CN205974381U - Built -in grain bed and tubular filter's fine coal pyrolysis dust pelletizing system - Google Patents
Built -in grain bed and tubular filter's fine coal pyrolysis dust pelletizing system Download PDFInfo
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- CN205974381U CN205974381U CN201620618358.5U CN201620618358U CN205974381U CN 205974381 U CN205974381 U CN 205974381U CN 201620618358 U CN201620618358 U CN 201620618358U CN 205974381 U CN205974381 U CN 205974381U
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Abstract
The utility model belongs to coal divides matter cascade utilization the field, mainly relates to the dust pelletizing system among the coal pyrolysis process that turns to powder. The utility model discloses not enough to prior art designs and has developed a built -in grain bed and tubular filter's fine coal pyrolysis dust pelletizing system, the utility model discloses the characteristics of binding reaction ware itself adopt built -in grain bed to carry out tentatively dust removal to pyrolysis gas and handle, and the pyrolysis gas after the grain bed tentatively removes dust gets into tubular filter and carries out the secondary dust removal to utilize the pyrolysis semicoke easily to regenerate as filtering material, the filter media of use, low -cost, the efficient dust removal difficult problem of solving fine coal pyrolysis gas of so as to.
Description
Technical field
This utility model belongs to coal sub-prime cascade utilization field, relates generally to the dedusting system during a kind of pulverized coal pyrolysis
System.
Background technology
Low-order coal sub-prime cascade utilization is the key areas of China 13 Coal Chemical Industry, substantial amounts of low especially for China
Rank fine coal, how effectively utilizes become the emphasis of research.Take pyrolytic technique that low order kerosene oil-gas is taken out, remaining semicoke is again
Go to generate electricity or as gasified raw material, with Coal Gasification Technology contrast, invest little, water consume is low, be that the Coal Clean that China advocates is efficient
Using Technology Ways.But during pulverized coal pyrolysis, pyrolysis gas carry substantial amounts of dust granules, during pulverized coal pyrolysis, it is pyrolyzed powder
Burnt and pyrolysis oil gas high temperature ON-LINE SEPARATION is one of main difficult technical that this technique runs into.Fine coal in, low temperature pyrogenation mistake
The dust-laden pyrolysis gas temperature producing in journey is high, easy phase transformation.Pyrolysis coke breeze and pyrolysis oil-gas high-temperature ON-LINE SEPARATION effect are undesirable,
The solid content ultimately resulting in coal tar is higher, and oil quality is poor it is impossible to the quality meeting the further deep processing of coal tar refers to
Mark.At present, the pyrolytic technique of fine coal mainly has granule dedusting filter and pyrolysis gas dust arrester etc..However, through pyrolysis skill
Oil-gas component is extremely complex for the pulverized coal pyrolysis coke breeze that art obtains and pyrolysis, the solid content in coal tar is higher, oil quality is poor
The shortcomings of make its be difficult to direct using and storage it is difficult to industrial applications.The dedusting of dust-laden pyrolysis gas during pulverized coal pyrolysis
Technology and the developmental research of key equipment, have become as low temperature pyrogenation field urgently one of problem leaved for development in coal.
Utility model content
This utility model is directed to the deficiencies in the prior art, designs and develop a kind of built-in grain bed and tubular filter
Pulverized coal pyrolysis dust pelletizing system, this utility model binding reactor feature of itself, pyrolysis gas are carried out just using built-in grain bed
Step dust removal process, the pyrolysis gas after grain bed rough dusting enter tubular filter and carry out final dusting, and using pyrolysis half
Jiaozhuo is filter material, and the filter material easily regeneration of use is such that it is able to the dedusting of inexpensive, efficient solution pulverized coal pyrolysis gas is difficult
Topic.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is：
This utility model provides a kind of pulverized coal pyrolysis dust pelletizing system, including：Pyrolysis reactor, grain bed and tubular filter
Device, described grain bed is arranged in described pyrolysis reactor, positioned at described pyrolysis reactor bottom and be fixedly connected on described heat
On the side wall of solution reactor, and it is arranged on the front end of the pyrolysis gas outlet of described pyrolysis reactor；Wherein：
Described grain bed includes loading head, inlet end, outlet side and grain bed outlet, and described loading head is obliquely installed in institute
State the top of grain bed, the upper end of described loading head is connected with the side wall of described pyrolysis reactor, the lower end of described loading head with
Described outlet side connects, and the semicoke granule for described pyrolysis reactor is produced collects in the described grain bed of inflow；Described enter
Gas end is air inlet grid plate structure, and described air inlet grid plate structure includes air inlet grid plate and multiple first deflection plate, described first baffling
One end of plate is connected with described air inlet grid plate, and the other end extends as free end along lower right direction, adjacent described first folding
Stream plate free end between interval formed described air inlet grid plate opening so that at the opening of described air inlet grid plate formed
Baffling flows toward lower right direction；Described outlet side is to give vent to anger grid plate structure, described grid plate structure of giving vent to anger include giving vent to anger screen and
Multiple second deflection plates, one end of described second deflection plate is connected with described screen of giving vent to anger, and the other end extends along lower left direction
As free end, the interval between the adjacent free end of described second deflection plate formed described in give vent to anger screen opening so that
The baffling being formed at the opening of described screen of giving vent to anger flows toward upper right side direction；
Described tubular filter is arranged on the outside of described pyrolysis reactor, the pyrolysis gas outlet with described pyrolysis reactor
Connection, it includes filter tube, heat tracing device and purging regenerating unit, and described filter tube is arranged on the inside of described tubular filter,
Pyrolysis gas for discharging to described grain bed carry out further dust removal process；Enclose described filter tube outside described heat tracing device, use
In the described filter tube of heating；Described purging regenerating unit is arranged on the top of described tubular filter, described purging regenerating unit
Connect with described filter tube and described heat tracing device respectively.
According to embodiment of the present utility model, described first deflection plate is 15-60 degree with the angle of vertical curve, described second
Deflection plate is 15-60 degree with the angle of vertical curve.
According to embodiment of the present utility model, described grain bed is plate armature, and described loading head is collection flitch；Described
Grain bed outlet is arranged on the bottom of described grain bed, and is inserted into the discharging half of the discharge system of described pyrolysis gas reactor
Jiao Zhong, and, control the translational speed of semicoke granule in described grain bed by described pyrolysis reactor load.
According to embodiment of the present utility model, described tubular filter also includes discharge and oil-gas recovery system, described
Discharge is connected with described filter tube, for collecting the net pyrolysis gas in described filter tube, described oil-gas recovery system with described
Discharge connects, for reclaiming tar.
According to embodiment of the present utility model, described purging regenerating unit includes purging hot-air heater and heat accumulating type radiation
Pipe, described purging hot-air heater connects with described filter tube with described heat tracing device, respectively for providing high-temperature gas.
According to embodiment of the present utility model, described filter tube is in multilamellar perpendicular to the short transverse of described tubular filter
Distribution, every layer has the many described filter tubes being arranged in a vertical direction it is preferred that the wall thickness of described filter tube is less than 5mm, with
When porosity be more than 30% it is preferred that described filter tube can take microporous ceramic filter or metal sintering filter tube；And,
Described filter tube is provided with purging air valve, and the purge gass for controlling described purging regenerating unit to produce enter described filter tube,
Preferably, when described tubular filter inlet and outlet pressure difference exceedes setting value, described purging air valve may turn on so that institute
State the purge gass described filter tube of entrance that purging regenerating unit produces.
According to embodiment of the present utility model, pyrolysis gas are through described air inlet grid plate structure and described grid plate structure of giving vent to anger
Flow velocity is 0.05-0.5m/s, and the spacing of described inlet end and described outlet side is 50-300mm.
According to embodiment of the present utility model, described pyrolysis reactor includes：Charging aperture, pyrolysis gas outlet, discharging opening and
Heat accumulation type radiant tube, described charging aperture is arranged on the roof of described pyrolysis reactor, and described pyrolysis gas outlet is arranged on described
On the side wall of pyrolysis chamber, along the short transverse multi-tier arrangement of described reactor, every layer has many edges to described heat accumulation type radiant tube
The described heat accumulation type radiant tube of horizontal direction arrangement.
The beneficial effects of the utility model are：
（1）The pulverized coal pyrolysis dust pelletizing system that this utility model provides has resistant to elevated temperatures advantage, can be at 500～600 DEG C
High temperature under normal work；
（2）The pulverized coal pyrolysis dust pelletizing system that this utility model provides has good heat insulation effect and corrosion resistance, can
In prevention pyrolysis gas, condensable gases lead to it to be attached on cleaner because temperature change generates tar containing dust effectively,
Thus, it is possible to it is aging or even make it ineffective to be effectively prevented from acceleration equipment under the high temperature conditions；
（3）Pyrolysis gas in the pulverized coal pyrolysis dust pelletizing system that this utility model provides time of staying in cleaner unit is short, energy
The dust carried secretly in enough removing pyrolysis gas within the time the shortest, effectively prevent pyrolysis gas and two secondary fissures occurs in cleaner
The side reactions such as solution are it is ensured that tar quality；
（4）The pulverized coal pyrolysis dust pelletizing system binding reactor feature of itself that this utility model provides, using built-in granule
Bed carries out rough dusting process to pyrolysis gas, and the pyrolysis gas after grain bed rough dusting enter tubular filter and carry out secondary removing
Dirt, and by the use of pyrolysis char as filter material, the filter material easily regeneration of use is such that it is able to inexpensive, efficient solution fine coal
A dedusting difficult problem for pyrolysis gas.
Brief description
Fig. 1 is the structure chart of this utility model pulverized coal pyrolysis dust pelletizing system.
Fig. 2 is the structure chart of this utility model grain bed.
Wherein, 1, charging aperture, 2, pyrolysis reactor, 3, heat accumulation type radiant tube, 4, grain bed, 41, loading head, 42, air inlet
End, 43, outlet side, 44, grain bed outlet, 45, air inlet grid plate, the 46, first deflection plate, 47, screen of giving vent to anger, the 48, second baffling
Plate, 5, pyrolysis gas outlet, 6, discharging opening, 7, tubular filter, 71, filter tube, 72, heat tracing device, 73, purging regenerating unit,
731st, purge hot-air heater, 732, heat accumulation type radiant tube, 74, discharge.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of described embodiment is shown in the drawings, wherein ad initio
To the element that same or similar label represents same or similar element or has same or like function eventually.Below by ginseng
The embodiment examining Description of Drawings is exemplary, is only used for explaining this utility model, and it is not intended that to of the present utility model
Limit.
In description of the present utility model it is to be understood that term " on ", D score, "left", "right", " interior ", " outward " etc.
The orientation indicating or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of description this utility model
Describe with simplifying, rather than the device of instruction or hint indication or element must have specific orientation, with specific orientation structure
Make and operate, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second " are only used for describing mesh
, and it is not intended that indicating or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, limit
Surely there is " first ", the feature of " second " can be expressed or implicitly include one or more this feature.New in this practicality
In the description of type, unless otherwise stated, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly
Connect；Can be to be mechanically connected or point connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning in this utility model for the language.
According to one side of the present utility model, this utility model provides a kind of built-in grain bed and tubular filter
Pulverized coal pyrolysis dust pelletizing system, Fig. 1 is the structure chart of this utility model pulverized coal pyrolysis dust pelletizing system.As shown in figure 1, this built-in granule
The pulverized coal pyrolysis dust pelletizing system of bed and tubular filter includes：Pyrolysis reactor 2, grain bed 4 and tubular filter 7, described
Grain bed is arranged in described pyrolysis reactor, positioned at described pyrolysis reactor bottom and be fixedly connected on described pyrolysis reactor
On the wall of side, and it is arranged on the front end of the pyrolysis gas outlet 5 of described pyrolysis reactor；Wherein：
Described grain bed includes loading head 41, inlet end 42, outlet side 43 and grain bed outlet 44, and described loading head tilts
It is arranged at the top of described grain bed, the upper end of described loading head is connected with the side wall of described pyrolysis reactor, described loading head
Lower end be connected with described outlet side, the semicoke granule for described pyrolysis reactor is produced collect inflow described grain bed
In；Described inlet end is air inlet grid plate structure, and described air inlet grid plate structure includes air inlet grid plate 45 and multiple first deflection plate 46,
One end of described first deflection plate is connected with described air inlet grid plate, and the other end extends as free end along lower right direction, adjacent
The free end of described first deflection plate between interval form the opening of described air inlet grid plate so that in described air inlet grid plate
The baffling being formed at opening flows toward lower right direction；Described outlet side is grid plate structure of giving vent to anger, described grid plate structure bag of giving vent to anger
Include gas screen 47 and multiple second deflection plate 48, one end of described second deflection plate is connected with described screen of giving vent to anger, the other end
Extend as free end along lower left direction, give vent to anger described in the interval formation between the adjacent free end of described second deflection plate
The opening of screen is so that the baffling being formed at the opening of described screen of giving vent to anger flows toward upper right side direction；
Described tubular filter 7 is arranged on the outside of described pyrolysis reactor, goes out with the pyrolysis gas of described pyrolysis reactor
Mouth connection, it includes filter tube 71, heat tracing device 72 and purging regenerating unit 73, and described filter tube is arranged on described tubular filter
Inside, the pyrolysis gas for discharging to described grain bed carry out further dust removal process；Due to the tar dew point in pyrolysis gas
Height, so being provided with heat tracing device in the filter, encloses described filter tube, and the height producing using heater outside described heat tracing device
Wet body as heating source, for heating described filter tube it is desirable to heat tracing device temperature is 450-550 DEG C；Described purging regeneration dress
Put the top being arranged on described tubular filter, described purging regenerating unit is connected with described filter tube and described heat tracing device respectively
Logical.
According to specific embodiment of the utility model, this grain bed profile and its specific with described pyrolysis reactor " Gu
Determine connected mode " it is not particularly limited, as long as ensureing that what grain bed can be stable is connected in pyrolysis reactor.Preferably
, described grain bed profile can be body structure, and the front-rear side walls of this body structure extend along the inner chamber of pyrolysis reactor, institute
The two ends stating front-rear side walls are fixed with the sidewall weld of pyrolysis reactor respectively.Thus, the system utilizes in pyrolytic process and produces
Hot semicoke as filter material built-in grain bed and using tubular filter combine mode, solve pulverized coal pyrolysis process
The difficult problem of middle pyrolysis gas dedusting.
The inventors discovered that, the pulverized coal pyrolysis dedusting system of the built-in grain bed of one of this utility model and tubular filter
Pyrolysis gas, by the feature of binding reactor itself, are carried out rough dusting process using built-in grain bed, through at the beginning of grain bed by system
Pyrolysis gas after step dedusting enter tubular filter and carry out final dusting, and by the use of pyrolysis char as filter material, the filter of use
Material easily regeneration is such that it is able to inexpensive, the efficient dedusting difficult problem solving pulverized coal pyrolysis gas.
According to embodiment of the present utility model it is adaptable to the pulverized coal pyrolysis dedusting system of this built-in grain bed and tubular filter
The described pyrolysis reactor of system includes：Charging aperture 1, pyrolysis gas outlet 5, discharging opening 6 and heat accumulation type radiant tube 3.Described charging aperture
It is arranged on the roof of described pyrolysis reactor, for being added to material in pyrolysis reactor.Described discharging opening is arranged on institute
State pyrolysis reactor bottom, the semicoke granule for producing pyrolysis reactor discharges, further, it is possible to prevent through grain bed
Pyrolysis gas be again introduced in reactor.Described pyrolysis gas outlet is arranged on the side wall of described pyrolysis chamber, and with described
Grain bed is fixedly connected, for the pyrolysis gas after grain bed rough dusting are discharged pyrolysis reactor.Described heat accumulating type radiation
Along the short transverse multi-tier arrangement of described reactor, every layer has the many described heat accumulating type radiation arranged in the horizontal direction to pipe
Pipe, for heating pyrolysis reactor, can break up the material adding from charging aperture so as to mix homogeneously simultaneously.Raw material is from pyrolysis
The upper feed inlet of reactor enters, and using descending from gravity, is heated by radial canal, pyrolytic reaction occurs, discharges pyrolysis
Gas and semicoke.The high temperature pyrolysis gas producing in pyrolytic process carries short grained semicoke entrance grain bed and carries out dedusting, using solid
The sedimentation of body granule, stop and motive power, separate the fine grained in semicoke in entrance grain bed, and cleaner heat
Vent one's spleen and eject from pyrolysis gas outlet.Described cleaner pyrolysis gas enter in tubular filter, are filtered by filter tube
After process, the granule of more than the 0.5um that pyrolysis gas are carried filters further it is achieved that further dust removal process in pyrolysis gas.
According to some specific embodiments, this built-in grain bed, by the use of pyrolysis byproducts-high-temperature semi-coke as particulate bed material, grain bed
Material enters grain bed after collecting flitch collection, using the mode of moving bed, the granule of more than 2.5um in pyrolysis gas is removed；
Pyrolysis gas after Bed Filtration also contain the fine particle less than 2.5um, in order to reach cleaner pyrolysis gas, also set up
Tubular filter, carries out further dust removal and filtration process.
According to embodiment of the present utility model it is adaptable to the pulverized coal pyrolysis dedusting system of this built-in grain bed and tubular filter
The material of described first deflection plate of system, connected mode and setting orientation are not particularly limited, as long as pyrolysis gas can be made to enter
Grain bed.According to some specific embodiments, described first deflection plate can be for resistant to elevated temperatures material it is preferred that be steel
Plate；One end of described first deflection plate and described air inlet grid plate can with by the way of being fixedly connected it is preferred that for welding；Institute
The setting orientation stating the other end of the first deflection plate can be the lower right any direction of described air inlet grid plate it is preferred that described
First deflection plate is 15-60 degree with the angle of vertical curve.Thus, it is possible to ensure that the pyrolysis gas that pyrolysis reactor produces can be rolled over
Stream, flows into grain bed along lower right direction.
According to embodiment of the present utility model it is adaptable to the pulverized coal pyrolysis dedusting system of this built-in grain bed and tubular filter
The material of described second deflection plate of system, connected mode and setting orientation are not particularly limited, as long as the heat after dedusting can be made
Vent one's spleen and discharge grain bed.According to some specific embodiments, described second deflection plate can be resistant to elevated temperatures material, preferably
, it is steel plate；One end of described second deflection plate can be it is preferred that be in the way of using being fixedly connected with described screen of giving vent to anger
Welding；The setting orientation of the other end of described second deflection plate can be the lower left any direction of described screen of giving vent to anger, preferably
, described second deflection plate is 15-60 degree with the angle of vertical curve.Thus, it is possible to through rough dusting in guarantee grain bed
Pyrolysis gas can baffling, along upper right side direction flow out grain bed.
According to embodiment of the present utility model it is adaptable to the pulverized coal pyrolysis dedusting system of this built-in grain bed and tubular filter
The concrete shape of the described grain bed of system is not particularly limited with the mode of being fixedly connected, as long as pyrolytic reaction can be fixedly connected on
Side wall within device.According to some specific embodiments, the concrete shape of described grain bed can for plate armature or
Person's body structure is it is preferred that be plate armature；Being fixedly connected mode and can weld of described grain bed and described pyrolysis reactor
Connect.
According to embodiment of the present utility model it is adaptable to the pulverized coal pyrolysis dedusting system of this built-in grain bed and tubular filter
The material of described loading head of system and shape are not particularly limited, as long as the semicoke granule that can collect pyrolysis reactor generation is
Can.According to some specific embodiments, the material of described loading head can be resistant to elevated temperatures material, such as steel plate, iron plate etc.；Institute
State loading head shape can for tabular or discoid it is preferred that for collection flitch.Thus, it is possible to guarantee pyrolysis reactor
The semicoke granule producing can be collected in entrance grain bed to a greater extent.
According to embodiment of the present utility model it is adaptable to the pulverized coal pyrolysis dedusting system of this built-in grain bed and tubular filter
The described grain bed outlet of system is arranged on the bottom of described grain bed, and is inserted into the discharge system of described pyrolysis gas reactor
Discharging semicoke in, for the semicoke granule in grain bed is discharged, and it is possible to pass through described pyrolysis reactor load
To control the translational speed of semicoke granule in described grain bed.
According to embodiment of the present utility model it is adaptable to the pulverized coal pyrolysis dedusting system of this built-in grain bed and tubular filter
The screen split shed area of the described air inlet grid plate structure of system and described grid plate structure of giving vent to anger is not particularly limited, as long as can protect
Card pyrolysis gas are through the flow velocity of described air inlet grid plate structure and described grid plate structure of giving vent to anger.Specifically implemented according to some
Example, pyrolysis gas can be 0.05-0.5m/s through the flow velocity of described air inlet grid plate structure and described grid plate structure of giving vent to anger.And,
The spacing of described inlet end and described outlet side can be 50-300mm, ensure pyrolysis gas dust removing effects, pyrolysis reactor simultaneously
Furnace pressure will not be too high.
According to embodiment of the present utility model it is adaptable to the pulverized coal pyrolysis dedusting system of this built-in grain bed and tubular filter
The described tubular filter of system can also include discharge 74, for collecting the net pyrolysis gas in described filter tube.According to some
Specific embodiment, described tubular filter can also include oil-gas recovery system, described oil-gas recovery system and described gas collection
Pipe connects, for reclaiming tar.
According to embodiment of the present utility model it is adaptable to the pulverized coal pyrolysis dedusting system of this built-in grain bed and tubular filter
The described purging regenerating unit 73 of system includes purging hot-air heater 731 and heat accumulation type radiant tube 732, for described filter tube and
Described heat tracing device provides high-temperature gas.According to some specific embodiments, in described purging hot-air heater, it is provided with heat accumulating type spoke
Penetrate pipe as heating source, along the short transverse multi-tier arrangement of described purging regenerating unit, every layer has described heat accumulation type radiant tube
The many described heat accumulation type radiant tubes arranged in the horizontal direction, for heating described purging regenerating unit；Described purge gass heating
Device connects with described filter tube with described heat tracing device respectively, for the gas being passed through described purging hot-air heater is heated into high temperature
It is supplied to described filter tube and described heat tracing device after gas.And, described high-temperature gas can be used as heating in described heat tracing device
Source is heated to it is preferred that described high-temperature gas can adopt noble gases, such as nitrogen or carbon dioxide；Described
Temperature after high-temperature gas heats through described heat accumulation type radiant tube is 460-600 DEG C；Described high-temperature gas is as heating source by institute
State heat tracing device and be heated to 450-550 DEG C.Additionally, after described high-temperature gas is except heating to described heat tracing device, mainly as regeneration
Gas, that is, described high-temperature gas as regeneration gas, blowback can be carried out to filter tube in described filter tube, on filter tube accumulate
Semicoke purges, it is achieved thereby that the regeneration of filter tube.
According to embodiment of the present utility model it is adaptable to the pulverized coal pyrolysis dedusting system of this built-in grain bed and tubular filter
The material of described filter tube of system, wall thickness and set-up mode are not particularly limited, as long as described purging regenerating unit can be utilized
The purge gass producing carry out final dusting and process.According to some specific embodiments, the material of described filter tube can be adopted
Take microporous ceramic filter or metal sintering filter tube；In order to reduce the resistance of described filter tube, the wall thickness of described filter tube can
To be less than 5mm, porosity is more than 30% simultaneously；The set-up mode of described filter tube can be using perpendicular to described tubular filter
The short transverse of device is in Multi-layers distributing, and every layer has the many described filter tubes being arranged in a vertical direction.And, described filter tube
On also can be provided with purging air valve, for control described purging regenerating unit produce purge gass enter described filter tube, preferably
, when described tubular filter inlet and outlet pressure difference exceedes setting value, described purging air valve may turn on so that described blow
The purge gass sweeping regenerating unit generation enter described filter tube.The purge gass that described purging regenerating unit produces are as regeneration gas
By the purging air valve on filter tube, the High Temperature High Pressure noble gases entering described filter tube are carried out instead to described filter tube
Blow, the semicoke that filter tube accumulates is purged the regeneration it is achieved that filter tube.Thereby, it is possible to blow described in effectively utilizing
The purge gass sweeping regenerating unit generation carry out final dusting process to the pyrolysis gas after grain bed rough dusting.
According to other side of the present utility model, this utility model additionally provides one kind and utilizes foregoing built-in
The method that the pulverized coal pyrolysis dust pelletizing system of grain bed carries out pulverized coal pyrolysis dedusting.According to embodiment of the present utility model, the method bag
Include following steps：
A. fine coal is added in described pyrolysis reactor by charging aperture, completes to be pyrolyzed in described pyrolysis reactor
Process.According to embodiment of the present utility model, described fine coal enters in described pyrolysis reactor by described charging aperture, through institute
After stating heat accumulation type radiant tube heating, there is pyrolytic reaction in heated fine coal in pyrolysis reactor, produces pyrolysis gas and semicoke
Granule.
B. it is pyrolyzed the semicoke granule of generation, described grain bed is entered by described loading head and is piled up, for filtering.Root
According to embodiment of the present utility model, the loading head through described grain bed for the semicoke granule that described pyrolysis reactor produces is collected, and enters
Enter to described grain bed, and piled up in described grain bed, for tentatively being removed to the pyrolysis gas in described grain bed
Dirt filters.Semicoke granule in described grain bed gradually moves down along described grain bed, is exported by described grain bed and enters institute
State pyrolysis reactor, then discharged by the discharging opening of described pyrolysis reactor, and described pyrolysis reactor can be passed through
Load is controlling the translational speed of semicoke granule in described grain bed.
C. the pyrolysis gas being pyrolyzed generation enter described grain bed from described inlet end, carry out rough dusting to described pyrolysis gas
Process.According to embodiment of the present utility model it is adaptable to the pulverized coal pyrolysis dust pelletizing system of this built-in grain bed and tubular filter
Described grain bed be plate armature, mainly include loading head, inlet end, outlet side and grain bed outlet, wherein, described enter
Gas end is air inlet grid plate structure, and described air inlet grid plate structure includes air inlet grid plate and multiple first deflection plate, described first baffling
One end of plate is connected with described air inlet grid plate, the other end along lower right direction extend as free end, described first deflection plate with
Vertical line angle is 15-60 degree, and the interval between the adjacent free end of described first deflection plate forms described air inlet grid plate
Opening is so that the baffling being formed at the opening of described air inlet grid plate flows toward lower right direction；Described outlet side is grid of giving vent to anger
Hardened structure, described grid plate structure of giving vent to anger includes give vent to anger screen and multiple second deflection plate, one end of described second deflection plate and institute
State screen of giving vent to anger to connect, the other end extends as free end along lower left direction, the angle of described second deflection plate and vertical line
For 15-60 degree, the interval between the adjacent free end of described second deflection plate formed described in give vent to anger screen opening so that
The baffling being formed at the opening of described screen of giving vent to anger flows toward upper right side direction.Described pyrolysis gas are through described air inlet grid plate structure
Flow velocity with described grid plate structure of giving vent to anger is 0.05-0.5m/s, and the spacing of described inlet end and described outlet side is 50-300mm.
The discharge end of grain bed outlet insertion pyrolysis gas reactor, the high-temperature semi-coke producing in pyrolytic process enters granule by loading head
Pile up in bed, and control the translational speed of grain bed by pyrolysis reactor load, dust-laden pyrolysis gas are from grain bed
Inlet end enters, and after semicoke particle filtering, can filter the semicoke granule of more than the 2.5um carrying in described pyrolysis gas,
Obtain rough dusting pyrolysis gas.Wherein, described pyrolysis gas are rolled over via the inlet end of described grain bed with the flow velocity of 0.05-0.5m/s
Flow in described grain bed, rough dusting filtration treatment is carried out by the semicoke granule in described grain bed, can filter
The semicoke granule of more than the 2.5um carrying in described pyrolysis gas, then with the flow velocity of 0.05-0.5m/s via described grain bed
Outlet side is discharged, and obtains the pyrolysis gas after rough dusting.
D. the pyrolysis gas through rough dusting by described outlet side out after enter described tubular filter, using regeneration gas
Carry out further dust removal process, obtain net pyrolysis gas.According to embodiment of the present utility model it is adaptable to this built-in grain bed and pipe
The described tubular filter of the pulverized coal pyrolysis dust pelletizing system of formula filter is arranged on the outside of described pyrolysis reactor, with described heat
The pyrolysis gas outlet connection of solution reactor, it includes filter tube, heat tracing device and purging regenerating unit, for preliminary through grain bed
Pyrolysis gas after dedusting carry out final dusting process.Noble gases can be introduced described purging regenerating unit by described tubular filter
Heated, for providing high-temperature gas to described filter tube and described heat tracing device, according to some specific embodiments, described height
Wet body is that noble gases, such as nitrogen or carbon dioxide, and, described high-temperature gas heat through described heat accumulation type radiant tube
Temperature afterwards is 460-600 DEG C.Described high temperature inert gas can heat to it as heating source in described heat tracing device, excellent
Choosing, described heat tracing device is heated to 450-550 DEG C as heating source by described high-temperature gas；Described high temperature inert gas are described
As regeneration gas, blowback can be carried out to filter tube in filter tube, the semicoke that filter tube accumulates is purged, it is achieved thereby that
The regeneration of filter tube.
According to embodiment of the present utility model it is adaptable to the pulverized coal pyrolysis dedusting system of this built-in grain bed and tubular filter
The described filter tube of system is built in described tubular filter, can take microporous ceramic filter or metal sintering filter tube,
In order to reduce the resistance of filter tube, the wall thickness of described filter tube can be less than 5mm, and porosity is more than 30% simultaneously；Described filtration
The set-up mode of pipe can be in Multi-layers distributing using the short transverse perpendicular to described tubular filter, and every layer has many edges and erects
Nogata is to the described filter tube of arrangement.And, purging air valve also can be provided with described filter tube, for controlling described purging again
The purge gass that generating apparatus produce enter described filter tube it is preferred that when described tubular filter inlet and outlet pressure difference exceedes setting
During value, described purging air valve may turn on so that the purge gass that described purging regenerating unit produces enter described filter tube.Institute
The purge gass stating purging regenerating unit generation are the purging air valves passing through as regeneration gas on filter tube, enter described filtration
The High Temperature High Pressure noble gases of pipe carry out blowback to described filter tube, on filter tube accumulate semicoke purge it is achieved that
The regeneration of filter tube.The purge gass producing thereby, it is possible to effectively utilize described purging regenerating unit are tentatively removed to through grain bed
Pyrolysis gas after dirt carry out final dusting process.The described pyrolysis gas through grain bed rough dusting are by the warm of described pyrolysis reactor
Outlet of venting one's spleen out enters in the filter tube of described tubular filter afterwards, carries out further dust removal process using regeneration gas, in institute
State in filter tube the semicoke particle filtering of more than the 0.5um carrying in the pyrolysis gas through grain bed rough dusting can be fallen, obtain
To net pyrolysis gas.
E. the net pyrolysis gas through further dedusting, after described discharge is collected, enter described gas recovery system for oil, enter
Row reclaims.According to embodiment of the present utility model it is adaptable to the pulverized coal pyrolysis dedusting system of this built-in grain bed and tubular filter
The described tubular filter of system can also include discharge, for collecting the net pyrolysis gas in described filter tube.According to some tools
The embodiment of body, described tubular filter can also include oil-gas recovery system, described oil-gas recovery system and described discharge
Connection, for reclaiming tar.
The inventors discovered that, the pulverized coal pyrolysis dedusting system of the built-in grain bed of one of this utility model and tubular filter
Pyrolysis gas, by the feature of binding reactor itself, are carried out rough dusting process using built-in grain bed, through at the beginning of grain bed by system
Pyrolysis gas after step dedusting enter tubular filter and carry out final dusting, and by the use of pyrolysis char as filter material, the filter of use
Material easily regeneration is such that it is able to inexpensive, the efficient dedusting difficult problem solving pulverized coal pyrolysis gas.
Embodiment 1
Using pyrolytic reaction system, Australian brown coal are processed, increased grain bed dedusting and remove with only taking whirlwind
The contrast of dirt device is shown in Table 1.
Table 1：Australian brown coal pyrolysis processing dedusting contrast
| Sequence number | Pyrolysis gas dedusting method | Dustiness after dedusting |
| 1 | Cyclone dust removal | 125mg/Nm3 |
| 2 | Grain bed+tubular filter dedusting | 20mg/Nm3 |
Embodiment 2
Using pyrolytic reaction system, Indonesia's brown coal are processed, increased grain bed dedusting and only take cyclone dust extractor
Contrast be shown in Table 2.
Table 2：Indonesia's brown coal pyrolysis processing dedusting contrast
| Sequence number | Pyrolysis gas dedusting method | Dustiness after dedusting |
| 1 | Cyclone dust removal | 132mg/Nm3 |
| 2 | Grain bed+tubular filter dedusting | 16mg/Nm3 |
The pulverized coal pyrolysis dust pelletizing system of the built-in grain bed that this utility model provides have high temperature resistant, heat insulation effect good and
The advantage of corrosion resistance, can under 500～600 DEG C of high temperature normal work, and effectively prevention pyrolysis gas in condensable
Gas leads to it to be attached on cleaner because temperature change generates tar containing dust, thus, it is possible to be effectively prevented from height
Under the conditions of temperature, acceleration equipment is aging or even makes it ineffective.And, the fine coal heat of the built-in grain bed that this utility model provides
Pyrolysis gas in solution dust pelletizing system time of staying in grain bed is short, can remove and carry secretly in pyrolysis gas within the time the shortest
Dust, effectively prevent pyrolysis gas and in cleaner, the side reactions such as second pyrolysises occurs it is ensured that tar quality；And, it is logical
Cross the feature of binding reactor itself, rough dusting process is carried out to pyrolysis gas using built-in grain bed, tentatively removes through grain bed
Pyrolysis gas after dirt enter tubular filter and carry out final dusting, and by the use of pyrolysis char as filter material, the filter material of use is easy
Regeneration such that it is able to inexpensive, efficient solve pulverized coal pyrolysis gas a dedusting difficult problem.
In the description of this specification, reference term " embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features, the knot describing with reference to this embodiment or example
Structure, material or feature are contained at least one embodiment of the present utility model or example.In this manual, to above-mentioned art
The schematic representation of language is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or
Person's feature can combine in any one or more embodiments or example in an appropriate manner.Although there has been shown and described that
Embodiment of the present utility model, it will be understood by those skilled in the art that：Without departing from principle of the present utility model and
These embodiments can be carried out in the case of objective with multiple changes, modification, replacement and modification, scope of the present utility model is by weighing
Profit requires and its equivalent limits.
Claims (10)
1. a kind of pulverized coal pyrolysis dust pelletizing system is it is characterised in that include：Pyrolysis reactor, grain bed and tubular filter, described
Grain bed is arranged in described pyrolysis reactor, positioned at described pyrolysis reactor bottom and be fixedly connected on described pyrolysis reactor
Side wall on, and be arranged on the front end of the pyrolysis gas outlet of described pyrolysis reactor；Wherein：
Described grain bed includes loading head, inlet end, outlet side and grain bed outlet, and described loading head is obliquely installed in described
The top of grain bed, the upper end of described loading head is connected with the side wall of described pyrolysis reactor, the lower end of described loading head with described
Outlet side connects, and the semicoke granule for described pyrolysis reactor is produced collects in the described grain bed of inflow；Described inlet end
For air inlet grid plate structure, described air inlet grid plate structure includes air inlet grid plate and multiple first deflection plate, described first deflection plate
One end is connected with described air inlet grid plate, and the other end extends as free end along lower right direction, adjacent described first deflection plate
Free end between interval formed described air inlet grid plate opening so that at the opening of described air inlet grid plate formed baffling
Toward the flowing of lower right direction；Described outlet side is to give vent to anger grid plate structure, and described grid plate structure of giving vent to anger includes giving vent to anger screen and multiple
Second deflection plate, one end of described second deflection plate is connected with described screen of giving vent to anger, and the other end extends conduct along lower left direction
Free end, the interval between the adjacent free end of described second deflection plate formed described in give vent to anger screen opening so that in institute
State the baffling being formed at the opening of screen of giving vent to anger to flow toward upper right side direction；
Described tubular filter is arranged on the outside of described pyrolysis reactor, connects with the pyrolysis gas outlet of described pyrolysis reactor
Logical, it includes filter tube, heat tracing device and purging regenerating unit, and described filter tube is arranged on the inside of described tubular filter, uses
Carry out further dust removal process in the pyrolysis gas that described grain bed is discharged；Enclose described filter tube outside described heat tracing device, be used for
Heat described filter tube；Described purging regenerating unit is arranged on the top of described tubular filter, and described purging regenerating unit divides
Do not connect with described filter tube and described heat tracing device.
2. pulverized coal pyrolysis dust pelletizing system as described in claim 1 is it is characterised in that described first deflection plate and vertical curve
Angle is 15-60 degree, and described second deflection plate is 15-60 degree with the angle of vertical curve.
3. pulverized coal pyrolysis dust pelletizing system as described in claim 1 it is characterised in that described grain bed be plate armature,
Described loading head is collection flitch；Described grain bed outlet is arranged on the bottom of described grain bed, and is inserted into described pyrolysis gas
In the discharging semicoke of the discharge system of reactor, and, controlled in described grain bed by described pyrolysis reactor load
The translational speed of semicoke granule.
4. the pulverized coal pyrolysis dust pelletizing system as any one of claim 1-3 it is characterised in that described tubular filter also
Including discharge and oil-gas recovery system, described discharge is connected with described filter tube, net in described filter tube for collecting
Pyrolysis gas, described oil-gas recovery system is connected with described discharge, for reclaiming tar.
5. the pulverized coal pyrolysis dust pelletizing system as any one of claim 1-3 is it is characterised in that described purging regenerating unit
Including purging hot-air heater and heat accumulation type radiant tube, described purging hot-air heater connects with described heat tracing device and described filter tube respectively
Logical, for providing high-temperature gas.
6. the pulverized coal pyrolysis dust pelletizing system as any one of claim 1-3 it is characterised in that described filter tube perpendicular to
The short transverse of described tubular filter is in Multi-layers distributing, and every layer has the many described filter tubes being arranged in a vertical direction.
7. the pulverized coal pyrolysis dust pelletizing system as any one of claim 1-3 it is characterised in that pyrolysis gas through described enter
The flow velocity of gas grid plate structure and described grid plate structure of giving vent to anger is 0.05-0.5m/s, the spacing of described inlet end and described outlet side
For 50-300mm.
8. the pulverized coal pyrolysis dust pelletizing system as any one of claim 1-3 is it is characterised in that described pyrolysis reactor bag
Include：Charging aperture, pyrolysis gas outlet, discharging opening and heat accumulation type radiant tube, described charging aperture is arranged on the top of described pyrolysis reactor
On wall, described pyrolysis gas outlet is arranged on the side wall of described pyrolysis chamber, and described heat accumulation type radiant tube is along the height of described reactor
Degree direction multi-tier arrangement, every layer has the many described heat accumulation type radiant tubes arranged in the horizontal direction.
9. pulverized coal pyrolysis dust pelletizing system as claimed in claim 6 is it is characterised in that the wall thickness of described filter tube is less than 5mm, same
When porosity be more than 30%, described filter tube takes microporous ceramic filter or metal sintering filter tube.
10. pulverized coal pyrolysis dust pelletizing system as claimed in claim 6 is it is characterised in that described filter tube is provided with purging air valve,
Purge gass for controlling described purging regenerating unit to produce enter described filter tube, when described tubular filter inlet and outlet pressure
When difference exceedes setting value, described purging air valve may turn on so that the purge gass that described purging regenerating unit produces enter institute
State filter tube.
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| CN201620618358.5U CN205974381U (en) | 2016-06-22 | 2016-06-22 | Built -in grain bed and tubular filter's fine coal pyrolysis dust pelletizing system |
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| CN201620618358.5U CN205974381U (en) | 2016-06-22 | 2016-06-22 | Built -in grain bed and tubular filter's fine coal pyrolysis dust pelletizing system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885896A (en) * | 2016-06-22 | 2016-08-24 | 北京神雾环境能源科技集团股份有限公司 | Pulverized coal pyrolysis dedusting system with granular bed and tubular filter inside |
| CN107596842A (en) * | 2017-11-02 | 2018-01-19 | 南京金凌石化工程设计有限公司 | A kind of olefin-containing flare gas recovery |
| CN109580902A (en) * | 2018-10-25 | 2019-04-05 | 四川大学 | A kind of coal dust filter device and the direct measurement device of coal seam gas-bearing capacity |
| CN110898567A (en) * | 2019-04-23 | 2020-03-24 | 江苏集萃工业过程模拟与优化研究所有限公司 | Moving bed particle dust removal device and method capable of automatically adjusting speed of filter material |
| TWI818637B (en) * | 2022-07-22 | 2023-10-11 | 國立中央大學 | Device and controlling method for filtering gas |
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2016
- 2016-06-22 CN CN201620618358.5U patent/CN205974381U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885896A (en) * | 2016-06-22 | 2016-08-24 | 北京神雾环境能源科技集团股份有限公司 | Pulverized coal pyrolysis dedusting system with granular bed and tubular filter inside |
| CN107596842A (en) * | 2017-11-02 | 2018-01-19 | 南京金凌石化工程设计有限公司 | A kind of olefin-containing flare gas recovery |
| CN109580902A (en) * | 2018-10-25 | 2019-04-05 | 四川大学 | A kind of coal dust filter device and the direct measurement device of coal seam gas-bearing capacity |
| CN110898567A (en) * | 2019-04-23 | 2020-03-24 | 江苏集萃工业过程模拟与优化研究所有限公司 | Moving bed particle dust removal device and method capable of automatically adjusting speed of filter material |
| TWI818637B (en) * | 2022-07-22 | 2023-10-11 | 國立中央大學 | Device and controlling method for filtering gas |
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