CN223628344U - Blast furnace gas purification device - Google Patents

Abstract

This utility model discloses a blast furnace gas purification device, including a purification box. An air inlet connector is located at the bottom of the purification box, connecting to an air inlet pipe for transporting blast furnace gas. A filter liquid, submerged above the air inlet connector, is placed at the bottom of the purification box. A partition plate is positioned above the filter liquid within the purification box, and the partition plate has several mounting holes, each housing a filter element. An exhaust port is located at the top of the purification box, where an exhaust valve is installed. This utility model, by using a partition plate within the purification box, with the filter liquid below the partition plate and the filter elements on the partition plate, effectively filters and purifies particulate matter in the blast furnace gas. This ensures the cleanliness of the blast furnace gas, effectively protecting pipelines and equipment, and improving production efficiency.

Description

Blast furnace gas purifying device

Technical Field

The utility model relates to the technical field of waste gas treatment equipment, in particular to a blast furnace gas purifying device.

Background

The coke oven gas can be used as industrial fuel, is widely used for the steel rolling heating furnaces of steel enterprises and the power generation operation of power plants, contains a large amount of dust particles, if the coke oven gas is not effectively purified, impurities such as dust are easy to deposit in pipelines and equipment, so that the pipelines are blocked and the equipment is not smooth to operate, and the dust impurities can also cause the increase of system resistance, increase of energy consumption and influence on production efficiency, so that how to improve the purification effect of the blast furnace gas is important in ensuring the normal operation of the equipment.

Disclosure of utility model

The utility model aims to avoid the defects of the prior art and provide the blast furnace gas purifying device, thereby effectively solving the defects in the prior art.

The blast furnace gas purifying device comprises a purifying box, wherein the bottom of the purifying box is provided with an air inlet connector, the air inlet connector is connected with an air inlet pipe for conveying gas, the bottom in the purifying box is provided with filtrate which is over the air inlet connector, the purifying box is internally provided with a baffle plate at a position above the filtrate, the baffle plate is provided with a plurality of mounting holes, each mounting hole is internally provided with a filter element, the top of the purifying box is provided with an air outlet, and the air outlet is provided with an air exhaust pipe;

The filter element comprises a filter cylinder vertically inserted in the mounting hole, a shunt barrel is transversely arranged at the top of the filter cylinder and is mutually communicated with the filter cylinder, exhaust barrels are vertically and downwards arranged at two ends of the shunt barrel, a plurality of exhaust holes are uniformly distributed on the side wall of the exhaust barrel, and the bottom end of the exhaust barrel is placed on the partition plate.

Further, a breathable filter block is arranged in the exhaust barrel.

Further, the filter block is a honeycomb activated carbon block.

Further, a plurality of vertical parting strips are uniformly distributed on the inner wall of the filter cylinder along the circumferential direction.

Further, a plurality of salient points are uniformly distributed on the inner wall of the shunt barrel.

Further, a liquid supplementing pipe is arranged on the purifying box at a position corresponding to the lower part of the partition plate.

Further, a liquid discharge pipe is arranged at the bottom of the purifying box.

The technical scheme of the utility model has the beneficial effects that the separator is arranged in the purifying box, the filtrate is arranged below the separator, the filter element is arranged on the separator, and the filtrate 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 ensured, the smooth running of pipelines and equipment is further effectively protected, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic front view in section of an embodiment of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

Fig. 3 is a schematic top cross-sectional view of a filter cartridge according to an embodiment of the present utility model.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model can be more clearly understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, it being understood that embodiments of the utility model and features of the embodiments may be combined with each other without departing from the scope of the appended claims.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

As shown in fig. 1-3, the blast furnace gas purifying device in this embodiment includes a purifying box 1, an air inlet joint 2 is arranged at the bottom of the purifying box 1, the air inlet joint 2 is connected with an air inlet pipe 3 for conveying gas, a filtrate 4 which is over the air inlet joint 2 is arranged at the bottom of the purifying box 1, a baffle 5 is arranged at a position above the corresponding filtrate 4 in the purifying box 1, a plurality of mounting holes are arranged on the baffle 5, a filter element is arranged in each mounting hole, an air outlet is arranged at the top of the purifying box 1, and an air exhaust pipe 6 is arranged at the air outlet;

the filter core comprises a filter cylinder 7 vertically inserted in the mounting hole, a shunt barrel 8 is transversely arranged at the top of the filter cylinder 7 and is mutually communicated with the filter cylinder 7, exhaust barrels 9 are vertically and downwardly arranged at two ends of the shunt barrel 8, a plurality of exhaust holes 9a are uniformly distributed on the side wall of the exhaust barrel 9, and the bottom end of the exhaust barrel 9 is placed on the partition board 5.

The filter cartridge 7 penetrates through the partition plate 5, and the diversion cylinder 8 and the exhaust cylinder 9 are positioned above the partition plate 5.

A ventilation filter block 10 is arranged in the exhaust funnel 9.

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

A plurality of vertical parting strips 11 are uniformly distributed on the inner wall of the filter cylinder 7 along the circumferential direction.

A plurality of salient points 12 are uniformly distributed on the inner wall of the shunt barrel 8.

Because the temperature of blast furnace gas when filtering is far more than 100 ℃, when the gas enters into filtrate, steam can be generated, the steam can enter into the filter core along the filter cylinder 7 and the diversion cylinder 8, water drops are generated on the inner walls of the filter cylinder 7 and the diversion cylinder 8 by the steam, when the gas enters into the filter cylinder 7 and the diversion cylinder 8 after being purified by the filtrate 4, the preliminarily filtered gas collides with the inner walls of the filter cylinder 7 and the diversion cylinder 8, the partition bars 11 and the salient points 12, and the water drops on the filter cylinder 7 and the diversion cylinder 8 capture fine dust remained in the gas again, and the contact area between the partition bars 11 and the salient points 12 in the filter cylinder 7 and the diversion cylinder 8 is increased, so that the capturing efficiency of the dust is improved, and the filtering effect of the gas is further improved.

The purifying box 1 is provided with a liquid supplementing pipe 13 at a position corresponding to the lower part of the partition plate 5.

The bottom of the purifying box 1 is also provided with a drain pipe 14.

The liquid supplementing pipe 13 is used for supplementing the filtrate 4 into the purifying box 1, the filtrate 4 is water, and the liquid draining pipe 14 is used for draining the filtrate 4 and the filtered impurities in the purifying box 1.

The utility model has the working principle that blast furnace gas enters a filtrate 4 in a purifying box 1 through an air inlet pipe 3 and an air inlet joint, most of dust large particles are filtered after the clean filtrate 4 of the gas is filtered, then the flue gas is discharged in the filtrate 4 and enters a filter cartridge 7 of a filter element upwards, the flue gas enters a diversion drum 8 through the filter cartridge 7 for diversion, the flue gas is subjected to secondary filtration in the filter cartridge 7 and the diversion drum 8, water drops on the inner walls of the green ventilation drum 7 and the diversion drum 8 can catch residual fine dust particles, then the gas enters an exhaust drum 9 and passes through a filter block 10 placed in the exhaust drum, the filter block 10 filters dust in the gas again, the gas subjected to multiple filtration is discharged outside at an exhaust hole 9a and enters a space above a partition plate 5, and finally the gas is discharged outside through an exhaust pipe 6 for subsequent treatment operation.

The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (7)

1. The blast furnace gas purifying device is characterized by comprising a purifying box, wherein the bottom of the purifying box is provided with an air inlet connector, the air inlet connector is connected with an air inlet pipe for conveying gas, the bottom in the purifying box is provided with filtrate which is over the air inlet connector, a baffle plate is arranged in the purifying box at a position corresponding to the upper part of the filtrate, a plurality of mounting holes are formed in the baffle plate, a filter element is arranged in each mounting hole, the top of the purifying box is provided with an air outlet, and an air exhaust pipe is arranged at the air outlet;

The filter element comprises a filter cylinder vertically inserted in the mounting hole, a shunt barrel is transversely arranged at the top of the filter cylinder and is mutually communicated with the filter cylinder, exhaust barrels are vertically and downwards arranged at two ends of the shunt barrel, a plurality of exhaust holes are uniformly distributed on the side wall of the exhaust barrel, and the bottom end of the exhaust barrel is placed on the partition plate.

2. A blast furnace gas cleaning device according to claim 1, wherein a gas permeable filter block is arranged in the exhaust pipe.

3. A blast furnace gas cleaning device according to claim 2, wherein the filter block is a honeycomb activated carbon block.

4. The blast furnace gas purifying device according to claim 1, wherein a plurality of vertical parting strips are uniformly distributed on the inner wall of the filter cylinder along the circumferential direction.

5. The blast furnace gas purifying device according to claim 1, wherein a plurality of salient points are uniformly distributed on the inner wall of the diversion cylinder.

6. A blast furnace gas purifying apparatus according to claim 1, wherein a liquid replenishing pipe is provided on the purifying tank at a position corresponding to a position below the partition plate.

7. The blast furnace gas cleaning device according to claim 6, wherein a drain pipe is further provided at the bottom of the cleaning tank.