CN105331394B - Mixed-flow moving bed coal gas of high temperature filtering and purifying and method - Google Patents
Mixed-flow moving bed coal gas of high temperature filtering and purifying and method Download PDFInfo
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- CN105331394B CN105331394B CN201510886273.5A CN201510886273A CN105331394B CN 105331394 B CN105331394 B CN 105331394B CN 201510886273 A CN201510886273 A CN 201510886273A CN 105331394 B CN105331394 B CN 105331394B
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Abstract
The invention discloses a kind of mixed-flow moving bed coal gas of high temperature filtering and purifying and methods, the device includes main body inner casing and main body cover, the inside of main body inner casing has first chamber, and main body inner casing is equipped with raw gas entrance, and first chamber is connected to by raw gas entrance with raw gas conveyance conduit；Main body cover is set in the outside of main body inner casing to form body lumen, filter material layer is filled in body lumen, first chamber and body lumen pass through the raw gas inlet communication being arranged on main body inner casing to form uniformly distributed raw gas channel, position on main body cover far from raw gas import is provided with purification gas exit, and body lumen is connected to by purification gas exit with purification gas pipeline to form uniformly distributed purification gas passage.The invention has the benefit that coal gas filter efficiency is high；Operating cost is low；The sensible heat loss of heating gas is small；Operation is continuous, filter effect is good；When charging, purified coal gas No leakage.
Description
Technical field
The present invention relates to gas purification technical fields, and in particular to a kind of mixed-flow moving bed coal gas of high temperature filtration, purification dress
It sets and method.
Background technique
Currently, the purification method of coal gas is broadly divided into both at home and abroad: the purification of fixed bed coal gas producer coal gas is using machine
Be cooled to 45 DEG C or less-electric precipitator-flutters drop device-user combined method to tool cyclone centrifugal separation-electric precipitator-indirectly.?
Contaminated wastewater environment is generated in purification process, expends the energy in cooling procedure, while the sensible heat of coal gas is washed off, some users
In order to improve the ignition temperature of kiln, a large amount of energy must be wasted, the cost of coal gas is improved again to heated by gas；
Fluidized bed coal gas producer decontamination procedure is: the coal gas of 800 DEG C to 900 DEG C of mechanical cyclone centrifugal separation-water washing be down to 45 DEG C-
Drop device-user is flutterred, energy waste is more significant, and about 40%, fluidized bed coal gas producer outlet dustiness is very big, in 20000mg/
m3More than, the waste water after washing contains a large amount of micro- carbon granules dust, can not handle, i.e. generation dust pollution, and it is dirty to generate waste water
Dye；There is the method with metal sintering net filtration coal gas studied, 600 DEG C of temperature below can only be adapted to, and expensive,
Running resistance is big, and operating cost is high, and the service life is short, and use scope is small, still uses at present without user；Some research in moving bed
Outside plate is covered with aperture or mesh-like, and intermediate course is filter material layer, and filtrate uses the quartz sand of smooth surface, leans on quartz sand particle
Between gap absorption retardance dust, aperture of the coal gas Jing Guo entire plate face, lateral penetration filtrate is filtered, when filtrate absorption micronic dust
Start to move down to a certain extent, rolling is loosened between filtering material particle, micronic dust is detached from filter material surface, and is at the impact of coal gas air-flow
In, coal gas carries that phenomenon is serious secretly again, and the purpose of high temperature coal gas purification is not achieved.
Summary of the invention
The object of the present invention is to provide a kind of mixed-flow moving bed coal gas of high temperature filtering and purifying and methods, are suitble to high temperature
The direct filtration, purification of coal gas, high-efficient, coal gas clean level is high, and gas pressure drop is small, and the decline of gas heat temperature is few, energy conservation effect
Fruit is significant.Waste water and fugitive dust are not generated, solves the problem of environmental pollution of gas purification generation, reduces the equipment of purification coal gas
Quantity, occupied area is small, and structure and simple process, small investment, effect is good, to overcome the above shortcomings in the prior art.
The purpose of the present invention is achieved through the following technical solutions:
A kind of mixed-flow moving bed coal gas of high temperature filtering and purifying, including main body inner casing and main body cover, in which:
The inside of the main body inner casing have first chamber, the main body inner casing be equipped with raw gas entrance, described first
Chamber is connected to by the raw gas entrance with raw gas conveyance conduit；
The main body cover is set in the outside of the main body inner casing to form body lumen, fills up in the body lumen
Have a filter material layer, the first chamber and the body lumen pass through the raw gas inlet communication that is arranged on the main body inner casing with
Uniformly distributed raw gas channel is formed, the position far from the raw gas import is provided with purification gas exit on the main body cover,
The body lumen is connected to by the purification gas exit with purification gas pipeline to form uniformly distributed purification gas passage.
Preferably, the top of the raw gas import is arranged in the purification gas exit.
Further, airscoop shroud and air leaving cover are fixed in the body lumen, the airscoop shroud and the air leaving cover are equal
The raw gas import is located at interior, the air leaving cover by the lower ending opening for the structure that middle part is arched upward upwards, the airscoop shroud
Side wall be equipped with and the opening that is connected to of purification gas exit.
Preferably, the filtrate is ashes or semicoke.
Further, the invention also includes the charging mechanisms that the body lumen top is arranged in, and are used for the main body
Interior intracavitary addition filtrate.
Further, the charging mechanism includes sealable opening/closing component after feed opening and at least two closures, described
The top of main body cover is equipped with the feed opening, and the body lumen is in communication with the outside by the feed opening, forms described add
The wall of material mouth is upwardly extended to form charging bucket, and the upper end opening of the charging bucket is filtrate entrance, all opening and closing groups
Part is mounted on the inner wall of the charging bucket, extraneous with connection/sealing body lumen.
Further, the quantity of the opening/closing component is two, between the opening/closing component and filtrate entrance on top
Region is level-one charging box, and the region between two opening/closing components is second level charging box.
Preferably, each described opening/closing component includes a sealing ring, a seal closure and a lever, the sealing ring
Outer rim is fixed on the inner wall of the charging bucket, and one end of the lever penetrates the charging bucket, and the seal closure is lifted on institute
The lower section that lever is located at one end of the charging bucket is stated, the other end of the lever is pierced by the charging bucket, and the lever
It is hinged on the charging bucket.
Further, the invention also includes power mechanism, the output end of the power mechanism drives the lever to be located at institute
State one end rotation of the outside of charging bucket.
Further, each described opening/closing component includes a sealing ring and a seal closure, the outer rim of the sealing ring
It is fixed on the inner wall of the charging bucket, the seal closure is pressed on the lower part of the sealing ring by elastic component.
The invention has the benefit that
1, coal gas air-flow three-dimensional space flows, and can uniformly be covered with the rank street area of filter material layer comprehensively, uniformly rises comprehensive
It is contacted with filtrate, filter efficiency is high.
2, filtrate is using clean ashes or half Jiaozhuo filtrate, using its irregular shape and surface with micropore
Micronic dust in Characteristic Adsorption coal gas.Coal gas filter efficiency is high, cheap.After filtrate discharger is external, micronic dust is firmly embedding
On ashes particle, fugitive dust is not generated, without dust pollution.Filtrate is ashes, can be used as brickmaking or cement raw material.Filtrate is
Semicoke, it can be directly used for gasified raw material, all recycle.
3, the sensible heat loss of heating gas is minimum, and gas temperature declines within 50 DEG C of ranges, reaches coal gas high-temperature purification
Purpose.Applicable 600-1000 DEG C gas purification below of the device passes through cooling than same chemical component using the coal gas
The coal gas of method purification, kiln temperature improve 200 DEG C -400 DEG C, and energy-saving effect is very significant, up to 30% or more energy conservation.
4, filtrate dust suction is close to after saturation, and entrainment dust gradually moves down, the coal gas air-flow for the rising that is staggered, the micronic dust in filtrate
It will not raise, the coal gas of purification cannot carry micronic dust secretly again.After device processing, dust content of gas can be down to coal gas
10mg/m3.The addition and exclusion of filtrate are kept in balance, and the height of filter material layer is always maintained at, to ensure that coal gas filtration, purification
Continuity, stabilised efficiency guarantees the clarity of coal gas.
5, at least two seal closure alternation switches that charging mechanism part is arranged along the length direction of charging bucket, so that charging
When remain body lumen seal, coal gas can only from purification gas exit output and cannot from charging entrance leakage.
Detailed description of the invention
Fig. 1 is mixed-flow downlink coal gas of high temperature filtering and purifying structure of the main view；
Fig. 2 is Fig. 1 partial cutaway schematic side view；
Fig. 3 is that Fig. 1 ladder cuts open schematic top plan view；
Fig. 4 is mixed-flow downlink coal gas of high temperature filtering and purifying circular configuration schematic front view；
Fig. 5 is the partial cutaway schematic side view of Fig. 4；
Fig. 6 is the A-A section view schematic top plan view of Fig. 4；
Fig. 7 is the B-B section view schematic top plan view of Fig. 4.
In figure: 1, filtrate entrance, 2, level-one charging box, 3, seal closure, 4, second level charging box, 5, lever, 6, main body inner casing,
7, main body cover, 8, filter material layer, 9, uniformly distributed purification gas passage, 10, coal gas header, 11, uniformly distributed raw gas channel, 12, net
Change gas exit, 13, discharging machine, 14, the outlet of ashes filtrate, 15, raw gas entrance.
Specific embodiment
Preferred embodiment
As shown in Fig. 1-Fig. 7, a kind of mixed-flow moving bed coal gas of high temperature filtering and purifying, including main body inner casing 6 and master
Body case 7, in which:
The inside of main body inner casing 6 has first chamber, and main body inner casing 6 is equipped with raw gas entrance 15, and first chamber passes through
Raw gas entrance 15 is connected to raw gas conveyance conduit；
Main body cover 7 is set in the outside of main body inner casing 6 to form body lumen, and filter material layer 8 is filled in body lumen,
First chamber and body lumen pass through the raw gas inlet communication being arranged on main body inner casing 6 to form uniformly distributed raw gas channel
11, the position on main body cover 7 far from raw gas import is provided with purification gas exit 12, and body lumen is gone out by purification coal gas
Mouth 12 is connected to purification gas pipeline to form uniformly distributed purification gas passage 9.
By cyclone separator treated coal gas of high temperature, enter in first chamber from raw gas entrance 15, then through equal
The raw gas channel 11 of cloth enters body lumen, and coal gas air-flow, which is covered with, covers opening for uniformly distributed 11 lower rectangular of raw gas channel
It is uniformly downwardly into filter material layer 8 after mouthful, then laterally flows in filter material layer 8 and is converged with the coal gas of the same incoming road of adjacent gas passage
It closes, is covered with the cross-sectional area of entire filter material layer 8, then the compositions such as the ashes being upward through in body lumen or semicoke filter material layer 8
Filter material layer 8, using the irregular shape and filtering material particle itself microporous properties in gap, filtering material particle between filtering material particle, filter,
The micronic dust in coal gas is adsorbed, obtains filtering purified coal gas, purified coal gas is from uniformly distributed uniformly distributed purification gas passage 9
Lower rectangular opening enters, and is discharged from the purification gas exit 12 being evenly arranged on main body cover 7, focuses on coal gas header
10, then user is output to by purification gas exit 12.
The top of raw gas import, raw gas uplink, conducive to filter material layer 8 to raw gas is arranged in purification gas exit 12
Sufficiently filtered.
Airscoop shroud and air leaving cover are fixed in body lumen, airscoop shroud and air leaving cover are the structure that middle part is arched upward upwards,
In raw gas import is located at by the lower ending opening of airscoop shroud, the side wall of air leaving cover is equipped with to be opened with what purification gas exit 12 was connected to
Mouthful.By the setting, it can prevent the micronic dust in filtrate or coal gas from blocking raw gas import and purification gas exit 12, guarantee coal gas
Smooth outflow.
Filtrate is ashes or semicoke.Filtrate utilizes its irregular shape using clean ashes or half Jiaozhuo filtrate
With surface with the micronic dust in the Characteristic Adsorption coal gas of micropore.Coal gas filter efficiency is high, cheap.Filtrate discharger is external
Afterwards, micronic dust is firmly embedded on ashes particle, does not generate fugitive dust, without dust pollution.Filtrate is ashes, can be used as brickmaking or
Cement raw material.Filtrate is semicoke, can be directly used for gasified raw material, all recycles
Due to, in use process, the adsorption capacity of filtrate itself can be reduced with the increase of itself adsorbed micronic dust,
So need into body lumen be added have complete adsorption capacity filtrate and by main cavity room adsorption capacity decline
The invention also includes the charging mechanism that body lumen top is arranged in and going out for the main body chamber lower portion is arranged in filtrate discharge
13 structure of material machine is respectively used to that filtrate is added into the body lumen and the filtrate of adsorption capacity decline is discharged.13 structure of discharging machine
The discharging machine 13 or discharge pipe that body lumen lower part is set and is connected to body lumen including one, the freedom of discharge pipe
End is ashes filtrate outlet 14, and the filtrate and ashes that adsorption capacity reduces or loses are through 14 discharge of ashes filtrate outlet to vacate sky
Between, the filtrate for having complete adsorption capacity is added.
Charging mechanism includes sealable opening/closing component after feed opening and at least two closures, and the top of main body cover 7 is set
There is feed opening, body lumen is in communication with the outside by feed opening, and the wall for forming feed opening is upwardly extended to form charging bucket, charging
The upper end opening of bucket is filtrate entrance 1, and all opening/closing components are mounted on the inner wall of charging bucket, in connection/sealed body
Chamber is extraneous, filtrate is added into charging bucket by feed opening, at least two opening/closing components are alternately opened, when guaranteeing that filtrate is added
It is isolated always between main body chamber and filtrate entrance 1, prevent purified coal gas can only be from purification from flowing out from feed opening
Gas exit 12 flows out.
The quantity of opening/closing component is two, and the region between the opening/closing component and filtrate entrance 1 on top is level-one charging box
2, the region between two opening/closing components is second level charging box.
A kind of structure of opening/closing component are as follows: each opening/closing component includes a sealing ring, a seal closure 3 and a lever 5,
The outer rim of sealing ring is fixed on the inner wall of charging bucket, and one end of lever 5 penetrates the charging bucket, and seal closure 3 is lifted on lever 5
Positioned at the lower section of one end of charging bucket, the other end of lever 5 is pierced by charging bucket, and lever 5 is hinged on charging bucket.Self weight shape
Under state, the setting of 5 weight of bronze drum lever is so that seal closure 3 is pressed on the lower part of sealing ring, when needing to open seal closure 3, to
The upper lever 5 that holds up is located at one end of charging bucket, removes the lower part that seal closure 3 after towing force is pressed on sealing ring again.
The opening of seal closure 3 can manually hold up lever 5, and a power mechanism also can be set, and make the output of power mechanism
End activation lever 5 is located at one end rotation of the outside of the charging bucket.
Another structure of opening/closing component are as follows: each opening/closing component includes a sealing ring and a seal closure 3, sealing ring
Outer rim be fixed on the inner wall of charging bucket, seal closure 3 is pressed on the lower part of sealing ring by elastic component.When inserting filtrate, filter
The weight of material pushes seal closure 3, draw springs, so that seal closure 3 moves downward, so that seal closure 3 is opened, filtrate falls,
When not having filtrate, seal closure 3 is pulled to the lower part of sealing ring by the elastic restoring force of elastic component, to realize automatic open close.
The device described in any of the above-described technical solution includes the following steps: to need to the method for coal gas filtration, purification
The coal gas to be purified access raw gas import, coal gas is successively through uniformly distributed raw gas channel, filter material layer and purification gas exit outflow.
Claims (6)
1. a kind of mixed-flow moving bed coal gas of high temperature filtering and purifying, which is characterized in that including main body inner casing and main body cover,
Wherein:
The inside of the main body inner casing has first chamber, and the main body inner casing is equipped with raw gas entrance, the first chamber
It is connected to by the raw gas entrance with raw gas conveyance conduit；
The main body cover is set in the outside of the main body inner casing to form body lumen, and filter is filled in the body lumen
The bed of material, the first chamber pass through the raw gas inlet communication being arranged on the main body inner casing with the body lumen to be formed
It is evenly distributed with raw gas channel, the position far from the raw gas import is provided with purification gas exit on the main body cover, described
Body lumen is connected to by the purification gas exit with purification gas pipeline to form uniformly distributed purification gas passage；
Airscoop shroud and air leaving cover are fixed in the body lumen, the airscoop shroud and the air leaving cover are that middle part is arched upward upwards
Structure, in the raw gas import is located at by the lower ending opening of the airscoop shroud, the side wall of the air leaving cover is equipped with and institute
State the opening of purification gas exit connection；
It further include the charging mechanism that the body lumen top is set, for filtrate to be added into the body lumen；
The charging mechanism includes sealable opening/closing component after feed opening and at least two closures, the top of the main body cover
Equipped with the feed opening, the body lumen is in communication with the outside by the feed opening, and the wall for forming the feed opening prolongs upwards
It stretches to form charging bucket, the upper end opening of the charging bucket is filtrate entrance, and all opening/closing components are mounted on described add
It is extraneous with connection/sealing body lumen on the inner wall of charging basket；
The quantity of the opening/closing component is two, and the region between the opening/closing component and filtrate entrance on top is level-one charging
Case, the region between two opening/closing components are second level charging box.
2. mixed-flow moving bed coal gas of high temperature filtering and purifying according to claim 1, which is characterized in that the purification
The top of the raw gas import is arranged in gas exit.
3. mixed-flow moving bed coal gas of high temperature filtering and purifying according to claim 1, which is characterized in that the filtrate
For ashes or semicoke.
4. mixed-flow moving bed coal gas of high temperature filtering and purifying according to claim 1, which is characterized in that each institute
Stating opening/closing component includes a sealing ring, a seal closure and a lever, and the outer rim of the sealing ring is fixed on the charging bucket
On inner wall, one end of the lever penetrates the charging bucket, and the seal closure is lifted on the lever and is located at the charging bucket
The lower section of one end, the other end of the lever is pierced by the charging bucket, and the lever is hinged on the charging bucket.
5. mixed-flow moving bed coal gas of high temperature filtering and purifying according to claim 1, which is characterized in that each institute
Stating opening/closing component includes a sealing ring and a seal closure, and the outer rim of the sealing ring is fixed on the inner wall of the charging bucket,
The seal closure is pressed on the lower part of the sealing ring by elastic component.
6. it is a kind of with device of any of claims 1-5 to the method for coal gas filtration, purification, which is characterized in that including
Following steps:
The coal gas for needing to purify is accessed into raw gas import, coal gas is successively through uniformly distributed raw gas channel, filter material layer and purification coal gas
Outlet outflow.
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| CN105331394B true CN105331394B (en) | 2019-01-29 |
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