Matte Granulation Steam Collection Device

Abstract

The present invention provides a device for collecting steam from matte granulation, comprising a dust collecting cylinder, an exhaust port in the middle of the upper part of the dust collecting cylinder, a sewage outlet in the middle of the lower part, an air inlet in the wall of the dust collecting cylinder whose air inlet direction is consistent with the tangent direction of the dust collecting cylinder, and a sprayer for spraying washing water on the inner wall of the dust collecting cylinder. In this way, dust-containing steam will form a vortex along the cylinder wall after entering the dust collecting cylinder, and the washing water will form a layer of water film on the cylinder wall, and the dust-containing steam spiraling upward along the cylinder wall can fully contact with the water film so that the water film can collect dust particles, and then be discharged from the exhaust port into the atmosphere.

Description

Technical Field

[0001] The invention relates to the field of factory tail gas treatment, and in particular to a matte granulation steam collection device. Background Art

[0002] Matte granulation refers to the process of discharging high-temperature molten matte from the copper outlet of a flash smelting furnace and introducing it into a granulation tower through a copper outlet chute, where it is quenched by pressurized water sprayed from a granulation water tank to obtain sand-like matte.

[0003] In the prior art, since the large amount of steam generated during the water quenching process has little pollution, it is generally discharged directly into the atmosphere through the chimney. However, there are still certain dust particles in the steam, and the direct discharge of high-temperature steam into the air will also produce certain thermal pollution. Therefore, it is necessary to further process the steam generated by matte granulation to reduce pollution to the environment. Summary of the invention

[0004] The object of the present invention is to provide a matte granulation steam collecting device which can process a large amount of steam generated during the matte granulation water quenching process.

[0005] To achieve the above-mentioned purpose, the solution of the present invention is: a matte granulation steam collection device, including a dust collecting cylinder, the upper middle part of the dust collecting cylinder is an exhaust port, the lower middle part is a sewage outlet, an air inlet with an air inlet direction consistent with the tangent direction of the dust collecting cylinder is opened on the cylinder wall of the dust collecting cylinder, and a sprayer is provided inside the dust collecting cylinder to spray washing water onto its inner wall.

[0006] In this way, after the dust-laden steam enters the dust collector, it will form a vortex along the wall of the cylinder, and the washing water will form a layer of water film on the wall of the cylinder. The dust-laden steam spiraling upward along the wall of the cylinder can fully contact with the water film so that the water film can collect dust particles and then be discharged into the atmosphere from the exhaust port. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; DETAILED DESCRIPTION

[0008] A device for collecting steam from matte granulation includes a dust collecting cylinder 10, an exhaust port 11 is provided in the middle of the upper part of the dust collecting cylinder 10, a sewage outlet 12 is provided in the middle of the lower part of the dust collecting cylinder 10, an air inlet 13 is provided on the wall of the dust collecting cylinder 10, and an air inlet direction is consistent with the tangent direction of the dust collecting cylinder 10, and a sprayer 20 is provided inside the dust collecting cylinder 10 for spraying washing water onto the inner wall thereof.

[0009] In the above scheme, the dust-laden steam is introduced into the dust removal cylinder from the air inlet 13. After entering the dust removal cylinder 10, the dust-laden steam will form a vortex along the cylinder wall, and the washing water will form a layer of water film on the cylinder wall. The dust-laden steam spiraling upward along the cylinder wall can fully contact with the water film so that the water film can capture dust particles. At the same time, the dust-laden steam spirals upward, and its airflow direction is not easy to drive fine water droplets to be discharged from the exhaust port 11. The sewage after capturing the dust particles is discharged from the sewage discharge port 12, and the purified air is discharged from the exhaust port into the atmosphere.

[0010] A flat lower circular partition 30 is arranged above the air inlet 13 inside the dust collecting cylinder 10, and guide blades 31 with a plate surface forming an acute angle with the horizontal plane are arranged between the outer periphery of the lower circular partition 30 and the cylinder wall of the dust collecting cylinder 10. The guide blades 31 form an annular array with the axis core of the dust collecting cylinder 10 as a reference, and the plate surfaces of adjacent guide blades 31 are close to each other and arranged at intervals. The area between the lower circular partition 30 and the sewage discharge outlet 12 constitutes a cyclone dust removal area 14.

[0011] In this way, the dust-containing steam can only enter the upper layer through the gaps between the guide blades 31, and the washing water will also form a water film on the surface of the guide blades 31, reaching the contact area with the dust-containing steam. At the same time, the guiding direction of the guide blades 31 will also make the dust-containing steam further rotate and rise, and the guide blades 31 directly connect and fix the lower circular partition 30 in the dust removal cylinder 10 without the need to set up other brackets.

[0012] A guide vane 41 whose plate surface forms an acute angle with the horizontal plane is arranged between the upper end of the sprayer 20 inside the dust collector 10 and the flat upper annular baffle 40. The guide vane 41 forms an annular array with the axis of the dust collector 10 as a reference. The plates of adjacent guide vanes 41 are close to each other and arranged at intervals. The outer periphery of the upper annular baffle 40 is connected to the inner wall of the dust collector 10, and the area between the upper annular baffle 40 and the exhaust port 11 constitutes a cyclone dehumidification zone 16.

[0013] The guide vane 41 guides the exhaust gas to be discharged into a vortex, and the vortex dehumidification area does not spray washing water, so that water droplets reach the inner wall of the dust removal cylinder 10 under the action of centrifugal force and flow down along the inner wall, thereby achieving the purpose of dehumidification.

[0014] The sprayer 20 is in the shape of a tube column whose axis is consistent with the axis of the dust removal cylinder 10, and the cylindrical surface of the sprayer 20 is densely covered with spray ports 21 for spraying washing water to the inner wall of the dust removal cylinder 10. This is more conducive to the sprayer 20 spraying washing water to the inner wall of the dust removal cylinder 10.

[0015] The lower circular partition 30 is connected to the lower end of the sprayer 20, and the area between the upper annular partition 40 and the lower circular partition 30 constitutes the washing and dust removal area 15. In this way, the sprayer 20 can be directly fixed on the lower circular partition 30 without setting an additional bracket.

[0016] An inner cylinder 50 is disposed below the outer periphery of the guide plate 41, and the height of the inner cylinder 50 is 1 / 2-1 / 3 of the height of the sprayer 20. In this way, the dust-laden steam swirling upward will reach the guide plate 41 from below the inner cylinder 50, and the washing water will also form a water film on the inner wall of the inner cylinder 50, further improving the dust removal efficiency.

[0017] The guide blade 31 and the guide blade 41 have the same guiding direction, and the guiding directions of the two are consistent with the initial airflow direction. This is conducive to smooth airflow. If the airflow resistance is to be increased, the guiding directions of the guide blade 31 and the guide blade 41 can be similar to increase the time the airflow stays in the dust removal cylinder 10.

[0018] The upper part of the dust removal cylinder 10 is a conical cylinder with a small top and a large bottom, and an exhaust port 11 is opened at the small diameter end of the conical cylinder. The lower part of the dust removal cylinder 10 is a conical cylinder with a small bottom and a large top, and a sewage outlet 12 is opened at the small diameter end of the conical cylinder. This is convenient for exhaust and drainage.

[0019] The upper end of the sprayer 20 is provided with a water inlet pipe 22, which passes through the wall of the dust removal cylinder 10 and is connected to a water source. The upper end of the sprayer 20 is relatively dry and is not easy to corrode the water inlet pipe 22, so the water inlet pipe 22 is arranged at this position.

Claims

1. A matte granulation steam collection device, characterized in that: The dust collecting cylinder (10) comprises an exhaust port (11) at the middle of the upper part of the dust collecting cylinder (10), a sewage outlet (12) at the middle of the lower part, an air inlet (13) whose air inlet direction is consistent with the tangent direction of the dust collecting cylinder (10) is provided on the cylinder wall of the dust collecting cylinder (10), and a sprayer (20) is provided inside the dust collecting cylinder (10) for spraying washing water onto the inner wall thereof; A guide vane (41) whose plate surface forms an acute angle with a horizontal plane is arranged between the upper end of the sprayer (20) inside the dust removal cylinder (10) and the upper horizontal annular baffle (40), the guide vanes (41) forming an annular array with the axis of the dust removal cylinder (10) as a reference, the plate surfaces of adjacent guide vanes (41) being close to each other and arranged at intervals, the outer periphery of the upper annular baffle (40) being connected to the inner wall of the dust removal cylinder (10), the area between the upper annular baffle (40) and the exhaust port (11) forming a cyclone dehumidification area (16), an inner cylinder (50) being arranged below the outer periphery of the guide vane (41), the height of the inner cylinder (50) being 1 / 2 to 1 / 3 of the height of the sprayer (20); A lower circular baffle (30) is arranged above the air inlet (13) inside the dust removal cylinder (10), and guide blades (31) whose plate surfaces form an acute angle with a horizontal plane are arranged between the outer periphery of the lower circular baffle (30) and the cylinder wall of the dust removal cylinder (10). The guide blades (31) form an annular array with the axis of the dust removal cylinder (10) as a reference, and the plate surfaces of adjacent guide blades (31) are arranged close to each other and at intervals, and the area between the lower circular baffle (30) and the sewage outlet (12) forms a cyclone dust removal area (14).

2. The matte granulation steam collecting device according to claim 1, characterized in that: The sprayer (20) is in the shape of a tube column, the axis of which is consistent with the axis of the dust removal cylinder (10), and the column surface of the sprayer (20) is densely covered with spray ports (21) for spraying washing water toward the inner wall of the dust removal cylinder (10).

3. The matte granulation steam collecting device according to claim 2, characterized in that: The lower circular partition (30) is connected to the lower end of the sprayer (20), and the area between the upper annular partition (40) and the lower circular partition (30) constitutes a washing and dust removal area (15).

4. The matte granulation steam collecting device according to claim 3 is characterized in that: The flow guiding directions of the guide blade (31) and the guide plate (41) are consistent, and the flow guiding directions of both are consistent with the initial airflow direction.

5. The matte granulation steam collecting device according to claim 1, characterized in that: The upper part of the dust removal cylinder (10) is a conical cylinder with a small top and a large bottom, and an exhaust port (11) is provided at the small diameter end of the conical cylinder. The lower part of the dust removal cylinder (10) is a conical cylinder with a small bottom and a large top, and a sewage discharge port (12) is provided at the small diameter end of the conical cylinder.

6. The matte granulation steam collecting device according to claim 1, characterized in that: A water inlet pipe (22) is provided at the upper end of the sprayer (20), and the water inlet pipe (22) passes through the wall of the dust removal cylinder (10) and is connected to a water source.

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