CN109486544A - A kind of technique exempted from drying-type mixing coal slime and produce dry moulded coal using it - Google Patents
A kind of technique exempted from drying-type mixing coal slime and produce dry moulded coal using it Download PDFInfo
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- CN109486544A CN109486544A CN201710817382.0A CN201710817382A CN109486544A CN 109486544 A CN109486544 A CN 109486544A CN 201710817382 A CN201710817382 A CN 201710817382A CN 109486544 A CN109486544 A CN 109486544A
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- coal slime
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- 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
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/04—Raw material of mineral origin to be used; Pretreatment thereof
-
- 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
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
- C10L5/08—Methods of shaping, e.g. pelletizing or briquetting without the aid of extraneous binders
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
One kind exempting from drying-type mixing coal slime, it is characterized by: according to parts by weight, the mixing coal slime by 85-95 parts of wet coal slimes, 10-16 parts of purity 75% calcium oxide powder, 8-14 parts of purity form in 75% calcium chloride powder, 4-6 parts of solid sodium hydroxides and 10-16 parts of carbide slags, wherein, the mixed proportion of the calcium oxide powder in the wet coal slime, calcium chloride powder, solid sodium hydroxide and carbide slag is 5:2:1:4.Coal slime of the present invention does not need individually to carry out drying procedure, saves mass energy during producing dry moulded coal using the mixing coal slime.
Description
Technical field
The present invention relates to moulded coal production technical field, specially one kind exempts from drying-type mixing coal slime and produces drying using it
The technique of moulded coal.
Background technique
China is the maximum coal production in the world today and consumption state.Coal preparation plant's slime size is thin, moisture is high, makes many
More coal preparation plant's coal slimes is directly inconvenient using, transport, and is easy to pollution environment, sells very difficult, causes a large amount of
Coal slime overstock, both influenced the normal production of coal preparation plant, at the same have be coal resources serious waste.Therefore, if coal preparation plant
Moulded coal is made in wet coal slime, not only improves transport, saves coal resources, is reduced or avoided and is caused because of the scattered burning of coal slime, transport
The discharge of a large amount of dust and pernicious gas, but be conducive to change coal preparation plant product structure, improve coal preparation plant economic benefit and
Social benefit.With the increasingly raising of environmental requirement, existing wet coal slime, which is generally required, is made pollution relatively by manufacturing procedure
Lesser moulded coal can just come into operation, and the daily middle coal used that burns is also mostly moulded coal, and moulded coal is using wet coal slime as raw material
It is prepared by processes such as coal separation drying, but in existing preparation section, since the water content of wet coal slime is very high, generally
Water content is in 25-30%, and preparing essential during moulded coal is exactly to carry out baking process, and the material quantity one of wet coal slime
As greatly, in terms of ton, the drying of the wet coal slime of high-volume will be using large-scale drying equipment, and puts into a large amount of electric power resource
As support, this drying course will occupy moulded coal and produce extremely big cost, and large batch of drying effect also and is paid no attention to
Think.
Summary of the invention
To solve the above-mentioned problems, exempt from drying-type mixing coal slime the purpose of the present invention is to propose to one kind and done using its production
The technique of dry moulded coal is not needed individually to carry out drying procedure, be saved during producing dry moulded coal using the mixing coal slime
Mass energy.
The technical solution that the present invention is taken to solve the above-mentioned problems are as follows: one kind exempts from drying-type mixing coal slime, feature
It is: according to parts by weight, calcium oxide powder, 8-14 of the mixing coal slime by 85-95 parts of wet coal slimes, 10-16 parts of purity 75%
Part purity is in 75% calcium chloride powder, 4-6 parts of solid sodium hydroxides and 10-16 parts of carbide slags compositions, wherein in the wet coal slime
Calcium oxide powder, calcium chloride powder, solid sodium hydroxide and carbide slag mixed proportion be 5:2:1:4.
According to parts by weight, 1-2 parts of mine tailing is also added in the mixing coal slime.
According to parts by weight, 1-2 parts of soda lime is also added in the mixing coal slime.
Utilize the production technology for exempting from the dry moulded coal of drying-type mixing coal slime production, comprising the following steps:
1) each component is weighed according to above-mentioned parts by weight, calcium oxide powder is successively added into wet coal slime at room temperature, calcium chloride powder, consolidates
Body sodium hydroxide and carbide slag, are mixed evenly, and obtain mixing coal slime；
2) will in mixing coal slime merging production equipment, successively by stirring transmission, rotation is broken, after dehumidifier dedusting up to drying type
Coal.
Compared with prior art, the invention has the following advantages:
First, it is of the present invention to exempt from drying-type mixing coal slime, it joined calcium oxide powder, calcium chloride in traditional wet coal slime
Powder, solid sodium hydroxide and carbide slag make it when producing dry moulded coal, can pass through during being mixed with transmission
The moisture in wet coal slime is largely sucked out for calcium oxide powder, calcium chloride powder, solid sodium hydroxide, when wet coal slime by original 25-30%
Water content it is dry to 10% or so water content, substantially meet the production requirement of dry moulded coal, compared to traditional production routine,
It saves individually to one of degree of wet coal slime drying, and conventional wet coal slime is utilized to produce in dry moulded coal, cost consumption is maximum
Link be baking process, this process consumes big volume and electricity, and needs large-scale drying equipment, significantly increases production
Cost, and produce dry moulded coal process using mixing coal slime of the present invention and no longer need to carry out baking process, it can be greatly reduced
Production cost.
Second, of the present invention to exempt from drying-type mixing coal slime, on the one hand the addition of carbide slag solves the baking of wet coal slime
On the other hand dry problem also retains most carbide slag in the drying moulded coal produced, carbide slag main component is hydroxide
Calcium, is decomposed into calcium oxide in burner hearth under the action of high temperature, and the SO released when Combustion of Mould Coal2Life can be reacted with carbide slag
At CaSO3Or CaSO4It is fixed, completes solid sulphur process, effectively prevent sulphur with SO2Form flow to air and cause environment dirty
Dye not only solves coal slime drying problem, and solve by carbide slag bring in addition, carbide slag is added in wet coal slime
Storage, drying and waste water handling problem had both solved wet coal slime drying bring cost and environmental issue, and had also reduced de-
Sulphur cost embodies the theory of energy conservation and environmental protection and resource circulation utilization.
Specific embodiment
The present invention will be described in detail below with reference to specific embodiments, the present embodiment based on the technical solution of the present invention,
The detailed implementation method and specific operation process are given.
Embodiment 1
One kind exempting from drying-type mixing coal slime, and according to parts by weight, the mixing coal slime is by 85 parts of wet coal slimes, 10 parts of purity 75%
Calcium oxide powder, 8 parts of purity are in 75% calcium chloride powder, 4 parts of solid sodium hydroxides and 10 parts of carbide slags composition, wherein it is described wet
The mixed proportion of calcium oxide powder, calcium chloride powder, solid sodium hydroxide and carbide slag in coal slime is 5:2:1:4.
Further, according to parts by weight, 1 part of mine tailing is also added in the mixing coal slime.
Further, according to parts by weight, 1 part of soda lime is also added in the mixing coal slime.
Utilize the production technology for exempting from the dry moulded coal of drying-type mixing coal slime production, comprising the following steps:
1) each component is weighed according to above-mentioned parts by weight, calcium oxide powder is successively added into wet coal slime at room temperature, calcium chloride powder, consolidates
Body sodium hydroxide and carbide slag, are mixed evenly, and obtain mixing coal slime；
2) will in mixing coal slime merging production equipment, successively by stirring transmission, rotation is broken, after dehumidifier dedusting up to drying type
Coal.
Embodiment 2
One kind exempting from drying-type mixing coal slime, and according to parts by weight, the mixing coal slime is by 90 parts of wet coal slimes, 13 parts of purity 75%
Calcium oxide powder, 11 parts of purity are in 75% calcium chloride powder, 5 parts of solid sodium hydroxides and 13 parts of carbide slags composition, wherein it is described
The mixed proportion of calcium oxide powder, calcium chloride powder, solid sodium hydroxide and carbide slag in wet coal slime is 5:2:1:4.
Further, according to parts by weight, 1.5 parts of mine tailing is also added in the mixing coal slime.
Further, according to parts by weight, 1.5 parts of soda lime is also added in the mixing coal slime.
Utilize the production technology for exempting from the dry moulded coal of drying-type mixing coal slime production, comprising the following steps:
1) each component is weighed according to above-mentioned parts by weight, calcium oxide powder is successively added into wet coal slime at room temperature, calcium chloride powder, consolidates
Body sodium hydroxide and carbide slag, are mixed evenly, and obtain mixing coal slime；
2) will in mixing coal slime merging production equipment, successively by stirring transmission, rotation is broken, after dehumidifier dedusting up to drying type
Coal.
Embodiment 3
One kind exempting from drying-type mixing coal slime, and according to parts by weight, the mixing coal slime is by 95 parts of wet coal slimes, 16 parts of purity 75%
Calcium oxide powder, 14 parts of purity are in 75% calcium chloride powder, 6 parts of solid sodium hydroxides and 16 parts of carbide slags composition, wherein it is described
The mixed proportion of calcium oxide powder, calcium chloride powder, solid sodium hydroxide and carbide slag in wet coal slime is 5:2:1:4.
Further, according to parts by weight, 2 parts of mine tailing is also added in the mixing coal slime.
Further, according to parts by weight, 2 parts of soda lime is also added in the mixing coal slime.
Utilize the production technology for exempting from the dry moulded coal of drying-type mixing coal slime production, comprising the following steps:
1) each component is weighed according to above-mentioned parts by weight, calcium oxide powder is successively added into wet coal slime at room temperature, calcium chloride powder, consolidates
Body sodium hydroxide and carbide slag, are mixed evenly, and obtain mixing coal slime；
2) will in mixing coal slime merging production equipment, successively by stirring transmission, rotation is broken, after dehumidifier dedusting up to drying type
Coal.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention is as above with preferred embodiment description, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when a little change or modification made using technology contents described above
It is the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention, according to the technical essence of the invention
Any simple modification, equivalent change and modification to the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (4)
1. one kind exempts from drying-type mixing coal slime, it is characterised in that: according to parts by weight, the mixing coal slime is by 85-95 parts of wet coals
Mud, 10-16 part purity 75% calcium oxide powder, 8-14 parts of purity 75% calcium chloride powder, 4-6 parts of solid sodium hydroxides and
10-16 parts of carbide slags composition, wherein calcium oxide powder, calcium chloride powder, solid sodium hydroxide and carbide slag in the wet coal slime
Mixed proportion is 5:2:1:4.
2. one kind as described in claim 1 exempts from drying-type mixing coal slime, it is characterised in that: according to parts by weight, the mixing
1-2 parts of mine tailing is also added in coal slime.
3. one kind as described in claim 1 exempts from drying-type mixing coal slime, it is characterised in that: according to parts by weight, the mixing
1-2 parts of soda lime is also added in coal slime.
4. using any production technology exempted from drying-type mixing coal slime and produce dry moulded coal of claim 1-3, feature
It is, comprising the following steps:
1) each component is weighed according to above-mentioned parts by weight, calcium oxide powder is successively added into wet coal slime at room temperature, calcium chloride powder, consolidates
Body sodium hydroxide and carbide slag, are mixed evenly, and obtain mixing coal slime；
2) will in mixing coal slime merging production equipment, successively by stirring transmission, rotation is broken, after dehumidifier dedusting up to drying type
Coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710817382.0A CN109486544A (en) | 2017-09-12 | 2017-09-12 | A kind of technique exempted from drying-type mixing coal slime and produce dry moulded coal using it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710817382.0A CN109486544A (en) | 2017-09-12 | 2017-09-12 | A kind of technique exempted from drying-type mixing coal slime and produce dry moulded coal using it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109486544A true CN109486544A (en) | 2019-03-19 |
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ID=65687703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710817382.0A Pending CN109486544A (en) | 2017-09-12 | 2017-09-12 | A kind of technique exempted from drying-type mixing coal slime and produce dry moulded coal using it |
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| CN (1) | CN109486544A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110791343A (en) * | 2019-11-19 | 2020-02-14 | 平顶山天安煤业股份有限公司 | Drying-free granulation treatment agent for wet coal slime |
| CN113528213A (en) * | 2021-07-30 | 2021-10-22 | 内蒙古伊泰化工有限责任公司 | Resourceful treatment method and utilization process of gasification furnace slag |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1356282A (en) * | 2001-10-12 | 2002-07-03 | 朱雪芳 | Clean combustion of boiler using coal as fuel and comprehensive utilization |
| US20060117651A1 (en) * | 2001-01-10 | 2006-06-08 | Hundley Joseph W | Chemical change agent |
| CN102477333A (en) * | 2010-11-25 | 2012-05-30 | 西安瑞金源能源科技有限责任公司 | Clean coal |
| CN102517120A (en) * | 2011-12-27 | 2012-06-27 | 长春市奥地特科技有限公司 | Fuel coal additive |
-
2017
- 2017-09-12 CN CN201710817382.0A patent/CN109486544A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060117651A1 (en) * | 2001-01-10 | 2006-06-08 | Hundley Joseph W | Chemical change agent |
| CN1356282A (en) * | 2001-10-12 | 2002-07-03 | 朱雪芳 | Clean combustion of boiler using coal as fuel and comprehensive utilization |
| CN102477333A (en) * | 2010-11-25 | 2012-05-30 | 西安瑞金源能源科技有限责任公司 | Clean coal |
| CN102517120A (en) * | 2011-12-27 | 2012-06-27 | 长春市奥地特科技有限公司 | Fuel coal additive |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110791343A (en) * | 2019-11-19 | 2020-02-14 | 平顶山天安煤业股份有限公司 | Drying-free granulation treatment agent for wet coal slime |
| CN113528213A (en) * | 2021-07-30 | 2021-10-22 | 内蒙古伊泰化工有限责任公司 | Resourceful treatment method and utilization process of gasification furnace slag |
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Application publication date: 20190319 |
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