CN105233602B - The system separated for fine coal low temperature distillation high temperature tar gas with fine dust particles - Google Patents
The system separated for fine coal low temperature distillation high temperature tar gas with fine dust particles Download PDFInfo
- Publication number
- CN105233602B CN105233602B CN201510658572.3A CN201510658572A CN105233602B CN 105233602 B CN105233602 B CN 105233602B CN 201510658572 A CN201510658572 A CN 201510658572A CN 105233602 B CN105233602 B CN 105233602B
- Authority
- CN
- China
- Prior art keywords
- blocker
- grain bed
- outlet
- bed
- high temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Cyclones (AREA)
Abstract
The invention discloses a kind of system separated for fine coal low temperature distillation high temperature tar gas with fine dust particles, including cyclone separator (1), grain bed blocker, drop catcher (4) and condenser (5)；Wherein, cyclone separator (1) entrance is connected with pulverized coal pyrolysis outlet of still, cyclone separator (1) outlet is connected with grain bed blocker entrance, the outlet of grain bed blocker is connected with drop catcher (4) entrance, drop catcher outlet (4) is connected with condenser (5) entrance, and condenser (5) outlet is connected with tar storage tank.Using above-mentioned technical proposal, the 3-stage dust-removal process that high-temperature dusty gas from pulverized coal pyrolysis stove out passes through dust pelletizing system, realization is farthest removed to dust granules in high-temperature gas mixture body, whole system is reached higher efficiency of dust collection, so as to obtain the tar product of higher quality.
Description
Technical field：
It is more particularly to a kind of to be used for height in fine coal low temperature distillation the present invention relates to a kind of system of pulverized coal pyrolysis gas solid separation
The system that temperature tar gas is separated with fine dust particles.
Background technology：
There is dust granules content in tar in current fine coal low-temperature carbonization system big, the low problem of oil quality, this is asked
Topic limits the utilization of coal resources so that economic benefit is not high.For this problem, in existing removing high-temperature dusty gas
The method of dust mainly have cyclonic separation dedusting, this dedusting structure is simple, cheap, but for less than 10 μm dust separations
It is less efficient；Electrostatic precipitation has higher separative efficiency for fine dust, but electrostatic precipitation is in the operating mode less than 380 DEG C
Under the conditions of it is more stable, the electrode of electrostatic precipitator is by accelerated ageing at high temperature；It is higher that sintered metal net is separated by filtration efficiency,
But easily block, it is perishable, tar steam have stronger corrosivity；Porous ceramic pipe dedusting is easily blocked；Bag-type dust is general
It can not under the high temperature conditions work, need to carry out temperature adjustment before dedusting, waste the energy.Existing high-temperature dust removal technique all has one
Fixed technological deficiency, it is impossible to reach expected dust removing effects.
The content of the invention：
The purpose of the present invention is to overcome some defects of the prior art to be used for height in fine coal low temperature distillation there is provided one kind
The system that temperature tar gas is separated with fine dust particles.
To reach above-mentioned purpose, the present invention adopts the following technical scheme that to realize：
The system separated for fine coal low temperature distillation high temperature tar gas with fine dust particles, including cyclone separator,
Grain bed blocker, drop catcher and condenser；Wherein,
Cyclone inlet is connected with pulverized coal pyrolysis outlet of still, Cyclone outlet and grain bed blocker entrance phase
Even, grain bed blocker outlet is connected with drop catcher entrance, and drop catcher outlet is connected with condenser inlet, condenser
Outlet is connected with tar storage tank.
Further improve of the invention is that the grain bed in grain bed blocker selects fixed bed form.
Of the invention further improve be, grain bed blocker includes the first grain bed blocker being arranged in parallel and the
Two grain bed blockers.
Of the invention further improve be, the inlet duct of the first grain bed blocker and the second grain bed blocker and
Valve is provided with outlet conduit.
Further improve of the invention is that fixed bed is upper entering and lower leaving form, using every layer of middle berth of multilayer hierarchy
If the filtering particle of different-grain diameter, is sequentially reduced from upper strata to lower floor's filtering material particle；Divergent structure is used at fixed bed import, its
Exit uses tapered configuration；And some heating tubes are uniformly distributed in bed.
Further improve of the invention is, is set on the pipeline that Cyclone outlet is connected with grain bed blocker entrance
It is equipped with heat-insulation layer.
Further improve of the invention is that stratum granulosum selection of filtering material particle size range is 10 μm of ＜ r in grain bed blocker
＜ 4mm semicoke particle.
The present invention, which is further improved, to be, the high temperature dust gas come out from pulverized coal pyrolysis stove, first in cyclone separator
It is middle to be pre-processed, the larger dust granules of particle diameter are removed, second level processing is carried out subsequently into grain bed blocker, will be big
The filtering of part dust granules, final high temperature gaseous mixture enter drop catcher by containing superfine dust granules remove, it is final high
Temperature tar steam is condensed out within the condenser, obtains tar product.
Relative to prior art, the present invention has the advantage that：
The present invention can be divided into three-level for the system that fine coal low temperature distillation high temperature tar gas is separated with fine dust particles：Rotation
Wind is separated into first order dust removal process, for separating the dust granules that particle diameter in gas is relatively large；Grain bed is intercepted as the
Two-stage dust removal process, for removing the dust granules that particle diameter in gas is relatively small；Droplet capture is third level dust removal process, is led to
The partial condensation adhesive attraction for the heavy constituent crossed in a small amount of tar steam removes superfine dust, and 3-stage dust-removal series connection completes whole
Dust removal process.
Using above-mentioned technical proposal, the high-temperature dusty gas come out from pulverized coal pyrolysis stove enters dust pelletizing system, passes through dedusting
The 3-stage dust-removal process of system, realization is farthest removed to the dust granules entrained by it, reaches whole system higher
Efficiency of dust collection, so as to obtain the tar product compared with high-quality.
Brief description of the drawings：
The flow for the system that Fig. 1 separates for the present invention for fine coal low temperature distillation high temperature tar gas with fine dust particles
Figure.
Embodiment：
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in figure 1, the system that the present invention is separated for fine coal low temperature distillation high temperature tar gas with fine dust particles, bag
Cyclone separator 1, the first grain bed blocker 2, the second grain bed blocker 3, drop catcher 4 and condenser 5 are included.
Wherein, pulverized coal pyrolysis outlet of still is connected with the entrance of cyclone separator 1, what cyclone separator 1 was exported and was arranged in parallel
First grain bed blocker 2 is connected with the second grain bed blocker 3 supervisor's line entry, and the first grain bed being arranged in parallel is intercepted
The grain bed blocker 3 of device 2 and second supervisor's tube outlet is connected with the entrance of drop catcher 4, the outlet of drop catcher 4 and condensation
The entrance of device 5 is connected, and the outlet of condenser 5 is connected with tar storage tank.
In order to understand the present invention is further, now further do as described below to it：
The described entrance of cyclone separator 1 is connected with pulverized coal pyrolysis outlet of still, and cyclone separator 1 is used as the of dust pelletizing system
One-level, namely pre-processing device, 10 μm of dust granules of particle diameter ＞ in high-temperature dusty gas are removed, separative efficiency is reachable
98%.The semicoke particle (10 μm of ＜ r ＜ 4mm of particle diameter) separated by cyclone separator can be used as the filter of grain bed blocker
Material.
The described outlet of cyclone separator 1 is connected with grain bed blocker entrance, and grain bed blocker is whole dedusting system
The second level cleaner of system, inexpungible dust granules (1 μm of μ of ＜ r ＜ 10 of dust size is pre-processed for removing whirlwind
M), grain bed selects fixed bed form.Also, the second level of dust pelletizing system is composed in parallel by two identical fixed beds, pass through
Valve controlling air inlet, after one of fixed bed stratum granulosum reaches saturation, cuts off the branch road air intake valve, opens another solid
Valve on fixed bed branch road, proceeds stratum granulosum dust removal process, while carrying out operation of reloading to the stratum granulosum of saturation.
The described entrance of cyclone separator 1 is provided with to the first grain bed blocker 2 and the exit of the second grain bed blocker 3
Heat-insulation layer prevents the condensation of high temperature tar steam to maintain dust removal process to be carried out in the case of high temperature (450 DEG C or so).
The first described grain bed blocker 2 and the second grain bed blocker 3 use fixed bed stratum granulosum, and fixed bed is many
Layer hierarchy, the filtering particle of different-grain diameter is laid in every layer, particle diameter of filter medium is sequentially reduced from upper strata to lower floor, to intercept not
With the dust granules of particle size range, to improve filter efficiency.Fixed bed is to use divergent structure at upper entering and lower leaving form, import,
The structure can allow airflow into flow velocity after fixed bed and reduce, and can be uniformly distributed, and ensure higher filter efficiency with this, and it is exported
Place uses tapered configuration, increases gas discharge rate, the convenient connection with next equipment；To prevent the temperature of start-up bed
The condensation of coal tar vapor portion is deposited in stratum granulosum caused by too low, while the uniformity of bed temperature is kept, in bed
It is uniformly distributed some heating tubes.
Filtering material particle in described the first grain bed blocker 2 and the second grain bed blocker 3 use particle size range for
10 μm of ＜ r ＜ 4mm semicoke particle, semicoke particle be porous medium, its in the case of a high temperature viscosity increase, for powder
Coal, semicoke powder adsorptivity it is stronger, while with semicoke particle filtering semicoke powder, eliminating deashing regenerative process, simplifying
Technological process.This particle can be provided by the separated particle got off of cyclone separator.
Described grain bed blocker outlet is connected with drop catcher entrance 4, and drop catcher 4 is used as dust pelletizing system
Third level cleaner, by controlling its temperature (350~380 DEG C) so that in tar steam a small amount of heavy constituent (pitch) with
Fine dust (1 μm of particle diameter r ＜) through grain bed blocker is core progress condensation sedimentation, so as to remove superfine in mixed gas
Powder dust particle, obtains purer gas.
The described outlet of drop catcher 4 is connected with the entrance of condenser 5, and condenser 5 is by the coal tar after 3-stage dust-removal
Oil vapour is condensed, and obtains the tar product of high-quality.
The high-temperature dusty gas come out from pulverized coal pyrolysis stove is carried out by present system first in cyclone separator 1
Pretreatment, the larger dust granules of particle diameter is removed, subsequently into the first grain bed blocker 2 and the second grain bed blocker 3
Carry out second level processing, most of dust granules are filtered, final high temperature gaseous mixture enter drop catcher 4 by containing it is superfine
Dust granules are removed, by the 3-stage dust-removal process of dust pelletizing system, realize removal maximum to dust granules, make whole system
System possesses higher efficiency of dust collection.Final high temperature tar steam is condensed out in condenser 5, so as to obtain higher Jiao of quality
Oil product.
Claims (5)
1. the system separated for fine coal low temperature distillation high temperature tar gas with fine dust particles, it is characterised in that including whirlwind
Separator (1), grain bed blocker, drop catcher (4) and condenser (5)；Wherein,
Cyclone separator (1) entrance is connected with pulverized coal pyrolysis outlet of still, cyclone separator (1) outlet and grain bed blocker entrance
It is connected, the outlet of grain bed blocker is connected with drop catcher (4) entrance, drop catcher (4) outlet and condenser (5) entrance
It is connected, condenser (5) outlet is connected with tar storage tank；Grain bed in grain bed blocker selects fixed bed form；
Grain bed blocker includes the first grain bed blocker (2) and the second grain bed blocker (3) being arranged in parallel；
The high temperature dust gas come out from pulverized coal pyrolysis stove, is pre-processed in cyclone separator (1) first, and particle diameter is larger
Dust granules are removed, and are carried out second level processing subsequently into grain bed blocker, most of dust granules are filtered, final high temperature
Gaseous mixture enter drop catcher (4) by containing superfine dust granules remove, final high temperature tar steam is in condenser (5)
Condense out, obtain tar product.
2. the system according to claim 1 separated for fine coal low temperature distillation high temperature tar gas with fine dust particles,
Characterized in that, being all provided with the inlet duct and outlet conduit of the first grain bed blocker (2) and the second grain bed blocker (3)
It is equipped with valve.
3. the system according to claim 1 separated for fine coal low temperature distillation high temperature tar gas with fine dust particles,
Characterized in that, fixed bed is upper entering and lower leaving form, using the filtering particle that different-grain diameter is laid in every layer of multilayer hierarchy,
It is sequentially reduced from upper strata to lower floor's filtering material particle；Divergent structure is used at fixed bed import, its exit uses tapered configuration；And
Some heating tubes are uniformly distributed in bed.
4. the system according to claim 1 separated for fine coal low temperature distillation high temperature tar gas with fine dust particles,
Characterized in that, being provided with heat-insulation layer on the pipeline that cyclone separator (1) outlet is connected with grain bed blocker entrance.
5. the system according to claim 1 separated for fine coal low temperature distillation high temperature tar gas with fine dust particles,
Characterized in that, stratum granulosum selection of filtering material particle size range is 10 μm of ＜ r ＜ 4mm semicoke particle in grain bed blocker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510658572.3A CN105233602B (en) | 2015-10-12 | 2015-10-12 | The system separated for fine coal low temperature distillation high temperature tar gas with fine dust particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510658572.3A CN105233602B (en) | 2015-10-12 | 2015-10-12 | The system separated for fine coal low temperature distillation high temperature tar gas with fine dust particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105233602A CN105233602A (en) | 2016-01-13 |
| CN105233602B true CN105233602B (en) | 2017-09-22 |
Family
ID=55031575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510658572.3A Active CN105233602B (en) | 2015-10-12 | 2015-10-12 | The system separated for fine coal low temperature distillation high temperature tar gas with fine dust particles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105233602B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105950199A (en) * | 2016-06-22 | 2016-09-21 | 北京神雾环境能源科技集团股份有限公司 | Powder coal pyrolysis dedusting system with built-in granular bed |
| CN107121310B (en) * | 2017-05-31 | 2020-06-19 | 西安交通大学 | System and method for separating and extracting soot generated by coal and biomass |
| TWI658857B (en) * | 2018-05-23 | 2019-05-11 | National Central University | Granular moving bed and method for removing tar using thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480551A (en) * | 2009-01-04 | 2009-07-15 | 神华集团有限责任公司 | Filtering dust remover and filtering dust removing system as well as dust collection method of system thereof |
| CN102908841A (en) * | 2012-10-16 | 2013-02-06 | 哈尔滨瑞格能源环境技术发展有限责任公司 | Method and device for dedusting and purifying low-temperature dry-distilled gas |
| CN204107267U (en) * | 2014-10-21 | 2015-01-21 | 北京弘扬紫东环保科技有限公司 | Immobilized particles layer deduster |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6919017B2 (en) * | 2002-04-11 | 2005-07-19 | Conocophillips Company | Separation process and apparatus for removal of particulate material from flash zone gas oil |
-
2015
- 2015-10-12 CN CN201510658572.3A patent/CN105233602B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480551A (en) * | 2009-01-04 | 2009-07-15 | 神华集团有限责任公司 | Filtering dust remover and filtering dust removing system as well as dust collection method of system thereof |
| CN102908841A (en) * | 2012-10-16 | 2013-02-06 | 哈尔滨瑞格能源环境技术发展有限责任公司 | Method and device for dedusting and purifying low-temperature dry-distilled gas |
| CN204107267U (en) * | 2014-10-21 | 2015-01-21 | 北京弘扬紫东环保科技有限公司 | Immobilized particles layer deduster |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105233602A (en) | 2016-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8702848B2 (en) | Process for separating particulate solids from a gas stream | |
| CN103265978B (en) | Integrated system and method for catalytic cracking and dust removal of medium-and-low temperature dry distillation coal gas | |
| RU2415718C1 (en) | Cyclone with inlet separator branch pipe and bypass tubes to discharge fine particles | |
| CN105233602B (en) | The system separated for fine coal low temperature distillation high temperature tar gas with fine dust particles | |
| CN102716628B (en) | Grain de-dusting filter and de-dusting filtering method | |
| CN111001239A (en) | Pyrolysis gas dust removal method and device | |
| CN111804567B (en) | Process for filtering superfine active coke powder | |
| CN207384994U (en) | The filtering cyclone separation device of impurity in a kind of removal waste lubricating oil | |
| CN105999910B (en) | A kind of fly-ash filter dust arrester | |
| CN107158876A (en) | The production of hydrocarbons technique of high-temperature oil gas dust arrester after a kind of oil shale retorting | |
| CN103397873B (en) | Natural gas field well head gas purifier | |
| CN108325311B (en) | Method and device for prolonging continuous operation period of coal pyrolysis flue gas control treatment equipment | |
| CN201333367Y (en) | Complex fly ash filter with cyclone inside for pre dust removal | |
| CN206911014U (en) | It is a kind of that pre-filtered process unit is carried out to pyrolysis gas using particle semicoke | |
| CN111111941A (en) | Oil mist treatment device of multi-station cold header | |
| CN103071349B (en) | Method and device for separating and collecting harmful ultrafine dust in industrial discharged exhaust gas | |
| CN101658750B (en) | Composite flyash filter with built-in cyclone pre-dusting | |
| CN210356560U (en) | Dewaxing system for silicon carbide sintering furnace | |
| CN208357060U (en) | A kind of spiral case spiral-flow type fine particle flash baking exclusion device | |
| CN205886500U (en) | Subside integrated device that gathers dust | |
| CN104073298A (en) | Device and method for reducing content of ash in lignite gasification synthesis gas | |
| RU168683U1 (en) | DUST CATCHER CLASSIFIER | |
| CN102327717B (en) | Rotary type granular layer dust removal device for high-temperature oil gas | |
| CN105148672B (en) | A kind of combined duster for fuel gas | |
| CN209917539U (en) | Rotating bed reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |