followingly produced expansible bottleneck.Waste liquid reused after rationally process thus realizes waste liquid advanced treatment and comprehensive utilization, fundamentally can solve the problem of discharging of waste liquid.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of calcic suspended solid, the comprehensive processing technique of chloride, salt bearing liquid wastes and treatment unit.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
Calcic suspended solid, chloride, the comprehensive processing technique of salt bearing liquid wastes: the waste liquid from chemical production device is sent in waste collection tank, then pump into settling vessel sedimentation through waste liquid charge pump and carry out solid-liquid separation, until most of calcic suspended solid is settlement separate complete after, send being separated the magma obtained into magma tank, then pumping into magma through magma pump utilizes device to carry out reuse, waste liquid clear liquid still containing a small amount of calcic suspended solid is sent into Clear liquid tank, then deliver in tube mixer through clear liquid pump, the hydrochloric acid stored in hydrochloric acid tank is sent into hydrochloric acid through sour pump in tube mixer simultaneously, after waste liquid clear liquid and hydrochloric acid react in tube mixer through gas-liquid separator separates by the ClO in waste liquid clear liquid
-after the alkali liquor absorption in chlorine absorption unit, clorox is generated with the chlorine feeding chlorine absorption unit that hydrochloric acid reaction produces, the clorox generated stores for future use, all the other liquid phase mixed solution parts send into chlorination reaction accurate adjustment tank after interchanger heat exchange cooling, in chlorination reaction accurate adjustment tank, send into liquid phase that hydrochloric acid makes fully not react completely simultaneously mix liquid and hydrochloric acid fully reacts again, the chlorine that reaction generates generates clorox after the alkali liquor absorption in chlorine absorption unit, reacted system is recycled into down-hole and adopts halogen after heat exchange cooling also dechlorination, for the production of low caldo.
By such scheme, described settlement separately the calcic suspended solid of 70-80wt% carried out separations recycle for waste liquid charge pump being pumped into sedimentation 2-3h in inclined-plane subsider.
By such scheme, the pH value controlling reacted liquid-phase mixing liquid part in described tube mixer when waste liquid clear liquid and hydrochloric acid reaction is 4-5; The liquid phase fully do not reacted completely in described chlorination reaction accurate adjustment tank controls system ORP value in chlorination reaction accurate adjustment tank when mixing liquid and hydrochloric acid reaction be 400-500mV.
By such scheme, the concentration of described hydrochloric acid is 29-31wt%, is 27-32wt% for absorbing the concentration of the alkali lye of chlorine in described chlorine absorption unit.
By such scheme, described dechlorination adopts the dechlorination of vacuum dechlorination method, and the content removing liquid free chlorine gas after dechlorination is 5-20ppm.
Calcic suspended solid, chloride, the Integrated Processing Unit of salt bearing liquid wastes, it is characterized in that: it comprises waste collection tank, waste liquid charge pump, settling vessel, magma tank, magma pump, Clear liquid tank, clear liquid pump, tube mixer, gas-liquid separator, heat-exchanger rig, chlorination reaction accurate adjustment tank, chlorine absorption unit, hydrochloric acid tank and sour pump, described waste collection tank is connected by pipeline with the pump intake of waste liquid charge pump, the described pump discharge of waste liquid charge pump is connected by pipeline with the entrance of settling vessel, described settling vessel bottom is provided with magma outlet, top is provided with waste liquid purified liquor outlet, described magma outlet is connected with magma tank, described magma tank is connected with the pump intake of magma pump, described magma pumps into magma through magma pump and utilizes device reuse, described waste liquid purified liquor outlet is connected by pipeline with Clear liquid tank, described Clear liquid tank is connected by pipeline with the pump intake of clear liquid pump, described tube mixer is provided with waste liquid clear liquid entrance and hydrochloric acid entrance, described waste liquid clear liquid entrance is connected with the pump discharge of clear liquid pump, described gas-liquid separator is arranged on the end of tube mixer, the gaseous phase outlet of described gas-liquid separator is connected with chlorine absorption unit, described hydrochloric acid tank is connected with the pump intake of sour pump, the pipeline that described and sour pump pump discharge is connected is divided into two branch roads, one tunnel is used for being connected with the hydrochloric acid entrance of tube mixer, another road is used for being connected with the hydrochloric acid entrance of chlorination reaction accurate adjustment tank, described chlorination reaction accurate adjustment tank top is provided with two entrances, be respectively hydrochloric acid entrance and the liquid phase that fully do not react completely mixes liquid entrance, described liquid-phase mixing liquid entrance is connected with the outlet of tube mixer, described chlorination reaction accurate adjustment pot bottom is provided with reactant outlet, describedly export with reactant the pipeline be connected and be provided with heat-exchanger rig, the pipeline that described liquid-phase mixing liquid entrance is connected with the outlet of tube mixer is provided with heat-exchanger rig.
By such scheme, described tube mixer exports the pipeline be connected with the liquid-phase mixing liquid entrance of chlorination reaction accurate adjustment tank and is provided with online pH monitoring meter, the pipeline that described sour pump pump discharge is connected with the hydrochloric acid entrance of tube mixer is provided with first flow adjusting control valve, the pipeline that described clear liquid pump pump discharge is connected with tube mixer waste liquid clear liquid entrance is provided with the second flow regulating and controlling valve, described DCS Controlling System is monitored to count with online pH respectively and is connected, receive its detection signal, and be connected with the second flow regulating and controlling valve with first flow adjusting control valve, the pH value of waste liquid clear liquid and hydrochloric acid reacted liquid-phase mixing liquid in tube mixer is regulated and controled according to the aperture of the pH value of on-line monitoring corresponding control first flow adjusting control valve and the second flow regulating and controlling valve.
By such scheme, be provided with online ORP in described chlorination reaction accurate adjustment tank and monitor meter, the pipeline that described sour pump pump discharge is connected with the hydrochloric acid entrance of chlorination reaction accurate adjustment tank is provided with the 3rd flow regulating and controlling valve, described DCS Controlling System and online ORP monitor to count and are connected, receive its detection signal, and be connected with the 3rd flow regulating and controlling valve, the ORP value of system in chlorination reaction regulating tank is regulated and controled according to the aperture of the corresponding control of on-line pH value the 3rd flow regulating and controlling valve.
By such scheme, described settling vessel is inclined-plane subsider.
By such scheme, described heat-exchanger rig is take recirculated water as the titanium tube heat exchanger of low-temperature receiver.
Beneficial effect of the present invention:
1. present invention process technology has the zero release that can not only realize calcic, chloride, salt bearing liquid wastes, and can realize the recovery of effective constituent, the treatment of wastes with processes of wastes against one another, minimizing or reduce the effect of the comprehensive utilization of resources such as pollution factor.
2. only most of calcic suspended solid is removed through settlement treatment in process for treating waste liquor provided by the invention, and in waste liquid clear liquid after settling remaining have small part containing Calcium compounds, greatly can accelerate the settling time on the one hand, improve settling efficiency, the more important thing is that small part calcium remaining in waste liquid clear liquid can change into calcium chloride in subsequent reactions in addition, and finally in dechlorination clear liquid, form a small amount of Ca
2+, so can to react generation calcium sulfate precipitation with the sulfate radical of down-hole when it is back to production bittern, be of value to the low caldo of extraction.
3. the present invention reacts the setting sent into chlorination reaction accurate adjustment tank again and carry out reacting by first tube mixer, corrodibility and the fouling tendency of dechlorination clear liquid can be reduced further, make dechlorination clear liquid meet re-injection water quality requirement, greatly reduce the failure rate of re-injection pipeline and equipment.
4. the present invention uses tube mixer to react, can realize hydrochloric acid and waste liquid clear liquid two kinds of reaction mediums in this mixing tank rapidly fully mixing react, reaction efficiency is high, overcomes current equipment mixed effect poor, and reacting in stranded equipment at residual night, and the problem that easily fouling etc. are not enough.The Flow-rate adjustment of different components can be realized by the online pH monitor on this tube mixer in conjunction with the setting of flow regulating and controlling valve and reaction end accurately controls simultaneously.
5. the content that the present invention precisely can control hypochlorite in the liquid-phase mixing liquid after tube mixer by the preparation that corresponding discharge adjusting control valve is taken into account in ORP monitoring is down to minimum, ensure making full use of of chloride waste liquid, free chlorine in liquid-phase mixing liquid can be down to minimum, for postorder process, workshop section alleviates processing pressure and cost simultaneously.
Accompanying drawing explanation
Fig. 1 is present invention process schema.In figure: 1 waste collection tank, 2 waste liquid charge pumps, 3 settling vessels, 4 magma tanks, 5 magma pumps, 6 Clear liquid tank, 7 clear liquid pumps, 8 tube mixers, 9 gas-liquid separators, 10 heat-exchanger rigs, 11 chlorination reaction accurate adjustment tanks, 12 chlorine absorption units, 13 hydrochloric acid tank, 14 sour pumps, 15 first flow adjusting control valves, 16 second flow regulating and controlling valves, 17 the 3rd flow regulating and controlling valves, 18 online pH monitoring meters, 19 online ORP monitoring meters.
Embodiment
As shown in Figure 1: calcic suspended solid, chloride, the Integrated Processing Unit of salt bearing liquid wastes, comprise waste collection tank, waste liquid charge pump, settling vessel, magma tank, magma pump, Clear liquid tank, clear liquid pump, tube mixer, gas-liquid separator, heat-exchanger rig, chlorination reaction accurate adjustment tank, chlorine absorption unit, hydrochloric acid tank and sour pump, described waste collection tank 1 is connected by pipeline with the pump intake of waste liquid charge pump 2, the pump discharge of described waste liquid charge pump is connected by pipeline with the entrance of settling vessel 3, described settling vessel bottom is provided with magma outlet, top is provided with waste liquid purified liquor outlet, described magma outlet is connected with magma tank 4, described magma tank is connected with the pump intake of magma pump 5, described magma pumps into magma through magma pump and utilizes device reuse, described waste liquid purified liquor outlet is connected by pipeline with Clear liquid tank 6, described Clear liquid tank is connected by pipeline with the pump intake of clear liquid pump 7, described tube mixer 8 is provided with waste liquid clear liquid entrance and hydrochloric acid entrance, described waste liquid clear liquid entrance is connected with the pump discharge of clear liquid pump, described gas-liquid separator 9 is arranged on the end of tube mixer, the gaseous phase outlet of described gas-liquid separator is connected 12 with chlorine absorption unit, described hydrochloric acid tank 13 is connected with the pump intake of sour pump 14, the pipeline that described and sour pump pump discharge is connected is divided into two branch roads, one tunnel is used for being connected with the hydrochloric acid entrance of tube mixer, another road is used for being connected with the hydrochloric acid entrance of chlorination reaction accurate adjustment tank, described chlorination reaction accurate adjustment tank top is provided with two entrances, be respectively hydrochloric acid entrance and the liquid phase that fully do not react completely mixes liquid entrance, described liquid-phase mixing liquid entrance is connected with the outlet of tube mixer, described chlorination reaction accurate adjustment pot bottom is provided with reactant outlet, describedly export with reactant the pipeline be connected and be provided with heat-exchanger rig, the pipeline that described liquid-phase mixing liquid entrance is connected with the liquid-phase outlet of gas-liquid separator is provided with heat-exchanger rig.
Above-mentioned tube mixer exports the pipeline be connected with the liquid-phase mixing liquid entrance of chlorination reaction accurate adjustment tank and is provided with the first online pH monitoring meter, the pipeline that described sour pump pump discharge is connected with the hydrochloric acid entrance of tube mixer is provided with first flow adjusting control valve 15, the pipeline that described clear liquid pump pump discharge is connected with tube mixer waste liquid clear liquid entrance is provided with the second flow regulating and controlling valve 16, described DCS Controlling System respectively pH online with first is monitored meter 18 and is connected, receive its detection signal, and be connected with the second flow regulating and controlling valve with first flow adjusting control valve, the pH value of waste liquid clear liquid and hydrochloric acid reacted liquid-phase mixing liquid in tube mixer is regulated and controled according to the aperture of on-line pH value corresponding control first flow adjusting control valve and the second flow regulating and controlling valve.
Be provided with online ORP in above-mentioned chlorination reaction accurate adjustment tank and monitor meter 19, the pipeline that described sour pump pump discharge is connected with the hydrochloric acid entrance of chlorination reaction accurate adjustment tank is provided with the 3rd flow regulating and controlling valve 17, described DCS Controlling System and online ORP monitor to count and are connected, receive its detection signal, and be connected with the 3rd flow regulating and controlling valve, the ORP value of system in chlorination reaction accurate adjustment tank is regulated and controled according to the aperture of online ORP monitor value corresponding control the 3rd flow regulating and controlling valve.
Above-mentioned settling vessel is inclined-plane subsider.
Above-mentioned heat-exchanger rig is take recirculated water as the titanium tube heat exchanger of low-temperature receiver.
Calcic suspended solid, chloride, the comprehensive processing technique of salt bearing liquid wastes: by the calcic solid suspension content 4wt% from chemical production device, the salt bearing liquid wastes of hypochlorite content 5wt% is sent in waste collection tank, then pump into inclined-plane subsider sedimentation through waste liquid charge pump and carry out solid-liquid separation in 2.5 hours, until the calcic suspended solid of 70-80wt% is settlement separate complete after, send being separated the magma obtained into magma tank, then pumping into magma through magma pump utilizes device to carry out reuse, waste liquid clear liquid still containing some calcic suspended solid is sent into Clear liquid tank, then deliver in tube mixer through clear liquid pump, the hydrochloric acid stored in hydrochloric acid tank is sent into hydrochloric acid through sour pump in tube mixer simultaneously, the pH value simultaneously being regulated and controled system in tube mixer when reacting by the on-line pH value corresponding control first flow adjusting control valve of online pH monitoring meter detection and the aperture of the second flow regulating and controlling valve is 4-5, waste liquid clear liquid and hydrochloric acid after reaction in tube mixer after gas-liquid separator separates by the ClO in waste liquid clear liquid
-after the alkali liquor absorption in chlorine absorption unit, clorox is generated with the chlorine feeding chlorine absorption unit that hydrochloric acid reaction produces, the clorox generated stores for future use, all the other unreacteds completely liquid-phase mixing liquid send into chlorination reaction micro-adjuster after interchanger heat exchange cooling, in chlorination reaction micro-adjuster, send into liquid phase that hydrochloric acid makes fully not react completely simultaneously mix liquid and hydrochloric acid fully reacts again, the ORP simultaneously being regulated and controled system in chlorination reaction accurate adjustment tank when reacting by the aperture of online ORP monitoring meter detection corresponding control the 3rd flow control valve is 400-500mV, the chlorine that reaction generates generates clorox after the alkali liquor absorption in chlorine absorption unit, the dechlorination clear liquid system of the free chlorine contents 40-50ppm obtained after reaction is lowered the temperature through heat exchange, be recycled into down-hole after system free chlorine content being down to 5-20ppm after the dechlorination of vacuum dechlorination method and adopt halogen, in dechlorination clear liquid system, total calcium content is 3-4%, after under its reinjection well, the content of sodium sulfate in the brine can be made to be reduced to 10-20g/L by 20-30g/L, can be used for thus producing low caldo.
Claims (10)
1. calcic suspended solid, chloride, the comprehensive processing technique of salt bearing liquid wastes, it is characterized in that: the waste liquid from chemical production device is sent in waste collection tank, then pump into settling vessel sedimentation through waste liquid charge pump and carry out solid-liquid separation, until most of calcic suspended solid is settlement separate complete after, send being separated the magma obtained into magma tank, then pumping into magma through magma pump utilizes device to carry out reuse, waste liquid clear liquid still containing a small amount of calcic suspended solid is sent into Clear liquid tank, then deliver in tube mixer through clear liquid pump, the hydrochloric acid stored in hydrochloric acid tank is sent into hydrochloric acid through sour pump in tube mixer simultaneously, after waste liquid clear liquid and hydrochloric acid react in tube mixer through gas-liquid separator separates by the ClO in waste liquid clear liquid
-after the alkali liquor absorption in chlorine absorption unit, clorox is generated with the chlorine feeding chlorine absorption unit that hydrochloric acid reaction produces, the clorox generated stores for future use, all the other liquid phase mixed solution parts send into chlorination reaction accurate adjustment tank after interchanger heat exchange cooling, in chlorination reaction accurate adjustment tank, send into liquid phase that hydrochloric acid makes fully not react completely simultaneously mix liquid and hydrochloric acid fully reacts again, the chlorine that reaction generates generates clorox after the alkali liquor absorption in chlorine absorption unit, reacted system is recycled into down-hole and adopts halogen after heat exchange cooling also dechlorination, for the production of low caldo.
2. the comprehensive processing technique of calcic suspended solid according to claim 1, chloride, salt bearing liquid wastes, is characterized in that: described settlement separately the calcic suspended solid of 70-80wt% carried out separations recycle for waste liquid charge pump being pumped into sedimentation 2-3h in inclined-plane subsider.
3. the comprehensive processing technique of calcic suspended solid according to claim 1, chloride, salt bearing liquid wastes, is characterized in that: the pH value controlling reacted liquid-phase mixing liquid part in described tube mixer when waste liquid clear liquid and hydrochloric acid reaction is 4-5; The liquid phase fully do not reacted completely in described chlorination reaction accurate adjustment tank controls system ORP value in chlorination reaction accurate adjustment tank when mixing liquid and hydrochloric acid reaction be 400-500mV.
4. the comprehensive processing technique of calcic suspended solid according to claim 1, chloride, salt bearing liquid wastes, is characterized in that: the concentration of described hydrochloric acid is 29-31wt%, is 27-32wt% for absorbing the concentration of the alkali lye of chlorine in described chlorine absorption unit.
5. the comprehensive processing technique of calcic suspended solid according to claim 1, chloride, salt bearing liquid wastes, is characterized in that: described dechlorination adopts the dechlorination of vacuum dechlorination method, and the content removing liquid free chlorine gas after dechlorination is 5-20ppm.
6. calcic suspended solid, chloride, the Integrated Processing Unit of salt bearing liquid wastes, it is characterized in that: it comprises waste collection tank, waste liquid charge pump, settling vessel, magma tank, magma pump, Clear liquid tank, clear liquid pump, tube mixer, gas-liquid separator, heat-exchanger rig, chlorination reaction accurate adjustment tank, chlorine absorption unit, hydrochloric acid tank and sour pump, described waste collection tank is connected by pipeline with the pump intake of waste liquid charge pump, the described pump discharge of waste liquid charge pump is connected by pipeline with the entrance of settling vessel, described settling vessel bottom is provided with magma outlet, top is provided with waste liquid purified liquor outlet, described magma outlet is connected with magma tank, described magma tank is connected with the pump intake of magma pump, described magma pumps into magma through magma pump and utilizes device reuse, described waste liquid purified liquor outlet is connected by pipeline with Clear liquid tank, described Clear liquid tank is connected by pipeline with the pump intake of clear liquid pump, described tube mixer is provided with waste liquid clear liquid entrance and hydrochloric acid entrance, described waste liquid clear liquid entrance is connected with the pump discharge of clear liquid pump, described gas-liquid separator is arranged on the end of tube mixer, the gaseous phase outlet of described gas-liquid separator is connected with chlorine absorption unit, described hydrochloric acid tank is connected with the pump intake of sour pump, the pipeline that described and sour pump pump discharge is connected is divided into two branch roads, one tunnel is used for being connected with the hydrochloric acid entrance of tube mixer, another road is used for being connected with the hydrochloric acid entrance of chlorination reaction accurate adjustment tank, described chlorination reaction accurate adjustment tank top is provided with two entrances, be respectively hydrochloric acid entrance and the liquid phase that fully do not react completely mixes liquid entrance, described liquid-phase mixing liquid entrance is connected with the outlet of tube mixer, described chlorination reaction accurate adjustment pot bottom is provided with reactant outlet, describedly export with reactant the pipeline be connected and be provided with heat-exchanger rig, the pipeline that described liquid-phase mixing liquid entrance is connected with the outlet of tube mixer is provided with heat-exchanger rig.
7. calcic suspended solid according to claim 6, chloride, the Integrated Processing Unit of salt bearing liquid wastes, it is characterized in that: described tube mixer exports the pipeline be connected with the liquid-phase mixing liquid entrance of chlorination reaction accurate adjustment tank and is provided with online pH monitoring meter, the pipeline that described sour pump pump discharge is connected with the hydrochloric acid entrance of tube mixer is provided with first flow adjusting control valve, the pipeline that described clear liquid pump pump discharge is connected with tube mixer waste liquid clear liquid entrance is provided with the second flow regulating and controlling valve, DCS Controlling System is monitored to count with online pH respectively and is connected, receive its detection signal, and be connected with the second flow regulating and controlling valve with first flow adjusting control valve, and the pH value of waste liquid clear liquid and hydrochloric acid reacted liquid-phase mixing liquid in tube mixer is regulated and controled according to the aperture of the pH value of on-line monitoring corresponding control first flow adjusting control valve and the second flow regulating and controlling valve.
8. calcic suspended solid according to claim 6, chloride, the Integrated Processing Unit of salt bearing liquid wastes, it is characterized in that: be provided with online ORP in described chlorination reaction accurate adjustment tank and monitor meter, the pipeline that described sour pump pump discharge is connected with the hydrochloric acid entrance of chlorination reaction accurate adjustment tank is provided with the 3rd flow regulating and controlling valve, DCS Controlling System and online ORP monitor to count and are connected, receive its detection signal, and be connected with the 3rd flow regulating and controlling valve, the ORP value of system in chlorination reaction regulating tank is regulated and controled according to the aperture of the corresponding control of on-line pH value the 3rd flow regulating and controlling valve.
9. the Integrated Processing Unit of calcic suspended solid according to claim 6, chloride, salt bearing liquid wastes, is characterized in that: described settling vessel is inclined-plane subsider.
10. the Integrated Processing Unit of calcic suspended solid according to claim 6, chloride, salt bearing liquid wastes, is characterized in that: described heat-exchanger rig is take recirculated water as the titanium tube heat exchanger of low-temperature receiver.
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Effective date of registration: 20191204 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Sinopec Jianghan Salt Chemical Hubei Co., Ltd Patentee after: China Petrochemical Co., Ltd. Address before: 430000 a village, Qianjiang, Hubei, Qianjiang Patentee before: Jianghan Salt & Chemical Complex, SINOPEC Corp. |