JPH1045237A - Conveyor belt watering and washing equipment - Google Patents

Abstract

(57) [Summary] [Problem] To completely clean the surface of a conveyor belt. A sprinkling pipe for cleaning a return belt provided on a return belt side of a belt conveyor, and a belt cleaner for roughing which is located behind the sprinkling pipe and whose tip abuts on a lower surface of the belt. A straightening roller positioned behind the roughing belt cleaner and arranged in a staggered manner so as to sandwich the return belt up and down, and a rear end of the straightening roller positioned so as to abut the lower surface of the belt. It has a U-shaped finishing belt cleaner disposed therein, and a water collecting chute disposed so as to surround the water sprinkling tube, the roughing belt cleaner, the correction roller, and the finishing belt cleaner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for sprinkling and cleaning a conveyor belt of a belt conveyor for transporting bulk materials such as coal.

[0002]

2. Description of the Related Art FIG. 6 is a schematic explanatory view of a conventional conveyor belt cleaning apparatus. In the figure, a is an upstream belt conveyor for transporting bulk materials such as coal. b is the conveyor belt and c is the return belt. q is a head pulley. d is a downstream belt conveyor, e
Is the conveyor belt, and f is the return belt. g is a conveyor transfer section, which is a section where the coal v transfers from the upstream belt conveyor a to the downstream belt conveyor d. At the transfer portion g, the hood x is provided since the coal v falls and the pulverized coal contained in the coal v scatters as dust.

[0003] Further, in the transfer section g, in order to reduce dust generation and to prevent the coal v transported by the belt conveyor d and generated from the pile from being generated from the pile, coal transferred per connection section is provided. About 1% of water w at maximum is sprayed.
For example, when the transport amount of coal v is 3,000 t / h, 30 t / h of water w is sprinkled. Sprinkling is performed aiming at the coal v falling from the sprinkling pipe j at the connecting portion g. on the other hand,
Since pulverized coal adheres to the surface of the conveyor belt b, the pulverized coal is scraped off by the belt cleaner r near the head pulley q. However, since the pulverized coal does not fall sufficiently, it is further provided on the return side of the conveyor belt b. The adhering material is scraped into the collection hopper h by the belt cleaner s. The adhering substances scraped off on the upper surface of the recovery hopper h are washed by applying washing water w from the water spray pipe m. The washing water w flows down from the recovery hopper h to the water storage tank n via the strainer o. p is a water supply pump, which is provided with washing water w from a water storage tank n by a drain pipe u adjacent to a coal storage plant.
The wastewater is sent to a wastewater treatment device (not shown). The wastewater treatment device is composed of a coagulation stirring tank, a coagulation sedimentation tank, a sludge dewatering device, etc., and the treated water is reused, and the sludge is dewatered and sent to a coal storage plant to be used as fuel. Here, i is a water supply pipe, and t is a lower pressing roller.

[0004]

In the conventional belt conveyor cleaning apparatus described above, when the conveyor belt b has passed the head pulley q, the belt cleaner abuts on the belt b and adheres to the surface of the belt b. The pulverized coal is scraped off, and the deposits are scraped into the collection hopper h by a belt cleaner s provided behind the belt cleaner r. However, the differential coal is firmly adhered to the conveyor belt b.
Is transported in a trough shape by a carrier roller (not shown) during transportation of the coal v and the like, so that the haul of the trough shape remains on the conveyor belt b even after the head pulley q is rotated,
Even with the belt cleaner r and the belt cleaner s, the adhered substances could not be sufficiently scraped off.

The present invention has been devised in view of the above-described problems, and deposits such as pulverized coal adhering to the surface of a conveyor belt are sprayed toward the lower surface of a return belt to remove moisture to the deposits. An object of the present invention is to make it easy to scrape off and to remove attached matter by giving.

[0006]

According to the present invention, a sprinkling pipe for cleaning a return belt provided on a return belt side of a belt conveyor and a sprinkling pipe positioned behind the sprinkling pipe are provided. A roughing belt cleaner disposed so that the leading end abuts on the lower surface of the belt, and a straightening roller disposed behind the roughing belt cleaner and arranged in a staggered manner so as to sandwich the return belt up and down. A U-shaped finishing belt cleaner which is located behind these straightening rollers and whose leading end is in contact with the lower surface of the belt; and a sprinkler pipe, a roughing belt cleaner, a straightening roller and a finishing belt cleaner. And a water collecting chute arranged so as to surround the conveyor belt.

[0007] According to a preferred embodiment of the present invention, a drainer is disposed behind the finishing belt cleaner so that a tip thereof is in contact with a lower surface of the belt. The apparatus further includes a plurality of upper pressing rollers disposed so as to be in contact with the upper surface.

According to a preferred embodiment of the present invention,
Drainers of a certain length are disposed at both ends of the lower surface of the belt so as to abut at right angles to the belt.

Further, according to a preferred embodiment of the present invention, an opening for inspection is provided at an appropriate position of the water collecting chute, and a flexible goodwill member is detachably provided in the opening to form the opening. I'm closing it.

Next, the operation of the present invention will be described. When the conveyor belt transports the coal and goes around the head pulley,
Sprinkle the washing water from the sprinkler tube toward the lower surface of the return belt to make it easier to scrape off the deposits. Next, the contaminants on the surface of the conveyor belt are scraped off by a roughing belt cleaner disposed behind the belt cleaner. Further, the return belt is flattened by straightening rollers which are arranged behind the roughing belt cleaner and are staggered so as to sandwich the return belt up and down, and a U-shaped finishing belt cleaner is applied thereto. The belt contacts and scrapes off the deposits left on the surface of the conveyor belt, so that the surface of the belt can be completely cleaned. In addition, since the water attached to the surface of the conveyor belt can be completely removed by the drainer disposed behind the finishing belt cleaner, no water drops are dropped from the rear conveyor belt.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a schematic explanatory view of a conveyor belt watering and washing apparatus of the present invention, FIG. 2 is a plan view of a return belt side of the present invention, FIG. 3 is a view taken along the line AA in FIG. 2, and FIG. FIG. 5 is a side view of FIG.

In FIG. 1, reference numeral 1 denotes a belt conveyor for conveying coal or the like. 1a is a conveyor belt of the belt conveyor 1, and 1b is its return belt. Reference numeral 2 denotes a head pulley provided at an end of the belt conveyor 1. Reference numeral 3 denotes a lower pressing roller of the return belt 1b.
Reference numerals 4 and 4a denote two upper correction rollers arranged at a predetermined interval so as to contact the upper surface of the return belt 1b. Reference numeral 5 denotes a lower surface of the return belt 1b at an intermediate position below the upper correction rollers 4 and 4a. The lower straightening roller is disposed so as to contact with the roller, and is moved up and down by an elevating means (not shown) to adjust the pressing force. In this way, the upper straightening rollers 4, 4a and the lower straightening rollers 5 are arranged in a staggered manner, the lower straightening rollers 5 are raised and lowered, and the return belt 1b is straightened by flattening. 6, 6a are upper straightening rollers 4,
4a, two upper pressing rollers disposed at a predetermined interval so as to contact the upper surface of the return belt 1b. The upper pressing roller is located at an intermediate position below the upper pressing rollers 6, 6a and on the lower surface of the return belt 1b. A drainer 11 is provided so as to abut. As shown in FIG. 2, the drainers 11 may be arranged at both ends of the conveyor belt 1a with a certain length so as to be orthogonal to the conveyor belt 1a, and the width of the conveyor belt 1a. It may be the same size as.

Reference numeral 7 denotes a belt cleaner which is disposed at the front (left side in FIG. 1) of the head pulley 2 and is arranged so as to be orthogonal to the conveyor belt 1a. Is brought into contact. Also, this belt cleaner 7
Is composed of a main body 7a and blades 7b which are divided and attached to the main body 7a in a plurality of parts in the width direction, so that even if the conveyor belt 1a has some irregularities, the blades 7b uniformly hit each other. I have.

Numeral 8 denotes a water sprinkling pipe which is located behind the lower press roller 3 so as to be orthogonal to the return belt 1b over the entire width of the return belt 1b, and has a large number of water sprinkling holes (not shown) on its upper surface. The washing water is sprayed from the spray hole toward the lower surface of the return belt 1b.

Reference numeral 9 denotes a roughing belt cleaner which is located behind the water sprinkling pipe 8 and is arranged to abut against the return belt 1b by a pressing device such as a sprinkler (not shown). The roughing belt cleaner 9 is attached to the main body 9a over the entire width of the return belt 1b.
The adhering matter adhering to the surface of the return belt 1b is roughly removed. In this roughing belt cleaner 9, the blade 9b is divided into a plurality of parts similarly to the belt cleaner 7, and even if there are some irregularities on the surface of the return belt 1b, the blades 9b uniformly hit each of them. It has become. A cemented carbide tip is attached to a portion (upper end) of the belt cleaner 7 and the roughing belt cleaner 9 that contacts the belt, thereby preventing the belt cleaner 7 and the roughing belt cleaner 9 from being worn. ing.

Reference numeral 10 denotes a U-shaped finishing belt cleaner disposed so as to contact the lower surface of the return belt 1b between the upper correction roller 4a and the upper pressing roller 6. The finishing belt cleaner 10 is rotatably attached to the bracket 10a, and as shown in FIG. 2, a U-shaped central portion strongly contacts the lower surface of the return belt 1b,
Both end portions are arranged so as to be able to be adjusted so as to make strong contact.

Reference numeral 12 denotes a sprinkler tube 8, a roughing belt cleaner 9, correction rollers 4, 4a, and a finishing belt cleaner 10.
And a lower water collecting chute 12a and an upper water collecting chute 1 provided to surround the drainer 11.
2b. The washing water from the sprinkling pipe 8 and the deposits scraped off by the roughing belt cleaner 9 and the deposits scraped off by the finishing belt cleaner 10 are collected. Reference numeral 18 denotes a drain pipe connected to the bottom of the lower water collecting chute 12a. The drain pipe 18 allows the collected deposits and the like to flow down to a water storage tank (not shown) similar to the water storage tank n described in the related art, and is sent to a waste water treatment device. It has become. Reference numeral 19 denotes a carrier roller disposed on the lower surface of the conveyor belt 1a so as to support the conveyor belt 1a in a trough shape. The carrier roller is usually composed of three rollers (FIG. 3), and extends in the longitudinal direction of the conveyor belt 1a. They are arranged at regular intervals (FIG. 1).

Reference numeral 14 denotes an inspection window provided at an appropriate position of the water collecting chute 12, which is provided above the water sprinkling pipe 8 in FIG. Reference numeral 15 denotes an opening provided at an appropriate position of the water collecting chute 12 to allow an operator to enter and exit for internal inspection and the like.
Reference numeral 16 denotes a goodwill member disposed so as to close the opening 15, and is formed of a flexible member such as rubber. As shown in FIGS. 1, 3, 4, and 5, the goodwill member 16 is configured to be entirely larger than the opening 15, and the upper end is fixed to the connecting rod 16a. Is hooked on a hook 16b attached to the upper end of the opening 15 to make it detachable. The size of the goodwill member 16 increases with an increase in the size of the opening 15. In such a case, the lower end portion of the upper goodwill member and the lower goodwill member of the lower goodwill member are divided into upper and lower parts, for example. Lay it on top. Reference numeral 20 denotes an openable / closable lid for closing an inspection opening provided on the upper surface of the water collecting chute 12. When the width of the conveyor belt is wide, if the lid 20 is divided into two parts in the width direction of the conveyor belt and moved separately in the lateral direction, opening and closing can be easily performed without lifting the lid 20. . Reference numeral 17 denotes a waterproof cover attached to the outside of the water collecting chute 12.

Next, the operation of the present embodiment will be described.
The belt conveyor 1 loads coal on the conveyor belt 1a on the upstream side and conveys it to the downstream side. When the conveyor belt 1a that has transported the coal has turned around the head pulley 2 and has turned around the lower press roller 3, the washing water is sprinkled from the water sprinkling tube 8 provided in the water collecting chute 12 toward the lower surface of the return belt 1b. Then, the deposits such as pulverized coal remaining on the surface of the conveyor belt 1a (the lower surface of the return belt 1b in the drawing) without being completely scraped off by the belt cleaner 7 are given water by the washing water to be in a state of being easily scraped off.
The amount of water from the sprinkling pipe 8 may be about 10 liter / m / min. Then, it is scraped off by a roughing belt cleaner 9 arranged behind it. Further, the conveyor belt 1a is scraped off by a U-shaped finishing belt cleaner 10 abutting on the lower surface of the return belt 1b flattened by the upper straightening rollers 4 and 4a and the lower straightening roller 5 disposed behind the belt. Thoroughly clean the surface. Water drops on the surface of the conveyor belt 1a are also removed by a drainer 11 provided behind the finishing cleaner 10 to completely clean the surface of the conveyor belt 1a. The adhering matter scraped off by the washing water or the belt cleaner falls into the water collecting chute 12.
3 and is returned to the water storage tank via the drain pipe 18.

Incidentally, as a result of the verification test performed by the inventor,
The amount of adhesion was reduced to about 1/40 as compared with the conventional one.

The present invention is not limited to the above-described embodiment, but may be variously modified without departing from the gist of the present invention.

[0022]

As described above, according to the present invention, the contaminants adhering to the surface of the conveyor belt are given moisture to facilitate the scraping, and the conveyor belt is flattened by the straightening roller, and the flat surface is formed. Then, the roughing belt cleaner and the finishing belt cleaner are brought into contact with each other to scrape off the deposits, so that the surface of the conveyor belt can be completely cleaned. In addition, since the drainer is disposed behind the finishing belt cleaner, an excellent effect is obtained such that water droplets on the conveyor belt can be removed.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view of a conveyor belt watering and washing apparatus of the present invention.

FIG. 2 is a plan view of a return belt according to the present invention.

FIG. 3 is a view as viewed in the direction of arrows AA in FIG. 2;

FIG. 4 is a front view of the goodwill member of the present invention.

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a schematic explanatory view of a conventional conveyor belt watering and washing apparatus.

[Explanation of symbols]

 1 Belt Conveyor 1a Conveyor Belt 1b Return Belt 2 Head Pulley 3 Lower Pressing Roller 4,4a Upper Correction Roller 5 Lower Correction Roller 6,6a Upper Pressing Roller 7 Belt Cleaner 7a Belt Cleaner Body 7b Blade 8 Sprinkler Tube 9 Roughing Belt Cleaner 9a Roughing belt cleaner main body 9b Blade 10 Finishing cleaner 10a Bracket 11 Drainer 11a Drainer attachment member 12 Water collecting chute 12a Lower water collecting chute 12b Upper water collecting chute 13 Sprinkler tube 14 Inspection window 15 Opening 16 Goodwill member 17 Waterproof cover 18 Drainage Pipe 19 Carrier roller 20 Lid 21 Belt conveyor frame a Upstream belt conveyor b, e Conveyor belt c, f Return belt d Downstream belt conveyor g Transfer section h Recovery hopper i Wash water supply pipe j, m sprinkler pipe n water storage tank o strainer p feed pump q head pulley r, s belt cleaner t lowering roller u drain pipe v coal w washing water x hood

Claims (4)

[Claims] 1. A return belt cleaning sprinkler pipe provided on a return belt side of a belt conveyor, and a roughing belt cleaner disposed rearward of the sprinkler pipe and having a tip abutting on a lower surface of the belt. A correction roller positioned behind the roughing belt cleaner and arranged in a staggered manner so as to sandwich the return belt up and down; and a correction roller positioned behind these correction rollers so that the leading ends contact the lower surface of the belt. And a water collecting chute disposed so as to surround the sprinkler pipe, the roughing belt cleaner, the straightening roller, and the finishing belt cleaner. Conveyor belt watering and washing device 2. A drainer positioned behind the finishing belt cleaner so that the leading end contacts the lower surface of the belt, and a drainer positioned before and after the drainer and contacts the upper surface of the belt. 2. The apparatus according to claim 1, further comprising a plurality of upper pressing rollers provided. 3. The conveyor belt sprinkling and washing apparatus according to claim 1, wherein a water drain having a predetermined length is disposed at both ends of the lower surface of the belt so as to abut at right angles to the belt. 4. The water collecting chute is provided with an opening for inspection at an appropriate position, and a flexible goodwill member is removably disposed in the opening to close the opening. Item 4. A conveyor belt watering and washing apparatus according to Item 3.