CN214211542U

CN214211542U - Coal injection distributor outlet valve pressure dredging device

Info

Publication number: CN214211542U
Application number: CN202022444587.9U
Authority: CN
Inventors: 陈曦
Original assignee: Nanjing Iron and Steel Co Ltd
Current assignee: Nanjing Iron and Steel Co Ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-09-17
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses a coal injection distributor outlet valve area is pressed pull throughs is connected with coal injection distributor outlet valve through setting up connecting portion, blows in high-pressure gas through purging the pipe and carries out the air current disturbance to the outlet valve, and not hard up plug is so that it is discharged through the blow off pipe and is received the powder sack and collect, avoids the free-space polluted environment. For the condition that the dredging is difficult to dredge, the dredging rod directly extends into the outlet valve pipeline to spray the blockage. The dredging device has the advantages of overall structure, simplicity in operation and convenience in use, and is beneficial to improving the working efficiency, reducing or eliminating environmental pollution factors and lightening the labor intensity of operators.

Description

Coal injection distributor outlet valve pressure dredging device

Technical Field

The utility model relates to a blast furnace coal injection device, in particular to a coal injection distributor outlet valve pressure dredging device.

Background

The valve at the outlet of the coal injection distributor of the blast furnace is blocked frequently, and the blockage is dredged with pressure. When the blockage is not serious, compressed air can be used for blowing and dredging, when the blockage is serious, a pipeline connected with a valve needs to be dismantled, and the pipeline is dredged by opening and closing the valve and utilizing the internal pressure of the distributor. And the valve pipeline is difficult to dredge successfully when the blockage is particularly serious, and impurities in the valve pipeline are difficult to discharge.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defects of the prior art, the utility model provides a coal injection distributor outlet valve area is pressed pull throughs, and the device can environmental protection efficient mediation coal injection distributor outlet valve.

The technical scheme is as follows: the utility model relates to a coal injection distributor outlet valve under-pressure dredging device, which comprises a main body, a dredging rod, a purging pipe, a blow-off pipe and a powder collecting cloth bag; the main body is provided with a columnar inner cavity, the front end of the main body is provided with a connecting part, and the connecting part is used for coaxially communicating the columnar inner cavity with an outlet valve of the coal injection distributor; the cylindrical inner cavity comprises a cavity part formed by the front end of the main body and a slide way part formed by the rear end of the main body, and the dredging rod is arranged in the cylindrical inner cavity in a penetrating way and can slide along the slide way part; the blowing pipe and the drain pipe are arranged on the main body, the blowing pipe is used for blowing high-pressure gas to the cavity part, and the drain pipe is connected with the powder collecting cloth bag and used for discharging blocking objects sprayed out of the cavity part.

Has the advantages that: this pull throughs is connected with coal injection distributor outlet valve through setting up connecting portion, blows in high-pressure gas through purging the pipe and carries out the air current disturbance to the outlet valve, and not hard up plug is so that it is collected through the blow off pipe drainage receipts powder sack, avoids the air to put the polluted environment. For the condition that the dredging is difficult to dredge, the dredging rod directly extends into the outlet valve pipeline to spray the blockage. The device has the advantages of overall structure, simple operation and convenient use, is favorable for improving the working efficiency, reduces or eliminates the environmental pollution factors and lightens the labor intensity of operators.

Drawings

FIG. 1 is a schematic cross-sectional view of the dredging device of the present invention;

fig. 2 is the sectional structure schematic diagram of the dredging device after being disassembled.

Detailed Description

As shown in fig. 1 and 2, the pressurized dredging device for the outlet valve of the coal injection distributor comprises a main body 1, a dredging rod 2, a purging pipe 3, a blow-off pipe 4 and a powder collecting cloth bag (not shown in the figure).

Specifically, the inner cavity of the main body 1 is a stepped cylindrical inner cavity 10, the part near the front end is a cavity part 101, the diameter of the cavity part is equivalent to that of an outlet valve of the coal injection distributor, the part near the rear end is a slideway part 102, and the diameter of the slideway part is smaller than that of the cavity part 1 and the diameter of the outlet valve. The front end of the main body 1 is provided with a connecting part 11, generally in the form of a flange or a screw thread, for connecting the main body 1 to the outlet valve and coaxially communicating the flow path of the cylindrical inner cavity 10 and the outlet valve.

The ventilation bar 2 is a long straight barrel of diameter comparable to or slightly smaller than the chute portion 102. It is arranged in the columnar inner cavity 10 in a penetrating way and slides along the sliding part 102, and when the condition that the blockage is difficult to dredge is met, the blockage is inserted into the pipeline of the outlet valve to loosen the blockage. In order to prevent the dredging bar 2 from being blown off and falling off, a stopper ring 21 is provided somewhere on the insertion cavity portion 101 thereof, and the outer diameter of the stopper ring 21 is set larger than the raceway portion 102, thereby forming a stopper.

The gland 5 is screwed to the rear end of the body 1 and has a sealing hole 51 formed therein for passing through the ventilation rod 2. The graphite sealing gasket is arranged inside to form sealing with the joints of the dredging rod 2 and the main body 1, so that high-pressure gas in the distributor is prevented from being blown out.

The purge tube 3 is connected to compressed air for blowing high pressure air into the chamber portion 101 and the outlet valve to disturb the blockage for loosening. Loosened blockage in the outlet valve is sprayed out and enters the sewage discharge pipe 4 through the cavity part 101, and the blockage is collected by the powder collecting cloth bag and is intensively sent back to the powder making system or is treated additionally.

Claims

1. The under-pressure dredging device for the outlet valve of the coal injection distributor is characterized by comprising a main body (1), a dredging rod (2), a purging pipe (3), a blow-off pipe (4) and a powder collecting cloth bag; the coal injection distributor is characterized in that the main body (1) is provided with a columnar inner cavity (10), the front end of the main body (1) is provided with a connecting part (11), and the connecting part (11) is used for coaxially communicating the columnar inner cavity (10) with an outlet valve of the coal injection distributor; the columnar inner cavity (10) comprises a cavity part (101) formed by the front end of the main body (1) and a slide way part (102) formed by the rear end of the main body (1), and the dredging rod (2) penetrates through the columnar inner cavity (10) and can slide along the slide way part (102); the blowing pipe (3) and the draining pipe (4) are arranged on the main body (1), the blowing pipe (3) is used for blowing high-pressure gas to the cavity part (101), and the draining pipe (4) is connected with the powder collecting cloth bag and used for discharging blocking substances sprayed out of the cavity part (101).

2. The coal injection distributor outlet valve pressure dredging device according to claim 1, further comprising a sealing gland (5), wherein the sealing gland (5) is connected to the rear end of the main body (1).

3. Coal injection distributor outlet valve pressure unclogging device according to claim 2, characterized in that the sealing gland (5) has a sealing hole (51) coaxial with the chute portion (102), the dredging rod (2) being inserted into the chute portion (102) from the sealing hole (51).

4. The coal injection distributor outlet valve pressure dredging device according to claim 2, wherein sealing gaskets are arranged among the main body (1), the dredging rod (2) and the sealing gland (5).

5. The coal injection distributor outlet valve pressure trip device of claim 1, wherein the cavity portion (101) has a larger diameter than the chute portion (102).

6. The coal injection distributor outlet valve pressure dredging device according to claim 5, wherein a baffle ring (21) is further arranged on the dredging rod (2), the baffle ring (21) is located in the cavity portion (101), and the size of the baffle ring (21) is larger than the diameter of the slideway portion (102).

7. The coal injection distributor outlet valve pressure dredging device according to claim 1, wherein the connecting part (11) is a flange or a screw thread.