CN110079352A - A kind of pulverized coal pyrolysis coal is dry and expects encapsulation technique - Google Patents
A kind of pulverized coal pyrolysis coal is dry and expects encapsulation technique Download PDFInfo
- Publication number
- CN110079352A CN110079352A CN201910366888.3A CN201910366888A CN110079352A CN 110079352 A CN110079352 A CN 110079352A CN 201910366888 A CN201910366888 A CN 201910366888A CN 110079352 A CN110079352 A CN 110079352A
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- China
- Prior art keywords
- coal
- dry
- pyrolysis
- dryness storehouse
- expects
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
Abstract
A kind of pulverized coal pyrolysis coal is dry and expects encapsulation technique.The present invention relates to the drying of as-fired coal material and mothballed plants, are dry coal bunker at the top of carbonization chamber, and dry coal bunker is divided into dryer section and pyrolysis gas material envelope, it is necessary to assure raw coal has enough piling heights to realize that material seals.Dryness storehouse top is slightly expanded so that coal bunker dried feed envelope storehouse module in top can be embedded in dryness storehouse, and cutting plate is arranged in material envelope section top, and distributing structure is arranged in lower part, and distributing structure uses the pointed shape of umbrella, by dry raw coal mean allocation to 7 carbonization chambers.Dryness storehouse provides place for raw coal drying.Raw coal directly contacts in dryness storehouse with hot air flue gas after import entrance, and temperature increases, and vapor is precipitated in the evaporation of itself moisture.Vapor goes out through two sides deflector water conservancy diversion from upper of furnace body pyrolysis gas outlet water conservancy diversion.Present apparatus drying enters furnace fine coal, makes full use of the heat of stack gases, removes itself moisture vapor, reduces the vapor in coal gas, promotes gas quality；It is ingenious to there are enough piling heights to realize to the pyrolysis gas progress self-sealing inside carbonization chamber using raw coal, improve the thermal efficiency of low order powder coal stove entirety.
Description
Technical field
The present invention relates to a kind of pulverized coal pyrolysis coal drying and material encapsulation techniques, belong to pyrolyzing coal drying and technical field of sealing technology
Background technique
Coal resources in China relative abundance, but the lower low-order coal of utility value occupies sizable ratio, in low order
During pulverized coal pyrolysis, enters the thermal efficiency that furnace fine coal water content has seriously affected greatly pyrolysis oven and needed pre- after fine coal enters furnace body
Generate water vapour after heat, water vapour and coal gas are mixed into gas cleaning system, increase raw coke oven gas volume, flow velocity increase and incite somebody to action
Coal dust brings coal gas processing system into, influences raw coke oven gas quality.Gas-fired in pulverized coal pyrolysis furnace combustion chamber, can generate a large amount of high temperature
Exhaust gas, these stack gases are directly discharged into atmosphere through blower chimney, cause a large amount of thermal loss, reduce the heat of pyrolysis oven entirety
Efficiency, therefore how to be coking industry issues that need special attention by the heat recovery and utilization of stack gases.
Currently used stack gases carry out coal preheating, and warm is all carried out in furnace exterior, are transported to coal bunker after preheating,
It can generate a series of problems during transporting, and the practicability is poor.Therefore it is directly filled after coal bunker is using stack gases preheating fine coal
Enter carbonization chamber technology with apparent technical advantage and application prospect.
Problem to be solved by this invention is: for low order fine coal as-fired coal moisture content is big and sealing problem, providing
A kind of pulverized coal pyrolysis coal is dry and expects encapsulation technique, is directly contacted in dryness storehouse with fine coal using hot air flue gas, and temperature increases,
The evaporation of itself moisture, is precipitated vapor, the temperature before improving fine coal shove charge.Vapor is through two sides deflector water conservancy diversion, from furnace body
Portion's pyrolysis gas outlet water conservancy diversion goes out.
It is compared with prior art, of the invention the invention belongs to the new method that a kind of pulverized coal pyrolysis coal is dry and expects to seal
Beneficial effect is:
1) fine coal enters dryness storehouse, and wherein moisture vapor is through two sides deflector water conservancy diversion for removing, from upper of furnace body pyrolysis gas
Outlet guide outflow, promotes gas quality；
2) pyrolysis time in furnace can be shortened after fine coal preheats outside furnace, improve pyrolysis furnace output；
3) heat of hot air flue gas is made full use of, the thermal efficiency of low order fine coal gas retort entirety is improved；
4) hot air flue gas is directly contacted with fine coal, and heat exchange efficiency is high；
Detailed description of the invention
Fig. 1 is pulverized coal pyrolysis furnace moisture-free coal chamber structure figure: wherein 1 coal bunker；2 flues；3 cutting plates；4. carbonization chamber.
Specific embodiment
Dryer section is 5 meters high, including 2 meters of dryer sections and 3 meters of pyrolysis gas material envelopes, it is necessary to assure raw coal has enough piling heights
Realize material envelope.Dryer section dryness storehouse and destructive distillation material envelope storehouse are all made of the welding of common carbon structural steel Q235B steel plate, outside plus angle steel
It reinforces, inside setting angle steel supports, it is ensured that the stability of structure.Dryness storehouse top is slightly expanded so that top coal bunker dried feed seals storehouse
Module can be embedded in dryness storehouse, and cutting plate is arranged in material envelope section top, and distributing structure is arranged in lower part, and distributing structure uses the pointed shape of umbrella,
By dry raw coal mean allocation to 7 carbonization chambers.Dryer section size: 4000 (length) mm × 3000 (width) mm × 5000mm (height),
Dischargeable capacity about 60m3, 0.6 meter of middle and lower part umbrella cusp height is that the hot wind gas discharge tube at the top of the carbonization chamber of lower part leaves enough
Space.
Dryness storehouse provides place for raw coal drying.Raw coal is direct with hot air flue gas in dryness storehouse after import entrance
Contact, temperature increase, and vapor is precipitated in the evaporation of itself moisture.Vapor is through two sides deflector water conservancy diversion, from upper of furnace body pyrolysis gas
Outlet guide outflow.
Claims (4)
1. a kind of pulverized coal pyrolysis coal is dry and expects encapsulation technique, which is characterized in that dryness storehouse provides place for raw coal drying.Raw coal from
It after import enters, is directly contacted in dryness storehouse with hot air flue gas, temperature increases, and vapor is precipitated in the evaporation of itself moisture.Water
Steam goes out through two sides deflector water conservancy diversion from upper of furnace body pyrolysis gas outlet water conservancy diversion, while using the piling height of moisture-free coal, to charcoal
The pyrolysis gas for changing chamber interior carries out self-sealing.
2. a kind of pulverized coal pyrolysis coal according to claim 1 is dry and expects encapsulation technique, which is characterized in that the dryer section
It is 5-6 meters high, including 2-3 meters of dryer sections and 2-3 meters of pyrolysis gas material envelopes, it is necessary to assure raw coal has enough piling heights to realize material
Envelope.
3. a kind of pulverized coal pyrolysis coal according to claim 1 is dry and expects encapsulation technique, which is characterized in that the dryer section
Dryness storehouse and destructive distillation material envelope storehouse are all made of the welding of common carbon structural steel Q235B steel plate, outside plus angle steel reinforced, inside setting angle
Bracing members, it is ensured that the stability of structure.
4. a kind of pulverized coal pyrolysis coal according to claim 1 is dry and expects encapsulation technique, which is characterized in that the dryness storehouse
Top is slightly expanded so that coal bunker dried feed envelope storehouse module in top can be embedded in dryness storehouse, and cutting plate is arranged in material envelope section top, and lower part is set
Distributing structure is set, distributing structure uses the pointed shape of umbrella, by dry raw coal mean allocation to 7 carbonization chambers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910366888.3A CN110079352A (en) | 2019-05-10 | 2019-05-10 | A kind of pulverized coal pyrolysis coal is dry and expects encapsulation technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910366888.3A CN110079352A (en) | 2019-05-10 | 2019-05-10 | A kind of pulverized coal pyrolysis coal is dry and expects encapsulation technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110079352A true CN110079352A (en) | 2019-08-02 |
Family
ID=67418637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910366888.3A Pending CN110079352A (en) | 2019-05-10 | 2019-05-10 | A kind of pulverized coal pyrolysis coal is dry and expects encapsulation technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110079352A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620186Y (en) * | 2003-05-21 | 2004-06-09 | 史学家 | Device for drying raw coal by boiler smoke |
| CN102676187A (en) * | 2012-04-17 | 2012-09-19 | 北京德天御投资管理有限责任公司 | Gas heat carrier low-temperature pyrolyzing furnace and gas heat carrier low-temperature pyrolyzing method |
| CN105349157A (en) * | 2015-11-23 | 2016-02-24 | 中国庆华能源集团有限公司 | Rotary type pyrolysis reactor and pyrolysis method |
| CN106190192A (en) * | 2015-06-03 | 2016-12-07 | 苏州天允金属材料有限公司 | The material guide device that pyrolysis system is supporting |
| CN107033939A (en) * | 2016-11-15 | 2017-08-11 | 长安大学 | A kind of pulverized coal pyrolysis method and device |
-
2019
- 2019-05-10 CN CN201910366888.3A patent/CN110079352A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620186Y (en) * | 2003-05-21 | 2004-06-09 | 史学家 | Device for drying raw coal by boiler smoke |
| CN102676187A (en) * | 2012-04-17 | 2012-09-19 | 北京德天御投资管理有限责任公司 | Gas heat carrier low-temperature pyrolyzing furnace and gas heat carrier low-temperature pyrolyzing method |
| CN106190192A (en) * | 2015-06-03 | 2016-12-07 | 苏州天允金属材料有限公司 | The material guide device that pyrolysis system is supporting |
| CN105349157A (en) * | 2015-11-23 | 2016-02-24 | 中国庆华能源集团有限公司 | Rotary type pyrolysis reactor and pyrolysis method |
| CN107033939A (en) * | 2016-11-15 | 2017-08-11 | 长安大学 | A kind of pulverized coal pyrolysis method and device |
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| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190802 |
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| WD01 | Invention patent application deemed withdrawn after publication |