CN107653014A - Mining area coal washery continous way coal mud water slurry slurrying outfit and its pulping process - Google Patents
Mining area coal washery continous way coal mud water slurry slurrying outfit and its pulping process Download PDFInfo
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- CN107653014A CN107653014A CN201710966765.4A CN201710966765A CN107653014A CN 107653014 A CN107653014 A CN 107653014A CN 201710966765 A CN201710966765 A CN 201710966765A CN 107653014 A CN107653014 A CN 107653014A
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- 239000003245 coal Substances 0.000 title claims abstract description 131
- 239000002002 slurry Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000005065 mining Methods 0.000 title claims abstract description 28
- 238000004537 pulping Methods 0.000 title claims abstract description 14
- 239000002351 wastewater Substances 0.000 claims abstract description 31
- 230000032683 aging Effects 0.000 claims abstract description 30
- 230000007704 transition Effects 0.000 claims abstract description 19
- 238000005406 washing Methods 0.000 claims abstract description 14
- 230000003139 buffering effect Effects 0.000 claims abstract description 9
- 239000002699 waste material Substances 0.000 claims abstract description 5
- 239000003250 coal slurry Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 239000011343 solid material Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 4
- 239000010866 blackwater Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 230000006870 function Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000035800 maturation Effects 0.000 claims description 3
- 230000005055 memory storage Effects 0.000 claims description 3
- 239000010801 sewage sludge Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 238000010008 shearing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000000498 ball milling Methods 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 230000001351 cycling effect Effects 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000872 buffer Substances 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
- C10L1/326—Coal-water suspensions
Abstract
The invention discloses a kind of mining area coal washery continous way coal mud water slurry slurrying outfit and its pulping process, equipment includes the sequentially filter press of setting, coal slime storehouse, ageing machine, wet type finishing beater, transition slack tank, slurrying ball mill, buffering agitator tank, high Strong shear tank, homogenate curing tank and stokehold circulating tank etc..The largely discarded coal slime cycling and reutilization that the present invention will can obtain after the coal washing of mining area coal washery, and with coal washing waste water as pulping process water, by separating, crushing, being aged, slurrying, after the series of processes such as ball milling and high shear, it is prepared into finite concentration, disclosure satisfy that the coal mud water slurry of the daily combustion needs in mining area, production equipment automates and integrated degree is high, provided a great convenience for the production and living in mining area, the waste of coal resources and the pollution to environment are reduced, improves the utilization rate of environmental quality and resource.
Description
Technical field
The present invention relates to water-coal-slurry preparing technical field, more particularly to a kind of modern design, can make full use of residue
The mining area coal washery continous way coal mud water slurry slurrying outfit and its pulping process of coal slime.
Background technology
For coal slime from coal cleaning process among colliery, including two products of coarse slime and fine coal slurry, coal washing is coal deep processing
One of important procedure, be exactly by raw coal coal slime impurity reject, be characterized in high-moisture, high viscosity, difficulty of transportation, sewage
Yield is big, environmental pollution weight.By coal washing, it can reach and improve Coal Quality and utilization ratio, reduce burning pollutant row
Put.Its coal cleaning process is that mining area coal washery carries raw coal about by one kind after wet type coal washing, washing after cyclone separates
The material of 0.5 ~ 1.5mm fine graineds and soil, the solid low-heat containing 20 ~ 35% moisture content is formed after plate and frame filter press is handled
It is worth fuel.The coal washery of one megaton will produce tens thousand of tons of coal slimes for 1 year, take a large amount of soils and stack, pollute mining area
Environment, and coal slime is a kind of energy source raw material with certain calorific value, its calorific value are about 4000 ~ 4500kacl/kg, Chinese large-sized
Mining area is greatly both needed to heat, can held in current recycling economy and coal enterprise in the north, winter severe cold, production and life
In supervention exhibition, prepare high concentration fuel water-coal-slurry using mining area coal slime and meet that mining area production and life to thermal source demand, reduce ore deposit
Area's environmental pollution has certain realistic meaning.
The content of the invention
For above-mentioned technical problem, the invention provides a kind of mining area coal washery continous way coal mud water slurry slurrying into suit
Standby and its pulping process, the value of coal slime can be given full play to, improve Coal Clean burning quality and mining area coal washing, greatly
Improve the comprehensive utilization ratio of environmental quality and resource.
To realize above-mentioned technical purpose, present invention employs following technical proposal：
A kind of mining area coal washery continous way coal mud water slurry slurrying outfit, it is characterised in that：The press filtration set including order
Machine, coal slime storehouse, metering weigher, ageing machine, wet type finishing beater, transition slack tank, slurrying ball mill, buffering agitator tank, high-strength
Tank, homogenate curing tank and stokehold circulating tank, in addition to wastewater collection pond, waste water tank, pharmacy jar and some conveying screw rod pumps are sheared,
Wherein,
The waste liquid outlet of the filter press is fed sequentially into wastewater collection pond and waste water tank through conveying screw rod pump, filter press mistake
The coal slime solid material obtained after filter is transported in coal slime storehouse, and coal slime storehouse is provided with breaks up for crushing the broken of coal slime solid material
Device；
The material of the discharging opening in the coal slime storehouse conveys material in ageing machine after metering weigher weighing balance weight, waste water tank
The delivery outlet of delivery outlet and pharmacy jar conveys material in ageing machine, and ageing machine is used to cut coal slime, waste water mixture
It is cut into slurry, the charging aperture of the slurry delivery outlet connection wet type finishing beater of ageing machine；
The charging aperture of the discharging opening transition slack tank of the wet type finishing beater, the discharging opening of transition slack tank pass through conveying screw rod pump
The charging aperture of slurrying ball mill is connected, slurry is delivered to buffering agitator tank after slurrying ball mill grinding process, high-strength cut successively
Feeding stokehold circulating tank memory storage is standby after cutting tank and homogenate curing tank processing.
Formula conveyer is scraped preferably, setting to bury between the filter press and coal slime storehouse, is set between coal slime storehouse and ageing machine
Put frequency conversion rubber conveyer and metering weigher.
Preferably, gentle rush between agitator tank of the slurrying ball mill sets coarse filtration vibratory sieve, buffering agitator tank with
Pressure-bearing type filter is set between high Strong shear tank.
Preferably, it is all provided with agitating device in the tank of the transition slack tank and stokehold circulating tank.
The invention also discloses the pulping process of foregoing mining area coal washery continous way coal mud water slurry complete set of equipments, its feature
It is, including following pulping stage：
Step S1, by raw coal, caused coal-sewage sludge blends are separated into coal slime bulk block material after filter press filters after coal washing
And waste water, waste water are stored in standby in waste water tank；
Step S2, will be broken up in the coal slime bulk block material obtained in step S1 feeding coal slime storehouse, break process, by bulk
Type bonds block loosely into granulated or fritter shape material, meets continous way blanking and conveying function of measuring；
Step S3, the coal slime particle obtained in the waste water obtained in step S1 and step S2 is delivered to after ageing machine mixes and cut
Cut, handled into slurry, medicament is added in ageing process and is fully mixed with coal slime；
Step S4, the thick slurry of water-coal-slurry after ageing is sent into wet type finishing beater, primary coal mud water slurry is made, is then store in
In transition slack tank；
Step S5, the primary black water coal in transition slack tank is sent into slurrying ball mill by conveying screw rod pump and fully ground
Mill, has been prepared into certain grain size distribution and certain density water-coal-slurry；
Step S6, water-coal-slurry is sufficiently stirred by being input to after coarse filtration in buffering agitator tank；
Step S7, the water-coal-slurry buffered in agitator tank is subjected to smart filtering, high Strong shear tank is then inputted by conveying screw rod pump
It is middle to carry out high Strong shear；
Step S8, the water-coal-slurry after high Strong shear is input to after carrying out maturation process in homogenate curing tank, obtains directly supplying
Burnt the fuel coal water slurry used, and fuel coal water slurry is pumped into standby in circulating tank by conveying screw rod.
By adopting the above-described technical solution, the present invention has the following technical effect that：A kind of mining area coal washery of the present invention
Continous way coal mud water slurry slurrying outfit and its pulping process, there is rational process equipment to configure for it, can be by coal washing
The largely discarded coal slime cycling and reutilization obtained afterwards, and with coal washing waste water as pulping process water, by it by separating, breaking
After the series of processes such as broken, ageing, slurrying, ball milling and high shear, it is prepared into finite concentration, disclosure satisfy that the daily combustion needs in mining area
Coal mud water slurry, given full play to the value of discarded coal slime, reduced the waste of coal resources and the pollution to environment, greatly
Ground improves the utilization rate of environmental quality and resource.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the structural representation of the present invention.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
Any feature disclosed in this specification, unless specifically stated otherwise, can be equivalent by other or with similar purpose
Alternative features are replaced.I.e., unless specifically stated otherwise, each feature is an example in a series of equivalent or similar characteristics
.
A kind of mining area coal washery continous way coal mud water slurry slurrying outfit as shown in Figure 1, including order setting
Filter press 1, coal slime storehouse 3, metering weigher 5, ageing machine 6, wet type finishing beater 7, transition slack tank 8, slurrying ball mill 9, buffering
Agitator tank 11, high Strong shear tank 13, homogenate curing tank 14 and stokehold circulating tank 15, in addition to wastewater collection pond 18, waste water tank 17,
Pharmacy jar 16 and some conveying screw rod pumps.
As shown in figure 1, in the present embodiment, the waste liquid outlet of filter press 1 is fed sequentially into waste water through conveying screw rod pump and received
Collect in pond 18 and waste water tank 17, the coal slime solid material that filter press 1 obtains after filtering is transported in coal slime storehouse 3, and coal slime storehouse 3 is provided with
For crushing the broken dispersing device of coal slime solid material；The discharging opening in coal slime storehouse 3, the delivery outlet of waste water tank 7 and pharmacy jar 16
Delivery outlet convey material in ageing machine 6, ageing machine 6 is used to carry out mixing ageing, ageing machine to coal slime, waste water mixture
The charging aperture of 6 slurry delivery outlet connection wet type finishing beater 7；The charging aperture of the discharging opening transition slack tank 8 of wet type finishing beater 7,
The discharging opening of transition slack tank 8 connects the charging aperture of slurrying ball mill 9 by conveying screw rod pump, and slurry is successively through slurrying ball mill
9 are delivered to feeding stokehold circulating tank after buffering agitator tank 11, high Strong shear tank 13 and homogenate curing tank 14 are handled after grinding process
15 memory storages are standby.
Set to bury as shown in figure 1, in the present embodiment, between filter press 1 and coal slime storehouse 3 and scrape formula conveyer 2, coal slime storehouse 3 with
Frequency conversion rubber conveyer 4 and metering weigher 5 are set between ageing machine 6, transporting velocity can be adjusted as needed, and can count
The quality of coal slime solid material is measured, is advantageous to production leadtime, management；Slurrying ball mill 9 is gentle rush between agitator tank 11 set it is thick
Filter vibration sieve 10, buffers and pressure-bearing type filter 12 is set between agitator tank 11 and high Strong shear tank 13, can by multiple times of filtration
To filter out larger coal particle and fiber impurity, the particle diameter of water-coal-slurry is controlled；In the tank of transition slack tank 8 and stokehold circulating tank 15
Agitating device is set, and agitating device can effectively prevent from precipitating when water-coal-slurry from placing for a long time in tank.
The invention also discloses the pulping process of foregoing mining area coal washery continous way coal mud water slurry complete set of equipments, including such as
Lower pulping stage：
Step S1, by raw coal, caused coal-sewage sludge blends are separated into after filter press filters and contained comprising higher moisture content after coal washing
The coal slime bulk block material and waste water of amount, waste water is stored in standby in waste water tank；
Step S2, will be broken up in the coal slime bulk block material obtained in step S1 feeding coal slime storehouse, break process, by bulk
Shape bonds block loosely into granulated or fritter shape material, meets continous way blanking and conveying function of measuring；
Step S3, by the coal slime particle obtained in the waste water obtained in step S1 and step S2 be delivered to ageing machine mix shearing,
Medicament is added into slurry processing, in ageing process fully to mix with coal slime；
Step S4, the thick slurry of water-coal-slurry after ageing is sent into wet type finishing beater, primary coal mud water slurry is made, is then store in
In transition slack tank；
Step S5, the primary black water coal in transition slack tank is sent into slurrying ball mill by conveying screw rod pump and fully ground
Mill, has been prepared into certain grain size distribution and certain density water-coal-slurry；
Step S6, thinner water-coal-slurry is buffered in agitator tank by being input to after filtering, be sufficiently stirred；
Step S7, the water-coal-slurry buffered in agitator tank is subjected to coarse filtration, high Strong shear tank is then inputted by conveying screw rod pump
It is middle to carry out high Strong shear；
Step S8, the water-coal-slurry after high Strong shear is input to after carrying out maturation process in homogenate curing tank, obtains directly supplying
Burnt the fuel coal water slurry used, and fuel coal water slurry is pumped into standby in circulating tank by conveying screw rod.
The coal mud water slurry slurrying outfit and its pulping process of the present invention, will can be obtained after the coal washing of mining area coal washery
Largely discarded coal slime cleaning circulations recycle, production pattern is that continous way automation and integrated degree are high, obtained to possess
Certain density coal mud water slurry, it disclosure satisfy that mining area production and worker's life to the demand of thermal source, reduce a large amount of coal slime heaps
Between emptying, the discharge of coal washing sewage is alleviated, reduces environmental pollution, provided a great convenience for the production and living in mining area,
Drastically increase the utilization rate of environmental quality and resource.
The invention is not limited in foregoing embodiment.The present invention, which expands to, any in this manual to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (5)
- A kind of 1. mining area coal washery continous way coal mud water slurry slurrying outfit, it is characterised in that：The pressure set including order Filter (1), coal slime storehouse (3), metering weigher (5), ageing machine (6), wet type finishing beater (7), transition slack tank (8), slurrying ball Grinding machine (9), buffering agitator tank (11), high Strong shear tank (13), homogenate curing tank (14) and stokehold circulating tank (15), in addition to it is useless Water collecting pit (18), waste water tank (17), pharmacy jar (16) and some conveying screw rod pumps, wherein,The waste liquid outlet of the filter press (1) is fed sequentially into wastewater collection pond (18) and waste water tank (17) through conveying screw rod pump In, the coal slime solid material obtained after filter press (1) filtering is transported in coal slime storehouse (3), and coal slime storehouse (3), which are provided with, is used for break up coal The broken dispersing device of mud solid material；The material of the discharging opening of the coal slime storehouse (3) conveys material to ageing machine (6) after metering weigher (5) metering is weighed Interior, the delivery outlet of waste water tank (7) and the delivery outlet of pharmacy jar (16) convey material in ageing machine (6), and ageing machine (6) is used for Coal slime, waste water mixture are carried out to cut into slurry, the charging aperture of the slurry delivery outlet connection wet type finishing beater (7) of ageing machine (6)；The charging aperture of the discharging opening transition slack tank (8) of the wet type finishing beater (7), the discharging opening of transition slack tank (8) pass through The charging aperture of conveying screw rod pump connection slurrying ball mill (9), slurry is delivered to slow after slurrying ball mill (9) grinding process successively It is standby to rush feeding stokehold circulating tank (15) memory storage after agitator tank (11), high Strong shear tank (13) and homogenate curing tank (14) are handled With.
- 2. continous way coal mud water slurry slurrying outfit in mining area coal washery according to claim 1, it is characterised in that：Institute State to set to bury between filter press (1) and coal slime storehouse (3) and scrape formula conveyer (2), set and become between coal slime storehouse (3) and ageing machine (6) Frequency rubber conveyer (4).
- 3. continous way coal mud water slurry slurrying outfit in mining area coal washery according to claim 1, it is characterised in that：Institute State slurrying ball mill (9) gentle rush between agitator tank (11) and coarse filtration vibratory sieve (10) be set, buffering agitator tank (11) with it is high-strength Pressure-bearing type filter (12) is set between shearing tank (13).
- 4. continous way coal mud water slurry slurrying outfit in mining area coal washery according to claim 1, it is characterised in that：Institute State in the tank of transition slack tank (8) and stokehold circulating tank (15) and be all provided with agitating device.
- 5. using the slurrying of any described mining area coal washery continous way coal mud water slurry slurrying complete set of equipments of Claims 1-4 Method, it is characterised in that including following pulping stage：Step S1, by raw coal, caused coal-sewage sludge blends are separated into coal slime bulk block after filter press (1) filtering after coal washing Material and waste water, waste water are stored in standby in waste water tank (17)；Step S2, will be broken up in the coal slime bulk block material obtained in step S1 feeding coal slime storehouse (3), break process, will Bulk type bonds block loosely into granulated or fritter shape material, meets continous way blanking and conveying function of measuring；Step S3, after the coal slime particle obtained in the waste water obtained in step S1 and step S2 being delivered into ageing machine (6) mixing Sheared, handled into slurry, ageing medicament is added in ageing process, is fully mixed with coal slime；Step S4, the thick slurry of water-coal-slurry after ageing is sent into wet type finishing beater (7), primary coal mud water slurry, Ran Houcun is made Storage is in transition slack tank (8)；Step S5, the primary black water coal in transition slack tank (8) is sent into slurrying ball mill (7) by conveying screw rod pump and carried out It is fully ground, is made and has been prepared into certain grain size distribution and certain density water-coal-slurry；Step S6, thinner water-coal-slurry is buffered in agitator tank (11) by being input to after coarse filtration, be sufficiently stirred；Step S7, the water-coal-slurry that will be buffered in agitator tank (11) carries out smart filtering, then inputs high-strength cut by conveying screw rod pump Cut and high Strong shear is carried out in tank (13)；Step S8, the water-coal-slurry after high Strong shear is input to after carrying out maturation process in homogenate curing tank (14), obtaining can be straight The burning water-coal-slurry used for burning is connect, burning water-coal-slurry is pumped into standby in circulating tank (15) by conveying screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710966765.4A CN107653014A (en) | 2017-10-17 | 2017-10-17 | Mining area coal washery continous way coal mud water slurry slurrying outfit and its pulping process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710966765.4A CN107653014A (en) | 2017-10-17 | 2017-10-17 | Mining area coal washery continous way coal mud water slurry slurrying outfit and its pulping process |
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| Publication Number | Publication Date |
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| CN107653014A true CN107653014A (en) | 2018-02-02 |
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ID=61118378
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710966765.4A Pending CN107653014A (en) | 2017-10-17 | 2017-10-17 | Mining area coal washery continous way coal mud water slurry slurrying outfit and its pulping process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113121205A (en) * | 2021-05-14 | 2021-07-16 | 青岛瑞科天晟能源有限公司 | Preparation method of ceramic filler and material transfer device |
| CN113249149A (en) * | 2021-05-24 | 2021-08-13 | 江苏秋林特能装备股份有限公司 | Process for preparing derivative biochar pulp from semi-coke wastewater organic concentrated solution |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101125A (en) * | 2007-07-20 | 2008-01-09 | 山东八一燎原水煤浆有限责任公司 | Coal mud water slurry productive technology |
| CN204529778U (en) * | 2015-04-17 | 2015-08-05 | 江西蓝谷新能源科技有限公司 | A kind of production system preparing coal water slurry |
| CN106085524A (en) * | 2016-05-31 | 2016-11-09 | 神华集团有限责任公司 | The preparation method of gasification water-coal-slurry |
| CN207362163U (en) * | 2017-10-17 | 2018-05-15 | 江苏秋林特能装备股份有限公司 | Mining area coal washery continous way coal mud water slurry slurrying outfit |
-
2017
- 2017-10-17 CN CN201710966765.4A patent/CN107653014A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101125A (en) * | 2007-07-20 | 2008-01-09 | 山东八一燎原水煤浆有限责任公司 | Coal mud water slurry productive technology |
| CN204529778U (en) * | 2015-04-17 | 2015-08-05 | 江西蓝谷新能源科技有限公司 | A kind of production system preparing coal water slurry |
| CN106085524A (en) * | 2016-05-31 | 2016-11-09 | 神华集团有限责任公司 | The preparation method of gasification water-coal-slurry |
| CN207362163U (en) * | 2017-10-17 | 2018-05-15 | 江苏秋林特能装备股份有限公司 | Mining area coal washery continous way coal mud water slurry slurrying outfit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113121205A (en) * | 2021-05-14 | 2021-07-16 | 青岛瑞科天晟能源有限公司 | Preparation method of ceramic filler and material transfer device |
| CN113121205B (en) * | 2021-05-14 | 2022-10-04 | 滕州瑞科天启能源科技有限公司 | Preparation method of ceramic filler and material transfer device |
| CN113249149A (en) * | 2021-05-24 | 2021-08-13 | 江苏秋林特能装备股份有限公司 | Process for preparing derivative biochar pulp from semi-coke wastewater organic concentrated solution |
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Application publication date: 20180202 |
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