JP2003341842A - Device for collecting powdery granule and system for collecting and carrying waste - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for collecting powdery granule for efficiently collecting powdery granule such as dust by separating the powdery granule sucked in together with air from a suction hose from an air flow. <P>SOLUTION: A powdery granule discharging mechanism 25 comprises a cylindrical horizontal casing 27 having a discharge port 26 on a lower surface portion facing to a powdery granule falling port of a main body portion 21, a rotor shaft 33 supported on an end plate blocking both end openings of the casing 27, a plurality of blades 34 placed on the shaft 33 radially, and an elastic sealing member 35 held on end edges portions of the blades 34. The mechanism 25 is placed on a lower end portion of the portion 21, and the sealing member 53 is slidingly fitted to an inner surface of the casing 27 and the end plate. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder and granular material collection used when a dust generated in a steel mill or a settled sludge generated in a wastewater treatment facility is sucked by a suction hose and loaded on a carrier bed of a carrier vehicle. The present invention relates to a device and a waste collection and transportation system.

[0002]

2. Description of the Related Art Conventionally, as a method for transporting industrial waste such as dust generated in a steel mill or settled sludge generated in a wastewater treatment facility to a treatment facility, a method shown in FIG. -Shaped waste 11 is sucked by a suction hose 15 connected to a vacuum pump 13 of a suction work vehicle 12 via a receiver tank 14, and the waste 11 sucked by the suction hose 15 is stored in a receiver tank 14 for processing. Methods of transporting to facilities are known.

Such a transportation method is suitable when the amount of waste transported to the treatment facility is relatively small, but when the amount of waste is relatively large, a plurality of suction work vehicles are prepared or suction is performed. Since it is necessary to prepare a large-sized suction work vehicle having a large capacity, personnel expenses and equipment costs may increase. Therefore, in order to suppress an increase in labor costs and equipment costs, a powder and granular material collecting device 16 as shown in FIG.
Particulate or sludge-like waste inhaled in 5
It is considered that the cyclone-type powder and granular material collecting device 16 collects the wastewater and loads it onto the bed of the carrier vehicle 17 and transports it to the destination. In addition, reference numeral 18 in the drawing denotes a support base for supporting the powder and granular material collecting device 16 above the loading platform of the transport vehicle 17.

[0004]

According to such a method, a plurality of suction work vehicles are prepared even when the amount of waste is relatively large, or a large suction work vehicle having a large suction capacity is prepared. Since it is not necessary, the waste transportation work can be performed at low cost, but in order to efficiently collect the waste such as dust and load it on the loading platform of the transportation vehicle by the above-mentioned method, It is important to maintain a negative pressure inside the collector 16.

The present invention has been made in view of the above circumstances, and an object of the present invention is to efficiently separate powder particles such as dust sucked together with air from a suction hose from an air flow. An object of the present invention is to provide a powder and granular material collecting device that can collect the powder and granular material. In addition, the present invention is not limited to preparing a plurality of suction work vehicles or a large suction work vehicle having a large suction capacity even when the amount of waste such as dust is relatively large, and collecting and transporting the waste. It is an object of the present invention to provide a waste collection / transportation system that can be performed at low cost.

[0006]

In order to achieve the above object, the present invention introduces an air flow containing a powder or granular material into a cylindrical main body having a powder or granular material drop opening at the lower end thereof. In a granular material collecting device for separating and collecting the granular material from the air flow, a lower end portion of the main body portion, a cylindrical horizontal casing having a discharge port at a lower surface portion facing the granular material dropping port,
A rotor shaft supported by end plates closing both end openings of the horizontal casing, a plurality of blade plates radially provided on the rotor shaft, and an elastic seal member held at end edges of the blade plates. The present invention is characterized in that a granular material discharging mechanism provided is provided, and the elastic seal member is brought into sliding contact with the inner surfaces of the horizontal casing and the end plate.

With such a structure, the rotor shaft and the blade plate of the powder and granular material discharging mechanism rotate in the circumferential direction of the horizontal casing while sliding the elastic seal member in contact with the inner surfaces of the horizontal casing and the end plate. The powder and granules can be efficiently collected while maintaining a negative pressure inside the part. In this case, as in the invention described in claim 2, a configuration may be adopted in which a groove portion for holding the elastic seal member is provided at the end edge portion of each blade, and by using such a configuration, the wear is reduced. Only the elastic seal member can be replaced. Further, as in the invention according to claim 3, the horizontal casing may have a configuration including a vertically-separable semi-cylindrical lower casing and an upper casing. With such a configuration,
The elastic seal member can be easily replaced by simply separating the horizontal casing into upper and lower parts. In addition, claim 4
As in the invention described above, a configuration may be adopted in which a liquid supply hole for supplying a liquid for frictional heat reduction to the elastic seal member is provided in the horizontal casing. A liquid for reducing frictional heat can be supplied to the elastic seal member from the provided liquid supply hole, and wear of the elastic seal member can be suppressed.

Further, the waste collection / transportation system according to the present invention collects wastes such as dusts and transports them to a destination by using the powdery or granular material collecting apparatus according to any one of claims 1 to 4. By adopting such a configuration, even if the amount of waste such as dust is relatively large, it is possible to prepare a plurality of suction work vehicles or a large suction work with a large suction capacity. Waste collection and transportation work can be performed at low cost without preparing a car.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 are views showing an embodiment of the present invention, and FIG. 1 is a partial sectional front view of a powdery or granular material collecting device according to an embodiment of the present invention. As shown in the figure, the powdery or granular material collecting device 20 according to the embodiment of the present invention.
Is an intake nozzle 21a for inhaling an air flow containing powder particles.
A cylindrical main body portion 21 having an upper side surface, a top plate portion 22 that closes an upper end opening of the main body portion 21, and the top plate portion 2
2 and an exhaust head portion 23 that is inserted into the inside of the main body portion 21 so as to pass through the central portion of the main body portion 21, and a powdery or granular material dropping port 24 is formed at the lower end of the main body portion 21.

FIG. 2 is a vertical cross-sectional view of the powder and granular material collecting apparatus 20, and as shown in the drawing, a powder and granular material discharging mechanism 25 is provided at the lower end of the main body 21. This particulate discharge mechanism 2
5 is provided with a cylindrical horizontal casing 27 having a discharge port 26 on the lower surface portion facing the powder and grain dropping port 24, and inside the horizontal casing 27, a drive motor 28 (see FIG. 1) reduces a speed reducer 29. Rotor part 30 driven via
Is provided.

FIGS. 3 and 4 are views showing the structure of the rotor portion 30. As shown in FIG. 3, the rotor portion 30 has end plates 31 and 32 for closing the openings at both ends of the horizontal casing 27 via bearings. The supported rotor shaft 33 and this rotor shaft 33
A plurality of (for example, five) vane plates 34 radially provided on the
And elastic seal members 35 and 36 made of an elastic material such as rubber are provided at the edge of each blade plate 34. As shown in FIG. 4, these elastic seal members 35 and 36 are held in a groove portion 37 formed in an end portion of the blade plate 34 via a biasing member 38 such as a leaf spring. The horizontal casing 27 and the end plate 3 by the urging force of 38.
It is slidably pressed against the inner surfaces of 1, 32.

The horizontal casing 27 is composed of a semi-cylindrical lower casing 27a and an upper casing 27b in order to facilitate the replacement work of the elastic seal members 35 and 36. Further, the horizontal casing 27 is provided with a plurality of liquid supply holes 39 for supplying a liquid for reducing frictional heat to the elastic seal members 35, 36. Further, if the volume of the rotor shaft 33 between the adjacent vane plates 34, 34 is V, the number of rotations of the rotor shaft 33 is N, and the amount of the granular material falling from the main body 21 per unit time is F, then VN It is designed to rotate at a speed of> F.

A powder and granular material collecting device 20 having such a structure
When loading powder particles such as dust on the loading platform of the carrier vehicle 17 shown in FIG. 5, first, the suction hose 15 is connected to the intake nozzle 21a of the main body 21 and the exhaust head 23 is suctioned. After connecting to the suction port of the vacuum pump 13 mounted on the vehicle 12 (see FIG. 5) via the connection hose 19, the vacuum pump 13 is driven by the engine of the suction work vehicle 12. Next, in this state, when the tip of the suction hose 15 is brought close to a powder or granular material such as dust, the powder or granular material is sucked into the suction hose 15 together with air by the suction force of the vacuum pump 13, and the powder sucked into the suction hose 15 is sucked. The granules are introduced into the main body 21 from a suction nozzle 21 a provided on the upper side surface of the main body 21 of the powder and granule collecting device 20. The powder particles introduced into the body 21 collide with the inner wall surface of the body 21 and fall by gravity, and are discharged from the powder discharge mechanism 25 provided at the lower end of the body 21.

Here, when the rotor portion 30 of the powder and granular material discharge mechanism portion 25 is driven by the drive motor 28, the rotor shaft 33
The vane plate 34 rotates at a predetermined speed in the circumferential direction of the horizontal casing 27 while the elastic seal members 35 and 36 are in sliding contact with the inner surfaces of the horizontal casing 27 and the end plates 31 and 32.
Therefore, in the above-described embodiment, since the inside of the main body portion 21 does not become a positive pressure when discharging the particulate matter falling from the main body portion 21, the dust particles such as dust sucked together with air from the suction hose. The body can be separated from the air stream and efficiently collected.

Further, in the above-described embodiment, each vane plate 34 is used.
3 for holding the elastic seal members 35, 36 at the edge of the
7, the elastic seal member 3 is provided.
It is possible to replace only the elastic seal members 35 and 36 when the parts 5 and 36 are worn, and it is possible to reduce the cost required to replace the parts as compared with the case where the entire rotor portion 30 is replaced. Further, since the horizontal casing 27 is composed of a vertically-separable semi-cylindrical lower casing 27a and an upper casing 27b, the horizontal casing 2
The elastic seal members 35 and 36 can be easily replaced by simply separating the upper and lower parts. In addition, the elastic seal member 3 is inserted from the liquid supply hole 39 provided in the horizontal casing 27.
A liquid for reducing frictional heat can be supplied to 5, 5 and wear of the elastic seal members 35, 36 can be suppressed.

[0016]

As described above, according to the first aspect of the invention, the cylindrical horizontal casing having the discharge port facing the powder or granular material drop port of the main body, and the openings at both ends of the horizontal casing are closed. A rotor shaft horizontally supported by the end plate,
A granular material discharging mechanism comprising a plurality of blade plates radially provided on the rotor shaft and an elastic seal member held at the end edges of these blade plates is provided at the lower end of the main body to provide an elastic seal. By sliding the member in contact with the inner surfaces of the horizontal casing and the end plate, the inside of the main body is kept at a negative pressure, so that dust particles such as dust sucked together with air from the suction hose are separated from the air flow. Can be collected efficiently.

According to the second aspect of the invention, in addition to the effects described above, only the worn elastic seal member can be replaced. According to the invention of claim 3, in addition to the effects described above,
The elastic seal member can be easily replaced by simply separating the horizontal casing into upper and lower parts. According to the invention of claim 4, in addition to the above-mentioned effect, the liquid for reducing frictional heat can be supplied to the elastic seal member from the liquid supply hole provided in the horizontal casing, and the abrasion of the elastic seal member can be suppressed. . According to the invention of claim 5, the waste can be disposed without preparing a plurality of suction work vehicles or a large suction work vehicle having a large suction capacity even when the amount of waste such as dust is relatively large. The collection and transportation work of can be performed at low cost.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view of a powdery or granular material collecting device according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the powdery- or granular-material collecting device shown in FIG.

FIG. 3 is a diagram showing a structure of a rotor unit shown in FIG.

FIG. 4 is an exploded perspective view showing a part of the rotor section shown in FIG.

FIG. 5 is a diagram showing a waste collection and transportation system according to the present invention.

FIG. 6 is a diagram showing an example of a method of transporting waste such as dust to a destination.

[Explanation of symbols]

11 waste 12 Suction work vehicle 13 Vacuum pump 14 Receiver tank 15 Suction hose 17 Transport vehicles 18 Support stand 19 Connection hose 20 Powder and granular material collection device 21 body 22 Top plate 23 Exhaust head 24 Powder drop port 25 Powder and granular material discharge mechanism 26 outlet 27 Horizontal casing 27a Lower casing 27b Upper casing 28 Drive motor 29 reducer 30 rotor part 31, 32 End plate 33 rotor shaft 34 blades 35, 36 Elastic seal member 37 Groove 38 Biasing member 39 Liquid supply port

Claims (5)

[Claims] 1. A powdery / aggregate collecting device for inhaling an air flow containing powdery / granular material into a cylindrical main body having a powdery / granular material drop opening at its lower end to separate and collect the powder / granular material from the air flow. A cylindrical horizontal casing having a discharge port at a lower surface portion facing the powder dropping port, and a rotor shaft supported by end plates closing both end openings of the horizontal casing at a lower end portion of the main body portion; , A granular material discharge mechanism comprising a plurality of blade plates radially provided on the rotor shaft and an elastic seal member held at the end portions of the blade plates, and the elastic seal member is provided horizontally. A powdery or granular material collecting device, which is in sliding contact with the inner surfaces of the casing and the end plate. 2. The powdery or granular material collecting device according to claim 1, wherein a groove portion for holding the elastic seal member is provided at an edge portion of each vane plate. 3. The powdery or granular material collecting device according to claim 1, wherein the horizontal casing is composed of an upper casing and a semi-cylindrical lower casing that are vertically separable. 4. The powder particles according to claim 1, wherein a liquid supply hole for supplying a liquid for reducing frictional heat to the elastic seal member is provided in the horizontal casing. Body collector. 5. A waste collection and transportation system, characterized in that wastes such as dust are collected and transported to a destination by using the powdery or granular material collecting apparatus according to any one of claims 1 to 4.