CN108659890A - Dust and coal tar, the separator and separation method of coal gas after a kind of pulverized coal pyrolysis - Google Patents
Dust and coal tar, the separator and separation method of coal gas after a kind of pulverized coal pyrolysis Download PDFInfo
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- CN108659890A CN108659890A CN201810670440.6A CN201810670440A CN108659890A CN 108659890 A CN108659890 A CN 108659890A CN 201810670440 A CN201810670440 A CN 201810670440A CN 108659890 A CN108659890 A CN 108659890A
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- coal
- sheet frame
- metallic sieve
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- 239000003245 coal Substances 0.000 title claims abstract description 50
- 239000011280 coal tar Substances 0.000 title claims abstract description 46
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 40
- 239000003034 coal gas Substances 0.000 title claims abstract description 33
- 238000000926 separation method Methods 0.000 title claims abstract description 31
- 239000000428 dust Substances 0.000 title claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 116
- 239000002184 metal Substances 0.000 claims abstract description 116
- 238000000746 purification Methods 0.000 claims abstract description 9
- 239000008246 gaseous mixture Substances 0.000 claims description 22
- 239000007787 solid Substances 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 17
- 239000002356 single layer Substances 0.000 claims description 11
- 238000002309 gasification Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 239000011229 interlayer Substances 0.000 claims description 6
- 238000007872 degassing Methods 0.000 claims description 4
- 230000008929 regeneration Effects 0.000 abstract description 4
- 238000011069 regeneration method Methods 0.000 abstract description 4
- 239000012265 solid product Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 66
- 239000003921 oil Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 5
- 239000000571 coke Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 210000000952 spleen Anatomy 0.000 description 3
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000003317 industrial substance Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011269 tar Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 208000021760 high fever Diseases 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002641 tar oil Substances 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
- C10K1/024—Dust removal by filtration
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
- C10K1/026—Dust removal by centrifugal forces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The present invention discloses dust and coal tar, the separator and separation method of coal gas after a kind of pulverized coal pyrolysis, and separator includes first into gas off-take, second into gas off-take and several Combined sieve boards, and each Combined sieve board has entrance and exit；Combined sieve board includes metal sheet frame, metal coil pipe and metallic sieve, metal sheet frame is the frame structure with entrance, outlet and side wall, the entrance of all metal sheet frames is connected to first into gas off-take, the outlet of all metal sheet frames is connected to second into gas off-take, and metallic sieve setting is multiple and is arranged in metal sheet frame；To export direction, the mesh number of metallic sieve is incremented by entrance along metal sheet frame；Metal coil pipe is arranged on the side wall of metal sheet frame.Apparatus of the present invention have the function of to detach dedusting (separation dirt pocket) and blowback purification (blowback clean room), to realize solid product separation and apparatus function " regeneration ".
Description
Technical field
The invention belongs to pyrolysis of coal field more particularly to thermal decomposition product separation fields, and in particular to after a kind of pulverized coal pyrolysis
Dust and coal tar, the separator and separation method of coal gas.
Background technology
Oil, coal and natural gas are main primary energy in the world, and coal resources are as solid fossil fuel, in China
Very important status is occupied in energy resource structure, from the point of view of China's primary energy resource reserve distribution situation, China is in " poor
The energy source distribution situation of oil, rich coal, few gas ".Coal is the highest fossil energy of phosphorus content, is also important industrial chemicals.Coal
Constituent structure complexity is various, and C/Hratio is about 1:0.8, existing long-chain, polycyclic organic matter in ingredient, and the mineral of decomposition in distress
Ash grades inanimate matter.Chemical bond in coal has higher energy, it is difficult to which fracture is opened, at present mainly by high temperature to its structure
It is split, that is, is exactly the hot-working process of coal.
Pyrolysis of coal technology is under isolation air or inert atmosphere conditions, and coal is tied by a series of complex that thermal decomposition occurs
The process of structure and component physical change and chemical change, and in particular to the reactions such as cracking, gasification, polymerization of coal generate product master
To be coke/semicoke, coal tar oil and gas.Coke is the important source material of the metallurgical industry such as steel, " triphen " in coal tar,
Anthracene, naphthalene, carbazole, quinoline, thiophene etc. are important industrial chemicals, and hydrogen, methane and carbon monoxide content are high in coal gas, can make high fever
It is worth coal gas or synthesizes the raw material of ammonia.Among coal resources in China processing and utilization approach, although the middle low temperature pyrogenation technology of coal is ground
Study carefully and apply relatively broad and more mature, research and develop and apply a variety of pyrolytic processes, but still remains that pyrolysis efficiency is low, production
The technical barriers such as object yield is not high, the difficult separation of product, waste water is difficult.
Current existing pyrolysis of coal product separation method has cyclonic separation, bag collection, electrically trapped tar oil etc., but due to dust quilt
Coal tar wraps up, and conventional method cannot thoroughly be kept completely separate coal tar and dust.
Invention content
To solve the problems of the prior art, the purpose of the present invention is to provide dust and coal tars after a kind of pulverized coal pyrolysis
The separator and separation method of oil, coal gas, apparatus of the present invention have separation dedusting and blowback purification function, can be to realize solid
Product detaches and apparatus function " regeneration ".
In order to achieve the above object, the present invention is achieved using technical solution below.
Dust and coal tar, the separator of coal gas after a kind of pulverized coal pyrolysis, including first into gas off-take, second into outlet
Road and several Combined sieve boards, each Combined sieve board have entrance and exit；
Combined sieve board includes metal sheet frame, metal coil pipe and metallic sieve, and metal sheet frame is with entrance, outlet and side wall
Frame structure, the entrance of all metal sheet frames is connected to first into gas off-take, the outlet of all metal sheet frames and the second disengaging
Air flue is connected to, and metallic sieve setting is multiple and is arranged in metal sheet frame；Entrance along metal sheet frame is to export direction, metallic screen
The mesh number of net is incremented by；Metal coil pipe is arranged on the side wall of metal sheet frame.
All metallic sieves are divided into several metallic sieve groups, in each metallic sieve group, the mesh number phase of metallic sieve
Together；Each metallic sieve group includes the metallic sieve of three pieces single layer, the Z-shape structure setting of metallic sieve of three pieces single layer；Each
It is non-90 degree angle that the metallic sieve of single layer outlines the axis of Way in metallic plate.
Along one end of metal sheet frame to the other end, the mesh number of metallic sieve is followed successively by 120 mesh, 140 mesh, 170 mesh and 200 mesh
Incremental setting.
It is welded between metallic sieve and metal sheet frame.
Along one end of metal sheet frame to the other end, disk is set to the side wall of metal sheet frame to metal coil pipe in the shape of a spiral.
When the cross section of metal sheet frame is rectangle, on each side wall of metal sheet frame, metal coil pipe is continuous S-shaped
Or fold-line-shaped detour setting.
The entrance of metal coil pipe is separately positioned on the both ends of metal sheet frame.
There is the side wall of metal sheet frame sandwich, metal coil pipe to be arranged in interlayer.
Metal coil pipe is close to interlayer wall.
Dust and coal tar, the separation method of coal gas after a kind of pulverized coal pyrolysis, by above-mentioned separator to fine coal heat
Dust is detached with coal tar oil and gas after solution, and process is as follows, is passed through high-temperature medium into metal coil pipe, metallic sieve is heated
To 300 DEG C or more, then the gaseous mixture after pulverized coal pyrolysis is passed through to the inner cavity of metal sheet frame from first into gas off-take, gaseous mixture is in gold
The inner cavity for belonging to sheet frame is heated, and that is heated closes the coal tar oil gasification in gas, when gaseous mixture passes through metallic sieve, solid particle quilt
Metallic sieve filters, and the coal tar oil and gas and coal gas that coal tar oil gasification generates are by metallic sieve degassing, and going out from metal sheet frame
Mouth is discharged through second into gas off-take；
When from first into gas off-take to second into gas off-take pressure drop increase when, stopping be passed through the mixing after pulverized coal pyrolysis
Gas；It is passed through purification gas from second into gas off-take to the inner cavity of metal sheet frame again, makes the solid particle on metallic sieve and metal
Sieve detaches, and the solid particle isolated is discharged through first into gas off-take from metal sheet frame entrance.
The flow direction of gaseous mixture after pulverized coal pyrolysis is opposite with the flow direction of high-temperature medium in metal coil pipe.
The present invention has the advantages that：
The separator of the present invention by being passed through high-temperature medium into metal coil pipe, can by the inner cavity of metal sheet frame and
Metallic sieve heats；Gaseous mixture after pulverized coal pyrolysis is behind the inner cavity that entrance is passed through metal sheet frame, and gaseous mixture is in metal sheet frame
Inner cavity heated, heated close gas in coal tar oil gasification, gaseous mixture pass through metallic sieve when, due to along metal sheet frame
To export direction, the mesh number of metallic sieve is incremented by entrance, and this row of metallic sieve, which sets form, can make solid in gaseous mixture
Particle is filtered out step by step by metallic sieve, and this filtering step by step makes metallic sieve be not easy to plug, and can extend separator
Disengaging time, the coal tar oil and gas and coal gas that coal tar oil gasification generates are flowed out by metallic sieve degassing, and from outlet, to realize
Mixed gas separation after pulverized coal pyrolysis is purified；
During isolation of purified, when separator from first into gas off-take to second into gas off-take pressure drop increase when, stop
Only from entrance be passed through pulverized coal pyrolysis after gaseous mixture；It is passed through purification gas from outlet to the inner cavity of metal sheet frame again, makes metallic screen
Online solid particle is detached with metallic sieve, and the solid particle isolated is discharged from entrance, due to along the outlet of metal sheet frame
To Way in, the mesh number of metallic sieve is successively decreased, therefore when detaching solid particle with metallic sieve, will not cause metallic screen
The clogging of net can ensure solid particle being completely exhausted out metal sheet frame, realize the blowback purification to separator, be somebody's turn to do
Process need not carry out metallic sieve to dismount and more change jobs, and can carry out online, substantially increase the use of separator
Service life and cost, save nonproductive time, improve production efficiency and production capacity.
Further, it is non-90 degree angle that the metallic sieve of each single layer outlines the axis of Way in metallic plate, i.e.,
The metallic sieve of each single layer can prevent the solid particle of sub-department in metallic sieve in this way in the tilted setting of metal sheet frame
Upper deposition.
By the effect of the separator of the present invention it is found that the separation method of the present invention can make the gaseous mixture after pulverized coal pyrolysis
In dust efficiently separated with coal tar, coal gas；It, can be by dividing and when the pressure drop in separator increases
From device blowback, reach and clean purpose is carried out to separator so that separator detaches dedusting function " regeneration " so that point
From can opposite serialization carry out, improve the efficiency of separation.
Further, the flow direction of the gaseous mixture after pulverized coal pyrolysis is opposite with the flow direction of high-temperature medium in metal coil pipe so that
Separator is smaller from the direction temperature difference for being exported to entrance, can prevent the relatively low dust and coal caused in gaseous mixture of local temperature
Tar, coal gas are into detaching incomplete phenomenon.
Description of the drawings
Fig. 1 is separator schematic diagram of the present invention；
Fig. 2 is the plate frame structure schematic diagram in separator of the present invention；
Fig. 3 is the metallic sieve group structural schematic diagram in separator of the present invention；
Fig. 4 is the structural schematic diagram after all metallic sieves combination in separator of the present invention；
Fig. 5 is the structural schematic diagram of the Combined sieve board in separator of the present invention；
Operating diagram when Fig. 6 is separator of the present invention as separation dirt pocket；
Fig. 7 be separator of the present invention as blowback clean room when operating diagram.
In figure, 1- first goes out into gas off-take, 1-1- second into gas off-take, 2- high-temperature gas intake headers, 3- high-temperature gases
Mouth manifold, 4- metal sheet frames, 5- metal coil pipes, the metallic sieve of 6- different meshes, 7- high-temperature gas inlet pipelines, 8- High Temperature Gas
Body outlet conduit, 9- Combined sieve boards.
Specific implementation mode
Below in conjunction with drawings and examples, the specific implementation mode of the present invention is described in more details, so as to energy
The advantages of enough more fully understanding the solution of the present invention and its various aspects.
As shown in Figure 1 after the pulverized coal pyrolysis of the present invention dust and coal tar, coal gas separator, including first into outlet
Road 1, second has entrance and exit into gas off-take 1-1 and several Combined sieve boards 9, each Combined sieve board 9；
With reference to Fig. 2~Fig. 5, Combined sieve board 9 includes metal sheet frame 4, metal coil pipe 5 and metallic sieve 6, and metal sheet frame 4 is
Frame structure with entrance, outlet and side wall, metal coil pipe 5 are arranged on the side wall of metal sheet frame 4, and metal coil pipe 5 goes out
Entrance is separately positioned on the both ends (see Fig. 2) of metal sheet frame 4, and the entrance of all metal sheet frames 4 is connected to first into gas off-take 1,
The outlet of all metal sheet frames 4 is connected to second into gas off-take 1-1 (see Fig. 1), and metallic sieve 6 is arranged multiple and is arranged in metal
(see Fig. 5) in sheet frame 4, welded between metallic sieve 6 and metal sheet frame 4；Entrance along metal sheet frame 4 is to export direction, metal
The mesh number of sieve 6 is incremented by (see Fig. 4)；
Referring to Fig.1, the entrance (i.e. high-temperature gas inlet pipeline 7) of all metal coil pipes 5 is total with high-temperature gas import
Pipe 2 is connected to, and the outlet (i.e. high-temperature gas outlet conduit 8) of all metal coil pipes 5 is connected to high-temperature gas outlet header 3.
As shown in Fig. 4 and Fig. 3, all metallic sieves 6 divide for several metallic sieve groups, in each metallic sieve group,
The mesh number of metallic sieve 6 is identical；Each metallic sieve group includes the metallic sieve 6 of three pieces single layer, the metallic sieve 6 of three pieces single layer
Z-shape structure setting (see Fig. 3)；Each metallic sieve 6 of single layer and the axis in 4 entrance direction of metal sheet frame are non-90 degree
Angle (see Fig. 5 to Fig. 7).
As shown in Figure 4, it is preferred that along one end of metal sheet frame 4 to the other end, the mesh number of metallic sieve 6 is followed successively by 120
Mesh, 140 mesh, 170 mesh and 200 mesh are incrementally arranged.
With reference to Fig. 2, preferably along one end of metal sheet frame 4 to the other end, disk is set to metallic plate to metal coil pipe 5 in the shape of a spiral
The side wall of frame 4；And, it is preferred that when the cross section of metal sheet frame 4 is rectangle, on each side wall of metal sheet frame 4, gold
It is that continuous S-shaped or fold-line-shaped detour are arranged to belong to coil pipe 5.
Preferably, there is the side wall of metal sheet frame 4 of the invention sandwich, metal coil pipe 5 to be arranged in interlayer, metal
Coil pipe 5 is close to interlayer wall, and interlayer wall is the metal material that readily conducts heat, thickness 2mm；Metal coil pipe 5 is that refractory metal pipe is curved
Song is made, and pipeline specifications are
Coal tar exists in hot environment in the form of coal tar oil and gas, can be by mixed gas using solid and gas separator
In the separation of trace solid particle, further separating liquid gas product.Separator through the invention is to powder after pulverized coal pyrolysis
The process that dirt is detached with coal tar, coal gas is following (referring to Fig.1~Fig. 7)：
High-temperature medium is passed through by high-temperature gas intake header 2 into metal coil pipe 5 to heat entire separator,
It is passed through from first into gas off-take 1 when the temperature of metallic sieve 6 is reached 300 DEG C or more, then by the gaseous mixture after pulverized coal pyrolysis
The inner cavity of metal sheet frame 4, gaseous mixture are heated in the inner cavity of metal sheet frame 4, and that is heated closes the coal tar oil gasification in gas, mixing
When gas passes through metallic sieve 6, solid particle is filtered by metallic sieve 6, and the coal tar oil and gas and coal gas that coal tar oil gasification generates pass through
Metallic sieve degassing, and be discharged from the outlet of metal sheet frame 4 second into gas off-take 1-1；
When from first into gas off-take 1 to the second, pressure drop into gas off-take 1-1 increases, stop being passed through mixed after pulverized coal pyrolysis
Gas is closed, then purification gas is passed through from second into gas off-take 1-1 to the inner cavity of metal sheet frame 4, makes the solid particle on metallic sieve 6
It is detached with metallic sieve 6, the solid particle isolated is discharged through first into gas off-take 1 from 4 entrance of metal sheet frame.
Preferably, in separation process, make the flow direction and metal dish of the gaseous mixture in single Combined sieve board 9 after pulverized coal pyrolysis
The flow direction of high-temperature medium is opposite in pipe 5.
In the present invention, using high-temperature gas as high-temperature medium, temperature is 350 DEG C or more, and high-temperature gas passes through metal dish
It manages and metallic sieve is heated to 300 DEG C or more, the gaseous mixture containing coke fines, coal tar oil and gas and coal gas is heated, and mixing is made
Coal tar oil gasification in gas, solid particle are stuck in metallic sieve, coal tar oil and gas and coal gas and go air-liquid to detach work by metallic sieve
Section, to realize the isolation of purified function of separator.When separator is from first into gas off-take 1 to the second into gas off-take 1-1
Pressure drop increase when, purified coal gas is reversely blown into separator, by the solid product being stuck on sieve blow out separation dress
It sets, to make separator detach dedusting function " regeneration ".
As shown in fig. 6, the gaseous mixture containing coke fines, coal tar oil and gas and coal gas from 4 lower part of metal sheet frame (i.e. entrance) into
Enter, top (exports) effusion, this process is dedusting separation process；As shown in fig. 7, blowback air is then from 4 top of metal sheet frame
(exporting) enters, lower part (i.e. entrance) effusion.
Referring to Fig.1, the structure after being connected with each other for two separators of the invention, two separators are respectively to detach
Device A and separator B, separator A and separator B are symmetrical set, when being dusted, from a whirlwind point
From the heat of mixing for being mingled with a small amount of dust vent one's spleen and be dusted by separator A, separating device A is as separation dirt pocket, package
Gasify after the coal tar contact high-temperature metal sieve of dust, dust is made to be detached with coal tar, coal tar oil vapour and coal gas pass through and divides
From dirt pocket, condensation workshop section is gone to.When pressure drops of the separator A first into gas off-take 1 to the second into gas off-take 1-1 increases, cut
The heat of mixing for being mingled with a small amount of dust for changing a cyclonic separation is vented one's spleen and is dusted by separator B, will the condensation of condensation workshop section
A part of clean gas afterwards is reversely passed through in separator A, realizes that the blowback to separator A purifies, at this time separator A
For blowback clean room, in blowback purification process, clean gas blowback is stuck in separator A metal sieve plates gap and accumulates in air flue
Dust, dust is taken out of separator A, into secondary cyclone separator.Being mingled with after the separation of secondary cyclone separator
The pyrolysis gas of micro dust is dusted into separator B with another of gaseous mixture mixing after a cyclonic separation and detaches；
When pressure drops of the separator B first into gas off-take 1 to the second into gas off-take 1-1 increases, switching gas circuit makes separation
Device A vents one's spleen to the heat of mixing and carries out separation dedusting as separation dirt pocket again, separator B be used as again blowback clean room into
The blowback purification of row itself, recycles, achievees the purpose that continuously to detach dedusting according to this.
The present invention can not only effective solution pyrolysis solid, liquid product difficulty separation technical barrier, and operate simple, peace
It is complete reliable.The above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although with reference to embodiment to the present invention into
Detailed description is gone, it will be apparent to an ordinarily skilled person in the art that under the premise without departing from the spirit and scope of the present invention
The modification carried out to the present invention or equivalent substitute, should all cover within the scope of the present invention.
Claims (10)
1. the separator of dust and coal tar, coal gas after a kind of pulverized coal pyrolysis, which is characterized in that including first into gas off-take
(1), second into gas off-take (1-1) and several Combined sieve boards, and each Combined sieve board has entrance and exit；
Combined sieve board includes metal sheet frame (4), metal coil pipe (5) and metallic sieve (6), and metal sheet frame (4) is with entrance, goes out
The frame structure of mouth and side wall, the entrance of all metal sheet frames (4) are connected to first into gas off-take (1), all metal sheet frames (4)
Outlet be connected into gas off-take (1-1) with second, metallic sieve (6) setting is multiple and is arranged in the metal sheet frame (4)；Along metal
The entrance of sheet frame (4) to export direction, the mesh number of metallic sieve (6) is incremented by；Metal coil pipe (5) is arranged in metal sheet frame (4)
On side wall.
2. dust exists with coal tar, the separator of coal gas, feature after a kind of pulverized coal pyrolysis according to claim 1
It is divided into several metallic sieve groups in, all metallic sieves (6), in each metallic sieve group, the mesh number phase of metallic sieve (6)
Together；Each metallic sieve group includes the metallic sieve (6) of three pieces single layer, and metallic sieve (6) Z-shape structure of three pieces single layer is set
It sets；Each metallic sieve (6) of single layer and the axis in metal sheet frame (4) entrance direction are non-90 degree angle.
3. dust exists with coal tar, the separator of coal gas, feature after a kind of pulverized coal pyrolysis according to claim 1
In along one end of metal sheet frame (4) to the other end, the mesh number of metallic sieve (6) is followed successively by 120 mesh, 140 mesh, 170 mesh and 200
Mesh is incrementally arranged.
4. dust exists with coal tar, the separator of coal gas, feature after a kind of pulverized coal pyrolysis according to claim 1
In being welded between metallic sieve (6) and metal sheet frame (4).
5. dust exists with coal tar, the separator of coal gas, feature after a kind of pulverized coal pyrolysis according to claim 1
In along one end of metal sheet frame (4) to the other end, disk is set to the side wall of metal sheet frame (4) to metal coil pipe (5) in the shape of a spiral.
6. dust exists with coal tar, the separator of coal gas, feature after a kind of pulverized coal pyrolysis according to claim 1
In when the cross section of metal sheet frame (4) is rectangle, on each side wall of metal sheet frame (4), metal coil pipe (5) is continuous
S-shaped or fold-line-shaped detour setting.
7. dust exists with coal tar, the separator of coal gas, feature after a kind of pulverized coal pyrolysis according to claim 1
In the entrance of metal coil pipe (5) is separately positioned on the both ends of metal sheet frame (4).
8. dust exists with coal tar, the separator of coal gas, feature after a kind of pulverized coal pyrolysis according to claim 1
In there is the side wall of metal sheet frame (4) sandwich, metal coil pipe (5) to be arranged in interlayer.
9. dust and coal tar, the separation method of coal gas after a kind of pulverized coal pyrolysis, which is characterized in that appointed using claim 1-8
Separator described in meaning one detaches dust after pulverized coal pyrolysis with coal tar oil and gas, and process is as follows, to metal coil pipe
(5) be passed through high-temperature medium in, metallic sieve (6) be heated to 300 DEG C or more, then by the gaseous mixture after pulverized coal pyrolysis from first into
Gas off-take (1) is passed through the inner cavity of metal sheet frame (4), and gaseous mixture is heated in the inner cavity of metal sheet frame (4), in the conjunction gas heated
Coal tar oil gasification, gaseous mixture pass through metallic sieve (6) when, solid particle by metallic sieve (6) filter, coal tar oil gasification generate
Coal tar oil and gas and coal gas by metallic sieve degassing, and from the outlet second of metal sheet frame (4) into gas off-take (1-1) arrange
Go out；
When increasing to second into the pressure drop of gas off-take (1-1) from first into gas off-take (1), stop being passed through mixed after pulverized coal pyrolysis
Close gas；It is passed through purification gas from second into gas off-take (1-1) to the inner cavity of metal sheet frame (4) again, makes consolidating on metallic sieve (6)
Body particle is detached with metallic sieve (6), and the solid particle isolated is arranged through first into gas off-take (1) from metal sheet frame (4) entrance
Go out.
10. dust exists with coal tar, the separation method of coal gas, feature after a kind of pulverized coal pyrolysis according to claim 9
In the flow direction of the gaseous mixture after pulverized coal pyrolysis is opposite with the flow direction of metal coil pipe (5) interior high-temperature medium.
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