CN207684896U - A kind of coal quality particle gasifying electricity generation or heat supply co-producing active carbon device - Google Patents
A kind of coal quality particle gasifying electricity generation or heat supply co-producing active carbon device Download PDFInfo
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Abstract
The utility model is a kind of coal quality particle gasifying electricity generation or heat supply co-producing active carbon device; solve coal quality granular activated carbon production in charing and activating process in environmental pollution, it is of high cost the problems such as; it realizes power generation or heat supply, improves the adsorption capacity of carbonized material and active carbon finished products.It includes gasification furnace, steam boiler, activation furnace；The gasification furnace includes shell, stone device, feed auger, fire grate device, air extractor, goes out charcoal spiral, twin-stage spraying steam device；Housing bottom has fire grate device；It is charcoal spiral below fire grate device；Housing central section has the air extractor of combustible gas, and twin-stage spraying steam device is provided between air extractor and fire grate device；The outlet for going out charcoal spiral is communicated with the material inlet of activation furnace；The air outlet of air extractor is communicated with the fuel gas inlet of steam boiler；The steam (vapor) outlet of steam boiler is communicated by a branch with the steam inlet of activation furnace, is communicated by another branch outward supplying heat or with the steam inlet of steam turbine.
Description
Technical field
The utility model is related to coal quality particle charcoal gasifying electricity generation or heat supply while a kind of devices of co-producing active carbon, belong to coal
Activated carbon production, coal gasification and the energy crossing domain.
Background technology
Coaly activated carbon has many advantages, such as that intensity is big, absorption property is good, micropore is flourishing, easy regeneration, is accounted in activated carbon market
There is important share.China is the first big country of Activated Carbon Production in the world, about 600,000 tons of annual output, wherein 400,000 tons of coaly activated carbon
Left and right.The production of coal quality granular activated carbon is needed by raw material screening, broken milling, extrusion forming, charing, activation and product handling system
Etc. techniques.Charring process and carbonization device are piths in coaly activated carbon production, and carbonization temperature is at 600 DEG C or so, charing
Equipment has kiln formula stove, rake stove, spiral stove, rotary furnace etc., industrially based on rotary furnace；It is divided into according to raw material mode of heating
External-heat and internal heat type, internal heat type heat transfer it is relatively more efficient, but carbonize after tail gas it is more, need processing after discharge, cost compared with
Height also results in the waste of the energy；Coal quality particle charcoal is addition coal tar extrusion forming, the hole of coking and blocking charcoal when being heated,
Carbonized material quality is not high, and required soak time is longer in later stage activating process, increases energy consumption, and the absorption of final active carbon finished products
Index is in conventional level, and iodine sorption value is in 1000-1100mg/g, specific surface area 950-1050m2/ g, it is difficult to there is larger carry
It is high.
Invention content
The utility model is directed to charing in coal quality granular activated carbon production process, and vent gas treatment is of high cost, carbonized material quality compared with
It is low, activation energy consumption is higher, the problems such as active carbon finished products absorption index is bad, it is proposed that coal quality particle gasifying electricity generation or heat supply coproduction
Activated-carbon device, solve coal quality granular activated carbon production in charing and activating process in environmental pollution, it is of high cost the problems such as
While, it realizes power generation or heat supply, improves the adsorption capacity of carbonized material and active carbon finished products, significantly improve economic benefit.
Coal quality particle gasifying electricity generation described in the utility model or heat supply co-producing active carbon device, including gasification furnace, steam
Boiler, activation furnace；The gasification furnace includes shell, stone device, feed auger, fire grate device, air extractor, goes out charcoal spiral；
The head cover of case top is equipped with air inlet, stone device, and upper part of the housing side is equipped with feed auger；Stone device lower part be inserted into
Expect below spiral, fire grate device is arranged in housing bottom；It is charcoal spiral below fire grate device；Housing central section is provided with combustible gas
Air extractor, the gasification furnace further include twin-stage spraying steam device, and two up and down are provided between air extractor and fire grate device
The twin-stage spraying steam device of spraying steam device composition；The outlet for going out charcoal spiral is communicated with the material inlet of activation furnace；Air extractor
Air outlet communicated with the fuel gas inlet of steam boiler；The steam (vapor) outlet of steam boiler is entered by the steam of a branch and activation furnace
Mouth communicates, and is communicated by another branch outward supplying heat or with the steam inlet of steam turbine；
Upper and lower spraying steam apparatus structure is identical, includes the main air inlet coil pipe communicated with the steam (vapor) outlet of the steam boiler
The punching branch pipe composition of enclosure interior is communicated and extend into main air inlet coil pipe with more.
As being further improved to the coal quality particle gasifying electricity generation or heat supply co-producing active carbon device, it further includes
Acid dip pickle, water washing device, drying device, breaker, screening plant, coal quality granular activated carbon after the activation of activated stove according to
It is secondary to sieve to obtain coal by acid dip pickle pickling, water washing device water tank, drying device drying, breaker crushing, screening plant
Matter granular activated carbon finished product.
As being further improved to the coal quality particle gasifying electricity generation or heat supply co-producing active carbon device, the activation
Stove is rotary activated furnace.
As being further improved to the coal quality particle gasifying electricity generation or heat supply co-producing active carbon device, upper spraying steam
The amount for the water vapour that device sprays into, the micro- region of activation temperature of enclosure interior where meeting twin-stage spraying steam device are not less than 800
Degree；The amount for the water vapour that lower spraying steam device sprays into, will meet the enclosure interior between twin-stage spraying steam device and fire grate device
Cooling zone temperature is not higher than 300 degree.
As being further improved to the coal quality particle gasifying electricity generation or heat supply co-producing active carbon device, fire grate device
It is driven by supporting track, furnace grate support, fire grate orifice plate and outside structure composition, fire grate orifice plate is placed in the rack slot on furnace grate support
In, furnace grate support lower part surrounding is by rolling bearing rolling support on supporting track；Supporting track is fixed on housing bottom
In rack；The center dead axle of furnace grate support and the main support beam being fixed on the rack are rotatablely connected；The frame lower part of furnace grate support
For the toothing engaged with the driving gear in outer drive mechanism.
As being further improved to the coal quality particle gasifying electricity generation or heat supply co-producing active carbon device, air extractor
Include the cylinder of the arrangement aspirating hole positioned at enclosure interior, aspirating hole aperture is less than coal quality particle；The upper and lower ends of cylinder are distinguished
It is connected with shell by sealing plate, the combustible gas communicated with pumping wind turbine is provided on the shell between two sealing plates and is exported.Most
Good, cylinder is built into for refractory brick, and aspirating hole aperture is 0.8 times of coal quality granular size, and aspirating hole perforated area is circle on cylinder
The 35-45% of tube inner surface area.
The beneficial effects of the utility model：
Coal quality particle is sent into the gasified reverse between air extractor and feed auger of upper part of the housing by feed auger
Area is answered, air is introduced gasification reaction area by air inlet and provided in right amount for the present apparatus by the pumping wind turbine after being exported by combustible gas
Gasifying agent, since the calorific value of coal is high, the temperature in gasification reaction area is also relatively high, and gasification reaction area temperature is controlled in 500-
800 degree.The combustible gas generated that gasifies is sent into steam boiler by being evacuated wind turbine extraction furnace body simultaneously.Pyrocarbon after gasification is immediately
Micro- region of activation where twin-stage spraying steam device is fallen into, twin-stage spraying steam device quantitatively sprays into vapor（To ensure micro- region of activation
Temperature be advisable not less than 800 degree）, priming reaction occurs under the action of steam for pyrocarbon, while generating a small amount of combustible gas
It is extracted out together by air extractor.The micro- activated material of coal quality particle after micro- activation then falls into twin-stage spraying steam device and fire grate device
Between cooling zone.Due to the steam that twin-stage spraying steam device sprays into, the micro- activated material of coal quality particle gradually cools down in cooling zone
To 300 degree hereinafter, again by fire grate device, go out charcoal spiral discharge be sent into activation furnace carry out activation production activated carbon.Fire grate device
Go out charcoal according to the even intensity of reaction.The steam outward supplying heat or driving steam turbine power generation that steam boiler generates, part is steamed
Vapour is sent into activation furnace and is activated to the micro- activated material of coal quality particle.
From fig. 9, it can be seen that the nitrogen adsorption isotherm of coal quality granular activated carbon belongs toType, BET specific surface area
1297.045m2/ g, in relative pressure P/P0Less than 0.01, adsorbance sharply increases, and shows that the suction-operated of monolayer is larger,
The internal capillary of coal quality granular activated carbon is flourishing, and as relative pressure continues growing, adsorbance also continues to increase, desorption curve and
There is hysteresis loop among adsorption curve, shows that coal quality particle charcoal through micro- activation and reactivation, forms certain mesoporous.
From fig. 10 it can be seen that the pore-size distribution of coal quality granular activated carbon is to be less than based on the apertures below 2.5nm, it is average
Aperture is 2.4nm, and the hole of 2nm or so is the abundantest, and there are one smaller peak, tables by 8nm on pore size distribution curve or so
There are a certain amount of mesoporous in bright activated carbon.
The characteristics of the utility model：
1）, by twin-stage spraying steam device not only realized it is micro- activation but also effectively prevent the burning of charcoal to lose.
The present apparatus breaks through the design feature of traditional uniflow gas stove and down-draft type gasifying furnace, and combustible gas is produced from centre,
And organically combine gasification with micro- priming reaction, realize charcoal gas coproduction.
2）, by System of Rotating about Fixed Axis formula fire grate device, realize the rotation of fire grate orifice plate, realize the equal of the micro- activated material of coal quality particle
Even whereabouts.
3）, the present apparatus bottom be equipped with and go out charcoal spiral with cooling jacket, to be passed through water in cooling jacket cooled down, real
The cooling and smooth blanking of existing charcoal.
4）, pyrocarbon thermally decomposed in gasification reaction area, the hot combustion gas of generation leads to steam boiler burning through air extractor and supplies
Heat makes reaction zone be in micro-vacuum state, is conducive to the formation of coal quality carbon surface hole, and particle charcoal is double through gasification installation lower part
Grade steam explosion device carries out micro- activation, the micro- activated material of coal quality particle after micro- activation, and iodine sorption value 250-320mg/g compares table
Area 250-300m2/ g, volatile matter 10-18%, yield 60-70%.
The beneficial effects of the utility model：The utility model is a kind of coal quality particle gasifying electricity generation or heat supply co-producing active carbon
New equipment（Traditional coal quality granular activated carbon production product only has activated carbon, product single）, empty using coal quality particle as raw material
Gas carries out charcoal gas coproduction technique technology as gasifying agent, using gasification furnace, generates hot combustion gas and is sent directly into steam without purification
Boiler combustion heat supply, steam boiler externally for steam or can drive steam turbine power generation；Meanwhile the pyrocarbon after gasification is through gasification
The micro- activated material of coal quality particle is obtained after the micro- activation in the micro- region of activation in lower part of stove, helical feed to activation furnace produces activity by discharging
Charcoal.Activation is carried out to the micro- activated material of coal quality particle in some vapor feeding activation furnace that steam boiler generates and prepares high-specific surface area
Activated carbon realizes the coal quality particle work without coal quality particle gasifying electricity generation, heat supply coproduction high-specific surface area under the conditions of external heat source
Property charcoal.
The coal quality granular activated carbon of the utility model coproduction high-specific surface area while power generation and heat supply solves traditional coal quality
Production process of activated carbon charing pollution is big, activates high energy consumption, when than traditional coal quality carbonized material large specific surface area, reduction priming reaction
Between and energy consumption, make full use of coal raw materials pyrolysis generate energy, improve total energy approach efficiency, significantly improve production effect
Rate and economic benefit.
Description of the drawings
Fig. 1 is the schematic diagram of gasification furnace；
Fig. 2 is the schematic diagram of intermediate air extractor；
Fig. 3 is the vertical view of Fig. 2；
Fig. 4 is the schematic diagram of upper spraying steam device；
Fig. 5 is the vertical view of Fig. 4；
Fig. 6 is the schematic diagram of fire grate device；
Fig. 7 is the vertical view of fire grate orifice plate etc..
Fig. 8 is coal quality particle gasifying electricity generation or the flow chart of heat supply co-producing active carbon method.
Fig. 9 is nitrogen adsorption-desorption curve figure using the coal quality granular activated carbon of present apparatus production.
Figure 10 is the graph of pore diameter distribution using the coal quality granular activated carbon of present apparatus production.
In figure, 1 it is stone device, 2 is air inlet（Gasifying agent import）, 3 be coal quality particle hopper, 4 be feed auger, 5 be
Gas outlet, 6 be air extractor, 7 be upper spraying steam device, 8 be lower spraying steam device, 9 be fire grate device, 10 go out charcoal cooling spiral shell
Rotation 11 is refractory brick, 12 is aspirating hole, 13 is shell, 14 is main air inlet coil pipe, 15 is punching branch pipe, 16 is furnace grate support, 17
It is fire grate orifice plate, 18 be rolling bearing, 19 be gear ring, 20 be fire grate transmission mechanism, 21 be main support beam, 22 is center dead axle,
23 be supporting track, and 61 be cylinder, and 62 be sealing plate.
Specific implementation mode
Gasification furnace shown in Figure 1 is equipped with air inlet 2, by the stone device of decelerating motor drive rotation in case top
1, the speed reducer of stone device 1 is fixed on gasification installation head cover, and stone device top is fixed on head cover, and lower part is inserted into charging spiral shell
The gasification reaction area of the side of screwing off, upper part of the housing is equipped with connected coal quality particle hopper 3 and feed auger 4；Housing central section is provided with
The air extractor 6 of combustible gas is provided with inspection hole on air extractor（Open whether peep hole has damage when for overhauling）；Device
The micro- region of activation in lower part is provided with the twin-stage spraying steam device being made of upper spraying steam device 7 and lower spraying steam device 8；Micro- region of activation
Lower part be provided with fire grate device 9, the bottom of shell is equipped with out charcoal spiral 10.It is the sealing charcoal with cooling jacket to go out charcoal spiral
Go out charcoal cooling spiral, is collected into the cooling micro- activated material of coal quality particle.
Compares figure 2,3 is to be evenly arranged aspirating hole 12 on the cylinder being built by N blocks refractory brick 11 in air extractor 6,
Aperture is 0.8 times of coal quality granular size, and perforated area is the 40% of cylindrical inner surface area；The upper and lower ends of cylinder 61
It is connected respectively with shell by sealing plate 62, sealing plate isolates cylindrical outer and enclosure interior space.Between two sealing plates
Shell on be provided with pumping wind turbine communicate combustible gas outlet 5.Gasify generate combustible gas under the action of outer draft by
It is uniformly extracted out in aspirating hole 12.
Referring to Fig. 4,5, the micro- region of activation in device lower part is provided with two-stage spraying steam device.Upper spraying steam device 7 is by main air inlet
Coil pipe 14 and n roots punching branch pipe 15 form, and punching branch pipe 15 is evenly arranged on main air inlet coil pipe 14, and branch pipe 15 stretches into shell
Part be evenly arranged the hole of diameter 3-5mm, steam is uniformly sprayed by the hole on branch pipe by micro- region of activation.According to micro- region of activation
The spraying steam amount of the upper spraying steam device of temperature adjustment realizes micro- activation of its pyrocarbon.Lower spraying steam device 8 is filled with upper spraying steam
7 identical structures are set, the spraying steam amount of lower spraying steam device is adjusted also according to the temperature of cooling zone.
Referring to Fig. 6,7, the fire grate device of the lower part of micro- region of activation setting is charcoal component, mainly by furnace grate support 16,
The outer actuating unit composition of fire grate orifice plate 17, rolling bearing 18, gear ring 19, fire grate transmission mechanism 20 and stove.
In the limiting slot on fire-grating frame 16 that n block fire grates orifice plate 17 is directly placed, stove can be replaced according to coal quality granular size
Round plate 17, fire grate orifice plate quantity and punching size are determined according to stove diameter and raw material size.Furnace grate support 16 centrally through
Bearing is set between center dead axle 22 and the main support beam 21 being fixed on the rack.16 outer rim of furnace grate support passes through rolling bearing 18
On supporting track 23, supporting track 23 is fixed in the rack of housing bottom rolling support.The frame lower part of furnace grate support connects
It is connected to gear ring 19, the outer actuating unit of stove drives gear ring 19 by driving gear, realize stove by the transmission of fire grate transmission mechanism 20
The micro- activated material of coal quality particle is discharged with the rotation of center dead axle 22 for round plate 17.
Coal quality particle gasifying electricity generation shown in Figure 8 or heat supply co-producing active carbon method flow diagram, go out the outlet of charcoal spiral
It is communicated with the material inlet of activation furnace；The air outlet of pumping wind turbine is communicated with the fuel gas inlet of steam boiler；The steaming of steam boiler
Vapor outlet connects four branches, and a branch is communicated with the steam inlet of activation furnace, and a branch passes through pressure-relief valve, regulating valve and two
Main air inlet coil pipe communicates, and a branch outward supplying heat a, branch is communicated with the steam inlet of steam turbine.From the discharge port of activation furnace
The coal quality granular activated carbon after the activation of activated stove out passes through acid dip pickle pickling, water washing device water tank, dry dress successively
Set dry, breaker crushing, screening plant sieves to obtain coal quality granular activated carbon finished product.
It is arranged using lifting：
The coal quality particle gasifying electricity generation or heat supply co-producing active carbon technique of 3MW and 3MW or more：Coal quality grain forming column
Shape, diameter 1-8mm, length 3-30mm, moisture 20% hereinafter, through feed auger be delivered to gasification furnace carry out charcoal gas coproduction,
By pyrolytic gasification control key reaction area temperature at 500-800 DEG C.Pyrocarbon thermally decomposes in gasification reaction area, and hot combustion gas is through taking out
Device of air leads to steam boiler burning, and steam boiler generates medium pressure steam（385 DEG C, 4.2Mpa）Push steam turbine hair
Electricity, steam turbine discharge expense steam waste heat are used for heating.Twin-stage steam spray of the high-temperature particle charcoal through gasification furnace lower part after gasification
Bleed steam device carries out micro- activation, iodine sorption value 320mg/g, specific surface area 298.64m2/ g, volatile matter 15%, yield 60-
70%.The micro- activated material of coal quality particle after micro- activation, then through dialling the outer actuating unit of charcoal device, rotary fire grate and stove, fire grate Rotating with Uniform is real
Existing continuous discharge is delivered to rotary activated furnace into the spiral cooler of sealing, the steam generated using steam boiler and work
Change the flue gas that reaction generates to be activated, 900-1000 DEG C of activation temperature, soak time 1-1.5h, then through cooling, pickling, water
It the techniques such as washes, dry, being crushed, sieving, obtaining finished product coal quality granular activated carbon, yield 60-70%, iodine sorption value 1350mg/g, than
Surface area 1297.045m2/ g, pore-size distribution is to be less than based on 2nm micropores, average pore size 2.4nm, total hole volume 0.80cm3/g。
3MW coal quality particle gasifying electricity generations or heat supply co-producing active carbon technique consume 20,000 tons of coal quality particle charcoal year, generate electricity 21,000,000 degree in year
（Or 100,000 tons of steam or more）, produce about 0.70 ten thousand tons of coal quality granular activated carbon per year.
The process program of the utility model is carried out using coal quality particle as raw material using gasification furnace using pyrolytic gasification technology
Charcoal gas joint production process new technology, hot combustion gas are gas fired-boiler heat supply without purification directly burning, can externally be steamed for steam or drive
Steam turbine power generation；The coal quality particle gasification charcoal of coproduction simultaneously prepares active carbon with high specific surface area under afterheat steam activation, realizes
Activated carbon without coal quality particle gasifying electricity generation, heat supply coproduction high-specific surface area under the conditions of external heat source.
Claims (6)
1. a kind of coal quality particle gasifying electricity generation or heat supply co-producing active carbon device, including gasification furnace, steam boiler, activation furnace；Institute
Gasification furnace is stated to include shell, stone device, feed auger, fire grate device, air extractor, go out charcoal spiral；In the head cover of case top
It is equipped with air inlet, stone device, upper part of the housing side is equipped with feed auger；Stone device lower part is inserted into below feed auger, shell
Fire grate device is arranged in body bottom；It is charcoal spiral below fire grate device；Housing central section is provided with the air extractor of combustible gas, special
Sign is：The gasification furnace further includes twin-stage spraying steam device, and two steam-injections up and down are provided between air extractor and fire grate device
The twin-stage spraying steam device of vapour device composition；The outlet for going out charcoal spiral is communicated with the material inlet of activation furnace；Air extractor goes out
Air port is communicated with the fuel gas inlet of steam boiler；The steam inlet phase that the steam (vapor) outlet of steam boiler passes through a branch and activation furnace
It is logical, it is communicated by another branch outward supplying heat or with the steam inlet of steam turbine；
Upper and lower spraying steam apparatus structure is identical, includes the main air inlet coil pipe communicated with the steam (vapor) outlet of the steam boiler and more
Root communicates with main air inlet coil pipe and extend into the punching branch pipe composition of enclosure interior.
2. coal quality particle gasifying electricity generation according to claim 1 or heat supply co-producing active carbon device, it is characterized in that：It is also wrapped
Include acid dip pickle, water washing device, drying device, breaker, screening plant, the coal quality granular activated carbon after activated stove activation
It sieves to obtain by acid dip pickle pickling, water washing device water tank, drying device drying, breaker crushing, screening plant successively
Coal quality granular activated carbon finished product.
3. coal quality particle gasifying electricity generation according to claim 1 or heat supply co-producing active carbon device, it is characterized in that：The work
Change stove is rotary activated furnace.
4. coal quality particle gasifying electricity generation according to claim 1 or heat supply co-producing active carbon device, it is characterised in that：Fire grate
Device is by supporting track, furnace grate support, fire grate orifice plate and is driven structure composition outside, and fire grate orifice plate is placed on furnace grate support
In rack slot, furnace grate support lower part surrounding is by rolling bearing rolling support on supporting track；Supporting track is fixed on shell bottom
In the rack in portion；The center dead axle of furnace grate support and the main support beam being fixed on the rack are rotatablely connected；The frame of furnace grate support
Lower part is the toothing engaged with the driving gear in outer drive mechanism.
5. coal quality particle gasifying electricity generation according to claim 1 or heat supply co-producing active carbon device, it is characterised in that：Pumping
Device includes the cylinder of the arrangement aspirating hole positioned at enclosure interior, and aspirating hole aperture is less than coal quality particle；The upper and lower ends of cylinder
It is connected respectively with shell by sealing plate, the combustible gas communicated with pumping wind turbine is provided on the shell between two sealing plates and is gone out
Mouthful.
6. coal quality particle gasifying electricity generation according to claim 5 or heat supply co-producing active carbon device, it is characterised in that：Cylinder
It is built into for refractory brick, aspirating hole aperture is 0.8 times of coal quality granular size, and aspirating hole perforated area is cylinder inner surface on cylinder
The 35-45% of area.
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| CN201721215602.4U CN207684896U (en) | 2017-09-21 | 2017-09-21 | A kind of coal quality particle gasifying electricity generation or heat supply co-producing active carbon device |
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| CN201721215602.4U CN207684896U (en) | 2017-09-21 | 2017-09-21 | A kind of coal quality particle gasifying electricity generation or heat supply co-producing active carbon device |
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ID=62988152
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913212A (en) * | 2018-08-14 | 2018-11-30 | 朋仁锋 | A kind of coal chemical industry gasification furnace |
| CN109133058A (en) * | 2018-10-12 | 2019-01-04 | 安仁县福安净水材料有限公司 | A kind of production equipment and method of active carbon |
| CN113149010A (en) * | 2021-06-07 | 2021-07-23 | 山西华青环保股份有限公司 | Device for preparing novel coal-based activated carbon as neutralizer |
-
2017
- 2017-09-21 CN CN201721215602.4U patent/CN207684896U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913212A (en) * | 2018-08-14 | 2018-11-30 | 朋仁锋 | A kind of coal chemical industry gasification furnace |
| CN109133058A (en) * | 2018-10-12 | 2019-01-04 | 安仁县福安净水材料有限公司 | A kind of production equipment and method of active carbon |
| CN113149010A (en) * | 2021-06-07 | 2021-07-23 | 山西华青环保股份有限公司 | Device for preparing novel coal-based activated carbon as neutralizer |
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