CN102311827A - Pulverized coal and semicoke hybrid coal and preparation method thereof - Google Patents
Pulverized coal and semicoke hybrid coal and preparation method thereof Download PDFInfo
- Publication number
- CN102311827A CN102311827A CN201110192728A CN201110192728A CN102311827A CN 102311827 A CN102311827 A CN 102311827A CN 201110192728 A CN201110192728 A CN 201110192728A CN 201110192728 A CN201110192728 A CN 201110192728A CN 102311827 A CN102311827 A CN 102311827A
- Authority
- CN
- China
- Prior art keywords
- coal
- semicoke
- mixed type
- brown
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention belongs to the technical field of coal chemical industry, and specifically relates to a preparation method of a pulverized coal and semicoke hybrid coal through moulding of coal pyrolysis semicoke. The pulverized coal and semicoke hybrid coal is prepared by mixing, stirring compacting and moulding semicoke and brown coal in a ratio of 0.5-1. According to the invention, the moulding preparation of the pulverized coal and semicoke hybrid coal solves a raise dust problem during individual transportation of semicoke, a problem of incapability of individual brown coal long distance transportation as well as a problem of low calorific value of common molded coal. The pulverized coal and semicoke hybrid coal prepared by mixing and moulding of brown coal and semicoke can be combusted, with a high combustion utilization efficiency and reduced energy waste and environmental pollution.
Description
Technical field
The invention belongs to technical field of coal chemical industry, be specifically related to the method that the moulding of coal cracking semicoke prepares the coal tar mixed type coal.
Background technology
Brown coal are produced through the pyrolysis of low temperature brown coal solid heat carrier method in the process of semicoke, coal tar oil and gas, with producing a large amount of product semicokes.
The brown coal of China generally have characteristics such as lower calorific value, high-moisture, high ash content, high volatile, and brown coal easy-weathering spontaneous combustion simultaneously is not suitable for long-distance transport, and the application region scope is very limited.The semicoke calorific value that the brown coal pyrolysis produces improves a lot than former brown coal calorific value, and is broken but the brown coal pyrolytic process can collapse, and produces a large amount of coke breezes, because its granularity is less, ash content is higher, is prone to airborne dust in loading and unloading and the transportation, and long-distance transport utilizes very not convenient.。
Summary of the invention
The objective of the invention is to overcome above-mentioned not enough problem; A kind of coal tar mixed type coal is provided; Adopt the preparation of coal cracking semicoke and coal dust mixing moulding; Not only solve airborne dust problem in the independent transportation of semicoke, but also solved the problem that the independent transportation of brown coal can not be transported at a distance, also solved common moulded coal calorific value problem of lower simultaneously.Another object of the present invention provides a kind of preparation method of coal tar mixed type coal, and technology is simple, and the moulded coal of production has HS and high heating value concurrently.
The present invention realizes that the technical scheme that above-mentioned purpose adopts is: a kind of coal tar mixed type coal is 0.5～1 mixed stirring pressing and moulding by brown coal and semicoke according to the coking coal ratio.
Said semicoke adopts self low temperature brown coal solid heat carrier method pyrolysis char.
The preparation method of a kind of coal tar mixed type coal of the present invention: at first broken, damping to the raw material brown coal, with the brown coal after handling and semicoke according to coking coal than the mixed that is 0.5～1, stir after compression moulding had both obtained the coal tar mixed type coal.
Said fragmentation: the break process process of raw material brown coal, the raw material brown coal are handled particle diameter less than 6mm.
Said damping: the brown coal after the fragmentation are carried out drying treatment, handle to the brown coal moisture content be 10-30%.
Said compacting is meant carries out extrusion forming under the 60-180MPa forming pressure.
Coal tar mixed type coal of the present invention; Prepare the coal tar mixed type coal through moulding and not only solved airborne dust problem in the independent transportation of semicoke, but also solved the problem that the independent transportation of brown coal can not be transported at a distance, also solved common moulded coal calorific value problem of lower simultaneously.The two mixing moulding of brown coal and semicoke prepares reignition utilization behind the coal tar mixed type coal, the utilising efficiency of not only burning height, and reduced the waste of the energy relatively and to the pollution of environment.
Technology of the present invention is reasonable, and simple easy handling is reasonable like particle size after cracking, and wherein briquette molding moisture is the important factor that influences intensity behind the briquette molding, and the moisture of raw coal comprises inherent moisture and free moisture.Moisture is the sticker and the lubricant of moulding, help the sticker that reduces internal friction, serve as the coal intergranular thereby suitable moisture can make the coal intergranular be easy to move, but excess moisture can influence the approaching of coal grain, thereby influence the intensity of moulded coal.So need damping that its moisture is adjusted, Fig. 1 is seen in concrete influence.
The own cohesiveness of semicoke that the pyrolysis of brown coal solid heat carrier method produces is relatively poor, and no matter how molding technological condition changes, and all can't embark on journey separately.Brown coal self moulding separately descends with addition of the semicoke rear formability to some extent.Semicoke content is very crucial to the influence of coal and semicoke mixing moulding effect thereof, and moisture makes semicoke can carry out mixing moulding as sticker in brown coal wherein and the brown coal, and shaping strength is as shown in Figure 2 with the semicoke content in the mixing moulding.
Said compacting is meant the compaction curve analysis of basis to the coal tar mixed type coal of raw materials used coal, chooses and carries out extrusion forming under the better suited forming pressure.The present invention has realized energy-conservation, the consumption reduction and the target of cleaningization of production process indirectly.
Description of drawings:
Fig. 1 is that shaping strength of the present invention is with moisture content change figure.
Fig. 2 is that shaping strength of the present invention is with semicoke content figure.
Embodiment:
Further narrate coal tar mixed type coal provided by the invention and preparation method thereof below in conjunction with embodiment.
Embodiment 1-2
After brown coal process tramp iron separator deironing earlier; Send into four toothed roll crushers (also can be other type disintegrating apparatus or combination) that have counterpunch board it is carried out fragmentation; Be crushed to less than 6mm, ball milling (also can be equipment or the combination that other types are regulated granularity) is regulated granularity.Broken typical size-grade distribution such as table 1,
Size-grade distribution after certain brown coal of table 1 are pulverized
Brown coal particle after the fragmentation adopts about the dry adjusting of rotating drum dryer (also can be other type drying plant or combination) brown coal moisture to 20%.Adopt the solid heat carrier method pyrolysis installation to prepare the low temperature pyrogenation semicoke.Brown coal after the damping are mixed by certain mass ratio with semicoke; The pressure pressed that goes up at 60-180MPa at four-column type oil pressure pressing machine (also can be other type molding device) becomes the coal tar mixed type coal, and specification is the cylinder (also can be other specification mixed type coal) of the high 20-30mm of diameter 50mm.
Coal tar mixed type coal dropping strength that obtains and cold pressing strength and preparation condition parameter thereof are seen table 2.
Table 2 coal tar mixed type coal dropping strength and cold pressing strength and preparation condition parameter list thereof
| Title | Semicoke content/% | Moisture content/% | Forming pressure/MPa | Dropping strength/% | Cold pressing strength/MPa |
| Instance 1 coal tar mixed | 20 | 20 | 110 | 79.79 | 11.25 |
| Instance 2 coal tar mixed | 20 | 25 | 140 | 42.88 | 10.06 |
Embodiment 3-8
Under embodiment 1 processing condition identical with 2, adopt different semicoke additions (10%-40%) preparations coal tar mixed type coal, its concrete semicoke addition and the dropping strength and the cold pressing strength that make the coal tar mixed type coal are seen table 3.
Table 3 coal tar mixed type coal dropping strength and cold pressing strength and semicoke thereof add scale
| Title | Semicoke content | Dropping strength | Cold pressing |
| Instance | |||
| 3 coal tar mixed | 10 | 80.81 | 13.44 |
| | 20 | 73.89 | 12.11 |
| | 20 | 79.79 | 11.25 |
| | 30 | 46.25 | 8.1 |
| Instance 7 coal tar | 40 | 18.58 | 5.25 |
| Instance 8 coal tar mixed | 50 | 0 | 3.0 |
Claims (6)
1. coal tar mixed type coal, it is characterized in that: it is 0.5～1 mixed stirring pressing and moulding by brown coal and semicoke according to the coking coal ratio.
2. a kind of coal tar mixed type coal according to claim 1 is characterized in that: said semicoke adopts self low temperature brown coal solid heat carrier method pyrolysis char.
3. the preparation method of a coal tar mixed type coal is characterized in that: at first broken, damping to the raw material brown coal, with the brown coal after handling and semicoke according to coking coal than the mixed that is 0.5～1, stir after compression moulding had both obtained the coal tar mixed type coal.
4. the preparation method of a kind of coal tar mixed type coal according to claim 3 is characterized in that: said fragmentation: the break process process of raw material brown coal, the raw material brown coal are handled particle diameter less than 6mm.
5. the preparation method of a kind of coal tar mixed type coal according to claim 3 is characterized in that: said damping: the brown coal after the fragmentation are carried out drying treatment, handle to the brown coal moisture content be 10-30%.
6. the preparation method of a kind of coal tar mixed type coal according to claim 3 is characterized in that: said compacting is meant carries out extrusion forming under the 60-180MPa forming pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110192728A CN102311827A (en) | 2011-07-11 | 2011-07-11 | Pulverized coal and semicoke hybrid coal and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110192728A CN102311827A (en) | 2011-07-11 | 2011-07-11 | Pulverized coal and semicoke hybrid coal and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102311827A true CN102311827A (en) | 2012-01-11 |
Family
ID=45425401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110192728A Pending CN102311827A (en) | 2011-07-11 | 2011-07-11 | Pulverized coal and semicoke hybrid coal and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102311827A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753650A (en) * | 2016-12-21 | 2017-05-31 | 北京神雾环境能源科技集团股份有限公司 | A kind of preparation method of formed coke |
| CN106947564A (en) * | 2017-03-23 | 2017-07-14 | 宁夏中润工贸有限公司 | A kind of clean type coal and its production method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1903717A (en) * | 2006-08-01 | 2007-01-31 | 长春惠工净化工业有限公司 | Production method of desulfur denitrate dust collecting active coke |
| CN101070498A (en) * | 2006-05-09 | 2007-11-14 | 梁刚 | Method for preparing shaped-coal using coal or charcoal as raw material and adding additives |
| RU2376342C1 (en) * | 2008-07-09 | 2009-12-20 | Сергей Романович Исламов | Briquetting method of semi-coke |
| CN101709880A (en) * | 2009-11-10 | 2010-05-19 | 中国五环工程有限公司 | Combustion power generating process of lignite processing and upgrading long-distance transportation power plant boiler |
-
2011
- 2011-07-11 CN CN201110192728A patent/CN102311827A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070498A (en) * | 2006-05-09 | 2007-11-14 | 梁刚 | Method for preparing shaped-coal using coal or charcoal as raw material and adding additives |
| CN1903717A (en) * | 2006-08-01 | 2007-01-31 | 长春惠工净化工业有限公司 | Production method of desulfur denitrate dust collecting active coke |
| RU2376342C1 (en) * | 2008-07-09 | 2009-12-20 | Сергей Романович Исламов | Briquetting method of semi-coke |
| CN101709880A (en) * | 2009-11-10 | 2010-05-19 | 中国五环工程有限公司 | Combustion power generating process of lignite processing and upgrading long-distance transportation power plant boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753650A (en) * | 2016-12-21 | 2017-05-31 | 北京神雾环境能源科技集团股份有限公司 | A kind of preparation method of formed coke |
| CN106947564A (en) * | 2017-03-23 | 2017-07-14 | 宁夏中润工贸有限公司 | A kind of clean type coal and its production method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Deshannavar et al. | Production and characterization of agro-based briquettes and estimation of calorific value by regression analysis: An energy application | |
| CN110257575B (en) | Process for preparing carbide for blast furnace coal injection by treating agricultural and forestry waste based on hydrothermal reaction | |
| Chen et al. | Renewable energy from agro-residues in China: Solid biofuels and biomass briquetting technology | |
| Adeleke et al. | Physical and mechanical characteristics of composite briquette from coal and pretreated wood fines | |
| KR102205450B1 (en) | Solid fuelization system and method using excrement of livestock as the main row material | |
| KR101198895B1 (en) | Device and method for drying coal for coke oven | |
| CN102191096A (en) | Biomass briquette, especially biomass briquette without binder | |
| CN102586529A (en) | Rotary hearth furnace iron-making method utilizing biomass carbon-containing pellet to serve as raw material | |
| Balraj et al. | Potential use of biomass and coal-fine waste for making briquette for sustainable energy and environment | |
| CN106635217A (en) | Formed coke and preparation method thereof | |
| CN104004561B (en) | A kind of brown coal upgrading binding agent and preparation method thereof and its application | |
| CN102311827A (en) | Pulverized coal and semicoke hybrid coal and preparation method thereof | |
| Sithole et al. | A review of the combined torrefaction and densification technology as a source of renewable energy | |
| RU127068U1 (en) | TECHNOLOGICAL LINE FOR THE PRODUCTION OF FUEL BRIQUETTES | |
| RU2484125C1 (en) | Method of making fuel briquettes from biomass | |
| CN111663035A (en) | Use method of composite carbon block for sintering | |
| Zhu et al. | Combustion Characteristics of Cattle Manure and Pulverized Coal Co-firing under Oxy-Fuel Atmosphere in Non-Isothermal and Isothermal Conditions. | |
| KR101031933B1 (en) | Method of manufacturing briquettes using alpha starch | |
| CN107353953A (en) | A kind of method that coal powder filled modification and grading technology prepare water coal semicoke slurry | |
| CN100567466C (en) | A kind of production method of moulded coal | |
| CN104893749B (en) | A kind of revolving bed coal catalysis pyrolysis method and system | |
| CN212924904U (en) | Blue charcoal system of low order fine coal shaping dry distillation production type | |
| CN103074139B (en) | Upgrading method for molding semicokes produced through pyrolyzing water-rich lignite | |
| CN206279177U (en) | The system that a kind of utilization pyrolysis char prepares formed coke | |
| CN102952600A (en) | Pressure gasifier briquette and preparation method and device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120111 |