GB790024A - Process for the hot-briquetting of coal - Google Patents
Process for the hot-briquetting of coalInfo
- Publication number
- GB790024A GB790024A GB32573/55A GB3257355A GB790024A GB 790024 A GB790024 A GB 790024A GB 32573/55 A GB32573/55 A GB 32573/55A GB 3257355 A GB3257355 A GB 3257355A GB 790024 A GB790024 A GB 790024A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coal
- temperature
- compression
- press
- softening point
- 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.)
- Expired
Links
Classifications
-
- 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
Landscapes
- 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
Powdered coal and similar fuel material is formed into briquettes without the use of a binder by a process in which the material is preheated to just below its softening point and compressed at a temperature which is raised rapidly from the softening point to the temperature of optimum mouldability, the material fusing into briquettes. Temperature control is achieved by adjusting the softening point and/or the character of the compression operation. To lower the softening temperature the material may be preheated in drying drums, first in a co-current of oxygen-containing gas and then in a counter-current of steam. Factors which control the character of the compression operation are the amount of material in the mould cavity and the speed of compression; also, in the extrusion type of briquetting press, the length of the extrusion channel. The press may be heated externally. Existing briquetting presses may be used, including roller press and ring-roller presses, the compression adjustment being effected by the amount of the charge. The material may be cooled in the press before the release of pressure to allow gas formation to cease. Suitable materials besides coal and coal mixtures are mixtures of coal and coke or coal and semi-coke. Typical preheating temperatures are 350 DEG -380 DEG C., range of temperature rise during compression 20 DEG -80 DEG C., corresponding to a final pressure of about 5-7 tons/sq. in. Numerical examples are given for gas coals and non-bituminous coal.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE790024X | 1954-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB790024A true GB790024A (en) | 1958-01-29 |
Family
ID=6699902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32573/55A Expired GB790024A (en) | 1954-11-15 | 1955-11-15 | Process for the hot-briquetting of coal |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB790024A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353159A (en) * | 2016-09-08 | 2017-01-25 | 华北科技学院 | Apparatus and method for manufacturing coal sample by hybrid hot-pressing |
-
1955
- 1955-11-15 GB GB32573/55A patent/GB790024A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353159A (en) * | 2016-09-08 | 2017-01-25 | 华北科技学院 | Apparatus and method for manufacturing coal sample by hybrid hot-pressing |
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