CN214877750U

CN214877750U - Scraper conveyor capable of preventing materials from being adhered

Info

Publication number: CN214877750U
Application number: CN202121419471.8U
Authority: CN
Inventors: 朱莹莹; 王晓楠; 王校风; 李悦
Original assignee: HEGANG TEACHERS COLLEGE TRAINING SCHOOL
Current assignee: HEGANG TEACHERS COLLEGE TRAINING SCHOOL
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-11-26
Anticipated expiration: 2031-06-24

Abstract

A scraper conveyor for preventing materials from being adhered relates to the field of coal dressing processing. The utility model relates to a solve current scraper conveyor and glue the coal slime easily and freeze in the winter in the north, finally lead to the unable moving problem of scraper conveyor. The utility model comprises two side plates, a lower plate, a head chain wheel, a tail chain wheel, two chains and a plurality of scraping plates, wherein the two side plates are vertically and relatively arranged at two sides of the lower plate, the head chain wheel is arranged at one end of the two side plates, the tail chain wheel is arranged at the other end of the two side plates, the tail chain wheel is fixed on the two side plates through a rotating shaft, the two chains are sleeved on the head chain wheel and the tail chain wheel and are driven by the head chain wheel to rotate, and the scraping plates are arranged on the two chains side by side at equal intervals; a coal dropping port is arranged on the lower bottom plate; the scraper conveyor also comprises a plurality of knocking mechanisms which are arranged between the two side vertical plates side by side and are positioned in the coal dropping port. This novel mainly used transports coal slime.

Description

Scraper conveyor capable of preventing materials from being adhered

Technical Field

The utility model relates to a coal dressing processing field especially relates to a prevent scraper conveyor of material adhesion.

Background

Coal plays an important role as an energy resource, and washing and selecting processing are required before the coal is used. In the coal washing process, the fine coal particles are generally sorted by depending on the flotation coal. In the process of flotation of coal, the coal slurry of tiny granule gets into flotation machine or flotation cell, the bubble generating device in flotation machine or the flotation cell produces a large amount of bubbles, the coal slime of tiny granule floats to the upper strata in flotation machine or flotation cell under the effect of flotation medicament and bubble, realize the separation through the scraper blade, because the cleaned coal that the flotation obtained still contains a large amount of moisture, so need pass through the pressure filter press, transport the coal bunker that falls to through the scraper blade conveyer after the filter press, fall in the coal bunker that falls.

The coal dropping bin used for flotation is a multi-storey building, generally has two layers, one layer is arranged into a three-sided wall body, and one side is opened or a gate is arranged; when the flotation clean coal stockpile reaches a certain volume, the flotation clean coal stockpile is transferred to a flotation clean coal yard by a forklift, and even if a gate is arranged on one layer, the gate needs to be opened frequently, in the actual production process, the gate cannot be closed at all, and even some coal preparation plants are not provided with gates at all, so that the flotation clean coal is convenient to transfer.

Because the coal preparation plant is an enterprise with very high production power consumption, many coal preparation plants select night production or night shift production, and originally, the temperature in the daytime in winter in the north is basically about minus 20 ℃, the temperature at night is below minus 25 ℃, and even can reach below minus 30. Therefore, aiming at the coal preparation plant in the north, especially the coal preparation plant in the Heilongjiang province and in the inner Mongolia part of the area range, the temperature in the coal falling bin is almost the same as that outdoors, and under the environment with very low temperature, because the water content of the flotation clean coal is very high, part of the flotation clean coal can be frozen on the scraper blade, the anchor chain and the chain wheel, and as the clean coal is frozen more and more, the scraper conveyor can not operate, the equipment is seriously damaged, and even safety accidents occur. No matter which kind of condition takes place, all need to park and overhaul, mainly the manual work is pounded the flotation clean coal that freezes near the aircraft nose and the flotation clean coal on the anchor chain, not only influences production, but also can cause the artificial damage of equipment, also has the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that needs to solve is: the scrapers, anchor chains and chain wheels of the existing scraper conveyor are easy to stick coal slime to freeze in the north and winter, and finally the scraper conveyor cannot run, so that equipment is seriously damaged and even safety accidents happen; further provides a scraper conveyor for preventing materials from being adhered.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:

the scraper conveyor for preventing materials from being adhered comprises two side vertical plates, a lower bottom plate, a head chain wheel, a tail chain wheel, two chains and a plurality of scrapers, wherein the two side vertical plates are vertically and oppositely arranged on two sides of the lower bottom plate;

the lower bottom plate is provided with a coal dropping port; the scraper conveyor also comprises a plurality of knocking mechanisms, and the knocking mechanisms are arranged between the two side vertical plates side by side and are positioned in the coal dropping port.

Further, every knocking mechanism includes two cams, pivot, strikes hammer, two montants and pin, two cams and strike hammer suit in the pivot, and strike the hammer and be in between two cams, strike the hammer face of hammer and the side facade of cam and be less than 90 degrees angle settings, the vertical montant that sets up of lower surface of every cam, the both ends of pin fix respectively on two side facades, and the side facade of the outer wall of pin and two montants contacts.

Furthermore, the top end of the cam is arc-shaped, and two side ends of the cam are vertical surfaces.

Furthermore, the distance from the top end of the cam to the axis of the rotating shaft is r, the distance from the side end of the cam to the axis of the rotating shaft is a, and r is greater than a; the minimum distance between the lower surface of the scraper and the axis of the rotating shaft is equal to a.

Furthermore, the rotating shaft is further sleeved with a torsion spring, the torsion spring is located between the side vertical plate and the cam, one end of the torsion spring is fixedly connected to the side vertical plate, and the other end of the torsion spring is fixedly connected to the cam.

Compared with the prior art, the utility model the beneficial effect who produces is:

the utility model discloses a set up a plurality of knocking mechanisms at the coal breakage mouth, every scraper blade is through the striking of a plurality of knocking mechanisms for the coal slime that glues on the scraper blade and the anchor chain falls from the coal breakage mouth, thereby the coal slime that glues on the sprocket also reduces, reduces scraper conveyor's maintenance rate and scraper conveyor equipment spoilage.

Drawings

FIG. 1 is a schematic view of the overall structure of the apparatus;

FIG. 2 is a side view of the striking mechanism;

FIG. 3 is an isometric view of a striking mechanism.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings:

as shown in figure 1, the scraper conveyor for preventing materials from being adhered comprises two side vertical plates 1, a lower bottom plate 5, a head chain wheel, a tail chain wheel 2, two chains 3 and a plurality of scrapers 4, the two side vertical plates 1 are vertically and oppositely arranged at two sides of the lower bottom plate 5, two side edges of the lower bottom plate 5 are welded on the vertical surfaces of the two side vertical plates 1, a head chain wheel is arranged at one end of each of the two side vertical plates 1, a tail chain wheel 2 is arranged at the other end of each of the two side vertical plates 1, the tail chain wheel 2 is fixed on the two side vertical plates 1 through a rotating shaft, two chains 3 are sleeved on the head chain wheel and the tail chain wheel 2 side by side, and is driven by the head chain wheel to rotate, the plurality of scrapers 4 are arranged on the two chains 3 side by side at equal intervals, an upper layer scraper and a lower layer scraper are formed, the upper layer scraper is a return layer, the lower layer scraper is a transportation layer, and the gap between the lower layer scraper and the upper surface of the lower bottom plate 5 is very small;

the lower bottom plate 5 is provided with a coal dropping port 5-1; the scraper conveyor also comprises a plurality of knocking mechanisms 6, the knocking mechanisms 6 are arranged between the two side vertical plates 1 side by side and positioned in the coal dropping port 5-1, and the knocking mechanisms 6 are arranged behind the coal slime coal dropping point and mainly used for knocking the scraper and the coal slime on the anchor chain down and dropping the coal slime in the coal dropping bin through the coal dropping port;

different with scraper conveyor's among the prior art coal breakage point (in the past the coal slime fell in tail end sprocket department), scraper conveyor's in this embodiment coal breakage mouth sets up in bottom plate department, knocks off the coal slime on scraper blade and the anchor chain through setting up knocking mechanism, and after the scraper blade and the anchor chain that have knocked pass through the sprocket again, the coal slime volume that glues that dyes on the sprocket significantly reduces to reduce scraper conveyor's maintenance rate and scraper conveyor equipment spoilage.

As shown in fig. 2 and 3, each knocking mechanism 6 comprises two cams 6-1, a rotating shaft 6-2, a knocking hammer 6-3, two vertical rods 6-4 and a stop lever 6-5, wherein the two cams 6-1 and the knocking hammer 6-3 are sleeved on the rotating shaft 6-2, the knocking hammer 6-3 is positioned between the two cams 6-1, and the hammer surface of the knocking hammer 6-3 is arranged at an angle of 90 degrees with the side vertical surface of the cam 6-1; in order to keep the two cams 6-1 in a vertical state all the time, the lower surface of each cam 6-1 is vertically provided with a vertical rod 6-4, two ends of each blocking rod 6-5 are respectively fixed on the two side vertical plates 1, and the outer wall of each blocking rod 6-5 is in contact with the side vertical surfaces of the two vertical rods 6-4.

The top end of the cam 6-1 is arc-shaped, the two side ends of the cam 6-1 are vertical surfaces, and the top end of the cam 6-1 extends out of the upper surface of the coal dropping port.

The distance from the top end of the cam 6-1 to the axis of the rotating shaft 6-2 is r, the distance from the side end of the cam 6-1 to the axis of the rotating shaft 6-2 is a, and r is larger than a; the minimum distance from the lower surface of the scraper to the axis of the rotating shaft 6-2 is equal to a.

In order to ensure that the knocking hammer 6-3 can fall back to the original position, the rotating shaft 6-2 is further sleeved with a torsion spring, the torsion spring is located between the side vertical plate 1 and the cam 6-1, one end of the torsion spring is fixedly connected to the side vertical plate 1, and the other end of the torsion spring is fixedly connected to the cam 6-1.

When one of the scrapers moves under the driving of the chain, the bottom end of the scraper touches the arc-shaped surface at the top end of the cam 6-1 of the knocking mechanism 6, the cam 6-1 rotates by taking the axis of the rotating shaft as the axis under the driving of the scraper, the scraper continuously moves forwards, the cam 6-1 continuously rotates until the cam 6-1 rotates 90 degrees, the side vertical surface of the cam 6-1 faces upwards, the knocking hammer 6-3 also rotates by 90 degrees by taking the axis of the rotating shaft as the axis at this time, the hammer surface of the knocking hammer 6-3 knocks on the plate surface of the scraper, the knocking hammer 6-3 reverses after knocking the scraper, the knocking hammer 6-3 falls back to the original position under the action of the torsion spring, and the initial state is always kept under the action of the vertical rod 6-4 and the stop rod 6-5. As shown by the three striking mechanisms in fig. 1, the three striking mechanisms are respectively the relationships shown between the scraper and the striking mechanism at different times.

The same scraper blade is knocked by the knocking mechanisms, the scraper blade vibrates, coal slime adhered to the scraper blade and coal slime adhered to the anchor chain are shaken off, and the coal slime contamination amount on the scraper blade and the anchor chain is reduced, so that the coal slime contamination amount on the chain wheel is reduced.

Claims

1. A scraper conveyor for preventing materials from being adhered comprises two side vertical plates (1), a lower base plate (5), a head chain wheel, a tail chain wheel (2), two chains (3) and a plurality of scrapers (4), wherein the two side vertical plates (1) are vertically and oppositely arranged on two sides of the lower base plate (5), the head chain wheel is arranged at one end of each side vertical plate (1), the tail chain wheel (2) is arranged at the other end of each side vertical plate (1), the tail chain wheel (2) is fixed on the two side vertical plates (1) through a rotating shaft, the two chains (3) are sleeved on the head chain wheel and the tail chain wheel (2) and are driven by the head chain wheel to rotate, and the scrapers (4) are arranged on the two chains (3) side by side at equal intervals;

the method is characterized in that: the lower bottom plate (5) is provided with a coal dropping port (5-1); the scraper conveyor also comprises a plurality of knocking mechanisms (6), wherein the knocking mechanisms (6) are arranged between the two side vertical plates (1) side by side and are positioned in the coal dropping port (5-1).

2. The scraper conveyor of claim 1, wherein: each knocking mechanism (6) comprises two cams (6-1), a rotating shaft (6-2), a knocking hammer (6-3), two vertical rods (6-4) and a stop lever (6-5), the two cams (6-1) and the knocking hammer (6-3) are sleeved on the rotating shaft (6-2), the knocking hammer (6-3) is positioned between the two cams (6-1), the hammer surface of the knocking hammer (6-3) and the side vertical surface of the cam (6-1) are arranged at an angle of less than 90 degrees, the lower surface of each cam (6-1) is vertically provided with a vertical rod (6-4), two ends of the stop lever (6-5) are respectively fixed on the two side vertical plates (1), and the outer wall of the stop lever (6-5) is contacted with the side vertical surfaces of the two vertical rods (6-4).

3. The scraper conveyor of claim 2, wherein: the top end of the cam (6-1) is arc-shaped, and two side ends of the cam (6-1) are vertical surfaces.

4. The scraper conveyor of claim 3, wherein: the distance from the top end of the cam (6-1) to the axis of the rotating shaft (6-2) is r, the distance from the side end of the cam (6-1) to the axis of the rotating shaft (6-2) is a, and r is greater than a; the minimum distance between the lower surface of the scraper and the axle center of the rotating shaft (6-2) is equal to a.

5. The scraper conveyor of claim 4, wherein: the rotating shaft (6-2) is further sleeved with a torsion spring, the torsion spring is located between the side vertical plate (1) and the cam (6-1), one end of the torsion spring is fixedly connected to the side vertical plate (1), and the other end of the torsion spring is fixedly connected to the cam (6-1).