Background technology
The energy resource structure feature of China is rich coal, gas oil-poor, few, as coal production maximum in the world and country of consumption,
In one considerably long period, the status that coal resources dominate the energy as China is unshakable.According to statistics, China is
Verifying coal reserves is 114,500,000,000 tons, and wherein middle low-order coal (brown coal, lower-grade metamorphic bituminous) accounts for again whole nation reserves
About 55.15%.Owing to low-order coal has moisture height, easy-weathering nature, is difficult to sort, should not transport for long-distance and store
Etc. feature so that its comprehensive utilization is very limited.Wherein directly combustion power generation is one of its modal Land use systems,
According to incompletely statistics, there are the brown coal of more than 90% in China for station boiler and various Industrial Boiler.Low-order coal is as thermal coal
Fuel directly burns, and not only wastes the hydrocarbon rich resource contained in coal, and efficiency is low.By low-temperature pyrolysis of coal with
Coal-char combustion, gasification decoupling, it is achieved low-order coal classification high-efficiency cleaning trans-utilization, is the Main way of present large-scale Coal Chemical Industry.
It is widely used along with modernization coal mining is polytechnic so that the ratio of lump coal declines (40% decline 10~20% by current),
Fine coal productivity raises (being risen to 80~90% by current 60%).There is easy airborne dust, inflammable, explosive in fine coal, comprehensive utilization
The problems such as difficulty is big, pyrolysis of coal technology is considered as the maximally efficient approach of coal high-efficiency clean utilization.
The most conventional pyrolysis of coal technology has Toscoal hot solid carrier devolatilization technique, Germany's Lurgi-Spuelgas low temperature pyrogenation
Technique, god mansion SH type internal thermal upright carbonization furnace technique etc., but all there is certain defect.Toscoal hot solid carrier devolatilization
In technique, Ceramic Balls is in cyclic process, during there is mechanical wear, and airlift conveying Ceramic Balls, to pipeline
Having a certain degree of abrasion with equipment inner wall, pyrolysis reactor uses rotary kiln, and the oil gas time of staying that pyrolysis produces is long, oil
Gas secondary response is violent, and tar quality declines, and after pyrolysis, semicoke and Ceramic Balls are completely separated difficulty.Germany Lurgi-Spuelgas
Low temperature pyrogenation technique and god mansion SH type internal thermal upright carbonization furnace technique are suitable for processing lump coal, are not suitable for pulverized coal pyrolysis, adopt
With gas heat carrier, the pyrolysis petroleum resources produced after pyrolysis is diluted by gas heat carrier, and calorific value is low, and pyrolysis petroleum resources is cold
Solidifying amount is big, and lump coal volume is big, and heat transfer coefficient is low, and heat transfer efficiency is the highest, and pyrolysis time is long, and oil gas secondary response is violent, burnt
Oil quality is the highest, and equipment is huge, is difficult to operation.
Thus, current pyrolytic process of coal still haves much room for improvement.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.To this end, this practicality is new
One purpose of type is that proposing one is suitable to process fine coal, is not required to use gas heat carrier, pyrolysis petroleum resources quickly to derive,
The little quality of tar secondary reaction is high, and it is high that pyrolysis gas is not diluted calorific value, can effectively reduce pyrolysis oil gas dustiness or
Pyrolysis reactor can be reduced to being pyrolyzed the pyrolysis reactor of the lagging facility of pipeline between oil gas rapid condensation device.
This utility model provides a kind of pyrolysis reactor, and according to embodiment of the present utility model, this pyrolysis reactor includes:
Pyrolysis material entrance;
Gas mixture exports;
Semicoke exports;
Wherein, described pyrolysis material entrance and gas mixture outlet are arranged at the top of described pyrolysis reactor;Described semicoke goes out
Mouth is arranged at the bottom of described pyrolysis reactor;
It is provided with many oil gas in described pyrolysis reactor and derives pipeline, gas gathering manifold, many gas-collecting branch pipes, heat accumulating type radiation
Pipe and cyclone separator,
Wherein, described gas gathering manifold is arranged on the central shaft of described pyrolysis reactor,
One end of described gas-collecting branch pipe is connected with described gas gathering manifold, and the other end is communicated to described oil gas and derives pipeline;
Described cyclone separator has gas-solid mixture entrance, gas outlet and a solid outlet, wherein, described gas outlet with
The outlet of described gas mixture is connected, and the end of described gas gathering manifold extends the gas-solid mixing being communicated to described cyclone separator
Thing entrance;
Described heat accumulation type radiant tube is along the short transverse multi-tier arrangement of described pyrolysis reactor, and every layer has many in level side
Heat accumulation type radiant tube the most parallel to each other.
Cyclone separator is arranged at inside reactor by the pyrolysis reactor according to this utility model embodiment, can not only be effective
Reducing the dustiness of the pyrolysis of coal gas mixture discharging pyrolysis reactor, the pyrolysis oil gas of pyrolysis reactor is discharged in effectively suppression
Mix dust condensation blocking subsequent pipeline and relevant device;Meanwhile, in the built-in pyrolysis reactor of cyclone separator, it is also possible to subtract
Few pyrolysis reactor, to the lagging facility of pipeline between pyrolysis oil gas mixture rapid condensation device, reduces the thermal insulation area of equipment
With reduction system heat tracing energy consumption;It addition, gas mixture is quickly derived pyrolysis instead by oil gas delivery line by this pyrolysis reactor
Answer device, can effectively suppress oil gas second pyrolysis, improve pyrolysis oil yield, and by using heat accumulation type radiant tube heating technique,
Without gas, solid heat carrier heating, such that it is able to improve the thermal efficiency of reactor, it addition, use the above-mentioned enforcement of this utility model
The pyrolysis reactor of example is without complicated machinery, and inside reactor each point temperature is the most adjustable, has the features such as technological process is simple,
It is easy to large-scale industrial production.
Alternatively, described gas-collecting branch pipe is arranged parallel to each other along the length direction of described gas gathering manifold.Thus, be conducive to improving
The derivation efficiency of gas mixture.
Alternatively, described gas-collecting branch pipe is perpendicular to described gas collecting main pipe.
Alternatively, described oil gas derives pipeline along the short transverse multi-tier arrangement of described pyrolysis reactor, every layer have many
Oil gas parallel to each other in horizontal direction derives pipeline.Thus, it is possible to the oil gas significantly improved in reactor derives efficiency.
Alternatively, described oil gas is derived pipeline and is arranged in parallel with described heat accumulation type radiant tube, and described heat accumulation type radiant tube is each
The left and right sides be symmetrically arranged with two oil gas and derive pipelines.Thus, it is possible to the oil gas improved further in reactor derives effect
Rate.
Alternatively, described oil gas derivation pipeline is that described oil gas is led with the spacing of the tube wall of neighbouring described heat accumulation type radiant tube
Go out 1/2-3 times of pipe diameter d.Thus, it is possible to the oil gas improved further in reactor derives efficiency.
Alternatively, described oil gas is derived and is provided with multiple through hole on the tube wall of pipeline.Thus, it is possible to improve reactor further
In oil gas derive efficiency.
Alternatively, the plurality of through hole is uniformly distributed on the length direction that described oil gas derives pipeline.Thus, it is possible to enter one
Step improves the oil gas in reactor derives efficiency.
Alternatively, oil gas described in same layer is derived pipeline and is communicated to same described gas-collecting branch pipe.Thus, simple in construction, just
Pyrolysis reactor is discharged in gas mixture being concentrated through cyclone separator.
Alternatively, it is welded with support bar between outer wall and the adjacent heat accumulation type radiant tube of cyclone separator, divides with fixing whirlwind
From device.Thus, it is possible to cyclone separator is firmly fixed to inside pyrolysis reactor.
Additional aspect of the present utility model and advantage will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by practice of the present utility model.
Detailed description of the invention
Embodiment of the present utility model is described below in detail.The embodiments described below is exemplary, is only used for explaining this reality
With novel, and it is not intended that to restriction of the present utility model.Unreceipted concrete technology or condition in embodiment, according to this
The technology described by document or condition in field or carry out according to product description.Agents useful for same or the unreceipted production of instrument
Manufacturer person, be can by city available from conventional products.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width
Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ",
Orientation or the position relationship of the instruction such as " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferential " are based on accompanying drawing
Shown orientation or position relationship, be for only for ease of description this utility model and simplify description rather than instruction or hint institute
The device that refers to or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this reality
With novel restriction.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing "
Should be interpreted broadly Deng term, connect for example, it may be fixing, it is also possible to be to removably connect, or integral;Can be
It is mechanically connected, it is also possible to be electrical connection;Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of individual element internal or the interaction relationship of two elements, unless otherwise clear and definite restriction.Common for this area
For technical staff, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be
First and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of
One characteristic level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be first special
Levy immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
This utility model provides a kind of pyrolysis reactor.Pyrolytic reaction below with reference to-3 pairs of this utility model embodiments of Fig. 1
Device 400 is described in detail.According to embodiment of the present utility model, this pyrolysis reactor 400 includes: pyrolysis material entrance 410,
Gas mixture outlet 420, is provided with many oil gas in semicoke outlet 430, and described pyrolysis reactor 400 and derives pipeline
440, gas gathering manifold 451, many gas-collecting branch pipes 452, heat accumulation type radiant tube 460 and cyclone separator 470.
According to specific embodiment of the utility model, pyrolysis material entrance 410 is arranged at the top of pyrolysis reactor 400, is suitable to
By in pyrolysis material supply to reactor.
According to specific embodiment of the utility model, gas mixture outlet 420 is arranged at the top of pyrolysis reactor 400,
And and pyrolysis material entrance 410 interval setting, the gas mixture being suitable to obtain pyrolysis discharges pyrolysis reactor 400.
According to specific embodiment of the utility model, semicoke outlet 430 is arranged at the bottom of pyrolysis reactor 400, and is suitable to
Pyrogenous origin semicoke is discharged pyrolysis reactor 400.
According to specific embodiment of the utility model, heat accumulation type radiant tube 460 in the inside of pyrolysis reactor 400 along pyrolysis
The short transverse multi-tier arrangement of reactor, every layer has many heat accumulation type radiant tubes the most parallel to each other.According to
Specific embodiment of the utility model, every layer of heat accumulation type radiant tube includes multiple parallel and equally distributed heat accumulation type radiant tube
And each heat accumulation type radiant tube is parallel with each heat accumulation type radiant tube in adjacent upper and lower two-layer heat accumulation type radiant tube.According to this
The concrete example of utility model, heat accumulation type radiant tube can be the circle of DN200~300mm or semicircle radial canal.Thus,
The pyrolysis efficiency of pyrolysis material can be significantly improved, and then improve pyrolysis oil yield.
According to specific embodiment of the utility model, adjacent heat accumulation type radiant tube left and right center distance can be 300~500mm,
Adjacent heat accumulation type radiant tube vertical centre spacing can be 400~800mm.It is to be understood that adjacent heat accumulation type radiant tube is left
Right center distance can be understood as on same layer in heat accumulation type radiant tube distance in the heart, and during adjacent heat accumulation type radiant tube is vertical
Distance in the heart in the adjacent heat accumulation type radiant tube that can be understood as adjacent upper and lower two interlayers in the heart.
According to specific embodiment of the utility model, the number of plies of multilamellar heat accumulation type radiant tube can be 10-30 layer.Invention Crinis Carbonisatus
Existing, this kind of structure is arranged so that reactor temperature field distribution is uniform, such that it is able to significantly improve the pyrolysis efficiency of material,
And then improve the yield of pyrolysis oil.
According to specific embodiment of the utility model, heat accumulation type radiant tube can be unidirectional, gas heat-accumulated type radial canal, the most logical
Cross the heat that combustion gas produces by heat accumulation type radiant tube body and carry out heat supply in the way of radiation.According to tool of the present utility model
Body embodiment, heat accumulation type radiant tube can be provided with gas control valve (not shown).Thus, it is possible to fired by adjustment
The flow of the combustion gas that controlled atmosphere joint valve regulation is passed through heat accumulation type radiant tube realizes the accurate temperature controlling to pyrolytic process, such that it is able to aobvious
Write the pyrolysis efficiency improving material, and then improve the yield of pyrolysis oil.
Concrete, the flow etc. that can be passed through the combustion gas of heat accumulation type radiant tube by adjustment realizes the accurate temperature controlling to pyrolytic process,
And heat accumulation type radiant tube uses the combustion system of periodically commutation so that the temperature field of single heat accumulation type radiant tube be more or less the same in
30 DEG C, and the every independent temperature control of heat accumulation type radiant tube, thus ensure the uniformity of reactor temperature field, such as by adjusting
The flow of the combustion gas being passed through heat accumulation type radiant tube makes pyrolysis reactor be divided into three districts, i.e. drying and dehydrating district, heat from top to bottom
Solve reaction zone, semicoke maturation zone, can be by the temperature range in the control realization drying and dehydrating district of heat accumulation type radiant tube be existed
680-730 degree Celsius, it is possible to quickly slough the moisture contained by pyrolysis material, drying and dehydrating district temperature is slightly higher simultaneously, can subtract
Few drying and dehydrating section length.Pyrolysis reaction region temperature range can control at 500-650 degree Celsius, to ensure the abundant of material
Pyrolysis, semicoke maturation zone temperature can control at 500-600 degree Celsius, thus a heating part is pyrolyzed the most completely further
Material.
According to specific embodiment of the utility model, gas gathering manifold 451 is arranged on the central shaft of described pyrolysis reactor 400,
One end of gas-collecting branch pipe 452 is connected with described gas gathering manifold 451, and the other end is communicated to described oil gas and derives pipeline 440.
The concrete set-up mode of gas-collecting branch pipe 452 is not particularly limited, such as, include but not limited to the length side along gas gathering manifold 451
It is arranged in parallel to each other.According to embodiment of the present utility model, can have between gas-collecting branch pipe 452 and gas gathering manifold 451
Certain angle, in some concrete examples, gas-collecting branch pipe 452 is perpendicular to gas collecting main pipe 451 and arranges.Thus, beneficially oil gas
The quick derivation of mixture.
According to specific embodiment of the utility model, oil gas is derived pipeline 440 and is connected with one end of gas-collecting branch pipe 452, and
And it is provided with through hole on the tube wall of oil gas delivery line.Thus, by arranging oil gas derivation pipeline so that pyrolytic process produces
Pyrolysis oil gas quickly derive, thus effectively suppression oil gas second pyrolysis, improve pyrolysis oil yield.According to of the present utility model
Embodiment, the quantity of through hole is not particularly limited, and in some concrete examples, oil gas is derived and arranged on the tube wall of pipeline 440
There is multiple through hole, it is preferable that the plurality of through hole is derived at oil gas and is uniformly distributed on the length direction of pipeline 440.Thus, have
It is beneficial to gas mixture quickly derive.
According to specific embodiment of the utility model, oil gas derives the pipeline 440 short transverse multilamellar along pyrolysis reactor 400
Arranging, every layer has many oil gas the most parallel to each other and derives pipeline.
According to specific embodiment of the utility model, oil gas is derived pipeline 440 and is arranged in parallel with heat accumulation type radiant tube 460, and
The left and right sides of heat accumulation type radiant tube 460 is symmetrically arranged with two oil gas and derives pipeline 440.Inventor finds, by often
Root heat accumulation type radiant tube both sides are installed oil gas and are derived pipeline, and the gas mixture that pyrolysis produces is derived rapidly by deriving pipeline,
Thus restrained effectively the second pyrolysis of oil gas, and then improve the yield of pyrolysis oil, good in economic efficiency.
According to specific embodiment of the utility model, radiate as in figure 2 it is shown, oil gas derives pipeline 440 with neighbouring heat accumulating type
Spacing L of the tube wall of pipe 460 is 1/2-3 times that oil gas derives pipe diameter d.Thus can derive the heat of generation at once
Solve gas mixture, it is to avoid pyrolysis oil cracks, improve pyrolysis oil productivity.
According to specific embodiment of the utility model, same layer oil gas is derived pipeline 440 and is communicated to same gas-collecting branch pipe 452.
Thereby, it is possible to gas mixture is concentrated, is derived rapidly.
According to specific embodiment of the utility model, cyclone separator 470 has gas-solid mixture entrance 471, gas outlet
473 and solid outlet 472, wherein, gas outlet 473 is connected with gas mixture outlet 420, gas gathering manifold 451
End extends the gas-solid mixture entrance 471 being communicated to this cyclone separator.Inventor finds, by pyrolysis reactor
Portion arranges cyclone separator, and thermal decomposition product is carried out gas solid separation process, it is possible to effectively reduce the oil gas discharging pyrolysis reactor
The dustiness of mixture, effectively suppresses the pyrolysis oil gas pyrolysis reactor to mix dust condensation blocking subsequent pipeline and sets with relevant
Standby;Meanwhile, in the built-in pyrolysis reactor of cyclone separator, pyrolysis reactor can be reduced between gas mixture condensing unit
The lagging facility of pipeline, reduces the thermal insulation area of equipment and reduces system heat tracing energy consumption.
According to specific embodiment of the utility model, the outer wall of cyclone separator 470 and the heat accumulation type radiant tube 460 being adjacent
Between be welded with support bar 490, it is possible to be firmly fixed to inside pyrolysis reactor this cyclone separator.Generally,
Cyclone separator 470 is arranged at the top of pyrolysis reactor 400, therefore, it can at cyclone separator 470 outer wall and first
Layer accumulation of heat is welding support bar 490 between radial canal.
According to specific embodiment of the utility model, the height of pyrolysis reactor 400 and width are preferably suitable, and width can be 2-6
Rice, highly can control by controlling the quantity and spacing of every layer of heat accumulation type radiant tube, and the height of usual pyrolysis reactor is permissible
It is 5~20m.Thus, it is possible to realize the pyrolysis completely to material.
According to embodiment of the present utility model, with reference to Fig. 3, pyrolysis reactor 400 can further include: feed bin 481,
Feeding screw 482 and cold slag spiral discharging device 483.
According to embodiment of the present utility model, feeding screw 482 is connected with feed bin 481 and pyrolysis material entrance 410 respectively,
And the pyrolysis material being suitable to will be stored in feed bin carries out pyrolytic reaction through pyrolysis material entrance supply to pyrolysis reactor.
According to embodiment of the present utility model, cold slag spiral discharging device 483 is arranged on the lower section of pyrolysis reactor and goes out with semicoke
Mouth 430 is connected, and is suitable to be pyrolyzed the semicoke produced and discharges pyrolysis reactor.
Referring to Fig. 3, the pyrolysis reactor according to this utility model embodiment under duty is described in detail, tool
Body is as follows:
Feed bin 481 stores the pulverized coal pyrolysis material needing to be pyrolyzed, under the progradation of feeding screw 482, feed bin in advance
Pyrolysis material in 481 is supplied in pyrolysis reactor 400 by pyrolysis material entrance 410, and heat accumulation type radiant tube is heat simultaneously
Solving the temperature field that reactor provides suitable, inside pyrolysis reactor, pyrolysis material from top to bottom moves, and sequentially passes through dry de-
Pool, pyrolysis reaction region and semicoke maturation zone, pyrolysis material is through pyrolytic reaction generation gas mixture and semicoke, wherein,
Gas mixture is derived the through hole of pipeline 440 by oil gas and is rapidly entered oil gas and derive pipeline, and sequentially enters and communicate therewith
Gas-collecting branch pipe 452, gas gathering manifold 451, then enter cyclone separator 470 by gas-solid mixture entrance 471, and gas-solid divides
The solid obtained after from enters pyrolysis reactor, at cold slag spiral discharging device 483 together with semicoke by solid outlet 472
Through semicoke outlet 430 discharge pyrolysis reactor under effect, the gas of isolated is successively through gas outlet 473 and air-fuel mixture
Thing outlet 420 discharge pyrolysis reactor, enters subsequent treatment operation.
Below with reference to specific embodiment, this utility model is described, it should be noted that these embodiments are only
It is illustrative, and limits this utility model never in any form.
Embodiment
Utilizing pyrolysis reactor of the present utility model that fine coal carries out pyrolysis processing, pyrolysis material and pyrolysis reactor parameters are such as
Under:
The Industrial Analysis of Yulin brown coal: Mad%, 6.75%, Vad%, 31.59%, Aad%, 5.41%, Fcad%, 56.25%,
Coal crushes particle diameter 1~3mm.
Technological parameter: pyrolysis reactor upper temp 580 DEG C, middle portion temperature 605 DEG C, temperature of lower 594 DEG C, air-fuel mixture
Thing outlet temperature 583 DEG C, cyclone separator gas outlet temperature 565 DEG C, pyrolysis reactor internal pressure 4.73Kpa, pyrolysis
Gas mixture exports thin dirt removal efficiency 95%, exports dustiness 85mg/Kg.Pyrolysis oven uses the circle of DN250, spoke
Penetrating pipe left and right center distance 300mm, vertical centre spacing is 450mm, and the radial canal number of plies is advisable at about 20 layers, reaction
Device width is 4.5m, and height is 15m.
Pyrolysis tertiary industry distribution: tar 17.4%, pyrolysis gas 12.8%, semicoke 69.8%.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " concrete example ",
Or specific features, structure, material or the feature bag that the description of " some examples " etc. means to combine this embodiment or example describes
It is contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be
Any one or multiple embodiment or example combine in an appropriate manner.Additionally, in the case of the most conflicting, this area
Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out
In conjunction with and combination.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as restriction of the present utility model, those of ordinary skill in the art can in the range of this utility model
Above-described embodiment be changed, revise, to replace and modification.