CN102557315A - Process and system for treating gasified grey water - Google Patents
Process and system for treating gasified grey water Download PDFInfo
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- CN102557315A CN102557315A CN2011103578382A CN201110357838A CN102557315A CN 102557315 A CN102557315 A CN 102557315A CN 2011103578382 A CN2011103578382 A CN 2011103578382A CN 201110357838 A CN201110357838 A CN 201110357838A CN 102557315 A CN102557315 A CN 102557315A
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Abstract
The invention discloses a process and system for treating gasified grey water. According to the process, a power quantity exchange process is provided so as to recover pressure energies contained in high-temperature high-pressure gasified black water, and the pressure energies are converted into mechanical energies so as to carry out external action; after treated grey water is subjected to the combined pressurization of a power quantity exchanger and a centrifugal pump driven by a motor, the grey water is heated by high-pressure flash steam, and then, is conveyed to a gasification section for use; the pressure of the gasified high-pressure black water is reduced to 1.0 MPa after the gasified high-pressure black water passes through the power quantity exchanger, the gasified high-pressure black water is conveyed to be subjected to high-pressure flash treatment, and then, the flash process is not changed; and in order to facilitate the pressure regulation of a high-pressure flash tank and avoid overpressure, a regulation valve is arranged in front of a control valve which leads a high-flash separator to a conversion section, and the high-flash separator is led to a total torch, and the occurrence of environmental incidents, such as torch extinguishment or direct emission and the like, is avoided. According to the process and system for treating the gasified grey water, the process is combined with the system, and the problems of energy source waste, environment pollution, cumbersomeness in operation, and the like, in the prior art can be effectively solved through the improvement on the prior art and the scientific and rational energy utilization.
Description
Technical field
The invention belongs to gasification grey water handing technical field, relate to a kind of grey water treatment system, especially a kind of gasification grey water handing technology and system based on merit amount exchange process.
Background technology
The cleaning of coal is the great technical task in current China energy and the environmental protection field with efficient the utilization, also is one of gordian technique of Chinese national economy sustainable development.Gasification is the main path that primary energy source is converted into clean secondhand energy; At present representatively in entrained flow bed gasification technology mainly contain two kinds: adopting coal water slurry is that Texaco (Texaco) vapourizing furnace of raw material is shell (Shell) vapourizing furnace of raw material with adopting dried coal powder; All things considered; These two kinds of technologies all have the characteristics of safety, stable, long-term operation, but still have the further solution of problems needs.In the coal water slurry gasification technology, it is a typical example that the pressure energy in gasification Heisui River is not utilized effectively.
Coal water slurry gasification technology is a kind of flow process that domestic in recent years newly-built methyl alcohol and synthetic ammonia installation generally adopt, and its grey water handing flow process is as shown in Figure 1.The high pressure Heisui River temperature and pressure that gasification workshop section produces is about 250 ℃, 6.4MPa, gets into hp flash drum 102 through throttling valve 101, and the outlet of hp flash drum 102 tops is connected to the high interchanger 103 that dodges, and is sent to the high separator 104 that dodges afterwards.Hp flash drum 102 bottoms are connected to low pressure flash chamber 105, and the gas phase after the flash distillation links to each other with deoxygenation groove 107 through water cooler 106.High gas phase of dodging separator 104 is sent to the CO conversion section, and liquid phase gets into deoxygenation groove 107, and conversion phlegma, Yuan Shui, grey water pipeline 124 also have LP steam also all to be sent to deoxygenation groove 107, are provided with vent muffler 110 at the top of deoxygenation groove.Buck in the deoxygenation groove 107 gets into impeller pump 108 after bottom line and dispersant, the chemical industry section of degassing after interchanger 103 heats is dodged through height in the pressurization rear section, and part is returned the deoxygenation groove through reverse flow valve 109.
The liquid phase of low pressure flash chamber 105 is mixed the back with the gasification pulp water and is got into vacuum flasher top 111, and the gas phase after the flash distillation is sent to separator 116 through condensing surface 113, and the bottom gas phase is sent to vacuum separation tank 117 through condensing surface 114, and the bottom liquid phase gets into subsider 115.The gas phase of vacuum separation tank 117 is converged with the gas phase of separator 116 after condensation; Get into next stage separator 120 through vacuum pump 119; Separate back gas phase emptying, liquid phase is returned vacuum separation tank 117 through water cooler 121, and the liquid phase of vacuum separation tank 117 is delivered to coal-grinding workshop section through vacuum pump 122.Clarifying buck is sent to deoxygenation groove 107 and WWT through pipeline 124 respectively again in the subsider 115 behind buck storage tank 123, and the bottom mortar is sent to pressure filter 125 and handles.The shortcoming of this technology is following:
In the above technical process, the pressure energy of the high pressure Heisui River that gasification workshop section produces (before the throttling valve 101) is not utilized effectively, and this part considerable energy consumes in vain on reducing valve 101, causes whole grey water handing and coal gasification course energy consumption higher.
The flashed vapour that hp flash drum 102 produces dodges interchanger 103 heating high-pressure bucks through height, behind too high sudden strain of a muscle separator 104, delivers to the CO transformation system again.Must be when hp flash drum 102 working pressures are too high through discharging on the spot or regulating to the mode of total flare discharge; Because flashed vapour has higher WGR; Often cause the total torch of factory to extinguish maybe and can't light; And discharging also can cause environmental pollution or personal injury on the spot, thereby produces environmental accident and potential safety hazard.
The mode imperfection.Because the defective of mode, some equipment and processing parameter are difficult to realize accurately perhaps steady running of control, like the superpressure adjusting of hp flash drum 102 etc.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art; A kind of gasification grey water handing technology and system are provided; This technology coupling system is through the improvement to existing technology; Through the energy utilization of reasonable science, can effectively solve problems such as the energy dissipation that exists in the existing technology, environmental pollution, complex operation.
The objective of the invention is to realize through following technical scheme:
This gasification grey water handing technology may further comprise the steps:
1) discharges pressure energy
At first gasification Heisui River is discharged pressure energy its pressure is reduced, and reclaim the pressure energy that gasification Heisui River discharges, the pressure energy that discharges is converted into mechanical energy externally does work;
2) MSF
The gasification Heisui River that makes process discharge pressure energy gets into hp flash drum, low pressure flash chamber and two-stage vacuum flash tank successively and carries out the flash distillation processing, removes the macrobead solid impurity through subsider then, at last solid impurity is separated; Make the high separator that dodges of gas phase entering of hp flash drum carry out gas-liquid separation, make gas phase go conversion or total torch emptying, liquid phase reclaims through the deoxygenation groove;
3) make the gas phase of low pressure flash get into the deoxygenation groove, make its with the direct contact heat-exchanging of buck after be recovered, the low pressure buck after the processing becomes the high pressure buck after through heating, reclaims the heat of high pressure flash gas again, is sent to gasification workshop section then and uses.
Further, make the pressure energy in the gasification Heisui River of reclaiming in the step 1) unite pressurization to the treated low pressure buck in the said step 3) through merit amount interchanger and impeller pump.
The present invention also proposes a kind of gasification grey water treatment system of realizing above-mentioned technology, comprises merit amount interchanger, high pressure ash water pump, hp flash drum, high interchanger, high separator, low pressure flash chamber, deoxygenation groove, vacuum flasher, subsider, separator, vacuum separation tank, separator, buck storage tank and the pressure filter of dodging of dodging.Said merit amount interchanger is connected with said high pressure ash water pump through clutch coupling; The low pressure outlet end of said merit amount interchanger is connected with the entrance end of said hp flash drum through pipeline; The upper gaseous phase exit end of said hp flash drum dodges the entrance end that interchanger connects paramount sudden strain of a muscle separator through pipeline through height; The bottom liquid phase exit end of said hp flash drum is connected to the entrance end of low pressure flash chamber; The upper gaseous phase exit end of said low pressure flash chamber is connected to the deoxygenation groove through the low interchanger that dodges; The bottom liquid phase exit end of low pressure flash chamber together connects into vacuum flasher top with gasification pulp water pipeline exit end; The upper end exit end on vacuum flasher top is connected to the entrance end of separator through first condensing surface, and the liquid phase exit end of vacuum flasher bottom is connected to the entrance end of subsider; The outlet at bottom end of said deoxygenation groove and dispersion agent pipeline together are connected to the entrance end of high pressure ash water pump, and said high pressure buck pump outlet end connects paramount sudden strain of a muscle interchanger; Said high pressure ash water pump also is connected to the entrance end of deoxygenation groove through reverse flow valve; Said vacuum flasher bottom gas phase is connected to the entrance end of vacuum separation tank through second condensing surface; The entrance end of said vacuum separation tank also is connected to the exit end of separator bottom; The upper gaseous phase exit end of said vacuum separation tank together is connected to the inlet side of first vacuum pump with the gaseous phase outlet end of said separator upper end after through the 3rd condensing surface; Said first vacuum pump go out the entrance end that end is connected to said separator; The outlet at bottom end of said separator is connected to the entrance end of vacuum separation tank through supercooler, and the bottom liquid phases of vacuum separation tank is connected to coal-grinding workshop section through second vacuum pump; The top clear liquor exit end of said subsider is connected to the entrance end of buck storage tank, and the exit end of said buck storage tank connects Sewage treatment systems and deoxygenation groove.
Further, more than the pipeline in gasification Heisui River is divided into two branch roads, and wherein a branch road is connected with the entrance end of said merit amount interchanger, and another branch road is connected to the entrance end of hp flash drum through throttling valve (204).
Above-mentioned grey water lines from the buck storage tank gets into the deoxygenation groove with being connected after the raw water tubes road is converged; Said high liquid phase export pipeline and the conversion phlegma that dodges separator also gets into the deoxygenation groove from another position; The high gas phase pipeline that dodges separator then is sent to conversion section through first variable valve, and the high gas phase pipeline that dodges separator also is sent to total torch through another branch road through second variable valve.
Above-mentioned merit amount interchanger adopts turbine type.
The present invention has following beneficial effect:
1. the present invention is provided with merit amount exchange process, and contained pressure energy in the gasification Heisui River of recovery HTHP is converted into mechanical energy and externally does work.
2. merit amount interchanger set-up mode of the present invention adopts and links to each other with impeller pump is coaxial, and merit amount interchanger is used for helping acting with the coaxial high pressure ash water pump that passes to of the pressure energy that reclaims, and saves energy consumption.
3. after treated buck process merit amount interchanger of the present invention and motor-driven impeller pump are united pressurization, reclaim high pressure flash gas heat again, be sent to gasification workshop section then and use, can under abnomal condition, make impeller pump adopt electric energy to drive, emergency capability is strong.
4. pressure descends behind the process merit amount interchanger of gasification high pressure of the present invention Heisui River, is sent to high pressure flash again and handles, and flash distillation flow process does not afterwards change.
5. regulate for the ease of the high pressure flash pressure tank, prevent superpressure, dodge at height and before separator is gone to the valve of conversion section one variable valve is set and leads to total torch, avoided torch to extinguish or the directly generation of environmental accident such as discharging.
Description of drawings
Fig. 1 is the process flow sheet of prior art;
Fig. 2 is a process flow sheet of the present invention.
Wherein: among Fig. 1,101-throttling valve, 102-hp flash drum, high interchanger, high separator, 105-low pressure flash chamber, low interchanger, 107-deoxygenation groove, 108-high pressure ash water pump, 109-reflux pipeline, 110-sound damper, 111-vacuum flasher top, 112-vacuum flasher bottom, 113-condensing surface, 114-condensing surface, 115-subsider, 116-separator, 117-vacuum separation tank, 118-condensing surface, 119-vacuum pump, 120-separator, 121-water cooler, 122-vacuum pump, 123-buck storage tank, 124-ash water pipeline, the 125-pressure filter of dodging of 106-of dodging of 104-of dodging of 103-;
Among Fig. 2,201-merit amount interchanger, 202-clutch coupling, 203-high pressure ash water pump, 204-throttling valve, 205-hp flash drum, high interchanger, high separator, 208-low pressure flash chamber, low interchanger, 210-deoxygenation groove, 211-reverse flow valve, 212-vacuum flasher top, 213-vacuum flasher bottom, 214-first condensing surface, 215-second condensing surface, 216-subsider, 217-separator, 218-vacuum separation tank, 219-the 3rd condensing surface, 220-first vacuum pump, 221-separator, 222-water cooler, 223-second vacuum pump, 224-buck storage tank, 225-ash water pipeline, 226-pressure filter, 227-sound damper, 228-first variable valve, 229-second variable valve of dodging of 209-of dodging of 207-of dodging of 206-.
Embodiment
The present invention at first proposes a kind of gasification grey water handing technology, and this technology specifically may further comprise the steps:
1) discharges pressure energy
At first gasification Heisui River is discharged pressure energy its pressure is reduced, and reclaim the pressure energy that gasification Heisui River discharges, the pressure energy that discharges is converted into mechanical energy externally does work;
2) MSF
The gasification Heisui River that makes process discharge pressure energy gets into hp flash drum, low pressure flash chamber and two-stage vacuum flash tank successively and carries out the flash distillation processing, removes the macrobead solid impurity through subsider then, at last solid impurity is separated; Make the high separator that dodges of gas phase entering of hp flash drum carry out gas-liquid separation, make gas phase go conversion or total torch emptying, liquid phase reclaims through the deoxygenation groove;
3) make the gas phase of low pressure flash get into the deoxygenation groove, make its with the direct contact heat-exchanging of buck after be recovered, the low pressure buck after the processing becomes the high pressure buck after through pressurization, reclaims the heat of high pressure flash gas again, is sent to gasification workshop section then and uses.Make the pressure energy in the gasification Heisui River of reclaiming in the step 1) unite pressurization to the treated low pressure buck in the said step 3) through merit amount interchanger and impeller pump.
According to above technological design, the present invention also proposes a kind of gasification grey water treatment system that is used to realize above-mentioned technology, system of the present invention is done describing in further detail below in conjunction with accompanying drawing:
Referring to Fig. 2: this kind gasification grey water treatment system comprises merit amount interchanger 201, high pressure ash water pump 203, hp flash drum 205, high interchanger 206, high separator 207, low pressure flash chamber 208, deoxygenation groove 210, vacuum flasher, subsider 216, separator 217, vacuum separation tank 218, separator 221, buck storage tank 224 and the pressure filter 226 of dodging of dodging.Merit amount interchanger 201 is connected with high pressure ash water pump 203 through clutch coupling 202; The low pressure outlet end of merit amount interchanger 201 is connected with the entrance end of hp flash drum 205 through pipeline; The upper gaseous phase exit end of hp flash drum 205 dodges the entrance end that interchanger 206 connects paramount sudden strain of a muscle separator 207 through pipeline through height; The bottom liquid phase exit end of hp flash drum 205 is connected to the entrance end of low pressure flash chamber 208; The upper gaseous phase exit end of low pressure flash chamber 208 is connected to deoxygenation groove 210 through the low interchanger 209 that dodges; The bottom liquid phase exit end of low pressure flash chamber 208 together connects into vacuum flasher top 212 with gasification pulp water pipeline exit end; The gaseous phase outlet end on vacuum flasher top 212 is connected to the entrance end of separator 217 through first condensing surface 214, and the liquid phase exit end of vacuum flasher bottom 213 is connected to the entrance end of subsider 216; The outlet at bottom end of deoxygenation groove 210 and dispersion agent pipeline together are connected to the entrance end of high pressure ash water pump 203, and the exit end of high pressure ash water pump 203 connects paramount sudden strain of a muscle interchanger 206; High pressure ash water pump 203 also is connected to the entrance end of deoxygenation groove 210 through reverse flow valve 211; The gas phase of vacuum flasher bottom 213 is connected to the entrance end of vacuum separation tank 218 through second condensing surface 215; The entrance end of vacuum separation tank 218 also is connected to the exit end of separator 217 bottoms; The upper gaseous phase exit end of vacuum separation tank 218 together is connected to the inlet side of first vacuum pump 220 through the 3rd condensing surface 219 backs and the gaseous phase outlet end of separator 217 upper ends; First vacuum pump 220 go out the entrance end that end is connected to said separator 221; The outlet at bottom end of separator 221 is connected to the entrance end of vacuum separation tank 218 through supercooler 222, and the bottom liquid phases of vacuum separation tank 218 is connected to coal-grinding workshop section through second vacuum pump 223; The top clear liquor exit end of subsider 216 is connected to the entrance end of buck storage tank 224, and the exit end of buck storage tank 224 connects Sewage treatment systems and deoxygenation groove 210.In preferred version of the present invention, the pipeline in the gasification Heisui River of this system is divided into two branch roads, and wherein a branch road is connected with the entrance end of merit amount interchanger 201, and another branch road is connected to the entrance end of hp flash drum 205 through throttling valve 204.Get into deoxygenation groove 210 from the grey water lines of buck storage tank 224 with being connected after the raw water tubes road is converged; High liquid phase export pipeline and the conversion phlegma that dodges separator 207 also gets into deoxygenation groove 210 from another position; The high gas phase pipeline that dodges separator 207 then is sent to conversion section through first variable valve 228, and the high gas phase pipeline that dodges separator 207 also can be sent to total torch through second variable valve 229 through another branch road.
Below the working process of the gasification grey water treatment system of the invention described above is described in detail:
Discharge from low-tension side after at first discharging pressure energy through merit amount interchanger 201 in gasification Heisui River; Get into hp flash drum 205 then and under the pressure of 1.0MPa, carry out flash distillation; The gained gas phase gets into the high separator 207 that dodges from the top through the high interchanger 206 that dodges, and the gained liquid phase gets into low pressure flash chamber 208 through the bottom pressure relief valve.Liquid phase is after flash distillation under the pressure of 0.09MPa in the low pressure flash chamber 208, and gas phase gets into deoxygenation groove 210 through low interchanger 209 backs of dodging; Liquid phase together gets into vacuum flasher top 212 with the gasification pulp water.Buck adds dispersion agent after bottom pipe gets into high pressure ash water pump 203 inlets in the deoxygenation groove 210.Merit amount interchanger 201 transmits with realization merit amount through 202 coaxial linking to each other of clutch coupling with high pressure ash water pump 203; After too high sudden strain of a muscle interchanger 206 heating, get into gasification workshop section through the buck part after the associating pressurization, another part is got back to deoxygenation groove 210 through reverse flow valve 211.(like driving, merit amount switch failure etc.) high pressure Heisui River can get into hp flash drum 205 through by-pass throttle valve 204 under the improper operating mode, and merit amount interchanger 201 is placed in short-circuit condition, and impeller pump 203 relies on the motor operation separately, and flow process returns to original flow process.
Working pressure is-0.06MPa in the vacuum flasher top 212, and the gained gas phase gets into separator 217 through first condensing surface 214, and the gained liquid phase gets into vacuum flasher bottom 213 through variable valve.Bottom flash distillation operation back temperature under-0.09MPa is reduced to 45 ℃; Gas phase gets into vacuum separation tank 218 through second condensing surface 215; The gas phase of vacuum separation tank 218 is converged with the gas phase of separator 217 behind the 3rd condensing surface 219, sends into next stage separator 221 by first vacuum pump 220 again, separates back gas phase emptying; Liquid phase is returned vacuum separation tank 218 after water cooler 222 coolings, the liquid phase of vacuum separation tank 218 is delivered to coal-grinding workshop section through second vacuum pump 223 and carried out second stage employ.
The liquid phase of vacuum flasher bottom 213 is removed the macrobead solid impurity through subsider 216, and the gained clear liquor is sent to deoxygenation groove 210 through pipeline 225 again behind buck storage tank 224, also have few part to see out-of-bounds (WWT) off; The gained mortar is sent to filtering equipment 226 and handles.Buck and Yuan Shui from buck storage tank 224 converge back entering deoxygenation groove 210.High liquid phase and the conversion phlegma that dodges separator 207 also gets into deoxygenation groove 210 from another position, and high gas phase of dodging separator 207 then is sent to conversion section through first variable valve 228, also can be sent to total torch through second variable valve 229 under the improper operating mode.
Regulate for the ease of hp flash drum 205 pressure, prevent superpressure, one second variable valve of setting 229 also leads to total torch before height dodges separator 207 to go to first variable valve 228 of conversion section.The gas phase of hp flash drum 205 contained humidity behind supercooler and separator significantly reduces, and has avoided torch to extinguish or direct environmental accident such as discharging, has realized that simultaneously pressure regulates and two targets of environmental benefit.This valve should be set to program control variable valve, and is set to manually control the HIC form, regulates with the handled easily personnel.
In sum, technology of the present invention and system have solved that the existing procedure energy consumption is high, environmental benefit is poor, the defective of fluctuation of service, have characteristics simple in structure, easy to maintenance simultaneously.
Claims (6)
1. a gasification grey water handing technology is characterized in that, may further comprise the steps:
1) discharges pressure energy
At first gasification Heisui River is discharged pressure energy its pressure is reduced, and reclaim the pressure energy that gasification Heisui River discharges, the pressure energy that discharges is converted into mechanical energy externally does work;
2) MSF
The gasification Heisui River that makes process discharge pressure energy gets into hp flash drum, low pressure flash chamber and two-stage vacuum flash tank successively and carries out the flash distillation processing, removes the macrobead solid impurity through subsider then, at last solid impurity is separated; Make the high separator that dodges of gas phase entering of hp flash drum carry out gas-liquid separation, make gas phase go conversion or total torch emptying, liquid phase reclaims through the deoxygenation groove;
3) make the gas phase of low pressure flash get into the deoxygenation groove, make its with the direct contact heat-exchanging of buck after be recovered, the low pressure buck after the processing presses to the high pressure buck through adding, and passes through the heating of HP steam again, is sent to gasification workshop section then and uses.
2. gasification grey water handing technology according to claim 1 is characterized in that, makes the pressure energy in the gasification Heisui River of reclaiming in the step 1) unite pressurization through merit amount interchanger and impeller pump to the treated low pressure buck in the said step 3).
3. gasification grey water treatment system of realizing the said technology of claim 1; Comprise merit amount interchanger (201), high pressure ash water pump (203), hp flash drum (205), high interchanger (206), high separator (207), low pressure flash chamber (208), deoxygenation groove (210), vacuum flasher, subsider (216), separator (217), vacuum separation tank (218), separator (221), buck storage tank (224) and the pressure filter (226) of dodging of dodging, it is characterized in that: said merit amount interchanger (201) is connected with said high pressure ash water pump (203) through clutch coupling (202); The low pressure outlet end of said merit amount interchanger (201) is connected with the entrance end of said hp flash drum (205) through pipeline; The upper gaseous phase exit end of said hp flash drum (205) dodges the entrance end that interchanger (206) connects paramount sudden strain of a muscle separator (207) through pipeline through height; The bottom liquid phase exit end of said hp flash drum (205) is connected to the entrance end of low pressure flash chamber (208); The upper gaseous phase exit end of said low pressure flash chamber (208) is connected to deoxygenation groove (210) through the low interchanger (209) that dodges; The bottom liquid phase exit end of low pressure flash chamber (208) together connects into vacuum flasher top (212) with gasification pulp water pipeline exit end; The upper end exit end on vacuum flasher top (212) is connected to the entrance end of separator (217) through first condensing surface (214), and the liquid phase exit end of vacuum flasher bottom (213) is connected to the entrance end of subsider (216); The outlet at bottom end of said deoxygenation groove (210) and dispersion agent pipeline together are connected to the entrance end of high pressure ash water pump (203), and the exit end of said high pressure ash water pump (203) connects paramount sudden strain of a muscle interchanger (206); Said high pressure ash water pump (203) also passes through the inlet side that reverse flow valve (211) is connected to deoxygenation groove (210); Said vacuum flasher (213) bottom gas phase is connected to the entrance end of vacuum separation tank (218) through second condensing surface (215); The entrance end of said vacuum separation tank (218) also is connected to the exit end of separator (217) bottom; The upper gaseous phase exit end of said vacuum separation tank (218) together is connected to the entrance end of first vacuum pump (220) through the 3rd condensing surface (219) back and the gaseous phase outlet end of said separator (217) upper end; The exit end of said first vacuum pump (220) is connected to the entrance end of said separator (221); The outlet at bottom end of said separator (221) is connected to the entrance end of vacuum separation tank (218) through supercooler (220), and the bottom of vacuum separation tank (218) is connected to coal-grinding workshop section through second vacuum pump (223); The top clear liquor exit end of said subsider (216) is connected to the entrance end of buck storage tank (224), and the exit end of said buck storage tank (224) connects Sewage treatment systems and deoxygenation groove (210).
4. gasification grey water treatment system according to claim 3; It is characterized in that; The pipeline in gasification Heisui River is divided into two branch roads; Wherein a branch road is connected with the entrance end of said merit amount interchanger (201), and another branch road is connected to the entrance end of hp flash drum (205) through throttling valve (204).
5. gasification grey water treatment system according to claim 3; It is characterized in that; The said high gas phase pipeline that dodges separator (207) then is sent to conversion section through first variable valve (228), and the high gas phase pipeline that dodges separator (207) also is sent to total torch through another branch road through second variable valve (229).
6. gasification grey water treatment system according to claim 3 is characterized in that, said merit amount interchanger (201) adopts turbine type.
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