Material accumulation prevention purging device for belt interlayer of coal feeder in coal injection workshop

Abstract

The utility model relates to an anti-material-accumulation purging device for a belt interlayer of a coal feeder in a coal injection workshop, and belongs to the technical field of coal injection feeders. Comprising a purging pipe, one end of the purging pipe is open, and the other end of the purging pipe is closed; a purging hole unit is formed in the purging pipe, the purging hole unit and the belt tail wheel are arranged in parallel, and the purging direction of the purging unit faces the return belt interlayer; the opening end of the purging pipe penetrates through the side plate of the coal feeder and is fixed on the box body of the coal feeder, the opening end of the purging pipe is connected with a gas source, and after gas is introduced into the purging pipe, accumulated materials on an interlayer of a return belt are purged through the purging hole unit, so that the interlayer of the belt is cleaned. A pneumatic ball valve is further arranged at the opening end of the purging pipe. The device is simple in structure and convenient to operate, ventilation purging is conducted on the return belt at the tail wheel, an interlayer of the return belt is cleaned, material accumulation in the tail wheel is avoided, and blast furnace production is guaranteed.

Description

Technical Field

[0001] The utility model relates to a material accumulation prevention and purge device for a belt interlayer of a coal feeder in a coal injection workshop, belonging to the technical field of coal injection feeders. Background Art

[0002] During the operation of the coal injection feeder, the interior of the coal feeder is in a negative pressure state and the internal airflow is complex. Some raw coal moves with the airflow inside the coal feeder, and the raw coal often accumulates in the coal feeder belt interlayer. The coal feeder belt interlayer cleaner cannot completely clean the belt interlayer accumulation, and some raw coal will enter the tail wheel. After running for a long time, the accumulation in the tail wheel increases, which will cause the coal feeder to deviate. Especially when there is suspended material in the raw coal bin above the coal feeder, after the vibrator is activated, a large amount of raw coal falls directly into the coal feeder belt interlayer, which can easily cause the coal feeder tail wheel bearing seat to crack, and the coal feeder cannot operate, causing the mill to stop, and eventually leading to coal shortage in the blast furnace, affecting production. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a coal injection workshop coal feeder belt interlayer anti-accumulation blowing device based on the above-mentioned existing technology. When the coal feeder is running, the return belt at the tail wheel is ventilated and purged to avoid material accumulation in the tail wheel and ensure blast furnace production.

[0004] The technical solution adopted by the present invention to solve the above-mentioned problems is: a blowing device for preventing material accumulation in the belt interlayer of a coal feeder in a coal injection workshop, comprising a blowing pipe, one end of the blowing pipe is open, and the other end is closed; a blowing hole unit is provided on the blowing pipe, the blowing hole unit is arranged parallel to the belt tail wheel, and the blowing direction of the blowing unit is toward the return belt interlayer; the open end of the blowing pipe passes through the coal feeder side plate and is fixed to the coal feeder case, the open end of the blowing pipe is connected to the gas source, and after the gas enters the blowing pipe, the accumulated material on the return belt interlayer is blown away through the blowing hole unit, thereby cleaning the belt interlayer.

[0005] The purge pipe is an L-shaped structural member, and the closed end of the purge pipe is aligned with the edge of the return belt.

[0006] The open end of the purge pipe is also provided with a pneumatic ball valve.

[0007] The purge hole unit includes a plurality of purge holes arranged at even intervals, and the angle between the purge angle of the purge holes and the horizontal plane is 40-50 degrees.

[0008] The horizontal distance between the purge pipe and the belt tail wheel is 8 to 12 cm, and the vertical distance between the purge pipe and the return belt interlayer is 4 to 6 cm.

[0009] Compared with the existing technology, the advantages of the utility model are: a coal injection workshop coal feeder belt interlayer anti-accumulation blowing device, simple structure, easy operation, ventilation and blowing of the return belt at the tail wheel, cleaning the return belt interlayer, avoiding material accumulation in the tail wheel, and ensuring blast furnace production. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of a device for blowing off material accumulation in the interlayer of a coal feeder belt in a coal injection workshop according to an embodiment of the present invention;

[0011] In the figure, 1 is a pneumatic ball valve, 2 is a purge pipe, 3 is a purge hole, 4 is a return belt, 5 is a coal feeder housing, and 6 is a belt tail pulley. DETAILED DESCRIPTION

[0012] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0013] like Figure 1 As shown, in this embodiment, a purge device for preventing material accumulation in the interlayer of the coal feeder belt in a coal injection workshop comprises an L-shaped purge pipe 2, one end of which is open and the other end is closed. The closed end of the purge pipe 2 is arranged in the coal feeder housing 5, and the closed end of the purge pipe 2 is aligned with the edge of the return belt 4. A purge hole unit is provided on the purge pipe 2, and the purge hole unit is arranged parallel to the belt tail wheel 6, and the purge direction of the purge hole unit is toward the interlayer of the return belt 4. The open end of the purge pipe 2 passes through the side panel of the coal feeder housing 5 and is fixed on the coal feeder housing. The open end of the purge pipe 2 is arranged outside the coal feeder housing 5. The open end of the purge pipe 2 is connected to the gas source, and the gas enters the purge pipe 2, and then the accumulated material on the interlayer of the return belt is purged through the purge hole unit, thereby cleaning the belt interlayer and avoiding material accumulation in the tail wheel.

[0014] The purge hole unit includes a plurality of purge holes 3 arranged at even intervals. The purge directions of the purge holes 3 are arranged obliquely, and the angle between the purge holes 3 and the horizontal plane is 45°.

[0015] The horizontal distance between the purge pipe 2 and the belt tail pulley 6 is 10 cm, and the vertical distance between the purge pipe 2 and the interlayer of the return belt 4 is 5 cm.

[0016] A pneumatic ball valve 1 is also installed at the open end of the purge pipe. It controls the flow and shutoff of the purge pipe. The valve is controlled by a controller. Opening the valve allows the purge pipe to flow, allowing gas to flow through the pipe and onto the return belt interlayer, thereby cleaning it. Closing the valve shuts off the pipe, stopping the purge.

[0017] The application has a simple structure and is easy to operate. The return belt at the tail wheel is ventilated and purged to clean the interlayer of the return belt, thereby avoiding material accumulation in the tail wheel and ensuring blast furnace production.

[0018] In addition to the above embodiments, the present invention also includes other implementation methods. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of protection of the claims of the present invention.

Claims

1. A device for blowing off material accumulation in the interlayer of the coal feeder belt in a coal injection workshop, characterized by: It includes a purge pipe, one end of which is open and the other end is closed; a purge hole unit is provided on the purge pipe, the purge hole unit is arranged parallel to the belt tail pulley, and the purge direction of the purge unit is toward the return belt interlayer; the open end of the purge pipe passes through the coal feeder side panel and is fixed to the coal feeder case, the open end of the purge pipe is connected to the gas source, and after the gas enters the purge pipe, it blows the accumulated material on the return belt interlayer through the purge hole unit, thereby cleaning the belt interlayer.

2. The device for blowing off material accumulation in the interlayer of the coal feeder belt in a coal injection workshop according to claim 1, characterized in that: The purge pipe is an L-shaped structural member, and the closed end of the purge pipe is aligned with the edge of the return belt.

3. The device for blowing off material accumulation in the interlayer of the coal feeder belt in a coal injection workshop according to claim 1, characterized in that: The open end of the purge pipe is also provided with a pneumatic ball valve.

4. The device for blowing off material accumulation in the interlayer of the coal feeder belt in a coal injection workshop according to claim 1, characterized in that: The purge hole unit includes a plurality of purge holes arranged at even intervals, and the angle between the purge angle of the purge holes and the horizontal plane is 40-50 degrees.

5. The device for blowing off material accumulation prevention in the interlayer of the coal feeder belt in a coal injection workshop according to claim 1, characterized in that: The horizontal distance between the purge pipe and the belt tail wheel is 8 to 12 cm, and the vertical distance between the purge pipe and the return belt interlayer is 4 to 6 cm.

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