CN202346955U - Coke making equipment by using pulverized coal - Google Patents
Coke making equipment by using pulverized coal Download PDFInfo
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- CN202346955U CN202346955U CN2011205114424U CN201120511442U CN202346955U CN 202346955 U CN202346955 U CN 202346955U CN 2011205114424 U CN2011205114424 U CN 2011205114424U CN 201120511442 U CN201120511442 U CN 201120511442U CN 202346955 U CN202346955 U CN 202346955U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses coke making equipment by using pulverized coal. The equipment comprises a pulverized coal semi-coke pyrolyzing furnace, wherein the pyrolyzing furnace is respectively provided with a furnace material inlet, a material adding and distributing region, a coal gas collecting region, a coal gas dust filtering belt, a pulverized coal pre-heating belt, a coal gas dispersing region, a pulverized coal pyrolyzing region, and a cooling and coke discharging region. A method is as follows: coke making can be carried out on pulverized coal with the grain diameter of less than 20 mm and the method comprises the following steps of: distributing materials, pre-heating, filtering dust, pyrolyzing the pulverized coal, collecting coal gas and discharging coke. According to the coke making equipment by using the pulverized coal, the coke making is carried out on the pulverized coal with the grain diameter of less than 20 mm and the pulverized coal is uniformly pyrolyzed; and the coal gas generating by pyrolyzing can be smoothly discharged and generated coke oil is clean and does not contain the dust. According to the coke making equipment by using the pulverized coal, the ascending hot coal gas is used for pre-heating the pulverized coal and descending semi-coke is used for pre-heating cold air and the cold gas, so that the heat energy can be sufficiently utilized and the aim of saving energy and reducing emission is achieved.
Description
Technical field
The utility model relates to a kind of fine coal coke making apparatus
Background technology
Semicoke is claimed blue charcoal again, is the flammable solid product by coal low-temperature pyrolysis gained.Coal removes the sulphur and the coal gas of pyrolysis water, tar, part in the fast pyrogenation process.The productive rate of raw coal system semicoke is about 50%～70% of feed coal quality.
The semicoke look is deceived porous, and staple is carbon, ash content and volatile matter.Its ash oontent depends on the raw material ature of coal, about 5%～20% (quality) of volatile content.Compare with coke, volatile content is high, and porosity is big and physical strength is low.Has stronger reactive behavior with carbon monoxide, steam or oxygen.Be good high heat value smokeless fuel, mainly as industry or domestic fuel, also be used for synthetic gas, calcium carbide production etc., the reductive agent when smelting as copper mine or phosphorus ore etc. on a small quantity is in addition also as coke making and coal blending.
Semicoke contains the calorific value more higher than coal body.The grindability index of semicoke, reactivity and incendivity are all good than coal, and therefore, semicoke is the sintering materials that replace anthracitic blast furnace ideal fuel injection and Iron And Steel Plant.
No matter existing coal semicoke pyrolysis oven is internal heat type or external-heat, and the granularity of the raw coal that uses is all required between 20mm-80mm; And the following fine coal of 20mm; Reason such as little owing to the gap, that ventilation property is poor, flame breakthrough power is not enough or thermal energy conduction is not smooth is used to make Jiao and can causes the temperature of same coal seam different sites unbalanced, and pyrolysis is inhomogeneous; Cause portioned product burning, portioned product underburnt, quality is unstable; Simultaneously, the coal gas after the pyrolysis also can't be discharged smoothly.In addition, coal gas is carried dust secretly and is overflowed, and causes tar and dust to break away from, and influences the tar quality.
The utility model content
The utility model technical issues that need to address just are to overcome the defective of prior art; A kind of fine coal coke making apparatus is provided; It uses the fine coal system of particle diameter below 20mm burnt, and pulverized coal pyrolysis is balanced, and the coal gas that pyrolysis produced is discharge and dust and tar separation smoothly.
For addressing the above problem, the utility model adopts following technical scheme:
The utility model provides a kind of fine coal coke making apparatus; Comprise fine coal semicoke pyrolysis oven, said pyrolysis oven is respectively the furnace charge inlet from top to bottom, discharged of the coke in the district in feed in raw material cloth district, coal gas collecting region, gas dust transition band, fine coal preheating zone, coal gas diverging region, pulverized coal pyrolysis district and cooling.
Said pyrolysis oven top is the furnace charge inlet, and the furnace charge inlet is equipped with and adds truck.
Said reinforced cloth district is provided with multiple tracks bifurcated and tapered fabric construction.
Said coal gas collecting region is provided with a plane net trellis gas collection umbrella, and being provided with a plane net trellis below the gas collection umbrella, to disperse umbrella be the coal gas diverging region.
Said gas dust transition band is arranged at the gas collection umbrella and disperses between the umbrella; Coal gas collecting region, gas dust transition band and coal gas diverging region constitute the fine coal preheating zone jointly.
Said pulverized coal pyrolysis district is the internal heat type structure; Burner hearth is a coking chamber; Be provided with a plurality of internal partition walls in the coking chamber coking chamber is divided into a plurality of parts, be provided with air line and gas line in the internal partition wall between coking chamber, and on the internal partition wall limit, be provided with the mixing burner to coking chamber; Be provided with the staggered up and down baffle plate of setting up of multiple tracks on coking chamber inwall and the internal partition wall outer wall respectively, said baffle plate is swash plate or set square, mixes burner and is located at the baffle plate below.
Said pulverized coal pyrolysis district is the external-heat structure; Burner hearth is a coking chamber; Be provided with many rows and the isolated combustion chamber of coking chamber in the coking chamber; Coking chamber is divided into a plurality of parts by the combustion chamber, is provided with the staggered up and down baffle plate of setting up of multiple tracks on coking chamber inwall and outer wall of combustion chamber and the coking chamber sidewall respectively, and said baffle plate is swash plate and set square.
Every row combustion chamber is made up of the gas compartment that multilayer separates from bottom to top; Pulverized coal pyrolysis district and cooling are discharged of the coke and are separated, are connected through gas pipeline between the gas compartment of distinguishing; Be in the discharge of the coke left and right two ends of every layer of gas compartment in district of pulverized coal pyrolysis district or cooling together and be respectively arranged with the passage that is connected with upper and lower layer gas compartment; Make whole row combustion chamber form the gas passage that a spirrillum rises from bottom to top; Pulverized coal pyrolysis district bottom gas compartment is provided with combustion gas or air inlet, and the gas compartment in pulverized coal pyrolysis district is provided with the mixing burner, and the top layer gas compartment is provided with the flue of discharged gas fume.
Said cooling is discharged of the coke to distinguish and is arranged at below the pulverized coal pyrolysis district, cools off the bottom, district of the discharging of the coke pushing machine is installed.
The fine coal system Jiao method of the utility model is following fine coal system Jiao of 20mm for adopting particle diameter, comprises the following steps:
1), cloth: fine coal is packed into from fine coal semicoke pyrolysis furnace roof, distinguishes fork and tapered fabric construction, uniform distribution through reinforced cloth;
2), preheating: fine coal free-falling from top to bottom in fine coal semicoke pyrolysis oven interacts with up heating gas, to the fine coal preheating;
3), pulverized coal pyrolysis:
The internal heat type semi-coke oven:
When adopting the internal heat type structure, in the pulverized coal pyrolysis district, inboard wall of burner hearth and coking chamber outer wall and coking chamber two sidewalls have the multiple tracks baffle plate, form the space in the descending process of fine coal, for the coal gas and the air of jetting have into been created the combustion chamber, have been pulverized coal pyrolysis production heat energy; Increase the alternative area of heat energy and fine coal, the fine coal of this space periphery has been heated, reached the temperature that pulverized coal pyrolysis needs; Because baffle plate is a staggered designs up and down, forms constantly when fine coal is descending and rolls, stirs, or propagandize process hotly, makes fine coal even heating, pyrolysis, makes the semicoke quality equalization stable of production;
The external-heat semi-coke oven:
When adopting the external-heat structure; Set up separately coking chamber and combustion chamber in the burner hearth; Baffle plate in the coking chamber though do not play the effect of combustion chamber, has played the effect that increases heat energy and the alternative area of fine coal, fine coal is rolled, stirs or propagandizes hotly equally; Make fine coal even heating, pyrolysis, make the semicoke quality equalization stable of production;
4), coal gas is collected:
A, fine coal produce certain clearance through in the staggered descending process of setting up of baffle plate, are the up passage that provides of the heating gas that produces in the pulverized coal pyrolysis;
B, pulverized coal pyrolysis district because of having set up the multilayer plate washer therebetween, dwindle the coal seam between plate washer greatly, have reduced the resistance that coal gas penetrates;
C, set up a plane net trellis coal gas again in the coal gas gas collection umbrella district of upper of furnace body and pulverized coal pyrolysis zone and disperse umbrella,, increase ventilation property to reduce the individual layer thickness of coal seam; Make coal gas balancedly through the dust-filtering band simultaneously.At coal gas gas collection umbrella with disperse and set up a gas dust transition band between the umbrella; The thickness of coal seam of this transition band and temperature can make coal gas and dust separation; When the coal gas of band dust up through this when zone; Can play filteration, make the coal gas that passes through clean, the high-quality tar of output dust;
5), discharge of the coke: be advanced into the cooling zone under the semicoke, with the air that gets into during with the coal gas indirect contact, semicoke with heat energy by air and coal gas absorption, semicoke progressively cools; Air and coal gas are by preheating, thereby the usage quantity of reduction coal gas plays a role in energy saving.
The utility model uses the fine coal system of particle diameter below 20mm burnt, in the burnt process of the fine coal system that fundamentally guaranteed the fine coal equilibrium heat, pyrolysis, gas dust filters, and the coal gas overflow channel is unobstructed, thereby fine coal system Jiao is carried out smoothly.
And the utility model carries out preheating through utilizing up heating gas to fine coal, and descending semicoke carries out preheating to freezing air and coal gas, and heat energy is made full use of, and reaches the purpose of energy-saving and emission-reduction.
Description of drawings
Fig. 1 adopts the structural representation of internal heat type structure for the utility model.
Fig. 2 is the side-view of Fig. 1.
Fig. 3 adopts the structural representation of external-heat structure for the utility model.
Fig. 4 is the side-view of Fig. 3.
Embodiment
Like Fig. 1, shown in Figure 2; The utility model provides a kind of fine coal coke making apparatus; Comprise fine coal semicoke pyrolysis oven 1, said pyrolysis oven is respectively furnace charge inlet 2 from top to bottom, discharged of the coke in district 9 in feed in raw material cloth district 3, coal gas collecting region 4, gas dust transition band 5, fine coal preheating zone 6, coal gas diverging region 7, pulverized coal pyrolysis district 8 and cooling.
Said pyrolysis oven top is the furnace charge inlet, and the furnace charge inlet is equipped with and adds truck 10.
Said reinforced cloth district is provided with multiple tracks bifurcated and tapered fabric construction 11.
Said coal gas collecting region is provided with a plane net trellis gas collection umbrella 12, is provided with a plane net trellis coal gas below the gas collection umbrella and disperses umbrella 13 and be the coal gas diverging region.
Said gas dust transition band is arranged at the gas collection umbrella and disperses between the umbrella; Coal gas collecting region, gas dust transition band and coal gas diverging region constitute the fine coal preheating zone jointly.
Said pulverized coal pyrolysis district is the internal heat type structure; Burner hearth is a coking chamber 14; Be provided with a plurality of internal partition walls 21 in the coking chamber coking chamber is divided into a plurality of parts, be provided with air line 15 and gas line 16 in the internal partition wall between coking chamber, and be provided with on the internal partition wall limit, to coking chamber and mix burner 17; Be provided with the staggered up and down baffle plate of setting up 18 of multiple tracks on coking chamber inwall and the internal partition wall outer wall respectively, said baffle plate is swash plate or set square, mixes burner and is located at the baffle plate below.
Said cooling is discharged of the coke to distinguish and is arranged at below the pulverized coal pyrolysis district, cools off the bottom, district of the discharging of the coke pushing machine 19 is installed.
Like Fig. 3, shown in Figure 4; The utility model provides a kind of fine coal coke making apparatus; Comprise coal semicoke pyrolysis oven 1, said pyrolysis oven is respectively furnace charge inlet 2 from top to bottom, discharged of the coke in district 9 in feed in raw material cloth district 3, coal gas collecting region 4, gas dust transition band 5, fine coal preheating zone 6, coal gas diverging region 7, pulverized coal pyrolysis district 8 and cooling.
Said pyrolysis oven top is the furnace charge inlet, and the furnace charge inlet is equipped with and adds truck 10.
Said reinforced cloth district is provided with multiple tracks bifurcated and tapered fabric construction 11.
Said coal gas collecting region is provided with a plane net trellis gas collection umbrella 12, is provided with a plane net trellis coal gas below the gas collection umbrella and disperses umbrella 13 and be the coal gas diverging region.
Said gas dust transition band is arranged at the gas collection umbrella and disperses between the umbrella; Coal gas collecting region, gas dust transition band and coal gas diverging region constitute the fine coal preheating zone jointly.
Said pulverized coal pyrolysis district is the external-heat structure; Burner hearth is a coking chamber 14; Be provided with many rows and the isolated combustion chamber 20 of coking chamber in the coking chamber; Coking chamber is divided into a plurality of parts by the combustion chamber, is provided with the staggered up and down baffle plate of setting up 18 of multiple tracks on coking chamber inwall and outer wall of combustion chamber and the coking chamber sidewall respectively, and said baffle plate is swash plate and set square.
Like Fig. 3, shown in Figure 4; Every row combustion chamber is made up of the gas compartment 22 that multilayer separates from bottom to top; Pulverized coal pyrolysis district and cooling are discharged of the coke and are separated, are connected through gas pipeline 23 between the gas compartment of distinguishing; Be in the discharge of the coke left and right two ends of every layer of gas compartment in district of pulverized coal pyrolysis district or cooling together and be respectively arranged with the passage 24 that is connected with upper and lower layer gas compartment, make whole row combustion chamber form the gas passage that spirrillum rises respectively on the discharging of the coke the district with cooling in the pulverized coal pyrolysis district, pulverized coal pyrolysis district bottom gas compartment is provided with combustion gas or air inlet 25; The gas compartment in pulverized coal pyrolysis district is provided with and mixes burner 26, and the top layer gas compartment is provided with the flue 27 of discharged gas fume.
Said cooling is discharged of the coke to distinguish and is arranged at below the pulverized coal pyrolysis district, cools off the bottom, district of the discharging of the coke pushing machine 19 is installed.
The utility model provides a kind of fine coal system Jiao method simultaneously, and it is following fine coal system Jiao of 20mm that said method adopts particle diameter, comprises the following steps:
1), cloth: fine coal is packed into from fine coal semicoke pyrolysis furnace roof, distinguishes fork and tapered fabric construction, uniform distribution through reinforced cloth;
2), preheating: fine coal free-falling from top to bottom in coal semicoke pyrolysis oven interacts with up heating gas, to the fine coal preheating;
3), pulverized coal pyrolysis:
The internal heat type semi-coke oven:
When adopting the internal heat type structure, in the pulverized coal pyrolysis district, inboard wall of burner hearth and coking chamber outer wall and coking chamber inwall have the multiple tracks baffle plate, form the space in the descending process of fine coal, for the coal gas and the air of jetting have into been created the combustion chamber, have been pulverized coal pyrolysis production heat energy; Increase the alternative area of heat energy and fine coal, the fine coal of this space periphery has been heated, reached the temperature that pulverized coal pyrolysis needs; Because baffle plate is a staggered designs up and down, forms constantly when fine coal is descending and rolls, stirs, or propagandize process hotly, makes fine coal even heating, pyrolysis, makes the semicoke quality equalization stable of production;
The external-heat semi-coke oven:
When adopting the external-heat structure; Set up separately coking chamber and combustion chamber in the burner hearth; Baffle plate in the coking chamber though do not play the effect of combustion chamber, has played the effect that increases heat energy and the alternative area of fine coal, fine coal is rolled, stirs or propagandizes hotly equally; Make fine coal even heating, pyrolysis, make the semicoke quality equalization stable of production;
4), coal gas is collected:
A, fine coal produce certain clearance through in the staggered descending process of setting up of baffle plate, are the up passage that provides of the heating gas that produces in the pulverized coal pyrolysis;
B, pulverized coal pyrolysis district because of having set up the multilayer plate washer therebetween, dwindle the coal seam between plate washer greatly, have reduced the resistance that coal gas penetrates;
C, set up a plane net trellis coal gas again in the coal gas gas collection umbrella district of upper of furnace body and pulverized coal pyrolysis district and disperse umbrella,, increase ventilation property to reduce the individual layer thickness of coal seam; Make coal gas balancedly through the dust-filtering band simultaneously.Between coal gas gas collection umbrella and vent hood, set up a gas dust transition band; The thickness of coal seam of this transition band and temperature can make coal gas and dust separation; When the coal gas of band dust up through this when zone; Can play filteration, make the coal gas that passes through clean, the high-quality tar of output dust;
5), discharge of the coke: be advanced into the cooling zone under the semicoke, with the air that gets into during with the coal gas indirect contact, semicoke with heat energy by air and coal gas absorption, semicoke progressively cools; Air and coal gas are by preheating, thereby the usage quantity of reduction coal gas plays a role in energy saving.
The utility model uses the fine coal system of particle diameter below 20mm burnt, in the burnt process of the fine coal system that fundamentally guaranteed the fine coal equilibrium heat, pyrolysis, gas dust filters, and the coal gas overflow channel is unobstructed, thereby fine coal system Jiao is carried out smoothly.
And the utility model carries out preheating through utilizing up heating gas to fine coal, and descending semicoke carries out preheating to freezing air and coal gas, and heat energy is made full use of, and reaches the purpose of energy-saving and emission-reduction.
What should explain at last is: obviously, the foregoing description only be for explain clearly that the utility model does for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being amplified out thus or change still are among the protection domain of the utility model.
Claims (9)
1. fine coal coke making apparatus; Comprise fine coal semicoke pyrolysis oven, it is characterized in that: said pyrolysis oven is respectively the furnace charge inlet from top to bottom, discharged of the coke in the district in feed in raw material cloth district, coal gas collecting region, gas dust transition band, fine coal preheating zone, coal gas diverging region, pulverized coal pyrolysis district and cooling.
2. fine coal coke making apparatus as claimed in claim 1 is characterized in that: said pyrolysis oven top is the furnace charge inlet, and the furnace charge inlet is equipped with and adds truck.
3. fine coal coke making apparatus as claimed in claim 2 is characterized in that: said reinforced cloth district is provided with multiple tracks bifurcated and tapered fabric construction.
4. fine coal coke making apparatus as claimed in claim 3 is characterized in that: said coal gas collecting region is provided with a plane net trellis coal gas gas collection umbrella, is provided with a plane net trellis coal gas below the gas collection umbrella and disperses umbrella.
5. fine coal coke making apparatus as claimed in claim 4 is characterized in that: said gas dust transition band is arranged at coal gas gas collection umbrella and coal gas is dispersed between the umbrella; Coal gas collecting region, gas dust transition band and coal gas diverging region constitute the fine coal preheating zone jointly.
6. fine coal coke making apparatus as claimed in claim 5; It is characterized in that: said pulverized coal pyrolysis district is the internal heat type structure; Burner hearth is a coking chamber; Be provided with a plurality of internal partition walls in the coking chamber coking chamber is divided into a plurality of parts, be provided with air line and gas line in the internal partition wall between coking chamber, and on the internal partition wall limit, be provided with the mixing burner to coking chamber; Be provided with the staggered up and down baffle plate of setting up of multiple tracks on coking chamber inwall and the internal partition wall outer wall respectively, said baffle plate is swash plate or set square, mixes burner and is located at the baffle plate below.
7. fine coal coke making apparatus as claimed in claim 5; It is characterized in that: said pulverized coal pyrolysis district is the external-heat structure; Burner hearth is a coking chamber, is provided with many rows and the isolated combustion chamber of coking chamber in the coking chamber, and coking chamber is divided into a plurality of parts by the combustion chamber; Be provided with the staggered up and down baffle plate of setting up of multiple tracks on coking chamber inwall and outer wall of combustion chamber and the coking chamber sidewall respectively, said baffle plate is swash plate and set square.
8. fine coal coke making apparatus as claimed in claim 7; It is characterized in that: every row combustion chamber is made up of the gas compartment that multilayer separates from bottom to top; Pulverized coal pyrolysis district and cooling are discharged of the coke and are separated, are connected through gas pipeline between the gas compartment of distinguishing; Be in the discharge of the coke left and right two ends of every layer of gas compartment in district of pulverized coal pyrolysis district or cooling together and be respectively arranged with the passage that is connected with upper and lower layer gas compartment, make whole row combustion chamber form the gas passage that a spirrillum rises from bottom to top, pulverized coal pyrolysis district bottom gas compartment is provided with combustion gas or air inlet; The gas compartment in pulverized coal pyrolysis district is provided with the mixing burner, and the top layer gas compartment is provided with the flue of discharged gas fume.
9. like claim 6 or 7 or 8 described fine coal coke making apparatus, it is characterized in that: said cooling is discharged of the coke to distinguish and is arranged at below the pulverized coal pyrolysis district, cools off the bottom, district of the discharging of the coke pushing machine is installed.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205114424U CN202346955U (en) | 2011-12-09 | 2011-12-09 | Coke making equipment by using pulverized coal |
| PCT/CN2012/086212 WO2013083092A1 (en) | 2011-12-09 | 2012-12-07 | Pulverized coal drying apparatus and drying method |
| PCT/CN2012/086211 WO2013083091A1 (en) | 2011-12-09 | 2012-12-07 | Pulverized coal coke-producing apparatus and coke-producing method |
| PCT/CN2012/086214 WO2013083093A1 (en) | 2011-12-09 | 2012-12-07 | Pulverized coal gasification apparatus and gasification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205114424U CN202346955U (en) | 2011-12-09 | 2011-12-09 | Coke making equipment by using pulverized coal |
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| Publication Number | Publication Date |
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| CN202346955U true CN202346955U (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205114424U Expired - Fee Related CN202346955U (en) | 2011-12-09 | 2011-12-09 | Coke making equipment by using pulverized coal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492432A (en) * | 2011-12-09 | 2012-06-13 | 新疆美特镁业有限公司 | Pulverized coal coking equipment and method |
| WO2013083091A1 (en) * | 2011-12-09 | 2013-06-13 | Chen Huajin | Pulverized coal coke-producing apparatus and coke-producing method |
| WO2013083093A1 (en) * | 2011-12-09 | 2013-06-13 | Chen Huajin | Pulverized coal gasification apparatus and gasification method |
| WO2013083092A1 (en) * | 2011-12-09 | 2013-06-13 | Chen Huajin | Pulverized coal drying apparatus and drying method |
-
2011
- 2011-12-09 CN CN2011205114424U patent/CN202346955U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492432A (en) * | 2011-12-09 | 2012-06-13 | 新疆美特镁业有限公司 | Pulverized coal coking equipment and method |
| WO2013083091A1 (en) * | 2011-12-09 | 2013-06-13 | Chen Huajin | Pulverized coal coke-producing apparatus and coke-producing method |
| WO2013083093A1 (en) * | 2011-12-09 | 2013-06-13 | Chen Huajin | Pulverized coal gasification apparatus and gasification method |
| WO2013083092A1 (en) * | 2011-12-09 | 2013-06-13 | Chen Huajin | Pulverized coal drying apparatus and drying method |
| WO2013082922A1 (en) * | 2011-12-09 | 2013-06-13 | 新疆美特镁业有限公司 | Pulverized coal coking equipment and method |
| CN103160291A (en) * | 2011-12-09 | 2013-06-19 | 新疆美特镁业有限公司 | Powdered coal coking device and powdered coal coking method |
| CN103160291B (en) * | 2011-12-09 | 2016-06-08 | 新疆美特镁业有限公司 | Fine coal coke making apparatus and make burnt method |
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Granted publication date: 20120725 Termination date: 20141209 |
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