CN1104243A - formed coke and preparation method thereof - Google Patents
formed coke and preparation method thereof Download PDFInfo
- Publication number
- CN1104243A CN1104243A CN 93112853 CN93112853A CN1104243A CN 1104243 A CN1104243 A CN 1104243A CN 93112853 CN93112853 CN 93112853 CN 93112853 A CN93112853 A CN 93112853A CN 1104243 A CN1104243 A CN 1104243A
- Authority
- CN
- China
- Prior art keywords
- coal
- formed coke
- binder
- binding agent
- coke
- 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
- 239000000571 coke Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title description 4
- 239000003245 coal Substances 0.000 claims abstract description 23
- 239000011230 binding agent Substances 0.000 claims abstract description 21
- 239000002802 bituminous coal Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 5
- 229910021538 borax Inorganic materials 0.000 claims abstract description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 5
- 239000004328 sodium tetraborate Substances 0.000 claims abstract description 5
- 235000010339 sodium tetraborate Nutrition 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 238000003763 carbonization Methods 0.000 claims description 12
- 238000004939 coking Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000002817 coal dust Substances 0.000 claims description 2
- 238000000748 compression moulding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 abstract 2
- 239000003830 anthracite Substances 0.000 abstract 2
- 238000010000 carbonizing Methods 0.000 abstract 2
- 238000002955 isolation Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 238000010792 warming Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Coke Industry (AREA)
Abstract
The invention provides formed coke, which takes coal as a raw material, is formed by the bonding action of a binder, and a product is obtained by further carbonizing the formed coke under the condition of air isolation, wherein the binder comprises the following components in percentage by weight: 0.20-0.70 of borax (dry basis); 0.02-0.80 of sodium silicate; 99.0-99.7 of water. The proportion (weight percentage) of the coal and the binder is as follows: 50-74 of anthracite; 20-45% of bituminous coal; 5-15 parts of a binder. The formed coke of the invention adopts the binder with abundant and cheap resources, the cost of the binder used by a ton of formed coke is only 5-6 yuan, the anthracite and the bituminous coal are reasonably mixed, and the formed coke prepared by molding and carbonizing can reach the quality of national standard secondary and tertiary coke.
Description
The invention belongs to solid fuel, being specifically related to a kind of coal that adopts is the formed coke of feedstock production.
Coke is widely used in metallurgy and machine casting industry, generally is obtaining after the carbonization under the condition of secluding air by coking furnace with high-quality bituminous coal, and this coke is owing to the requirement height to ature of coal, so cost is higher.In addition, people also adopt the method for preparing moulded coal with coke powder with directly be pressed into formed coke after binding agent mixes.This formed coke has utilized the depleted coke powder, but the formed coke of making it is fair lower.
The object of the present invention is to provide a kind of high quality, formed coke cheaply, and its preparation method is provided.
Formed coke of the present invention is to be raw material with the coal, makes it moulding by means of the adhesive effect of binding agent, it is characterized in that after the moulding must under the condition of secluding air after further carbonization product, the component concentration of described binding agent (weight percent) is:
Borax (butt) 0.20-0.70
Sodium silicate 0.02-0.80
Water 99.0-99.7
The proportioning of coal and binding agent (weight percent) is:
Hard coal 50-74
Bituminous coal 20-45
Binding agent 5-15
The preparation method of formed coke of the present invention is after the coal dust that will pulverize is mixed in proportion, stir with the binding agent thorough mixing again, send into compression moulding in the shaper, send into carbonization under the condition of secluding air in the coking furnace then, carbonization divides two temperature sections to carry out: (1) 200-300 ℃ kept 40-90 minute; (2) 800-1020 ℃ kept 150-270 minute, made the body of heater naturally cooling after carbonization is finished, the product of coming out of the stove.
The used water of described binding agent can be softening water.
Described coal can also be a coke powder.
Formed coke of the present invention adopts aboundresources and inexpensive binding agent, and the cost of the used binding agent of ton moulded coal is 5-6 unit only, thereby greatly reduces the cost of formed coke, and has good intensity, thermostability and hydrophobicity.Hard coal and bituminous coal are carried out reasonable coal blending, and made formed coke can reach two, three grades of Jiao's of GB quality after moulding, carbonization.The present invention has opened up the road of an economy for a large amount of anthracitic increment utilizations of abandoning contaminate environment, thereby has good economic benefits and application prospect.
Embodiment 1
Take by weighing 0.3 kilogram of butt borax, 0.07 kilogram of sodium silicate dissolves borax earlier with 50 ℃ of left and right sides hot water, add sodium silicate and 99.68 kilograms of softening waters then, after stirring, makes about 100 kilograms binding agent.
Embodiment 2
585 kilograms of pulverized anthracites and bituminous coal are crushed to below the 3mm for 315 kilograms, then with 100 kilograms of binding agent thorough mixing of embodiment 1, stir.Mechanical-moulded under the pressure of 400 kg/cm.Then above-mentioned shaped coal is packed in the coking furnace, carbonization under the condition of secluding air, carbonization divide two temperature sections to carry out, and at first are warming up to 200-300 ℃, keep 70 minutes; Continue to be warming up to 800-1000 ℃ subsequently again, kept 240 minutes.Make the body of heater naturally cooling after carbonization is finished, the product of coming out of the stove is formed coke.
The analytical results of raw materials used coal of the foregoing description and prepared formed coke sees the following form.
Table 1 feed coal analytical results
Coal sample W A V C H N S Q characteristic of char residue
Jincheng hard coal 3.50 14.21 7.21 77.6 2.35 0.91 0.33 6,500 1
Bituminous coal 3.60 12.90 18.04
Table 2 formed coke analytical results
Interventions Requested unit's assay
Moisture Mad % 0.22
Ash content Ad % 11.91
Volatile matter Vdaf % 1.2
Fixed carbon FCad % 86.84
Full sulphur Std % 0.5
Physical strength (M10) 1.0
Physical strength (M40) 99.0
Analytical data in the table 1 is made according to GB GB212-91, and the data in the table 2 are made according to GB GB1996-80 standard, and the embodiment formed coke is qualified product.
Claims (3)
1, a kind of industrial formed coke is a raw material with the coal, makes it moulding by means of the adhesive effect of binding agent, it is characterized in that the coal after the moulding must further made formed coke after the carbonization under the condition of secluding air, and the component concentration of described binding agent (weight percent) is:
Borax (butt) 0.20-0.70
Sodium silicate 0.02-0.80
Water 99.0-99.7
The proportioning of coal and binding agent (weight percent) is:
Hard coal 50-74
Bituminous coal 20-45
Tackiness agent 5-15.
2, formed coke as claimed in claim 1 is characterized in that described water can be softening water.
3, a kind of method for preparing the described formed coke of claim 1, be that coal dust and the binding agent that will pulverize is mixed in proportion, stir, send into shaper compression moulding, it is characterized in that coal after the moulding must directly be packed into divides two temperature sections to carry out carbonization under the condition of secluding air in the coking furnace: (1) 200-300 ℃ kept 40-90 minute; (2) 800-1000 ℃ kept 150-270 minute down, made the body of heater naturally cooling after carbonization is finished, the product of coming out of the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93112853 CN1104243A (en) | 1993-12-25 | 1993-12-25 | formed coke and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93112853 CN1104243A (en) | 1993-12-25 | 1993-12-25 | formed coke and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1104243A true CN1104243A (en) | 1995-06-28 |
Family
ID=4990296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93112853 Pending CN1104243A (en) | 1993-12-25 | 1993-12-25 | formed coke and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1104243A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441672A (en) * | 2015-11-18 | 2016-03-30 | 攀枝花钢城集团协力有限公司 | Formcoke molding binder |
-
1993
- 1993-12-25 CN CN 93112853 patent/CN1104243A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441672A (en) * | 2015-11-18 | 2016-03-30 | 攀枝花钢城集团协力有限公司 | Formcoke molding binder |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |