CN101275092A - Molded coal made of calcium carbide precipitator dust - Google Patents
Molded coal made of calcium carbide precipitator dust Download PDFInfo
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- CN101275092A CN101275092A CNA2007100487281A CN200710048728A CN101275092A CN 101275092 A CN101275092 A CN 101275092A CN A2007100487281 A CNA2007100487281 A CN A2007100487281A CN 200710048728 A CN200710048728 A CN 200710048728A CN 101275092 A CN101275092 A CN 101275092A
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- calcium carbide
- precipitator dust
- carbide precipitator
- coal
- raw coal
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Abstract
The present invention provides a briquette manufactured by utilizing calcium carbide precipitator dust, that is using calcium carbide precipitator dust as a binder, a sulfur-fixing agent, an additive to produce the briquette. The technical scheme of the invention is that the raw material of the briquette is composed of raw coal and calcium carbide precipitator dust, the content of the calcium carbide precipitator dust is 20-50% of the dry matter total of the raw coal. Compared with the traditional raw coal, the invention saves more than 30% raw coal, reducing more than 20% production cost, according to the detection, sulfur dioxide discharged by raw material burning reduces 55-60%, carbon dioxide reduces 20-30%. The invention has a simple process, lower cost, saving raw coal, and reducing environment pollution.
Description
Technical field
The present invention relates to a kind of moulded coal, relate to a kind of moulded coal that utilizes calcium carbide precipitator dust to make in particular.
Background technology
Moulded coal is one of important fuel of China, and the method for making of traditional moulded coal is thin through powder with raw coal, by a certain percentage, adds after yellow mud, clay or lime mixes thoroughly, makes moulded coal, for warm oneself, cook, cooking, life usefulness such as heat up water.The main raw material of tradition moulded coal is a raw coal, wherein contains than higher sulfide, in combustion processes, generates pollutant emissions such as sulfurous gas, carbonic acid gas, flue dust in air, and surrounding environment has been caused very big pollution; And because the content of traditional moulded coal Central Plains coal is than higher, the usage quantity of raw coal is big, and this non-renewable resource has also been caused very big waste.
Summary of the invention
The objective of the invention is to overcome the above-mentioned problems in the prior art, provide a kind of production technique simple, cheap, economize on resources the moulded coal that environmental pollution is little.
To achieve these goals, the present invention has adopted following technical proposals: a kind of moulded coal of making of calcium carbide precipitator dust, raw material is made up of calcium carbide precipitator dust and raw coal, wherein the content of calcium carbide precipitator dust is 20%～50% of moulded coal dry total amount, and preferred version is that the content of calcium carbide precipitator dust is 40%～45%.Described raw coal can be any one in mud coal, brown coal, bituminous coal, the hard coal.Described calcium carbide precipitator dust is meant in producing the process of calcium carbide and wherein contains calcium oxide, magnesium oxide about 60% with electrostatic precipitation or the collected dust of bag-type dust, and about 30% flammable carbon dust.
Moulded coal of the present invention can be cylindrical, also can be cube shaped.
Making method of the present invention is that raw coal is thin through powder, and the 20-50% that presses coal dry total amount adds calcium carbide precipitator dust, and poach is again made moulded coal when agglomerating again to pinching with hand, drying or dry naturally after the moulded coal that gets product.
Compared with prior art, the invention has the beneficial effects as follows: owing to contain 60% left and right sides calcium oxide, magnesium oxide in the calcium carbide precipitator dust, calcium hydroxide, magnesium hydroxide have been generated after adding water, when production of shaped coal, play the caking agent effect, when moulded coal burnt, the sulfurous gas of generation acted on it and has generated calcium sulfate, calcium sulfite or calcium bisulfate and magnesium salts and be deposited in the cinder carbonic acid gas that burning produces, part has generated lime carbonate and also has been deposited in the cinder, has reduced the pollution to air like this.In addition, in the calcium carbide precipitator dust, contain 30% the coal combustiblematerials of having an appointment, identify oneself with in the raw coal, duration of combustion is long, and the heat utilization efficiency height has been saved resource, has reduced production cost.
Production technique of the present invention is simple, can save raw coal more than 30%, reduces production costs more than 20%, can alleviate the pollution to environment simultaneously, and sulfurous gas can reduce 55-60% after testing, and carbonic acid gas can reduce 20-30%.
Embodiment
The present invention is described in further detail below in conjunction with embodiment.
Embodiment 1
With the fine particle diameter of having pulverized is the pulverized anthracite 3.0kg of 1～5mm, calcium carbide precipitator dust 2.0kg, and poach, being made into diameter is 110mm, contains the cylindrical moulded coal that 12 diameters are the 17mm circular hole in the middle of the high 75mm, moulded coal gets product after drying naturally.
Embodiment 2
With the pulverized anthracite 4.0kg that has pulverized, calcium carbide precipitator dust 1.0kg is made into the middle cylindrical moulded coal that contains 12 circular holes behind the poach, and moulded coal gets product after drying naturally.
Embodiment 3
With the pulverized anthracite 5.5kg that has pulverized, calcium carbide precipitator dust 4.5kg, the compacting length of side is 100mm behind the poach, and the cube-shaped moulded coal that 9 diameters are 18mm is contained in the centre, and moulded coal gets product after drying naturally.
Embodiment 4
With the pulverized anthracite 5.0kg that has pulverized, calcium carbide precipitator dust 5.0kg is pressed into square briquette behind the poach, and moulded coal gets product after drying naturally.
Claims (2)
1. a moulded coal of making of calcium carbide precipitator dust is made up of raw coal and calcium carbide precipitator dust, and the content that it is characterized in that described calcium carbide precipitator dust is 20%～50% of moulded coal dry total amount.
2. the moulded coal of making of calcium carbide precipitator dust according to claim 1, the content that it is characterized in that described calcium carbide precipitator dust is 40%～45% of moulded coal dry total amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100487281A CN101275092A (en) | 2007-03-26 | 2007-03-26 | Molded coal made of calcium carbide precipitator dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100487281A CN101275092A (en) | 2007-03-26 | 2007-03-26 | Molded coal made of calcium carbide precipitator dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101275092A true CN101275092A (en) | 2008-10-01 |
Family
ID=39994957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100487281A Pending CN101275092A (en) | 2007-03-26 | 2007-03-26 | Molded coal made of calcium carbide precipitator dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101275092A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967044A (en) * | 2010-09-26 | 2011-02-09 | 长安大学 | Method for preparing cement active admixture by utilizing dedusting ash in calcium carbide production and device thereof |
| CN105772490A (en) * | 2016-05-05 | 2016-07-20 | 福建省邵武市永飞化工有限公司 | Method for treating tailings residual acid at low cost during hydrofluoric acid production |
| CN108690675A (en) * | 2017-04-12 | 2018-10-23 | 新疆八钢铁股份有限公司 | Blast furnace dedusting ash as fuel water-tube boiler application |
-
2007
- 2007-03-26 CN CNA2007100487281A patent/CN101275092A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967044A (en) * | 2010-09-26 | 2011-02-09 | 长安大学 | Method for preparing cement active admixture by utilizing dedusting ash in calcium carbide production and device thereof |
| CN101967044B (en) * | 2010-09-26 | 2012-09-26 | 长安大学 | Method for preparing cement active admixture by utilizing dedusting ash in calcium carbide production and device thereof |
| CN105772490A (en) * | 2016-05-05 | 2016-07-20 | 福建省邵武市永飞化工有限公司 | Method for treating tailings residual acid at low cost during hydrofluoric acid production |
| CN105772490B (en) * | 2016-05-05 | 2018-06-15 | 福建省邵武市永飞化工有限公司 | A kind of method of the residual acid of tailings in low-cost processes Acid of Hydrofluoric Acid Production |
| CN108690675A (en) * | 2017-04-12 | 2018-10-23 | 新疆八钢铁股份有限公司 | Blast furnace dedusting ash as fuel water-tube boiler application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081001 |