Furnace slag flushing chute water-containing flue gas collecting device

Abstract

The utility model relates to the technical field of furnaces, in particular to a furnace slag flushing chute water-containing flue gas collecting device which comprises a negative pressure fan, a slag flushing chute and a slag flushing pipeline arranged at one end of the slag flushing chute, the air outlet end of the negative pressure fan is communicated with a chimney pipeline, and the air inlet end of the negative pressure fan is communicated with a gas collecting main pipe. The other end of the gas collection main pipe is communicated with a gas collection pipeline; a plurality of gas collecting assemblies are distributed on one side of the slag flushing chute at intervals, and a gas collecting assembly is also arranged at one end, corresponding to the slag flushing pipeline, of the slag flushing chute and is connected with a gas collecting pipeline; the gas collecting assembly comprises a gas collecting hood and a gas collecting branch pipe, one end of the gas collecting branch pipe is communicated with the gas collecting hood, and the other end of the gas collecting branch pipe is communicated with the gas collecting pipeline. According to the slag discharging device, a large amount of steam and dust mixtures generated around the slag discharging chute can be collected, the working environment and the sight line of workers are improved, and the workers can conveniently clean the slag discharging chute and grab slag in a slag discharging pool.

Description

Technical Field

[0001] The utility model relates to the technical field of furnaces, and particularly relates to a device for collecting water-containing flue gas of a slag chute of a furnace. Background Art

[0002] A slag chute of a furnace is a device for collecting and treating slag. The slag chute is usually made of graphite, which has good high-temperature resistance and corrosion resistance, and can enable the slag chute to withstand the high temperature and chemical erosion of the slag, so as to ensure the long-term stable service life of the slag chute. The slag chute of the furnace is widely used in metallurgical engineering, especially in treating the slag in the process of non-ferrous metal smelting. Through its special design and material, it can effectively separate and treat the slag, ensuring the smooth progress of the smelting process and the high-efficiency treatment of the slag.

[0003] In the prior art, the hot slag generated by the melting materials in the furnace enters the slag chute through the slag dropping port of the furnace. Slag flushing water is introduced into the slag chute through a slag flushing pipe. Under the scouring action of the slag flushing water, the slag is flushed into the slag flushing pool and collected by the slag flushing pool. However, during the process of flushing the slag with water, due to the high temperature of the slag, a large amount of steam and dust mixture will be generated around the slag chute, which does not meet the environmental protection requirements. And due to a large amount of steam, the sight of the staff when cleaning the slag chute and grasping the slag in the slag flushing pool is poor and the environment is harsh, there are problems that it is inconvenient to clean the slag chute and grasp the slag. Summary of the Invention

[0004] The utility model provides a device for collecting water-containing flue gas of a slag chute of a furnace to solve the problems that a large amount of steam and dust mixture are generated around the slag chute during the process of flushing the slag with water in the prior art, and it is inconvenient to clean the slag chute and grasp the slag. The device can collect a large amount of steam and dust mixture generated around the slag chute, improves the working environment and sight of the staff, so as to facilitate the staff to clean the slag chute and perform slag grasping operation on the slag flushing pool.

[0005] To achieve the above object, the technical solution of the utility model is: a device for collecting water-containing flue gas of a slag chute of a furnace, including a negative pressure fan, a slag chute and a slag flushing pipe arranged at one end of the slag chute. The air outlet end of the negative pressure fan is communicated with a chimney pipe, the air inlet end of the negative pressure fan is communicated with a main gas collecting pipe, and the other end of the main gas collecting pipe is communicated with a gas collecting pipe. The negative pressure fan is used for extracting the steam and dust mixture around the slag chute, and the chimney pipe is used for discharging the steam and dust mixture collected by the extraction of the negative pressure fan into the atmosphere.

[0006] On one side of the slag flushing chute, a plurality of gas collection components are arranged at intervals. A gas collection component is also provided at one end of the slag flushing chute corresponding to the slag flushing pipeline. The gas collection component is connected to the gas collection pipeline, and the purpose of collecting the steam and dust mixture around the slag flushing chute is achieved through the gas collection component.

[0007] The gas collection component includes a gas collection hood and a gas collection branch pipe. One end of the gas collection branch pipe is communicated with the gas collection hood, and the other end is communicated with the gas collection pipeline. The height of the gas collection hood is higher than that of the slag flushing chute. Through the cooperation of the gas collection branch pipe and the gas collection hood, it is convenient to collect the steam and dust mixture around the slag flushing chute.

[0008] Furthermore, a fan support is provided at the bottom of the negative pressure fan; pipeline supports are provided below the gas collection main pipe, the gas collection pipeline, and the gas collection branch pipe. A pipeline support block is provided at the top of the pipeline support, and an arc-shaped groove is opened at the top of the pipeline support block. The pipeline support plays a role in supporting the pipeline support block, so that the pipeline support block plays a role in supporting the gas collection main pipe, the gas collection pipeline, and the gas collection branch pipe.

[0009] Furthermore, a fixed frame is fixedly provided at one end of the gas collection hood close to the slag flushing chute. A circular hole is opened at the end of the gas collection hood far from the slag flushing chute. One end of the gas collection branch pipe is fixedly provided at the circular hole, and the gas collection branch pipe is communicated with the gas collection hood through the circular hole, so as to enable the gas collection hood to collect the steam and dust mixture around the slag flushing chute under the action of the negative pressure fan.

[0010] Furthermore, a support frame is provided below the gas collection hood. An L-shaped plate is fixedly provided at the top of the support frame. The fixed frame is arranged outside the vertical part of the L-shaped plate. The gas collection hood is installed on the L-shaped plate through the fixed frame, so that the support frame plays a role in supporting the gas collection hood.

[0011] Furthermore, a valve is provided on the gas collection branch pipe, and the amount of gas collected by the gas collection hood can be adjusted through the valve.

[0012] Through the above technical solutions, the beneficial effects of the present utility model are as follows:

[0013] The structure of the present utility model is reasonable and has good use effects. It can collect a large amount of steam and dust mixture generated around the slag flushing chute, thereby preventing the steam and dust mixture from diffusing around the slag flushing chute and the slag flushing pool, improving the working environment and vision of the staff, and facilitating the staff to clean the slag flushing chute and perform slag grabbing operations on the slag flushing pool.

[0014] The utility model extracts the steam and dust mixture around the slag flushing chute through a negative pressure fan, and installs air collecting components on one side and the end of the slag flushing chute to achieve the effect of collecting the steam and dust mixture around the slag flushing chute; the air collecting component at the end of the slag flushing chute can prevent the steam and dust mixture from escaping to the slag flushing pool; under the action of the negative pressure fan, the air collecting hood collects the steam and dust mixture at the slag flushing chute, and the steam and dust mixture are sequentially transported to the negative pressure fan through the air collecting branch pipe, the air collecting pipe and the air collecting main pipe, and are discharged from the air outlet end of the negative pressure fan and discharged into the atmosphere through the chimney pipe. Brief Description of the Drawings

[0015] Figure 1 is a structural schematic diagram of a device for collecting water-containing flue gas from a slag flushing chute of a furnace kiln of the present utility model Figure 1 ;

[0016] Figure 2 is a structural schematic diagram of a device for collecting water-containing flue gas from a slag flushing chute of a furnace kiln of the present utility model Figure 2 ;

[0017] Figure 3 is a structural schematic diagram of the air collecting hood of the present utility model Figure 1 ;

[0018] Figure 4 is a structural schematic diagram of the air collecting hood of the present utility model Figure 2 .

[0019] The reference numerals in the drawings are: 1 is the slag flushing chute, 2 is the slag flushing pipe, 3 is the negative pressure fan, 4 is the chimney pipe, 5 is the fan support, 6 is the air collecting main pipe, 7 is the air collecting pipe, 8 is the air collecting hood, 9 is the circular hole, 10 is the fixed frame, 11 is the support frame, 12 is the L-shaped plate, 13 is the air collecting branch pipe, 14 is the valve, 15 is the pipe support, and 16 is the pipe support block. Detailed Embodiment

[0020] The present utility model will be further described below in conjunction with the drawings and specific embodiments:

[0021] As Figures 1 to 4 shown, a device for collecting water-containing flue gas from a slag flushing chute of a furnace kiln includes a negative pressure fan 3, a slag flushing chute 1 and a slag flushing pipe 2 arranged at one end of the slag flushing chute 1. The air outlet end of the negative pressure fan 3 is communicated with a chimney pipe 4, and the air inlet end of the negative pressure fan 3 is communicated with an air collecting main pipe 6. The other end of the air collecting main pipe 6 is communicated with an air collecting pipe 7. In this embodiment, the slag flushing pipe 2 is communicated with the slag flushing chute 1, and slag flushing water is conveyed into the slag flushing chute 2 through the slag flushing pipe 2 to flush the slag entering the slag flushing chute 1 into the slag flushing pool; the negative pressure fan 3 is used to extract the steam and dust mixture around the slag flushing chute 1, and the steam and dust mixture are discharged into the atmosphere through the chimney pipe 4.

[0022] On one side of the slag flushing chute 1, a plurality of gas collecting components are arranged at intervals. At one end of the slag flushing chute 1 corresponding to the slag flushing pipeline 2, a gas collecting component is also provided. The gas collecting component is connected to the gas collecting pipeline 7. In this embodiment, the number of gas collecting components on one side of the slag flushing chute 1 is four, and the number of gas collecting components at the end of the slag flushing chute 1 is one. The gas collecting component at the end of the slag flushing chute 1 can effectively prevent the steam and dust mixture from escaping to the slag flushing pool; among them, the steam and dust mixture generated around the slag flushing chute 1 is collected by the gas collecting component.

[0023] The gas collecting component includes a gas collecting hood 8 and a gas collecting branch pipe 13. One end of the gas collecting branch pipe 13 is communicated with the gas collecting hood 8, and the other end is communicated with the gas collecting pipeline 7. The height of the gas collecting hood 8 is higher than that of the slag flushing chute 1. In this embodiment, the gas collecting hood 8 is in the shape of a frustum of a pyramid. The steam and dust mixture around the slag flushing chute 1 is collected by the gas collecting hood 8, and the steam and dust mixture is transported to the gas collecting pipeline 7 through the gas collecting branch pipe 13, and then transported to the negative pressure fan 3 through the gas collecting main pipe 6. The steam and dust mixture is discharged from the air outlet end of the negative pressure fan 3 into the chimney pipeline 4, and the steam and dust mixture is discharged into the atmosphere by the chimney pipeline 4; the purpose of the height of the gas collecting hood 8 being higher than that of the slag flushing chute 1 is to facilitate the gas collecting hood 8 to collect the steam and dust mixture.

[0024] A fan support 5 is arranged at the bottom of the negative pressure fan 3; pipeline supports 15 are arranged below the gas collecting main pipe 6, the gas collecting pipeline 7 and the gas collecting branch pipe 13. An arc-shaped groove is provided at the top of the pipeline support 15. In this embodiment, the fan support 5 plays a role in supporting the negative pressure fan 3, and the arc-shaped groove matches the gas collecting main pipe 6, the gas collecting pipeline 7 and the gas collecting branch pipe 13, so that the pipeline support 15 supports the gas collecting main pipe 6, the gas collecting pipeline 7 and the gas collecting branch pipe 13 respectively.

[0025] A fixed frame 10 is fixedly arranged at one end of the gas collecting hood 8 close to the slag flushing chute 1. A circular hole 9 is provided at the end of the gas collecting hood 8 far from the slag flushing chute 1. One end of the gas collecting branch pipe 13 is fixedly arranged at the circular hole 9. In this embodiment, the gas collecting hood 8 is flange-connected to the gas collecting branch pipe 13, and the gas collecting branch pipe 13 is communicated with the gas collecting hood 8 through the circular hole 9, so that the gas collecting hood 8 can collect the steam and dust mixture around the slag flushing chute 1 under the action of the negative pressure fan 3.

[0026] A support frame 11 is provided below the air collecting hood 8. At the top of the support frame 11, an L-shaped plate 12 is fixedly provided. The fixed frame 10 is arranged outside the vertical part of the L-shaped plate 12. In this embodiment, the L-shaped plate 12 is bolted to the fixed frame 10 and the support frame 11 for the purpose of facilitating the disassembly or installation of the air collecting hood 8. The fixed frame 10 is welded and fixed to the air collecting hood 8. The air collecting hood 8 is supported and installed by the support frame 11 and the L-shaped plate 12 to ensure that the height of the air collecting hood 8 is higher than that of the slag flushing chute 1, thereby improving the effect of the air collecting hood 8 in collecting steam and dust mixture.

[0027] A valve 14 is provided on the air collecting branch pipe 13. In this embodiment, the amount of steam and dust mixture collected by the air collecting hood 8 can be adjusted through the valve 14.

[0028] The working principle of the present utility model is as follows: When the slag flushing pipe 2 conveys slag flushing water into the slag flushing chute 2 and uses the slag flushing water to flush the slag entering the slag flushing chute 1 into the slag flushing pool, a large amount of steam and dust mixture are generated around the slag flushing chute due to the high temperature of the slag. At this time, the negative pressure fan 3 is turned on. At this time, the air collecting components on one side and at the end of the slag flushing chute 1 collect the steam and dust mixture around the slag flushing chute 1, and the air collecting hood 8 collects the steam and dust mixture around the slag flushing chute 1. The steam and dust mixture enter the air collecting pipe 7 through the air collecting branch pipe 13, and then are conveyed to the negative pressure fan 3 through the air collecting main pipe 6. The steam and dust mixture are discharged from the air outlet end of the negative pressure fan 3 into the chimney pipe 4, and the chimney pipe 4 discharges the steam and dust mixture into the atmosphere.

[0029] The above-described embodiments are only the preferred embodiments of the utility model and do not limit the scope of implementation of the utility model. Therefore, all equivalent changes or modifications made according to the technical solutions described in the scope of the utility model patent should be included within the scope of the patent application of the present utility model.

Claims

1. A water-containing flue gas collection device for a furnace slagging chute, comprising a negative pressure fan (3), a slagging chute (1), and a slagging pipeline (2) arranged at one end of the slagging chute (1), characterized in that, The air outlet end of the negative pressure fan (3) is communicated with a chimney pipe (4), and the air inlet end of the negative pressure fan (3) is communicated with a main air collecting pipe (6), and the other end of the main air collecting pipe (6) is communicated with an air collecting pipe (7); A plurality of air collecting components are arranged at intervals on one side of the slag scouring chute (1), and an air collecting component is also arranged at one end of the slag scouring chute (1) corresponding to the slag scouring pipe (2), and the air collecting component is connected with the air collecting pipe (7); The air collecting component includes an air collecting hood (8) and an air collecting branch pipe (13). One end of the air collecting branch pipe (13) is communicated with the air collecting hood (8), and the other end is communicated with the air collecting pipe (7). The height of the air collecting hood (8) is higher than the height of the slag scouring chute (1).

2. The water-containing flue gas collection device for the slag sluice of the furnace kiln according to claim 1, wherein, A fan support (5) is arranged at the bottom of the negative pressure fan (3); pipe supports (15) are arranged below the main air collecting pipe (6), the air collecting pipe (7) and the air collecting branch pipe (13). A pipe support block (16) is arranged at the top of the pipe support (15), and an arc-shaped groove is formed at the top of the pipe support block (16).

3. The water-containing flue gas collection device for the slag sluice of the furnace kiln according to claim 1, wherein A fixed frame (10) is fixedly arranged at one end of the air collecting hood (8) close to the slag scouring chute (1), a circular hole (9) is formed at the end of the air collecting hood (8) far from the slag scouring chute (1), and one end of the air collecting branch pipe (13) is fixedly arranged at the circular hole (9).

4. The water-containing flue gas collection device for the slag sluice of the furnace kiln according to claim 3, wherein, A support frame (11) is arranged below the air collecting hood (8), an L-shaped plate (12) is fixedly arranged at the top of the support frame (11), and the fixed frame (10) is arranged outside the vertical part of the L-shaped plate (12).

5. The water-containing flue gas collecting device for a furnace slag chute according to claim 1, characterized in that, A valve (14) is arranged on the air collecting branch pipe (13).

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