CN109499294A - A kind of working method of environmentally friendly soot processing device - Google Patents
A kind of working method of environmentally friendly soot processing device Download PDFInfo
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- CN109499294A CN109499294A CN201811608760.5A CN201811608760A CN109499294A CN 109499294 A CN109499294 A CN 109499294A CN 201811608760 A CN201811608760 A CN 201811608760A CN 109499294 A CN109499294 A CN 109499294A
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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
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
- B01D46/121—V-type arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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Abstract
The present invention relates to a kind of working methods of environmentally friendly soot processing device of environment protection field, including gas handling system, sedimenting system is provided with beside gas handling system, gas handling system is directly communicated to sedimenting system, it is equipped with powder delivering mechanism below the sedimenting system, conveyer is equipped with below the powder delivering mechanism and its cooperates the auxiliary body of conveyer setting；The working method of the soot processing device includes, step 1, starting suction system aspirates conical funnel lower part, starting storehouse pump carries out pressurization suction to point ash cellar, starting inlet duct supplies desulfurizing tower internal system, starting control pump carries out spray water supply to desulfurizing tower internal system, and starting quick lime discharge valve starts quick lime to carry out quantitative weighing；The invention leads to the process that the working method that soot processing device provides realizes the high efficiency filter layer by layer of sulfur-bearing flue dust and carries out the processing of quantitative sulphur removal, and the flue dust harmless treatment of realization is increased to the efficiency of dust treatment, reduces cost.
Description
Technical field
The present invention relates to the working methods of environmentally friendly soot processing device a kind of in environment protection field.
Background technique
With the development of economy, industrialization degree is higher and higher, and production scale constantly expands, and the flue gas for being discharged into atmosphere is also
More and more, in the various gaseous pollutants impacted to air quality, the quantity of SO2 flue gas is maximum, influences maximum, it
Acid rain is caused, ecological environment is destroyed, influences the health of people；Therefore, it before these industrialize flue gas emission to atmosphere, is required to
It is handled, wherein important is exactly desulfurization process；But as global sour crude oil and a large amount of of natural gas resource are opened
The continuous development of hair and coal chemical industry, sulphur recovery have become indispensable mating environmental protecting device；Energy conservation is advocated always in China
Emission reduction work, sulfur dioxide are more serious to the damage ratio of environment, and haze is also increasingly severe, increasingly strict with discharge standard
And raising, it is desirable that we continuously improve the technique of sulphur recovery, and especially advanced tail gas disposal technique could reduce the row of SO2
It puts, protects our environment；" petroleum refining industry pollutant emission standard " (GB 31570-2015) regulation: existing enterprise is certainly
From on July 1st, 2017 and newly-built enterprise executes sulfur recovery facility sulfur dioxide emissioning concentration from July 1st, 2015 and is less than
400mg/Nm3 (given area is less than 100mg/Nm3)；Sulfur dioxide emission reduction is imperative；CLAUS is improved from the thirties in last century
Since sulphur recovery technology realizes industrialized production, nearly development in 90 years and improvement have passed through, tended to be mature and perfect, but
Common second level CLAUS sulfur recovery facility, is limited, sulfur dioxide in flue gas concentration of emission usually exists by catalysts and solvents
300-800mg/Nm3 is not able to satisfy standard requirements at this stage.
Summary of the invention
The object of the present invention is to provide a kind of working method of environmentally friendly soot processing device, which leads to dust treatment dress
The working method for setting offer realizes the high efficiency filter layer by layer of sulfur-bearing flue dust and carries out the process of the processing of quantitative sulphur removal, realizes
Flue dust harmless treatment, be increased to the efficiency of dust treatment, reduce cost.
The object of the present invention is achieved like this；A kind of working method of environmentally friendly soot processing device, including air inlet system
System, gas handling system side are provided with sedimenting system, and gas handling system is directly communicated to sedimenting system, cooperates below the sedimenting system
It is provided with powder delivering mechanism, conveyer is equipped with below the powder delivering mechanism and its cooperation conveyer is set
The auxiliary body set；The working method of the soot processing device includes,
Step 1, starting suction system aspirate conical funnel lower part, and starting storehouse pump carries out pressurization suction to point ash cellar,
Starting inlet duct supplies desulfurizing tower internal system, and starting control pump carries out spray water supply to desulfurizing tower internal system,
Starting quick lime discharge valve starts quick lime to carry out quantitative weighing；
Step 2, the suction system of the lower part cooperation of conical funnel, may be implemented the suction to flue dust, a large amount of variable grains are big
Small flue dust successively drops to conical funnel from the first material leakage layer, the second material leakage layer, third material leakage layer and its N material leakage layer
Place；According to the size of soot dust granule diameter, flue dust be successively attracted to the first material leakage layer, the second material leakage layer, third material leakage layer and
On the sieve of its N material leakage layer；
The granule dust of step 3, each V-shaped region will not run helter-skelter, disorderly fly and rest on the first material leakage layer, the second material leakage layer,
Third material leakage layer and its N material leakage layer；
Step 4, the first material leakage layer, the second material leakage layer large dust particle be transported away and collect；
The dust of step 5, third material leakage layer and N material leakage layer directly passes through automatic feed dividing gate and flows in sub-material storehouse, then passes through
Storehouse pump transports short grained dust；
Step 6, dust in addition transports dust also by the blow tank under air lock, until being transported to desulfurizing tower
The middle part of system carries out spray process；At the same time the flue gas containing sulfide be transported to desulfurization Tower System top then again
It is moved downward by the flue gas that subsequent flue gas squeezes front；It is moved in the middle part of desulfurization Tower System and is sprayed；
Step 7, quick lime storehouse by quick lime discharge valve release quick lime and by motor helical scale quantitatively to
Material, control pump realize the quantitative control of water, and gas handling system realizes the quantitative control of air mass flow by flow control valve；Always it protects
The quantitative control of water holding, quick lime and its air, and spray process is carried out with the flue gas containing sulfide；
Step 8, waste water, which directly carries to be flowed into water cabinet, carries out double purification processing, in this way by desulfurization Tower System to flue gas
Spray process neutralization is carried out, then the flue gas by neutralization can be vented directly to atmosphere.
When the invention works, starting suction system conical funnel lower part is aspirated, starting storehouse pump to divide ash cellar into
Row pressurization suction, starting inlet duct desulfurizing tower internal system is supplied, starting control pump to desulfurizing tower internal system into
Row spray supplies water, and starting quick lime discharge valve starts quick lime to carry out quantitative weighing；The lower part cooperation of conical funnel
The suction to flue dust may be implemented in suction system, and the flue dust of a large amount of variable grain sizes is successively from the first material leakage layer, the second material leakage
Layer, third material leakage layer and its N material leakage layer drop at conical funnel；According to the size of soot dust granule diameter, flue dust is successively
It is attracted on the sieve of the first material leakage layer, the second material leakage layer, third material leakage layer and its N material leakage layer；Each V-shaped region
Granule dust will not run helter-skelter, and disorderly fly and rest on the first material leakage layer, the second material leakage layer, third material leakage layer and its N material leakage layer；The
One material leakage layer, the second material leakage layer large dust particle be transported away and collect；The powder of third material leakage layer and N material leakage layer
Dirt directly passes through automatic feed dividing gate and flows in sub-material storehouse, then is transported by storehouse pump to short grained dust, powder in addition
Dirt transports dust also by the blow tank under air lock, carries out at spray until being transported in the middle part of desulfurization Tower System
Reason；Then the top that the flue gas containing sulfide is transported to desulfurization Tower System at the same time is squeezed by subsequent flue gas again before
The flue gas in face is moved downward；It is moved in the middle part of desulfurization Tower System and is sprayed；Quick lime storehouse passes through quick lime outlet valve
Door releases quick lime and carries out dosing by motor helical scale, and control pump realizes the quantitative control of water, and gas handling system is logical
The quantitative control of overcurrent control valve realization air mass flow；Remain the quantitative control of water, quick lime and its air, and with contain
There is the flue gas of sulfide to carry out spray process；Waste water, which directly carries to be flowed into water cabinet, carries out double purification processing, passes through in this way
Desulfurization Tower System carries out spray process neutralization to flue gas, then the flue gas by neutralization can be vented directly to atmosphere.
The beneficial effects of the present invention are the working method that soot processing device provides is led in the invention realizes sulfur-bearing flue dust
High efficiency filter layer by layer and carry out quantitative sulphur removal processing process, the flue dust harmless treatment of realization is increased to flue dust
The efficiency of processing, reduces cost.
It as a further improvement of the present invention, is the first material leakage layer of guarantee, the second material leakage layer, third material leakage layer and its N
The effect of material leakage layer realization layering；On the first material leakage layer, the second material leakage layer, third material leakage layer and its N material leakage layer
It is provided with sieve, the diameter of the first material leakage layer upper screen cloth is greater than the diameter of the second material leakage layer upper screen cloth, the second material leakage layer
On the diameter of sieve be greater than the diameter of third material leakage layer upper screen cloth, the diameter of third material leakage layer upper screen cloth is greater than N material leakage layer
The diameter of upper screen cloth.
As a further improvement of the present invention, enough spaces carry out placing a large amount of cigarette for guarantee desulfurization Tower System
Dirt；The desulfurization Tower System includes upper, middle and lower；The space on the top accounts for the 50%- of entire desulfurizing tower system space
60%；The middle part is provided with spray equipment, and the lower part is equipped with ash hopper.
Detailed description of the invention
Fig. 1 is main view one of the invention.
Fig. 2 is main view two of the invention.
Enlarged drawing at A in Fig. 3 Fig. 1.
Wherein, 1 gas handling system, 2 sedimenting systems, 3 powder delivering mechanisms, 4 auxiliary bodies, 5 desulfurization Tower Systems, 6 chargers
Structure, 7 inlet ducts, 8 water inlet systems, 9 holding vessels, 10 conical funnels, 11 first material leakage layers, 12 second material leakage layers, 13 thirds
Material leakage layer, 14 N material leakage layers, 15 sieves, 16 automatic feed dividing gates, 17 sub-material storehouses, 18 storehouses pump, 19 air locks, 20 blow tanks,
21 tops, 22 middle parts, 23 lower parts, 24 quick lime storehouses, 25 Blast mechanisms, 26 quick lime discharge valves, 27 electron helical scales, 28 are received
Collect tank, 29 water inlet cabinets, 30 water inlet pipes, 31 control pumps, 32 outlet conduits, 33 flow control valves, 34 suction systems, 35 transports
Mechanism.
Specific embodiment
The object of the present invention is achieved like this: a kind of working method of environmentally friendly soot processing device, including air inlet system
System 1, is provided with sedimenting system 2 beside gas handling system 1, and gas handling system 1 is directly communicated to sedimenting system 2, under the sedimenting system 2
Face is equipped with powder delivering mechanism 3, and conveyer 35 and its cooperation are equipped with below the powder delivering mechanism 3
The auxiliary body 4 that conveyer 35 is arranged；The working method of the soot processing device includes,
Step 1, starting suction system 34 aspirate 10 lower part 23 of conical funnel, and starting storehouse pumps 18 pairs of points of ash cellars and carries out
Pressurization suction, to supplying inside desulfurization Tower System 5, starting controls in 31 pairs of desulfurization Tower Systems 5 of pump starting 7 function of inlet duct
Portion carries out spray water supply, and starting quick lime discharge valve 26 starts quick lime to carry out quantitative weighing；
Step 2, the suction system 34 that the lower part 23 of conical funnel 10 cooperates, may be implemented the suction to flue dust, a large amount of different
The flue dust of granular size successively declines from the first material leakage layer 11, the second material leakage layer 12, third material leakage layer 13 and its N material leakage layer 14
To at conical funnel 10；According to the size of soot dust granule diameter, flue dust is successively attracted to the first material leakage layer 11, the second material leakage
On the sieve 15 of layer 12, third material leakage layer 13 and its N material leakage layer 14；
The granule dust of step 3, each V-shaped region will not run helter-skelter, and disorderly fly and rest on the first material leakage layer 11, the second material leakage
Layer 12, third material leakage layer 13 and its N material leakage layer 14；
Step 4, the first material leakage layer 11, the second material leakage layer 12 large dust particle be transported away and collect；
The dust of step 5, third material leakage layer 13 and N material leakage layer 14 directly passes through automatic feed dividing gate 16 and flows to sub-material storehouse 17
In, then 18 pairs of short grained dust are pumped by storehouse and are transported；
Step 6, dust in addition transports dust also by the blow tank 20 under air lock 19, de- until being transported to
The middle part 22 of sulphur Tower System 5 carries out spray process；The flue gas containing sulfide is transported to the upper of desulfurization Tower System 5 at the same time
Then it is moved downward by the flue gas that subsequent flue gas squeezes front again in portion 21；It is moved to the middle part 22 of desulfurization Tower System 5
It is sprayed；
Step 7, quick lime storehouse 24 release quick lime by quick lime discharge valve 26 and are determined by electron helical scale 27
Amount feed, control pump 31 realize the quantitative control of water, and inlet duct 7 realizes the quantitative of air mass flow by flow control valve 33
System；It remains the quantitative control of water, quick lime and its air, and carries out spray process with the flue gas containing sulfide；
Step 8, waste water are fed directly into water cabinet 29 and carry out double purification processing, in this way by desulfurization Tower System 5 to flue gas
Spray process neutralization is carried out, then the flue gas by neutralization can be vented directly to atmosphere.
Sieve is provided on the first material leakage layer 11, the second material leakage layer 12, third material leakage layer 13 and its N material leakage layer 14
Net 15, the diameter of 11 upper screen cloth 15 of the first material leakage layer are greater than the diameter of 12 upper screen cloth 15 of the second material leakage layer, the second material leakage layer
The diameter of sieve 15 on 12 is greater than the diameter of 13 upper screen cloth 15 of third material leakage layer, and the diameter of 13 upper screen cloth 15 of third material leakage layer is big
In the diameter of 14 upper screen cloth 15 of N material leakage layer.
The desulfurization Tower System 5 includes top 21, middle part 22 and lower part 23；The space on the top 21 accounts for entire desulfurizing tower
The 50%-60% in 5 space of system；The middle part 22 is provided with spray equipment, and the lower part 23 is equipped with ash hopper.
When the invention works, starting suction system 34 aspirates 10 lower part 23 of conical funnel, and starting storehouse pumps 18 pairs
Point ash cellar carries out pressurization suction, and for starting 7 function of inlet duct to supplying inside desulfurization Tower System 5,31 pairs of pump of starting control de-
Spray water supply is carried out inside sulphur Tower System 5, starting quick lime discharge valve 26 starts quick lime to carry out quantitative weighing；Cone
The suction system 34 that the lower part 23 of funnel 10 cooperates, may be implemented the suction to flue dust, the flue dust of a large amount of variable grain sizes according to
It is secondary to drop to conical funnel 10 from the first material leakage layer 11, the second material leakage layer 12, third material leakage layer 13 and its N material leakage layer 14
Place；According to the size of soot dust granule diameter, flue dust is successively attracted to the first material leakage layer 11, the second material leakage layer 12, third material leakage
On the sieve 15 of layer 13 and its N material leakage layer 14；The granule dust in each V-shaped region will not run helter-skelter, and disorderly fly and rest on the
One material leakage layer 11, the second material leakage layer 12, third material leakage layer 13 and its N material leakage layer 14；First material leakage layer 11, the second material leakage layer 12
Large dust particle be transported away and collect；The dust of third material leakage layer 13 and N material leakage layer 14 directly passes through automatically
Sub-material gate 16 flows in sub-material storehouse 17, then pumps 18 pairs of short grained dust by storehouse and transport, other dust also by
Blow tank 20 under air lock 19 transports dust, and the middle part 22 until being transported to desulfurization Tower System 5 carries out at spray
Reason；Then the top 21 that the flue gas containing sulfide is transported to desulfurization Tower System 5 at the same time is squeezed by subsequent flue gas again
The flue gas of pressure front is moved downward；The middle part 22 for being moved to desulfurization Tower System 5 is sprayed；Quick lime storehouse 24 passes through raw stone
Grey discharge valve 26 releases quick lime and carries out dosing by electron helical scale 27, and control pump 31 realizes the quantitative of water
System, inlet duct 7 realize the quantitative control of air mass flow by flow control valve 33；Remain water, quick lime and its air
Quantitative control, and with containing sulfide flue gas carry out spray process；Waste water be fed directly to carried out into water cabinet 29 it is secondary
Purified treatment carries out spray process neutralization to flue gas by desulfurization Tower System 5 in this way, and the flue gas by neutralization then can be direct
It is discharged to atmosphere.
When the invention works, starting suction system 34 aspirates 10 lower part 23 of conical funnel, and starting storehouse pumps 18 pairs
Point ash cellar carries out pressurization suction, and for starting 7 function of inlet duct to supplying inside desulfurization Tower System 5,31 pairs of pump of starting control de-
Spray water supply is carried out inside sulphur Tower System 5, starting quick lime discharge valve 26 starts quick lime to carry out quantitative weighing；Due to work
The flue dust for a large amount of sulfur-bearings that industry production generates is entered in the sedimenting system 2 of the soot processing device by gas handling system 1, is passed through
The suction system 34 that the lower part 23 of conical funnel 10 cooperates, may be implemented the suction to flue dust, variable grains a large amount of in this way are big
Small flue dust successively drops to circular cone from the first material leakage layer 11, the second material leakage layer 12, third material leakage layer 13 and its N material leakage layer 14
At shape funnel 10；According to the size of soot dust granule diameter, flue dust be successively attracted to the first material leakage layer 11, the second material leakage layer 12,
On the sieve 15 of third material leakage layer 13 and its N material leakage layer 14；Then due to the first material leakage layer 11, the second material leakage layer 12, third
Material leakage layer 13 and its N material leakage layer 14 are in the shape of the letter V setting, so the granule dust in each V-shaped region will not run helter-skelter,
Disorderly fly, then the first material leakage layer 11, the second material leakage layer 12 large dust particle be transported away, and third material leakage layer 13 and N
The dust of material leakage layer 14 directly passes through automatic feed dividing gate 16 and flows in sub-material storehouse 17, then pumps 18 pairs of short grained dust by storehouse
It is transported, while in addition dust is transported also by the blow tank 20 under air lock 19, until being transported to desulfurizing tower
The middle part 22 of system 5 carries out spray process；The flue gas containing sulfide is transported to the top 21 of desulfurization Tower System 5 at the same time
Then it is moved downward by the flue gas that subsequent flue gas squeezes front again, is moved to the middle part 22 of desulfurization Tower System 5 always,
The quick lime storehouse 24 that the feeding mechanism 6 on 5 side of desulfurization Tower System is arranged at the same time is discharged by quick lime discharge valve 26
Quick lime out releases and then carries out dosing by electron helical scale 27；It is transported to desulfurization Tower System 5 always
Middle part 22 is sprayed, and cabinet 29 of intaking at the same time realizes the quantitative control of water by the control pump 31 on water inlet pipe 30,
And inlet duct 7 realizes the quantitative control of air mass flow by flow control valve 33, can remain water, quick lime in this way
And its quantitative control of air, and spray process is carried out with the flue gas containing sulfide, the waste water of generation is fed directly into water
Cabinet 29 carries out double purification processing, spray process neutralization is carried out to flue gas by desulfurization Tower System 5 in this way, by the cigarette of neutralization
Then gas can be vented directly to atmosphere, can achieve the requirement of environmental protection in this way.
The present invention is not limited to the above embodiments, on the basis of technical solution disclosed by the invention, the skill of this field
For art personnel according to disclosed technology contents, one can be made to some of which technical characteristic by not needing creative labor
A little replacements and deformation, these replacements and deformation are within the scope of the invention.
Claims (3)
1. a kind of working method of environmentally friendly soot processing device, including gas handling system, gas handling system side is provided with sedimentation system
System, gas handling system are directly communicated to sedimenting system, powder delivering mechanism, the powder are equipped with below the sedimenting system
It is equipped with conveyer below delivering mechanism and its cooperates the auxiliary body of conveyer setting；The described dust treatment
The working method of device includes,
Step 1, starting suction system aspirate conical funnel lower part, and starting storehouse pump carries out pressurization suction to point ash cellar,
Starting inlet duct supplies desulfurizing tower internal system, and starting control pump carries out spray water supply to desulfurizing tower internal system,
Starting quick lime discharge valve starts quick lime to carry out quantitative weighing；
Step 2, the suction system of the lower part cooperation of conical funnel, may be implemented the suction to flue dust, a large amount of variable grains are big
Small flue dust successively drops to conical funnel from the first material leakage layer, the second material leakage layer, third material leakage layer and its N material leakage layer
Place；According to the size of soot dust granule diameter, flue dust be successively attracted to the first material leakage layer, the second material leakage layer, third material leakage layer and
On the sieve of its N material leakage layer；
The granule dust of step 3, each V-shaped region will not run helter-skelter, disorderly fly and rest on the first material leakage layer, the second material leakage layer,
Third material leakage layer and its N material leakage layer；
Step 4, the first material leakage layer, the second material leakage layer large dust particle be transported away and collect；
The dust of step 5, third material leakage layer and N material leakage layer directly passes through automatic feed dividing gate and flows in sub-material storehouse, then passes through
Storehouse pump transports short grained dust；
Step 6, dust in addition transports dust also by the blow tank under air lock, until being transported to desulfurizing tower
The middle part of system carries out spray process；At the same time the flue gas containing sulfide be transported to desulfurization Tower System top then again
It is moved downward by the flue gas that subsequent flue gas squeezes front；It is moved in the middle part of desulfurization Tower System and is sprayed；
Step 7, quick lime storehouse by quick lime discharge valve release quick lime and by motor helical scale quantitatively to
Material, control pump realize the quantitative control of water, and gas handling system realizes the quantitative control of air mass flow by flow control valve；Always it protects
The quantitative control of water holding, quick lime and its air, and spray process is carried out with the flue gas containing sulfide；
Step 8, waste water, which directly carries to be flowed into water cabinet, carries out double purification processing, in this way by desulfurization Tower System to flue gas
Spray process neutralization is carried out, then the flue gas by neutralization can be vented directly to atmosphere.
2. a kind of working method of environmentally friendly soot processing device according to claim 1, it is characterised in that: described
It is provided with sieve on one material leakage layer, the second material leakage layer, third material leakage layer and its N material leakage layer, is sieved on the first material leakage layer
The diameter of net is greater than the diameter of the second material leakage layer upper screen cloth, and the diameter of the sieve on the second material leakage layer, which is greater than on third material leakage layer, to be sieved
The diameter of net, the diameter of third material leakage layer upper screen cloth are greater than the diameter of N material leakage layer upper screen cloth.
3. a kind of working method of environmentally friendly soot processing device according to claim 1 or 5, it is characterised in that: described
Desulfurization Tower System includes upper, middle and lower；The space on the top accounts for the 50%-60% of entire desulfurizing tower system space；Institute
It states middle part and is provided with spray equipment, the lower part is equipped with ash hopper.
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| CN201811608760.5A CN109499294A (en) | 2018-12-27 | 2018-12-27 | A kind of working method of environmentally friendly soot processing device |
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