CN209451525U - A kind of moving granular bed filter - Google Patents
A kind of moving granular bed filter Download PDFInfo
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- CN209451525U CN209451525U CN201822183158.3U CN201822183158U CN209451525U CN 209451525 U CN209451525 U CN 209451525U CN 201822183158 U CN201822183158 U CN 201822183158U CN 209451525 U CN209451525 U CN 209451525U
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- granular bed
- bed filter
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- moving granular
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Abstract
The utility model discloses a kind of moving granular bed filters, including the internal layer cylinder (1), middle cylinder (2) and outer layer barrel (3) being successively arranged from inside to outside, first annular cavity is formed between internal layer cylinder (1) and middle cylinder (2), filtering stratum granulosum (4) is equipped in the first annular cavity, internal layer cylinder (1) contains the axially aligned more Internal baffle items (11) being obliquely installed, and middle cylinder (2) contains the axially aligned more outer baffle items (21) being obliquely installed.The moving granular bed filter can be filtered 600 DEG C~1000 DEG C of high-temperature flue gas, it is ensured that the particle as kindling material of big energy is not present in neat stress side.Further the problems such as the big warm area cooling thermal impact under solution batch production bring big flow, the impact of big concentration dust, explosion hazard gases aggregation, long service life, filter efficiency are high.
Description
Technical field
The utility model relates to a kind of moving granular bed filters.
Background technique
The production method of the smelting furnaces such as converter be it is intermittent, i.e., smelting furnace is emptied, again before and after smelting production
The warming-up exercises such as new charging.
During warming-up exercise, there is no the smelting for having intensity, for smoke components based on air, flue-gas temperature is air heats
It is slightly improved after radiation, there is no the flue dust for having intensity.
During smelting production, with the raising of rate of driving, by the flue-gas temperature of fire door evolution up to 1600 DEG C, flue gas at
CO content may be up to 90% in point, and the dust that flue gas carries is up to 150g/Nm3, the complicated component of dust, mainly have FeO,
Fe2O3, CaO etc., the reaction such as oxidation heat liberation will also occur in subsequent flue for the flue gas and flue dust of evolution.
It smelts production duration to be usually no more than 20 minutes, warming-up exercise duration is generally also no more than 20 minutes.Due to
It is big to need very strong reply for the production method of this fast intermittent formula, the facility of converter gas treatment facility especially high temperature
Warm area cooling thermal impact, the ability of the impact of big concentration dust, explosion hazard gases aggregation.
At present both at home and abroad in prior art, the highest production method of energy recovery utilization efficiency is: sealed vapour is arranged
Change cooling stack, water vapour, setting spray or vaporation-type are transferred to the obvious heat of smoke that radiating heat form is 800 DEG C of chief commander or more
Direct cooling tower by flue-gas temperature be reduced to 70 DEG C or 250 DEG C hereinafter, recycle and utilizing CO content height and O2The low converter of content
Coal gas.800 DEG C of obvious heat of smoke below are not able to achieve Exposure degree due to smoke components are explosive, smoke content is high etc..
The direct cooling tower of fountain by flue-gas temperature be reduced to 70 DEG C hereinafter, can will portion big absolutely while cooled flue gas
Point flue dust washes down, but there are the problem of: sensible heat is unrecovered, water consume is big, sewage needs to handle.The direct cooling tower of vaporation-type is by cigarette
Temperature degree is reduced to 250 DEG C hereinafter, can separate part bulky grain flue dust while cooled flue gas, but existing asks
Topic: sensible heat is unrecovered, the steam consumption is big.To meet the needs of 800 DEG C of obvious heat of smoke below recycling, converter gas need to be subjected to high temperature
Dedusting.
Domestic and international relatively good high-temperature dust removal technology has at present:
Metallic fiber chimney filter, metal sintering web filter etc. can satisfy the requirement of high-temperature dust removal, but expensive.
Rigid surface filter of ceramic filter, too cotton etc. also can satisfy the requirement of high-temperature dust removal, but have frangible, afraid of water
The problems such as, and it is expensive.
Cyclone dust collectors (including multi-tube dust cleaner etc.) are the high-temperature dust removal technologies of comparative maturity, are widely used in fluidizing
Industrial circles are waited in bed boiler, but are difficult to trap 5 μm of particles below, it is impossible to be used in atmosphere emission control.
Granular-bed filter (including rake granular-bed filter, cyclone type granular-bed filter, moving-bed type stratum granulosum mistake
Filter etc.), have many advantages, such as that resistant to high temperatures, shock resistance, filtrate are from a wealth of sources, but the research experience without being used for batch production,
Also it is not applied to the research experience of explosion hazard gases, and is difficult to trap fine particle, it is impossible to be used in atmosphere emission control.
Utility model content
In order to solve the problems, such as that existing dust-extraction unit cannot trap high temperature fine particle.The utility model provides a kind of shifting
Dynamic bed granular-bed filter, the moving granular bed filter can be filtered 600 DEG C~1000 DEG C of high-temperature flue gas, really
It protects and the particle as kindling material of big energy is not present in neat stress side.Further solve under batch production bring big flow
Big warm area cooling thermal impact, the impact of big concentration dust, explosion hazard gases aggregation the problems such as, long service life, filter efficiency are high.
The utility model solves that technical application used by its technical problem is novel to be: a kind of moving bed granular bed filter
Device, including the internal layer cylinder, middle cylinder and outer layer barrel being successively arranged from inside to outside, shape between internal layer cylinder and middle cylinder
At first annular cavity, filtering stratum granulosum is equipped in the first annular cavity, internal layer cylinder and middle cylinder are annular louver
Formula structure, internal layer cylinder contain the Internal baffle item that axially aligned more are obliquely installed, and middle cylinder contains axially aligned
The more outer baffle items being obliquely installed.
Internal layer cylinder, middle cylinder and outer layer barrel are upright state, are additionally provided with support frame in the first annular cavity
The lower part of frame, the moving granular bed filter is equipped with smoke inlet, and the top of the moving granular bed filter is equipped with
Exhanst gas outlet.
Internal cavity is equipped in internal layer cylinder, middle cylinder and outer layer barrel form the second toroidal cavity；Smoke inlet with should
Internal cavity connection, exhanst gas outlet are connected to second toroidal cavity；Alternatively, smoke inlet is connected to second toroidal cavity, cigarette
Gas outlet is connected to the internal cavity.
Braced frame contains the more root posts evenly distributed along the circumferential direction of middle cylinder, and the first annular cavity is by described more
Root post is separated to form multiple fan-shaped warehouses, and filtering stratum granulosum is located in the fan-shaped warehouse.
Column is externally provided with gusset, and Internal baffle item and outer baffle item are fixed with the link of boards, and it is cold that master is equipped in column
But it manages.
The inside of Internal baffle item is equipped with Internal baffle cooling tube, and the outside of outer baffle item is equipped with outer baffle cooling tube, Internal baffle
Cooling tube and outer baffle cooling tube are connected to main cooling tube.
The inclined direction of Internal baffle item and the inclined direction of outer baffle item are on the contrary, the longitudinal section of adjacent Internal baffle item and outer
Mirror image each other between the longitudinal section of apron strip, along direction from the top down, between adjacent Internal baffle item and outer baffle item away from
From being gradually reduced.
The moving granular bed filter further includes net particle storehouse and charging valve, and the lower part in net particle storehouse passes through charging pipe
Road is connected to the top of the first annular cavity, and charging valve is set on the charging hole.
The moving granular bed filter further includes dirty particle storehouse and blow-off valve, and the top in dirty particle storehouse passes through drainage conduit
Road is connected to the lower part of the first annular cavity, and blow-off valve is set in the drainage line.
Filtering stratum granulosum is quartz sand layer, aluminium oxide granule granulosa or steel ball layer.
The beneficial effects of the utility model are: removing most cigarettes of converter gas carrying at 800 DEG C~1000 DEG C
Dirt eliminates the hidden peril of explosion when recycling of subsequent convection type waste heat, alleviates the abrasion of subsequent convection type waste heat recycling heat-transfer surface.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
Fig. 1 is the use state diagram of moving granular bed filter described in the utility model.
Fig. 2 is the schematic diagram of moving granular bed filter.
Fig. 3 is the Longitudinal cross section schematic of internal layer cylinder and middle cylinder.
Fig. 4 is the cross-sectional view of internal layer cylinder and middle cylinder.
Fig. 5 is the schematic diagram of fan-shaped warehouse.
Fig. 6 is the connection schematic diagram of Internal baffle cooling tube and outer baffle cooling tube and main cooling tube.
1, internal layer cylinder；2, middle cylinder；3, outer layer barrel；4, stratum granulosum is filtered；5, braced frame；6, smoke inlet；
7, exhanst gas outlet；8, net particle storehouse；9, dirty particle storehouse；
11, Internal baffle item；12, Internal baffle cooling tube；
21, outer baffle item；22, outer baffle cooling tube；
31, moving granular bed filter；32, waste heat boiler；
51, column；52, main cooling tube.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of moving granular bed filter, including internal layer cylinder 1, the middle cylinder 2 and outer being successively arranged from inside to outside
Layer cylinder 3, forms first annular cavity between internal layer cylinder 1 and middle cylinder 2, filtering particle is equipped in the first annular cavity
Layer 4, internal layer cylinder 1 and middle cylinder 2 are the louvered structure of annular, and internal layer cylinder 1 contains more axially aligned inclinations
The Internal baffle item 11 of setting, middle cylinder 2 contains the axially aligned more outer baffle items 21 being obliquely installed, such as Fig. 1 to Fig. 3
It is shown.
In the present embodiment, internal layer cylinder 1, middle cylinder 2 and outer layer barrel 3 are upright state, in internal layer cylinder 1
The center line of heart line, the center line of middle cylinder 2 and outer layer barrel 3 is overlapped, and Internal baffle item 11 and outer baffle item 21 are annulus
Shape is additionally provided with braced frame 5 in the first annular cavity, and the lower part of the moving granular bed filter is equipped with smoke inlet 6,
The top of the moving granular bed filter is equipped with exhanst gas outlet 7.
In the present embodiment, filtering stratum granulosum 4 from top to bottom, flue gas can in into it is outgoing, also outside into it is interior go out.To guarantee not
Occur flue gas residence, flue gas can also with bottom in and top out or upper entering and lower leaving, can not under into it is lower go out, also can not it is enterprising it is upper go out, such as Fig. 1
To shown in Fig. 3.
In the present embodiment, internal cavity is equipped in internal layer cylinder 1, it is empty that middle cylinder 2 and outer layer barrel 3 form the second annular
Chamber；Smoke inlet 6 is connected to the internal cavity, and exhanst gas outlet 7 is connected to second toroidal cavity；Alternatively, smoke inlet 6 and this
The connection of second ring cavity, exhanst gas outlet 7 are connected to the internal cavity.
It is preferred that smoke inlet 6 is connected to the internal cavity, exhanst gas outlet 7 is connected to second toroidal cavity.When in use, dirty
Dye flue gas initially enters the internal cavity of internal layer cylinder 1 from smoke inlet 6, then by the filtering of filtering stratum granulosum 4, enters back into
Between the second toroidal cavity between cylinder 2 and outer layer barrel 3, filtered purifying smoke is discharged from exhanst gas outlet 7 again.
In the present embodiment, braced frame 5 contains the more root posts 51 evenly distributed along the circumferential direction of middle cylinder 2, internal layer
The weight of cylinder 1, middle cylinder 2 and outer layer barrel 3 can be undertaken by braced frame 5, and the first annular cavity is by described more
Root post 51 is separated to form multiple (such as 3 to 15) fan-shaped warehouse, and filtering stratum granulosum 4 is located in the fan-shaped warehouse, such as Fig. 4
With shown in Fig. 5.
In the present embodiment, 51 fixed sleeves of column are equipped with gusset, Internal baffle item 11 and outer baffle item 21 with the muscle
Plate is connected and fixed, and main cooling tube 52 is equipped in column 51.The inside of Internal baffle item 11 is equipped with Internal baffle cooling tube 12, outer baffle item
21 outside is equipped with outer baffle cooling tube 22, and Internal baffle cooling tube 12 and outer baffle cooling tube 22 are connected to main cooling tube 52,
As shown in Figure 6.
In the present embodiment, the inclined direction of Internal baffle item 11 is with the inclined direction of outer baffle item 21 on the contrary, left and right is adjacent
The longitudinal section of Internal baffle item 11 and the longitudinal section of outer baffle item 21 between mirror image each other, along direction from the top down, left and right phase
The distance between adjacent Internal baffle item 11 and outer baffle item 21 are gradually reduced, as shown in Figure 3.Two neighbouring Internal baffle items
The distance between 11 are greater than the diameter that particle is filtered in filtering stratum granulosum 4, between two neighbouring outer baffle items 21 away from
From the diameter for being greater than filtering particle in filtering stratum granulosum 4.
In the present embodiment, the moving granular bed filter 31 further includes net particle storehouse 8, charging valve, dirty particle storehouse 9
And blow-off valve, the lower part in net particle storehouse 8 are connected to by charging hole with the top of the first annular cavity, charging valve is set to this
On charging hole.The top in dirty particle storehouse 9 is connected to by drainage line with the lower part of the first annular cavity, and blow-off valve is set to
In the drainage line.Filtering stratum granulosum 4 can be quartz sand layer, aluminium oxide granule granulosa or steel ball layer.
In the present invention, the moving granular bed filter 31 is set in converter fume high-temperature section, it will be most
High-temperature dust separated with high-temperature flue gas, by explosion hazard gases enter explosive temperature range before with kindling material (high-temperature dust
Grain) separation, explosive danger was not only solved, but also reduce dust abrasion, and had made it possible that the waste heat of high-temperature flue gas recycled.
Biggish 4 total amount of filtering stratum granulosum is set, particle lamellar spacing is allow to collect the whole of primary smelting process generation
Flue dust.The method of operation of smoke catching discharge can be with as a result, are as follows: fixed-bed type high-temperature smoke traps under high-temperature flue gas state, low
Moving-bed type stratum granulosum carries dust discharge under warm smoke behavior.
In each indoor 4 upper entering and lower leaving of filtering stratum granulosum in fan-shaped storehouse.Fan-shaped warehouse realizes that area's internal granular layer can be complete
It is discharged from top to down entirely, also realizes the available effective cooling of the steel construction pieces such as louver baffle and braced frame.Interior cooling tube
Main pipe be set in braced frame, the branched pipe of interior cooling tube is set to the back side of louver baffle.Louver baffle and interior cooling
Pipe is close to, and braced frame is close to by gusset with interior cooling tube main pipe, by giving heat transfer to cooling medium in interior cooling tube, hundred
The steel construction pieces such as page baffle, braced frame are cooled down, and guarantee necessary intensity, rigidity.
Net particle storehouse and charging valve is arranged in top, and net particle storehouse, which has, pre-processes clean net particle, makees for charging
Industry.Blow-off valve and dirty particle storehouse is arranged in lower section.Dirty particle storehouse is for receiving the discharge of converter gas moving bed granular bed filter structure
Dirty particle.Dirty particle it is processed it is clean after be transported to net particle storehouse for being recycled.
The course of work of the moving granular bed filter is described below.
Converter is discharged high-temperature flue gas, flue gas pass sequentially through with radial pattern exchange heat based on gasification cooling flue (it is current at
Cooking technique), moving granular bed filter described in the utility model 31, the convection column tube evaporimeter (waste heat based on convection current
Boiler 32), smoke temperature decreases below 150 DEG C, as shown in Figure 1.
For ash-laden gas from converter mouth upwards through gasification cooling flue, about 800~1000 DEG C of temperature whens, enter the utility model
Moving granular bed filter 31, ash-laden gas enters from bottom to top in internal layer cylinder 1, and neat stress is by the outer of stratum granulosum structure
It draws on the top of layer cylinder 3.Internal layer cylinder 1, middle cylinder 2 and outer layer barrel 3
The moving granular bed filter 31 of the utility model mainly uses carbon steel material.The outer wall of outer layer barrel 3 is exhausted
Heating flue part, using interior spray refractory material.Interior annular louver baffle, exterior annular louver baffle, louver baffle support frame
Frame is all made of carbon steel material.The interior cooling tube of sheet with rib uses water cooling.The particle filtered in stratum granulosum 4 uses steel ball, partial size about 1
~2mm.Net particle storehouse, dirty particle storehouse are all made of carbon steel material, and dischargeable capacity is all larger than primary charging dosage.Charge valve, discharge
Valve is all made of star valve.Particle thickness between interior annular louver baffle, exterior annular louver baffle (filters stratum granulosum 4
Radial thickness) about 200mm~300mm.High-temperature flue gas outlet dust-laden is not higher than 5mg/Nm3, and high-temperature flue gas outlet particle is maximum
Partial size is not more than 5 μm.
The above, only specific embodiment of the utility model cannot limit the range that utility model is implemented, institute with it
With the displacement of its equivalent assemblies, or according to equivalent variations made by the utility model patent protection scope and modification, should all still fall within
The scope that this patent is covered.In addition, between technical characteristic and technical characteristic in the utility model, technical characteristic and technical application
Between novel, technical application it is novel it is novel with technical application between use can be freely combined.
Claims (10)
1. a kind of moving granular bed filter, which is characterized in that the moving granular bed filter include from inside to outside according to
The secondary internal layer cylinder (1) being arranged, middle cylinder (2) and outer layer barrel (3), form between internal layer cylinder (1) and middle cylinder (2)
First annular cavity, the first annular cavity is interior to be equipped with filtering stratum granulosum (4), and internal layer cylinder (1) and middle cylinder (2) are ring
The louvered structure of shape, internal layer cylinder (1) contain the axially aligned more Internal baffle items (11) being obliquely installed, middle cylinder
(2) contain the axially aligned more outer baffle items (21) being obliquely installed.
2. moving granular bed filter according to claim 1, which is characterized in that internal layer cylinder (1), middle cylinder
(2) and outer layer barrel (3) is upright state, is additionally provided in the first annular cavity braced frame (5), the moving bed particle
The lower part of layer filter is equipped with smoke inlet (6), and the top of the moving granular bed filter is equipped with exhanst gas outlet (7).
3. moving granular bed filter according to claim 2, which is characterized in that be equipped with interior sky in internal layer cylinder (1)
Chamber, middle cylinder (2) and outer layer barrel (3) form the second toroidal cavity；Smoke inlet (6) is connected to the internal cavity, and flue gas goes out
Mouth (7) is connected to second toroidal cavity；Alternatively, smoke inlet (6) is connected to second toroidal cavity, exhanst gas outlet (7) with
Internal cavity connection.
4. moving granular bed filter according to claim 2, which is characterized in that braced frame (5) contains along centre
The evenly distributed more root posts (51) of the circumferential direction of cylinder (2), the first annular cavity are separated to form by more root posts (51)
Multiple sector warehouses, filtering stratum granulosum (4) are located in the fan-shaped warehouse.
5. moving granular bed filter according to claim 4, which is characterized in that column (51) is externally provided with gusset, interior
Apron strip (11) and outer baffle item (21) are fixed with the link of boards, are equipped with main cooling tube (52) in column (51).
6. moving granular bed filter according to claim 5, which is characterized in that the inside of Internal baffle item (11) is equipped with
Internal baffle cooling tube (12), the outside of outer baffle item (21) are equipped with outer baffle cooling tube (22), Internal baffle cooling tube (12) and outside
Baffle cooling tube (22) is connected to main cooling tube (52).
7. moving granular bed filter according to claim 2, which is characterized in that the inclined direction of Internal baffle item (11)
Inclined direction with outer baffle item (21) is on the contrary, the longitudinal section of adjacent Internal baffle item (11) and the longitudinal section of outer baffle item (21)
Between mirror image each other, along direction from the top down, the distance between adjacent Internal baffle item (11) and outer baffle item (21) are gradually
Reduce.
8. moving granular bed filter according to claim 2, which is characterized in that the moving granular bed filter
It further include net particle storehouse (8) and charging valve, the lower part of net particle storehouse (8) passes through the top of charging hole and the first annular cavity
Connection, the charging valve are set on the charging hole.
9. moving granular bed filter according to claim 2, which is characterized in that the moving granular bed filter
It further include dirty particle storehouse (9) and blow-off valve, the top of dirty particle storehouse (9) passes through the lower part of drainage line and the first annular cavity
Connection, the blow-off valve are set in the drainage line.
10. moving granular bed filter according to claim 1, which is characterized in that filtering stratum granulosum (4) is quartz sand
Layer, aluminium oxide granule granulosa or steel ball layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822183158.3U CN209451525U (en) | 2018-12-25 | 2018-12-25 | A kind of moving granular bed filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822183158.3U CN209451525U (en) | 2018-12-25 | 2018-12-25 | A kind of moving granular bed filter |
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| Publication Number | Publication Date |
|---|---|
| CN209451525U true CN209451525U (en) | 2019-10-01 |
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ID=68041987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822183158.3U Active CN209451525U (en) | 2018-12-25 | 2018-12-25 | A kind of moving granular bed filter |
Country Status (1)
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| CN (1) | CN209451525U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499214A (en) * | 2018-12-25 | 2019-03-22 | 北京京诚科林环保科技有限公司 | A kind of moving granular bed filter |
-
2018
- 2018-12-25 CN CN201822183158.3U patent/CN209451525U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499214A (en) * | 2018-12-25 | 2019-03-22 | 北京京诚科林环保科技有限公司 | A kind of moving granular bed filter |
| CN109499214B (en) * | 2018-12-25 | 2024-03-26 | 北京京诚科林环保科技有限公司 | Moving bed particle layer filter |
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