CN216909615U

CN216909615U - Device for preventing dry-method ash block of blast furnace from blocking suction and exhaust vehicle pipeline

Info

Publication number: CN216909615U
Application number: CN202122831715.XU
Authority: CN
Inventors: 客海滨; 董国强; 袁雪涛; 王浙航; 客文净
Original assignee: Hegang Leting Steel Co Ltd
Current assignee: Hegang Leting Steel Co Ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-07-08
Anticipated expiration: 2031-11-18

Abstract

The utility model provides a avoid device of blast furnace dry process ash block jam suction and exhaust car pipeline, belongs to blast furnace sack dry process ash unloading equipment technical field for prevent that blast furnace dry process ash block from blockking up suction and exhaust car pipeline. The technical scheme is as follows: the ash discharging box is characterized in that inlet flanges are welded on the upper portions and the bottom surfaces of two opposite side surfaces of the ash discharging box respectively, outlet flanges and ash discharging flanges are welded on the upper portions and the bottom surfaces of the two opposite side surfaces of the ash discharging box respectively, a filter screen is installed in the box body of the ash discharging box, the upper end of the filter screen is connected with the inner wall of the box body above the inlet flange on one side of the inlet flange, the lower end of the filter screen is connected with the inner wall of the box body below the outlet flange on one side of the ash discharging flange, the inlet flange of the ash discharging box is connected with a large ash bin through an ash discharging pipe, the outlet flanges of the ash discharging box are connected with a suction and discharge vehicle through KL pull rod type metal hoses, and the ash discharging flanges of the ash discharging box are connected in a sealing mode through steel plates and bolts. The device has simple structure and convenient and fast operation method, can reduce the blockage rate of the suction and discharge vehicle, improves the dry ash discharge capacity of the blast furnace, reduces the labor intensity and avoids the dust suction and raising of the dry method.

Description

Device for preventing dry-method ash block of blast furnace from blocking suction and exhaust vehicle pipeline

Technical Field

The utility model relates to a device capable of preventing a blast furnace dry method ash block from blocking a suction and exhaust vehicle pipeline, belonging to the technical field of blast furnace cloth bag dry method ash unloading equipment.

Background

The dust removed by the bag-type dust collector is sucked into the suction and discharge vehicle from the big dust bin through the dust discharge pipe and then discharged into the suction and discharge tank. In the suction and exhaust process, because the dedusting ash contains a certain amount of moisture, the dedusting ash is easy to agglomerate in a large ash bin, blocks an ash exhaust pipeline, and needs to be manually cleaned, so that the time and the labor are consumed, the field environment pollution is caused, and even the unplanned damping down of the blast furnace can be caused in serious conditions, and the normal production of the blast furnace is severely restricted. Therefore, it is necessary to design and develop a device for preventing the dry ash block of the blast furnace from blocking the pipeline of the suction and exhaust truck, so as to ensure the smooth operation of the suction and exhaust truck.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a device for preventing the blast furnace dry ash block from blocking the suction and exhaust vehicle pipeline, which can completely filter the caking in the dry cloth bag ash, improve the equipment starting rate, reduce the blockage rate of the pipeline, the valve and the suction and exhaust vehicle caused by the caking of the dust and create conditions for the stable production of the blast furnace.

The technical scheme for solving the technical problems is as follows:

a device for preventing the ash block of the blast furnace dry method from blocking the pipeline of a suction and exhaust vehicle comprises an ash discharge pipe, an ash exhaust box and a KL pull rod type metal hose, wherein the ash exhaust box is a steel rectangular box body, round holes are respectively arranged on the upper part and the bottom surface of two opposite side surfaces of the ash exhaust box, an inlet flange and an outlet flange are respectively welded on the round holes on the two opposite side surfaces, an ash exhaust flange is welded on the round hole on the bottom surface, the ash exhaust flange is positioned on one side, close to the outlet flange, of the bottom surface of the ash exhaust box, the bottom surface of one side of the inlet flange is higher than that of one side of the outlet flange, the inclination angle is 10-40 degrees, a filter screen is arranged in the box body of the ash exhaust box, the upper end of the filter screen is connected with the inner wall of the box body above the inlet flange on one side of the inlet flange, the lower end of the filter screen is connected with the inner wall of the box body below the outlet flange on one side of the ash exhaust flange, and two sides of the filter screen are respectively connected with two side surfaces of the inner wall of the box body, the inlet flange of the ash discharging box is connected with the large ash bin through an ash discharging pipe, the outlet flange of the ash discharging box is connected with the suction and discharge vehicle through a KL pull rod type metal hose, a steel plate is placed on the end face of the ash discharging flange of the ash discharging box, screw holes in the surface of the steel plate are opposite to the circumferential screw holes of the ash discharging flange, and the steel plate and the ash discharging flange are fastened and connected through bolts.

According to the device for preventing the dust block of the blast furnace dry method from blocking the pipeline of the suction and exhaust truck, steel pipes with the same diameter as the round holes are welded on the round holes on the two opposite side surfaces and the bottom surface of the box body of the dust exhaust box respectively, the length of each steel pipe is 5-15cm, the inlet flange, the outlet flange and the dust exhaust flange are welded with the other ends of the steel pipes respectively, and support legs are welded at four corners of the bottom surface of the box body of the dust exhaust box respectively.

According to the device for preventing the ash block of the blast furnace dry method from blocking the suction and exhaust vehicle pipeline, the filter screen is manufactured by welding the longitudinal steel bars and the transverse steel bars, the longitudinal steel bars and the transverse steel bars are respectively arranged in parallel and are perpendicularly welded and connected, the distance between every two adjacent longitudinal steel bars is 3-7cm, and the distance between every two adjacent transverse steel bars is 5-10 cm.

The utility model has the beneficial effects that:

the ash discharging box is connected between the large ash bin and the suction and discharge vehicle, the filter screen is installed in the ash discharging box, the dust is sucked into the suction and discharge vehicle from the large ash bin through the ash discharging box, agglomerations in the dust are intercepted by the filter screen in the ash discharging box, the agglomerations can be discharged from an ash discharging flange of the ash discharging box and cannot enter the suction and discharge vehicle, and the blockage of pipelines, valves and the suction and discharge vehicle is avoided.

The utility model has the characteristics of simple structure, convenient and fast operation method, long service life, seamless connection, improved equipment starting rate and reduced blockage rate of the suction and discharge vehicle, improves the dry ash discharge capacity of the blast furnace, reduces the labor intensity of frequent disassembly of the ash conveying pipe by workers, and avoids the dry ash suction and dust raising caused by frequent disassembly of the ash conveying pipe.

Drawings

FIG. 1 is a schematic structural view of the present invention

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a side view of FIG. 1;

fig. 4 is a schematic view of the state of use of the present invention.

The figures are labeled as follows: the device comprises a large ash bin 1, a suction and discharge vehicle 2, an ash discharge pipe 3, an ash discharge box 4, a KL pull rod type metal hose 5, an inlet flange 6, an outlet flange 7, an ash discharge flange 8, a filter screen 9, a steel pipe 10 and support legs 11.

Detailed Description

The utility model consists of an ash discharging pipe 3, an ash discharging box 4, a KL pull rod type metal hose 5, an inlet flange 6, an outlet flange 7, an ash discharging flange 8 and a filtering screen 9.

The ash discharge box 4 is a steel rectangular box body, round holes are respectively formed in the upper portion and the bottom surface of two opposite side surfaces of the ash discharge box 4, steel pipes 10 with the same diameter are respectively welded to the round holes, and the length of each steel pipe 10 is 5-15 cm. The outer ends of steel pipes 10 on two opposite side surfaces of the box body are respectively welded with an inlet flange 6 and an outlet flange 7, the outer end of the steel pipe 10 on the bottom surface is welded with an ash discharging flange 8, and the ash discharging flange 8 is positioned on one side, close to the outlet flange 7, of the bottom surface of the ash discharging box 4.

The drawing shows that an inlet flange 6 of an ash discharge box 4 is connected with a large ash bin 1 through an ash discharge pipe 3, an outlet flange 7 of the ash discharge box 4 is connected with a suction and discharge vehicle 2 through a KL pull rod type metal hose 5, a steel plate is placed on the end face of an ash discharge flange 8 of the ash discharge box 4, a screw hole in the surface of the steel plate is opposite to a circumferential screw hole of the ash discharge flange 8, and the steel plate is tightly connected with the ash discharge flange 8 through bolts to seal the ash discharge flange 8. When the dust removing device is used, dust removing ash enters the ash discharging box 4 from the large ash bin 1 through the ash discharging pipe 3 and is conveyed to the suction and discharge vehicle 2 through the KL pull rod type metal hose 5, and caking in the dust removing ash is discharged from the ash discharging flange 8 on the bottom surface of the opened ash discharging box 4.

The bottom surface of the ash discharge box 4 is shown to be an inclined surface, the bottom surface of the inlet flange 6 side is higher than the outlet flange 7 side, and the inclined angle is 10-40 degrees. The inclined bottom surface can lead the caking in the dust to be automatically collected above the outlet flange 7, thereby facilitating the discharge operation.

The figure shows that a filter screen 9 is arranged in the box body of the ash discharging box 4, the upper end of the filter screen 9 is connected with the box body inner wall above the inlet flange 6 on one side of the inlet flange 6, the lower end of the filter screen 9 is connected with the box body inner wall below the outlet flange 7 on one side of the ash discharging flange 8, and the two sides of the filter screen 9 are respectively connected with the two side surfaces of the box body inner wall. The filter screen 9 is used for blocking the caking in the dust, preventing the caking in the dust from entering the suction and discharge vehicle 2, and the caking is intercepted by the filter screen 9, stored behind the filter screen 9 and then discharged from the dust discharge flange 8.

The filter screen 9 is manufactured by welding longitudinal and transverse steel bars, a plurality of longitudinal steel bars and a plurality of transverse steel bars are respectively arranged in parallel, the longitudinal steel bars and the transverse steel bars are vertically welded and connected, the distance between every two adjacent longitudinal steel bars is 3-7cm, and the distance between every two adjacent transverse steel bars is 5-10 cm.

The four corners of the bottom surface of the ash discharge box 4 are welded with support legs 11 respectively for supporting the box body of the ash discharge box 4, and the support legs 11 can be made of steel sections such as angle steel, channel steel and the like or steel pipes.

The working process of the utility model is as follows:

when ash needs to be discharged from the large ash bin 1, one end of the ash discharge pipe 3 is connected with an ash discharge port of the large ash bin 1, the other end of the ash discharge pipe 3 is connected with an inlet flange 6 of the ash discharge box 4, an outlet flange 7 of the ash discharge box 4 is connected with an ash inlet of the suction and discharge vehicle 2 through a KL (draw bar type) metal hose 5, and an ash discharge flange 8 on the bottom surface of the ash discharge box 4 is sealed;

starting the dust absorption equipment of the dust absorption and discharge vehicle 2, enabling the dust to enter the dust absorption and discharge vehicle 2 from the large dust bin 1 through the dust discharge box 4, intercepting caking in the dust by a filter screen 9 in the box body of the dust discharge box 4 and then falling to the bottom of the box body in the dust absorption process, regularly opening a sealing steel plate of a dust discharge flange 8 positioned at the bottom of the box body by the dust discharge box 4 to clean the caking,

one embodiment of the utility model is as follows:

the diameter of the ash discharge pipe 3 is 150mm, and the length is 6500 mm;

the length of the ash discharging box 4 is 500mm, the width is 300mm, the height is 600mm, the thickness of the steel plate is 10mm, the diameter of the welded steel pipe 10 on the two side surfaces and the bottom surface of the box body is 150mm, and the length is 100 mm;

the KL pull rod type metal hose 5 is 150mm in diameter and 5000mm in length;

the diameter of the steel bars of the filtering screen 9 is 12mm, the distance between the longitudinal steel bars is 50mm, and the distance between the transverse steel bars is 70 mm.

Claims

1. The utility model provides a avoid device of blast furnace dry process ash block jam suction and exhaust car pipeline which characterized in that: it includes ash discharging pipe (3), ash discharging box (4), KL pull rod formula metal collapsible tube (5), ash discharging box (4) is the rectangular box of steel, there is the round hole respectively on two opposite flank upper portions and the bottom surface of ash discharging box (4), round hole on two opposite flank welds import flange (6) and outlet flange (7) respectively, round hole welding ash discharging flange (8) on the bottom surface, ash discharging flange (8) are located one side that ash discharging box (4) bottom surface is close to outlet flange (7), the bottom surface of ash discharging box (4) is the inclined plane, the bottom surface of import flange (6) one side is higher than outlet flange (7) one side, inclination is 10-40, install filter screen (9) in ash discharging box (4)'s the box, the upper end of filter screen (9) is connected with the box inner wall of import flange (6) top of inlet flange (6) one side, the lower extreme of filter screen (9) and the inner wall below outlet flange (7) of ash discharging flange (8) one side are connected, the lower extreme of filter screen (9) is connected with the box inner wall The two sides of the filter screen (9) are respectively connected with the two side faces of the inner wall of the box body, an inlet flange (6) of the ash discharge box (4) is connected with the large ash bin (1) through an ash discharge pipe (3), an outlet flange (7) of the ash discharge box (4) is connected with the suction and discharge vehicle (2) through a KL pull rod type metal hose (5), a steel plate is placed on the end face of the ash discharge flange (8) of the ash discharge box (4), a screw hole is formed in the surface of the steel plate and is opposite to the circumferential screw hole of the ash discharge flange (8), and the steel plate and the ash discharge flange (8) are fastened and connected through bolts.

2. The device for avoiding the blockage of the suction and exhaust vehicle pipeline by the dry method ash block of the blast furnace according to claim 1 is characterized in that: the two opposite side faces and the round holes in the bottom face of the box body of the ash discharging box (4) are respectively welded with steel pipes (10) with the same diameter as the round holes, the length of each steel pipe (10) is 5-15cm, the inlet flange (6), the outlet flange (7) and the ash discharging flange (8) are respectively welded with the other ends of the steel pipes (10), and four corners of the bottom face of the box body of the ash discharging box (4) are respectively welded with support legs (11).

3. The device for avoiding the blockage of the suction and exhaust vehicle pipeline by the dry method ash block of the blast furnace according to claim 1 is characterized in that: the filtering screen (9) is manufactured by welding longitudinal and transverse steel bars, the longitudinal steel bars and the transverse steel bars are respectively arranged in parallel, the longitudinal steel bars and the transverse steel bars are perpendicularly welded and connected, the distance between every two adjacent longitudinal steel bars is 3-7cm, and the distance between every two adjacent transverse steel bars is 5-10 cm.