CN207307509U - Gas filter plant - Google Patents
Gas filter plant Download PDFInfo
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- CN207307509U CN207307509U CN201721122901.3U CN201721122901U CN207307509U CN 207307509 U CN207307509 U CN 207307509U CN 201721122901 U CN201721122901 U CN 201721122901U CN 207307509 U CN207307509 U CN 207307509U
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- gas
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- dust
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Abstract
The utility model discloses gas filtration method and gas filter plant.The targeted gas to be filtered of the gas filter plant is the gas that produces during mill milling, the flue gas produced in the gas containing high-adhesiveness dust, steam and lubrication oil firing, the equipment includes filter and blowback component, and the mixer for adding component powder and making the modified powder and the gas mixing to be filtered of modified powder is added in further including toward the gas to be filtered；Described plus component powder includes sequentially connected lock hopper and batcher；The mixer includes the slanted channel for entering the axial passage for the axial passage of the gas flowing to be filtered and for the modified powder.The utility model structure is very simple, passes through the gas to be filtered being passed through modified powder in flowing so that modified powder carries flowing by the gas to be filtered, and in flow process, modified powder adsorbs high-adhesiveness dust and steam in the gas to be filtered.
Description
Technical field
The technical field of the filtering of gas caused by mill milling is the utility model is related to, in particular to gas
Filter method and gas filter plant.
Background technology
When carrying out dust removal by filtration to the industrial gasses containing high viscosity dust, the liquid that condensed, dust and the liquid that condensed
Pole plate will be adhered to, cartridge surface forms sticky filter dust layer.Dust layer is removed in the filtering techniques such as existing electric precipitation, cloth bag
Generally using rapping, blowback the methods of, these methods are very notable for low viscosity dust layer effect, can keep filter differential pressure
Stablize.But for sticky dust layer almost without effect, most cause at last between filter core or the full dust of product between electrode, formed
Dust bridge phenomenon.
Chinese utility model patent CN106178739A discloses a kind of horizontally loaded type hot precipitator, which adds powder
Device can add powder to form bisque in cartridge surface in advance before filtration, and the buffer action of the bisque can slow down filter core blocking.
But due to not improving the mobility of gas to be filtered inherently, paste bag is still easily formed on bisque surface
Phenomenon, meanwhile, high-adhesiveness dust and/or the liquid that condensed in gas to be filtered can also pass through bisque, cause filter core
Internal void is blocked.
Chinese utility model patent CN105749679A discloses a kind of high temperature fume dust removal method, and this method passes through in mistake
Flue gas can be reduced with the modulator (diatomite, lime or flyash) of chemisorbed sulfur trioxide by being passed through in the forward direction flue gas of filter
Viscosity.First, the modulator after chemisorbed is difficult to secondary use；Secondly, the flue gas containing steam and sulfur trioxide can also
Modulator is caused to corrode, further lifts the viscosity of flue gas；Meanwhile the gas that the flue gas is glass furnace discharge, and this reality
Produced during being mill milling with the targeted gas to be filtered of new gas filtration method and gas filter plant
Gas, both composition and property it is entirely different and application field it is far apart.
Utility model content
The main purpose of the utility model is that gas filtration method and gas filter plant are provided, to solve existing skill
The difficult filtration problem of the gas produced present in art during mill milling.
To achieve these goals, a kind of one side according to the present utility model, there is provided gas filtration method.The gas
The targeted gas to be filtered of body filter method is the gas that produces during mill milling, contains high-adhesiveness powder in the gas
The flue gas that dirt, steam and lubrication oil firing produce, the described method comprises the following steps：
1) modified powder is added in the gas to be filtered, which is mutually bonded and inhales with the high-adhesiveness dust
The steam is received, obtains modified gas；
2) modified gas are filtered at a temperature of higher than the close dew temperature of the steam.
First, modified powder can be attached to the surface of high-adhesiveness dust, not only reduce the viscosity of dust, prevent filter core from blocking up
Fill in and prevent high-adhesiveness dust to be mutually bonded in cartridge surface and cause paste bag, and add the grain of high-adhesiveness dust
Degree, lifts the interception rate of filter core.Secondly, modified powder can absorb steam, prevent steam to be mutually bonded with high-adhesiveness dust, into
One step prevents paste bag and blocks filter core.Furthermore modified powder adsorbs high-adhesiveness dust and steam at the same time, largely improves
The mobility of gas to be filtered, lifts the speed of filtering.The gas filtration method of the utility model can efficiently separate milling train
Various components in the gas produced in the operation of rolling, filter efficiency are high.The utility model also can apply to other viscous containing height
The dedusting of the gas of attached property dust and/or the liquid that condensed.
Further, the modified powder is cellular and its porosity >=30%, is contained in every cubic metre of modified gas
There is 5~60g to be modified powder.Thus, when modified powder has above-mentioned porosity and content, it is ensured that economy and absorption are imitated
Fruit.
Further, flowing velocity >=15m/s of the gas to be filtered；The granularity of the modified powder is 200~500
Mesh.Thus, the excellent rate of filtration is not only ensured, moreover it is possible to ensure that the gas to be filtered with the flowing velocity can carry modification
Powder flows.The granularity of modified powder is excessive, and not only specific surface area is low, adsorption energy force difference, and is not easy to be carried flowing；Modified powder
Undersized, then surface energy is excessive, easily mutually reunites, and utilization rate reduces.
Further, adhesion strength >=500Pa of the high-adhesiveness dust；Thus, to containing under special rolled operating mode
The gas for having high-adhesiveness dust can adapt to.
Further, the modified powder is calcium oxide and/or activated carbon；The high-adhesiveness dust include iron hydroxide,
It is any several in frerrous chloride and iron oxide.Thus, physical absorption occurs between modified powder and high-adhesiveness dust, easy to height
The recycling of adhesive dust, is highly suitable for gas caused by mill milling steel product.
To achieve these goals, other side according to the present utility model, additionally provides a kind of gas filter plant,
The targeted gas to be filtered of the gas filter plant is the gas that produces during mill milling, contains high adhesion in the gas
Property the flue gas that produces of dust, steam and lubrication oil firing, the equipment includes filter and blowback component, further includes and is treated described in
The mixer for adding component powder and making the modified powder and the gas mixing to be filtered of modified powder is added in filtering gas；It is described
Component powder is added to include sequentially connected lock hopper and batcher；The mixer includes leading to for the axial direction of the gas flowing to be filtered
Road and the slanted channel for entering the axial passage for the modified powder.
The structure of the gas filter plant of the utility model is very simple, the hybrid mode letter of gas to be filtered and modified powder
It is single, pass through the gas to be filtered modified powder being passed through in flowing so that modified powder carries flowing by the gas to be filtered, is flowing
During dynamic, modified powder adsorbs high-adhesiveness dust and steam in the gas to be filtered.
Further, the batcher is spiral ash machine.Thus, easy to controlling the input quantity of modified powder.
Further, the modified powder is calcium oxide and/or activated carbon；The high-adhesiveness dust include iron hydroxide,
It is any several in frerrous chloride and iron oxide.Thus, physical absorption occurs between modified powder and high-adhesiveness dust, easy to height
The recycling of adhesive dust, is highly suitable for gas caused by mill milling steel product.
Further, be equipped with the axial passage by the axial passage be divided into upper channel and lower channel every
Plate.When modified powder excess or larger granularity, partially modified powder can be caused to carry flowing by gas to be filtered and be deposited in
The bottom of the axial passage, when the modification powder content of the bottom deposit of the axial passage is excessive, was treated seriously affecting
The flow of air filtration body.By the way that the axial passage is divided into upper channel and lower channel, gas distribution to be filtered can be made, it is ensured that
Can circulate the gas to be filtered all the time in lower channel, meanwhile, the modification powder deposited on partition plate can be slowly to be filtered
Walked entrained by gas.
Further, the center of the partition plate is intersected with the extended line of the central shaft of the slanted channel；The partition plate
Length is 0.3-0.6m.Thus, it is ensured that the flow resistance of gas to be filtered is small and can deposit more modification powder.
Further, the angle between the flow direction of the central shaft of the slanted channel and the gas to be filtered is blunt
Angle.Thus, when modified powder enters axial passage, modified powder still has the velocity component towards filter movement, easy to modified powder
Entrained by gas to be filtered.
Further, housing of the filter with insulating layer and/or the filter is with for thermal insulation medium flowing
Hollow structure.Thus, prevent gas to be filtered from condensing into steam in the filter.
As it can be seen that the technique of the gas filtration method of the utility model is simple, used modified powder adsorbs high adhesion at the same time
Property dust and steam, while the speed of the mobility of gas to be filtered and lifting filtering is improved, can efficiently separate and roll
Various components in the gas produced in the machine operation of rolling, filter efficiency is high and high-adhesiveness dust is easy to recycling.This reality
Very simple with the structure of new gas filter plant, the hybrid mode of gas to be filtered and modified powder is simple.
The utility model is described further with reference to the accompanying drawings and detailed description.What the utility model added
Aspect and advantage will be set forth in part in the description, and partly will become apparent from the description below, or pass through this practicality
New practice is recognized.
Brief description of the drawings
The attached drawing for forming the part of the utility model is used for aiding in understanding to the utility model, provided in attached drawing
Content and its related explanation in the utility model can be used for explaining the utility model, but not form to the utility model not
Work as restriction.In the accompanying drawings：
Fig. 1 is the structure diagram of the gas filter plant of the utility model.
Fig. 2 is the axial sectional view of the mixer of the gas filter plant of the utility model.
Fig. 3 is the sectional view along A-A of Fig. 2.
Related mark in above-mentioned attached drawing for：
1：Lock hopper；
2：Batcher；
3：Mixer；
31：Axial passage；
32：Slanted channel；
33：Partition plate；
4：Filter；
5：Heat gas bag；
6：Controller；
7：First pressure sensor；
8：Second pressure sensor；
9：Heater；
10：Insulating layer；
11：Valve.
Embodiment
Clear, complete explanation is carried out to the utility model below in conjunction with the accompanying drawings.Those of ordinary skill in the art based on
The utility model can be realized in the case of these explanations.It is before being illustrated with reference to attached drawing to the utility model, it is necessary to special
It is not pointed out that：
Technical solution and technical characteristic in the utility model provided in each several part including the description below,
In the case of not conflicting, these technical solutions and technical characteristic can be mutually combined.
In addition, involved in the description below to the utility model embodiment be generally only one branch of the utility model reality
Example is applied, instead of all the embodiments.Therefore, do not had based on the embodiment in the utility model, those of ordinary skill in the art
All other embodiments obtained on the premise of creative work are made, should all belong to the model of the utility model protection
Enclose.
On term in the utility model and unit.The specification and claims of the utility model and related part
In term " comprising ", " having " and their any deformation, it is intended that cover non-exclusive include.Term " adhesiveness "
Refer to the phenomenon being attached to each other between particle and particle.When term " adhesion strength " refers to particle with particle close contact, contacting
The tensile strength of the vertical direction on face interface perspective plane.
Equipment described in the gas filter plant of the utility model embodiment includes filter 4, blowback component, toward treating
The mixer 3 for adding component powder and making the modified powder and the gas mixing to be filtered of modified powder is added in filtering gas；
Described plus component powder includes sequentially connected lock hopper 1 and batcher 2；The batcher 2 is spiral ash machine.
The mixer 3 is included for the axial passage 31 of the gas flowing to be filtered and for described in the modified powder entrance
The slanted channel 32 of axial passage 31.
The partition plate 33 that the axial passage 31 is divided into upper channel and lower channel is equipped with the axial passage 31.
Intersect with the extended line of the central shaft of the slanted channel 32 at the center of the partition plate 33；The length of the partition plate 33
For 0.5m.
Angle between the flow direction of the central shaft of the slanted channel 32 and the gas to be filtered is obtuse angle.
The filter 4 has insulating layer 10, while the housing of the filter 4 has for the hollow of thermal insulation medium flowing
Structure, the thermal insulation medium are heat tracing gas.
The blowback component includes the heating gas bag 5 heated to blowback high pressure gas, and the heating gas bag 5 has first
Gas outlet and the second gas outlet, first gas outlet are turned on the air inlet of the filter 4, for preheating filter 4, institute
The gas outlet that the second gas outlet is stated with the filter 4 turns on, the filter core for the blowback filter 4.
Further include the chain control mechanism for controlling the valve 11 on second gas outlet to close, the chain control mechanism
The first pressure sensor 7 of admission pressure including the test filter 4, the second pressure of the test filter outlet pressure
Force snesor 8 and controller 9, the controller 9 is according to the test result of first pressure sensor 7 and second pressure sensor 8
To control the closure of the valve 11.
The heater 9 to 1 inlet air heating of lock hopper is further included, to prevent the modification powder of low temperature from entering in gas to be filtered
Cause condensation.
Each pipeline of the gas filter plant is respectively provided with insulating layer 11.
1-9 illustrates the beneficial effect of the utility model gas filtration method, the gas of embodiment 1-9 by the following examples
Body filter method applies above-mentioned gas filter plant, and comprises the following steps：
1) the modification powder in lock hopper 1 is pressed into by the spiral ash machine by the pressure for the gas that pressurizes, then spiral transferring ash
Machine quantitatively toward being passed through the modified powder in the axial passage 31, modified powder in axial passage 31 with gas mixing to be filtered
Modified gas are obtained, the modification powder in the modified gas is mutually bonded with the high-adhesiveness dust and absorbs the steam, changes
Property powder addition calculate according to being modified powder containing 5~60g in modified gas every cubic metre described；
2) modified gas are filtered at a temperature of higher than the close dew temperature of the steam.
The modified powder is cellular and its porosity >=30%.
Flowing velocity >=15m/s of the gas to be filtered.
The granularity of the modified powder is 200~500 mesh.
The gas to be filtered is the gas that produces during mill milling, contains high-adhesiveness dust, water in the gas
The flue gas that vapour and lubrication oil firing produce, the high-adhesiveness dust include iron hydroxide, frerrous chloride and iron oxide, the height
Adhesion strength >=500Pa of adhesive dust；The modified powder is activated carbon.
The specific parameter of embodiment 1-5 is shown in Table 1.
Table 1 is the technological parameter of embodiment 1-5.
Empirical tests, when containing 5~60g in every cubic metre of modified gas and being modified powder, the frequency of blowback is relatively low and mistake
Filtering velocity degree is fast.When the modification powder addition in every cubic metre of modified gas is more than 60g, the modified powder of a part can be deposited on
On partition plate, the flowing to modified gas causes certain resistance, have impact on the rate of filtration of filter to a certain extent.When
When modification powder addition in every cubic metre of modified gas is less than 5g, can because of the high-adhesiveness dust in gas to be filtered and
Steam cannot be efficiently absorbed and cause blowback frequency to raise.
The specific parameter of embodiment 6-9 is shown in Table 2.
Table 2 is the technological parameter of embodiment 6-9.
Empirical tests, when the granularity of the modified powder is 200~500 mesh, blowback frequency is low and gas to be filtered can be taken
The modified powder of band flows and flowing velocity is fast.When the granularity of the modified powder is more than 500 mesh, since the size of modified powder is smaller,
Agglomeration can occur and reduce specific surface area, therefore blowback frequency does not reduce further because of the reduction of modified powder size.
When the granularity of the modified powder is less than 200 mesh, since the size of modified powder is larger, purge gas is difficult to carry modified powder stream
It is dynamic, cause modified powder to be difficult to give full play to suction-operated, cause blowback frequency to raise；Simultaneously as larger-size modified powder
It is deposited on partition plate, the flowing to modified gas causes certain resistance, reduces the rate of filtration.
The related content of the utility model is illustrated above.Those of ordinary skill in the art are based on these explanations
In the case of can realize the utility model.The above based on the utility model, those of ordinary skill in the art are not having
All other embodiments obtained on the premise of creative work are made, should all belong to the model of the utility model protection
Enclose.
Claims (6)
1. gas filter plant, gas to be filtered is the gas produced during mill milling, contains high-adhesiveness in the gas
The flue gas that dust, steam and lubrication oil firing produce, the equipment include filter (4) and blowback component, it is characterised in that：Also
Including toward add modified powder in the gas to be filtered plus component powder and making the modified powder and the gas mixing to be filtered
Mixer (3)；Described plus component powder includes sequentially connected lock hopper (1) and batcher (2)；The mixer (3) includes supplying
The axial passage (31) of the gas flowing to be filtered and the slanted channel for entering the axial passage (31) for the modified powder
(32)。
2. gas filter plant as claimed in claim 1, it is characterised in that：The batcher (2) is spiral ash machine；It is described
Modified powder is calcium oxide and/or activated carbon；The high-adhesiveness dust includes appointing in iron hydroxide, frerrous chloride and iron oxide
Anticipate several.
3. gas filter plant as claimed in claim 1, it is characterised in that：It is equipped with the axial passage (31) by described in
Axial passage (31) is divided into the partition plate (33) of upper channel and lower channel.
4. gas filter plant as claimed in claim 3, it is characterised in that：The center of the partition plate (33) with it is described oblique logical
The extended line of the central shaft in road (32) intersects；The length of the partition plate (33) is 0.3-0.6m.
5. gas filter plant as claimed in claim 1, it is characterised in that：The central shaft of the slanted channel (32) with it is described
Angle between the flow direction of gas to be filtered is obtuse angle.
6. gas filter plant as claimed in claim 1, it is characterised in that：The filter (4) have insulating layer (10) and/
Or the housing of the filter (4) has the hollow structure for thermal insulation medium flowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721122901.3U CN207307509U (en) | 2017-09-04 | 2017-09-04 | Gas filter plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721122901.3U CN207307509U (en) | 2017-09-04 | 2017-09-04 | Gas filter plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207307509U true CN207307509U (en) | 2018-05-04 |
Family
ID=62385383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721122901.3U Active CN207307509U (en) | 2017-09-04 | 2017-09-04 | Gas filter plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207307509U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497228A (en) * | 2017-09-04 | 2017-12-22 | 成都易态科技有限公司 | Gas filtration method and gas filter plant |
| CN110906155A (en) * | 2019-12-13 | 2020-03-24 | 四川德胜集团钒钛有限公司 | Lubricating grease heating device for rolling mill guide |
-
2017
- 2017-09-04 CN CN201721122901.3U patent/CN207307509U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497228A (en) * | 2017-09-04 | 2017-12-22 | 成都易态科技有限公司 | Gas filtration method and gas filter plant |
| CN110906155A (en) * | 2019-12-13 | 2020-03-24 | 四川德胜集团钒钛有限公司 | Lubricating grease heating device for rolling mill guide |
| CN110906155B (en) * | 2019-12-13 | 2021-02-19 | 四川德胜集团钒钛有限公司 | Lubricating grease heating device for rolling mill guide |
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