Blast furnace gas purification device

Abstract

The utility model discloses a blast furnace gas purification device which comprises a purification box, a gas inlet joint is arranged at the bottom of the purification box, the gas inlet joint is connected with a gas inlet pipe used for conveying gas, filtering liquid submerging the gas inlet joint is arranged at the bottom in the purification box, and a partition plate is arranged at the position, corresponding to the upper portion of the filtering liquid, in the purification box. A plurality of mounting holes are formed in the partition plate, a filter element is arranged in each mounting hole, an exhaust port is formed in the top of the purification box, and exhaust is arranged at the exhaust port. The partition plate is arranged in the purification box, the filter liquid is arranged below the partition plate, the filter element is arranged on the partition plate, and the filter liquid and the filter element are matched to effectively filter and purify dust particles in blast furnace gas, so that the cleanliness of the blast furnace gas is guaranteed, smooth operation of pipelines and equipment is effectively protected, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment equipment technical field especially relates to blast furnace gas purification device. BACKGROUND

[0002] Coke oven gas can be used as industrial fuel, is widely used in steel rolling heating furnace of steel enterprise and power generation operation of power plant, coke oven gas contains a large amount of dust particulate, if not effectively purifying coke oven gas, dust and other impurities are easy to deposit in pipeline and equipment, lead to pipeline blockage and equipment operation is not smooth, and dust impurities also can cause system resistance to increase, energy consumption increases, influence production efficiency, therefore, how to improve the purification effect of blast furnace gas is the most important thing to guarantee the normal operation of equipment. SUMMARY

[0003] The utility model discloses a blast furnace gas purification device to effectively solve the deficiency in prior art.

[0004] To realize above-mentioned purpose, the utility model takes technical scheme for blast furnace gas purification device, including purification tank, the bottom of purification tank is provided with inlet joint, the inlet joint is connected with the inlet pipe for conveying gas, the bottom in purification tank is provided with filter liquid that does not pass through inlet joint, the position that corresponds above filter liquid in purification tank is provided with baffle, is provided with a plurality of mounting holes on the baffle, is provided with filter core in each mounting hole, the top of purification tank is provided with exhaust port, is provided with exhaust pipe at exhaust port;

[0005] The filter core includes filter cartridge that is vertically inserted in the mounting hole, the top of the filter cartridge is transversely provided with a shunt cylinder, the shunt cylinder and the filter cartridge are in communication with each other, the shunt cylinder is vertically downward at both ends and is provided with an exhaust cylinder, a plurality of exhaust holes are uniformly arranged on the side wall of the exhaust cylinder, and the bottom end of the exhaust cylinder is placed on the baffle.

[0006] Further, the exhaust cylinder is placed with a breathable filter block.

[0007] Further, the filter block is a honeycomb activated carbon block.

[0008] Further, a plurality of vertical partition strips are uniformly arranged on the inner wall of the filter cartridge in the circumferential direction.

[0009] Further, a plurality of convex points are uniformly arranged on the inner wall of the shunt cylinder.

[0010] Further, the purification tank is provided with a liquid supplement pipe below the baffle.

[0011] Further, the bottom of the purification tank is also provided with a liquid discharge pipe.

[0012] The above technical scheme of the utility model has the following beneficial effects: the utility model discloses a partition is arranged in the purification tank, the filter liquid is arranged under the partition, the filter core is arranged on the partition, the filter liquid cooperates with the filter core and carries out effective filtration and purification to the dust particulate in the blast furnace gas, thereby guaranteeing the cleanliness of the blast furnace gas, and effectively protecting the smooth operation of the pipeline and equipment, and improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the front view section schematic diagram of the utility model embodiment;

[0014] Figure 2 It is Figure 1 The enlarged view of the middle A;

[0015] Figure 3 It is the overhead section schematic diagram of the filter cartridge of the utility model embodiment. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further described in detail below in combination with the drawings and specific embodiments, and it shall be explained that the embodiments and the features in the embodiments of the present application can be combined with each other without conflict.

[0017] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from the description herein, therefore, the protection scope of the utility model is not limited by the specific embodiments disclosed below.

[0018] As Figures 1-3 Indicated, the blast furnace gas purification device described in the embodiment includes the purification tank 1, the bottom of the purification tank 1 is provided with the gas inlet joint 2, the gas inlet joint 2 is connected with the gas inlet pipe 3 for conveying the gas, the bottom in the purification tank 1 is provided with the filter liquid 4 not passing through the gas inlet joint 2, the purification tank 1 is provided with the partition 5 at the position corresponding to the upper side of the filter liquid 4, the partition 5 is provided with a plurality of mounting holes, each mounting hole is provided with the filter core, the top of the purification tank 1 is provided with the exhaust port, the exhaust port is provided with the exhaust pipe 6;

[0019] The filter core includes the filter cartridge 7 vertically inserted in the mounting hole, the top of the filter cartridge 7 is horizontally provided with the shunt cylinder 8, the shunt cylinder 8 and the filter cartridge 7 are in communication with each other, the shunt cylinder 8 is vertically downwardly provided with the exhaust cylinder 9 at both ends, a plurality of exhaust holes 9a are uniformly arranged on the side wall of the exhaust cylinder 9, and the bottom end of the exhaust cylinder 9 is placed on the partition 5.

[0020] The filter cartridge 7 penetrates the partition 5, and the shunt cylinder 8 and the exhaust cylinder 9 are located above the partition 5.

[0021] The exhaust cylinder 9 is provided with a gas-permeable filter block 10.

[0022] Preferably, the filter block 10 is a honeycomb activated carbon block.

[0023] The inner wall of the filter cylinder 7 is provided with a plurality of vertical partition strips 11 in a circumferential direction.

[0024] The inner wall of the shunt cylinder 8 is provided with a plurality of convex points 12.

[0025] Since the temperature of the blast furnace gas during the filtration is far higher than 100 degrees Celsius, when the gas enters the filter liquid, steam is generated, which enters the inside of the filter core along the filter cylinder 7 and the shunt cylinder 8, and water droplets are generated on the inner wall of the filter cylinder 7 and the shunt cylinder 8. When the gas after being purified by the filter liquid 4 enters the filter cylinder 7 and the shunt cylinder 8, the water droplets on the filter cylinder 7 and the shunt cylinder 8 are captured again when the gas collides with the inner wall of the filter cylinder 7 and the shunt cylinder 8, the partition strips 11 and the convex points 12, thereby improving the capturing efficiency of the dust and the filtration effect of the gas.

[0026] The purification tank 1 is provided with a liquid supplementing pipe 13 below the partition plate 5.

[0027] The bottom of the purification tank 1 is further provided with a liquid discharging pipe 14.

[0028] The liquid supplementing pipe 13 is used to supplement the filter liquid 4 in the purification tank 1, and the filter liquid 4 is water, and the liquid discharging pipe 14 is used to discharge the filter liquid 4 and the impurities filtered by the filter liquid 4 in the purification tank 1.

[0029] The working principle of the utility model is as follows: the blast furnace gas enters the filter liquid 4 in the purification tank 1 through the gas inlet pipe 3 and the gas inlet joint, most of the dust particles are filtered out after the gas is filtered by the filter liquid 4, then the flue gas is discharged in the filter liquid 4 and enters the filter cylinder 7 of the filter core upwards, the flue gas enters the shunt cylinder 8 through the filter cylinder 7 for shunting, the flue gas is filtered twice in the filter cylinder 7 and the shunt cylinder 8, the water droplets on the inner wall of the filter cylinder 7 and the shunt cylinder 8 capture the residual fine dust particles, then the gas enters the exhaust cylinder 9 and passes through the filter block 10 placed inside, the filter block 10 filters the dust in the gas again, the gas filtered multiple times is discharged at the exhaust hole 9a and enters the space above the partition plate 5, and finally is discharged through the exhaust pipe 6 for subsequent processing operation.

[0030] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the present application and its practical application, and to thereby enable others skilled in the art to best utilize the present application with various modifications as are suited to the particular use contemplated.

Claims

1. A device for cleaning blast furnace gas, characterized in that: The purification tank is provided with an air inlet joint at the bottom, which is connected with an air inlet pipe for conveying coal gas; the bottom of the tank is provided with a filter liquid which is higher than the air inlet joint; a partition is arranged in the tank above the filter liquid; a plurality of mounting holes are arranged on the partition; a filter core is arranged in each mounting hole; an air outlet is arranged at the top of the tank; and an air outlet pipe is arranged at the air outlet. The filter core comprises a filter cylinder which is vertically inserted into the mounting hole; a shunt cylinder is horizontally arranged at the top of the filter cylinder; the shunt cylinder and the filter cylinder are in communication with each other; air outlet cylinders are vertically arranged at both ends of the shunt cylinder; a plurality of air outlet holes are uniformly arranged on the side wall of the air outlet cylinder; and the bottom end of the air outlet cylinder is placed on the partition.

2. The blast furnace gas cleaning device according to claim 1, characterized in that: A filter block which is permeable to air is placed in the air outlet cylinder.

3. The blast furnace gas cleaning device according to claim 2, characterized in that: The filter block is a honeycomb activated carbon block.

4. The blast furnace gas cleaning device according to claim 1, characterized in that: A plurality of vertical partition strips are uniformly arranged on the inner wall of the filter cylinder in the circumferential direction.

5. The blast furnace gas cleaning device according to claim 1, characterized in that: A plurality of convex points are uniformly arranged on the inner wall of the shunt cylinder.

6. The blast furnace gas cleaning device according to claim 1, characterized in that: A liquid supplement pipe is arranged on the purification tank below the partition.

7. The blast furnace gas cleaning device according to claim 6, characterized in that A liquid discharge pipe is further arranged at the bottom of the purification tank.

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