CN215843517U

CN215843517U - Quick plugging device of mill coal bunker

Info

Publication number: CN215843517U
Application number: CN202122236766.8U
Authority: CN
Inventors: 单良杰; 艾立军; 滕雪亮; 胡绍磊; 李广; 于淼; 王志伟; 邵锡伟; 蒋益; 陈付振; 吴玉治; 李军杰
Original assignee: Angang Steel Co Ltd
Current assignee: Angang Steel Co Ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-02-18
Anticipated expiration: 2031-09-15

Abstract

The utility model relates to the technical field of coal bins of coal mills, in particular to a quick leak stopping device for a coal bin of a mill. Comprises a tension rod, an external sleeve box, a chuck, a T-shaped pressure head and a sheath; sharp bulges are arranged at two ends of the chuck, the chuck is hinged to one end of the tension rod, the sheath is sleeved on the tension rod, and the chuck is fixed through the sheath so as not to turn over; when the coal bunker clamping device is used, the sharp bulge of the clamping head is pressed into a crack on the wall of the coal bunker of the mill, the sheath is taken down from the tension rod, the tension rod is rotated, and the clamping head is overturned and clamped on the wall of the coal bunker; the external sleeve box is sleeved on the tensioning rod, the stud is arranged at the other end of the tensioning rod, the T-shaped pressure head is in threaded connection with the stud, and the external sleeve box is tightly pressed on the bin wall through the T-shaped pressure head and the chuck. The coal bin of the coal mill is quickly blocked, and the safe and continuous production without shutdown of a coal powder mill system is ensured.

Description

Quick plugging device of mill coal bunker

Technical Field

The utility model relates to the technical field of coal bins of coal mills, in particular to a quick leak stopping device for a coal bin of a mill.

Background

Most coal powder mills of iron making departments of iron and steel enterprises need to add 10% -15% of coke powder, recycled dust removal ash and other industrial waste solid particles into raw coal for cost control reasons. And adding water into the mixture by a spraying stirrer, and then throwing the mixture into an original coal bed on a belt, and conveying the mixture to a pulverized coal bin by a belt system. As the indexes of water absorption, specific gravity, water absorption and the like of various mixed materials are different, the raw coal bin structure of a coal mill raw material system increases the friction probability and increases the abrasion of a mill coal bin due to uneven mixing of pulverized coal particle raw coal and waste solid particles and the existence of sundries such as large particles, coal gangue and the like in the pulverized coal raw coal in the production process.

When a coal bunker leaks, the structure of the coal bunker needs to be repaired, the operation can be carried out only by clearing and discharging the coal bunker at present, the machine needs to be stopped, and the coal bunker can be fed into the coal bunker after the cleaning of the coal bunker to be welded and repaired to recover the production. The maintenance time is long, the procedure is complicated, the limited factor is too many, the internal structure of the coal bin of the mill is narrow, the personnel are easy to suffocate with nitrogen, the consequences are very serious, the life health of workers is harmed, and the production is influenced.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a quick leak stopping device for a coal bunker of a mill. The coal bin of the coal mill is quickly blocked, and the safe and continuous production without shutdown of a coal powder mill system is ensured.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a mill coal bunker quick plugging device comprises a tension rod, an external sleeve box, a chuck, a T-shaped pressure head and a sheath; sharp bulges are arranged at two ends of the chuck, the chuck is hinged to one end of the tension rod, the sheath is sleeved on the tension rod, and the chuck is fixed through the sheath so as not to turn over; when the coal bunker clamping device is used, the sharp bulge of the clamping head is pressed into a crack on the wall of the coal bunker of the mill, the sheath is taken down from the tension rod, the tension rod is rotated, and the clamping head is overturned and clamped on the wall of the coal bunker; the external sleeve box is sleeved on the tensioning rod, the stud is arranged at the other end of the tensioning rod, the T-shaped pressure head is in threaded connection with the stud, and the external sleeve box is tightly pressed on the bin wall through the T-shaped pressure head and the chuck.

The bottom surface of the external sleeve box is matched with the wall of the coal bin of the mill.

And a sealing gasket is arranged on the bottom surface of the external sleeve box.

And the top surface of the external sleeve box is provided with a shaft sleeve matched with the tension rod.

The bottom end of the tension rod is provided with a notch, and the chuck is hinged in the notch through a bolt.

Compared with the prior art, the utility model has the beneficial effects that:

when a coal bunker leaks, the structure of the coal bunker needs to be repaired, and the external pressure box and the coal bunker leak are quickly connected and compressed through pressing, tensioning and connecting, so that plugging is formed. The quick leaking stoppage ensures the safe and continuous production without shutdown of the mill system.

Drawings

FIG. 1 is a front elevational view of the present invention in schematic form (excluding the outer sleeve and T-ram);

FIG. 2 is a schematic side view of the construction of the present invention (excluding the outer sleeve and T-ram);

fig. 3 is a schematic diagram of the structure and working state of the present invention.

In the figure: 1-tension rod 2-external sleeve box 3-chuck 4-T-shaped pressure head 5-sheath 6-bin wall 11-stud 12-gap 21-sealing gasket 22-shaft sleeve

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings:

as shown in fig. 1-3, a mill coal bunker quick plugging device comprises a tension rod 1, an outer sleeve box 2, a chuck 3, a T-shaped pressure head 4 and a sheath 5.

As shown in fig. 1 and 2, one end of the tension rod 1 is provided with a stud 11, and the bottom of the other end is provided with a notch 12. The two ends of the clamping head 3 are provided with nail-tip-shaped sharp bulges, the middle part of the clamping head 3 is hinged in the opening 12 at the other end of the tension rod 1 through a bolt, and the clamping head 3 can rotate by taking the bolt as a rotating shaft.

The sheath 5 is cylindric, and the 5 cover of sheath can be with dop 3 cover in the sheath 5 after on the tightening rod 1, can fix dop 3 to make the sharp-pointed arch of spike shape of dop 3 down, tightening rod 1, sheath 5 and dop 3 form an awl.

As shown in fig. 3, the outer sleeve box 2 is box-shaped, the bottom surface of the outer sleeve box 2 is matched with the bin wall 6 of the coal bin of the mill, the outer sleeve box 2 can be designed into various sizes and models according to historical maintenance experience, if the opposite surface of the hyperbola of the cone of the coal bin shell is met, a matched curved contact surface can be designed and manufactured, and the contact surface between the compressed outer sleeve box 2 and the bin wall 6 is complete and well sealed. The bottom surface of the outer sleeve 2 is provided with a gasket 21. The top surface of the outer sleeve 2 is provided with a shaft sleeve 22 matched with the tension rod 1.

During the use with the awl of straining rod 1, sheath 5 and dop 3 formation down, make dop 3 squeeze into the breach on bulkhead 6 surface, upwards draw sheath 5, withdraw from sheath 5, rotatory straining rod 1, the dop 3 of straining rod 1 front end will overturn, become flexible withdraw from just card on the coal bunker inner wall a bit. The axle sleeve 22 that presses box 2 with the outside overlaps on straining rod 1, is about to the outside press box 2 to overlap on straining rod 1, twists T type pressure head 4 to straining rod 1's double-screw bolt 11 on, and T type pressure head 4 compresses tightly outside cover box 2 downwards, and outside cover box 2 bottom surface is equipped with sealed pad 21, can seal the breach of granule coal after progressively compressing tightly, and the maintenance process is less than 2 minutes, can solve the accident that the bunker leaked the material fast, resumes mill safety in production fast.

The utility model realizes the quick leakage stoppage of the coal bunker of the coal mill, and ensures the safe and continuous production without shutdown of a coal mill system of the coal mill.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and their concepts should be equivalent or changed within the technical scope of the present invention. The methods used in the above examples are conventional methods unless otherwise specified.

Claims

1. The utility model provides a quick plugging device of mill coal bunker which characterized in that: comprises a tension rod, an external sleeve box, a chuck, a T-shaped pressure head and a sheath; sharp bulges are arranged at two ends of the chuck, the chuck is hinged to one end of the tension rod, the sheath is sleeved on the tension rod, and the chuck is fixed through the sheath so as not to turn over; when the coal bunker clamping device is used, the sharp bulge of the clamping head is pressed into a crack on the wall of the coal bunker of the mill, the sheath is taken down from the tension rod, the tension rod is rotated, and the clamping head is overturned and clamped on the wall of the coal bunker; the external sleeve box is sleeved on the tensioning rod, the stud is arranged at the other end of the tensioning rod, the T-shaped pressure head is in threaded connection with the stud, and the external sleeve box is tightly pressed on the bin wall through the T-shaped pressure head and the chuck.

2. The mill coal bunker quick plugging device as claimed in claim 1, wherein: the bottom surface of the external sleeve box is matched with the wall of the coal bin of the mill.

3. The mill coal bunker quick plugging device as claimed in claim 1, wherein: and a sealing gasket is arranged on the bottom surface of the external sleeve box.

4. The mill coal bunker quick plugging device as claimed in claim 1, wherein: and the top surface of the external sleeve box is provided with a shaft sleeve matched with the tension rod.

5. The mill coal bunker quick plugging device as claimed in claim 1, wherein: the bottom end of the tension rod is provided with a notch, and the chuck is hinged in the notch through a bolt.