CN217052276U - Movable blast furnace coal dust collector - Google Patents

Abstract

The utility model relates to a steel mill smelting field, namely a mobile blast furnace coal dust collector, which is used for collecting residual coal dust in a blast furnace coal injection pipeline. The device comprises a trolley, a recovery tank body is fixedly mounted on the trolley, a powder discharge valve is arranged at the lower part of the recovery tank body, an exhaust valve playing a role in reducing pressure is arranged at the upper part of the recovery tank body, a stainless steel diffusing filter plate for filtering coal powder is mounted on the exhaust valve, a valve connected with a coal powder pipeline interface is also mounted on the side surface of the recovery tank body, and a coal powder recovery tank is further mounted at the lower part of the whole tank body. The coal powder recycling device can automatically recycle pipeline coal powder according to the requirement of a blast furnace, is convenient to operate and install, saves time and labor, is safe, reduces the production cost, and is energy-saving and environment-friendly.

Description

Movable blast furnace coal powder collector

Technical Field

The utility model relates to a steel mill smelting field, namely a mobile blast furnace coal dust collector, which is used for collecting residual coal dust in a blast furnace coal injection pipeline.

Background

In the prior art, each tuyere for blast furnace smelting is provided with a pipeline, the medium in the pipeline is pulverized coal, and the function is to distribute and blow the pulverized coal into the blast furnace through the pipeline, so that the smelting rule of the blast furnace is changed, and the coal gas amount and the blowing kinetic energy in the blast furnace are increased. After each blast furnace injection pipeline is used for a period of time, the pipeline is worn. Or impurities in the pipelines block the pipelines in the blast furnace blowing process, and the fault pipelines need to be processed. The pulverized coal in the pipeline belongs to inflammable and explosive substances, and is required to be externally connected with nitrogen or compressed air to be discharged and then maintained. If the pulverized coal in the pipeline is directly discharged into regional air, regional environmental pollution, pulverized coal waste and high production cost of the blast furnace can be caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a movable type blast furnace pulverized coal collector which has the advantages of dust-free emission, environmental protection and cost reduction.

The technical solution of the utility model is that: a movable blast furnace coal dust collector is characterized by comprising a trolley, wherein a recovery tank body is fixedly arranged on the trolley, the lower part of the recovery tank body is provided with a dust discharge valve, the upper part of the recovery tank body is provided with an exhaust valve for reducing pressure, the exhaust valve is provided with a stainless steel diffusing filter plate for filtering coal dust, the side surface of the recovery tank body is also provided with a valve connected with a coal dust pipeline connector, and the lower part of the whole tank body is also provided with a coal dust recovery tank.

The utility model has the advantages that: the pipeline pulverized coal can be automatically recovered according to the requirements of the blast furnace, the operation and the installation are convenient, the time and the labor are saved, the safety is realized, the production cost is reduced, and the energy conservation and the environmental protection are realized.

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Detailed Description

Referring to fig. 1, the part names are as follows: the device comprises a recovery tank body 1, a powder discharge valve 2, an exhaust valve 3, a stainless steel diffusing filter plate 4, a purging valve 5, a coal powder recovery tank 6, a trolley 7 and a support 8.

Referring to fig. 1, a mobile pulverized coal recovery apparatus is designed according to the field environment because the blast furnace has 30 tuyeres. The mobile blast furnace coal dust collector comprises a trolley 7, which is convenient for moving equipment. The trolley 7 is fixedly provided with a recovery tank body 1 and is fixed on a trolley body bracket 8. The lower part of the recovery tank body 1 is provided with a pulverized coal discharge valve 2 (DN 50 mm) for controlling the discharge of pulverized coal in the tank. An exhaust valve 3 (DN 32 mm) which has the function of pressure reduction is arranged at the upper part of the recovery tank body 1, and a stainless steel diffusing filter plate 4 which filters the coal dust is arranged on the exhaust valve 3, thereby filtering the coal dust and playing the role of environmental protection. And a purging valve 5 (DN 32 mm) connected with a coal powder pipeline interface is also arranged on the side surface of the recovery tank body 1, and the coal powder in the pipeline is discharged. A coal dust recovery groove 6 is also arranged at the lower part of the whole recovery tank body 1, when the tank body is full of coal dust, the coal dust in the tank is discharged to the coal dust recovery groove 6, and then is sent back to the coal injection operation area to be injected into the blast furnace again. The coal powder in the blast furnace pipeline is only required to be discharged into a collector, and then the ash is discharged into a coal powder recovery tank 6 and then is sent back to a coal injection system.

The use method or the working principle comprises the following steps: the movable blast furnace coal dust collector is pushed to the position of a pipeline to be processed, the flexible connection of the pipeline is disassembled to be connected with the interface of the movable blast furnace coal dust collector, the interface valve is opened, the exhaust valve 3 is opened, and after the powder discharge valve 2 is closed, external nitrogen or compressed air of the coal injection pipeline is opened to blow the coal dust in the pipeline into the recovery tank body 1. When the coal dust in the recovery tank body 1 is full after multiple uses, the lower powder discharge valve 2 is opened, and the coal dust is discharged into the coal dust recovery tank 6 and then sent back to the coal injection operation area.

The above description is only for the purpose of illustrating the embodiments of the present invention, and the various illustrations should not be construed as limiting the essential contents of the present invention.

Claims (1)

1. The movable blast furnace coal dust collector is characterized by comprising a trolley (7), a recovery tank body (1) is fixedly mounted on the trolley (7), a dust discharge valve (2) is arranged on the lower portion of the recovery tank body (1), an exhaust valve (3) playing a role in pressure reduction is arranged on the upper portion of the recovery tank body (1), a stainless steel diffusing filter plate (4) for filtering coal dust is mounted on the exhaust valve (3), a purging valve (5) connected with a coal dust pipeline interface is also mounted on the side surface of the recovery tank body (1), and a coal dust recovery tank (6) is further mounted on the lower portion of the whole recovery tank body (1).

Images