CN217698532U - Converter OG system smoke and dust processing structure - Google Patents

Abstract

The utility model belongs to a flue gas treatment device, in particular to a converter OG system smoke treatment structure, which comprises a smoke pipeline, wherein a fan is arranged on the smoke pipeline, the smoke pipeline is connected with a chimney, a parallel pipe is arranged between the smoke pipeline and the chimney, the connecting part of the parallel pipe and the smoke pipeline is at an angle of 90 degrees, and an atomizing spray head is arranged in the smoke pipeline at the angle of 90 degrees; the device has the advantages of simple structure, low processing cost, obvious effect of treating dust particles with the specific gravity of less than 10 mu m and capability of effectively solving the problem that black smoke is intermittently emitted in the OG dust removal system.

Description

Converter OG system smoke and dust processing structure

Technical Field

The utility model belongs to flue gas processing apparatus, concretely relates to converter OG system smoke and dust handles structure.

Background

Old OG dust pelletizing system intermittent type nature can emit black cigarette, and research shows, OG dust pelletizing system once of unburned method converter, its smoke and dust main component is: feO accounts for 67.16%, fe2O3 accounts for 16.2%, siO2 accounts for 3.64%, caO accounts for 9.04%, C accounts for 1.68%, and the smoke particle size composition is as follows: dust particles of >20 μm account for 16%, dust particles of 10-20 μm account for 72.3%, dust particles of 5-10 μm account for 9.9%, dust particles of <5 μm account for 1.8%. The dust removal mechanism of the OG system is mainly mechanical dust removal, and inertia, centrifugal force and gravity are involved. Therefore, the particles with large granularity and large specific gravity in the smoke have better removal effect. Because the OG system has long-term service life, large pipeline resistance loss, ineffective furnace mouth micro-positive pressure regulation and unsatisfactory dust removal effect, but has little influence on the removal rate of large-particle smoke dust (the low-energy wet dust collector has purification efficiency of 90-95 percent on dust particles with the particle size of more than 10 mu m), the intermittent black smoke is particles with small particle size and light specific gravity.

Dust particles having a low specific gravity of 10 μm or less are not satisfactory in terms of a direct mechanical dust removal effect, and the wettability of dust particles increases with an increase in pressure and decreases with an increase in temperature.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a converter OG system smoke and dust processing structure to prior art's OG dust pelletizing system intermittent type nature can emit black cigarette scheduling problem.

In order to satisfy the above-mentioned purpose, the utility model discloses the technical scheme who takes does:

the utility model provides a converter OG system smoke and dust processing structure, includes the smoke and dust pipeline, be equipped with the fan on the smoke and dust pipeline, the smoke and dust pipeline is connected with the chimney, is equipped with the parallel tube between smoke and dust pipeline and the chimney, and the parallel tube is 90 jiaos with the smoke and dust pipeline junction, is equipped with the atomizer in the smoke and dust pipeline of 90 jiaos.

Preferably, the number of the atomization nozzles is three, and the three atomization nozzles are uniformly distributed on the pipe wall of the smoke pipeline in an annular mode.

Preferably, the angle between the atomizing nozzle and the pipe wall of the smoke pipeline is 30 degrees, and the atomizing nozzle is connected with a water pipe.

Preferably, the joint of the parallel pipe and the chimney is of a T-shaped structure.

Preferably, a chimney drain pipe is arranged at the bottom of the chimney.

The beneficial effects of the utility model are that:

the utility model discloses a dust particle wettability is good, the big characteristics of 90 elbow turbulent degree behind the machine is utilized to the structure, adds three atomizer in 90 elbows departments in three-way valve top, and the shower nozzle sprays direction and air current to coming to becoming 60 jiaos. The atomized droplets collide with the dusty gas stream and under the turbulent flow of 90 ° bend disorder, the dust particles combine with the atomized droplets into particles of larger particle size and specific gravity. The gravity settlement part is arranged in the parallel pipe between the 90-degree elbow and the diffusing chimney, particles at the T-shaped connector collide with the pipe wall under the action of inertia, fall along the pipe wall along with water flow and are discharged through the drainer.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an arrangement diagram of the atomizer;

FIG. 3 is a schematic view of the jet angle of the atomizer;

FIG. 4 is an enlarged view of a portion of FIG. 1;

in the figure, 1, a fan, 2, an atomizing nozzle, 3, a parallel pipe, 4, a chimney, 5, a chimney drain pipe, 6, a pipe wall and 7, a water pipe.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and working principles:

a converter OG system smoke and dust processing structure as shown in figure 1, including the smoke and dust pipeline, be equipped with fan 1 on the smoke and dust pipeline, provide power for the play cigarette of smoke and dust pipeline, the smoke and dust pipeline is connected with chimney 4, be equipped with parallel tube 3 between smoke and dust pipeline and the chimney 4, moist smoke and dust subsides partly through gravity by oneself in the passageway of parallel tube 3, parallel tube 3 is 90 jiaos with the junction of smoke and dust pipeline, be equipped with atomizer 2 in the smoke and dust pipeline of 90 jiaos, atomizer 2 is arranged in the smoke and dust of moist smoke and dust pipeline.

As shown in fig. 2, three atomizing spray heads 2 are arranged on the pipe wall 6 of the smoke pipeline, and the three atomizing spray heads 2 are uniformly distributed in an annular manner, so that smoke in the wet smoke pipeline is more uniform and can be wetted in an all-round manner.

As shown in fig. 3, the angle between the atomizing nozzle 2 and the pipe wall 6 of the smoke pipeline is 30 degrees, so that the smoke and the water mist can be easily contacted, and the atomizing nozzle 2 is connected with the water pipe 7 to provide a water source for the water mist.

As shown in fig. 4, the joint of the parallel pipe 3 and the chimney 4 is a T-shaped structure, a part of the parallel pipe 3 which is not settled is driven by the fan 1 to contact with the wall of the chimney 4 at the T-shaped outlet, and slides to the bottom of the chimney 4 after inertial collision, and a chimney drain pipe 5 is arranged at the bottom of the chimney 4 to discharge the sliding smoke.

When the smoke and dust exhausting device is used, the fan 1 is turned on, smoke and dust in a smoke and dust pipeline is atomized through the three atomizing nozzles 2 and partially settled in the parallel pipe 3, and a part which is not settled is driven by the fan 1 to be in contact with the wall of the chimney 4 at the T-shaped outlet, and slides to the bottom of the chimney 4 after inertial collision, the chimney drain pipe 5 is arranged at the bottom of the chimney 4 to discharge the sliding smoke and dust, and the problem of black smoke emission does not occur due to the fact that the smoke and dust discharged from the chimney 4 passes through the structure.

The device has the advantages of reduced environmental temperature and large positive pressure of the pipeline, and can effectively improve the wettability of dust particles. Under the action of the micro water drops of the atomizing nozzle 2, particles with large particle size, large specific gravity and easy mechanical removal are formed. The hydraulic characteristic of the elbow is that when fluid passes through the elbow, the pressure of the outer wall is increased, the flow velocity is small, the pressure of the inner wall is reduced, and the flow velocity is high; an eddy current area is formed on the inner wall and is diffused to the surrounding three-dimensionally; secondary flow is generated in the elbow and is superposed with the main flow to form spiral flow.

Claims (5)

1. The utility model provides a converter OG system smoke and dust processing structure, includes the smoke and dust pipeline, its characterized in that: the smoke and dust pipeline is provided with a fan (1), the smoke and dust pipeline is connected with a chimney (4), a parallel pipe (3) is arranged between the smoke and dust pipeline and the chimney (4), the joint of the parallel pipe (3) and the smoke and dust pipeline is at an angle of 90 degrees, and an atomizing nozzle (2) is arranged in the smoke and dust pipeline at the angle of 90 degrees.

2. The structure of claim 1, wherein the structure is characterized in that: the three atomizing spray heads (2) are arranged on the pipe wall (6) of the smoke pipeline, and the three atomizing spray heads (2) are uniformly distributed in an annular mode.

3. The structure of claim 2, wherein the structure is characterized in that: the angle between the atomizing nozzle (2) and the smoke pipeline wall (6) is 30 degrees, and the atomizing nozzle (2) is connected with the water pipe (7).

4. The converter OG system smoke processing structure of claim 1, characterized in that: the joint of the parallel pipe (3) and the chimney (4) is of a T-shaped structure.

5. The structure of claim 4, wherein the structure is characterized in that: and a chimney drain pipe (5) is arranged at the bottom of the chimney (4).

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