CN202519199U - Coal pyrolysis equipment for improving yield of tar - Google Patents
Coal pyrolysis equipment for improving yield of tar Download PDFInfo
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- CN202519199U CN202519199U CN201220151448XU CN201220151448U CN202519199U CN 202519199 U CN202519199 U CN 202519199U CN 201220151448X U CN201220151448X U CN 201220151448XU CN 201220151448 U CN201220151448 U CN 201220151448U CN 202519199 U CN202519199 U CN 202519199U
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Abstract
The utility model provides coal pyrolysis equipment for improving yield of tar by reducing secondary cracking of the tar at a high temperature and a coal pyrolysis method. The coal pyrolysis equipment for improving the yield of the tar comprises a furnace body; the furnace body consists of a fixed furnace top, a furnace wall and a rotary furnace bottom; a material bed for placing a material is arranged on the rotary furnace bottom, an overhead space is formed between the material bed and the furnace bottom, and the material bed is a ventilated material bed; and one side of the overhead space is provided with an air suction port, and the air suction port is connected with a high-temperature fan and an air outlet. According to the coal pyrolysis equipment for improving the yield of the tar, the furnace body structure in the rotary bed and an air flue are changed, so that the gas flowing direction in the furnace is regulated, and thermal field cycle in the furnace and material heating effect are enhanced. Pyrolysis gas forcibly penetrates a material layer under the action of the high-temperature fan, so that gas flow in the furnace is enhanced, and heat transfer of the material layer is quickened; and secondary cracking of the tar due to secondary combination of macromolecular free radicals produced by pyrolysis of raw coal is eliminated, so that the tar yield of raw coal pyrolysis is improved.
Description
Technical field
The utility model relates to a kind of coal cracking equipment, relates in particular to a kind of coal cracking equipment that improves tar yield.
Background technology
Application number is 200910238038.1; Patent name is the moving-bed retorting furnace of radiator tube and the comprehensive heating of circulating current; Be used for the rotating bed of materials such as pyrolysis coal, biomass, domestic waste, as shown in Figure 1, form by furnace bottom 2, the furnace bottom Stilt layer 3 of fixed furnace wall 4, furnace roof 6, rotation; Water seal, sand seal or oil sealing sealing system 1 are arranged between furnace bottom 2 and the furnace wall 4, burner hearth is isolated from the outside.Material 7 is laid on the fixed material bed and is driven at the horizontal plane internal rotation by the furnace bottom that rotates 2, and material 7 relative material beds are static, 7 nothing extruding of material, nothing motion, and heats is good.Space between material bed and furnace roof is a burner hearth, and heating units such as burner, radiator tube 5 are installed in the burner hearth, and material 7 is played heat effect.Rotating bed is furnished with blower fan 9, suction opening 8 and tuyere 11, is used to strengthen furnace gas and flows, and strengthens the heat exchange of 7 of furnace gas and materials.This gas retort internal gas flow circulation is the pump circulation mode, employing be that destructive distillation gas circulates from bottom to top, make destructive distillation gas long at residing time in furnace, cause the second pyrolysis of tar easily, tar yield is relatively low.
Application number is 201110286641.4, and patent name is rotating bed gas retort and the method that activation pyrolyzing gas improves dry distillation of coal tar yield, is used for the rotating bed of materials such as pyrolysis coal, biomass, domestic waste.As shown in Figure 2, form by the furnace bottom 2 of fixed furnace wall 4, furnace roof 6, rotation, water seal, sand seal or oil sealing sealing system 1 are arranged between furnace bottom 2 and the furnace wall 4, burner hearth is isolated from the outside.Material 7 is laid on the fixed material bed by 2 driving at the horizontal plane internal rotation at the bottom of the rotary oven, and the material bed is static relatively for material 7, and 7 of materials do not have extruding, do not have motion, and heats is good.The space that material bed and furnace roof are 6 is a burner hearth, adopts radiator tube 5 heating to be installed in the burner hearth, and material 7 is played heat effect.Rotating bed is furnished with blower fan 9, and the suction opening 8 of blower fan 9 is positioned at burner hearth, and tuyere 8 is positioned near the material bed.At blower fan 9 positions catalyzer 12, oxygenant module 13 and temperature control module 14 are housed, turn back to the material position through tuyere 11 again after the hot gas of feasible suction blower fan 9 and the catalyst oxidant reaction.Can utilize the micro-molecular gas such as methane that from original material, come out so once more by pyrolysis, make it with treat the pyrolysis material in macromolecular substance combine, improve tar yield.But adopted catalyzed oxidation, increased extra input; Recycle pyrolysis gas has reduced the discharging of methane, greatly reduces finally the calorific value of the coal gas of collecting in the stove.
The utility model content
The utility model provides a kind of tar second pyrolysis at high temperature that reduces to improve the coal cracking equipment of tar yield.
Realize that the utility model purpose improves the coal cracking equipment of tar yield, comprise body of heater, the furnace bottom of said body of heater is provided with and is used to place the material bed of treating the pyrolysis material, is overhead space between said material bed and the furnace bottom, and said material bed is the material bed that ventilates; Said overhead space one side is provided with suction opening, and said suction opening is connected with high-temperature blower and air outlet.
Said body of heater comprises and is provided with the radiator tube that is used to heat in the body of heater at the bottom of furnace wall, furnace roof and the rotary oven, is provided with the water sealed tank that is used to seal between at the bottom of said furnace wall and the rotary oven.
Evenly be provided with intensive aperture on the said material bed.
The diameter of said aperture is 3～8mm, and the hole between centers between the said aperture is 6～11mm.
Preferably, hole diameter is 5mm, and the hole between centers is 8mm.
The beneficial effect of the coal cracking equipment of the raising tar yield of the utility model is following:
The coal cracking equipment of the utility model raising tar yield has improved inner body of heater and air channel structure and has improved the new pyrolysis coal of tar yield and used rotating bed; Through change to rotating bed inner furnace body structure and air channel; Adjusted the gas flow trend in the stove, strengthened thermal field circulation in the stove and the heat effect of material.Pyrolysis gas is forced to see through material bed under the effect of high-temperature blower, strengthens furnace gas and flows, and has accelerated material bed heat transfer; Reduce the secondary bond of the macromolecular radical of former coal cracking generation, caused the situation of secondarily cracking tar, thereby improved raw coal pyrolytic tar yield.
Description of drawings
Fig. 1 is the structural representation of existing coal cracking equipment.
Fig. 2 is the structural representation of another existing coal cracking equipment.
Fig. 3 is the structural representation of coal cracking equipment of the raising tar yield of the utility model.
Embodiment
As shown in Figure 3, the coal cracking equipment of the raising tar yield of the utility model comprises body of heater, and the furnace bottom 2 of said body of heater is provided with the material bed 15 that is used to place material 7, is overhead space 3 between said material bed 15 and the furnace bottom 2, and said material bed 15 is the material bed that ventilates; Said overhead space 3 one sides are provided with suction opening 8, and said suction opening 8 is connected with high-temperature blower 9 and air outlet 10.Said body of heater comprises at the bottom of furnace wall 4, furnace roof 6 and the rotary oven 3, is provided with the radiator tube 5 that is used to heat in the body of heater, is provided with the water sealed tank 1 that is used to seal at the bottom of said furnace wall 4 and the rotary oven between 2.
Evenly be provided with intensive aperture on the said material bed 15.The diameter of said aperture is 3～8mm, and the hole between centers between the said aperture is 6～11mm.Preferably, hole diameter is 5mm, and the hole between centers is 8mm.
Seal by water sealed tank 1 between 2 at the bottom of furnace wall 4 and the rotary oven, make burner hearth and atmospheric isolation.Material 7 is layered on radiator tube 5 heating that are installed on the fixing material bed in the end in the burner hearth, erects certain overhead space 3 by supporting structure between 2 at the bottom of material bed 15 and the rotary oven.On the material bed 15 intensive small structure is set evenly, high-temperature blower 9 is set simultaneously, wherein the suction opening 8 of blower fan 9 is selected in the overhead space 3 at the bottom of the rotary hearth furnace; Operation through high-temperature blower 9; Pyrolysis gas is being extracted out in the process of rotating bed burner hearth by high-temperature blower 9, and gas sees through material 7 from top to bottom, and heat is conducted to material 7; The pyrolysis gas that reaction produces obtains pyrolysis product semicoke, tar, coal gas respectively after cooling.Through this method; Pyrolysis gas is forced to see through material bed under the effect of high-temperature blower, in strengthening the furnace gas process of flowing, has reduced the secondary bond of the macromolecular radical of former coal cracking generation; Cause the situation of secondarily cracking tar, thereby improve raw coal pyrolytic tar yield.
The coal cracking method of the raising tar yield of the utility model is following:
Through fragmentation, screening, exsiccant material (particle diameter is 10～80mm, moisture 8%), get in the gas retort burner hearth through feeding unit, successively through preheating zone and each reaction zone, control preheating zone and each reaction zone temperature are at 550～600 ℃ in stove for material.Material stops about 100min from advancing stove to coming out of the stove altogether in gas retort.The material bed base plate of gas retort is evenly stamped the small sircle hole of size at Φ 5mm, hole between centers 8mm.The coal gas that the material destructive distillation produces sees through material from top to bottom under the effect of high-temperature blower, the inlet feed calorific value is 4200kcal/kg, and through the tar of generation about 9% after the destructive distillation, this tar calorific value is 4500kcal/Nm
3, 18% coal gas, semi-coke yield 62%, the about 6400kcal/kg of semicoke calorific value.
Claims (5)
1. a coal cracking equipment that improves tar yield comprises body of heater, and the furnace bottom of said body of heater is provided with and is used to place the material bed of treating the pyrolysis material, is overhead space between said material bed and the furnace bottom, and said material bed is the material bed that ventilates; Said overhead space one side is provided with suction opening, and said suction opening is connected with high-temperature blower and air outlet.
2. the coal cracking equipment of raising tar yield according to claim 1; It is characterized in that: said body of heater comprises at the bottom of fixed furnace wall, furnace roof and the rotary oven; Be provided with the radiator tube that is used to heat in the body of heater, be provided with the water sealed tank that is used to seal between at the bottom of said furnace wall and the rotary oven.
3. the coal cracking equipment of raising tar yield according to claim 1 and 2 is characterized in that: evenly be provided with intensive aperture on the said material bed.
4. the coal cracking equipment of raising tar yield according to claim 3 is characterized in that: the diameter of said aperture is 3～8mm, and the hole between centers between the said aperture is 6～11mm.
5. the coal cracking equipment of raising tar yield according to claim 4 is characterized in that: said hole diameter is 5mm, and the hole between centers is 8mm.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220151448XU CN202519199U (en) | 2012-04-11 | 2012-04-11 | Coal pyrolysis equipment for improving yield of tar |
| PCT/CN2012/074027 WO2013152508A1 (en) | 2012-04-11 | 2012-04-13 | Coal pyrolysis device and coal pyrolysis method for improving yield of tar |
| GB1416425.5A GB2514514A (en) | 2012-04-11 | 2012-04-13 | Coal pyrolysis device and coal pyrolysis method for improving yield of tar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220151448XU CN202519199U (en) | 2012-04-11 | 2012-04-11 | Coal pyrolysis equipment for improving yield of tar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202519199U true CN202519199U (en) | 2012-11-07 |
Family
ID=47102159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220151448XU Expired - Fee Related CN202519199U (en) | 2012-04-11 | 2012-04-11 | Coal pyrolysis equipment for improving yield of tar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202519199U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634354A (en) * | 2012-04-11 | 2012-08-15 | 北京神雾环境能源科技集团股份有限公司 | Coal pyrolysis device and coal pyrolysis method for improving yield of tar |
| CN103657529A (en) * | 2013-03-27 | 2014-03-26 | 北京神雾环境能源科技集团股份有限公司 | Rotary heating device |
| CN103740390A (en) * | 2014-01-08 | 2014-04-23 | 北京神雾环境能源科技集团股份有限公司 | Coal pyrolysis oil-gas collecting system of heat accumulating type radiation tube rotating furnace |
-
2012
- 2012-04-11 CN CN201220151448XU patent/CN202519199U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634354A (en) * | 2012-04-11 | 2012-08-15 | 北京神雾环境能源科技集团股份有限公司 | Coal pyrolysis device and coal pyrolysis method for improving yield of tar |
| CN103657529A (en) * | 2013-03-27 | 2014-03-26 | 北京神雾环境能源科技集团股份有限公司 | Rotary heating device |
| CN103657529B (en) * | 2013-03-27 | 2016-11-09 | 北京神雾环境能源科技集团股份有限公司 | Rotary heater |
| CN103740390A (en) * | 2014-01-08 | 2014-04-23 | 北京神雾环境能源科技集团股份有限公司 | Coal pyrolysis oil-gas collecting system of heat accumulating type radiation tube rotating furnace |
| CN103740390B (en) * | 2014-01-08 | 2015-10-28 | 北京神雾环境能源科技集团股份有限公司 | A kind of heat accumulation type radiant tube rotary oven pyrolysis of coal oil and gas gathering system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUBEI SHENWU THERMAL ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BEIJING SHENWU ENVIRONMENT + ENERGY TECHNOLOGY CORP. Effective date: 20150515 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 102200 CHANGPING, BEIJING TO: 433000 XIANTAO, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150515 Address after: 433000 No. 1 Wang Ye Road, Liu Kou Industrial Park, Hubei, Xiantao Patentee after: HUBEI SHENWU THERMAL ENERGY TECHNOLOGY CO., LTD. Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee before: Beijing Shenwu Environment Energy Technology Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20190411 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |