JPH11300132A - Powder and granular material recovering apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save the floor space, to reduce the production cost and to lessen the pressure drop by providing a recovering apparatus with an endless filter medium traveling cyclically while shutting off air inlet, and providing the apparatus with a powder and granular material removing device for detaching the powder and granular material sticking to this filter medium from the filter medium. SOLUTION: A casing 1 is internally provided rotatably with rolls 4 respectively at lateral upper part and lower parts. The endless filter medium cyclically moved by the rolls 4 is put on the rolls 4. When the air from the respective right and left inlets 2 passes the right and left traveling parts of the filter medium, the powder and granular materials are removed by the filter medium and the air is discharged from an outlet 3. The lower traveling section 5a of the filter medium is provided thereon with the powder and granular material removing device 6 for detaching the powder and granular materials sticking to the filter medium from the filter medium. The removing device 6 is provided with plural sheets of vanes 8 at a shaft 7 rotated around the axis in a longitudinal direction and is constituted to strike off the powder and granular materials sticking to the rear surface of the filter medium by the impact generated when the rotating vanes 8 pass the lower traveling section of the filter medium.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing and recovering particulate matter contained in air, and is not limited to dust.
Used to remove and collect snow in the wind in the appropriate location in the wind tunnel sent with it.

[0002]

2. Description of the Related Art A cyclone-type apparatus is used as an apparatus for removing and recovering powdery and granular materials. However, in the cyclone type apparatus, the cyclone generating tower has a large height, which has the disadvantage of occupying a large space, and also increases the manufacturing cost of the apparatus.

[0003] In addition, since a centrifugal rising airflow is generated in the air to be treated, the pressure loss of the blower becomes large, so that a blower having a large capacity is required, and there is a demerit that the running cost is increased.

[0004]

[Purpose] The present invention solves the disadvantages of the conventional cyclone-type apparatus, saves installation space, reduces manufacturing costs, reduces pressure loss, and reduces the running cost by reducing the running cost. Available now.

[0005]

In order to achieve the above object, the present invention provides a powdery and granular material recovery apparatus comprising: a casing having air inlets on at least one of the right and left sides; And an endless filter medium that runs around while interrupting the air inlet, has an outlet for air that has passed through the filter medium on the front surface of the casing, and removes powder and particles attached to the filter medium from the filter medium. It is equipped with a particle removing device, and a groove is formed on the outer periphery of the end of each roll, and a groove formed in the longitudinal direction and a groove corresponding to the longitudinal direction is formed on a surface facing the inside of the filter medium. A belt is provided on the plate, and a belt provided inside the end of the filter medium is fitted in a groove of the roll and the sealing material, and a tension roller is provided for pressing the outer surface of the end of the filter medium. Filter media bell on contact surface And a seal block fixed to the support plate is provided, and the granular material removing device has a blade on a rotating shaft, and the rotating shaft is a driving device. And the blades beat the filter media when rotated.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the accompanying drawings. FIG. 1 is a perspective view of a basic configuration of a unit A of a granular material recovery apparatus according to the present invention, as viewed from the rear. Reference numeral 1 denotes a casing of the unit A, which includes an upper plate, a bottom plate, front and rear side plates, and left and right side plates. Each has an air inlet 2 and an air outlet 3 on the front plate. The air inlet 2 may be provided in one of the left and right side plates.

In the casing, rolls 4 are provided on the left and right upper and lower portions, respectively, so as to be rotatable around an axis in the front-rear direction. An endless filter medium 5 circulated by these rolls is hung on the rolls. Thus, when the air from the left and right inlets 2 passes through the left and right traveling portions of the filter medium, the particulate matter is removed by the filter medium, and the air from which the particulate matter has been removed is exhausted from the outlet 3.

[0008] On the lower traveling portion 5a of the filter medium 5, there is provided a powder and granular material removing device 6 for separating particles and particles adhering to the filter medium from the filter medium. This removing device 6 is provided with a plurality of blades 8 provided on a shaft 7 that is rotated around an axis in the front-rear direction, for example, as shown in FIG. The particles are knocked down, so to speak, by the impact of the rotating blades passing through the lower traveling portion of the filter medium, and the particles are collected on a tray 30 at the inner bottom of the casing.

There are various types of driving devices for rotating the filter medium. As an example, as shown in FIG.
Then, the upper roller is driven to rotate via a power transmission mechanism (for example, a mechanism in which a belt or a chain 10 hung on a motor pulley or a sprocket 9 is hung on a pulley or a sprocket 11 of one of the right and left rolls 4). As shown in FIG. 3, the granular material removing device 6 includes a power transmission mechanism (for example, a motor pulley or a belt 1
3. Pulley or sprocket 14 of shaft 7 of removing device
).

Two V-belts 15 are attached to the inner surfaces of the front and rear ends of the filter medium 5, respectively. The V-belts 15 are fitted in grooves 16 formed on the outer periphery of the end of each roll. The seal member 17 is slidably fitted in the groove 18 of the seal member 17 facing the inner surface of the front and rear ends. The seal member 17 is made of a material having a low coefficient of friction, and is attached to a support plate 19 fixed to the inner surface of the casing. .

The outside of the front and rear end portions of the filter medium 5 is pushed by the tension roller 20 so that the V-belt 15 can slip into the groove 18 of the seal member 17 although it is dense, or a slight gap is formed between the V-belt 15 and the groove 18. Although it has a labyrinth sealing function, it is adapted to be fitted into the sealing material 17, and the support 21 of the tension roller is mounted inside the casing. The tension roller 20
Has a pressing force applied to the filter medium by an appropriate spring mechanism, and there are various pressing force applying mechanisms, and a description thereof will be omitted.

An end of each roll 4 is provided with a sealing block 22.
The sealing block is attached to the supporting plate 19 for the sealing member 17. The concave portion 23 of the block 22 surrounds the end of the roll except for the portion where the roll 4 comes into contact with the filter medium (90 ° in terms of the arc angle of the roll), and the V belt 15 is fitted on the surface of the block 22 that comes into contact with the filter medium 5. A round groove 24 is formed.

9 and 10 show a unit housing housing 25.
An example is shown in which two units A of the recovery device are provided. In this embodiment, the central air in the air from the housing inlet 26 enters each of the units A through the central passage 27 through the filter medium on the unit-facing surface. The air is exhausted to the wind tunnel 29 of the snow test apparatus.

The air on both the left and right sides from the housing inlet 26 enters between the left and right side plates of the housing and each unit through the left and right passages 28, passes through the outer filter medium, enters each unit, and is exhausted from each outlet. Then each unit A, A
The powdery material is collected by a filter material, and the collected powdery material is separated from each filter material by a removing device and collected. The blower is provided, for example, at an appropriate position in the wind tunnel, and circulating air from the blower in the wind tunnel passes through the unit.

[0015]

[Function / Effect] The air to be treated flowing into the casing 1 from the air inlet 2 passes through the filter medium 5, and when the filter medium passes, the particulates in the air to be treated are collected by the filter medium 5 to remove the particulates. The treated air is exhausted from the air outlet 3. The particulate matter collected by the filter medium is separated from the filter medium by the granular material removing device 6 and collected.

Therefore, unlike the conventional cyclone type recovery apparatus, there is no need to provide a cyclone generating tower having a large height, so that the installation space can be saved and the manufacturing cost can be reduced. There is no need to generate a special airflow in the air, and the pressure loss of the blowing is small, so that the running cost can be reduced.

Further, the belt 1 provided inside the end of the filter medium 5
5 is fitted into the groove 16 on the outer periphery of the roll 4, the groove 18 of the sealing material 17 and the groove 24 of the sealing block 22, and the filter medium is pressed inward by the tension roller 20 from the outside. The particles in the processing air hardly leak to the processing air side, and the particles are reliably collected by the filter medium. Furthermore, the diameter of the granular material to be recovered can be freely selected by replacing the filter medium.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a unit of a granular material recovery apparatus according to the present invention from the rear.

FIG. 2 is an enlarged longitudinal sectional view showing an upper part of the unit.

FIG. 3 is an enlarged longitudinal sectional view showing a lower portion of the unit.

FIG. 4 is a partially cutaway front view of the unit.

FIG. 5 is a vertical sectional view taken along line VV of FIG. 4;

FIG. 6 is a horizontal sectional view taken along the line VI-VI of FIG. 5;

FIG. 7 is an enlarged plan view showing an end of a roll.

FIG. 8 is a vertical sectional view taken along line VIII-VIII in FIG. 7;

FIG. 9 is a longitudinal sectional view showing an example in which two units are provided in a unit housing.

FIG. 10 is a plan view of the above.

[Explanation of symbols]

A: Unit of the granular material recovery device 1: Casing 2: Air inlet 3: Air outlet 4: Roll 5: Endless filter media 6: Granular material removing device 7: Shaft 8: Blade 9: Pulley (sprocket) 10: Belt (Chain) 11: Pulley (sprocket) 12: Pulley (sprocket) 13: Belt (chain) 14: Pulley (sprocket) 15: V-belt 16: V-belt groove 17: Seal material 18: V-belt groove 19 : Support plate 20: Tension roller 21: Support 22: Seal block 23: Block recess 24: V belt groove 25: Unit housing 26: Housing entrance 27: Central passage 28: Left and right passage 29: Wind tunnel 30: Tray for collecting particulate matter

Claims (3)

[Claims] 1. An endless filter medium which runs around the air inlet in a casing having an air inlet on at least one of the left and right sides, and an outlet for air passing through the filter medium is provided on a front surface of the casing. And a particulate material recovery device provided with a particulate material removing device for separating the particulate material attached to the filter material from the filter material. 2. An endless filter medium, which is hung on front and rear rolls arranged at upper and lower portions and runs around while blocking the air inlet, is provided in a casing having an air inlet on at least one side on the left and right sides. An outlet for air that has passed through the filter medium is provided on the front surface of the casing, and a device for removing powder and granules attached to the filter medium from the filter medium is provided, and a groove is formed on the outer periphery of the end of each roll. In addition, a sealing material in which a groove corresponding to this groove in the longitudinal direction is formed on the surface facing the inside of the filter medium is provided on a support plate fixed to the inside of the casing, and a belt provided on the inside of the end of the filter medium is formed of a roll and a seal material. A tension roller that fits into the groove and presses the outer surface of the end of the filter medium; a groove is formed at an end of each roll so that a belt of the filter medium fits into a contact surface with the filter medium; Sea fixed to Granular substance collecting device formed by providing a use block. 3. The apparatus according to claim 1, wherein the granular material removing device has a blade on a rotating shaft, and the rotating shaft is rotated by a driving device so that the blade strikes the filter medium. Granule collection device.