CN205974357U - High temperature multitube gyration coupling retort pyrolysis system that stands vertically - Google Patents
High temperature multitube gyration coupling retort pyrolysis system that stands vertically Download PDFInfo
- Publication number
- CN205974357U CN205974357U CN201621003698.3U CN201621003698U CN205974357U CN 205974357 U CN205974357 U CN 205974357U CN 201621003698 U CN201621003698 U CN 201621003698U CN 205974357 U CN205974357 U CN 205974357U
- Authority
- CN
- China
- Prior art keywords
- gas
- rotary kiln
- coal
- carbonization furnace
- high temperature
- 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.)
- Active
Links
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The utility model provides a high temperature multitube gyration coupling retort pyrolysis system that stands vertically, including the flue gas stove that connects gradually, outer hot type rotary kiln, the retort of standing vertically, the high temperature flue gas that the flue gas stove produced passes through the outer hot type rotary kiln inner chamber of flue gas inlet entering of outer hot type rotary kiln, the export of the coal gas of outer hot type rotary kiln is connected with the gas inlet of retort upright, and this system combines outer hot type rotary kiln and traditional upright retort together, the heat source is done to the coal gas that utilizes upright retort pyrolysis to produce, has realized through outer hot type rotary kiln that < the conversion of 20mm coal, the oil gas that the pyrolysis produced gets into upright retort, utilizes the granule bed in the stove to filter, has solved the raw coke oven gas that the fine coal pyrolysis produced and has separated a difficult problem rather than the dust gas -solid of carrying secretly.
Description
Technical field
This utility model is related to coal and is classified a kind of pyrolysis system that sub-prime converts field, more particularly, to a kind of high temperature multiple pipe
Revolution coupling upright carbonization furnace pyrolysis system.
Background technology
The endowment of resources feature of China's " rich coal, oil-poor, few gas " determines some time to come and still occupies energy with coal
The leading position of source consumption, but in coal, contain more volatile matters, direct burning not only wastes the volatile matters of high added value,
And discharge substantial amounts of sulfur dioxide and nitrogen oxides, heavy damage ecological environment.Therefore, coal is carried out being classified at sub-prime
Reason, is to realize Coal Clean efficient utilization, the effective way curbed environmental pollution.
Upright carbonization furnace is to apply a kind of more universal coal classification sub-prime transformation technology, the coal that it is produced with pyrolyzing
Gas does fuel, and the high-temperature flue gas of generation are inversely contacted with coal, makes coal issue heat solution in 500～800 DEG C of high temperature, by coal
In volatile matters be converted into burnt oil and gas, from top discharge.This technology has the advantages that structure is simple, tar light component is high,
But in order to ensure that the bed of material has enough breathability, retort must be using the coal of more than 20mm as raw material, remaining a large amount of fine coal
Cannot process；Meanwhile, the coal gas amount that upright carbonization furnace pyrolysis produces is larger, calorific value is relatively low, and itself is only with 40～50%, great Liang Mei
Gas is superfluous, and energy waste problem is serious.
Pulverized coal pyrolysis technology for ＜ 20mm is numerous, such as solid heat carrier method fast pyrolysis process, circulating gas medium-
Solid thermal carriers fluidized bed pyrolysis technique etc., but above pyrolysis of coal technology is all not implemented industrial applications, and main cause is：1st, powder
There is investment height, the low problem of efficiency in the dust gas solid separation that the raw coke oven gas that pyrolysis of coal produces is carried secretly with it；2nd, pulverized coal pyrolysis institute
High-quality heat is needed to be difficult to obtain.
Content of the invention
For solving problem present in above-mentioned coal classification sub-prime trans-utilization, the utility model proposes a kind of high temperature is many
Pipe revolution coupling upright carbonization furnace pyrolysis system.External-heating rotary kiln is combined one by this system with traditional upright carbonization furnace
Rise, learn from other's strong points to offset one's weaknesses, do thermal source using the coal gas that upright carbonization furnace pyrolysis produces, ＜ 20mm coal is achieved by external-heating rotary kiln
The conversion of charcoal, the oil gas that pyrolysis produces enters upright carbonization furnace, is filtered using the particle layers in stove, solves fine coal heat
The dust gas solid separation difficult problem that the raw coke oven gas that solution produces is carried secretly with it.
This utility model provide technical scheme be：
A kind of high temperature multiple pipe revolution coupling upright carbonization furnace pyrolysis system it is characterised in that：Including the flue gas being sequentially connected
Stove, external-heating rotary kiln, upright carbonization furnace, the gas approach by external-heating rotary kiln for the high-temperature flue gas that described combustion gas furnace produces
Enter external-heating rotary kiln inner chamber, the gas exit of described external-heating rotary kiln is connected with the gas inlet of upright carbonization furnace.
Further, in order that fine coal and high-temperature flue gas mediate contact, in described external-heating rotary kiln uniformly some do
Evaporate pipe, fine coal rotation with external-heating rotary kiln in this some dry distilling pipes is moved to discharge end.
Further, move forward for the ease of fine coal, setting helical blade in described dry distilling pipe.
Further, the dehydration in order that fine coal entering before external-heating rotary kiln heats up, and be easy to deliver into outward
Heating revolving kiln, the feed end of described external-heating rotary kiln is sequentially connected conveyer and mobile drying bed.
Further, deliver into external-heating rotary kiln for the ease of fine coal, described conveyer is conveying worm.
Further, for the ease of out and making full use of through the flue gas of external-heating rotary kiln, described external-heat returns
The exhanst gas outlet of rotary kiln is sequentially connected waste heat boiler and smoke induced draught fan.
Further, in order that the raw coke oven gas that upright carbonization furnace is discharged cools, the coal gas of described upright carbonization furnace goes out
Mouth connects circulating washing tower, and described circulating washing tower is sequentially connected recycle oil cooler, oil circulating pump, circulating oil tank, circulation washing
The bottom of tower is connected with circulating oil tank.
Further, discharge for the ease of residual gas and carry out purified treatment, described circulating washing tower upper end connects coal gas
Air-introduced machine.
The beneficial effects of the utility model are：
1. a kind of high temperature multiple pipe of utility model revolution coupling upright carbonization furnace pyrolytic process is it is achieved that the classification of coal divides
Matter is processed；
2. upright carbonization furnace solves the too high problem of raw coke oven gas dust content of pulverized coal pyrolysis technique presence.Using upright charcoal
Change the particle layers in stove, high temperature raw coke oven gas is filtered, effectively reduces the dust content in raw coke oven gas, improve tar
Quality with coal gas；
3. high temperature multiple pipe rotary kiln the excessive low-heat value gas that upright carbonization furnace is pyrolyzed out is used for pulverized coal pyrolysis it is achieved that
The making full use of of energy；
4. high temperature multiple pipe rotary kiln adopts built-in many dry distilling pipes, and heat exchange area is bigger, and unit volume heat transfer intensity is higher,
Unit volume treating capacity is bigger.
The operation principle of the high temperature multiple pipe revolution coupling upright carbonization furnace pyrolysis system that this utility model provides is as follows：
1）Fine coal is conveyed into moving bed is dried, carry out rising gentle dehydration；
2）Through step 1）Dried fine coal enters external-heating rotary kiln through conveying worm, and is distributed on many dry distilling pipes
Interior, rotate with external-heating rotary kiln under dry distilling pipe internal helical blades and self gravitation effect, and move forward；
3）Meanwhile, the high-temperature flue gas that combustion gas furnace burning coal gas produces enter external-heating rotary kiln, high-temperature flue gas and external-heat
Fine coal mediate contact within dry distilling pipe in rotary kiln；
4）Dried fine coal is through step 3）The raw coke oven gas that pyrolysis produces enters upright carbonization furnace, and semicoke is from external-heating revolving
Kiln tail portion discharges；
5）Lump coal enters furnace interior from upright carbonization furnace top, directly connects with raw coke oven gas and flue gas during moving down
Touch, heat and mass, pyrolytic reaction occurs, the raw coke oven gas of generation leaves from the gas exit of upright carbonization furnace, and semicoke is from upright charcoal
Change stove 7 bottom to discharge；
6）Raw coke oven gas after filtering through the particle layers in upright carbonization furnace, exits into from upright carbonization furnace gas exit
Circulating washing tower, and recycle oil directly contact, cooling, the tar in raw coke oven gas cools down and enters in recycle oil, residual gas from
Circulating washing tower top is left and is entered subsequent purification processing system through coal gas air-introduced machine.
Described step 1）After middle fine coal intensification dehydration, temperature is between 50～150 DEG C.
Described step 2）Dry distilling pipe diameter is between 100～1000mm.
Described step 3）The high-temperature flue-gas that middle combustion gas furnace burning produces are between 600～1000 DEG C.
Described step 4）Raw coke oven gas enters upright carbonization furnace temperature between 450～700 DEG C.
Described step 4）Semicoke discharge temperature is between 450～700 DEG C.
Described step 5）Semicoke discharge temperature is between 500～800 DEG C.
Described step 6）The mass ratio of recycle oil and raw coke oven gas is 1：1 and 5:Between 1, the coal gas that leaves from scrubbing tower top
Temperature is between 30～50 DEG C.
Described step 6）Raw coke oven gas leaves temperature between 80～150 DEG C from upright carbonization furnace gas exit, raw coke oven gas powder
Dust content ＜ 100mg/m3.
Described fine coal diameter ＜ 20mm, lump coal diameter ＞ 20mm.
Brief description
Fig. 1 is the schematic diagram of the high temperature multiple pipe revolution coupling upright carbonization furnace pyrolysis system that this utility model provides；
Wherein 1. combustion gas furnaces；2. mobile drying bed；3. conveyer；4. external-heating rotary kiln；5. waste heat boiler；6. flue gas draws
Blower fan；7. upright carbonization furnace；8. circulating washing tower；9. recycle oil cooler；10. oil circulating pump；11. circulating oil tank；12. coal gas draw
Blower fan；13. coal gas；14. fine coal；15. semicokes；16. semicokes；17. lump coal；18. high-temperature flue gas；19. raw coke oven gas；20. raw coke oven gas.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is described further.
Referring to Figure of description 1, the high temperature multiple pipe revolution coupling upright carbonization furnace pyrolysis system that this utility model provides, knot
External-heating rotary kiln and traditional upright carbonization furnace system are closed.
A kind of high temperature multiple pipe revolution coupling upright carbonization furnace pyrolysis system, the combustion gas furnace 1 being sequentially connected, external-heating rotary kiln
4th, upright carbonization furnace 7, the high-temperature flue gas that combustion gas furnace 1 produces enter external-heating revolving by the gas approach of external-heating rotary kiln 4
Kiln 4 inner chamber, the gas exit of external-heating rotary kiln 4 is connected with the gas inlet of upright carbonization furnace 7, general external-heating rotary kiln
4 gas exit by pipeline be connected to upright carbonization furnace 7 the latter half.
Described external-heating rotary kiln 4 left side is feed end, and right side is discharge end, and the coal dust import of feed end is used for receiving defeated
Send machine 3 coal dust that conveying comes, discharge end bottom is used for discharging the semicoke 15 after being pyrolyzed, top for discharging the famine that pyrolysis produces
Coal gas 19.External-heating rotary kiln 4 inner chamber uniformly many dry distilling pipes, the gas approach of external-heating rotary kiln 4 connects combustion gas furnace 1, outward
The fine coal import of heating revolving kiln 4 feed end is sequentially connected conveyer 3 and mobile drying bed 2；Coal gas 13 after purification enters cigarette
Steam stove 1 burning produces high-temperature flue gas 18 and enters external-heating rotary kiln 4 inner chamber；The fine coal 14 that diameter is less than 20mm enters mobile drying
Bed 2 carries out the dehydration that heats up, and then delivers in the dry distilling pipe of external-heating rotary kiln 4 through conveyer 3, in dry distilling pipe internal coiling leaf
Rotate with external-heating rotary kiln under piece and self gravitation effect, and move forward；So high-temperature flue gas and dried fine coal connect indirectly
Touch.
When mobile drying bed 2 carries out intensification dehydration, input low-pressure steam, discharge condensed water.
Deliver into external-heating rotary kiln for the ease of fine coal, conventional conveyer 3 is conveying worm.
For the ease of out and making full use of through the flue gas of external-heating rotary kiln 4, the cigarette of described external-heating rotary kiln 4
Gas outlet is sequentially connected waste heat boiler 5 and smoke induced draught fan 6.
Further, the top of described upright carbonization furnace 7 has lump coal import, and lump coal 17 is with diameter greater than 20mm, described
The gas exit of upright carbonization furnace 7 connects circulating washing tower 8, and the first half of described circulating washing tower 8 is sequentially connected circulation oil-cooling
Device 9, oil circulating pump 10, circulating oil tank 11, the bottom of circulating washing tower 8 is connected with circulating oil tank 11, circulating washing tower 8 top
Connect coal gas air-introduced machine 12.So, the raw coke oven gas entering circulating washing tower 8 moves, from lower to upper with recycle oil directly contact, fall
Temperature, the tar in raw coke oven gas cools down and enters in recycle oil, and residual gas leave through coal gas air-introduced machine from circulating washing tower 8 top
12 entrance subsequent purification processing systems, the coal gas after purification can be used for pulverized coal pyrolysis in external-heating rotary kiln 4 as thermal source, realize
The making full use of of energy.
Specifically, fine coal 14 is delivered into and moving bed 2 is dried, fine coal 14 be dried in moving bed 2 carry out rise gently take off
Water, after making fine coal intensification dehydration, temperature is between 50～150 DEG C；Fine coal is delivered into and the equipment of moving bed is dried can adopt
The conventional equipment of prior art, such as screw(-type) feeder, conveying worm.
Dried fine coal is discharged by moving drying bed 2, delivers into external-heating rotary kiln 4 through conveyer 3, external-heat returns
Rotary kiln 4 has many dry distilling pipes, and dried fine coal is distributed in many dry distilling pipes, fine coal dry distilling pipe internal helical blades and from
Rotate with rotary kiln under body action of gravity and move forward, dry distilling pipe diameter is between 100～1000mm；
Meanwhile, the coal gas 13 after purification enters combustion gas furnace 1, enters through the high-temperature flue gas 18 that combustion gas furnace 1 burning coal gas produces
Fine coal mediate contact within dry distilling pipe in external-heating rotary kiln 4, with external-heating rotary kiln 4, and, combustion gas furnace 1 burning coal gas
High-temperature flue gas 18 temperature of 13 generations is between 600～1000 DEG C.High-temperature flue gas 18 are after external-heating rotary kiln 4 circulation by exterior-heat
The exhanst gas outlet of formula rotary kiln 4 is discharged into waste heat boiler 5, and waste heat boiler 5 connects smoke induced draught fan 6.
Fine coal is pyrolyzed the discharge end top coal through external-heating rotary kiln 4 for the raw coke oven gas 19 producing in external-heating rotary kiln 4
Gas outlet is discharged, and enters upright carbonization furnace 7 afterwards, and raw coke oven gas enters upright carbonization furnace 7 temperature between 450～700 DEG C, produces
Semicoke 15 from external-heating rotary kiln 7 discharge end bottom discharge, semicoke 15 discharge temperature is between 450～700 DEG C.
Meanwhile, the lump coal import from upright carbonization furnace 7 top for the lump coal 17 enters furnace interior, with waste coal during moving down
Gas and flue gas directly contact, heat and mass, there is pyrolytic reaction, raw coke oven gas 20 exits into from upright carbonization furnace 7 gas exit
Circulating washing tower 8, semicoke 16 is discharged from upright carbonization furnace 7 bottom, and semicoke 16 discharge temperature is between 500～800 DEG C.
The described raw coke oven gas 20 leaving from upright carbonization furnace 7 top filters laggard through the particle layers in upright carbonization furnace
Enter circulating washing tower 8, and recycle oil directly contact, cooling, the tar in raw coke oven gas cools down and enters in recycle oil, residual gas
Leave from scrubbing tower top and enter subsequent purification processing system through coal gas air-introduced machine 12, the coal gas after purification can be used for as thermal source
Pulverized coal pyrolysis in external-heating rotary kiln 4；Raw coke oven gas 20 leaves temperature between 80～150 DEG C from upright carbonization furnace 7 top, waste coal
Gas dust content ＜ 100mg/m3；The mass ratio of recycle oil and raw coke oven gas is 1：1 and 5:Between 1, leave from scrubbing tower top
Gas temperature is between 30～50 DEG C.Described circulating washing tower 8 connects recycle oil cooler 9, oil circulating pump 10 and circulating oil tank 11.
Above-described fine coal 14 diameter ＜ 20mm, lump coal 17 diameter ＞ 20mm.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect
Step describes in detail, be should be understood that and the foregoing is only specific embodiment of the utility model, is not limited to this
Utility model, all of the present utility model spirit and principle within, any modification, equivalent substitution and improvement done etc., all should wrap
It is contained within protection domain of the present utility model.
Claims (8)
1. a kind of high temperature multiple pipe revolution coupling upright carbonization furnace pyrolysis system it is characterised in that：Including the combustion gas furnace being sequentially connected
（1）, external-heating rotary kiln（4）, upright carbonization furnace（7）, described combustion gas furnace（1）The high-temperature flue gas producing pass through external-heating rotary kiln
（4）Gas approach enter external-heating rotary kiln（4）Inner chamber, described external-heating rotary kiln（4）Gas exit and upright carbonization
Stove（7）Gas inlet be connected.
2. high temperature multiple pipe according to claim 1 revolution coupling upright carbonization furnace pyrolysis system it is characterised in that：Described outer
Heating revolving kiln（4）Inside uniform some dry distilling pipes, fine coal is in this some dry distilling pipes with external-heating rotary kiln（4）Rotation
Move to discharge end.
3. high temperature multiple pipe according to claim 2 revolution coupling upright carbonization furnace pyrolysis system it is characterised in that：Described dry
Evaporate setting helical blade in pipe.
4. high temperature multiple pipe according to claim 3 revolution coupling upright carbonization furnace pyrolysis system it is characterised in that：Described outer
Heating revolving kiln（4）Feed end be sequentially connected conveyer（3）With mobile drying bed（2）.
5. high temperature multiple pipe according to claim 4 revolution coupling upright carbonization furnace pyrolysis system it is characterised in that：Described defeated
Send machine（3）For conveying worm.
6. high temperature multiple pipe according to claim 5 revolution coupling upright carbonization furnace pyrolysis system it is characterised in that：Described outer
Heating revolving kiln（4）Exhanst gas outlet be sequentially connected waste heat boiler（5）And smoke induced draught fan（6）.
7. the high temperature multiple pipe revolution coupling upright carbonization furnace pyrolysis system according to claim 1-6 any claim, its
It is characterised by：Described upright carbonization furnace（7）Gas exit connect circulating washing tower（8）, described circulating washing tower（8）Connect successively
Connect recycle oil cooler（9）, oil circulating pump（10）, circulating oil tank（11）, circulating washing tower（8）Bottom and circulating oil tank（11）Phase
Connect.
8. high temperature multiple pipe according to claim 7 revolution coupling upright carbonization furnace pyrolysis system it is characterised in that：Described follow
Ring scrubbing tower（8）Upper end connects coal gas air-introduced machine（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621003698.3U CN205974357U (en) | 2016-08-31 | 2016-08-31 | High temperature multitube gyration coupling retort pyrolysis system that stands vertically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621003698.3U CN205974357U (en) | 2016-08-31 | 2016-08-31 | High temperature multitube gyration coupling retort pyrolysis system that stands vertically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205974357U true CN205974357U (en) | 2017-02-22 |
Family
ID=58038923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621003698.3U Active CN205974357U (en) | 2016-08-31 | 2016-08-31 | High temperature multitube gyration coupling retort pyrolysis system that stands vertically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205974357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205149A (en) * | 2019-05-05 | 2019-09-06 | 内蒙古万众炜业科技环保股份公司 | The cracking sub-prime that a kind of small particle coal prepares moulded coal utilizes production system |
-
2016
- 2016-08-31 CN CN201621003698.3U patent/CN205974357U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205149A (en) * | 2019-05-05 | 2019-09-06 | 内蒙古万众炜业科技环保股份公司 | The cracking sub-prime that a kind of small particle coal prepares moulded coal utilizes production system |
| CN110205149B (en) * | 2019-05-05 | 2024-02-20 | 内蒙古蓝色火宴科技环保股份公司 | Cracking quality-dividing utilization production system for preparing molded coal from small-particle-size coal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102417823B (en) | Drying and dry distillation combined quality improving process and system for low rank coal | |
| CN107200458B (en) | A kind of municipal sludge processing method | |
| CN102517054B (en) | Device and method for continuous pyrolysis of agricultural and forestry biomass and fractional collection and purification of product | |
| CN101975388B (en) | Biomass boiler system capable of saving energy and reducing emission | |
| CN102358841B (en) | Multistage pulverized coal multiple-tube rotary low temperature dry distillation technology and system | |
| CN103980912B (en) | A kind of brown coal method for destructive distillation and device | |
| CN204702642U (en) | A kind of continous way Thermal decomposition device for sludge | |
| CN102643703B (en) | Novel external heating type lignite pyrolysis quality increasing system and process | |
| CN101289621B (en) | Process for preparing carbocoal, coke tar and coal gas by treating bovey coal by suspending pyrogenation device | |
| CN104293365A (en) | Biomass poly-generation equipment and method of integral pyrolysis-flue gas combined cycle | |
| CN104861996A (en) | Biomass pyrolysis gas-oil poly-generation system | |
| CN104524908B (en) | A kind of film dust arrester and utilize the pyrolytic process of coal of this film dust arrester | |
| CN201819190U (en) | Energy saving and emission reduction biomass boiler system | |
| CN108675588A (en) | Sludge high-drying charing process system | |
| CN103409156B (en) | Heat carrier destructive distillation system for coal and method thereof | |
| CN208667448U (en) | Sludge high-drying charing process system | |
| CN204421013U (en) | Domestic garbage pyrolysis reduction treatment system | |
| CN108456540A (en) | A kind of continuous thermal cracking integrated system of biomass multiple-unit | |
| CN203212525U (en) | Gas-solid combined biomass partition speed control pyrolysis system | |
| CN205974357U (en) | High temperature multitube gyration coupling retort pyrolysis system that stands vertically | |
| CN102492445A (en) | Multi-pipe revolving low-temperature dry distillation technology of fine coal | |
| CN107267170A (en) | Biomass carbonization pyrolysis installation | |
| CN103952163A (en) | Electromagnetic carbonizing device and biomass carbonizing system comprising same | |
| CN208250233U (en) | A kind of continuous thermal cracking integrated system of biomass multiple-unit | |
| CN206986000U (en) | A kind of municipal sludge processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |