CN210993567U - Environmental dust removal system for steel slag hot stewing pool - Google Patents
Environmental dust removal system for steel slag hot stewing pool Download PDFInfo
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- CN210993567U CN210993567U CN201921990783.7U CN201921990783U CN210993567U CN 210993567 U CN210993567 U CN 210993567U CN 201921990783 U CN201921990783 U CN 201921990783U CN 210993567 U CN210993567 U CN 210993567U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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Abstract
The utility model discloses an environment dust pelletizing system for steel slag heat smoldering pond for high temperature steel slag removes dust in the heat smoldering pond, include: the device comprises two parallel rails, a movable cover vehicle, a dust suction main pipe, a dust suction branch pipe and a dust suction main pipe, wherein the two parallel rails are respectively positioned at two sides of a heat stewing pool; the utility model discloses a set up the track and form a semi-enclosed cavity with removing the cover car and mutually support for the dust that the hot smoldering pond produced is collected in removing the cover car, and then the dust gets into under the negative pressure of exhaust fan and absorbs branch pipe, dust absorption main pipe and purify the back through the dust remover and discharge in the atmosphere, reach the new emission standard of country.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to steelmaking production field especially relates to an environment dust pelletizing system that is used for slag heat to stew pond.
[ background of the invention ]
The purpose of the steel slag treatment is to finish the cooling, pulverization and magnetic separation of high-temperature liquid steel slag generated in the steel-making (converter and electric furnace) process. The mainstream process for treating the steel slag of domestic iron and steel enterprises comprises the following steps: the hot splashing method, the hot stewing pool method, the rolling hot stewing method, the roller method and the air quenching method are low in investment, simple to maintain and low in operating cost, and are favored by most iron and steel enterprises. In the process of treating the steel slag by the hot stewing pool method, the steel slag is loaded, slag is removed, water is pumped, a large amount of dust is generated, the dust treatment difficulty is high due to the characteristic of station layout of the hot stewing pool method, and at present, domestic steel enterprises using the hot stewing pool method do not carry out dust treatment on the link, so that the problem that the working environment of the link is severe, the dust pollution is serious, and the hot stewing pool method is the biggest scaling problem in treating the steel slag. With the release of new national environmental protection regulations, the unorganized emission standard is 8 mg/cubic meter, and how to treat dust in the hot-stewing slag process and reach the ultralow emission standard released by the national ministry of environmental protection is an important difficulty facing domestic iron and steel enterprises.
[ Utility model ] content
The utility model aims at providing an environment dust pelletizing system for steel slag hot braising pond to solve the problem that current hot braising pond dust can't be handled.
The utility model adopts the following technical scheme: an environmental dust removal system for a steel slag hot stewing pool is used for removing dust of high-temperature steel slag in the hot stewing pool, and comprises:
two parallel tracks are respectively positioned at two sides of the thermal stewing pool,
a movable hood vehicle which is positioned above the tracks, is communicated with an external exhaust fan through a pipeline, is in a hammer shape with a small top and a big bottom, the left side and the right side of the movable hood vehicle are respectively connected with the two tracks in a sliding way, the bottom of the movable hood vehicle is not closed, and is butted with an upper opening of the heat stewing pool so as to form a cavity between the heat stewing pool and the movable hood vehicle,
a dust absorption dry pipe which is horizontally arranged and is positioned at any side of the thermal stewing pool and is arranged in parallel with the track,
a dust absorption branch pipe which is horizontally and vertically arranged on the dust absorption main pipe, is communicated with the dust absorption main pipe and is arranged towards the heat stewing pool, the free end of the dust absorption branch pipe extends into the movable cover vehicle,
the track is used for moving the cover vehicle to move back and forth, dust generated in the hot stewing pond of the movable cover vehicle rises along the cavity and is collected in the inner cavity of the movable cover vehicle, and the exhaust fan is used for generating negative pressure to suck the dust in the inner cavity of the movable cover vehicle out through the dust suction branch pipe and the dust suction main pipe.
Furthermore, a plurality of hot stewing ponds are arranged in a straight line shape, and two parallel rails are positioned on two sides of the straight line shape.
Furthermore, a slag pouring port is formed in one side, close to the dust absorption branch pipe, of the movable cover vehicle, the slag pouring port is used for pouring steel slag into a cavity formed by the movable cover vehicle and the thermal stewing pool below the movable cover vehicle, and the dust absorption branch pipe extends into the movable cover vehicle through the slag pouring port.
Further, an external exhaust fan is communicated to the dust remover through a pipeline, and the dust remover is used for purifying dust.
Furthermore, a plurality of water mist nozzles are installed at the top of the inner side of the movable cover vehicle, and each water mist nozzle is used for spraying water mist to perform dust fall.
Furthermore, each dust suction branch pipe is provided with an electric butterfly valve.
The utility model has the advantages that: the utility model discloses a set up the track and form a semi-enclosed cavity with removing the cover car and mutually support for the dust that the hot braising pond produced is collected in removing the cover car, and then the dust gets into the absorption branch pipe under the negative pressure effect of exhaust fan, and then discharges through the dust absorption main pipe, purifies the back through the dust remover and discharges in the atmosphere, the utility model discloses can effectual control the produced dust of hot braising pond method to reach the new emission standard of country, technological maturity is reliable, convenient to use, running cost low, pollution-free characteristics, can satisfy the demand that iron and steel enterprise's environment was administered.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of the present invention.
Wherein: 1. a track; 2. moving the cover vehicle; 3. a dust collection main pipe; 4. a dust collection branch pipe; 5. a thermal stewing pool; 6. an exhaust fan; 7. and a slag pouring port.
[ detailed description ] embodiments
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model discloses an environment dust pelletizing system for steel slag heat braising pond, a high temperature steel slag removes dust in 5 to heat braising pond, as shown in figure 1, track 1 including two parallels, track 1 of two parallels is located the both sides of heat braising pond 5 respectively, track 1 top of two parallels is provided with one and removes cover car 2, track 1 is used for removing cover car 2 and reciprocates, remove cover car 2 and be the big hammer-shaped body down, it is linked together through pipeline and outside exhaust fan 6 to remove cover car 2, the left and right sides that removes cover car 2 do not with two track 1 mutual sliding connection, the bottom that removes cover car 2 is not sealed, and connect mutually with the upper portion opening of heat braising pond 5 and make to have formed a cavity between heat braising pond 5 and the removal cover car 2, make the dust collection of heat braising pond 5 production in removing cover car 2.
Any side of the hot stewing pond 5 is provided with a dust absorption main pipe 3, the dust absorption main pipe 3 is horizontally arranged, the dust absorption main pipe 3 is arranged in a parallel track 1, the dust absorption main pipe 3 is horizontally and vertically provided with a plurality of dust absorption branch pipes 4, each dust absorption branch pipe 4 corresponds to one hot stewing pond 5, the dust absorption branch pipes 4 are communicated with the dust absorption main pipe 3, the dust absorption branch pipes 4 are arranged towards the hot stewing pond 5, the free ends of the dust absorption branch pipes 4 extend into the movable hood truck 2, and the exhaust fan 6 is used for generating negative pressure to suck out dust in the inner cavity of the movable hood truck 2 through the dust absorption branch pipes 4 and the dust absorption main pipe 3.
The rail 1 is arranged to ensure that the movable cover vehicle 2 can move back and forth along the rail 1, and then the hot stewing pond 5 is selected to pour slag, so that the hot stewing ponds 5 are arranged in a straight line shape, and the two parallel rails 1 are positioned on two sides of the straight line shape. Therefore, the movable hood can be guaranteed to move back and forth between each thermal stewing pool 5, because each thermal stewing pool 5 is consistent in size and is located between the two rails 1, when the movable hood truck 2 moves to the position above any thermal stewing pool 5, a cavity can be formed by the movable hood truck and the thermal stewing pool 5, and dust generated in the thermal stewing pool 5 rises to enter the inner cavity of the movable hood truck 2 through the top of the thermal stewing pool 5 and is sucked out by the exhaust fan 6 through negative pressure.
A slag pouring opening 7 is formed in one side, close to the dust collection branch pipe 4, of the movable cover vehicle 2, the dust collection branch pipe 4 is located at the position corresponding to the slag pouring opening 7, the slag pouring opening 7 is used for pouring steel slag into a cavity formed by the movable cover vehicle 2 and the thermal stewing pool 5 below the movable cover vehicle, and the dust collection branch pipe 4 extends into the movable cover vehicle 2 through the slag pouring opening 7 and discharges dust generated by the thermal stewing pool 5. The movable cover vehicle 2 can be moved to the position above the hot stewing pool 5 through the slag pouring port 7, then slag pouring is carried out through the slag pouring port 7, if the slag pouring port 7 is not arranged, the rolled steel slag needs to be poured into the hot stewing pool 5 firstly, then the movable cover vehicle 2 is moved to the position above the hot stewing pool 5 filled with the steel slag, therefore, part of dust cannot be sucked away by the exhaust fan 6 in the period of time when the steel slag is poured into the hot stewing pool 5 and the movable cover vehicle 2 reaches the position above the hot stewing pool 5, pollution can be caused, the problem can be avoided by arranging the slag pouring port 7, all the dust can be sucked away by the exhaust fan 6 through the dust suction branch pipes 4 and the dust suction main pipe 3, and the dust removal effect is ensured.
The external exhaust fan 6 is communicated to a dust remover which is used for purifying dust. The dust that is inhaled away by exhaust fan 6 can't directly discharge in the atmosphere, can cause the pollution of environment, consequently, can purify the dust through the dust remover, make the particle in the dust remove dust by the dust remover, the dust remover adopts negative pressure formula, the dust remover advances to adopt bag collector, exhaust fan 6 adopts centrifugal fan, the bag collector filter material adopts tectorial membrane dacron acupuncture felt, remove 2 inboard tops of dustcoat car and install a plurality of water smoke shower nozzles, each water smoke shower nozzle is used for vertical spraying water smoke to carry out the dust fall.
The utility model discloses handle the slag in-process slag and pack into, take off sediment and beat water ring festival and produce a large amount of dusts and adopt and remove cover car 2 and collect, with bag collector centralized processing dust and discharge up to standard, the dust of collecting through sack surface filter falls into the ash bucket through pulse jetting compressed air regeneration, regularly unload by the ash bucket, wherein remove cover car 2 and combine hot braising pond 5 technology, and remove 2 tops of cover car and install the water smoke shower nozzle additional, realize that the slag is packed into, automatic water fetching, the artificial current situation of fetching water of this link has been changed, the elegant of dust has been suppressed, and realized the collection of dust, the ultralow emission of the flue gas that reaches.
Every dust absorption branch pipe 4 corresponds a heat smoldering pond 5, install electric butterfly valve on every dust absorption branch pipe 4, when a heat smoldering pond 5 when removing dust work, will remove the cover car 2 and remove to this heat smoldering pond 5 top, form a semi-enclosed cavity, then open the electric butterfly valve on the dust absorption branch pipe 4 that corresponds with this heat smoldering pond 5, and close the electric butterfly valve on other dust absorption branch pipes 4, avoid getting into the dust absorption main pipe 3 from this dust absorption branch pipe 4 and discharge through other dust absorption branch pipes 4, and can furthest practice thrift the amount of wind, guarantee that the pressure of the dust absorption branch pipe 4 that is removing dust is enough, and guarantee the effect of removing dust. After the slag pouring, water pumping and slag removing operation is finished, the exhaust fan 6 runs at low frequency, so that the energy-saving effect is achieved.
The utility model discloses a dust removal method comprises following steps:
the movable cover vehicle 2 is moved to the upper part of the vacant heat stewing pool 5 through the track 1, so that the bottom of the movable cover vehicle 2 is butted with the upper opening of the heat stewing pool 5 to form a cavity,
pouring high-temperature steel slag into the cavity through the slag pouring port 7 of the movable cover vehicle 2,
an external exhaust fan 6 is started to convey the dust to the dust remover through the dust absorption branch pipe 4 and the dust absorption main pipe 3 in turn,
and (4) opening a water mist spray head in the movable cover vehicle 2 to spray dust fall.
Example 1
System parameters:
the system air volume: 240000m3/h
Flue gas temperature: < 100 deg.C
The main equipment parameters are as follows:
a dust removal fan:
form (a): single-suction double-support centrifugal fan
Quantity: 1 table
Air volume: 24000m3/h
Wind pressure: 4500Pa
Rotating speed: 960r/min
Matching motor power: 450kW, rated voltage: 10kV, rated rotation speed: 960r/min
Outdoor type of motor, insulation grade: f, protection grade: IP 55.
Low-pressure pulse bag collector:
quantity: 1 table
Air volume treatment: 240000m3/h
The filtration area is as follows: 4200m2
And (3) filtering the wind speed: 0.79m/min
The material quality of the filter material: film-coated polyester needled felt
1 set of matching ash conveying and storing device:
cutting out a scraper: 2, single unit output: 10t/h, length: about 20m
A set scraper machine: 1, monomer output: 25t/h, length: 15m
A bucket elevator: 1, force application: 25t/h, lifting height: about 20m
Ash bin: 1, ash bin effective volume: 30m3
An exhaust funnel:
quantity: 1 root of Chinese thorowax
Diameter: d2400
Height: h25 m
Taking 11 heat stewing ponds 5 arranged in a straight line as an example, the design is as follows:
1 set of exhaust fan 6, the design air quantity of the exhaust fan 6 is 240000m3/h
Claims (6)
1. An environmental dust removal system for a steel slag hot stewing pond is characterized by being used for removing dust of high-temperature steel slag in the hot stewing pond (5) and comprising:
two parallel tracks (1) are respectively positioned at two sides of the thermal stewing pool (5),
a movable cover vehicle (2) which is positioned above the tracks (1), is communicated with an external exhaust fan (6) through a pipeline, is a hammer-shaped body with a small upper part and a big lower part, the left side and the right side of the movable cover vehicle are respectively connected with the two tracks (1) in a sliding way, the bottom of the movable cover vehicle is not closed, and is butted with an upper opening of the heat stewing pool (5) so as to form a cavity between the heat stewing pool (5) and the movable cover vehicle (2),
a dust absorption main pipe (3) which is horizontally arranged and is positioned at any side of the hot stewing pond (5) and is arranged in parallel with the track (1),
a dust absorption branch pipe (4) which is horizontally and vertically arranged on the dust absorption main pipe (3), is communicated with the dust absorption main pipe (3), is arranged towards the thermal stewing pool (5), and the free end of the dust absorption branch pipe extends into the movable cover vehicle (2),
the track (1) is used for moving the cover vehicle (2) to move back and forth, the movable cover vehicle (2) is used for enabling dust generated in the hot stewing pool (5) to ascend along the cavity and collect in the inner cavity of the movable cover vehicle (2), and the exhaust fan (6) is used for generating negative pressure and sucking out the dust in the inner cavity of the movable cover vehicle (2) through the dust suction branch pipe (4) and the dust suction main pipe (3).
2. An environmental dedusting system for a steel slag thermal-braising tank as claimed in claim 1, characterized in that the thermal-braising tank (5) is provided in a plurality and arranged in a straight line, and two parallel rails (1) are arranged on two sides of the straight line.
3. The environmental dust removal system for the steel slag hot stewing pool as defined in claim 2, wherein a slag pouring port (7) is formed at one side of the movable cover vehicle (2) close to the dust collection branch pipe (4), the slag pouring port (7) is used for pouring the steel slag into a cavity formed by the movable cover vehicle (2) and the hot stewing pool (5) below the movable cover vehicle, and the dust collection branch pipe (4) extends into the movable cover vehicle (2) through the slag pouring port (7).
4. An environmental dedusting system for steel slag thermal braising tank as claimed in any one of claims 1 to 3, characterized in that the external exhaust fan (6) is connected to the deduster through a pipeline, and the deduster is used for dust purification.
5. The environmental dust removal system for the steel slag hot stewing pond as claimed in claim 4, wherein a plurality of water mist nozzles are mounted at the top of the inner side of the movable cover vehicle (2), and each water mist nozzle is used for spraying water mist to reduce dust.
6. An environmental dedusting system for steel slag stewing pond according to claim 5, wherein each dust suction branch pipe (4) is provided with an electric butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921990783.7U CN210993567U (en) | 2019-11-18 | 2019-11-18 | Environmental dust removal system for steel slag hot stewing pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921990783.7U CN210993567U (en) | 2019-11-18 | 2019-11-18 | Environmental dust removal system for steel slag hot stewing pool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210993567U true CN210993567U (en) | 2020-07-14 |
Family
ID=71482603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921990783.7U Active CN210993567U (en) | 2019-11-18 | 2019-11-18 | Environmental dust removal system for steel slag hot stewing pool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210993567U (en) |
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2019
- 2019-11-18 CN CN201921990783.7U patent/CN210993567U/en active Active
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