CN205473583U

CN205473583U - Built -in spiral pushes away outer hot type coal carbonization device of material entirely

Info

Publication number: CN205473583U
Application number: CN201620031605.1U
Authority: CN
Inventors: 王崇峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-14
Filing date: 2016-01-14
Publication date: 2016-08-17
Anticipated expiration: 2026-01-14

Abstract

The utility model provides a built -in spiral pushes away outer hot type coal carbonization device of material entirely, include: heating chamber, retort house, spiral delivery mechanism, bearing supporting seat, advance discharge mechanism and drive arrangement, retort house sets up in the heating chamber, advances discharge mechanism and connects in retort house, and spiral delivery mechanism sets up in retort house and supports through the bearing supporting seat, and drive arrangement connects in spiral delivery mechanism, is provided with spiral delivery mechanism 2 among the spiral delivery mechanism, and in spiral delivery mechanism 2's spiral delivery mechanism 4 was in the heating chamber, the heating chamber passed through spiral delivery mechanism 2 and external intercommunication. The utility model discloses an adoption spiral pushes away feed mechanism and carries out the raw coal propulsion, directly draws through raw materials advancing device in the heating chamber at the inside parallelly connected a plurality of retort house of same closed heating chamber, the flue gas that will burn, and realization heat energy cyclic utilization has solved the raw coal among the coal carbonization and has advanced the problem, has improved dry distillation heating efficiency, has advantages such as the dry distillation coal is heated evenly, heating efficiency is high, tar yield height.

Description

A kind of complete built-in spiral pusher external-heat dry distillation of coal device

Technical field

This utility model relates to dry distillation of coal technology, is specifically related to a kind of complete built-in spiral pusher external-heat dry distillation of coal device, belongs to low temperature distillation technical field in fine coal.

Background technology

The pyrolysis of fine coal retorting technique, also referred to as coal carbonization or coal, refers to that coal heats under conditions of isolation air, the burnt oil and gas inside coal is evaporated, obtains the process of tar, coal gas, semi-coke.This technology resulted from for 19th century the earliest, originate from Germany, preparing coal tar it is mainly used at the beginning of utility model, it is also used for producing hard coke charcoal and fuel gas, owing to the energy conversion rate of this technology is the highest, it is considered the third coal conversion technology arranged side by side with coal gasification, coal liquefaction always both at home and abroad, is also the developing direction of clean coal utilization, meets national energy policy.

Large-scale coalfield it is found that continuously on the Inner Mongol of China, Xinjiang and other places.These coalfields mainly based on high volatile low-order coal, account for coal resources in China reserves more than 50%.The volatile component of brown coal therein and jet coal accounts for volatile component in more than the 37% of raw coal dry weight, dross coal and weakly caking coal and accounts for the 20%～37% of raw coal dry weight.These coals reserves in coal resources in China are bigger, have that moisture is big, caloric value is low, chemical reactivity is good, the inflammable feature such as frangible, it is unfavorable for directly burning and transporting, and the thermal efficiency that directly burns is relatively low, greenhouse gas emissions are big, and carbonization is the good method that these lower quality coal carry out upgrading.

The exploitation of the most domestic pyrolysis of coal new technology is the most active, provides technical condition also to the scale of pyrolysis of coal, Poly-generation.Such as Zhejiang University just proposed the imagination of thermoelectricity gas multi-production process as far back as 1987, and applied for the china national practical new-type patent (patent No. 92100505.2, circulating fluidized bed heat-power-gas-tar multi-joint-production apparatus is developed ", Dalian University of Technology is developing hot solid carrier devolatilization new technique the most always, has completed the laboratory experiments of multiple oil shale, brown coal.But with regard to current present situation in general, domestic coal carbonization industrialization is also in the starting stage, mostly using upright square lump coal pyrolysis oven, there is the most serious problem in retort process, the raw coke oven gas calorific value such as produced during dry distilling is low, normal pressure or pressure-fired are to there is common problem.nullWhat the Present Domestic dry distillation of coal had industrial advantages is dry distillation of coal technology based on external-heat，Namely coal carbonization process and heating process are separated，And the subject matter affecting external-heat dry distillation of coal efficiency is propulsion mode and the efficiency of heating surface of wherein coal，What in current external-heat dry distillation of coal equipment, the employing of raw coal propulsion mode was more is that gravity based on upright furnace advances、Crawler belt conveying advances、Shaft rolls propelling etc.，These raw coal propulsion modes have bigger industrialization defect in actual use，Advance such as gravity based on upright furnace and shaft rolls Push Technology，Be limited to that the equipment volume of gas retort can not do is the biggest，Directly limit the pyrolysis yield of coal，Crawler belt conveying advances the complexity that then can cause device structure、The increase of sealing difficulty and the raising of equipment failure rate，Raw coal propulsion mode in the most existing pyrolysis of coal technology generally also exists bigger defect.In external-heat dry distillation of coal technology, improve the efficiency of heating surface be always its key factor needing to consider, the efficiency of heating surface in pyrolysis and coal propulsion mode are not the most combined consideration by prior art.Therefore a kind of external-heat dry distillation of coal device is innovated significant for the pyrolysis industrialization promoting coal.

Utility model content

nullThis utility model is based on above-mentioned prior art problem，Innovation proposes a kind of complete built-in spiral pusher external-heat dry distillation of coal device，The mode of screw propulsion material that uses in dry distillation of coal device innovated first realizes the propelling to raw coal，That innovates first is arranged in parallel multiple dry distilling room in the heating chamber of same closing，Being introduced by combustion product gases of innovating first realizes recycling of heat energy in raw material propulsion plant，Innovate first the rear support of helix transporting device is built in heating chamber in realize totally enclosed conduction of heat，The most well solve the raw coal in existing dry distillation of coal technology and advance problem，And substantially increase the dry distilling efficiency of heating surface with new way，There is retort process coal be heated evenly、Retorting time is short、The efficiency of heating surface is high、Tar yield is high、Raw coke oven gas calorific value is high、Dustiness is low、The particular advantages such as economic well-being of workers and staff is good，The most whole dry distillation of coal device easily realizes、Simple to operate，The making requiring to carry out many sizes can be amplified according to industrialization，Marketing has a extensive future.

The technical scheme that the above-mentioned technical problem of this utility model solution is taked is as follows:

A kind of complete built-in spiral pusher external-heat dry distillation of coal device, including: heating chamber 3, dry distilling room, helix transporting device 9 and driving means, described dry distilling room is arranged in described heating chamber 3, it is formed with charging aperture and discharging opening on described dry distilling room, it is indoor that described helix transporting device 9 is arranged at described dry distilling, described driving means drives described helix transporting device 9 to rotate in described dry distilling indoor, described helix transporting device 9 is provided with discharge flue 15, the gas approach of described discharge flue 15 is in described heating chamber, described heating chamber 3 is in communication with the outside by described discharge flue 15.

nullFurther according to complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model，The most also include bearing support block，The rear end face of described heating chamber is fixed in the rear end of wherein said dry distilling room，And the junction of dry distilling room and heating chamber is formed and seals structure，The front end of described dry distilling room is in described heating chamber，Form sealing between outer wall and the inwall of heating chamber of described dry distilling room adds heat space，Described helix transporting device 9 includes rotary shaft 18 and helical blade 19，Described helical blade 19 is arranged in described rotary shaft 18 in dry distilling chamber interior，And along rotary shaft 18 axially at dry distilling indoor formation helical duct，The two ends of described rotary shaft 18 stretch out in outside described dry distilling room，And between two ends port and the described rotary shaft of described dry distilling room, form rotational sealing structure，In described discharge flue 15 is arranged at described rotary shaft and it is isolated with described dry distilling room，The two ends of described rotary shaft 18 are supported on described bearing support block，Described driving means is in transmission connection in the end of described rotary shaft.

Further according to complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model, wherein said bearing support block includes that fore bearing supports seat 7 and rear bearing supports seat 8, the rear end of described rotary shaft 18 is outside the back-end ports of described dry distilling room stretches out in described heating chamber, and the rear end of described rotary shaft 18 supports on seat 8 at the rear rolling support of heating chamber in described rear bearing, within the front end of described rotary shaft and described fore bearing support seat 7 are in described heating chamber 3, the front end of described rotary shaft 18 rolling support in heating chamber supports on seat 7 in described fore bearing, described driving means 11 is in transmission connection in the rear end of described rotary shaft 18, described discharge flue 15 is hollow channel penetrating before and after the formation of described rotary shaft central axis.

Further according to complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model, the most also include cracking gas collecting chamber 10 and cracking gas collecting pipe 2, described cracking gas collecting chamber 10 is formed in the outside wall surface of described dry distilling room, and connect with described dry distilling room, described cracking gas collecting chamber 10 is in described heating chamber 3, one end of described cracking gas collecting pipe 2 is communicated in described cracking gas collecting chamber 10, is tightly connected outside the other end of described cracking gas collecting pipe 2 stretches out in described heating chamber 3 and with the adiabatic wall of heating chamber.

Further according to complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model, the most also include fuel Supply House 16 and fuel supply pipe 17, described fuel Supply House 16 is connected to described heating chamber 3 by described fuel supply pipe 17, and described heating chamber is provided with lighter 12 in the position connecting fuel supply pipe 17, dry distilling room is heated from the outside of dry distilling room by described heating chamber by fuel combustion, combustion product gases in described heating chamber is discharged by described discharge flue 15, and dry distilling room is heated in discharge process by combustion product gases from the inside of dry distilling room.

Further according to complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model, also include feeding warehouse 1 and discharging bin 6, described charging aperture 20 is offered at the top of described dry distilling room, one end of described feeding warehouse 1 is connected to described charging aperture 20, it is tightly connected outside the other end of described feeding warehouse 1 stretches out in described heating chamber 3 and with the adiabatic wall of heating chamber, described discharging opening 22 is offered in the bottom of described dry distilling room, one end of described discharging bin 6 is connected to described discharging opening 22, it is tightly connected outside the other end of described discharging bin 6 stretches out in described heating chamber 3 and with the adiabatic wall of heating chamber.

Further according to complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model, wherein said feeding warehouse 1 connects and has many barrels series connection feeding magazine 24, described discharging bin 6 connects and has many barrels series connection blanking magazine 25.

Further according to complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model, wherein said helical blade 19 uses the gap between entity spiral face structure, belt type spiral face structure, blade screw face structure or profile of tooth helicoid structure, and the internal face of the outward flange of described helical blade 19 and described dry distilling room to be in 2-5 millimeter.

Further according to complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model, wherein said dry distilling room includes dry distilling room 4 and lower dry distilling room 5, described upper dry distilling room 4 and lower dry distilling room 5 are arranged side by side in described heating chamber, it is interconnected by material connecting leg 13 between described upper dry distilling room 4 and lower dry distilling room 5, in upper dry distilling room 4 and lower dry distilling room 5, it is provided with described helix transporting device 9, outside upper dry distilling room 4 and lower dry distilling room 5, is provided with the cracking gas collecting chamber 10 for collecting dry distilling gaseous products.

nullFurther according to complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model，What wherein said upper dry distilling room 4 and lower dry distilling room 5 were parallel to each other in described heating chamber is arranged side by side，And upper dry distilling room 4 relative to lower dry distilling room 5 closer to the end face of heating chamber，Described upper dry distilling room 4 and lower dry distilling room 5 are respectively provided with cylinder-like structure，The cylinder side wall top of front end, described upper dry distilling room 4 upwards offers charging aperture，Discharging opening is offered downwards bottom the cylinder side wall of front end, described lower dry distilling room 4，Connected entrance is offered on the cylinder side wall of described upper dry distilling room 4 and rear end, lower dry distilling room 5，Before and after described material connecting leg 13, port is connected to dry distilling room 4 and the connected entrance of lower dry distilling room 5，And the bottom surface of material connecting leg 13 is the most tangent with the cylinder bottom surface of upper dry distilling room 4 and lower dry distilling room 5，The coal charge screw propulsion of the helix transporting device 9 in described upper dry distilling room 4 and lower dry distilling room 5 is in opposite direction.

The technical solution of the utility model has techniques below and creates and technique effect:

1), this utility model introduces helix transporting device first in dry distillation of coal device and advances raw coal material, innovate raw coal propulsioning means, solve the problem that conventional upright stove limits pyrolysis yield, avoid the problem that device structure is complicated, sealing difficulty is big, fault rate is high that conventional track conveying brings, raw coal material being slowly advanced and thermally equivalent in dry distilling has been effectively ensured, and dust from flying will not be produced, can wide popularization and application in fine coal dry distilling industrialization, wide market.

2), this utility model initiate and be arranged in parallel plural dry distilling room in the heating chamber sealed, and innovate the spiral pusher mode under the material mode of communicating of dry distilling room and parallel connection, substantially increase dry distillation efficiency.

3), in the rotary shaft that combustion product gases is introduced helix transporting device that this utility model is pioneering, by the way of inside and outside heat transfer, the coal sample that dry distilling is indoor is heated, not only substantially increase the efficiency of heating surface, and achieve recycling of heat energy, reduce the heat of discharged gas fume.

4), the pioneering fore bearing support seat of helix transporting device is built in heating chamber of this utility model, improve the closure of heating chamber to greatest extent, and utilize in built-in helix transporting device the hollow channel of rotary shaft as discharge flue in heating chamber, while improving the efficiency of heating surface, simplify system structure, improve system safety in operation.

null5)、This utility model arranges cracking gas collection device on the dry distilling chamber outer wall in heating chamber，Cracking gas collecting chamber is arranged at upper dry distilling room and the top of lower dry distilling room，Can many places opening，The oil gas produced during dry distilling can be discharged the most uniformly，By reducing the discharge speed of carbonizing gas，Improve the settling efficiency of dust in carbonizing gas (raw coke oven gas)，Completely avoid the problem that when traditional tail individually discharges gas, gas aggregate amount is big，Reduce the isolation requirement with heating chamber when dry distilling indoor are placed in heating chamber simultaneously，Because the oil gas that dry distilling produces is collected in time from dry distilling room sidewall，The probability that limit value oil gas leaks from end, dry distilling room (afterbody) to a certain extent on the premise of coal charge fills up dry distilling chamber interior with spiral path，And then improve dry distillation efficiency，Ensure that operation safety，And then improve dry distillation efficiency.

6), upper dry distilling room and lower dry distilling indoor coal charge are based on indirectly heating dry distilling in this utility model, and the raw coke oven gas calorific value that dry distilling produces is high, and methane content is high, and the heat in heating chamber may be from dry distilling used heat, improves heat utilization efficiency.

7), complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model is by connecting many barrels series connection feed bin on feeding warehouse and discharging bin, avoid dry distilling indoor raw coke oven gas under negative pressure or positive pressure operation and enter, from feed inlet and outlet, the danger that dry distilling is indoor from feed inlet and outlet leakage and oxygen, it is to avoid the probability of pyrolytic process blast.

8), the operating condition of complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model is flexible, the pressure wherein going up dry distilling room and lower dry distilling room can carry out flexible, dry distilling indoor raw coke oven gas flow velocity can be reduced by improving pressure, thus the beneficially sedimentation of dust in raw coke oven gas；And dry distilling room may operate in negative pressure or malleation dry distilling condition；The compression power consumption of raw coke oven gas following process can be reduced under positive pressure operation, retorting time can be shortened under negative-pressure operation, improve the output capacity of tar, thus device described in the utility model has stronger industrialization and amplifies application prospect.

9), this utility model uses resistant to elevated temperatures sealing brush or stuffing seal between dry distilling room and helix transporting device, it is possible to realizes not stop sealing and changes, it is ensured that the macrocyclic stable operation of whole device.

Accompanying drawing explanation

Accompanying drawing 1 is the cross-section front view of complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model；

Accompanying drawing 2 is the cross sectional plan view of complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model；

Accompanying drawing 3 is the cross sectional side view of complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model；

Accompanying drawing 4 is the cross-section front view of upper dry distilling room in complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model；

Accompanying drawing 5 is the cross-section front view of lower dry distilling room in complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model；

Accompanying drawing 6 is the structural representation arranging many barrels series connection feeding magazine in complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model on feeding warehouse；

Accompanying drawing 7 is the structural representation arranging many barrels series connection blanking magazine in complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model on discharging bin.

In figure, the implication of each reference is as follows:

1-feeding warehouse, 2-cracking gas collecting pipe, 3-heating chamber, 4-upper dry distilling room, dry distilling room under 5-, 6-discharging bin, 7-fore bearing supports seat, and 8-rear bearing supports seat, 9-helix transporting device, 10-cracking gas collecting chamber, 11-driving means, 12-lighter, 13-material connecting leg, 14-adiabatic wall, 15-discharge flue, 16-fuel Supply House, 17-fuel supply pipe, 18-rotary shaft, 19-helical blade, 20-charging aperture, 21-gas outlet, 22-discharging opening, 23-dry distilling chamber outer wall, 24-many barrels series connection feeding magazine, 25-many barrels series connection blanking magazine.

Detailed description of the invention

Below in conjunction with accompanying drawing, the technical solution of the utility model is described in detail, so that those skilled in the art can be more clearly understood from this utility model, but and is not so limited protection domain of the present utility model.

Complete built-in spiral pusher external-heat dry distillation of coal device provided by the utility model uses screw propulsion material and external heating mode to carry out coal carbonization, and whole device includes heating chamber, dry distilling room, helix transporting device, cracking gas collecting chamber, bearing support block, feeding warehouse, cracking gas collecting pipe, discharging bin, driving means, lighter and fuel supply device.Described dry distilling room carries out the reaction compartment of dry distilling as coal, coal generates the materials such as semicoke, coalite tar, coal gas in dry distilling indoor decomposes, dry distilling room connects feeding warehouse and discharging bin, inputted to dry distilling indoor offer raw coal by feeding warehouse, by discharging bin, the solid products such as coal semicoke after the dry distilling of dry distilling indoor are exported, it is indoor that described helix transporting device is arranged at dry distilling, realize feed coal spiral promotion in retort process in dry distilling indoor by helix transporting device, and make coal thermally equivalent during screw propulsion；Described cracking gas collecting chamber is close to dry distilling chamber outer wall and is arranged, and connects with dry distilling room, collects the gaseous material (coal tar, coal gas etc.) that the dry distillation of coal of dry distilling indoor produces in time, and is derived outside heating chamber by cracking gas collecting pipe.Described dry distilling room and cracking gas collecting chamber may be contained within heating chamber, and it is tightly connected into enclosed construction between described dry distilling room and heating chamber, fuel supply device is in heating chamber extroversion heating chamber supply fuel (oxygen+fuel gas), and the lighter of heated indoor setting light after burn in heating chamber, dry distilling chamber outer wall is directly heated by the heat smoke that burning produces, and discharge through the discharge flue of dry distilling indoor helix transporting device, substantially increase the coal efficiency of heating surface that dry distilling is indoor.Described helix transporting device passes through bearings seat supports, and the rear bearing of helix transporting device supports seat and is arranged in heating chamber, improve the sealing of heating chamber to greatest extent, helix transporting device is in transmission connection with driving means, rotate under the gearing of driving means, it is achieved the screw propulsion of raw coal.

1 to accompanying drawing 5 provides particular make-up structure and the work process thereof of complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model below in conjunction with the accompanying drawings.Complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model preferably includes two dry distilling rooms, and this utility model innovated the position relationship between two dry distilling rooms and material transfer mode further, but this utility model is not limited thereto, those skilled in the art can arrange the dry distilling room of more than three on the basis of innovation thinking of the present utility model, within this broadly falls into technology category of the present utility model.As shown in Figures 1 and 2, preferred described complete built-in spiral pusher external-heat dry distillation of coal device includes feeding warehouse 1, cracking gas collecting pipe 2, heating chamber 3, upper dry distilling room 4, lower dry distilling room 5, discharging bin 6, fore bearing supports seat 7, rear bearing supports seat 8, helix transporting device 9, cracking gas collecting chamber 10, driving means 11, lighter 12, material connecting leg 13, fuel Supply House 16 and fuel supply pipe 17.Described heating chamber 3 is as the heat exchange space of whole dry distillation of coal device, adiabator is used to be formed as heat-seal space structure, preferably as shown in accompanying drawing 1 and 3, be formed as rectangular parallelepiped space structure, six sides of cuboid all use adiabatic wall 14 to constitute, the rear end face and end face, bottom surface of described heating chamber offer the opening passed for rotary shaft and associated pipe, but form Hermetical connecting structure between the adiabatic wall of heating chamber and rotary shaft and associated pipe, it is ensured that the adiabatic sealing property of whole heating chamber 3.Described upper dry distilling room 4 and lower dry distilling room 5 structure are close, and may be contained within described heating chamber 3, in combination with accompanying drawing 3 to accompanying drawing 5, what described upper dry distilling room 4 and lower dry distilling room 5 were transversely parallel to each other in heating chamber be arranged side by side before and after heating chamber between end face, and upper dry distilling room 4 relative to lower dry distilling room 5 vertically closer to the end face of heating chamber, described upper dry distilling room 4 and lower dry distilling room 5 preferably have cylinder-like structure, and the cylinder front end of upper dry distilling room 4 and lower dry distilling room 5 rotary shaft interior with it forms rotary seal attachment structure, the cylinder back-end sealing of upper dry distilling room 4 and lower dry distilling room 5 is fixed on the rear end face of heating chamber, and between the outer wall and heating chamber inwall of cylinder, form the heat exchange space of closing.On the sidewall of front end, charging aperture 20 it has been upwardly formed in upper dry distilling room 4, described charging aperture 20 is sealedly connected with feeding warehouse 1, the end face of described heating chamber offers the opening passed for feeding warehouse 1, and be tightly connected between end face and the described feeding warehouse of described heating chamber, thus by described feeding warehouse, raw coal material can provide from heating chamber supreme dry distilling indoor.On the sidewall of front end, discharging opening 22 it has been formed down in described lower dry distilling room 5, described discharging opening 22 is sealedly connected with discharging bin 6, the bottom surface of described heating chamber offers the opening passed for discharging bin 6, and be tightly connected between bottom surface and the described discharging bin of described heating chamber, thus the dry distilling product that dry distilling is indoor can be sent to outside heating chamber by described discharging bin.nullIt is interconnected by material connecting leg 13 between described upper dry distilling room 4 and lower dry distilling room 5，Concrete combination accompanying drawing 1 to accompanying drawing 3，Described material connecting leg 13 is connected between the sidewall of dry distilling room 4 and lower dry distilling room 5 near upper dry distilling room 4 and rear end, lower dry distilling room 5，In upper dry distilling room 4 and the sidewall upper shed of lower dry distilling room 5 rearward end，The wedge structure that described material connecting leg 13 is penetrating before and after having，Front and rear open end is sealedly attached to the opening on dry distilling room 4 and lower dry distilling room 5 sidewall respectively，The most as shown in Figure 3，The bottom surface of described material connecting leg 13 is the most tangent with the bottom cylindrical face of upper dry distilling room 4 and the dry distilling chamber outer wall 23 of lower dry distilling room 5，The end face of described material connecting leg 13 is connected to the cylindrical side position corresponding to horizontal diameter of the dry distilling chamber outer wall 23 of dry distilling room 4 and lower dry distilling room 5，The two side of described material connecting leg 13 is vertically connected at upper dry distilling room 4 and the cylindrical side of lower dry distilling room 5.Described material connecting leg 13 is sealedly attached to dry distilling room 4 and lower dry distilling room 5, is realizing therebetween while material transferring, it is ensured that the sealing within upper dry distilling room 4 and lower dry distilling room 5.The coal in upper dry distilling room 4 is made to be sent to lower dry distilling from its bottom cylindrical face by described material connecting leg 13 indoor, achieve the continuous transmission of material when being arranged side by side upper and lower dry distilling room, under the scope of this innovation thinking of the present utility model, when arranging multiple dry distilling room, also by each dry distilling room to shift to install up and down, and between each dry distilling room, material communicating passage can be set with bottom surface tangential manner.It is provided with cracking gas collecting chamber 10 outside described upper dry distilling room 4 and lower dry distilling room 5, described cracking gas collecting chamber 10 is along the cylindrical outer wall surface configuration of dry distilling room, and it is in the top on the face of cylinder, as shown in Figure 3, the cuboid chamber structure that described cracking gas collecting chamber 10 preferably extends along dry distilling chamber axial direction in dry distilling ceiling portion, the end face of cracking gas collecting chamber, end face and side use planar structure, and the cylindrical outer wall face of dry distilling room is as the bottom surface of cracking gas collecting chamber；Or described cracking gas collecting chamber is the annular cavity type cell structure being formed on cylindrical outer wall surface, dry distilling room, the end face of cracking gas collecting chamber, side are planar structure, the cylindrical outer wall face of dry distilling room is as the bottom surface of cracking gas collecting chamber, and the end face of cracking gas collecting chamber is the arcwall face coaxial with cylindrical outer wall face, dry distilling room.Described cracking gas collecting chamber connects with dry distilling room, the end face of cracking gas collecting chamber is sealedly connected with cracking gas collecting pipe 2, described cracking gas collecting pipe 2 protrudes upward outside heating chamber 3, and between described cracking gas collecting pipe 2 and heating chamber, form Hermetical connecting structure, thus the oil gas (tar that upper dry distilling room 4 and the coal within lower dry distilling room 5 produce after high-temperature retorting, pyrolysis gas etc.) collect via the cracking gas collecting chamber arranged on upper dry distilling room 4 and lower dry distilling room 5, and further export outside heating chamber 3 via cracking gas collecting pipe 2, realize the extraction of dry distilling oil gas.Planform and the big I thereof of described cracking gas collecting chamber determine according to oil and gas content, but said structure is optimum structure.Described cracking gas collecting pipe 2 can be provided with many along cracking gas collecting chamber as required, and as above the cracking gas collecting chamber outside dry distilling room 4 and lower dry distilling room 5 can be respectively provided with two cracking gas collecting pipes.Described cracking gas collecting chamber is integrally formed on dry distilling room, ensure that and be connected with the high sealing between dry distilling room, having stopped the probability that cracking gas leaks in heating chamber, cracking gas collecting chamber ensure that in being in heating chamber together with dry distilling room that the oil gas that dry distilling produces can be derived the most smoothly simultaneously.

It is provided with helix transporting device 9 in described upper dry distilling room 4 and lower dry distilling room 5, realizes the movement in retort process of the upper and lower dry distilling indoor raw coal material by described helix transporting device 9.Described helix transporting device 9 includes rotary shaft 18 and the helical blade 19 being fixedly installed in rotary shaft 18, described helical blade 19 forms helical duct along the length of described rotary shaft, and preferred described helical blade can use entity spiral face, belt type spiral face, blade screw face or profile of tooth helicoid structure.Described helix transporting device 9 is at upper and lower dry distilling indoor location and makes to leave between the outward flange of helical blade 19 and the inwall of dry distilling room the gap of 2-5 millimeter, this gap be applicant time spiral pusher mechanism is applied to pyrolysis of coal field through long-term Test Summary out can either ensure that the coal charge realizing dry distilling room stably advances, is prevented from again the innovation gap size that helical blade is stuck.Described helical blade 19 is only arranged in described rotary shaft 18 in described dry distilling chamber interior, and the two ends of described rotary shaft 18 stretch out in outside described dry distilling room.It is outdoor that the front end of concrete described rotary shaft 18 stretches out in dry distilling, but within being in heating chamber, the front end of rotary shaft 18 supports on seat 7 at front, the dry distilling room rolling support of heating chamber in fore bearing, and described fore bearing supports seat 7 and is arranged in heating chamber.The rear end of described rotary shaft 18 stretches out in outside described dry distilling room and heating chamber, and supports on seat 8 at heating chamber rear rolling support in rear bearing, and described rear bearing supports seat 8 and is in outside heating chamber.The two ends of the most each rotary shaft are respectively supported at fore bearing and support on seat 7 and rear bearing support seat 8, it is ensured that the bearings of rotation.nullRotational sealing structure is formed between two ends before and after described rotary shaft 18 and dry distilling room，Between front-end port and the rotary shaft therebetween through of concrete upper dry distilling room 4, rotational sealing structure is set，Preferably employing sealing property preferable refractory seals mechanism，Dry distilling seal request is reached between dry distilling room and heating chamber in guarantee，The rear port of upper dry distilling room is sealingly fastened in the rear end face of heating chamber，And between back-end ports and the rotary shaft therebetween through of upper dry distilling room, rotational sealing structure is set，In guarantee, dry distilling room and the external world reach dry distilling seal request，Between front-end port and the rotary shaft therebetween through of the most described lower dry distilling room 5, rotational sealing structure is set，Preferably employing sealing property preferable refractory seals mechanism，Dry distilling seal request is reached between dry distilling room and heating chamber under ensureing，The rear port of lower dry distilling room is sealingly fastened in the rear end face of heating chamber，And between back-end ports and the rotary shaft therebetween through of lower dry distilling room, rotational sealing structure is set，Ensure that lower dry distilling room reaches dry distilling seal request with the external world.Described rotational sealing structure ensure rotary shaft can freely rotatable while dry distilling chamber interior formed meet the high leakproofness that dry distilling requires, preferred described rotational sealing structure can use resistant to elevated temperatures sealing brush or other refractory seals mechanisms, this rotary seal mechanism has been widely used in this area, is again not described.The rear end of described rotary shaft 18 is connected to driving means 11, preferably rotary shaft rear end is in transmission connection in the output revolving shaft of driving means 11 by feed belt, thus drive rotary shaft in the rotation of dry distilling indoor by driving means 11, and then the helical blade in drive rotary shaft rotates, the coal charge that the rotation of helical blade then promotes dry distilling indoor advances along spiral path.The indoor rotary shaft of the upper dry distilling room being arranged side by side in this utility model and lower dry distilling can individually or Synchronization Control, and in rotary shaft, the hand of spiral of helical blade can in the same direction or oppositely arranged.When the hand of spiral of the helical blade in the rotary shaft of upper and lower dry distilling indoor is identical, in control, the rotation direction of the rotary shaft that the rotation direction of the rotary shaft that dry distilling is indoor is indoor with lower dry distilling is contrary, when the hand of spiral of the helical blade in the rotary shaft of upper and lower dry distilling indoor is contrary, control the indoor rotary shaft of upper and lower dry distilling and synchronize rotating in same direction, to ensure that coal charge enters behind upper dry distilling indoor from the feeding warehouse of upper dry distilling room front top, it is advanced into the rear end of dry distilling room backward along spiral path under the rotary action of its rotary shaft, then lower dry distilling room is entered by material connecting leg 13, the front end to lower dry distilling room is pushed ahead along spiral path again under the rotary action of lower dry distilling indoor rotary shaft, and the discharging bin discharge from front end, lower dry distilling room, achieve the steady conveying of material.

The dry distilling room that described heating chamber 3 is internal by the way of fuel combustion carries out external heat, the bottom surface of preferred described heating chamber is to being externally connected with fuel supply pipe 17, described fuel supply pipe 17 is further connected to fuel Supply House 16 outside heating chamber, described fuel Supply House 16 provides fuel by described fuel supply pipe 17 in described heating chamber, in described heating chamber 3, the position connecting fuel supply pipe 17 is provided with lighter 12, so from fuel Supply House 16 fuel in the entrance heating chamber of fuel supply pipe 17 time, burn in heating chamber under the ignition action of lighter, thus provide thermal source for dry distilling room.Raw coke oven gas and oxygen are provided to heating chamber by preferably fuel Supply House 16, in heating chamber, after mixing, through igniting, heat transfer space between adiabatic wall 14 and dry distilling chamber outer wall burns for both, described raw coke oven gas can derive from the gaseous product after empyreumatic oil gas disposal, the heat smoke utilizing burning to produce provides heat for dry distilling room, it is achieved resource circulation utilization.Can connect in bottom of heating chamber many places as required and fuel supply pipe 17 set-point firearm are set.nullIn the rotary shaft 18 of the helix transporting device indoor in upper dry distilling room and lower dry distilling that this utility model is pioneering, discharge flue 15 is set，The hollow channel that preferably central axis along each rotary shaft is penetrating before and after being formed is as discharge flue 15，Simultaneously because the front end of described each rotary shaft supports on seat 7 in fore bearing in heating chamber inner support，The rear end of each rotary shaft supports on seat 8 in rear bearing in heating chamber outer support，The front opening of the discharge flue in the most each rotary shaft is communicated in heating chamber，The open rearward end of the discharge flue in each rotary shaft is communicated in the ambient air outside heating chamber，Thus warp is expelled in the air outside heating chamber by heating chamber by the discharge flue of two rotary shafts after dry distilling chamber outer wall is heated in heating chamber by combustion product gases，And rotary shaft can be heated when combustion product gases flows through the discharge flue of rotary shaft，And conduct heat to along the coal charge of rotary shaft periphery screw propulsion through rotary shaft，Be equivalent to again carry out dry distilling heating in dry distilling chamber interior，Thus improve the efficiency of heating surface.So by this setup of the present utility model, heat smoke in heating chamber flows through the inside of two rotary shafts in heating chamber after heat cycles, and discharge outside heating chamber through the end of two rotary shafts, while realizing flue gas smooth discharge, the rotary shaft of dry distilling chamber interior is heated, make to be positioned at the indoor coal charge of dry distilling when advancing along helical orbit, simultaneously by the conduction heating on the rotary shaft surface inside the conduction heating of the dry distilling chamber outer wall outside helical orbit and helical orbit, not only increase the external-heat dry distilling efficiency of heating surface, and improve the heating uniformity advancing coal charge, and then substantially increase dry distillation efficiency.

Further for prevent complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model under negative pressure or positive pressure operation on raw coke oven gas in dry distilling room 4 and lower dry distilling room 5 from charging aperture, discharging opening leakage and up and down dry distilling room enter the danger of oxygen (air), can be further preferred as shown in accompanying drawing 6 and accompanying drawing 7, the feeding warehouse 1 that upper dry distilling room connects connects many barrels series connection feeding magazine 24, the discharging bin 6 that lower dry distilling room connects connects many barrels series connection blanking magazine 25, it is achieved continuous feed and discharging.It is concrete when needs feed, open the top feed bin inlet valve of many barrels series connection feeding magazine 24, close feed bin isolating valve in the middle part of it, the bottom feed bin of the most barrels series connection feeding magazine 24 and the isolation of top feed bin, can ensure that bottom feed bin is on request to feeding warehouse 1 feed while the feed bin feeding of top, after top feed bin feed supplement puts in place, close top feed bin inlet valve, open middle part feed bin isolating valve, feed bin is connected as a single entity up and down, top bunker raw material enters bottom feed bin under gravity, and at this moment bottom feed bin remains to continue on request to feeding warehouse 1 feed.Contrary maneuver is used when in like manner descending discharging bin 6 discharging that dry distilling room connects, the raw coke oven gas that ensure that on during input and output material in dry distilling room 4 and lower dry distilling room 5 will not leak from charging aperture and discharging opening, oxygen also will not be entered to upper and lower dry distilling indoor by charging aperture and discharging opening simultaneously, further increases equipment safety in operation.

nullThe process using complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model to carry out fine coal dry distilling is: raw coke oven gas、The fuel such as oxygen provide to heating chamber and ignition，The raw material fine coal feeding warehouse through front end, upper dry distilling room provides supreme dry distilling indoor，And under the impetus of upper dry distilling indoor helix transporting device, flow to the rear end of dry distilling room from right to left，Then lower dry distilling room is entered by material connecting leg，And under the impetus of lower dry distilling indoor helix transporting device, again flow to the front end of lower dry distilling room from left to right，Fine coal is during upper and lower dry distilling indoor are movable along helical orbit，The conduction heating on the rotary shaft surface inside the uniform conduction heating by the dry distilling chamber outer wall outside helical orbit and helical orbit，And carry out carbonization decomposition reaction，The gaseous material produced is collected through cracking gas collecting chamber，And outwards carried by cracking gas collecting pipe，The solid-state slag charge the produced discharging bin through front end, lower dry distilling room is discharged，Complete powder coal carbonization.

Complete built-in spiral pusher external-heat dry distillation of coal device described in the utility model be applicant through long-term innovation Test Summary out can be good at the system of low temperature distillation in external-heat fine coal that is applied to, there is techniques below innovative characteristics:

Below it is only that preferred implementation of the present utility model is described; the technical solution of the utility model is not limited to this; the any known deformation that those skilled in the art are made on the basis of major technique of the present utility model is conceived broadly falls into this utility model claimed technology category, and the concrete protection domain of this utility model is as the criterion with the record of claims.

Claims

1. a complete built-in spiral pusher external-heat dry distillation of coal device, it is characterized in that, including: heating chamber (3), dry distilling room, helix transporting device (9) and driving means, described dry distilling room is arranged in described heating chamber (3), it is formed with charging aperture and discharging opening on described dry distilling room, it is indoor that described helix transporting device (9) is arranged at described dry distilling, described driving means drives described helix transporting device (9) to rotate in described dry distilling indoor, described helix transporting device (9) is provided with discharge flue (15), the gas approach of described discharge flue (15) is in described heating chamber, described heating chamber (3) is in communication with the outside by described discharge flue (15).

nullComplete built-in spiral pusher external-heat dry distillation of coal device the most according to claim 1，It is characterized in that，Also include bearing support block，The rear end face of described heating chamber is fixed in the rear end of described dry distilling room，And the junction of dry distilling room and heating chamber is formed and seals structure，The front end of described dry distilling room is in described heating chamber，Form sealing between outer wall and the inwall of heating chamber of described dry distilling room adds heat space，Described helix transporting device (9) includes rotary shaft (18) and helical blade (19)，Described helical blade (19) is arranged in described rotary shaft (18) in dry distilling chamber interior，And along rotary shaft (18) axially at dry distilling indoor formation helical duct，The two ends of described rotary shaft (18) stretch out in outside described dry distilling room，And between two ends port and the described rotary shaft of described dry distilling room, form rotational sealing structure，In described discharge flue (15) is arranged at described rotary shaft and it is isolated with described dry distilling room，The two ends of described rotary shaft (18) are supported on described bearing support block，Described driving means is in transmission connection in the end of described rotary shaft.

nullComplete built-in spiral pusher external-heat dry distillation of coal device the most according to claim 2，It is characterized in that，Described bearing support block includes that fore bearing supports seat (7) and rear bearing supports seat (8)，The rear end of described rotary shaft (18) is outside the back-end ports of described dry distilling room stretches out in described heating chamber，And the rear end of described rotary shaft (18) supports on seat (8) in described rear bearing at the rear rolling support of heating chamber，Within the front end of described rotary shaft and described fore bearing support seat (7) are in described heating chamber (3)，The front end of described rotary shaft (18) rolling support in heating chamber supports on seat (7) in described fore bearing，Described driving means (11) is in transmission connection in the rear end of described rotary shaft (18)，Described discharge flue (15) is hollow channel penetrating before and after the formation of described rotary shaft central axis.

Complete built-in spiral pusher external-heat dry distillation of coal device the most according to claim 1, it is characterized in that, also include cracking gas collecting chamber (10) and cracking gas collecting pipe (2), described cracking gas collecting chamber (10) is formed in the outside wall surface of described dry distilling room, and connect with described dry distilling room, described cracking gas collecting chamber (10) is in described heating chamber (3), one end of described cracking gas collecting pipe (2) is communicated in described cracking gas collecting chamber (10), it is tightly connected outside the other end of described cracking gas collecting pipe (2) stretches out in described heating chamber (3) and with the adiabatic wall of heating chamber.

Complete built-in spiral pusher external-heat dry distillation of coal device the most according to claim 1, it is characterized in that, also include fuel Supply House (16) and fuel supply pipe (17), described fuel Supply House (16) is connected to described heating chamber (3) by described fuel supply pipe (17), and described heating chamber is provided with lighter (12) in the position connecting fuel supply pipe (17), dry distilling room is heated from the outside of dry distilling room by described heating chamber by fuel combustion, combustion product gases in described heating chamber is discharged by described discharge flue (15), and dry distilling room is heated in discharge process by combustion product gases from the inside of dry distilling room.

Complete built-in spiral pusher external-heat dry distillation of coal device the most according to claim 1, it is characterized in that, also include feeding warehouse (1) and discharging bin (6), described charging aperture (20) is offered at the top of described dry distilling room, one end of described feeding warehouse (1) is connected to described charging aperture (20), it is tightly connected outside the other end of described feeding warehouse (1) stretches out in described heating chamber (3) and with the adiabatic wall of heating chamber, described discharging opening (22) is offered in the bottom of described dry distilling room, one end of described discharging bin (6) is connected to described discharging opening (22), it is tightly connected outside the other end of described discharging bin (6) stretches out in described heating chamber (3) and with the adiabatic wall of heating chamber.

Complete built-in spiral pusher external-heat dry distillation of coal device the most according to claim 6, it is characterised in that the upper connection of described feeding warehouse (1) has many barrels series connection feeding magazine (24), the upper connection of described discharging bin (6) has many barrels series connection blanking magazine (25).

Complete built-in spiral pusher external-heat dry distillation of coal device the most according to claim 2, it is characterized in that, described helical blade (19) uses entity spiral face structure, belt type spiral face structure, gap between blade screw face structure or profile of tooth helicoid structure, and the internal face of the outward flange of described helical blade (19) and described dry distilling room to be in 2-5 millimeter.

9. according to the complete built-in spiral pusher external-heat dry distillation of coal device described in any one of claim 1-8, it is characterized in that, described dry distilling room includes dry distilling room (4) and lower dry distilling room (5), described upper dry distilling room (4) and lower dry distilling room (5) are arranged side by side in described heating chamber, it is interconnected by material connecting leg (13) between described upper dry distilling room (4) and lower dry distilling room (5), it is provided with described helix transporting device (9) in upper dry distilling room (4) and lower dry distilling room (5), the cracking gas collecting chamber (10) for collecting dry distilling gaseous products it is provided with outside upper dry distilling room (4) and lower dry distilling room (5).

nullComplete built-in spiral pusher external-heat dry distillation of coal device the most according to claim 9，It is characterized in that，What described upper dry distilling room (4) and lower dry distilling room (5) were parallel to each other in described heating chamber is arranged side by side，And upper dry distilling room (4) relative to lower dry distilling room (5) closer to the end face of heating chamber，Described upper dry distilling room (4) and lower dry distilling room (5) are respectively provided with cylinder-like structure，The cylinder side wall top of described upper dry distilling room (4) front end upwards offers charging aperture，Discharging opening is offered downwards bottom the cylinder side wall of described lower dry distilling room (4) front end，Connected entrance is offered on the cylinder side wall of described upper dry distilling room (4) and lower dry distilling room (5) rear end，Before and after described material connecting leg (13), port is connected to dry distilling room (4) and the connected entrance of lower dry distilling room (5)，And the bottom surface of material connecting leg (13) is the most tangent with the cylinder bottom surface of upper dry distilling room (4) and lower dry distilling room (5)，The coal charge screw propulsion of the helix transporting device (9) in described upper dry distilling room (4) and lower dry distilling room (5) is in opposite direction.