JPH08119430A - Cleaning device for belt conveyor device for coal conveyance - Google Patents

Abstract

PURPOSE: To clean off the coal dust dropped on the surface of a gallery floor mechanically without resorting to human labor by operating a dust collecting device, allowing a dolly to transversely run on the floor surface and under return rollers of a belt conveyor, and thereby collecting the coal dust from on the floor surface and under the return rollers. CONSTITUTION: When automatic cleaning is started, a feed screw is operated, and a suction nozzle 19 is moved toward a side wall 1a through a supporting device 31. Thereby the end of a suction hole 24 is protruded from the side face of a dolly 5 and positioned at the side wall 1a, and in this condition, forward running is started. A suction device is operated to make sucking the dropped coal dust within the suction hole 24 and spraying the exhaust air by a spray nozzle, and the dropped dust is separated from the floor surface 2 and collected to a filter device. When the dolly running 5 advances and a collision sensor senses a collision, the dolly 5 is stopped and then run transversely by a cylinder 17, and the height of a suction nozzle 19 is adjusted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt conveyor device for transporting coal, and more particularly to a cleaning device therefor.

[0002]

2. Description of the Related Art Conventionally, as a device for transporting coal to a boiler or the like, there has been provided a belt conveyor device for transporting coal in which a gallery is laid between transit buildings and a belt conveyor for transporting coal is laid on the gallery. ing. Since this type of belt conveyor device is desired to be installed indoors, compared to an outdoor type in which a belt conveyor for coal transportation is installed on the frame, there is no scattering of dust due to wind, and there is no noise during coal transportation. Radiation can be reduced, and workers in the gallery can be protected from wind, rain, and snow.

[0003]

However, it is still necessary to clean the floor surface, and in particular, when cleaning under the return roller, the worker has to take a bent posture or a middle waist posture. However, there has been a problem in that much effort and time has to be spent on this. In addition, cleaning work in such a dust environment is harmful to the human body, and cleaning under the return roller when the belt is rotating
It was dangerous work, and there was a problem in this respect as well.

It is an object of the present invention to provide a cleaning device for a belt conveyor device for coal transportation, which is capable of cleaning fallen powder that has fallen on the floor surface by hand without generating dust.

[0005]

[Means for Solving the Problems] A first means is a coal conveyor belt conveyor apparatus in which a belt conveyor is laid on a floor surface, and a self-propelled carriage traversing the floor surface is provided under an idler on the return side of the belt conveyor. Is formed at a height capable of traversing, and a dust collector for cleaning the floor surface is attached to this self-propelled carriage, and a suction nozzle of the dust collector is traversably attached to the right or left portion of the suction port. Is configured to protrude from the side of the self-propelled carriage in the vehicle width direction.

A second means is the same as the first means, except that the inside of the suction port of the suction nozzle is divided into a passage for suction and a passage for blowing air on the floor surface, and the exhaust pipe of the dust collector is It is connected to a passage for blowing the wind.

[0007]

In the first aspect of the invention, the dust collector is operated,
When the traveling carriage is made to traverse under the return roller of the floor conveyor and the floor conveyor, the dust under the return roller of the floor conveyor and the belt conveyor is collected by the dust collector.
At this time, if the suction nozzle is made to traverse and the right or left part of the suction port is projected from the side of the self-propelled carriage in the vehicle width direction, the outside of the side of the self-propelled carriage can be cleaned. can do.

In the second aspect of the invention, the exhaust gas of the dust collector is blown out from the passage for blowing the air on the floor surface. By this blowing of the exhaust gas, the fallen powder is forcibly separated from the floor surface and collected from the suction port to the dust collecting device.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a cleaning device for a belt conveyor for coal transportation according to the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 7, on a floor surface 2 of a gallery 1 which is provided over a transit building or the like, a belt conveyor 4 for coal transportation is laid parallel to the gallery 1 and a floor surface is provided. A self-propelled carriage 5 is arranged to clean the vehicle 2.

As is well known, the belt conveyor 4 has a tail pulley and a head pulley (not shown) which are stretched over the left and right frames 7 of a conveyor table 6 extending in the longitudinal direction, and a carrier roller between the tail pulley and the head pulley. The frame 10 for attaching 9 and the bracket 12 for attaching the return roller 11 are attached, the tail pulley,
The head pulley, the carrier roller 9 and the return roller 11 are configured by endlessly belting the belt 13.

On the other hand, the self-propelled carriage 5 is, as shown in FIG.
At the four corners of the bottom surface portion 14, traveling wheels 15 for traveling the self-propelled carriage 5 in the longitudinal direction of the gallery 1 are provided, and the self-propelled carriage 5 is provided inside each of the traveling wheels 15 along the width direction of the gallery 1. A traverse wheel 16 for traversing is provided.
In particular, each of the traverse wheels 16 is attached to the tip end portion of the first cylinder 17 which is attached vertically downward to the lower surface portion of the self-propelled carriage 5.

This is because the stroke of the first cylinder 17 is shortened so that the transverse wheel 16 is separated from the floor surface 2 and only the traveling wheel 15 is landed on the floor surface so that the self-propelled carriage 5 can travel. This is because the self-propelled carriage 5 can be traversed by extending the first cylinder 17 and landing only the traverse wheels 16 on the floor surface 2.

The circuits for operating the first cylinders 17 (pneumatic circuit, hydraulic circuit) are configured to simultaneously perform expansion / contraction switching of the same stroke, and
The stroke of each first cylinder 17 is
When the vehicle is extended, the vehicle height of the self-propelled carriage 5 is set to be lower than the height from the floor surface 2 to the return roller 11.

A drive device (not shown) such as a motor is connected to the traveling wheel 15 and the traverse wheel 16 via a clutch, a sprocket, and a chain (none of which is shown). It is configured to traverse and run together.

Therefore, the self-propelled carriage 5 can freely travel on the floor surface 2 and can traverse under the return roller 11 without any obstacle.

As shown in FIG. 2, the self-propelled carriage 5 has a dust collector 18 attached thereto.

The dust collecting device 18 includes a suction nozzle 19, a filter device 20 for collecting and collecting only falling powder from the air sucked by the suction nozzle 19, and a suction device for sucking dust into the filter device 20. It is composed of a suction device 21 for applying a negative pressure, an exhaust device 22 for exhausting clean air purified by the filter device 20, and an air blowing nozzle 23 provided in the suction nozzle 19.

The suction nozzle 19 is formed in a trumpet shape that is long in the vehicle width direction and short in the vehicle length direction, and the air blowing nozzles 23 are nozzles arranged in the suction port 24 at intervals in the vehicle width direction. A communication pipe 26 extending in a direction intersecting with the rows of the nozzle main bodies 25 is connected to the main body 25 so as to communicate therewith, and the communication pipe 26 has an exhaust pipe 28 having one end connected to an exhaust port 27 of the exhaust device 22. It is configured by connecting the ends so that they communicate with each other.

Therefore, the dust collector 18 allows the filter device 21 to collect all the fallen powder while keeping the atmosphere in the gallery 1 clean.

The attachment of the dust collector 18 will be described in detail. The filter device 20, the suction device 21, and the exhaust device 22 are, as shown in FIGS. 3 and 6, a room 29 defined in the rear part of the self-propelled carriage 5. Stored in the suction nozzle 19,
The traverse rail 30 is movably supported by a supporting device 31. This traverse rail 30 is shown in FIGS.
Alternatively, as shown in FIG. 6, it is made of a structural steel material having a U-shaped cross section, which is horizontally stretched over both side plates 34 of the traveling carriage 5 with the slit 35 facing upward. A feed screw 33 that is driven to rotate is rotatably supported.

The supporting device 31 has a substantially rectangular cross section and is mounted on the traverse rail 30 so as to traverse freely.
And a pawl 36 provided on the inner surface (fitting surface) of the support tool 37 and extending into the traverse rail 30 through the slit 35 of the traverse rail 30 and engaged with the feed screw 33, and the support tool 3
7 is attached to the lower surface of the support member 37 and the suction nozzle 1
The second cylinder 38 suspends 9 so that it can be lifted and lowered.

Therefore, when the second cylinder 38 is extended so that the suction nozzle 19 is located below the trolley bottom surface portion 14 and the feed screw driving motor 32 is rotated in the forward and reverse directions in this state, the suction nozzle 19 is rotated. Is its lead screw 3
3, the right or left part of the suction port 24 is projected further outward than the side plates 34 of the self-propelled carriage 5. Therefore, the right or left portion of the suction port 24 can be located near the side wall 1a of the gallery 1, and the side wall 1a of the gallery 1 can be cleaned cleanly.

A controller (not shown) for controlling the traveling and traversing of the self-propelled carriage 5 is composed of an electric circuit such as a CPU or a sequence circuit, and is a distance provided at the front and rear portions of the self-propelled carriage 5 in the traveling direction. The rotation direction of the feed screw driving motor 32 and the extension / contraction of the first cylinder 17 are switched by inputs from the sensor 39 and the collision sensor (mechanical contact sensor) 40, and the self-propelled carriage 5 traverses or travels, or traverses or travels stop. Is configured to do.

An example of control by the controller and operation of the self-propelled carriage 5 will be described below.

When a manual switch (not shown) is turned on and the start of automatic cleaning is input, the controller operates the feed screw driving motor 32 to move the suction nozzle 19 to the suction nozzle 19 as shown in FIGS. To the side wall 1a, and the right or left portion of the suction port 24 is moved to the self-propelled carriage 5
The side surface of the side wall 1a is further protruded from the side surface of the side wall 1a to be positioned at the side of the side wall 1a, and in this state, the vehicle starts traveling forward.

By the operation of the suction device 21, the suction port 24
In the inside, as shown in FIG. 5, suction of falling powder and blowing of exhaust by the blowing nozzle 23 are simultaneously performed. Therefore, the fallen powder is forcibly separated from the floor surface 2 and collected in a storage bag (not shown) of the filter device 20.

The traveling of the self-propelled carriage 5 progresses, and the collision sensor 40
When there is a collision input by the controller, the controller disengages the clutch, brakes the vehicle to stop the traveling of the self-propelled carriage 5, and then extends the first cylinder 17 and the second cylinder 38 to allow the self-propelled carriage 5 to traverse. Then, the suction port 24 of the suction nozzle 19 is readjusted to a height suitable for sucking fallen powder.

Subsequently, the controller switches the clutch to transmit the driving force to the traverse wheels 16 and cause the self-propelled carriage 5 to traverse. When the distance measured by the distance sensor 39 immediately after the traverse becomes equal to the distance stored in the memory in advance, the controller disengages the clutch and performs braking.
The self-propelled carriage 5 is stopped at that position, and then the drive device is reversed to cause the self-propelled carriage 5 to perform traveling cleaning of the second row.

As described above, if the cleaning is repeated by switching between the traverse and the traveling by the controller, the floor surface 2 and the printer are returned.
The lower part of the controller 11 is automatically cleaned.

[0031]

In summary, according to the present invention, the following excellent effects are exhibited.

(1) Floor cleaning and floor under the return roller can be mechanically cleaned, and labor and time conventionally required for cleaning work can be reduced.

(2) It can be cleanly cleaned without raising dust.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a self-propelled carriage according to the present invention.

FIG. 2 is a diagram for explaining the configuration of a dust collector according to the present invention.

3 is a cross-sectional view taken along the line AA of FIG.

4 is a sectional view taken along the line BB of FIG.

FIG. 5 is a sectional view taken along line CC of FIG. 3;

FIG. 6 is a sectional view taken along the line DD of FIG.

FIG. 7 is a diagram showing a relationship among a gallery, a belt conveyor, and a self-propelled carriage according to the present invention.

[Explanation of symbols]

 1 Gallery 1a Side wall 2 Floor surface 4 Belt conveyor 5 Self-propelled carriage 11 Return roller 18 Dust collector 19 Suction nozzle 24 Suction port 28 Exhaust pipe

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B65G 47/52 101 B

Claims (2)

[Claims] 1. A belt conveyor device for coal transportation having a belt conveyor laid on a floor surface, wherein a self-propelled carriage traversing the floor surface is formed at a height that can traverse below an idler on the return side of the belt conveyor. A dust collector for cleaning the floor surface is attached to the self-propelled carriage, and a suction nozzle of the dust collector is attached to the self-propelled carriage so that the suction nozzle can traverse and the right or left part of the suction port is on the self-propelled carriage side. A cleaning device for a coal conveyor belt conveyor device, characterized in that the cleaning device is configured to be able to project to the outside of the section. 2. The inside of the suction port of the suction nozzle is divided into a passage for suction and a passage for blowing air on the floor surface, and the exhaust pipe of the dust collector communicates with the passage for blowing the wind. The cleaning device for a belt conveyor device for coal transportation according to claim 1, wherein the cleaning device is connected to each other.