CN206109307U - Dry distillation device - Google Patents
Dry distillation device Download PDFInfo
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- CN206109307U CN206109307U CN201621046242.5U CN201621046242U CN206109307U CN 206109307 U CN206109307 U CN 206109307U CN 201621046242 U CN201621046242 U CN 201621046242U CN 206109307 U CN206109307 U CN 206109307U
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- distillation device
- destructive distillation
- semicoke
- tripper
- heat
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Abstract
The utility model discloses a dry distillation device. The device includes raw material conveyor, commentaries on classics formula radiation bed and sealed conveyer, last coal entry, hot semicoke entry and the silo outlet of being provided with of raw material conveyor, commentaries on classics formula radiation bed is provided with feed inlet and hot semi -coke outlet, feed inlet and silo outlet intercommunication, be provided with first feed inlet and first discharge gate on the sealed conveyer, first feed inlet and hot semi -coke outlet intercommunication, and first discharge gate and hot semicoke entry intercommunication. This dry distillation device is adopted, the heat exchange efficiency of raw materials coal can be effectively improved to make commentaries on classics formula radiation bed just can accomplish pyrolytic reaction under less heat transfer area. Simultaneously, the raw materials coal can also make oil gas volatilize fast with the contact of hot semicoke to can avoid oil gas at the in -process secondary pyrolysis that heaies up at a slow speed. In addition, quick heat transfer is carried out with the raw materials coal in will hot semicoke returning raw material conveyor to the mode that adopts the extrinsic cycle, and the volume of returning of hot semicoke can obtain controlling more effectively.
Description
Technical field
The utility model is related to coal chemical technology, in particular to a kind of destructive distillation device.
Background technology
Smalls is the necessary byproduct produced in progress of coal mining, while being increased using modern performing comprehensive coal mining equipment
The yield of smalls.China is stronger to the dependence of coal resources at present, at present to low-rank coal development of resources and clean utilization by
Gradually pay attention to, this is to maintain China's sustainable economic development, it is ensured that the Important Action of energy security development.In presently disclosed technology
In, the either technology such as coal liquifaction, natural gas from coal, ammonia from coal, or low, medium and high temperature coke, the technology of gas,
Using raw coal particle substantially in more than 25mm, it is more intractable for the smalls less than 25mm.
Smalls pyrolysis can realize that its clean and effective is utilized, and thermal decomposition product has tar, pyrolysis coal gas and high heating value semicoke.Semicoke
Can be used as carbide raw material, blast furnace blowing fuel and fuel used to generate electricity etc..Calorific value of gas is high, can use directly as domestic gas or or
Person extracts LNG etc..Tar can be hydrogenated with and produce petrol and diesel oil etc. as industrial chemicals.
Be pyrolyzed at this stage has internal heat type and external-heat according to mode of heating, and internal heat type technique has at present vertical furnace technology, consolidates
Body heat carrier distillation process and CFBB and pyrolysis coupling systems technology etc..The semicoke that vertical heater distillation process is produced
Property is unstable, and calorific value of gas is low, and value is low, and the production capacity of single device is little；The coal that hot solid carrier devolatilization technique is produced
Gas calorific value is high, and half breeze is more, and used as fuel requirement efflorescence after-combustion, tar ash content is high, causes subsequent treatment costly；Follow
Circulation fluidized bed boiler and pyrolysis coupling system actually belong to hot solid carrier devolatilization, and it is currently in the pilot scale stage, not large-scale
Industrialized production case.
External-heat technique mainly has at present external-heating revolving distillation process, such as utility model patent 2012200438830, real
With new patent 201110161521.1, technique generation coal tar, semicoke and the high heating value gas.But this technology greatest problem exists
Increase limited in its heat exchange area, the unit disposal ability that can only pass through increase kliner coating area increase heat exchange area, i.e. kiln is limited,
And using kiln body as heat exchanger tube, the diameter of kiln cannot increase, and diameter is bigger, and kiln body intensity is poorer, heat exchange and kiln body diameter are limited
Its unit disposal ability.
Internal heat type and external-heat distillation apparatus are compared according to above-mentioned, the structure of hot solid carrier devolatilization equipment is relatively tight
Rush, thermal medium and coal directly contact, its heat transfer coefficient is big, saves equipment；External-heat distillation apparatus have multitube rotary furnace and outer
Heating type retort furnace, but it passes through external heat source and transfers heat to coal, and because of gas-solid heat exchange characteristic, the coefficient of heat transfer is limited, heat-transfer surface
Product is big, and equipment volume is big.
The semicoke temperature of external-heat distillation apparatus production is returned between 500～650 DEG C by special construction or equipment
Return in distillation apparatus, quickly can improve coal temperature, heat exchange area can be saved, equipment volume reduces.Utility model patent
Semicoke, using outside returns structure is arranged on distillation apparatus, is returned to gas retort leading portion by 201220044178.2, improves overall
Heat transfer coefficient, can quickly improve raw coal temperature, but back amount is uncontrollable.Utility model patent 201510494558.4, adopts
Internal-mixing structure, arranges reverse acting spiral structure in gas retort, and partial material is returned to into feed end, but back amount can not
Control.
For these reasons, it is necessary to which a kind of destructive distillation device for possessing returning charge function is provided, with more effectively accelerate improve
Coal temperature.
Utility model content
The utility model aims to provide a kind of destructive distillation device, to solve prior art in the coal temperature of destructive distillation device improve slow
Slowly, the excessive problem of heat exchange area.
To achieve these goals, according to one side of the present utility model, there is provided a kind of destructive distillation device, it includes：
Ingredient conveyor, is provided with coal entrance, hot semicoke entrance and material outlet on ingredient conveyor；Rotatable radiation bed, rotatable radiation
Feed(raw material)inlet and the outlet of hot semicoke are provided with bed, feed(raw material)inlet connects with material outlet；And hermetic conveyer, sealing conveying
First charging aperture and the first discharging opening, first charging aperture and hot semicoke outlet, and the first discharging opening and heat are provided with machine
Semicoke entrance is connected.
Further, hermetic conveyer is air-tight buried scraper machine.
Further, destructive distillation device also includes bucket elevator, and the first discharging opening passes through bucket lifting with hot semicoke entrance
Machine is connected.
Further, destructive distillation device also includes tripper, and tripper charging aperture and the first discharging are provided with tripper
Pipe, tripper charging aperture and hot semicoke outlet, the first discharging arm is connected with the first charging aperture of hermetic conveyer.
Further, the second discharging arm is additionally provided with tripper；Destructive distillation device also includes that semicoke conveys cooling device,
Semicoke conveys cooling device and connects with the second discharging arm.
Further, ingredient conveyor is conveying worm, and the screw pitch of conveying worm is along near material outlet
Direction gradually increase.
Further, rotatable radiation bed includes：Rotary barrel, is provided with feed(raw material)inlet, the outlet of hot semicoke on rotary barrel
And raw coke oven gas outlet；And radiation tube bank, radiation tube bank be located at rotary barrel in, radiation tube bank on be provided with heat smoke entrance and
Heat smoke is exported.
Further, destructive distillation device also includes：Flue gas cover, flue gas cover is connected with heat smoke entrance；First air leaving cover, first
Air leaving cover and heat smoke outlet；Second air leaving cover, the second air leaving cover and raw coke oven gas outlet.
Further, destructive distillation device also includes：First heat-insulation layer, is arranged on the inwall of flue gas cover；Second heat-insulation layer, if
Put on the inwall of the first air leaving cover；And the 3rd heat-insulation layer, it is arranged on the inwall of the second air leaving cover.
Further, tripper is electric drive tripper or hydraulic-driven tripper.
Using destructive distillation device provided by the utility model, the heat exchange efficiency of feed coal can be effectively improved, so that rotatable
Radiation bed just can complete pyrolytic reaction under less heat exchange area.Meanwhile, feed coal can also with the contact of hot semicoke
Oil gas is enough set quickly to volatilize such that it is able to avoid oil gas second pyrolysis in temperature-rise period at a slow speed.Additionally, using the side of outer circulation
Hot semicoke is returned and quickly exchanged heat with feed coal in ingredient conveyor by formula, and the back amount of hot semicoke can be obtained more effectively
Control such that it is able to the heating rate of feed coal is more effectively controlled, more effectively to control its pyrolytic reaction.
Description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding to of the present utility model, this practicality
New schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In the accompanying drawings：
Fig. 1 shows the destructive distillation device in a kind of embodiment of the utility model.
Wherein, reference is as follows：
10th, ingredient conveyor；101st, coal entrance；102nd, hot semicoke entrance；20th, rotatable radiation bed；201st, feed(raw material)inlet；
202nd, hot semicoke outlet；203rd, heat smoke entrance；204th, heat smoke outlet；205th, raw coke oven gas outlet；30th, hermetic conveyer；40、
Bucket elevator；50th, tripper；60th, semicoke conveying cooling device.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the utility model in detail.
As background section is introduced, there is coal temperature and improve slow, heat-transfer surface in destructive distillation device of the prior art
The excessive problem of product.In order to solve this problem, the utility model provides a kind of destructive distillation device, as shown in figure 1, the device bag
Include ingredient conveyor 10, rotatable radiation bed 20 and hermetic conveyer 30；Coal entrance 101, heat are provided with ingredient conveyor 10
Semicoke entrance 102 and material outlet；Feed(raw material)inlet 201 and hot semicoke outlet 202, feed(raw material)inlet are provided with rotatable radiation bed 20
201 connect with material outlet；First charging aperture and the first discharging opening, first charging aperture and heat half are provided with hermetic conveyer 30
Jiao's outlet 202 is connected, and the first discharging opening is connected with hot semicoke entrance 102.
The utility model provide above-mentioned destructive distillation device in, by the hot semicoke entrance 102 on ingredient conveyor 10 with it is rotatable
Hot semicoke outlet in radiation bed 20 202 is connected, so can by hot semicoke in the presence of hermetic conveyer 30 from rotatable
The outside of radiation bed 20 is returned in ingredient conveyor 10, and then rotatable radiation bed 20 is delivered to together with feed coal carries out heat
Solution.In the process, the hot semicoke of high temperature can make feed coal be rapidly heated, so as to effectively improve the heat exchange efficiency of feed coal,
So that rotatable radiation bed 20 just can complete pyrolytic reaction under less heat exchange area.Meanwhile, feed coal and hot semicoke
Contact oil gas can also be made quickly to volatilize such that it is able to avoid oil gas second pyrolysis in temperature-rise period at a slow speed.Additionally, using
Hot semicoke is returned and quickly exchanged heat with feed coal in ingredient conveyor 10 by the mode of outer circulation, and the back amount of hot semicoke can be with
More effectively controlled such that it is able to more effectively control the heating rate of feed coal, it is anti-more effectively to control its pyrolysis
Should.
In a kind of preferred embodiment, hermetic conveyer 30 is air-tight buried scraper machine.Air-tight buried scraper machine can
More than 750 DEG C of high temperature resistant, wearability is good, good seal performance, and being capable of frequency conversion conveying material.Specifically, air-tight buried scraper machine
Sealed using nitrogen and pressurize, security is higher, and back amount is more controllable.In actual mechanical process, air-tight buried scraper
Machine using frequency control motor adjust feeding coal, meet chain speed change requirement, and it is interior have pressure-fired ,≤100Pa.
In a kind of preferred embodiment, destructive distillation device also includes bucket elevator 40, and the first discharging opening enters with hot semicoke
Mouth 102 is connected by bucket elevator 40.The high temperature resistant of bucket elevator 40 (550～750 DEG C) is wear-resisting, reliable and stable, by high temperature
Semicoke is promoted to certain altitude.Hot semicoke further can be in sealed states delivered to by raw material by bucket elevator 40 defeated
Send at machine 10.Similarly, bucket elevator 40 is also adopted by nitrogen and is sealed and pressurize, inside there is pressure-fired ,≤50Pa.
In a kind of preferred embodiment, destructive distillation device also includes tripper 50, is provided with tripper on tripper 50 and enters
Material mouth and the first discharging arm, tripper charging aperture and hot semicoke outlet 202 connect, the first discharging arm and hermetic conveyer 30
First charging aperture connection.The back amount of hot semicoke can more effectively be controlled using tripper 50.
In a kind of preferred embodiment, the second discharging arm is additionally provided with tripper 50；Destructive distillation device also includes half
Jiao's conveying cooling device 60, semicoke conveys cooling device 60 and connects with the second discharging arm.So, except the hot semicoke for returning
Outward, the hot semicoke of another part just can convey cooling device 60 and carry out cooling conveying by semicoke.Semicoke conveys cooling device 60
Heat resistant and wear resistant, possesses refrigerating function, and conveying function more preferably possesses function of weighing, and to return semicoke further tune is provided
Whole parameter.
Specifically, semicoke conveying cooling device 60 includes air-tight buried scraper machine and waste heat boiler, or is band water-cooled folder
The scrapper conveyor (putting water spray facility in inside) of set, or be the spiral shell with axle center cooling, delivery pipe water collar or internal spraying function
Rotation conveyer.
In order that semicoke back amount is realized more accurately controlling, preferred tripper 50 is electric drive tripper or hydraulic-driven point
Glassware.Electric drive tripper or hydraulic-driven tripper can adjust two punishment doses with more becoming more meticulous.Additionally, tripper 50
Can 750 DEG C of high temperature resistant, good seal performance.
In a kind of preferred embodiment, ingredient conveyor 10 is conveying worm, and the screw pitch of conveying worm
Gradually increase along the direction near material outlet.So, the inducer coal filling rate of conveying worm is high, discharge end coal filling rate
It is low, the inner barrel steam of rotatable radiation bed 20 or coal gas can be just sealed, with certain sealing function.It is highly preferred that spiral
Conveyer is double-screw conveyor, and double-screw conveyor has conveying and the dual-use function for stirring, can be to feed coal and heat half
Jiao plays stirring action, improves so as to further speed up coal temperature.It is further preferred that the axle of conveying worm is hollow shaft, and
Become joint with rotation to be connected.So axle can also be used as outlet pipe.It is highly preferred that the material of conveying worm：Rotating shaft material
304 are selected, helical blade material selects 304, and spiral outer tube selects 304.Heat-insulation layer is provided with the outer tube of conveying worm.
In a kind of preferred embodiment, rotatable radiation bed 20 includes rotary barrel and radiation tube bank, sets on rotary barrel
It is equipped with feed(raw material)inlet 201, hot semicoke outlet 202 and raw coke oven gas outlet 205；Radiation tube bank is located in rotary barrel, radiation tube bank
On be provided with heat smoke entrance 203 and heat smoke outlet 204.
In actual mechanical process, feed coal enters feed bin, under gravity or under unloader effect, enters into raw material
Conveyer 10 and hot semicoke mix, and are entered in the rotary barrel of rotatable radiation bed 20 by ingredient conveyor 10, and in rotation
Move forward in the rotation process of cylinder, exchanged heat with the heat smoke from heat smoke entrance 203 in moving process, coal heat absorption
After there are a series of pyrolytic reactions, generate semicoke and raw coke oven gas.High temperature raw coke oven gas goes to dust pelletizing system from raw coke oven gas outlet 205,
High warm semicoke is fallen in tripper 50 under hot semicoke outlet 202, and then part semicoke is from outside return, while remaining semicoke
It is transported to semicoke conveying cooling device 60.Heat smoke from radiation tube bank afterbody out after, from hot cigarette under flue gas pulling function
Smoke processing system or drying system are gone in gas outlet 204.
Preferably, rotatable radiation bed 20 adopts horizontal inclined arrangement, and by the coal direction of motion from low to high, gradient is 1～4%
Between, the cylindrical structure of rotary barrel, its rotary rpm about 0.5～5r/min.
In a kind of preferred embodiment, destructive distillation device also includes flue gas cover, the first air leaving cover and the second air leaving cover, flue gas
Cover is connected with heat smoke entrance 203；First air leaving cover is connected with heat smoke outlet 204；Second air leaving cover and raw coke oven gas outlet 205
Connection.Flue gas cover is hot blast distributor chamber, is connected with least one of tube bank radiant tube is radiated, and its temperature is 800～1000 DEG C.
Flue gas cover is arranged in the underface (with horizontal plane) of rotatable radiation bed 20 or side (with plane-parallel), and and hot-blast stove
Connection.First air leaving cover and the second air leaving cover are respectively as flue gas and the collector of raw coke oven gas.
In a kind of preferred embodiment, destructive distillation device also includes the first heat-insulation layer, is arranged on the inwall of flue gas cover；The
Two heat-insulation layers, are arranged on the inwall of the first air leaving cover；And the 3rd heat-insulation layer, it is arranged on the inwall of the second air leaving cover.Protect
Warm layer includes heat-preservation cotton and is arranged on the antifriction metal (AFM) inner bag of heat-preservation cotton internal layer.
In specific operating process, the destructive distillation device in the utility model has two states：When the intensification of feed coal
When speed is enough, outside can not circulate semicoke.And when the intensification of feed coal is excessively slow, it is possible to use outer loop semicoke is carried out
Improve.Specifically, those skilled in the art can be operated by the above-mentioned teaching of the utility model, be will not be described here.
Seen from the above description, using destructive distillation device provided by the utility model, changing for feed coal can be effectively improved
The thermal efficiency, so that rotatable radiation bed just can complete pyrolytic reaction under less heat exchange area.Meanwhile, feed coal with heat
The contact of semicoke can also make oil gas quickly volatilize such that it is able to avoid oil gas second pyrolysis in temperature-rise period at a slow speed.Additionally,
Hot semicoke is returned by the way of outer circulation is quickly exchanged heat with feed coal in ingredient conveyor, the back amount of hot semicoke can
More effectively to be controlled such that it is able to more effectively control the heating rate of feed coal, more effectively to control its pyrolysis
Reaction.
In addition, above-mentioned destructive distillation device simple system, equipment is stable, independently operable；Using electrical means, can reach
Exact automatic is operated；Tar yield can be improved, tar quality is improved.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of destructive distillation device, it is characterised in that include：
Ingredient conveyor (10), is provided with coal entrance (101), hot semicoke entrance (102) and original on the ingredient conveyor (10)
Material outlet；
Rotatable radiation bed (20), is provided with feed(raw material)inlet (201) and hot semicoke outlet (202) on the rotatable radiation bed (20),
The feed(raw material)inlet (201) connects with the material outlet；And
Hermetic conveyer (30), is provided with first charging aperture and the first discharging opening on the hermetic conveyer (30), and described first
Charging aperture is connected with hot semicoke outlet (202), and first discharging opening is connected with the hot semicoke entrance (102).
2. destructive distillation device according to claim 1, it is characterised in that the hermetic conveyer (30) is air-tight buried scraper
Machine.
3. destructive distillation device according to claim 1 and 2, it is characterised in that the destructive distillation device also includes bucket elevator
(40), first discharging opening is connected with the hot semicoke entrance (102) by the bucket elevator (40).
4. destructive distillation device according to claim 3, it is characterised in that the destructive distillation device also includes tripper (50), institute
State and tripper charging aperture and the first discharging arm are provided with tripper (50), the tripper charging aperture goes out with the hot semicoke
Mouth (202) connection, the first discharging arm is connected with the first charging aperture of the hermetic conveyer (30).
5. destructive distillation device according to claim 4, it is characterised in that be additionally provided with the second discharging on the tripper (50)
Arm；The destructive distillation device also includes semicoke conveying cooling device (60), semicoke conveying cooling device (60) and described the
Two discharging arm connections.
6. destructive distillation device according to claim 1, it is characterised in that the ingredient conveyor (10) is conveying worm,
And the screw pitch of the conveying worm gradually increases along the direction near the material outlet.
7. destructive distillation device according to claim 1, it is characterised in that the rotatable radiation bed (20) includes：
Rotary barrel, is provided with the feed(raw material)inlet (201), hot semicoke outlet (202) and waste coal on the rotary barrel
Gas exports (205)；And
Radiation tube bank, the radiation tube bank is located in the rotary barrel, and in the radiation tube bank heat smoke entrance is provided with
(203) and heat smoke outlet (204).
8. destructive distillation device according to claim 7, it is characterised in that the destructive distillation device also includes：
Flue gas cover, the flue gas cover is connected with the heat smoke entrance (203)；
First air leaving cover, first air leaving cover exports (204) with the heat smoke and connects；
Second air leaving cover, second air leaving cover exports (205) with the raw coke oven gas and connects.
9. destructive distillation device according to claim 8, it is characterised in that the destructive distillation device also includes：
First heat-insulation layer, is arranged on the inwall of the flue gas cover；
Second heat-insulation layer, is arranged on the inwall of first air leaving cover；And
3rd heat-insulation layer, is arranged on the inwall of second air leaving cover.
10. destructive distillation device according to claim 4, it is characterised in that the tripper (50) for electric drive tripper or
Hydraulic-driven tripper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621046242.5U CN206109307U (en) | 2016-09-09 | 2016-09-09 | Dry distillation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621046242.5U CN206109307U (en) | 2016-09-09 | 2016-09-09 | Dry distillation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206109307U true CN206109307U (en) | 2017-04-19 |
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ID=58520559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621046242.5U Active CN206109307U (en) | 2016-09-09 | 2016-09-09 | Dry distillation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206109307U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350085A (en) * | 2016-09-09 | 2017-01-25 | 新疆广汇中化能源技术开发有限公司 | Dry distillation apparatus |
-
2016
- 2016-09-09 CN CN201621046242.5U patent/CN206109307U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350085A (en) * | 2016-09-09 | 2017-01-25 | 新疆广汇中化能源技术开发有限公司 | Dry distillation apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180122 Address after: 839303 the Xinjiang Uygur Autonomous Region Hami Yiwu County NOM town Xingye Road No. 1 Patentee after: Xinjiang Guanghui coal cleaning and refining Co., Ltd. Address before: 830001 the Xinjiang Uygur Autonomous Region economic and Technological Development Zone, Songshan street, No., R & D building, room 871, room 229 Patentee before: XINJIANG GUANGHUI SINOCHEM ENERGY TECHNOLOGY DEVELOPMENT CO., LTD. |
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| TR01 | Transfer of patent right |