CN215324630U

CN215324630U - Blockage clearing device suitable for eccentric conical bin

Info

Publication number: CN215324630U
Application number: CN202121261681.9U
Authority: CN
Inventors: 胡雪梅; 李烨; 丁洪超; 刘春雷
Original assignee: Pingdingshan Power Generation Branch Of National Power Investment Group Henan Electric Power Co ltd; Henan Woodwin Power Equipment Co ltd
Current assignee: Pingdingshan Power Generation Branch Of National Power Investment Group Henan Electric Power Co ltd; Henan Woodwin Power Equipment Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-12-28
Anticipated expiration: 2031-06-07

Abstract

The utility model belongs to the technical field of coal dust blockage prevention, and particularly discloses a blockage removing device suitable for an eccentric conical bin, which is characterized in that: get rid of eccentric awl feed bin lower part to install eccentric hyperbolic bin additional, the axis in eccentric hyperbolic bin does not coincide with the axis in eccentric awl feed bin, sets up a plurality of air hammers on the outer wall in eccentric hyperbolic bin, sets up rotatory clear stifled machine in the lower extreme in eccentric hyperbolic bin, rotatory clear stifled machine's rotating part is provided with two scrapers, and two scrapers all stretch into to the bottom in eccentric hyperbolic bin, cooperate with the inner wall of eccentric hyperbolic bin bottom. Compared with the prior art, the device has the advantages of compact structure, stable operation, improved material fluidity and capability of avoiding the problem of blockage of an eccentric feed bin.

Description

Blockage clearing device suitable for eccentric conical bin

Technical Field

The utility model belongs to the technical field of material bin blockage prevention, and particularly relates to a blockage removing device suitable for an eccentric conical bin.

Background

In recent years, with the diversity of coal types used by power plants, the phenomenon of wall sticking and blockage of a storage bin commonly exists in a plurality of power plants, so that in recent years, each power plant adopts various schemes to perform anti-blocking reconstruction on the coal bin. At present, the blockage of the materials in the storage bin with poor flowing conditions or large viscosity of fly ash, stone, gypsum and the like at home and abroad still takes an air blockage remover, a vibrator, manual cleaning and the like as main treatment means, but the blockage of the storage bin still is a difficult problem which troubles enterprises. The most fundamental solution for preventing the blockage of the stock bin is that the stock bin fully considers all aspects of factors causing the blockage in structural design, designs reasonable structures, shapes and the like, and avoids the blockage as much as possible. The measures adopted at present are as follows: 1. the upper part of the coal bunker is provided with auxiliary equipment such as an air cannon, an air hammer and the like; 2. reforming the shape of the coal bunker: transforming the conical bin into a hyperbolic bin; 3. a rotary blockage removing machine and the like are arranged at the lower part of the coal bunker; and (3) reflecting after modification: the eccentric coal bunker adopts a blockage clearing structure, and the satisfactory effect cannot be achieved. The research finds the reason as follows: 1. when the hyperbolic bin is adopted, the hardened blocking pressure at the upper part of the bin can be greatly relieved, and the lower part of the bin cannot play a role in clearing and relieving blockage due to a small caliber, so that the phenomenon of wall sticking and blocking frequently occurs at the lower part of the bin. The method for installing the rotary blockage removing machine at the lower part of the coal bunker comprises the following steps: the wall sticking and blocking phenomena at the lower part of the storage bin can be thoroughly solved due to the relative movement of the bin body of the equipment and the scraper of the rotary blockage removing machine, but the upper part of the coal bin is an eccentric conical bin due to the original bin shape, and the scraper of the rotary blockage removing machine cannot scrape the inner wall of each part of the eccentric conical bin, so the wall sticking and blocking phenomena are also possibly generated.

The blockage of the storage bin materials with poor flowing conditions or large viscosity such as fly ash, stone, gypsum and the like at home and abroad is also treated by an air blockage remover, a vibrator, manual cleaning and the like, but the storage bin blockage still is a difficult problem which troubles enterprises.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects existing in the transformation of the prior art, and provides the blockage removing device suitable for the eccentric conical bin, which has the advantages of compact structure, stable operation, improved material fluidity and capability of avoiding the blockage of the eccentric bin.

In order to achieve the purpose, the utility model adopts the technical scheme that: this be suitable for clear stifled device of eccentric awl feed bin, its characterized in that: get rid of eccentric awl feed bin lower part to install eccentric hyperbolic bin additional, the axis in eccentric hyperbolic bin does not coincide with the axis in eccentric awl feed bin, sets up a plurality of air hammers on the outer wall in eccentric hyperbolic bin, sets up rotatory clear stifled machine in the lower extreme in eccentric hyperbolic bin, rotatory clear stifled machine's rotating part is provided with the scraper, and the scraper all stretches into to the bottom in eccentric hyperbolic bin, cooperatees with the inner wall of eccentric hyperbolic bin bottom.

The outlet diameter of the eccentric hyperbolic bin is 2160mm, the height of the hyperbolic part is 2500mm, and the distance between the eccentric conical bin and the axis of the eccentric hyperbolic bin is 300-500 mm.

The scraper is fixedly connected to the inner wall of the upper section of the rotating part of the rotary blockage removing machine.

And a lower scraper is fixedly arranged on the rotating part of the rotary blockage removing machine, extends into the outlet at the lower part of the rotary blockage removing machine and is matched with the inner wall.

Adopt above-mentioned technical scheme's beneficial effect: the eccentric cone-shaped bin body corresponding to the blockage removing device suitable for the eccentric cone-shaped bin is characterized in that the inclination angle of an inclined bus opposite to a vertical bus of the eccentric cone-shaped bin body is larger than the repose angle of a powdery material, the powdery material accumulated in the cone is easily larger than the repose angle of the material, and the material can directly flow to the discharge port of the cone-shaped bin body, so that the powdery material can flow to the discharge port of the cone-shaped bin body along the inner wall of the cone under the vibration action of an air hammer on the bin wall even if the powder accumulated in the bin body is smaller than the repose angle of the material, the material in the bin wall can be completely discharged, the acting force of the material on the inclined side wall is different from the periphery, the complete discharge of the material in the bin is ensured, and the waste of the powdery material is avoided; the eccentric conical bin is an eccentric hyperbolic bin, the section shrinkage rate of the eccentric hyperbolic bin is a certain value and does not change along with the height of a bin opening, the inclination angles of any positions of the bin wall are different, the inclination angle is larger as the bin wall approaches an outlet, the sectional area is reduced when coal particles in the bin flow downwards, but the resistance borne by the coal particles from the top is basically unchanged as the inclination angle of the bin wall is increased, and even if the bin wall reaches the outlet, the resistance is not large, so that the coal particles uniformly and integrally flow in the bin body, the coal which enters the bin first is discharged first, the bin wall does not hang the coal, and the probability of coal blockage in the bin is reduced. The lower extreme in eccentric hyperbolic bin is connected rotatory clear stifled machine, and rotatory clear stifled machine can prevent well that the buggy that gets into clear stifled built-in from blockking up, rotatory clear stifled machine's rotating part is provided with two scrapers, and two scrapers all stretch into the bottom in eccentric hyperbolic bin, cooperate with the inner wall in eccentric hyperbolic bin bottom. The two scrapers rotating along with the stirring of the coal powder can scrape the coal powder adhered to the inner wall of the bottom of the eccentric hyperbolic bin, so that the eccentric hyperbolic bin does not arch, and the coal flow flows smoothly. Therefore, the blockage removing device can well prevent pulverized coal from being stuck and arched in the eccentric conical bin and the eccentric hyperbolic bin to cause blockage, and can ensure the smooth conveying of the pulverized coal.

Drawings

The following describes in further detail specific embodiments of the present invention with reference to the accompanying drawings.

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

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses.

The blockage removing device suitable for the eccentric conic bin shown in fig. 1 is obtained by modifying the existing eccentric conic bin, the lower part of the eccentric conic bin 1 is removed, an eccentric hyperbolic bin 2 is additionally arranged, the axis of the eccentric hyperbolic bin is not coincident with the axis of the eccentric conic bin, the diameter of an outlet of the eccentric hyperbolic bin is 2160mm, the height of the hyperbolic bin is 2500mm, and the distance between the eccentric conic bin and the axis of the eccentric hyperbolic bin is 300-500 mm.

Set up a plurality of air hammers 3 on the outer wall in eccentric hyperbolic bin, set up rotatory clear stifled machine 4 at the lower extreme in eccentric hyperbolic bin, be fixed with two scrapers 6 on the inner wall of rotatory clear rotating part upper segment of stifled machine, two scrapers all stretch into the bottom in eccentric hyperbolic bin, cooperate with the inner wall of eccentric hyperbolic bin bottom, and the scraper is along with the rotation of rotatory clear stifled machine, scrapes the material that bonds on eccentric hyperbolic bin bottom inner wall, prevents the jam of material here. The rotary part of the rotary blockage removing machine is fixedly provided with a lower scraper 7, and the lower scraper 7 extends into the outlet at the lower part of the rotary blockage removing machine and is matched with the inner wall to prevent the blockage of materials at the outlet of the rotary blockage removing machine. The outlet of the rotary blockage removing machine 4 is provided with a belt conveyor 5 for receiving the coal dust, so that the coal dust is conveyed.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a be suitable for clear stifled device of eccentric awl feed bin which characterized in that: get rid of eccentric awl feed bin lower part to install eccentric hyperbolic bin additional, the axis in eccentric hyperbolic bin does not coincide with the axis in eccentric awl feed bin, sets up a plurality of air hammers on the outer wall in eccentric hyperbolic bin, sets up rotatory clear stifled machine in the lower extreme in eccentric hyperbolic bin, rotatory clear stifled machine's rotating part is provided with the scraper, the scraper all stretches into to the bottom in eccentric hyperbolic bin, cooperatees with the inner wall of eccentric hyperbolic bin bottom.

2. The blockage removal device suitable for the eccentric cone storage bin as claimed in claim 1, wherein: the outlet diameter of the eccentric hyperbolic bin is 2160mm, the height of the hyperbolic part is 2500mm, and the distance between the eccentric conical bin and the axis of the eccentric hyperbolic bin is 300-500 mm.

3. The blockage removal device suitable for the eccentric cone storage bin as claimed in claim 1, wherein: the scraper is fixedly connected to the inner wall of the upper section of the rotating part of the rotary blockage removing machine.

4. The blockage removal device suitable for the eccentric cone storage bin as claimed in claim 1, wherein: and a lower scraper is fixedly arranged on the rotating part of the rotary blockage removing machine, extends into the outlet at the lower part of the rotary blockage removing machine and is matched with the inner wall.