WO2017187594A1 - Belt conveyor cleaning device - Google Patents

Abstract

Provided is a belt conveyor cleaning device comprising: a housing 2 disposed facing from below the belt transport surface 5 of an endless belt conveyor 3 and having formed on the upper side thereof an opening 7 facing the belt transport surface 5; at least one cleaning nozzle 15 provided within the housing and capable of jetting cleaning liquid toward the opening; and a separation member 13 provided around the opening of the housing and covering the gap between the belt transport surface and the periphery of the opening of the housing when the belt transport surface passes over the opening. The belt conveyor cleaning device also comprises a discharge nozzle 33 directed toward the position where the jetting opening 41 thereof faces a water discharge opening 27. The jetting of fluid from the jetting opening of the discharge nozzle generates negative pressure within the housing when the belt transport surface passes over the opening of the housing.

Description

Belt conveyor cleaning equipment

The present invention relates to an apparatus for cleaning the transport surface of an endless belt conveyor.

When transporting a transported object with an endless belt conveyor, it is necessary to clean the transport surface of the endless belt depending on the transported object. Conventionally, as a method for cleaning the transport surface of the endless belt, the cleaning liquid is sprayed from the cleaning nozzle toward the transport surface when the transport surface comes to the lower side of the conveyor. However, since the cleaning liquid is scattered around by spraying the cleaning liquid toward the transport surface, particularly the downward transport surface, it is necessary to perform operations such as cleaning the surroundings and wiping with water.

In relation to this, a technology has been developed in which a cleaning nozzle is provided in a cleaning chamber, the floor surface or the like is cleaned with a cleaning liquid sprayed from the cleaning nozzle, and the cleaned cleaning liquid is sucked from another nozzle (Patent Document). 1).

Patent Document 2 discloses a technique for uniformly wetting the surface of the conveyor belt by spraying water on the return side surface of the conveyor belt when transporting an object to be transported including powder on the moving conveyor belt. Yes.

Furthermore, Patent Document 3 discloses that an ozone water sprayer installed on both sides of the return portion of the endless belt is adjacent to the endless belt with a slight gap, and air containing ozone from the gap between the enclosure and the endless belt. A technology that includes an exhaust pipe that sucks out air in the enclosure so as not to leak is disclosed.

US Patent Publication US2013 / 0061418A1 JP-A-2-18228 JP-A-8-169524

However, in the method in which the cleaning liquid is sprayed from the cleaning nozzle toward the transport surface when the transport surface comes to the lower side of the conveyor, even with the technique shown in Patent Document 1, a part of the cleaning liquid is discharged from another nozzle. The problem that a lot of cleaning liquid scatters around cannot be solved.

Also, when a suction nozzle is provided separately from the cleaning nozzle and the cleaning liquid is sucked from the suction nozzle, the apparatus becomes complicated. In addition, if the negative pressure in the chamber is too large, the transport surface is attracted to the open surface of the chamber, which may hinder the driving of the endless belt conveyor and may cause deformation or damage of the transport surface.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a simple belt conveyor that prevents the cleaning liquid from the cleaning nozzle from splashing around and can be cleaned without hindering driving of the endless belt conveyor. It is to provide a cleaning device.

One form of the belt conveyor cleaning device of the present invention is disposed so as to face the belt conveyance surface of the endless belt conveyor from the lower side, and is provided in the housing with an opening formed on the upper side facing the belt conveyance surface. , At least one cleaning nozzle capable of spraying the cleaning liquid in the direction of the open portion, and provided around the open portion of the housing, and when the belt transfer surface passes over the open portion, around the belt transfer surface and the open portion of the housing A separating member, a drainage pipe having a drainage port below the housing, and a discharge nozzle provided at a position where the jetting port faces the drainage port of the drainage pipe. And a negative pressure is generated in the housing when the belt conveying surface passes over the open portion of the housing by ejecting fluid from the ejection port of the discharge nozzle.

According to this embodiment, the separating member provided around the open portion of the housing covers the space between the belt transport surface and the periphery of the open portion of the housing when the belt transport surface passes over the open portion. The interior is substantially closed. In addition, when the fluid is ejected from the ejection port of the discharge nozzle while the open part of the housing is substantially closed, the action of drawing the air in the housing together and exiting to the outside works. Negative pressure is generated inside. This negative pressure further prevents the cleaning liquid from splashing around, and the cleaning liquid supplied from the cleaning nozzle is guided into the drainage pipe, so that the cleaning liquid can be discharged.

Further, in the second embodiment of the belt conveyor cleaning device of the present invention, in addition to the first embodiment, the fluid and the cleaning liquid ejected from the discharge nozzle are water, and the water supply to the discharge nozzle is the water to the cleaning nozzle. It may be performed via a pipe branched from the supply pipe.

According to this embodiment, the water as the cleaning liquid is supplied to the cleaning nozzle through the pipe, and the pipe for supplying water to the discharge nozzle is branched from the middle of the pipe. Therefore, there is no need to newly provide a separate piping system dedicated to the discharge nozzle, and the piping to the cleaning nozzle can be used up to the middle, so that an economical and space-saving configuration can be achieved.

In the third embodiment of the belt conveyor cleaning device of the present invention, in addition to the first or second embodiment, the isolation member may be a brush. When the inside of the housing becomes negative pressure due to the ejection of the fluid from the ejection port of the discharge nozzle, external air is slightly supplied from the gap of the brush into the housing, so the negative pressure in the housing is moderated to some extent, It is possible to prevent the belt conveyance surface from coming into close contact with the open portion of the housing and hindering movement on the belt conveyance surface.

Further, in the fourth embodiment of the belt conveyor cleaning device of the present invention, in addition to the first to third embodiments, the separating member includes a brush provided on substantially half of the opening portion on the upstream side in the traveling direction of the belt conveyance surface, The upper part of the liquid drainage part is in contact with the belt conveyance surface and drains the cleaning liquid adhering to the belt conveyance surface. Then, it may be dropped into the housing.

According to this embodiment, the brush provided at least approximately half of the opening portion on the upstream side in the traveling direction of the belt conveyance surface partially blocks the air flow between the housing and the outside, and maintains the inside of the housing at a negative pressure. In addition, the cleaning liquid sprayed from the cleaning nozzle and the cleaning liquid reflected on the belt conveying surface are prevented from splashing outside the housing. In addition, the upper end of the liquid drainage portion provided approximately halfway downstream in the direction of travel of the belt conveyance surface of the open part contacts the belt conveyance surface, drains the cleaning liquid adhering to the belt conveyance surface and drops it into the housing. Thus, moisture on the belt conveying surface can be removed.

Further, in the fifth embodiment of the belt conveyor cleaning device of the present invention, in addition to the fourth embodiment, a part of the brush may be located inside the liquid draining portion and provided to overlap the liquid draining portion.

According to this embodiment, in the part where the brush partly overlaps with the liquid draining part, in addition to the scraping action of the belt conveying surface by the brush, the liquid draining action of the cleaning liquid on the belt conveying surface by the liquid draining part is performed. Can be done simultaneously.

Further, in the sixth embodiment of the belt conveyor cleaning device of the present invention, in addition to any one of the first to fifth embodiments, the ejection port of the discharge nozzle can be positioned inside the drain port of the drain pipe. .

According to this embodiment, the fluid ejected from the ejection port of the discharge nozzle generates a negative pressure around the Bernoulli's theorem, but the ejection port of the discharge nozzle is located inside the drainage port of the drainage pipe. Further, the flow rate in the narrow drainage port is further increased, and a higher negative pressure can be generated accordingly.

Further, in the seventh embodiment of the belt conveyor cleaning device of the present invention, in addition to the first embodiment, the housing is formed in a rectangular cross section, and the separating member is provided on the upstream side in the traveling direction of the belt conveyance surface of the open portion. The roller-shaped brush, the liquid draining portion provided on the downstream side of the belt conveying surface in the opening direction, and the side walls covering both side surfaces of the rectangular housing, and the upper part of the roller-shaped brush is in contact with the belt conveying surface Further, the upper end of the liquid draining part may come into contact with the belt conveyance surface to drain the cleaning liquid adhering to the belt conveyance surface and drop it into the housing.

According to the present embodiment, the roller-shaped brush, the liquid drainage portion, and the side wall that covers both side surfaces of the housing constitute the separating member. In addition to contributing to maintaining the pressure, the cleaning liquid sprayed from the cleaning nozzle and the cleaning liquid reflected by the belt conveyance surface are prevented from splashing outside the housing.

Further, in the eighth embodiment of the belt conveyor cleaning device of the present invention, in addition to any of the first to seventh embodiments, the housing can be arranged at the same angle as the inclination angle of the belt conveying surface of the endless belt conveyor. You may provide the angle adjustment member which supports an inclination angle so that adjustment is possible.

According to this embodiment, when the inclination angle of the endless belt conveyor is changed, the belt conveyor cleaning device can be arranged at an appropriate position with respect to the endless belt conveyor by adjusting the angle adjusting member.

It is a perspective view which shows the endless belt conveyor to which the belt conveyor washing | cleaning apparatus of this invention is applied, and a side view which shows the arrangement | positioning state of a belt conveyor washing | cleaning apparatus. It is a perspective view which shows the housing periphery of the belt conveyor washing | cleaning apparatus of this invention. It is a side view which shows one Embodiment of an isolation member. It is an upper perspective view which shows the periphery of a drain pipe. It is a cross-sectional view which shows typically one Embodiment of the belt conveyor washing | cleaning apparatus of this invention. It is explanatory drawing which shows the positional relationship of the injection outlet of a discharge nozzle, and the drain outlet of a drain pipe. It is the schematic which shows other embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings described below, the same or corresponding components are denoted by the same reference numerals, and redundant description is omitted. In the following description, the term “upstream” means the side where the arbitrary position is located immediately before the movement when attention is paid to an arbitrary position on the conveying surface when the belt conveyor is driven. "Means the side on which the arbitrary location is located immediately after movement.

FIG. 1 is a perspective view showing an endless belt conveyor 3 to which the belt conveyor cleaning device 1 of the present invention is applied, and a side view showing an arrangement state of the belt conveyor cleaning device 1. The belt conveyor cleaning device 1 of the present invention is disposed on the belt conveying surface 5 of the endless belt conveyor 3 so as to face from below as indicated by an arrow 4 in FIG. As shown in FIG. 2, the belt conveyor cleaning device 1 includes a housing 2 having a circular cross section as a whole, and an open portion 7 is formed on the upper side of the housing 2. The opening portion 7 faces the belt conveyance surface 5 with a slight distance downstream from the portion where the belt conveyance surface 5 turns downward.

Around the open portion 7 of the housing 2, a brush 9 that constitutes a separating member 13 is provided upward in almost half of the upstream side. The brush 9 has such a length as to fill a gap between the belt conveyance surface 5 and the opening 7, and the tip of the brush 9 is in light contact with the belt conveyance surface 5. The density of the bristles of the brush 9 is so dense that the water splashed when the cleaning water splashes in the housing 2 is not discharged from the housing 2 to the outside. Thus, air can enter the housing 2 from between the bristles of the brush 9 so that the degree of negative pressure in the housing 2 does not become too large.

As shown in FIGS. 2 and 3, a liquid draining portion 11 that constitutes a separating member 13 together with the brush 9 is formed in almost half of the downstream side around the opening portion 7 of the housing 2. The liquid draining part 11 is made of rubber and has a length that fills the gap between the belt conveying surface 5 and the opening part 7. The tip of the liquid draining part 11 is in light contact with the belt conveying surface 5, so that when the belt conveying surface 5 passes over the liquid draining part 11, the water adhering to the belt conveying surface 5 during the cleaning described later is scraped off. It can then be dropped into the housing 2.

In this way, the separating member 13 is constituted by the brush 9 and the liquid draining portion 11, and the entire periphery of the gap between the belt conveying surface 5 and the opening portion 7 is isolated from the outside by the separating member 13, so that the inside of the housing 2 Thus, the water splashed when the washing water splashes is prevented from coming out of the housing 2.

As shown in FIG. 2B, a brush 9 is provided around the entire open portion 7 of the housing 2, and the liquid draining portion 11 is provided on the outer side of the brush 9 on the downstream side of the open portion 7. May be provided.

2A and 2B, two cleaning nozzles 15 are provided inside the housing 2. As shown in FIG. Each of the two cleaning nozzles 15 is provided at both ends of a water supply pipe 17 extending in the diametrical direction of the circular housing 2, and each cleaning nozzle 15 is disposed at an equal angle in a direction slightly opposite to each other from directly above. Yes. As a result, when water as a cleaning liquid is supplied from the water supply pipe 17 to both cleaning nozzles 15 and water is jetted from the washing nozzles 15, the direction of the arrow 21 around the rotary shaft 19 due to the reaction of the momentum of water jetting. Can be freely rotated.

The water supply pipe 17 communicates with a pipe formed inside the rotary shaft 19, and the pipe inside the rotary shaft 19 is connected to a water supply main pipe 23 as shown in FIG. The water supply main pipe 23 is provided with a valve 25, and the supply and stop of water to the cleaning nozzle 15 are controlled by opening and closing the valve 25.

As shown in FIGS. 2A and 2B, a drain port 27 corresponding to a drain port is formed in the housing 2. The water sprayed from the two washing nozzles 15 falls into the housing 2 and is drained from the drain port 27 through the drain pipe 29 formed integrally with the housing 2. The washed water is discharged to the outside through the drain pipe 29 or treated with clean water by a recycle mechanism (not shown) and then recycled. The position of the drain outlet is preferably the lower part, particularly the lowermost part when the cleaning device is attached to the conveyor.

Further, as shown in FIGS. 2A and 2B and FIG. 5, a discharge nozzle 33 is provided inside the housing 2. Water is jetted from the discharge nozzle 33, and this water is supplied through the supply pipe 35. As shown in FIG. 5, the supply pipe 35 is connected to a negative pressure supply pipe 37 branched from the water supply main pipe 23. The negative pressure supply pipe 37 is provided with a valve 38, and the supply and stop of water to the discharge nozzle 33 are controlled by opening and closing operations of the valve 38. As described above, the water supply source to the two cleaning nozzles 15 and the discharge nozzle 33 is the same water supply main pipe 23. By adopting such a configuration, it is possible to save the trouble of laying pipes for supplying water to both the cleaning nozzle 15 and the discharge nozzle 33, which is advantageous in terms of economy and space saving, and the cleaning nozzle 15 However, it is possible to provide the discharge nozzle 33 as a retrofit to an existing cleaning apparatus that exists only, and to easily provide the negative pressure supply pipe 37 as a retrofit.

Next, the position of the ejection port 41 of the discharge nozzle 33 will be described with reference to FIG. In the present invention, water is jetted outward from the jet nozzle 41 of the discharge nozzle 33, so that the flow at that portion is faster than the other portions according to Bernoulli's theorem, and negative pressure is generated. This negative pressure reaches the inside of the housing 2 and acts so that the water sprayed from the cleaning nozzle 15 does not scatter outside due to the negative pressure after cleaning the belt conveying surface 5.

In order to effectively generate such a negative pressure in the housing 2, the position of the injection port 41 of the discharge nozzle 33 is provided at a position facing the drain port 27 of the drain pipe 29. As shown in FIG. 6A, the “position facing the drainage port 27” means that the ejection port 41 of the discharge nozzle 33 is slightly away from the drainage port 27, but at the location near the drainage port 27, the drainage port 27 side. 6B, the outlet 41 of the discharge nozzle 33 is substantially at the same position as the drain 27, or is slightly inserted from the drain 27, and FIG. 6 (c) is a concept including any state in which the injection port 41 of the discharge nozzle 33 is completely inserted into the discharge port 27. That is, it is possible to include all positions where negative pressure can be generated inside the housing 2 due to the positional relationship with the drainage port 27 when water is ejected from the ejection port 41 of the discharge nozzle 33. Although not shown, an orifice may be formed in the drain pipe 29 immediately downstream of the injection port 41 of the discharge nozzle 33 in order to increase the negative pressure generated in the housing 2.

6 (a) to 6 (c), the state in which the most effective negative pressure is generated in the housing 2 is the positional relationship between the outlet 41 and the outlet 27 of the discharge nozzle 33 as shown in FIG. 6 (b). However, the manner in which the negative pressure is generated in the housing 2 varies depending on the jet speed of water from the jet nozzle 41 of the discharge nozzle 33, the bristle density of the brush 9, and the like. 2 is a suction port of the discharge nozzle 33 that is adsorbed by the open portion 7 of the belt 2 and causes a negative pressure in the housing 2 that does not interfere with the driving of the endless belt conveyor or cause deformation or damage of the transport surface. The positional relationship between 41 and the drain port 27 is preferable.

The belt conveyor cleaning device 1 of the present invention has an angle that supports the housing 2 in an adjustable manner as shown in FIG. 1B so that the housing 2 can be arranged at the same angle as the inclination of the belt conveying surface 5. The adjustment member 43 is preferably provided. The angle adjusting member 43 includes a height adjusting mechanism 47 disposed on the horizontal base 45 and an angle adjusting attachment 49 connected to the height adjusting mechanism 47, and the angle adjusting attachment 49 is the belt conveyor cleaning device 1. The angle can be connected to be adjustable.

Next, another embodiment of the present invention will be described with reference to FIG. In the embodiment shown in FIGS. 2A and 2B described above, the horizontal section of the housing 2 is circular, and the brush 9 is provided in a semicircular shape or a full circumferential shape. However, if the brush 9 provided in this manner is rubbed against the belt conveyance surface 5 in contact with the belt conveyance surface 5, the reduction of the brush 9 abutting on both ends of the belt conveyance surface 5 is smaller than that of other portions. It tends to be early. The embodiment shown in FIG. 7 is for solving such a problem.

In the embodiment shown in FIG. 7, the housing 2 has a rectangular cross section, and a rectangular opening 7 is formed above. A roller-shaped brush 51 (see FIGS. 7A and 7B) is provided on the upstream side of the belt conveying surface 5 in the opening portion 7 in the traveling direction, and this roller-shaped brush 51 is shown in FIGS. It has substantially the same function as the brush 9 in the embodiment. A liquid draining portion 53 having the same function as the liquid draining portion 11 in the embodiment shown in FIGS. 2A and 2B is provided on the downstream side in the traveling direction of the belt conveying surface 5 of the opening portion 7 (FIG. 7A). (See (b)).

7A and 7B, rubber side walls 55 are provided on both sides of the rectangular opening 7. The side wall 55 has a length that fills the gap between the belt conveying surface 5 and the opening 7, and the upper end of the side wall 55 is in light contact with the belt conveying surface 5. In the present embodiment, the roller-shaped brush 51, the liquid draining portion 53, and the two side walls 55 constitute the separating member 13, and the members are cleaned in the housing 2 as in the case of the embodiment shown in FIG. The water splashed when the water for use is splashed is prevented from coming out of the housing 2. The cleaning nozzle 15, the discharge nozzle 33, and the water supply piping system to these nozzles in this embodiment are the same as those in the embodiment shown in FIG.

The belt conveyor cleaning apparatus 1 of the present invention has the above-described configuration, and the operation thereof will be described below by taking the embodiment shown in FIG. 2A as an example. After the endless belt conveyor 3 conveys, for example, chopped leaves to a target location, the endless belt conveyor 3 rotates and the belt conveying surface 5 advances downward. At this time, knitted leaves or fragments thereof may adhere to the belt conveying surface 5 and the belt conveying surface 5 needs to be cleaned.

When the belt conveying surface 5 comes on the opening 7 of the belt conveyor cleaning device 1, the kneaded leaves and large impurities attached by the brush 9 are scraped off. Further, since the inside of the housing 2 has a negative pressure due to the negative pressure caused by the discharge nozzle 33, the belt conveying surface 5 passing over the opening 7 is slightly sucked by the housing 2. In FIG. 5, the belt conveyance surface 5 is slightly depressed on the open portion 7 in a slightly exaggerated manner, showing that the belt conveyance surface 5 is sucked into the housing 2. As a result, the gap between the separating member 13 and the belt conveying surface 5 is filled, but air gradually enters the housing 2 through the gap of the brush 9, so that the housing 2 has a negative pressure larger than necessary. Therefore, the belt conveyance surface 5 is not completely attracted to the opening 7 and the drive of the belt conveyance surface 5 is not affected.

The water, which is a cleaning liquid, is jetted from the two cleaning nozzles 15 onto the belt conveyance surface 5 passing over the open portion 7, and the belt conveyance surface 5 is washed with water pressure. Since the two nozzles 15 rotate as described above, cleaning is performed by spraying water over the entire belt conveying surface 5.

Washed water falls into the housing 2, and the wash water is discharged from the drain outlet 27 by the weight of the water itself, the water pressure by the discharge nozzle, and the negative pressure generated by the action of the discharge nozzle 33. The water adhering to the belt conveying surface 5 at the time of cleaning is scraped off into the housing 2 when the belt conveying surface 5 moves over the liquid draining portion 11 and is similarly discharged from the drain outlet 27.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. Note that any shape or material not directly described in the specification and drawings is within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are achieved. In particular, in the above embodiment, water is used as the cleaning liquid, but other liquids such as alcohol may be used. In the above embodiment, water is used as the fluid ejected from the ejection nozzle of the discharge nozzle. However, other liquids or gases such as air and carbon dioxide may be used.

DESCRIPTION OF SYMBOLS 1 ... Belt conveyor washing | cleaning apparatus 2 ... Housing 3 ... Endless belt conveyor 4 ... Arrow 5 ... Belt conveyance surface 7 ... Opening part 9 ... Brush 11 ... Liquid draining part 13 ... Isolation member 15 ... Washing nozzle 17 ... Water supply pipe 19 ... Rotation Axis 21 ... Arrow 23 ... Water supply main pipe 25 ... Valve 27 ... Drain port 29 ... Drain pipe 33 ... Drain nozzle 35 ... Supply pipe 37 ... Negative pressure supply pipe 38 ... Valve 41 ... Injection port 43 ... Angle adjusting member 45 ... Base 47 ... Adjustment mechanism 49 ... Angle adjustment attachment 51 ... Roller brush 53 ... Liquid draining part 55 ... Side wall

Claims (8)

1. A housing that is arranged so as to face the belt conveyance surface of the endless belt conveyor from the lower side, and that has an open portion that faces the belt conveyance surface on the upper side;
   At least one cleaning nozzle provided in the housing and capable of spraying a cleaning liquid toward the opening portion;
   An isolation member provided around the open portion of the housing and covering between the belt transport surface and the periphery of the open portion of the housing when the belt transport surface passes over the open portion;
   A drain pipe having a drain outlet below the housing;
   And a discharge nozzle provided at a position where the spray port faces the drain port of the drain pipe,
   The belt conveyor cleaning device according to claim 1, wherein a fluid is ejected from an ejection port of the discharge nozzle to generate a negative pressure in the housing when the belt conveyance surface passes over an open portion of the housing.
2. The fluid sprayed from the discharge nozzle and the cleaning liquid are water, and the supply of water to the discharge nozzle is performed through a pipe branched from a water supply pipe to the cleaning nozzle. The belt conveyor cleaning apparatus according to claim 1.
3. The belt conveyor cleaning device according to claim 1 or 2, wherein the isolation member is a brush.
4. The separating member includes a brush provided at least approximately half on the upstream side in the traveling direction of the belt conveying surface of the opening portion, and a liquid draining portion provided on approximately half the downstream side in the traveling direction of the belt conveying surface of the opening portion. The upper end of the liquid draining part is in contact with the belt conveying surface to drain the cleaning liquid adhering to the belt conveying surface and drop it into the housing. 4. The belt conveyor cleaning device according to any one of 3 above.
5. 5. The belt conveyor cleaning device according to claim 4, wherein a part of the brush is located inside the liquid draining part and is provided so as to overlap the liquid draining part.
6. The belt conveyor cleaning device according to any one of claims 1 to 5, wherein an ejection port of the discharge nozzle is positioned inside a drain port of the drain pipe.
7. The housing has a rectangular cross section, and the separating member is provided on the upstream side of the belt conveyance surface of the opening portion in the traveling direction of the belt conveyance surface and on the downstream side of the belt conveyance surface of the opening portion in the traveling direction. It is composed of a liquid draining portion provided and side walls covering both side surfaces of the rectangular housing,
   The upper part of the roller-shaped brush is in contact with the belt conveying surface, and the upper end of the liquid draining part is in contact with the belt conveying surface to drain the cleaning liquid adhering to the belt conveying surface and drop it into the housing. The belt conveyor cleaning apparatus according to claim 1, wherein the apparatus is a belt conveyor cleaning apparatus.
8. The angle adjustment member which supports the inclination angle of the said housing so that adjustment is possible so that the said housing can be arrange | positioned at the same angle as the inclination angle of the belt conveyance surface of the said endless belt conveyor, The characterized by the above-mentioned. The belt conveyor cleaning apparatus described in any one of Claims.

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