CN207566192U - A kind of structure of the cutter body for run coal bin cleaner - Google Patents

Abstract

The utility model discloses a cutter body structure for a raw coal bunker clearing machine, which comprises four middle rotating blades and two pairs of scrapers with the same structure, and one end of the four middle rotating blades is uniformly fixed on the raw coal bunker through a cutter head On the inner wall of the rotating chamber of the blockage clearing machine; the two pairs of scrapers are symmetrical about the central axis of the raw coal bunker blockage clearing machine and connected by a connecting rod; the scraper includes an upper knife body and a lower knife body; the upper knife body and the lower knife The body is fixed on the inner wall of the rotating chamber of the raw coal bunker clearing machine through the cutter head; a plurality of upper auxiliary scrapers are arranged inside the upper cutter body; the upper part of the lower cutter body is a straight section, and the lower part is a bottom auxiliary scraper. Knife; the inner side of the straight section of the lower knife body is provided with a plurality of lower auxiliary scrapers. The utility model has remarkable blocking-removing effect and is worthy of popularization.

Description

A cutter body structure used for raw coal bunker block removal machine

technical field

The utility model relates to the technical field of material bunker clearing equipment, in particular to a cutter body structure used for a raw coal bunker clearing machine.

Background technique

At present, coal-fired power plants mostly use raw coal bunkers to store coal before the coal feeder. The raw coal bunker is generally a conical structure, and the lower bunker section is prone to blockage, which seriously affects the normal operation of the equipment, and the consequences are very serious. Rotary raw coal bunker unblocking machine is generally used to unblock now. The rotary raw coal bunker clearing machine includes an upper bin body, a middle rotating bin body, and a lower bin body. There is a scraper in the middle rotating bin body, and the scraper moves relative to the material to achieve the effect of clearing the blockage. However, the existing scraper structure has a small range of blockage removal, has a small effect on the upper chamber body, and has an unsatisfactory effect on breaking and removing materials. In addition, if the diameter of the material is too large, it will also cause the blockage of the raw coal bunker. The existing rotary raw coal bunker cleaning machine cannot solve the problem of blockage caused by the large diameter of the coal block.

Utility model content

In order to solve the above-mentioned existing technical problems, the utility model provides a cutter body structure for a raw coal bunker clearing machine, including four middle rotating blades and two pairs of scrapers with the same structure, the four middle rotating blades One end is evenly fixed on the inner wall of the rotating chamber of the raw coal bunker blockage clearing machine through the cutter head, and the other end is connected to the center of the rotating chamber body; the two pairs of scrapers are symmetrical about the central axis of the raw coal bunker blockage removal machine and are connected by connecting rods; The scraper includes an upper cutter body and a lower cutter body; the upper cutter body and the lower cutter body are fixed on the inner wall of the rotating chamber of the raw coal bunker clearing machine through the cutter head; The inner wall of the upper bin of the blockage clearing machine is arranged obliquely, and extends to the upper opening of the upper bin; the lower cutter body is arranged obliquely along the inner wall of the lower bin of the raw coal bunker, and extends to the lower side of the lower bin. mouth; the inside of the upper knife body is provided with a plurality of upper auxiliary scrapers; the upper part of the lower knife body is a straight section, and the lower part is a bottom auxiliary knife; the inner side of the straight section of the lower knife body is provided with a plurality of lower auxiliary scrapers.

Preferably, the bottom auxiliary knife is triangular, and the bottom auxiliary knife is provided with a blade and coincides with the taper angle and radian of the lower bin body.

Preferably, the outer surface of the scraper is provided with a wear-resistant layer.

The utility model is equipped with a rotating blade in the middle, which can crush the materials coming down from the upper bin of the raw coal bunker, so as to ensure that the materials entering the lower bin will not be blocked. The utility model is also equipped with two pairs of scrapers, which can produce spiral stirring in the upper and lower bins, and will not push the materials more and more firmly. The two sets of scrapers are connected by a connecting rod, which enhances the rigidity and strength, thus improving the plugging effect and the service life of the scrapers. Each pair of scrapers adopts split connection, and the upper and lower scrapers can be replaced separately according to the wear condition, which is convenient for installation and maintenance, thus saving production cost and production time. In addition, the upper and lower scrapers extend to the upper opening of the upper bin and the lower opening of the lower bin respectively. After the scraper rotates, it can timely destroy and disintegrate the arching and blocking factors in a wide range, so as to prevent material blockage. , has a significant anti-blocking effect. There is an auxiliary knife on the scraper, which enhances the effect of clearing the broken material. The lower part of the lower scraper is equipped with a triangular auxiliary knife, which can ensure that the sharp corner of the lower part is inserted into the retentate first when rotating, so as to achieve the beneficial effect of small resistance during startup and high efficiency of removing retentate.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the arrangement of the rotary blades of the present invention.

In the figure: 1 connecting rod, 2 upper knife body, 3 cutter head, 4 lower knife body, 5 lower auxiliary scraper, 6 bottom auxiliary knife, 7 upper bin body, 8 upper auxiliary scraper, 9 rotating bin body, 10 lower bin body , 11 middle rotary blades.

Detailed ways

Further illustrate the embodiment of the present utility model below in conjunction with accompanying drawing.

Referring to Figures 1 and 2, a cutter body structure for a raw coal bunker clearing machine includes four central rotating blades 11 and two pairs of scrapers with the same structure, and one end of the four central rotating blades 11 passes through the cutter head 3 evenly It is fixed on the inner wall of the rotating bin body 9 of the raw coal bunker clearing machine and the other end is connected to the center of the rotating bin body; the two pairs of scrapers are symmetrical about the central axis of the raw coal bunker clearing machine and connected by a connecting rod 1; the scrapers include The upper cutter body 2 and the lower cutter body 4; the upper cutter body 2 and the lower cutter body 4 are fixed on the inner wall of the rotating bin body 9 of the raw coal bunker clearing machine by the cutter head 3; the upper cutter body 2 It is arranged obliquely along the inner wall of the upper bin body 7 of the raw coal bunker clearing machine, and extends to the upper mouth of the upper bin body 7; the lower cutter body 4 is arranged obliquely along the inner wall of the lower bin body 10 of the raw coal bunker clearing machine, And extend to the lower opening of the lower bin body 10; the inner side of the upper knife body 2 is provided with a plurality of upper auxiliary scrapers 8; the upper part of the lower knife body 4 is a straight section, and the lower part is a bottom auxiliary knife 6; the lower knife A plurality of lower auxiliary scrapers 5 are arranged inside the straight section of the body 4 .

The bottom auxiliary knife 6 is triangular, and the bottom auxiliary knife 6 is provided with a blade and coincides with the taper angle and radian of the lower bin body 10 .

The outer surface of the scraper is provided with a wear-resistant layer.

Claims (3)

1. A cutter body structure for a raw coal bunker clearing machine, characterized in that it includes four central rotating blades and two pairs of scrapers with the same structure, and one end of the four central rotating blades is evenly fixed on the raw coal through a cutter head The inner wall of the rotating bin of the bunker clearing machine and the other end is connected to the center of the rotating bin body; the two pairs of scrapers are symmetrical about the central axis of the raw coal bunker clearing machine and connected by connecting rods; the scraper includes an upper cutter body and a lower Knife body; the upper knife body and the lower knife body are fixed on the inner wall of the rotating bin of the raw coal bunker clearing machine through the cutter head; the upper knife body is along the inner wall of the upper bin of the raw coal bunker clearing machine It is arranged obliquely and extends to the upper mouth of the upper bin body; the lower knife body is arranged obliquely along the inner wall of the lower bin body of the raw coal bunker clearing machine, and extends to the lower mouth of the lower bin body; the upper knife body A plurality of upper auxiliary scrapers are arranged on the inner side; the upper part of the lower knife body is a straight section, and the lower part is a bottom auxiliary knife; the inner side of the straight section of the lower knife body is provided with a plurality of lower auxiliary scrapers. 2. A knife body structure for a raw coal bunker clearing machine according to claim 1, characterized in that: the bottom auxiliary knife is triangular, and the bottom auxiliary knife is provided with a blade and is aligned with the cone of the lower bin body. The angle of the shape matches the radian. 3. A cutter body structure for a raw coal bunker block removal machine according to any one of claims 1 or 2, characterized in that: the outer surface of the scraper is provided with a wear-resistant layer.