CN105482841B - A kind of screw propulsion material external-heat dry distillation of coal device - Google Patents
A kind of screw propulsion material external-heat dry distillation of coal device Download PDFInfo
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- CN105482841B CN105482841B CN201610021664.5A CN201610021664A CN105482841B CN 105482841 B CN105482841 B CN 105482841B CN 201610021664 A CN201610021664 A CN 201610021664A CN 105482841 B CN105482841 B CN 105482841B
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- destructive distillation
- distillation room
- heating chamber
- room
- rotary shaft
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/18—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with moving charge
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/02—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by distillation
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
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- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Gasification And Melting Of Waste (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The present invention proposes a kind of screw propulsion material external-heat dry distillation of coal device, including heating chamber, destructive distillation room, helix transporting device, cracking gas collection device, bearing support block, feeding-discharging mechanism and drive device, cracking gas collection device is connected with destructive distillation room, the heated portion of destructive distillation room is in heating chamber, and destructive distillation room is isolated with heating chamber, feeding-discharging mechanism is connected to destructive distillation room, helix transporting device is arranged in destructive distillation room and end passes through bearings seat supports, drive device is connected to the end of helix transporting device, discharge flue is provided with helix transporting device, heating chamber connects with discharge flue.The present invention by using screw propulsion material mechanism carry out raw coal propulsion, in same closing heating chamber multiple destructive distillation rooms in parallel, combustion product gases are introduced into raw material propulsion plant and realize heat energy recycling, the raw coal solved in the dry distillation of coal promotes problem, the destructive distillation efficiency of heating surface is improved, has the advantages that retort process coal is heated evenly, the efficiency of heating surface is high, tar yield is high.
Description
Technical field
The present invention relates to dry distillation of coal technology, and in particular to a kind of screw propulsion material external-heat dry distillation of coal device, belongs to fine coal
Middle low temperature distillation technical field.
Background technology
The pyrolysis of fine coal retorting technique, also referred to as coal carbonization or coal, refer to that coal is added under conditions of air is completely cut off
Heat, the burnt oil and gas inside coal is evaporated, obtains tar, coal gas, the process of semi-coke.The technology results from 19 generation earliest
Record, originating from Germany, be mainly used in producing coal tar at the beginning of invention, be also used for producing hard coke charcoal and fuel gas, due to this
The energy conversion rate of technology is very high, is considered the third coal conversion skill arranged side by side with coal gasification, coal liquefaction both at home and abroad always
Art, and the developing direction of clean coal utilization, meet national energy policy.
Large-scale coalfield is continuously found that on the Inner Mongol in China, Xinjiang and other places.These coalfields are mainly with high volatile
Low-order coal based on, account for coal resources in China reserves more than 50%.The volatile component of lignite and jet coal therein accounts for original
Volatile component accounts for the 20%~37% of raw coal dry weight in more than the 37% of coal dry weight, dross coal and weakly caking coal.These coals are at me
Reserves in state's coal resources are larger, have the characteristics that moisture is big, caloric value is low, chemical reactivity is good, inflammable frangible, are unfavorable for
Directly burn and transport, and the thermal efficiency directly to burn is relatively low, and greenhouse gas emissions are big, and carbonization is low to these
Quality coal carries out the good method of upgrading.
The exploitation of domestic pyrolysis of coal new technology was also very active in recent years, and also the scale to pyrolysis of coal, Poly-generation provide
Technical condition.For example Zhejiang University just proposed the imagination of thermoelectricity gas multi-production process early in 1987, and state is applied for
Family's patent of invention (patent No. 92100505.2, circulating fluidized bed heat-power-gas-tar multi-joint-production apparatus exploitation》, Dalian University of Technology
In recent years hot solid carrier devolatilization new technology is being developed always, has completed the laboratory experiments of a variety of oil shales, lignite.But with regard to mesh
Preceding present situation in general, also in the starting stage, mostly using upright square lump coal pyrolysis oven, do by domestic coal carbonization industrialization
During evaporating there is it is more serious the problem of, such as raw coke oven gas calorific value caused by destructive distillation is low, normal pressure or pressure-fired are to exist
Common problem.What the current domestic dry distillation of coal had industrial advantages is the dry distillation of coal technology based on external-heat, that is, by coal
Retort process and heating process separate, and the subject matter for influenceing external-heat dry distillation of coal efficiency be wherein the propulsion mode of coal and plus
The thermal efficiency, in the current external-heat dry distillation of coal equipment raw coal propulsion mode using it is more be that the gravity based on upright furnace is promoted, carried out
Band conveying promotes, shaft rolls propulsion etc., and these raw coal propulsion modes have larger industrialization defect in actual use,
Gravity such as based on upright furnace promotes and shaft rolls Push Technology, and being limited to the equipment volume of gas retort can not be made
Greatly, the pyrolysis yield of coal is directly limit, and crawler belt conveying promotes the increase of the complexity, sealing difficulty that can then cause device structure
And the raising of equipment failure rate, therefore the raw coal propulsion mode in existing pyrolysis of coal technology in the prevalence of it is larger the defects of.
It is always the key factor that its needs considers that the efficiency of heating surface is improved in external-heat dry distillation of coal technology, is not had generally in the prior art
The efficiency of heating surface in pyrolysis and coal propulsion mode are combined consideration.Therefore a kind of external-heat dry distillation of coal device is innovated for promoting
The pyrolysis industrialization of coal is significant.
The content of the invention
The present invention is based on above-mentioned prior art problem, and innovation proposes a kind of screw propulsion material external-heat dry distillation of coal device, first
The propulsion realized in dry distillation of coal device by the way of screw propulsion material to raw coal of secondary innovation, innovate first in same envelope
Multiple destructive distillation rooms are arranged in parallel in the heating chamber closed, and heat energy is realized in combustion product gases being introduced into raw material propulsion plant for innovating first
Recycle, not only solve raw coal in existing dry distillation of coal technology well and promote problem, and with new way significantly
The destructive distillation efficiency of heating surface is improved, with retort process coal is heated evenly, retorting time is short, the efficiency of heating surface is high, tar yield is high, waste
The particular advantages such as calorific value of gas is high, dustiness is low, economic well-being of workers and staff is good, while whole dry distillation of coal device is easily realized, is simple to operate,
The making for requiring to carry out more sizes can be amplified according to industrialization, market promotion prospect is wide.
It is as follows that the present invention solves the technical scheme that above-mentioned technical problem is taken：
A kind of screw propulsion material external-heat dry distillation of coal device, including：Heating chamber 3, destructive distillation room, helix transporting device 9, cracking
Gas collection device and drive device, the cracking gas collection device are connected with the destructive distillation room, the heated parts of the destructive distillation room
Office is in the heating chamber 3, and the destructive distillation space of the destructive distillation room and the heating space of the heating chamber 3 are isolated, described
It is arranged on destructive distillation room formed with charging aperture and discharging opening, the helix transporting device 9 in the destructive distillation room, the drive device
Drive the helix transporting device 9 to be rotated in the destructive distillation room, discharge flue 15 be provided with the helix transporting device 9,
The heating chamber 3 connects with the discharge flue 15.
Further according to screw propulsion material external-heat dry distillation of coal device of the present invention, wherein the cracking gas is collected
Device includes cracking gas collecting chamber 10 and cracking gas collecting pipe 2, and the cracking gas collecting chamber 10 is formed at the outer of the destructive distillation room
On wall, and connected with the destructive distillation room, the cracking gas collecting chamber 10 and the destructive distillation room are in the heating chamber 3, institute
The heating space that heating chamber 3 is formed as sealing is stated, one end of the cracking gas collecting pipe 2 is communicated in the cracking gas collecting chamber
10, the other end of the cracking gas collecting pipe 2 is stretched out in outside the heating chamber 3.
Further according to screw propulsion material external-heat dry distillation of coal device of the present invention, wherein also including fuel confession
Room 16 and fuel supply pipe 17 are answered, the fuel supply room 16 is connected to the heating chamber by the fuel supply pipe 17
3, and the heating chamber is provided with igniter 12 in the position of connection fuel supply pipe 17, the heating chamber passes through fuel combustion
Destructive distillation room is heated from the outside of destructive distillation room, the combustion product gases in the heating chamber pass through the row in helix transporting device 9
Cigarette channel 15 is discharged, and combustion product gases heat in discharge process from the inside of destructive distillation room to destructive distillation room.
Further according to screw propulsion material external-heat dry distillation of coal device of the present invention, wherein also including feeding warehouse
1 and discharging bin 6, the charging aperture 20 is opened up at the top of the destructive distillation room, and one end of the feeding warehouse 1 is connected to the charging aperture
20, the other end of the feeding warehouse 1 is stretched out in outside the heating chamber 3 and is tightly connected with the adiabatic wall of heating chamber, described dry
The bottom for evaporating room opens up the discharging opening 22, and one end of the discharging bin 6 is connected to the discharging opening 22, the discharging bin 6
The other end is stretched out in outside the heating chamber 3 and is tightly connected with the adiabatic wall of heating chamber.
Further according to screw propulsion material external-heat dry distillation of coal device of the present invention, wherein the destructive distillation room includes
Upper destructive distillation room 4 and lower destructive distillation room 5, the upper destructive distillation room 4 and lower destructive distillation room 5 are arranged side by side in the heating chamber, described dry
Evaporate and be interconnected between room 4 and lower destructive distillation room 5 by material connecting leg 13, is respectively provided with upper destructive distillation room 4 and lower destructive distillation room 5
Helix transporting device 9 is stated, the cracking gas collecting chamber 10 is provided with outside upper destructive distillation room 4 and lower destructive distillation room 5.
Further according to screw propulsion material external-heat dry distillation of coal device of the present invention, wherein the upper destructive distillation room 4
It is arranged side by side with what lower destructive distillation room 5 was parallel to each other in the heating chamber, and upper destructive distillation room 4 is more leaned on relative to lower destructive distillation room 5
The top surface of nearly heating chamber, the upper destructive distillation room 4 and lower destructive distillation room 5 are respectively provided with cylinder-like structure, the circle of the upper front end of destructive distillation room 4
Cylinder top side wall offers charging aperture upwards, and the cylinder side wall bottom of the lower front end of destructive distillation room 4 offers downwards discharging opening, institute
State and connected entrance is offered on the cylinder side wall of destructive distillation room 4 and the lower rear end of destructive distillation room 5, the front and back end portses point of the material connecting leg 13
Be not connected to the connected entrance of destructive distillation room 4 and lower destructive distillation room 5, and the bottom surface of material connecting leg 13 simultaneously with upper destructive distillation room 4 and lower dry
Evaporate that the cylinder bottom surface of room 5 is tangent, the coal charge screw propulsion side of the upper destructive distillation room 4 and the helix transporting device 9 in lower destructive distillation room 5
To opposite.
Further according to screw propulsion material external-heat dry distillation of coal device of the present invention, wherein also including bearing branch
Seat is supportted, the helix transporting device 9 includes rotary shaft 18 and helical blade 19, and the helical blade 19 is set in destructive distillation chamber interior
Helical duct is axially formed in destructive distillation room in the rotary shaft 18, and along rotary shaft 18, the both ends of the rotary shaft 18 are stretched
Outside the destructive distillation room, and the both ends of the rotary shaft 18 are supported in outside destructive distillation room on the bearing support block, described
Rotational sealing structure is formed between the both ends port of destructive distillation room and the rotary shaft, and the rotary shaft 18 is linear along central shaft
Into front and rear penetrating discharge flue 15, the drive device is connected in one end of the rotary shaft.
Further according to screw propulsion material external-heat dry distillation of coal device of the present invention, wherein before the destructive distillation room
Both ends are individually fixed in the rear and front end face of the heating chamber afterwards, and the destructive distillation room and the junction of heating chamber form sealing knot
Structure, the both ends of the rotary shaft 18 are stretched out in outside the heating chamber, and the bearing support block includes fore bearing support base 7 with after
Bearing support block 8, the front end of the rotary shaft 18 heating chamber front rolling support on the fore bearing support base 7, institute
The rear rolling support of the rear end of rotary shaft 18 in heating chamber is stated after described on bearing support block 8, the drive device 11 passes
The dynamic rear end for being connected to the rotary shaft 18, the heating chamber 3 are communicated in the discharge flue 15 by flue gas guide wire 26.
Further according to screw propulsion material external-heat dry distillation of coal device of the present invention, wherein also including hubcap
28, the hubcap 28 is sealedly attached to the fore bearing support base 7, and the drive end bearing bracket of the rotary shaft 18 is set in it, institute
State the gas approach 27 for the discharge flue that connection rotary shaft is offered on hubcap 28, one end connection of the flue gas guide wire 26
In the heating chamber, the other end of the flue gas guide wire 26 is connected to the gas approach 27.
Further according to screw propulsion material external-heat dry distillation of coal device of the present invention, wherein behind the destructive distillation room
The rear end face of the heating chamber is fixed at end, and the destructive distillation room and the junction of heating chamber form sealing structure, the rotation
The back-end ports of the rear end of axle 18 from the destructive distillation room are stretched out in outside the heating chamber, and the bearing support block includes fore bearing
Support base 7 and rear bearing support block 8, the rear end of the rotary shaft 18 heating chamber rear rolling support after described bearing branch
Support on seat 8, the fore bearing support base 7 is arranged within the heating chamber 3, and the front end of the rotary shaft 18 is rolled in heating chamber
Dynamic to be supported on the fore bearing support base 7, the drive device 11 is connected in the rear end of the rotary shaft 18, described to add
Hot cell 3 directly connects the discharge flue 15 of the rotary shaft.
Technical scheme has following technology original creation and technique effect：
1）, the present invention first in dry distillation of coal device introduce helix transporting device promote raw coal material, innovated raw coal and pushed away
Enter means, solve the problems, such as conventional upright stove limitation pyrolysis yield, avoid the device structure that conventional track conveyer belt comes and answer
Miscellaneous, the problem of sealing difficulty is big, fault rate is high, raw coal material being slowly advanced in destructive distillation and thermally equivalent is effectively ensured,
And dust from flying will not be produced, can wide popularization and application in fine coal destructive distillation industrialization, wide market.
2）, the present invention initiates more than two destructive distillation rooms is arranged in parallel in the heating chamber of sealing, and innovate destructive distillation room
Spiral pusher mode under material mode of communicating and parallel connection, substantially increases dry distillation efficiency.
3), the present invention is pioneering introduces combustion product gases in the rotary shaft of helix transporting device, passes through the side of inside and outside heat transfer
Formula heats to the coal sample in destructive distillation room, not only substantially increases the efficiency of heating surface, and realizes recycling for heat energy, drop
The low heat of discharged gas fume.
4）, the present invention cracking gas collection device is set on destructive distillation chamber outer wall in heating chamber, cracking gas collecting chamber is set
Be placed in the top of destructive distillation room and lower destructive distillation room, can many places opening, oil gas caused by destructive distillation can discharge uniformly in time, lead to
Crossing reduces the discharge speed of carbonizing gas, improves carbonizing gas（Raw coke oven gas）The settling efficiency of middle dust, it is entirely avoided pass
The problem of air accumulation amount is big when system afterbody individually discharges gas, and then improve dry distillation efficiency.Reduce and put in destructive distillation room simultaneously
When in heating chamber and heating chamber isolation requirement because oil gas caused by destructive distillation is collected in time from destructive distillation room side wall, in coal charge
With spiral path fill up on the premise of destructive distillation chamber interior to a certain extent limit value oil gas from destructive distillation room end（Afterbody）Leak
Possibility, so as to by set between destructive distillation room port and rotary shaft sealing brush can meet destructive distillation room and heating chamber every
Require absolutely, ensure that safe for operation, and then improve dry distillation efficiency.
5）, coal charge is based on indirectly heat destructive distillation, raw coke oven gas caused by destructive distillation in upper destructive distillation room and lower destructive distillation room in the present invention
Calorific value is high, and methane content is high, and the heat in heating chamber may be from destructive distillation used heat, improve heat utilization efficiency.The present invention can simultaneously
The fore bearing support base of helix transporting device is arranged in heating chamber as needed, can so improve heating to greatest extent
Room closure, and by the use of the hollow channel of rotary shaft in built-in helix transporting device as discharge flue in heating chamber,
System architecture is simplified while improving the efficiency of heating surface, improves system operation security.
6）, screw propulsion material external-heat dry distillation of coal device of the present invention passes through to connect on feeding warehouse and discharging bin and expects more
Cylinder series connection feed bin, raw coke oven gas is avoided under negative pressure or positive pressure operation in destructive distillation room from feed inlet and outlet leakage and oxygen from input and output material
The danger that mouth enters in destructive distillation room, avoid the possibility of pyrolytic process blast.
7）, screw propulsion material external-heat dry distillation of coal device of the present invention operating condition it is flexible, wherein upper destructive distillation room and
The pressure of lower destructive distillation room can carry out flexible modulation, raw coke oven gas flow velocity in destructive distillation room can be reduced by improving pressure, so as to have
Beneficial to the sedimentation of dust in raw coke oven gas；And destructive distillation room may operate in negative pressure or malleation destructive distillation condition；Can under positive pressure operation
The compression power consumption of raw coke oven gas following process is reduced, retorting time can be shortened under negative-pressure operation, improve the output capacity of tar, so as to
Device of the present invention has stronger industrialization amplification application prospect.
8）, the present invention resistant to elevated temperatures sealing brush or stuffing seal are used between destructive distillation room and helix transporting device,
Not stop sealing replacing can be realized, it is ensured that the macrocyclic stable operation of whole device.
Brief description of the drawings
Accompanying drawing 1 is cuing open for the screw propulsion material external-heat dry distillation of coal device of the present invention as the first preferred embodiment
Face front view；
Accompanying drawing 2 is cuing open for the screw propulsion material external-heat dry distillation of coal device of the present invention as the first preferred embodiment
Face top view；
Accompanying drawing 3 is cuing open for the screw propulsion material external-heat dry distillation of coal device of the present invention as the first preferred embodiment
Surface side view；
Accompanying drawing 4 is as in the screw propulsion material external-heat dry distillation of coal device of the present invention of the first preferred embodiment
The cross-section front view of destructive distillation room；
Accompanying drawing 5 is as under in the screw propulsion material external-heat dry distillation of coal device of the present invention of the first preferred embodiment
The cross-section front view of destructive distillation room；
Accompanying drawing 6 is to add as in the screw propulsion material external-heat dry distillation of coal device of the present invention of the first preferred embodiment
The first of discharge flue preferred mode of communicating in hot cell and rotary shaft；
Accompanying drawing 7 is to add as in the screw propulsion material external-heat dry distillation of coal device of the present invention of the first preferred embodiment
The second of discharge flue preferred mode of communicating in hot cell and rotary shaft；
Accompanying drawing 8 is as entering in the screw propulsion material external-heat dry distillation of coal device of the present invention of the first preferred embodiment
The structural representation of more barrel series connection feeding magazines is set on feed bin；
Accompanying drawing 9 is as going out in the screw propulsion material external-heat dry distillation of coal device of the present invention of the first preferred embodiment
The structural representation of more barrel series connection blanking magazines is set on feed bin；
Accompanying drawing 10 is the screw propulsion material external-heat dry distillation of coal device of the present invention as the second preferred embodiment
Cross-section front view；
Accompanying drawing 11 is the screw propulsion material external-heat dry distillation of coal device of the present invention as the second preferred embodiment
Cross sectional plan view；
Accompanying drawing 12 is as in the screw propulsion material external-heat dry distillation of coal device of the present invention of the second preferred embodiment
The cross-section front view of upper destructive distillation room；
Accompanying drawing 13 is as in the screw propulsion material external-heat dry distillation of coal device of the present invention of the second preferred embodiment
The cross-section front view of lower destructive distillation room.
The implication of each reference is as follows in figure：
1- feeding warehouses, 2- cracking gas collecting pipes, 3- heating chambers, the upper destructive distillation rooms of 4-, destructive distillation room under 5-, 6- discharging bins, before 7-
Bearing support block, bearing support block after 8-, 9- helix transporting devices, 10- cracking gas collecting chambers, 11- drive devices, 12- igniting
Device, 13- material connecting legs, 14- adiabatic walls, 15- discharge flues, 16- fuel supply rooms, 17- fuel supply pipe, 18- rotary shafts,
19- helical blades, 20- charging apertures, 21- gas outlets, 22- discharging openings, 23- destructive distillation chamber outer walls, the more barrel series connection feeding bins of 24-
Bucket, the more barrel series connection blanking magazines of 25-, 26- flue gas guide wires, 27- gas approach, 28- hubcaps.
Embodiment
Technical scheme is described in detail below in conjunction with accompanying drawing, so that those skilled in the art can be more
Add and be clearly understood from the present invention, but therefore do not limit the scope of the invention.
Screw propulsion material external-heat dry distillation of coal device provided by the present invention is entered using screw propulsion material and external heating mode
Row coal carbonization, whole device include heating chamber, destructive distillation room, helix transporting device, cracking gas collecting chamber, bearing support block, entered
Feed bin, cracking gas collecting pipe, discharging bin, drive device, igniter and fuel supply device.Described destructive distillation room is carried out as coal
The reaction compartment of destructive distillation, coal are thermally decomposed to generate the materials such as semicoke, coalite tar, coal gas in destructive distillation room, on destructive distillation room
Connect feeding warehouse and discharging bin, providing raw coal into destructive distillation room by feeding warehouse inputs, by discharging bin by coal in destructive distillation room
The solid products such as the semicoke after destructive distillation are exported, and described helix transporting device is arranged in destructive distillation room, passes through helix transporting device
Spiral promotion of the feed coal in retort process is realized in destructive distillation room, and makes coal thermally equivalent during screw propulsion；
The cracking gas collecting chamber is close to the setting of destructive distillation chamber outer wall, and is connected with destructive distillation room, for collecting the dry distillation of coal in destructive distillation room in time
Caused gaseous material（Coal tar, coal gas etc.）, and exported by cracking gas collecting pipe to outside heating chamber.Described destructive distillation room with
It is tightly connected and cracking gas collecting chamber may be contained within heating chamber, and between the destructive distillation room and heating chamber into enclosed construction, combustion
Expect that feeding mechanism supplies fuel in heating chamber extroversion heating chamber（Oxygen+fuel gas）, and the igniter of heated indoor setting
Being burnt after lighting in heating chamber, heat smoke caused by burning directly heats to destructive distillation chamber outer wall, and through destructive distillation room
The discharge flue of inside spin conveying device discharges, and while heat smoke is discharged by discharge flue further from
Inside is heated to destructive distillation room, substantially increases the coal efficiency of heating surface in destructive distillation room.Described helix transporting device passes through
Bearings seat supports, and be connected with drive device, rotated under the gearing of drive device, realize raw coal
Screw propulsion.
Screw propulsion material external-heat dry distillation of coal device of the present invention has a variety of excellent in the category of above-mentioned technical concept
The embodiment of choosing, two preferred embodiments are given below, but the invention is not limited in this, those skilled in the art are at this
The improvement of any known property carried out on innovation concept belongs to the protection category of the present invention.
First preferred embodiment
Below in conjunction with the accompanying drawings 1 the first excellent of screw propulsion material external-heat dry distillation of coal device of the present invention is provided to accompanying drawing 9
Select the concrete composition structure and its course of work of embodiment.Screw propulsion material external-heat dry distillation of coal device of the present invention is preferred
Include two destructive distillation rooms, and the present invention has further innovated position relationship and the material transmission side between two destructive distillation rooms
Formula, but the invention is not limited in this, those skilled in the art can the present invention innovation thinking on the basis of set three with
On destructive distillation room, this belong to the present invention technology category within.As shown in Figures 1 and 2, the preferable spiral pushes away
Charging external-heat dry distillation of coal device includes feeding warehouse 1, cracking gas collecting pipe 2, heating chamber 3, upper destructive distillation room 4, lower destructive distillation room 5, gone out
Feed bin 6, fore bearing support base 7, rear bearing support block 8, helix transporting device 9, cracking gas collecting chamber 10, drive device 11, point
Firearm 12, material connecting leg 13, flue gas guide wire 26, fuel supply room 16 and fuel supply pipe 17.The described conduct of heating chamber 3
The heat exchange space of whole dry distillation of coal device, is formed as heat-seal space structure using heat-insulating material, preferable such as accompanying drawing 1 and 3
Shown, be formed as rectangular parallelepiped space structure, six sides of cuboid are formed using adiabatic wall 14, in the heating chamber
Offer the opening passed through for rotary shaft and associated pipe on front/rear end and top surface, bottom surface, but the adiabatic wall of heating chamber with
Hermetical connecting structure is formed between rotary shaft and associated pipe, ensures the adiabatic sealing property of whole heating chamber 3.Described is upper
Destructive distillation room 4 is close with the lower structure of destructive distillation room 5, and may be contained within the heating chamber 3, described in combination with accompanying drawing 3 to accompanying drawing 5
What upper destructive distillation room 4 and lower destructive distillation room 5 were transversely parallel to each other in heating chamber is fixed in side by side between the front/rear end of heating chamber,
And upper destructive distillation room 4 is vertically excellent closer to the top surface of heating chamber, the upper destructive distillation room 4 and lower destructive distillation room 5 relative to lower destructive distillation room 5
Choosing has penetrating cylinder-like structure, and the leading section of cylinder is sealingly fastened in the front end face of heating chamber, the rearward end of cylinder
The rear end face of heating chamber is sealingly fastened in, and the heat exchange sky of closing is formed between the lateral wall and heating chamber internal face of cylinder
Between.Be upwardly formed charging aperture 20 in side wall of the upper destructive distillation room 4 close to front end, be sealedly connected with the charging aperture 20 into
Feed bin 1, the top surface of the heating chamber offer the opening passed through for feeding warehouse 1, and the top surface of the heating chamber and the charging
It is tightly connected between storehouse, so as to be provided raw coal material in supreme destructive distillation room outside heating chamber by the feeding warehouse.
The lower destructive distillation room 5 has been formed down discharging opening 22 in the side wall of front end, is sealedly connected with out on the discharging opening 22
Feed bin 6, the bottom surface of the heating chamber, which offers, confesses the opening that feed bin 6 passes through, and the bottom surface of the heating chamber and the discharging
It is tightly connected between storehouse, so as to which the destructive distillation product in destructive distillation room can be sent to outside heating chamber by the discharging bin.It is described
Upper destructive distillation room 4 and lower destructive distillation room 5 between by material connecting leg 13 be interconnected, it is described specifically with reference to accompanying drawing 1 to accompanying drawing 3
Between material connecting leg 13 is connected to the side wall of destructive distillation room 4 and lower destructive distillation room 5 near upper destructive distillation room 4 and the lower rear end of destructive distillation room 5,
In the side wall upper shed of upper destructive distillation room 4 and the lower rearward end of destructive distillation room 5, the material connecting leg 13 has front and rear penetrating wedge shape knot
Structure, front and rear open end are sealedly attached to the opening on destructive distillation room 4 and the lower side wall of destructive distillation room 5 respectively, preferably such as the institute of accompanying drawing 3
Show, the bottom surface of the material connecting leg 13 while, the material connecting leg tangent with the bottom cylindrical face of upper destructive distillation room 4 and lower destructive distillation room 5
The cylindrical side that 13 top surface is connected to the destructive distillation chamber outer wall 23 of destructive distillation room 4 and lower destructive distillation room 5 corresponds to horizontal diameter
Position, the two side of the material connecting leg 13 is vertically connected at the cylindrical side of upper destructive distillation room 4 and lower destructive distillation room 5.The thing
Material connecting leg 13 is sealedly attached to destructive distillation room 4 and lower destructive distillation room 5, while material transferring therebetween is realized, destructive distillation room 4 in guarantee
With the sealing inside lower destructive distillation room 5.Transmitted by the coal in destructive distillation room 4 on the material connecting leg 13 from its bottom cylindrical face
To lower destructive distillation room, the continuous transmission of material when upper and lower destructive distillation room is arranged side by side is realized, in this innovation thinking of the present invention
Under the scope of, also can be by each destructive distillation room to shift to install up and down, and with bottom surface between each destructive distillation room when setting multiple destructive distillation rooms
Tangential manner sets material communicating passage.Cracking gas collecting chamber 10, institute are provided with outside the upper destructive distillation room 4 and lower destructive distillation room 5
Cylindrical outer wall surface of the cracking gas collecting chamber 10 along destructive distillation room is stated to set, and the top in the face of cylinder, as shown in Figure 3, institute
State cracking gas collecting chamber 10 and be preferably the cuboid chamber structure extended in destructive distillation ceiling portion along destructive distillation chamber axial direction, cracking
Top surface, end face and the side of gas collecting chamber use planar structure, the bottom of the cylindrical outer wall face of destructive distillation room as cracking gas collecting chamber
Face；Or the cracking gas collecting chamber is the annular cavity type cell structure being formed on the cylindrical outer wall surface of destructive distillation room, cracking gas is received
Integrate end face, the side of room as planar structure, the bottom surface of the cylindrical outer wall face of destructive distillation room as cracking gas collecting chamber, cracking gas is collected
The top surface of room is the arcwall face coaxial with destructive distillation room cylindrical outer wall face.The cracking gas collecting chamber connects with destructive distillation room, is cracking
Be sealedly connected with cracking gas collecting pipe 2 on the top surface of gas collecting chamber, the cracking gas collecting pipe 2 stretch out in upwards heating chamber 3 it
Outside, and between the cracking gas collecting pipe 2 and heating chamber Hermetical connecting structure is formed, so as in upper destructive distillation room 4 and lower destructive distillation room 5
The coal in portion caused oil gas after high-temperature retorting（Tar, pyrolysis gas etc.）Split via what is set on upper destructive distillation room 4 and lower destructive distillation room 5
Collecting chamber of venting one's spleen is collected, and is further exported via cracking gas collecting pipe 2 to outside heating chamber 3, realizes carrying for destructive distillation oil gas
Take.The planform and its big I of the cracking gas collecting chamber determine according to oil and gas content, but said structure is optimum structure.
The cracking gas collecting pipe 2 can be provided with more along cracking gas collecting chamber as needed, as above outside destructive distillation room 4 and lower destructive distillation room 5
Cracking gas collecting chamber two cracking gas collecting pipes can be set respectively.Described cracking gas collecting chamber is integrally formed at destructive distillation room
On, it ensure that the high sealing between destructive distillation room is connected, prevented the possibility that cracking gas is leaked in heating chamber, while cracking gas
Collecting chamber is in together in heating chamber with destructive distillation room ensure that oil gas caused by destructive distillation can be exported smoothly in a gaseous form.
Helix transporting device 9 is provided with described upper destructive distillation room 4 and lower destructive distillation room 5, is filled by the helical feed
Put 9 realizations movement of the raw coal material in retort process in destructive distillation room up and down.The helix transporting device 9 includes the He of rotary shaft 18
The helical blade 19 being fixedly installed in rotary shaft 18, length of the helical blade 19 along the rotary shaft form spiral and led to
Road, the preferable helical blade can use entity spiral face, belt type spiral face, blade screw face or tooth form helicoid structure.
The helix transporting device 9 is in upper and lower destructive distillation indoor location and causes between the outward flange of helical blade 19 and the inwall of destructive distillation room
The gap of 2-5 millimeters is left, the gap is applicant when spiral pusher mechanism is applied into pyrolysis of coal field by long-term examination
Test the coal charge that can either ensure to realize destructive distillation room for summing up it is stable promote, and can is enough prevented between the stuck innovation of helical blade
Gap size.The helical blade 19 is only arranged in the rotary shaft 18 in the destructive distillation chamber interior, and the two of the rotary shaft 18
End is stretched out in outside the destructive distillation room.The front-end and back-end of the specific rotary shaft 18 stretch out in respectively from the both ends of destructive distillation room
Outside heating chamber, and rolling support is on fore bearing support base 7 in front of heating chamber for the front end of rotary shaft 18, the rear end of rotary shaft 18
In heating chamber rear rolling support on rear bearing support block 8, the fore bearing support base 7 and rear bearing support block 8 are rotation
The rotation of axle provides bearings.Rotational sealing structure is formed between the rotary shaft 18 and the rear and front end of destructive distillation room, specifically
Upper destructive distillation room 4 rear and front end port and rotary shaft therebetween through between rotational sealing structure, lower destructive distillation room 5 are set respectively
Rear and front end port and rotary shaft therebetween through between rotational sealing structure is also set respectively, the rotational sealing structure exists
Ensure to form highly dense seal structure to destructive distillation chamber interior while rotary shaft can be rotated freely, the preferable rotational sealing structure
Can use resistant to elevated temperatures sealing brush or other stop sealing change mechanism.The rear end of the rotary shaft 18 is connected to driving dress
11 are put, the preferable shaft rear end that rotates is connected in the output revolving shaft of drive device 11 by feed belt, so as to pass through driving
Device 11 drives rotary shaft to be rotated in destructive distillation room, and then drives the helical blade in rotary shaft to rotate, and turn of helical blade
Dynamic then in promotion destructive distillation room coal charge is promoted along spiral path.The upper destructive distillation room and lower destructive distillation room being arranged side by side in the present invention
Interior rotary shaft can individually or Synchronization Control, and the hand of spiral of helical blade can be in the same direction or oppositely arranged in rotary shaft.When upper and lower
When the hand of spiral of helical blade in destructive distillation room in rotary shaft is identical, the rotation direction of the rotary shaft in control in destructive distillation room with
The rotation direction of rotary shaft in lower destructive distillation room is on the contrary, when the hand of spiral phase of the helical blade in upper and lower destructive distillation room in rotary shaft
Inverse time, the rotary shaft up and down in destructive distillation room is controlled synchronously to rotate in same direction, to ensure charging of the coal charge from upper destructive distillation room front top
After storehouse enters in upper destructive distillation room, the rear end of destructive distillation room is advanced into backward along spiral path under the rotary action of its rotary shaft,
Then by material connecting leg 13 enter lower destructive distillation room, then in lower destructive distillation room under the rotary action of rotary shaft along spiral path forward
The front end of lower destructive distillation room is advanced into, and is discharged from the discharging bin of lower destructive distillation room front end, realizes the steady conveying of material.
Described heating chamber 3 is that internal destructive distillation room carries out external heat by way of fuel combustion, preferably described to add
The bottom surface in hot cell is further connected to fire to fuel supply pipe 17, the fuel supply pipe 17 is externally connected with outside heating chamber
Expect supply room 16, the fuel supply room 16 provides fuel by the fuel supply pipe 17 into the heating chamber, described
The position of connection fuel supply pipe 17 is provided with igniter 12 in heating chamber 3, so passed through from the fuel of fuel supply room 16
When in the entrance heating chamber of fuel supply pipe 17, burnt under the ignition action of igniter in heating chamber, so as to for
Destructive distillation room provides thermal source.Preferable fuel supply room 16 provides raw coke oven gas and oxygen to heating chamber, and both mix in heating chamber
Heat transfer space after conjunction through igniting and between adiabatic wall 14 and destructive distillation chamber outer wall is burnt, and described raw coke oven gas can derive from dry
The gaseous product after oil vapor treatment is evaporated, heat is provided for destructive distillation room using heat smoke caused by burning, realizes resource circulation utilization.
Setting fuel supply pipe 17 can be connected in bottom of heating chamber many places and igniter is set as needed.The present invention is pioneering to be added
The end face in hot cell, the front end face of heating chamber is preferably provided with the flue gas guide wire 26 of connection heating chamber, and innovate
Discharge flue 15 is set in the rotary shaft 18 of the helix transporting device in upper destructive distillation room and lower destructive distillation room, preferably along rotary shaft
Central axis form hollow channel as discharge flue 15, that is, each rotary shaft along its axis formed with hollow channel,
The flue gas guide wire 26 is communicated in the hollow channel, the other end of the hollow channel in rotary shaft in one end of rotary shaft
Connect air, as shown in accompanying drawing 2, accompanying drawing 4 and accompanying drawing 5, so as to combustion product gases in heating chamber in heating chamber to dry
Evaporate after chamber outer wall heated, be directed to via flue gas guide wire 26 in the discharge flue 15 of rotary shaft in destructive distillation room, in flue gas
Rotary shaft is heated when flowing through discharge flue 15, and the coal along rotary shaft periphery screw propulsion is conducted heat to through rotary shaft
On material, destructive distillation heating has been carried out again equivalent in destructive distillation chamber interior, so as to improve the efficiency of heating surface.The discharge flue of rotary shaft
Air is connected in rotary shaft end, so as to which the heat smoke in heating chamber is flowed through in rotary shaft in heating chamber after heat cycles
Portion, and discharged through the discharge flue in rotary shaft by the one end of rotary shaft.The flue gas guide wire 26 connects the row of rotary shaft
Cigarette channel 15 can preferably use a variety of mode of communicating, it can be stretched out in rotary shaft. as the first preferred embodiment as shown in Figure 6
End outside fore bearing support base 7 opens up the gas approach 27 for connecting its central discharge flue 15, and before rotary shaft stretching
End set hubcap 28 outside bearing support block 7, the hubcap are covered on the front end of rotary shaft and supported with fore bearing
Seat 7 connects, and the hubcap does not rotate together with rotary shaft, and is formed between hubcap and rotary shaft end into cigarette space,
Smoke inlet is offered on hubcap, the flue gas guide wire 26 is connected to the smoke inlet of the hubcap 28, and by by axle
The gas approach 27 of the rotary shaft end of end cap cladding connects the discharge flue 15 in rotary shaft center.Also can use such as the institute of accompanying drawing 7
The the second preferred embodiment connection flue gas guide wire 26 and discharge flue 15 shown, the discharge flue of rotary shaft is formed as along rotary shaft
Penetrating hollow channel before and after axis, the sealing of hubcap 28 that the front end of rotary shaft is fixed on fore bearing support base 7 are surrounded,
The hubcap 28 does not rotate together with rotary shaft, in the position of the front opening of the discharge flue of the face rotary shaft of hubcap 28
On offer smoke inlet, the flue gas guide wire 26 is connected to the smoke inlet of the hubcap 28, and combustion product gases are led via flue gas
Skirt 26 is directly entered the front opening of the discharge flue of rotary shaft through hubcap after guiding, and via the discharge flue of rotary shaft
Open rearward end discharge, and no matter how how rotary shaft rotates under this mode, the smoke inlet of hubcap 28 face rotary shaft all the time
The discharge flue entrance of front end, ensure that flue gas is discharged in time.Certainly other flue gas guide wires 26 also may be selected to arrange with rotary shaft
Mode of communicating between cigarette channel.So by this setup of the present invention, heat smoke in heating chamber in heating chamber plus
The inside of two rotary shafts is flowed through after thermal cycle, and the end through two rotary shafts is discharged in outside heating chamber, is realizing that flue gas is suitable
Profit discharge while, the rotary shaft of destructive distillation chamber interior is heated so that the coal charge in destructive distillation room along
When helical orbit promotes, while the rotation on the inside of conduction heating by the destructive distillation chamber outer wall on the outside of helical orbit and helical orbit
The conduction heating on axle surface, the external-heat destructive distillation efficiency of heating surface is not only increased, and improve the homogeneous heating to promoting coal charge
Property, and then substantially increase dry distillation efficiency.
Further is to prevent screw propulsion material external-heat dry distillation of coal device of the present invention under negative pressure or positive pressure operation
Raw coke oven gas in upper destructive distillation room 4 and lower destructive distillation room 5 enters oxygen from charging aperture, discharging opening leakage and upper and lower destructive distillation room（Air）Danger
Danger, can further preferably as illustrated in Figure 8 and 9 reference, more barrels are connected on the feeding warehouse 1 of upper destructive distillation room connection and are connected
Feeding magazine 24, more barrel series connection blanking magazines 25 are connected on the discharging bin 6 of lower destructive distillation room connection, continuous feed is realized and goes out
Material.Specifically when needing charging, the top feed bin inlet valve of more barrel series connection feeding magazines 24 is opened, closes its middle part feed bin
Isolating valve, the at this moment bottom feed bin of more barrel series connection feeding magazines 24 and the isolation of top feed bin, it is ensured that in top feed bin feeding
While bottom feed bin be fed on request to feeding warehouse 1, when top feed bin feed supplement in place after, close top feed bin inlet valve, beat
Middle part feed bin isolating valve is driven, upper and lower feed bin is connected as a single entity, and top bunker raw material enters bottom feed bin under gravity, and this is at present
Portion's feed bin remains to continue to be fed to feeding warehouse 1 on request.Using opposite behaviour when the discharging bin 6 for similarly descending destructive distillation room to connect discharges
The practice, it ensure that the raw coke oven gas on during input and output material in destructive distillation room 4 and lower destructive distillation room 5 will not be let out from charging aperture and discharging opening
Leakage, while oxygen will not be also entered to by charging aperture and discharging opening in upper and lower destructive distillation room, and it is safe for operation to further increase equipment
Property.
Use screw propulsion material external-heat dry distillation of coal device of the present invention carry out the process of fine coal destructive distillation for：Waste coal
The fuel such as gas, oxygen provide to be provided supreme to simultaneously ignition in heating chamber, feeding warehouse of the raw material fine coal through upper destructive distillation room front end
In destructive distillation room, and the rear end of destructive distillation room is flowed in upper destructive distillation room under the impetus of helix transporting device from right to left,
Then lower destructive distillation room is entered by material connecting leg, and again in lower destructive distillation room under the impetus of helix transporting device from a left side to
The right side flows to the front end of lower destructive distillation room, fine coal in upper and lower destructive distillation room along helical orbit it is movable during, uniformly by
The conduction heating on the rotary shaft surface on the inside of the conduction heating and helical orbit of the destructive distillation chamber outer wall on the outside of helical orbit, and carry out
Carbonization decomposition is reacted, and caused gaseous material is collected by cracking gas collecting chamber, and is outwards conveyed by cracking gas collecting pipe, is produced
Solid-state slag charge through lower destructive distillation room front end discharging bin discharge, complete powder coal carbonization.
Second preferred embodiment
Below in conjunction with the accompanying drawings 10 the second of screw propulsion material external-heat dry distillation of coal device of the present invention is provided to accompanying drawing 13
The concrete composition structure and its course of work of preferred embodiment.As shown in accompanying drawing 10 to accompanying drawing 13, spiral of the present invention
Material the second preferred embodiment of external-heat dry distillation of coal device and differing only in for above-mentioned first preferred embodiment are promoted,
In second preferred embodiment, upper destructive distillation room 4 and lower destructive distillation room 5 are in inside heating chamber 3, and fore bearing support base 7 therein is set
The inside of heating chamber 3 is placed in, the back-end sealing of specific upper destructive distillation room 4 and lower destructive distillation room 5 is fixed on the rear end face of heating chamber, on
The front end of destructive distillation room 4 and lower destructive distillation room 5 is in the inside of heating chamber 3, and the rotation of the helix transporting device in destructive distillation room up and down
The front end of axle 18 is stretched out in outside the front end of destructive distillation room, it is outer but still in heating chamber within, the front end of rotary shaft 18 is in heating chamber
In on fore bearing support base 7, the fore bearing support base 7 is arranged in heating chamber rolling support in front of the destructive distillation room in portion.It is described
The rear end of rotary shaft 18 is then stretched out in outside the destructive distillation room and heating chamber, and in heating chamber rear rolling support in rear bearing branch
Support on seat 8.The front-end port of rotational sealing structure, especially destructive distillation room is formed between the rear and front end of rotary shaft 18 and destructive distillation room
Resistant to elevated temperatures rotational sealing structure is set between rotary shaft therebetween through, and the rotational sealing structure can be in the height of heating chamber
Ensure to reach destructive distillation seal request between destructive distillation room and heating chamber under warm environment, while freely rotating for rotary shaft can be provided, it is excellent
The rotational sealing structure of choosing can use resistant to elevated temperatures sealing brush or other refractory seals mechanisms, this rotary seal machine
Structure has widely used in this area, is not described again.It is provided with the rotating shaft with first embodiment identical in addition
Discharge flue 15, but the discharge flue is penetrating before and after being opened up along each rotary shaft central axis in this embodiment
Hollow channel, discharge flue is directly communicates with heating chamber in the front end of rotary shaft, and discharge flue is direct in the rear end of rotary shaft
Air is communicated in, so eliminating the setting of the structure members such as flue gas guide wire and hubcap in present embodiment, burn cigarette
After gas heats in heating chamber to destructive distillation chamber outer wall, enter directly in heating chamber via the front opening of rotary shaft and rotate
In discharge flue in axle, and the open rearward end through rotary shaft is expelled in air.In addition other structures feature and
The specific course of work is identical with above-mentioned first preferred embodiment, is not repeated to describe herein.It is second excellent at this
Select in embodiment, it is completely set up in heating by this helix transporting device by upper destructive distillation room and lower destructive distillation room and its inside
Interior, the sealing of heating chamber is improved to greatest extent, reduce the heat loss of heating chamber, improve the destructive distillation efficiency of heating surface；
Simultaneously because the front end of the rotary shaft of helix transporting device in heating chamber inner support on fore bearing support base, so along rotary shaft
The discharge flue that central axis opens up is directly communicates with heating chamber in the front end of rotary shaft, without setting flue gas guide wire etc. in addition
Part can directly export the combustion product gases in heating chamber to outside heating chamber, while heating efficiency is improved significantly
System architecture is simplified, ensure that safe operation.
Screw propulsion material external-heat dry distillation of coal device of the present invention is that applicant passes through long-term innovation Test Summary
The system that can be good at being applied to low temperature distillation in external-heat fine coal out, has following technological innovation feature：
1）, the present invention first in dry distillation of coal device introduce helix transporting device promote raw coal material, innovated raw coal and pushed away
Enter means, solve the problems, such as conventional upright stove limitation pyrolysis yield, avoid the device structure that conventional track conveyer belt comes and answer
Miscellaneous, the problem of sealing difficulty is big, fault rate is high, raw coal material being slowly advanced in destructive distillation and thermally equivalent is effectively ensured,
And dust from flying will not be produced, can wide popularization and application in fine coal destructive distillation industrialization, wide market.
2）, the present invention initiates more than two destructive distillation rooms is arranged in parallel in the heating chamber of sealing, and innovate destructive distillation room
Spiral pusher mode under material mode of communicating and parallel connection, substantially increases dry distillation efficiency.
3), the present invention is pioneering introduces combustion product gases in the rotary shaft of helix transporting device, passes through the side of inside and outside heat transfer
Formula heats to the coal sample in destructive distillation room, not only substantially increases the efficiency of heating surface, and realizes recycling for heat energy, drop
The low heat of discharged gas fume.
4）, the present invention cracking gas collection device is set on destructive distillation chamber outer wall in heating chamber, cracking gas collecting chamber is set
Be placed in the top of destructive distillation room and lower destructive distillation room, can many places opening, oil gas caused by destructive distillation can discharge uniformly in time, lead to
Crossing reduces the discharge speed of carbonizing gas, improves carbonizing gas（Raw coke oven gas）The settling efficiency of middle dust, it is entirely avoided pass
System afterbody the problem of air accumulation amount is big when individually discharging gas, while reduce when being placed in destructive distillation room in heating chamber and heating chamber
Isolation requirement because oil gas caused by destructive distillation is collected in time from destructive distillation room side wall, destructive distillation room is filled up with spiral path in coal charge
On the premise of inside to a certain extent limit value oil gas from destructive distillation room end（Afterbody）The possibility to leak, and then improve dry
Efficiency is evaporated, ensure that safe for operation.
5）, coal charge is based on indirectly heat destructive distillation, raw coke oven gas caused by destructive distillation in upper destructive distillation room and lower destructive distillation room in the present invention
Calorific value is high, and methane content is high, and the heat in heating chamber may be from destructive distillation used heat, improve heat utilization efficiency.The present invention can simultaneously
The fore bearing support base of helix transporting device is arranged in heating chamber as needed, can so improve heating to greatest extent
Room closure, and by the use of the hollow channel of rotary shaft in built-in helix transporting device as discharge flue in heating chamber,
System architecture is simplified while improving the efficiency of heating surface, improves system operation security.
6）, screw propulsion material external-heat dry distillation of coal device of the present invention passes through to connect on feeding warehouse and discharging bin and expects more
Cylinder series connection feed bin, raw coke oven gas is avoided under negative pressure or positive pressure operation in destructive distillation room from feed inlet and outlet leakage and oxygen from input and output material
The danger that mouth enters in destructive distillation room, avoid the possibility of pyrolytic process blast.
7）, screw propulsion material external-heat dry distillation of coal device of the present invention operating condition it is flexible, wherein upper destructive distillation room and
The pressure of lower destructive distillation room can carry out flexible modulation, raw coke oven gas flow velocity in destructive distillation room can be reduced by improving pressure, so as to have
Beneficial to the sedimentation of dust in raw coke oven gas；And destructive distillation room may operate in negative pressure or malleation destructive distillation condition；Can under positive pressure operation
The compression power consumption of raw coke oven gas following process is reduced, retorting time can be shortened under negative-pressure operation, improve the output capacity of tar, so as to
Device of the present invention has stronger industrialization amplification application prospect.
8）, the present invention resistant to elevated temperatures sealing brush or stuffing seal are used between destructive distillation room and helix transporting device,
Not stop sealing replacing can be realized, it is ensured that the macrocyclic stable operation of whole device.
It the above is only and the preferred embodiment of the present invention is described, technical scheme is not limited to
This, any known deformation that those skilled in the art are made on the basis of the major technique design of the present invention belongs to the present invention
Claimed technology category, the specific protection domain of the present invention are defined by the record of claims.
Claims (9)
- A kind of 1. screw propulsion material external-heat dry distillation of coal device, it is characterised in that including：Heating chamber（3）, destructive distillation room, spiral transferring Send device（9）, cracking gas collection device and drive device, the cracking gas collection device is connected with the destructive distillation room, described The heated portion of destructive distillation room is in the heating chamber（3）It is interior, and the destructive distillation space of the destructive distillation room and the heating chamber（3）Plus Heat space is isolated, formed with charging aperture and discharging opening, the helix transporting device on the destructive distillation room（9）It is arranged at described dry Interior is evaporated, the drive device drives the helix transporting device（9）Rotated in the destructive distillation room, the helix transporting device （9）In be provided with discharge flue（15）, the heating chamber（3）With the discharge flue（15）Connection；The cracking gas collects dress Put including cracking gas collecting chamber（10）With cracking gas collecting pipe（2）, the cracking gas collecting chamber（10）It is formed at the destructive distillation room Outside wall surface on, and connected with the destructive distillation room, the cracking gas collecting chamber（10）The heating chamber is in the destructive distillation room （3）It is interior, the heating chamber（3）Be formed as the heating space of sealing, the cracking gas collecting pipe（2）One end be communicated in described split Vent one's spleen collecting chamber（10）, the cracking gas collecting pipe（2）The other end stretch out in the heating chamber（3）Outside.
- 2. screw propulsion material external-heat dry distillation of coal device according to claim 1, it is characterised in that also include fuel confession Answer room（16）And fuel supply pipe（17）, the fuel supply room（16）Pass through the fuel supply pipe（17）It is connected to institute State heating chamber（3）, and the heating chamber is in connection fuel supply pipe（17）Position be provided with igniter（12）, the heating Room is heated by fuel combustion from the outside of destructive distillation room to destructive distillation room, and the combustion product gases in the heating chamber pass through spiral transferring Send device（9）In discharge flue（15）Discharge, and combustion product gases enter in discharge process from the inside of destructive distillation room to destructive distillation room Row heating.
- 3. screw propulsion material external-heat dry distillation of coal device according to claim 2, it is characterised in that also include feeding warehouse （1）And discharging bin（6）, the charging aperture is opened up at the top of the destructive distillation room（20）, the feeding warehouse（1）One end be connected to institute State charging aperture（20）, the feeding warehouse（1）The other end stretch out in the heating chamber（3）Outside and it is close with the adiabatic wall of heating chamber Envelope connection, the bottom of the destructive distillation room opens up the discharging opening（22）, the discharging bin（6）One end be connected to the discharging opening （22）, the discharging bin（6）The other end stretch out in the heating chamber（3）Outside and be tightly connected with the adiabatic wall of heating chamber.
- 4. the screw propulsion material external-heat dry distillation of coal device according to claim any one of 1-3, it is characterised in that described dry Evaporating room includes upper destructive distillation room（4）With lower destructive distillation room（5）, the upper destructive distillation room（4）With lower destructive distillation room（5）In the heating chamber simultaneously Row is set, the upper destructive distillation room（4）With lower destructive distillation room（5）Between pass through material connecting leg（13）It is interconnected, in upper destructive distillation room（4） With lower destructive distillation room（5）Inside it is provided with the helix transporting device（9）, in upper destructive distillation room（4）With lower destructive distillation room（5）It is respectively provided with outside There is the cracking gas collecting chamber（10）.
- 5. screw propulsion material external-heat dry distillation of coal device according to claim 4, it is characterised in that the upper destructive distillation room （4）With lower destructive distillation room（5）What is be parallel to each other in the heating chamber is arranged side by side, and upper destructive distillation room（4）Relative to lower destructive distillation room （5）Closer to the top surface of heating chamber, the upper destructive distillation room（4）With lower destructive distillation room（5）Cylinder-like structure is respectively provided with, it is described dry Evaporate room（4）Charging aperture, the lower destructive distillation room are offered at the top of the cylinder side wall of front end upwards（4）The cylinder side wall bottom of front end to Under offer discharging opening, the upper destructive distillation room（4）With lower destructive distillation room（5）Connected entrance is offered on the cylinder side wall of rear end, it is described Material connecting leg（13）Front and back end portses be connected to destructive distillation room（4）With lower destructive distillation room（5）Connected entrance, and material connecting leg （13）Bottom surface simultaneously with upper destructive distillation room（4）With lower destructive distillation room（5）Cylinder bottom surface it is tangent, the upper destructive distillation room（4）Done with lower Evaporate room（5）Interior helix transporting device（9）Coal charge screw propulsion it is in opposite direction.
- 6. the screw propulsion material external-heat dry distillation of coal device according to claim any one of 1-3, it is characterised in that also include There are bearing support block, the helix transporting device（9）Including rotary shaft（18）And helical blade（19）, the helical blade（19） The rotary shaft is arranged in destructive distillation chamber interior（18）On, and along rotary shaft（18）Helical duct axially is formed in destructive distillation room, The rotary shaft（18）Both ends stretch out in outside the destructive distillation room, and the rotary shaft（18）Both ends supported outside destructive distillation room In on the bearing support block, forming rotational sealing structure, and institute between the both ends port of the destructive distillation room and the rotary shaft State rotary shaft（18）Front and rear penetrating discharge flue is formed along its center axis（15）, the drive device is connected in described One end of rotary shaft.
- 7. screw propulsion material external-heat dry distillation of coal device according to claim 6, it is characterised in that before the destructive distillation room Both ends are individually fixed in the rear and front end face of the heating chamber afterwards, and the destructive distillation room and the junction of heating chamber form sealing knot Structure, the rotary shaft（18）Both ends stretch out in outside the heating chamber, the bearing support block includes fore bearing support base（7） With rear bearing support block（8）, the rotary shaft（18）Front end supported in the front rolling support of heating chamber in the fore bearing Seat（7）On, the rotary shaft（18）Rear end heating chamber rear rolling support after described bearing support block（8）On, institute State drive device（11）It is connected in the rotary shaft（18）Rear end, the heating chamber（3）Pass through flue gas guide wire（26） It is communicated in the discharge flue（15）.
- 8. screw propulsion material external-heat dry distillation of coal device according to claim 7, it is characterised in that also include hubcap （28）, the hubcap（28）It is sealedly attached to the fore bearing support base（7）, and by the rotary shaft（18）Drive end bearing bracket set In it, the hubcap（28）On offer connection rotary shaft discharge flue gas approach（27）, the flue gas guide wire （26）One end be connected to the heating chamber, the flue gas guide wire（26）The other end be connected to the gas approach（27）.
- 9. screw propulsion material external-heat dry distillation of coal device according to claim 6, it is characterised in that behind the destructive distillation room The rear end face of the heating chamber is fixed at end, and the destructive distillation room and the junction of heating chamber form sealing structure, the rotation Axle（18）The back-end ports of rear end from the destructive distillation room stretch out in outside the heating chamber, the bearing support block includes front axle Hold support base（7）With rear bearing support block（8）, the rotary shaft（18）Rear end heating chamber rear rolling support in described Bearing support block afterwards（8）On, the fore bearing support base（7）It is arranged at the heating chamber（3）Within, the rotary shaft（18）'s Front end in heating chamber rolling support in the fore bearing support base（7）On, the drive device（11）It is connected in described Rotary shaft（18）Rear end, the heating chamber（3）Directly connect the discharge flue of the rotary shaft（15）.
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| CN110618019A (en) * | 2019-08-31 | 2019-12-27 | 南京理工大学 | Pulverized coal dynamic pyrolysis device |
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| CN105907415A (en) * | 2016-06-06 | 2016-08-31 | 山东天时空间钢结构工程有限公司 | Horizontal oil shale dry distillation device |
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| CN105482841A (en) | 2016-04-13 |
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