CN1083854A - A kind of formed coal for gasification - Google Patents
A kind of formed coal for gasification Download PDFInfo
- Publication number
- CN1083854A CN1083854A CN 92110408 CN92110408A CN1083854A CN 1083854 A CN1083854 A CN 1083854A CN 92110408 CN92110408 CN 92110408 CN 92110408 A CN92110408 A CN 92110408A CN 1083854 A CN1083854 A CN 1083854A
- Authority
- CN
- China
- Prior art keywords
- coal
- binding agent
- moulded
- gasification
- jingxi district
- 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.)
- Granted
Links
Landscapes
- Fertilizers (AREA)
Abstract
A kind of formed coal for gasification, it is a raw material with Jingxi district anthracite fine coal, add the compound binding agent that coal gangue and a small amount of calcium lignin sulphonate form and make, owing to adopted the main ingredient of the bastard coal masonry binding agent of colliery discharge in the moulded coal, not only help utilization of waste material, and reduced the moulded coal cost, the cold strength height of moulded coal, Heat stability is good is used for gasification and is better than Jingxi district lump coal.
Description
The present invention relates to a kind of moulded coal, in particularly being suitable for, the formed coal for gasification that small-sized synthesis ammonia plant uses.
At present, the chemical fertilizers production of China is to be main raw material with the coal.A large amount of medium and small synthetic ammonia factory fixed bed water-gas generators are produced synthetic raw gas, and this vapourizing furnace need be used anthracite block coal, and along with the increase year by year of fertilizer production, lump coal supply day is becoming tight.Therefore, development anthracite fine coal forming technique increases moulded coal output and has become very urgent vital task.At present, the carbonating briquette production technology of widely using at synthesis ammonia plant need add 20～30% lime in feed coal, cause ash content to increase.And this moulding process also needs to carry out long carbonating to moulded coal and handles, and makes the complete processing complexity, and cost raises.Therefore, need a kind of binding agent expense of exploitation low, the simple coal powder formation technology of complete processing.Mining area, Jingxi district is anthracitic important producing region.Beijing Coal Mining Administration produces surplus the raw coal 600 ten thousand tons per year, and wherein fine coal mainly is to make domestic fuel more than 3,000,000 tons, and lump coal is because poor heat stability, and minute quantity is used for chemical fertilizers production.The anthracite block coal that near Beijing fertilizer plant uses the other places to ship in a large number, this has not only increased the cost of chemical fertilizers production, causes the anxiety of lump coal supply simultaneously.
The objective of the invention is to utilize Jingxi district anthracite fine coal to produce a kind of formed coal for gasification of inexpensive easy popularization,, provide a new technological approaches for enlarging of the application of Jingxi district fine coal in chemical fertilizers production.
For achieving the above object, the present invention adopts following scheme, and moulded coal is a raw material with Jingxi district anthracite fine coal, adds compound binding agent (Jingxi district coal gangue and calcium lignin sulphonate) and makes.
If the consumption of binding agent is very little in the moulded coal, its ultimate compression strength is not high enough, though consumption many intensity increase, ash content increases more, uneconomical again.General consumption is coal gangue 5～9%, calcium lignin sulphonate 0.3～1.5(weight percentage).Optimum amount: coal gangue 5～7%, calcium lignin sulphonate are 0.5～0.7%.
The preparation method of moulded coal comprises:
1, feed coal is crushed to below 3 millimeters.
2, with binding agent blending in proportion, add water, stir, the compound water ratio before the moulding is 9～12%.
3, send twin rollers coldmoulding, forming pressure is 250～400kg/cm
2
4, drying.
The invention will be further described below in conjunction with embodiment:
The analytical results of feed coal and coal gangue is listed in the table below:
| Sample | Moisture content Nad | Ash Aad | Fugitive constituent Vad | Ash fusion point ℃ | ||
| DI | SI | FI | ||||
| Big breeze coal of Wang Ping village breeze coal Wang Ping village pit coal spoil | 2.48 2.87 1.74 | 20.34 24.96 90.74 | 4.15 4.73 5.26 | 1430 1180 1380 | 〉1500 1230 〉1500 | 1270 |
Embodiment 1: the proportioning of moulded coal is: 92.3 parts in Jingxi district Da Tai breeze coal, and 7 parts of Wang Ping village pit coal spoils, 0.7 part of calcium lignin sulphonate is after 9-10% adds the water even blend, to send into the shaper extrusion forming by the compound total water content, forming pressure is 300kg/cm
2, the wet bulb of extrusion under 60～70 ℃ of temperature dry 2 hours, under 100～120 ℃ of temperature dry 2～3 hours again.After measured, the cold ultimate compression strength of moulded coal is the 57.6kg/ ball, and hot compressive strength is the 31kg/ ball, and ash fusion point SI is 1280 ℃.
Embodiment 2: 92.5 parts in Jingxi district Wang Pingcun breeze coal, and 7 parts of coal gangues, 0.5 part of calcium lignin sulphonate, complete processing is with embodiment 1.The cold ultimate compression strength of moulded coal is the 67kg/ ball, and hot compressive strength is the 32kg/ ball.
Embodiment 3: 94.5 parts in Jingxi district Da Tai breeze coal, and 5 parts of coal gangues, 0.5 part of calcium lignin sulphonate, complete processing is with example 1.The cold ultimate compression strength of moulded coal is the 46kg/ ball, and hot strength is the 32kg/ ball, and ash fusion point SI is 1260 ℃.
Advantage of the present invention is: the hot and cold intensity height of moulded coal, heat endurance is better than Jingxi district lump coal. Owing to the calcium lignosulfonates of a large amount of supplies on waste residue-gangue of selecting the colliery to discharge and the market are made binding agent, reduced the production cost of moulded coal, the expense of the binding agent that moulded coal per ton is used is no more than 10 yuan.
Claims (4)
1, a kind of formed coal for gasification is characterized in that it is a raw material with Jingxi district anthracite fine coal, adds compound binding agent and makes.
2,, it is characterized in that described compound binding agent is made up of Jingxi district coal gangue and a small amount of calcium lignin sulphonate by the described moulded coal of claim 1.The proportioning of moulded coal is: Jingxi district anthracite fine coal content is 90-94%, and coal gangue content is 5-9%, and the lignosulfonic acid calcium contents is the 0.3-1.5%(weight percent).
3, by the described moulded coal of claim 2, it is characterized in that the optimum addition of described compound binding agent is: coal gangue is 5～7%, and calcium lignin sulphonate is 0.5-0.7%.
4,, it is characterized in that to be ground into less than 60 orders or thinner powder as the coal gangue of binding agent by claim 2 or 3 described moulded coals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92110408A CN1037615C (en) | 1992-09-08 | 1992-09-08 | Briquette for gasification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92110408A CN1037615C (en) | 1992-09-08 | 1992-09-08 | Briquette for gasification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1083854A true CN1083854A (en) | 1994-03-16 |
| CN1037615C CN1037615C (en) | 1998-03-04 |
Family
ID=4944795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92110408A Expired - Fee Related CN1037615C (en) | 1992-09-08 | 1992-09-08 | Briquette for gasification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1037615C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812340A (en) * | 2010-04-15 | 2010-08-25 | 宋邦娟 | Water-soluble briquette adhesive and process applied to briquette production thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1023022C (en) * | 1988-12-22 | 1993-12-08 | 中国科学院山西煤炭化学研究所 | Method for preparing briquette |
| CN1048055A (en) * | 1989-06-15 | 1990-12-26 | 山东建筑材料工业学院 | A kind of manufacture method of multi-purpose solid fuel |
| CN1065676A (en) * | 1991-04-09 | 1992-10-28 | 于世柱 | Industry contains the synthetic coal cinder method of charcoal waste material-artificial charcoal |
| CN1068847A (en) * | 1992-05-16 | 1993-02-10 | 黄石市青山湖污水净化厂 | Sludge briquettes made from biochemical sludge |
-
1992
- 1992-09-08 CN CN92110408A patent/CN1037615C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812340A (en) * | 2010-04-15 | 2010-08-25 | 宋邦娟 | Water-soluble briquette adhesive and process applied to briquette production thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1037615C (en) | 1998-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101985575A (en) | Biomass moulded coal and preparation method thereof | |
| CN101348741B (en) | Boiler briquette and preparation method thereof | |
| CN1038600C (en) | Gasified briquette binder and briquette production process | |
| CN1037615C (en) | Briquette for gasification | |
| CN1168547C (en) | Iron-containing mud and sintered return mine reuse method | |
| CN1053692C (en) | Strong waterproof gas generating shaped coal | |
| CN1039131C (en) | Gasifying briquette for chemical fertilizer | |
| CN112646627A (en) | Granular briquette and preparation method thereof | |
| CN1042175A (en) | Briquette Manufacturing Method | |
| CN101139537A (en) | High-temperature casting molded coal and method for producing the same | |
| CN1032369C (en) | Sulfur-fixing and water-proof industrial briquette | |
| CN85100645A (en) | Double ball sintering process | |
| CN1200085C (en) | Composite adhesive for industrial briquettes | |
| CN1323144C (en) | Process for producing gasification briquette | |
| CN102965171B (en) | Binder special for coal briquette for Lurgi pressurized gasification | |
| CN101343692A (en) | Carbon based reductive | |
| CN102952601B (en) | Binder for pressure gasification briquettes | |
| CN1062300C (en) | High strength water-proof industrial briquette | |
| CN111675200A (en) | Method for producing powdered rock phosphate pellets by using powdered rock phosphate | |
| CN101113113A (en) | High-nitrogen organic fertilizer using biogas fertilizer as base-material and preparation method thereof | |
| CN1101663A (en) | Powdered coal organic adhesive forming technology | |
| CN1268552A (en) | Formed coal (coke) fuel with inflammable, water-proof and sulfur-fixng functions | |
| CN1076048C (en) | Quick self-drying, sulfur-fixed and water-proof briquet (coke) | |
| CN101270293A (en) | Clean carbon and preparation method thereof | |
| CN117658496B (en) | Be used for reducing blast furnace slag grinding energy consumption and CO2Discharged composite additive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |