CN101955824A - Complete two-stage slurry production equipment of water-coal-slurry and gasified water-coal-slurry by using low-rank coal fuel - Google Patents
Complete two-stage slurry production equipment of water-coal-slurry and gasified water-coal-slurry by using low-rank coal fuel Download PDFInfo
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- 239000002002 slurry Substances 0.000 title claims abstract description 137
- 239000003245 coal Substances 0.000 title claims abstract description 123
- 239000000446 fuel Substances 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000003250 coal slurry Substances 0.000 title abstract description 23
- 230000002441 reversible effect Effects 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 113
- 238000012216 screening Methods 0.000 claims description 13
- 238000010009 beating Methods 0.000 claims description 12
- 239000006148 magnetic separator Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 abstract description 14
- 238000002309 gasification Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000004537 pulping Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000004939 coking Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- -1 oscillating feeder Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The invention relates to complete two-stage slurry production equipment of water-coal-slurry and gasified water-coal-slurry by using low-rank coal fuel, mainly used for fuel for industrial boilers and power station boilers and fuel for gasification furnaces. The complete two-stage slurry production equipment for water-coal-slurry and gasified water-coal-slurry from low-rank coal fuel comprises a low-rank coal raw material warehouse (1), a vibration feeder (2), a type conveyer (4), a crusher (5) of a reversible counterattack hammer type, a hopper lifter (6), a low-rank coal middle warehouse (7), a measuring belt machine (10), a spiral feeder (11), a high-concentration water-coal-slurry ball mill (12), a water-coal-slurry vibration sieve (13), a water-coal-slurry buffer tank (14), a water-coal-slurry filter (16), a stability treatment tank (17), a Homogenizing tank (19) and a slurry storage tank (21), wherein a bypass is divided from a discharge port of the high-concentration water-coal-slurry ball mill (12), is a fine slurry preparation system and comprises a rotary vibration sieve (27), a front inlet tank (28) of a fine grinding machine, a medium-concentration ultrafine vertical mill (31) and a slurry storage tank (29) of the fine grinding machine. The invention can improve the product concentration of the water-coal-slurry.
Description
(1) technical field
The present invention relates to a kind of coal water slurry complete production unit.Especially relate to a kind of two sections slurrying low-rank coal fuel coal water slurries and gasified coal water slurry complete production unit.Be mainly used in the fuel and the Coal Chemical Industry industry vapourizing furnace fuel of Industrial Boiler and power boiler burning.
(2) background technology
Conventional coal water slurry be by about 69% coal, about 30% water and a small amount of composite additive through ore grinding, mix certain medicament, after filtration, stability is adjusted and technology such as homogeneous slaking is made higher concentration and have the clean fuel of the fluid liquid of certain viscosity.At present, general coal water mixture plant, slurrying coal majority is selected high-quality caking coal for use, but the coking coal resource reserves are few, and price is expensive, can not satisfy the development of coal water slurry industrialization, so water-coal-slurry slurring should be based on the low order coal with coal.Low order coal reserves are big, and low price can improve the economy of coal water slurry with the supply of comparatively cheap price guarantee slurrying with coal.
Pulping technique is one of water-coal-slurry slurring technology, perfect pulping process plays crucial effects for the cost of quality that improves coal water slurry and reduction coal water slurry, present most slurrying enterprise all adopts a grinding machine high density ore grinding slurrying complete production unit, and this complete production unit mainly comprises the raw coal feed bin, oscillating feeder, rubber conveyer, reversible counter beating hammer type disintegrator, chapelet, intermediate bin, the measuring belt machine, screw feeder, the high-concentration coal-water slurry ball mill, the coal water slurry vibratory screening apparatus, the coal water slurry surge tank, the coal water slurry colour strainer, stability is handled bucket, homogeneous jar and slurry can.Adopt this complete production unit technical process simple, the coking coal of suitable easy pulping, but low-rank coal slurrying complete production unit is also had following deficiency:
1, because the ore grinding raw material is shorter in the high-concentration coal-water slurry ball mill ore grinding time, after entering the surge tank stirring, the outlet of high-concentration coal-water slurry ball mill can only be the coal water slurry primary products, the thixotropy of coal water slurry a little less than, yielding stress is lower, cause the rheological of coal water slurry relatively poor, the stability of coal water slurry is lower.
2, viscosity in aqueous coal slurries is higher in the high-concentration coal-water slurry ball mill barrel, and velocity of flow is lower in the high-concentration coal-water slurry ball mill, ore grinding power consumption height, and the coal slurry grain size distribution is unreasonable, and the coal water slurry product concentration is lower, and the low-rank coal water coal slurry concentration can only reach about 60%.
(3) summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, a kind of two sections slurrying low-rank coal fuel coal water slurries and gasified coal water slurry complete production unit that can improve the coal water slurry product concentration is provided.
The object of the present invention is achieved like this: a kind of two sections slurrying low-rank coal fuel coal water slurries and gasified coal water slurry complete production unit, comprise the former feed bin of low-rank coal, oscillating feeder, rubber conveyer, reversible counter beating hammer type disintegrator, chapelet, the low-rank coal intermediate bin, the measuring belt machine, screw feeder, the high-concentration coal-water slurry ball mill, the coal water slurry vibratory screening apparatus, the coal water slurry surge tank, the coal water slurry colour strainer, stability is handled bucket, homogeneous jar and slurry can, described oscillating feeder is arranged at the rubber conveyer feed end, and place the former feed bin of low-rank coal below, the rubber conveyer top is provided with the suspension belt magnetic separator, the rubber conveyer discharge end places reversible counter beating hammer type disintegrator top, reversible counter beating hammer type disintegrator discharge port places chapelet opening for feed top, the chapelet discharge port links to each other with low-rank coal intermediate bin opening for feed, low-rank coal intermediate bin discharge port links to each other with the measuring belt machine, the measuring belt machine links to each other with the screw feeder machine inlet capable, the screw feeder discharge port links to each other with high-concentration coal-water slurry ball mill opening for feed, high-concentration coal-water slurry ball mill discharge port links to each other with coal water slurry vibratory screening apparatus opening for feed, coal water slurry vibratory screening apparatus discharge port links to each other with the coal water slurry surge tank, the coal water slurry surge tank links to each other with the coal water slurry colour strainer, coal water slurry colour strainer discharge port is handled the bucket opening for feed with stability and is linked to each other, stability is handled the bucket discharge port and is linked to each other with homogeneous jar opening for feed, and homogeneous jar discharge port links to each other with the slurry can opening for feed; It is characterized in that: tell a bypass at high-concentration coal-water slurry ball mill discharge port, this bypass is the screened stock preparation system, comprise and revolve the sieve that shakes, atomizer mill is gone into preceding jar, middle ultra-fine vertical mill of concentration and atomizer mill slurry can, revolving the sieve opening for feed that shakes links to each other with described high-concentration coal-water slurry ball mill discharge port, this revolves shake sieve discharge port and atomizer mill go into before a jar opening for feed link to each other, a jar discharge port linked to each other with the ultra-fine vertical mill opening for feed of middle concentration before atomizer mill was gone into, the middle ultra-fine vertical mill discharge port of concentration links to each other with atomizer mill slurry can opening for feed, and atomizer mill slurry can discharge port inserts high-concentration coal-water slurry ball mill feeding mouth.
The invention has the beneficial effects as follows:
By telling a bypass at high-concentration coal-water slurry ball mill discharge port, this bypass comprises that revolving the sieve that shakes, atomizer mill goes into preceding jar, the ultra-fine vertical mill of middle concentration and atomizer mill slurry can, tell from high-concentration coal-water slurry ball mill exit end 8～15% primary water coal slurry through overwinding shake screening from after, the thick slurry of≤50um enters the middle ultra-fine vertical mill of concentration, thick slurry is added the water secondary carry out the ultra-fine vertical barreling mill of middle concentration, the ultra-thin slurries median size of coming out is at 12～1gum, and concentration 50% is mobile fabulous.Ultra-thin slurries is after returning high-concentration coal-water slurry ball mill feeding mouth to pipeline, carry out mixed grinding with raw coal, reduce viscosity in aqueous coal slurries in the high-concentration coal-water slurry ball mill barrel greatly, accelerated velocity of flow in the high-concentration coal-water slurry ball mill, for the high-concentration coal-water slurry ball mill has added lubricant, reduce the ore grinding power consumption, also optimized the coal slurry grain size distribution simultaneously, improved the coal water slurry quality product.By two sections slurrying, promptly one section is adopted the ultra-fine vertical levigate mill of concentration in high-concentration coal-water slurry ball mill corase grind and the two sections employings, and finally the coal water slurry product can reach concentration 64～65.5%, compares slurrying concentration with traditional process equipment and has improved 5 percentage points.Reach stability 〉=60d, ash fusion point 〉=1250 ℃, granularity 300～320 orders, the country of viscosity 1200Mpa.S 1～2 grade of merchantable fuels slurry standard, as long as and the gasified coal water slurry size indicator reaches 200 orders, can also increase substantially output so in same category of device, produce the gasification slurry.Power consumption can reduce by 20% simultaneously.
(4) description of drawings
Fig. 1 is the overall structure synoptic diagram of the present invention's two sections slurrying low-rank coal fuel coal water slurry and gasified coal water slurry complete production unit.
Reference numeral among the figure:
The former feed bin 1 of low-rank coal, oscillating feeder 2, hang belt magnetic separator 3, rubber conveyer 4, reversible counter beating hammer type disintegrator 5, chapelet 6, low-rank coal intermediate bin 7, rod lock 8, manual push-pull valve 9, measuring belt machine 10, screw feeder 11, high-concentration coal-water slurry ball mill 12, coal water slurry vibratory screening apparatus 13, coal water slurry surge tank 14, spiral pump 15, coal water slurry colour strainer 16, stability is handled bucket 17, spiral pump 18, homogeneous jar 19, spiral pump 20, slurry can 21, spiral pump 22, magnetic flow meter 25, spiral pump 26, revolve the sieve 27 that shakes, jar 28 before atomizer mill is gone into, atomizer mill slurry can 29, spiral pump 30, the middle ultra-fine vertical mill 31 of concentration, magnetic flow meter 32.
(5) embodiment
Referring to Fig. 1, Fig. 1 is the overall structure synoptic diagram of the present invention's two sections slurrying low-rank coal fuel coal water slurry and gasified coal water slurry complete production unit.As seen from Figure 1, the present invention's two sections slurrying low-rank coal fuel coal water slurry and gasified coal water slurry complete production unit, comprise the former feed bin 1 of low-rank coal, oscillating feeder 2, rubber conveyer 4, reversible counter beating hammer type disintegrator 5, chapelet 6, low-rank coal intermediate bin 7, measuring belt machine 10, screw feeder 11, high-concentration coal-water slurry ball mill 12, coal water slurry vibratory screening apparatus 13, coal water slurry surge tank 14, coal water slurry colour strainer 16, stability is handled bucket 17, homogeneous jar 19, slurry can 21, revolve the sieve 27 that shakes, jar 28 before atomizer mill is gone into, middle ultra-fine vertical mill 31 of concentration and atomizer mill slurry can 29, described oscillating feeder 2 is arranged at rubber conveyer 4 feed ends, and place the former feed bin of low-rank coal 1 below, rubber conveyer 4 tops are provided with and hang belt magnetic separator 3, rubber conveyer 4 discharge ends place reversible counter beating hammer type disintegrator 5 tops, reversible counter beating hammer type disintegrator 5 discharge ports place chapelet 6 opening for feeds top, chapelet 6 discharge ports link to each other with low-rank coal intermediate bin 7 opening for feeds, low-rank coal intermediate bin 7 discharge ports link to each other with measuring belt machine 10, measuring belt machine 10 links to each other with screw feeder 11 opening for feeds, screw feeder 11 discharge ports link to each other with high-concentration coal-water slurry ball mill 12 opening for feeds, high-concentration coal-water slurry ball mill 12 discharge ports are divided into two the tunnel: the one tunnel and link to each other with coal water slurry vibratory screening apparatus 13 opening for feeds, coal water slurry vibratory screening apparatus 13 discharge ports link to each other with coal water slurry surge tank 14, coal water slurry surge tank 14 discharge ports link to each other with coal water slurry colour strainer 16 opening for feeds, coal water slurry colour strainer 16 discharge ports are handled bucket 17 opening for feeds with stability and are linked to each other, stability is handled bucket 17 discharge ports and is linked to each other with homogeneous jar 19 opening for feeds, and homogeneous jar 19 discharge ports link to each other with slurry can 21 opening for feeds; Another Lu Yuxuan sieve 27 opening for feeds that shake link to each other, jar 28 opening for feeds link to each other before revolving shake sieve 27 discharge ports and atomizer mill and going into, jar 28 discharge ports linked to each other with ultra-fine vertical mill 31 opening for feeds of middle concentration before atomizer mill was gone into, middle ultra-fine vertical mill 31 discharge ports of concentration link to each other with atomizer mill slurry can 29 opening for feeds, and atomizer mill slurry can 29 discharge ports link to each other with high-concentration coal-water slurry ball mill 12 opening for feeds.
Low-rank coal is discharged into the former feed bin 1 of low-rank coal by the coal yard shovel loader, enter rubber conveyer 4 through oscillating feeder 2 vibrating feeds, remove impurity such as ironware through hanging belt magnetic separator 3, after by rubber conveyer 4 raw coal being sent into reversible counter beating hammer type disintegrator 5 (this crusher has thick piece impact crushing function and particulate hammer crushing double-click function) fragmentation, particle diameter is at 2～3mm, send into low-rank coal intermediate bin 7 through chapelet 6, broken back coal grain is discharged into measuring belt machine 10 in low-rank coal intermediate bin 7 bottoms, the signal that draws according to measuring belt machine inlet amount, feed back to coal water slurry following-up type automatic material-dispensing system, this system dynamically disposes the water yield under the operating mode automatically, and pharmaceutical quantities, sending into high-concentration coal-water slurry ball mill 12 by screw feeder 11 grinds, this ball mill is a continous way overflow type grinding machine, the long strip shape rod iron that grinding media adopts diameter not wait, discharging-material size≤200 order percent of pass are about 40～50%, primary water coal slurry product 85～92% enters coal water slurry vibratory screening apparatus 13 behind the ball mill discharge end pulp, carrying out thickness separates, larger particles and impurity no longer advance as next procedure, stir through coal water slurry surge tank 14, the adding of stablizer simultaneously, after the coal water slurry stirring, substantially do not precipitate, through spiral pump 15 is sent coal water slurry into coal water slurry colour strainer 16 filter cleaners by pipeline after, handle bucket 17 through stability and carry out the stability levelling, after the 19 homogeneous slakings of homogeneous jar, formed the qualified water coal slurry this moment again.Entering slurry can 21 then stores; Telling 8～15% primary water coal slurry from high-concentration coal-water slurry ball mill 12 exit end in addition shakes after sieve 27 separates through overwinding, the thick slurry of≤50um enters the middle ultra-fine vertical mill 31 of concentration, thick slurry is added the water secondary to carry out high-efficient grinding and grinds through atomizer mill, the ultra-thin slurries median size of coming out is at 12～18um, concentration 50% is mobile fabulous.Ultra-fine water coal carries out circular grinding through return high-concentration coal-water slurry ball mill 12 feeding mouths to pipeline after.
Claims (1)
1. two sections slurrying low-rank coal fuel coal water slurries and gasified coal water slurry complete production unit, comprise the former feed bin of low-rank coal (1), oscillating feeder (2), rubber conveyer (4), reversible counter beating hammer type disintegrator (5), chapelet (6), low-rank coal intermediate bin (7), measuring belt machine (10), screw feeder (11), high-concentration coal-water slurry ball mill (12), coal water slurry vibratory screening apparatus (13), coal water slurry surge tank (14), coal water slurry colour strainer (16), stability is handled bucket (17), homogeneous jar (19) and slurry can (21), described oscillating feeder (2) is arranged at rubber conveyer (4) feed end, and place the former feed bin of low-rank coal (1) below, rubber conveyer (4) top is provided with and hangs belt magnetic separator (3), rubber conveyer (4) discharge end places reversible counter beating hammer type disintegrator (5) top, reversible counter beating hammer type disintegrator (5) discharge port places chapelet (6) opening for feed top, chapelet (6) discharge port links to each other with low-rank coal intermediate bin (7) opening for feed, low-rank coal intermediate bin (7) discharge port links to each other with measuring belt machine (10), measuring belt machine (10) links to each other with screw feeder (11) opening for feed, screw feeder (11) discharge port links to each other with high-concentration coal-water slurry ball mill (12) opening for feed, high-concentration coal-water slurry ball mill (12) discharge port links to each other with coal water slurry vibratory screening apparatus (13) opening for feed, coal water slurry vibratory screening apparatus (13) discharge port links to each other with coal water slurry surge tank (14), coal water slurry surge tank (14) links to each other with coal water slurry colour strainer (16), coal water slurry colour strainer (16) discharge port is handled bucket (17) opening for feed with stability and is linked to each other, stability is handled bucket (17) discharge port and is linked to each other with homogeneous jar (19) opening for feed, and homogeneous jar (19) discharge port links to each other with slurry can (21) opening for feed; It is characterized in that: tell a bypass at high-concentration coal-water slurry ball mill (12) discharge port, this bypass is the screened stock preparation system, comprise and revolve the sieve (27) that shakes, atomizer mill is gone into preceding jar (28), middle ultra-fine vertical mill of concentration (31) and atomizer mill slurry can (29), revolving sieve (27) opening for feed that shakes links to each other with described high-concentration coal-water slurry ball mill (12) discharge port, this revolves shake sieve (27) discharge port and atomizer mill goes into preceding jar of (28) opening for feed and links to each other, atomizer mill is gone into preceding jar of (28) discharge port and is linked to each other with the ultra-fine vertical mill of middle concentration (31) opening for feed, the middle ultra-fine vertical mill of concentration (31) discharge port links to each other with atomizer mill slurry can (29) opening for feed, and atomizer mill slurry can (29) discharge port inserts high-concentration coal-water slurry ball mill (12) feeding mouth.
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| CN 201010273278 CN101955824B (en) | 2010-09-06 | 2010-09-06 | Complete two-stage slurry production equipment of water-coal-slurry and gasified water-coal-slurry by using low-rank coal fuel |
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| CN 201010273278 CN101955824B (en) | 2010-09-06 | 2010-09-06 | Complete two-stage slurry production equipment of water-coal-slurry and gasified water-coal-slurry by using low-rank coal fuel |
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| CN101955824A true CN101955824A (en) | 2011-01-26 |
| CN101955824B CN101955824B (en) | 2013-03-27 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309880A (en) * | 2011-07-08 | 2012-01-11 | 江苏秋林重工股份有限公司 | Water coal slurry filter |
| CN102899109A (en) * | 2012-10-18 | 2013-01-30 | 中煤科工集团武汉设计研究院 | System device for preparing coal water slurry by long-distance pipeline coal transportation |
| CN103184085A (en) * | 2011-12-30 | 2013-07-03 | 兖矿鲁南化肥厂 | Gasified coal-water-slurry preparation process and corresponding production line |
| CN104722237A (en) * | 2015-03-26 | 2015-06-24 | 江苏秋林重工股份有限公司 | Complete production device for combusting coal water slurry |
| CN105885973A (en) * | 2016-06-27 | 2016-08-24 | 中煤科工清洁能源股份有限公司 | Novel coal water slurry preparation method and coal water slurry prepared by using same |
| CN109046722A (en) * | 2018-08-24 | 2018-12-21 | 煤炭科学技术研究院有限公司 | A kind of preparation method of microfine coal |
| CN109628178A (en) * | 2019-02-15 | 2019-04-16 | 陕西陕化煤化工集团有限公司 | A kind of method that rod mill prepares high-concentration coal-water slurry |
| CN111703922A (en) * | 2020-07-09 | 2020-09-25 | 陕西冶金设计研究院有限公司 | Method and device for combined use of low-rank coal conveying, processing and coal storage system |
| CN111849569A (en) * | 2020-06-12 | 2020-10-30 | 安徽鑫固环保股份有限公司 | Device for preparing coal water slurry by using 1-aminoanthraquinone production wastewater and using method thereof |
| CN113770158A (en) * | 2021-09-10 | 2021-12-10 | 中煤科工清洁能源股份有限公司 | Resource utilization method for coal gasification fine ash |
| CN114015478A (en) * | 2021-11-17 | 2022-02-08 | 西安元创化工科技股份有限公司 | A system and method for controlling the concentration and particle size of coal slurry in the process of producing syngas |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309880A (en) * | 2011-07-08 | 2012-01-11 | 江苏秋林重工股份有限公司 | Water coal slurry filter |
| CN103184085A (en) * | 2011-12-30 | 2013-07-03 | 兖矿鲁南化肥厂 | Gasified coal-water-slurry preparation process and corresponding production line |
| CN103184085B (en) * | 2011-12-30 | 2015-04-29 | 兖矿鲁南化肥厂 | Gasified coal-water-slurry preparation process and corresponding production line |
| CN102899109A (en) * | 2012-10-18 | 2013-01-30 | 中煤科工集团武汉设计研究院 | System device for preparing coal water slurry by long-distance pipeline coal transportation |
| CN104722237A (en) * | 2015-03-26 | 2015-06-24 | 江苏秋林重工股份有限公司 | Complete production device for combusting coal water slurry |
| CN105885973A (en) * | 2016-06-27 | 2016-08-24 | 中煤科工清洁能源股份有限公司 | Novel coal water slurry preparation method and coal water slurry prepared by using same |
| CN109046722A (en) * | 2018-08-24 | 2018-12-21 | 煤炭科学技术研究院有限公司 | A kind of preparation method of microfine coal |
| CN109628178A (en) * | 2019-02-15 | 2019-04-16 | 陕西陕化煤化工集团有限公司 | A kind of method that rod mill prepares high-concentration coal-water slurry |
| CN111849569A (en) * | 2020-06-12 | 2020-10-30 | 安徽鑫固环保股份有限公司 | Device for preparing coal water slurry by using 1-aminoanthraquinone production wastewater and using method thereof |
| CN111703922A (en) * | 2020-07-09 | 2020-09-25 | 陕西冶金设计研究院有限公司 | Method and device for combined use of low-rank coal conveying, processing and coal storage system |
| CN111703922B (en) * | 2020-07-09 | 2024-05-31 | 陕西冶金设计研究院有限公司 | Method and device for combining low-rank coal conveying processing and coal storage system |
| CN113770158A (en) * | 2021-09-10 | 2021-12-10 | 中煤科工清洁能源股份有限公司 | Resource utilization method for coal gasification fine ash |
| CN114015478A (en) * | 2021-11-17 | 2022-02-08 | 西安元创化工科技股份有限公司 | A system and method for controlling the concentration and particle size of coal slurry in the process of producing syngas |
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| CN101955824B (en) | 2013-03-27 |
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