CN105004189B - A kind of mobile tunnel furnace fume collection purifier - Google Patents

Abstract

The invention discloses a mobile tunnel kiln flue gas collection and purification device. The device includes a scaffold fixed on the main beam of the kiln on the roof of the kiln. Several sets of scaffolds are arranged on the scaffold and can follow the kiln body along the circular track. The flue gas collection assembly in operation, any set of flue gas collection assemblies collects the flue gas and discharges the flue gas into the annular ditch for primary purification; the upper part of the annular ditch near the center of the ring site is fixed with an annular exhaust The annular exhaust hood is connected with several exhaust branch pipes, and any one of the exhaust branch pipes is connected with the purification tower, and the flue gas that enters the annular exhaust hood after a purification is passed through the exhaust by the induced draft fan. The gas branch pipe is introduced into the purification tower for secondary purification, and then discharged through the chimney connected with the purification tower. The invention has simple structure and low production cost, and the flue gas collection and purification device can move along the circular track with the kiln body, which solves the problem that the flue gas of the mobile tunnel kiln is difficult to collect.

Description

A mobile tunnel kiln flue gas collection and purification device

technical field

The invention relates to the technical field of brick and tile kiln equipment, in particular to a mobile tunnel kiln flue gas collection and purification device.

Background technique

At present, there are a large number of domestic brick and tile kilns and various types. During the process of firing shale bricks or refractory bricks and other products in coal-fired tunnel kilns, the main pollutants discharged are smoke, SO2, NOx and CO. If they are not collected and dedusted and purified , is directly discharged into the atmosphere, and has a universal destructive effect on human health, plant growth, and ambient air. Due to the restriction of economic and technical development level, the problem of kiln flue gas pollution has not attracted enough attention. Among them, only a few brick and tile kilns are equipped with more advanced dust removal equipment (such as electrostatic dust removal, bag dust removal, etc.) and can meet the standard stably. The flue gas exhaust system of the traditional tunnel kiln purifies the flue gas, the flue gas collection and purification effect is average, and cannot fully meet the environmental protection requirements. In addition, there is no report on the flue gas collection and purification device of the mobile tunnel kiln. Therefore, effective measures must be taken to eliminate smoke and dust in mobile tunnel kilns to prevent air pollution.

Contents of the invention

The purpose of the present invention is to provide a mobile tunnel kiln flue gas collection and purification device, which has simple structure, reasonable design, and low production cost. The collection is more thorough, effectively avoiding the flying of smoke and dust, ensuring that the environment around the kiln workshop is up to standard, and reducing the environmental hazards of coal-fired tunnel kiln flue gas.

To achieve the above object, the present invention adopts the following technical solutions:

A mobile tunnel kiln flue gas collection and purification device, the device includes a scaffold 12 fixed on the main beam of the kiln on the roof of the kiln, the scaffold 12 is provided with several sets of A smoke collection assembly, any set of smoke collection assemblies collects the smoke and discharges the smoke into the annular ditch 3 for primary purification; the upper part of the ring ditch 3 close to the center of the ring site is fixed with a ring exhaust Cover 5, the annular exhaust hood 5 communicates with several exhaust branch pipes 6, any of the exhaust branch pipes 6 communicates with the purification tower 4, and utilizes the induced draft fan 7 to enter the annular exhaust hood after a purification The flue gas in 5 is introduced into the purification tower 4 through the exhaust branch pipe 6 for secondary purification, and then discharged through the chimney connected to the purification tower 4.

Further, said any set of smoke collection assembly includes a smoke collection hood 13 fixed on the shelf 12, said smoke collection hood 13 communicates with several gas collection branch pipes 15, any of the gas collection branch pipes 15 communicates with the air collecting pipe 16, and the air collecting pipe 16 communicates with the air outlet pipe 9 through the blower fan 11 and the air outlet reducing pipe 10, and one end of the air outlet pipe 9 stretches into the annular exhaust hood 5 below the liquid level of the water 8.

Preferably, there are one or two sets of flue gas collection assemblies that can run along the circular track with the kiln body, and those skilled in the art can also choose more sets, such as five sets, etc. according to actual needs.

Preferably, the gas collecting branch pipes 15 are arranged in parallel and distributed on the top of the fume collecting hood 13 , and the gas collecting pipe 16 is fixed on the outside of the top of the fume collecting hood 13 by the gas collecting pipe clamp.

The present invention utilizes the fan 11 to introduce the flue gas in the flue gas collection hood 13 to below the liquid level of the water 8 in the annular exhaust hood 5 through the gas collecting branch pipe 15, the gas collecting pipe 16, the gas outlet reducing pipe 10 and the gas outlet pipe 9 in sequence.

Preferably, the air outlet pipe 9 is square, round or flat, and those skilled in the art can also choose other shapes of air outlet pipes, such as trapezoidal, etc. according to actual needs.

Preferably, the number of exhaust branch pipes 6 is 4 or 8, and those skilled in the art can also select other numbers of exhaust branch pipes, such as 10 or more, as required.

The exhaust branch pipes 6 are evenly distributed centripetally in the ring-shaped field with the purification tower as the center.

The flue gas collection cover of the present invention is located between the lower part of the kiln canopy and the kiln pipeline.

In the present invention, the fan fixed on the column of the kiln is used to introduce the flue gas of the gas-collecting branch pipe into the gas-collecting pipe, and then the flue gas enters below the liquid level of the water in the annular exhaust hood through the gas outlet variable diameter pipe and the gas outlet pipe, thereby realizing the flue gas Effective removal of dust and some soluble toxic gases in the air. Among them, the pipe diameter of the air collecting pipe, the shape and size of the air outlet pipe, and the model of the fan can be selected according to the amount of flue gas in the flue gas collection hood, the intake speed, the temperature of the flue gas, and the width and depth of the water ditch.

In the present invention, the flue gas that has been water-sealed and dedusted enters the annular exhaust hood fixed inside the annular ditch, and then is introduced into the purification tower through the exhaust branch pipe to realize the removal of toxic and harmful gases, and finally the flue gas that meets the emission standard passes through The chimney vents to the atmosphere. There can be four, eight or more branch exhaust pipes, and the pipe diameters are selected according to the amount of flue gas in the annular exhaust hood.

The invention realizes the effective collection and purification of the flue gas of the mobile tunnel kiln, the device structure is simple, easy to disassemble and maintain, the equipment investment is small, the operation cost is low, the use is safe and reliable, and the dust and toxic gas in the flue gas of the mobile kiln can be removed Clean up, the whole system is energy-saving and environmentally friendly, and has high economic benefits. It conforms to the principle of "key pollution sources and key treatment" in environmental protection management, and solves the problem that the flue gas of the mobile tunnel kiln is not easy to collect.

Description of drawings

Fig. 1 is a top view structural schematic diagram of the flue gas collection and purification device of the present invention;

Fig. 2 is a cross-sectional view taken along line A of Fig. 1 .

The reference signs are: 1. Kiln outer ring track; 2. Kiln inner ring track; 3. Annular ditch; 4. Purification tower; 5. Ring exhaust hood; 6. Exhaust branch pipe; 8. Water; 9. Air outlet pipe; 10. Air outlet variable diameter pipe; 11. Fan; 12. Scaffold; 13. Smoke collection cover; 14. Smoke exhaust hole; 15. Gas collection branch pipe; 16. Air collection pipe.

detailed description

The specific implementation manners of the present invention will be further described by way of examples in conjunction with the accompanying drawings, but are not limited to the implementation manners or implementation effects given in the examples.

As shown in Figure 1, the mobile tunnel kiln can move circularly along the kiln outer ring track 1 and the kiln inner ring track.

As shown in Figures 1 and 2, a mobile tunnel kiln flue gas collection and purification device, the device includes a scaffold 12 fixed on the kiln main beam on the kiln roof, and two sets of A flue gas collection assembly that can run along the circular track with the kiln body. After collecting the flue gas, any set of the flue gas collection assembly discharges the flue gas into the annular ditch 3 for primary purification; the annular ditch 3 is close to the center of the ring site The top of one side is fixedly provided with annular exhaust cover 5, and described annular exhaust cover 5 is communicated with several exhaust branch pipes 6, and described arbitrary exhaust branch pipe 6 is communicated with purification tower 4, and utilizes induced draft fan 7 to After primary purification, the flue gas entering the annular exhaust hood 5 is introduced into the purification tower 4 through the exhaust branch pipe 6 for secondary purification, and then discharged through the chimney connected to the purification tower 4 .

Said any set of smoke collection assembly includes a smoke collection hood 13 fixed on the shelf 12, said smoke collection cover 13 communicates with several gas collection branch pipes 15, and said any gas collection branch pipe 15 is connected to the collection branch pipe 15. Tracheal pipe 16 is connected, and described air collecting pipe 16 is connected with outlet pipe 9 through blower fan 11, air outlet reducer pipe 10, and described outlet pipe 9 one end stretches into below the liquid level of water 8 in annular exhaust hood 5.

The gas collecting branch pipes 15 are arranged in parallel and distributed on the top of the fume collecting hood 13, and the gas collecting pipe 16 is fixed on the outside of the top of the fume collecting hood 13 by the gas collecting pipe clamp.

The present invention utilizes the fan 11 to introduce the flue gas in the flue gas collection hood 13 to below the liquid level of the water 8 in the annular exhaust hood 5 through the gas collecting branch pipe 15, the gas collecting pipe 16, the gas outlet reducing pipe 10 and the gas outlet pipe 9 in sequence.

The air outlet pipe 9 is square.

The number of the exhaust branch pipes 6 is 8, and the exhaust branch pipes 6 are evenly distributed on the side of the annular ditch 3 close to the center of the annular field.

The flue gas collection cover of the present invention is located between the lower part of the kiln canopy and the kiln pipeline.

The working process of the mobile tunnel kiln flue gas collection and purification device is: first, collect the flue gas discharged from the multiple smoke exhaust holes 14 on the top of the kiln into the flue gas collection hood 13, and then use the fan 11 to blow the flue gas into the flue gas collection hood 13. The flue gas is introduced into the annular exhaust hood 5 below the liquid level of the water 8 through a plurality of gas-collecting branch pipes 15, gas-collecting pipes 16, outlet variable-diameter pipes 10, and outlet pipes 9 in sequence. Effective removal of dust and some soluble toxic gases. Finally, the induced draft fan 7 is used to introduce the flue gas in the annular exhaust hood 5 into the purification tower 4 through the exhaust branch pipe 6, the flue gas is further purified by the purification tower 4, and the flue gas that meets the emission standard is discharged into the atmosphere through the chimney.

The above shows and describes the basic working principle of the present invention and the main features of the present invention. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What the above-mentioned embodiments and description describe only illustrate the principle of the present invention. Under the premise of not departing from the spirit and scope of the present invention, the present invention also has Variations and improvements are possible, which fall within the scope of the claimed invention.

Claims (8)

1. A mobile tunnel kiln flue gas collection and purification device is characterized in that, said device comprises a scaffold (12) fixed on the kiln girder of the kiln roof, and said scaffold (12) is provided with several Set of flue gas collection components that can run along the circular track with the kiln body, any set of flue gas collection components collects the flue gas and discharges the flue gas into the annular water ditch (3) for primary purification; the annular water ditch (3) is close to The upper part of one side of the center of the ring site is fixedly provided with an annular exhaust hood (5), and the annular exhaust hood (5) communicates with several exhaust branch pipes (6), and any exhaust branch pipe (6) is connected to the purification tower ( 4) connected to each other, and utilize the induced draft fan (7) to introduce the flue gas that enters the annular exhaust hood (5) through the exhaust branch pipe (6) into the purification tower (4) for secondary purification, and then It is discharged through the chimney connected to the purification tower (4). 2. A mobile tunnel kiln flue gas collection and purification device according to claim 1, characterized in that any set of flue gas collection components includes a flue gas collection cover (13) fixed on the scaffold (12), The flue gas collection hood (13) is connected with several gas collecting branch pipes (15), any gas collecting branch pipe (15) is connected with the gas collecting pipe (16), and the gas collecting pipe (16) is passed through the fan (11) , The gas outlet reducer pipe (10) is connected with the gas outlet pipe (9), and one end of the gas outlet pipe (9) stretches into the annular exhaust hood (5) below the liquid level of the water (8). 3. A mobile tunnel kiln flue gas collection and purification device according to claim 1 or 2, characterized in that there are one set or two sets of flue gas collection components that can run along the circular track with the kiln body . 4. A mobile tunnel kiln flue gas collection and purification device according to claim 2, characterized in that, the gas collection branch pipes (15) are arranged in parallel and distributed on the top of the flue gas collection cover (13), and the gas collection pipes (16 ) is fixed on the outside of the top of the flue gas collection cover (13) by the gas collecting pipe clamp. 5. A mobile tunnel kiln flue gas collection and purification device according to claim 2, characterized in that the flue gas in the flue gas collection hood (13) is sequentially passed through the gas collecting branch pipe (15) by a fan (11) , air collecting pipe (16), air outlet reducing pipe (10) and air outlet pipe (9) are introduced into below the liquid level of water (8) in the annular exhaust hood (5). 6. A mobile tunnel kiln flue gas collection and purification device according to claim 2, characterized in that the outlet pipe (9) is square, round or flat. 7. A mobile tunnel kiln flue gas collection and purification device according to claim 1, characterized in that the number of said exhaust branch pipes (6) is 4 or 8. 8. A mobile tunnel kiln flue gas collection and purification device according to claim 1, characterized in that, the branch exhaust pipes (6) are distributed centripetally and uniformly in the ring-shaped field with the purification tower as the center.