CN209854073U - Low-rank coal pyrolysis furnace - Google Patents
Low-rank coal pyrolysis furnace Download PDFInfo
- Publication number
- CN209854073U CN209854073U CN201920122757.6U CN201920122757U CN209854073U CN 209854073 U CN209854073 U CN 209854073U CN 201920122757 U CN201920122757 U CN 201920122757U CN 209854073 U CN209854073 U CN 209854073U
- Authority
- CN
- China
- Prior art keywords
- section
- supporting plate
- preheating
- chains
- coal
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The utility model relates to a low order coal pyrolysis oven, belong to coal pyrolysis technical field, specifically include the furnace body and follow the board-like defeated material mechanism that furnace body length direction arranged, the furnace body is the closed insulation construction, and the upper portion of one end is provided with low order coal feeding storehouse, the lower part is provided with the coal ash discharging pipe, be provided with the drying section in the furnace body, preheat the section of heating, dry distillation section and cooling zone, the drying section, preheat between the section of heating, all be provided with thermal-insulated wall between dry distillation section and the cooling zone, leave the material passageway between thermal-insulated wall and the board-like defeated material mechanism, still be provided with hot carrier gas intake pipe on the furnace body, cold coal gas intake pipe, dry gas collecting pipe and preheating gas collecting pipe, hot carrier gas intake pipe and dry distillation section intercommunication, cold coal gas intake pipe and cooling section intercommunication, dry gas collecting pipe and drying section intercommunication, preheating; the utility model discloses simple structure, convenient to use collects the drying, preheats intensification, pyrolysis, cooling in an organic whole, cyclic utilization pyrolysis coal gas.
Description
Technical Field
The utility model relates to a low order coal pyrolysis oven belongs to coal pyrolysis technical field.
Background
China is a country with poor oil, less gas and relatively more coal, the residual exploitable reserve of oil is only 24 hundred million tons, the backup resources of oil are seriously insufficient, the crude oil import of China exceeds 2.8 hundred million tons in 2013, and the dependence on overseas oil reaches 58%. At present, the demand of economic development in Asian regions on petrochemical products is greatly increased, and a plurality of petroleum and chemical products in China also need to be filled up by imports at present, however, petroleum resources are basically monopolized by strong countries, and the production cost of the petrochemical products is also continuously increased along with the continuous increase of the international energy demand. On the contrary, the detected coal reserves in China are 1 trillion tons, the annual coal yield is about 37 billion tons, and the high-efficiency clean coal chemical technology is adopted to replace petroleum resources, so that the method has important significance on economic development, environmental protection and ecological balance in China.
At present, the utilization of coal in China is mainly single utilization, including direct combustion, gasification and liquefaction with low utilization efficiency. In order to improve the high conversion rate of coal, a complex process and severe operating conditions are often required, so that the conversion process is complex, equipment is huge, and the investment and production cost are greatly improved. The low-rank coal has high volatile components, can be used for producing resources such as oil, gas and the like, reasonably utilizes the low-rank coal to recycle the coal, and has great significance in producing energy substitute products and economic value products.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem that prior art exists, the utility model provides a simple structure, convenient to use collects the drying, preheats intensification, pyrolysis, cooling in an organic whole, a low order coal pyrolysis oven of cyclic utilization pyrolysis coal gas.
In order to achieve the purpose, the technical scheme adopted by the utility model is a low-rank coal pyrolysis furnace, which comprises a furnace body and a plate-type conveying mechanism arranged along the length direction of the furnace body, wherein the furnace body is of a closed heat preservation structure, the upper part of one end of the furnace body is provided with a low-rank coal feeding bin, the lower part of the furnace body is provided with a coal ash discharging pipe, the furnace body is internally provided with a drying section, a preheating and heating section, a destructive distillation section and a cooling section, the drying section and the preheating and heating section are positioned above the plate-type conveying mechanism, the destructive distillation section and the cooling section are positioned below the plate-type conveying mechanism, heat insulation walls are respectively arranged between the drying section, the preheating and heating section and between the destructive distillation section and the cooling section, a material channel is reserved between the heat insulation walls and the plate-type conveying mechanism, the furnace body is also provided with a hot carrier gas inlet pipe, a cold gas inlet pipe, a, the cold gas inlet pipe is communicated with the cooling section, the dry gas collecting pipe is communicated with the drying section, and the preheating gas collecting pipe is communicated with the preheating temperature rise section; the plate type material conveying mechanism is used for conveying low-rank coal to a drying section, a preheating and temperature-raising section, a dry distillation section and a cooling section in sequence for drying, preheating and temperature-raising, dry distillation and cooling processes.
Preferably, defeated material mechanism of board-like mainly comprises pivot, chain, link joint, upper grid layer board and lower grid layer board, two the pivot is installed at the both ends of furnace body, install two chains between the pivot, install on the sprocket at the both ends of chain, the sprocket is installed in the pivot, install driving motor in the pivot, install a plurality of link joints between the chain, the link joint articulates on the round pin axle of chain, upper portion chain below in the chain is installed to the upper grid layer board for holding up upper portion chain, lower grid layer board is installed in the chain lower part chain below for holding up lower part chain, upper grid layer board and lower grid layer board are fixed respectively in the furnace body, be provided with the gas distribution hole on the link joint, the one end of upper grid layer board is provided with V type unloading groove.
Preferably, two ends of the upper grating supporting plate and the lower grating supporting plate are provided with transition inclined planes.
Preferably, the chain plates are in a horizontal state when being supported by the upper grid supporting plate and the lower grid supporting plate, the plurality of chain plates are sequentially spliced to form the material supporting plate, and the chain plates are in a vertical state when not being supported for blanking.
Preferably, the upper grid supporting plate and the lower grid supporting plate are arranged in a staggered mode, and the lower grid supporting plate deviates towards the direction of the V-shaped discharging groove.
Preferably, the number of the air distribution holes is 2, and the air distribution holes are long holes, and the arrangement direction of the long holes is perpendicular to the length direction of the chain plate.
Compared with the prior art, the utility model discloses following technological effect has: the utility model discloses simple structure, high durability and convenient use, adopt the heating methods of the interior hot type of burning outward, the hot carrier gas that produces burning lets in the dry distillation section of pyrolysis furnace, carry out the dry distillation to the low order buggy, the crude gas that the dry distillation produced gets into to preheat the section of rising the temperature and preheats the low order buggy and heaies up, then get into spray column and separate tar and clean coal gas, then let in clean coal gas cooling section to upgrading the coal and cool down, the coal gas through the heat exchange gets into the drying section simultaneously, carry out the dry dehydration to the low order buggy, then let in the hot-blast furnace burning with coal gas, the high temperature flue gas that the burning produced gets into the dry distillation section as the hot carrier gas, whole furnace body collection is dry, preheat the intensification, the pyrolysis, cool off in an organic whole, and easy operation, the running cost. And through the optimized gas distribution mode and structure, the pressure drop of the furnace body is reduced, the heating and cooling are more uniform, and the heat efficiency is high.
In addition, the plate type material conveying mechanism has simple structure and mechanical operation, and realizes continuous mechanical conveying and reciprocating transportation; the heat utilization rate of the pyrolysis system is increased, the occupied area of the whole system is reduced, the problems of continuous operation, low heat utilization rate and large occupied area of the pyrolysis system are well solved, and more importantly, the production efficiency of the pyrolysis system is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the middle plate type feeding mechanism of the present invention.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in figure 1, a low-rank coal pyrolysis furnace comprises a furnace body 1 and a plate type material conveying mechanism 2 arranged along the length direction of the furnace body, wherein the furnace body 1 is of a closed heat preservation structure, the upper part of one end is provided with a low-rank coal feeding bin 24, the lower part is provided with a coal ash discharging pipe 3, the furnace body 1 is internally provided with a drying section 4, a preheating temperature-raising section 5, a dry distillation section 6 and a cooling section 7, the drying section 4 and the preheating temperature-raising section 5 are positioned above the plate type material conveying mechanism 2, the dry distillation section 6 and the cooling section 7 are positioned below the plate type material conveying mechanism 2, heat insulation walls 8 are respectively arranged between the drying section 4 and the preheating temperature-raising section 5 and between the dry distillation section 6 and the cooling section 7, a material channel 9 is reserved between each heat insulation wall 8 and the plate type material conveying mechanism 2, the furnace body 1 is also provided with a hot carrier gas inlet pipe 10, a cold coal gas inlet pipe 11, a dry gas collector, a cold gas inlet pipe 11 is communicated with the cooling section 7, a dry gas collecting pipe 12 is communicated with the drying section 4, and a preheating gas collecting pipe 13 is communicated with the preheating temperature rising section 5; the plate type conveying mechanism 2 is used for conveying low-rank coal to a drying section 4, a preheating and temperature-raising section 5, a dry distillation section 6 and a cooling section 7 in sequence for drying, preheating and temperature-raising, dry distillation and cooling processes.
Wherein, as shown in fig. 2 to 3, the plate type material conveying mechanism 2 mainly comprises a rotating shaft 14, chains 15, chain plates 16, an upper grid supporting plate 17 and a lower grid supporting plate 18, the two rotating shafts 14 are arranged at two ends of the furnace body 1, two chains 15 are arranged between the rotating shafts 14, two ends of the chains 15 are arranged on chain wheels 19, the chain wheels 19 are arranged on the rotating shafts 14, a driving motor 20 is arranged on the rotating shafts 14, a plurality of chain plates 16 are arranged between the chains 15, the chain plates 16 are hinged on pin shafts of the chains 15, the upper grid supporting plate 17 is arranged below the middle upper part of the chains 15, the lower grid supporting plate 18 is arranged below the middle lower chain of the chain and used for supporting the lower chain, the upper grid supporting plate 17 and the lower grid supporting plate 18 are respectively fixed in the furnace body 1, the chain plate 16 is provided with an air distribution hole 21, and one end of the upper grid supporting plate 17 is provided with a V-shaped lower chute 22.
The utility model discloses when using, link joint 16 is the horizontality by last grid layer board 17 and lower grid layer board 18 when holding in the palm, and a plurality of link joints splice in proper order and form the material layer board, and link joint 16 is vertical state when not held in the palm for the unloading. The low-rank coal powder is loaded into a low-rank coal feeding bin 2, falls on a material supporting plate formed by chain plates, moves along with the chain plates and sequentially enters a drying section 4 and a preheating and temperature raising section 5; when the chain plate moves to the V-shaped blanking groove 22, the bottom of the chain plate 16 is short of support, the chain plate 16 is gradually changed from a horizontal state to a vertical state, then the vertical state is gradually changed to the horizontal state, in the process, the low-rank coal powder falls into the V-shaped blanking groove 22 and finally falls onto the chain plate 16 of the lower chain, and then sequentially enters the dry distillation section 6 and the cooling section 7 along with the chain plate; when the chain plate moves to the top of the coal ash discharge pipe 3, the chain plate is changed from a horizontal state to a vertical state, and the generated upgraded coal falls into the coal ash discharge pipe 3. The two ends of the upper grid supporting plate 17 and the lower grid supporting plate 18 are provided with transition inclined surfaces 23, the transition inclined surfaces 23 can enable the chain plates to be in stable transition, and the chain plates are shaped and the blanking effect is improved.
In addition, the upper grid supporting plate 17 and the lower grid supporting plate 18 are arranged in a staggered mode, and the lower grid supporting plate 18 deviates towards the direction of the V-shaped blanking groove 22. The number of the air distribution holes 21 is 2, the specific number can be determined according to actual conditions, the air distribution holes are long holes, and the arrangement direction of the long holes is perpendicular to the length direction of the chain plate 16, so that the pulverized coal can fall off, and meanwhile, air in the cavity can pass through the air distribution holes.
The utility model discloses a technology is utilized in grades specifically: the plate type conveying mechanism conveys the low-rank coal to a drying section, a preheating and heating section, a dry distillation section and a cooling section in sequence for drying, preheating and heating, dry distillation and cooling processes; clean high-temperature hot carrier gas enters a dry distillation section through a hot carrier gas inlet pipe to dry distill the coal powder, the dry distillation generates upgraded coal and crude gas, the crude gas and part of the hot carrier gas enter a preheating and temperature-raising section through gas distribution holes, the low-rank coal in the preheating and temperature-raising section is preheated and heated, then the crude gas and part of the hot carrier gas enter a spray tower through a preheating gas collecting pipe, tar and clean gas are separated, one part of the clean gas enters subsequent processing equipment, and the other part of the clean gas is used as cold gas to cool the upgraded coal generated by the dry distillation through a cooling section; and meanwhile, cold coal gas enters the drying section through the gas distribution holes to dry the low-rank coal, the low-rank coal enters the hot blast stove for combustion through the drying gas collecting pipe after drying is finished, high-temperature flue gas generated by combustion serves as hot carrier gas and enters the dry distillation section through the hot carrier gas inlet pipe, and the process is circulated.
In the whole process, the temperature of the dry distillation section is 700-730 ℃; raw gas generated by dry distillation enters a preheating and temperature-raising section, so that the temperature of the preheating and temperature-raising section is 400-; the cooled clean coal gas enters a cooling section to exchange heat with the upgraded coal, so that the temperature of the cooling section is 75-330 ℃, and the coal gas after heat exchange enters a drying section, so that the temperature of the drying section is 75-120 ℃.
The foregoing is considered as illustrative and not restrictive of the preferred embodiments of the invention, and any modifications, equivalents and improvements made within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. A low order coal pyrolysis furnace which is characterized in that: the dry-type coal stove comprises a stove body and a plate-type conveying mechanism arranged along the length direction of the stove body, wherein the stove body is of a closed heat-preservation structure, the upper part of one end of the stove body is provided with a low-rank coal feeding bin, the lower part of the stove body is provided with a coal ash discharging pipe, a drying section, a preheating and temperature-raising section, a dry distillation section and a cooling section are arranged in the stove body, the drying section and the preheating and temperature-raising section are arranged above the plate-type conveying mechanism, the dry distillation section and the cooling section are arranged below the plate-type conveying mechanism, heat-insulating walls are respectively arranged between the drying section and the preheating and temperature-raising section and between the dry distillation section and the cooling section, a material channel is reserved between the heat-insulating walls and the plate-type conveying mechanism, the stove body is also provided with a hot carrier gas inlet pipe, a cold gas inlet pipe, a dry gas collecting pipe and a preheating gas collecting, the preheating gas collecting pipe is communicated with the preheating temperature rise section; the plate type material conveying mechanism is used for conveying low-rank coal to a drying section, a preheating and temperature-raising section, a dry distillation section and a cooling section in sequence for drying, preheating and temperature-raising, dry distillation and cooling processes.
2. The low-rank coal pyrolysis furnace of claim 1, wherein: the plate-type material conveying mechanism mainly comprises a rotating shaft, chains, chain plates, an upper grid supporting plate and a lower grid supporting plate, wherein the rotating shaft is arranged at two ends of a furnace body, the two chains are arranged between the rotating shafts, two ends of the chains are arranged on chain wheels, the chain wheels are arranged on the rotating shafts, driving motors are arranged on the rotating shafts, a plurality of chain plates are arranged between the chains, the chain plates are hinged to pin shafts of the chains, the upper grid supporting plate is arranged below the upper portion chains in the chains and used for supporting the upper portion chains, the lower grid supporting plate is arranged below the lower portion chains in the chains and used for supporting the lower portion chains, the upper grid supporting plate and the lower grid supporting plate are respectively fixed in the furnace body, gas distribution holes are formed in the chain plates, and a V-shaped discharging groove is formed.
3. The low-rank coal pyrolysis furnace of claim 2, wherein: and transition inclined planes are arranged at two ends of the upper grating supporting plate and the lower grating supporting plate.
4. The low-rank coal pyrolysis furnace of claim 2, wherein: the chain plates are in a horizontal state when being supported by the upper grid supporting plate and the lower grid supporting plate, the plurality of chain plates are sequentially spliced to form the material supporting plate, and the chain plates are in a vertical state when not being supported for blanking.
5. The low-rank coal pyrolysis furnace of claim 2, wherein: the upper grid supporting plate and the lower grid supporting plate are arranged in a staggered mode, and the lower grid supporting plate deviates towards the direction of the V-shaped discharging groove.
6. The low-rank coal pyrolysis furnace of claim 2, wherein: the number of the air distribution holes is 2, the air distribution holes are long holes, and the arrangement direction of the long holes is perpendicular to the length direction of the chain plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920122757.6U CN209854073U (en) | 2019-01-24 | 2019-01-24 | Low-rank coal pyrolysis furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920122757.6U CN209854073U (en) | 2019-01-24 | 2019-01-24 | Low-rank coal pyrolysis furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209854073U true CN209854073U (en) | 2019-12-27 |
Family
ID=68930883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920122757.6U Withdrawn - After Issue CN209854073U (en) | 2019-01-24 | 2019-01-24 | Low-rank coal pyrolysis furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209854073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679673A (en) * | 2019-01-24 | 2019-04-26 | 山西国控环球工程有限公司 | A kind of low order coal heat decomposition stove and its classified utilization technique |
-
2019
- 2019-01-24 CN CN201920122757.6U patent/CN209854073U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679673A (en) * | 2019-01-24 | 2019-04-26 | 山西国控环球工程有限公司 | A kind of low order coal heat decomposition stove and its classified utilization technique |
| CN109679673B (en) * | 2019-01-24 | 2023-09-22 | 上海电气集团国控环球工程有限公司 | Low-rank coal pyrolysis furnace and grading utilization process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2937132Y (en) | Industrial continuous waste tire cracking device | |
| CN103666507B (en) | Internally heated coal carbonization furnace, internally heated coal carbonization system and coal carbonization technical method | |
| CN104073263B (en) | Heat accumulating type rotating bed low-temperature carbonization system and technique | |
| CN102757805B (en) | Low-temperature dry distillation equipment and method of low-rank coal and oil shale and petroleum residue | |
| US8945349B2 (en) | Electrical heating coal material decomposition apparatus | |
| EP2607453B1 (en) | Vertical pyrolysis equipment for coal substance | |
| CN204824726U (en) | Coal low temperature pyrolysis system | |
| CN102757800B (en) | Low-temperature dry distillation equipment and method for low-rank coal and oil shale | |
| CN105694935B (en) | Dry distillation and activation integrated furnace for pulverized coal | |
| CN101289622B (en) | Process for upgrading of bovey coal by solid thermal-loading suspending pyrogenation device of bovey coal | |
| CN108587659A (en) | A kind of energy conservation and environmental protection single tube vertical retort | |
| CN209854073U (en) | Low-rank coal pyrolysis furnace | |
| CN106147812A (en) | Horizontal multistage internal heat type carbonization destructive distillation device and method for destructive distillation | |
| CN103571508B (en) | Continuous heat accumulating type dry distillation technology and dry distillation furnace | |
| CN109679673B (en) | Low-rank coal pyrolysis furnace and grading utilization process thereof | |
| CN211665000U (en) | Composite heating type moving bed pyrolysis reaction device for coal with wide particle size distribution, parallel groups thereof, series groups thereof and series combination of parallel groups | |
| CN204644266U (en) | The full circulation carbonization furnace that a kind of destructive distillation is lower-grade metamorphic bituminous | |
| CN202124594U (en) | Heat accumulating type external heating medium-temperature and low-temperature coal pyrolyzing furnace | |
| CN209854069U (en) | Plate type continuous conveying and transferring device for pyrolysis furnace | |
| CN104531195B (en) | A kind of external-heat oil shale distillation process | |
| CN106010610A (en) | Low-order pulverized coal hydrogenated and pressurized fast low-temperature carbonization process and device | |
| CN104762096A (en) | Gas guide unit, gas guide device, coal powder pyrolysis device and coal powder pyrolysis method | |
| CN1810929A (en) | Coal gas-recovering economizing clean coking process | |
| CN204509202U (en) | Gas-conducting cells, gas operated device and pulverized coal pyrolysis device | |
| CN107937007A (en) | A kind of three-stage coal dust and biomass pyrolytic processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 030024 No. 3, East First Lane, Houwang Street, Wanbailin District, Taiyuan City, Shanxi Province Patentee after: Shanghai Electric Group guokong Global Engineering Co.,Ltd. Address before: 030024 No. 3, East First Lane, Houwang Street, Wanbailin District, Taiyuan City, Shanxi Province Patentee before: SHANXI GUOKONG GLOBE ENGINEERING Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191227 Effective date of abandoning: 20230922 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191227 Effective date of abandoning: 20230922 |