JPH078060Y2 - Dust remover - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust remover, and more particularly to a dust remover suitable for use in a factory such as an iron mill or tunnel construction.

[0002]

2. Description of the Related Art In the refining of various metals such as steel mills, processing facilities, cement manufacturing plants, etc., a large amount of dust is generated because powdery or granular materials are handled as raw materials or products, It deteriorates the working environment and reduces the quality of the product. As a countermeasure against this, a vacuum car is used for cleaning, but the vacuum car is a large-scale device incorporating a vacuum pump and a blower, and requires a large space for carrying in / out and cleaning work. Therefore, it is not possible to carry out the cleaning frequently because it is necessary to clean up the surrounding equipment prior to cleaning, and it is difficult to clean the intricate parts between the facilities. Therefore, the actual situation is that dust and dirt that are difficult to remove are accumulated. Therefore, in many cases, a method has been adopted in which a nozzle is attached to the discharge pipe from the existing air compressors and air is jetted from this, but dust and dirt are not removed and accumulated dust is accumulated. There was almost no effect because it simply blows away dust and dirt with the pressure of the air to diffuse it.

[0003]

SUMMARY OF THE INVENTION The present invention was made by research to solve the above problems, and its purpose is to eliminate the need for vacuum pumps and fans. It is an object of the present invention to provide a dust remover having a simple structure and capable of removing dust or dust generated in a factory or the like by suction according to the state of the dust or dust, or by destructing the stack by suction or removing it. In order to achieve the above-mentioned object, the present invention has a coaxial passage in the front and rear around a spherical seat, an upstream passage is connected to a nozzle, and a downstream passage is connected to a dust collector through a hose. The seat includes a casing having an air introducing portion connected to the compressed air supply line, a ball built in the spherical seat, and a mechanism for rotating the ball, and the ball has a squeezing hole in a central portion. And a passage hole having a diameter enlarged toward both ends with this as a boundary, and first and second bends in which tips are always passed through the left and right passage holes and which are selectively communicated with the air introduction portion by rotation of the ball. The two air guide holes are provided.

[0004]

The present invention makes effective use of the compressed air supply source that is often provided in factories and construction sites, and only the compressed air from this compressed air supply source sucks and discharges dust, collapses solidified dust, and removes the hose. The blockage can be released. That is, when suctioning, the passage holes 6a and 60b are connected to the passages 500a and 5b.
The ball 6 is positioned so as to be coaxial with 00b, and the nozzle is directed toward the dust. In this way, the second air guide hole 61
Since b communicates with the air introducing portion 9, compressed air flows at a high speed into the downstream passage hole 60b, thereby generating suction force due to negative pressure in the upstream passage hole 60a and increasing the flow velocity by the throttle hole 60. . Therefore, a strong suction force is generated in the nozzle 2, and the dust is sucked and sent to the dust collector 3. When collapsing the solidified dust, the ball 6 is rotated by the rotating mechanism 7 to a position where the passage hole 60b communicates with the air introducing portion 9. In this way, the downstream side passage 500b is blocked by the solid portion of the ball 6, and the first and second air guide holes 61a and 61b communicate with the nozzle 2, so that compressed air flows from the upstream side passage 500a. The dust ejected from the nozzle 2 is effectively separated and dispersed by the air pressure. If the ball 6 is returned to the original position again in this state, the above-mentioned suction state is achieved, so that the dust can be efficiently sucked and removed. When stopping suction or jetting in order to see the cleaned state, the rotation mechanism 7 causes the ball 6 to move the first and second air guiding holes 61a and 61b into the air introducing portions 9 and 1.
It suffices to move to a position displaced by 80 degrees, whereby the passage holes 60a and 60b communicate with the passages 500a and 500b, but since compressed air is not introduced, the nozzle 2 does not inject or suck. When the hose 8 is clogged due to suction of foreign matter or the like, the ball 6 may be slightly rotated counterclockwise from the suction position, whereby the first air guide hole 6
Since 1a communicates with the air introducing portion 9, a negative pressure is applied to the passage hole 60b facing the hose side, and a suction force acts on the hose 8, so that the foreign matter in the hose moves to the nozzle side. Therefore, it is possible to perform various dust removing operations according to the dust situation simply by operating the rotational position of the ball 6.

[0005]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an outline of the dust removing device according to the present invention. Reference numeral 1 denotes an apparatus main body, an upstream side thereof is connected to a dust removing nozzle 2, a downstream side thereof is connected to a dust collecting apparatus 3, and a compressed air supply source 4 such as a compressor or a receiver tank is connected to the apparatus main body. . The dust collecting device 3 is not limited,
In this embodiment, a bag filter in which a filter cloth 31 is stretched over the housing 30 is used, but other types of filter dust collectors, centrifugal dust collectors, scrubbers, etc. may be used.

FIG. 2 shows the details of the apparatus main body 1.
Casing casings 5a, 5b and casings 5a, 5
It has a ball 6 built in b and a mechanism 7 for rotating the ball 6. The halved casings 5a and 5b have passages 500a and 500b, respectively, following the spherical seat, and are integrated by superposing and tightening the inner flanges 50a and 50b, and the upstream casing 5a is formed by the outer flange 51a. It is connected to the nozzle 2. The nozzle 2 may be connected not directly but through a hose. Further, the hose 8 is connected to the casing 5b on the downstream side via an outer flange 51b.
Is connected to the suction port 30 of the dust collector 3.

The ball 6 has a passage hole penetrating therethrough, but in the present invention, it has a narrowing hole 60 which is narrowed in the central portion and has a narrow diameter. Or, the passage holes 60a and 60b which are enlarged in a tapered shape are formed. The first and second air guide holes 61 are formed in the ball 6 so that the tip openings of the balls 6 face a predetermined angle that is non-orthogonal to the passage holes 60a and 60b, that is, each passage hole faces forward.
a and 61b are bored, and the first and second air guide holes 61a and 61b have a required curvature so that the rear end opening is juxtaposed with the outer peripheral surface of the ball at a relational position orthogonal to the throttle hole 60. It is bent.

An air introducing portion 9 is provided in one of the casings 5a and 5b so as to penetrate the wall thickness, and the air introducing portion 9 is provided with an compressed air supply source 4 by an air hose 90 having an opening / closing valve 91. It is connected to the. The mechanism 7 for rotating the ball 6 includes a main shaft 71 that is inserted into a shaft cylinder 70 that extends radially from one of the casings 5 a and 5 b and that engages with the outer peripheral surface of the ball 6, and an operating shaft 72 that rotates the main shaft 71. The operating shaft 72 is adapted to be moved manually or by an actuator such as a motor. In this embodiment, in the normal position (position 1) where the operation shaft 72 is not operated, the ball 6 is positioned so that the passage holes 60a and 60b are on the same axis as the casings 5a and 5b as shown in FIG. In that state, the air introducing portion 9 communicates with the opening of the second air guide hole 61b. The ball 6 is rotatable by 180 ° in the clockwise direction, and is rotatable in the counterclockwise direction up to a rotation angle at which the first air guide hole 61a communicates with the air introducing portion 9.

[0009]

The operation of the device of the present invention will be described below. Nozzle 2 is used to remove dust in the steel mill factory.
Opening and closing valve 91 of air hose 90 while holding the
open. At this time, as shown in FIG. 3, the passage holes 60a and 60b of the ball 6 are on the same axis as the casings 5a and 5b, and the second air guide hole 61b opening to the passage hole 60b on the downstream side is the air introduction portion. It is connected to 9. For this reason, the compressed air from the compressed air supply source 4 is not supplied to the second air guide hole 61b.
From the downstream side to the inside of the passage hole 60b and the passage 500a at a high speed. Due to the flow, negative pressure is generated in the upstream passage hole 60a, and suction force is generated in the upstream passage hole 60a. Moreover, since there is the throttle hole 60 in the center of the passage hole, the flow velocity increases. Due to such an ejector effect, a strong suction force is generated in the nozzle 2 and dust is sucked. Then, the dust passes through the passage holes 60a and 60b, is sucked into the dust collector 3 together with the air through the hose 8, and is collected by the filter cloth 31.

[0010] The dust in the factory gradually becomes closer to a solid state due to the continuous accumulation state and adhesion state, and it is often difficult to effectively remove dust only by suction as shown in FIG. In such a case, the operation shaft 72 is operated to operate the main shaft 7.
1, the ball 6 is rotated clockwise by about 90 degrees as shown in FIG. that way,
The rear end openings of the first and second air guide holes 61a and 61b communicate with the passage 500a of the upstream casing 5a, and the ball solid portion 62 blocks the passage 500b of the downstream casing 5b. The opening sides of the passage holes 60a and 60b face the inner walls of the casings 5a and 5b, and the air introducing portion 9 communicates with the openings of the passage holes 60b. As a result, compressed air is supplied to the passage holes 60b and 60a, and is ejected from the front end openings of the first and second air guide holes 61a and 61b to the rear end openings,
The accumulated dust is ejected from the nozzle 2 through the passage 500a. Therefore, the dust in the solidified state is dispersed and separated by the impact of the air pressure. Then, by rotating the ball 90 degrees counterclockwise again, the state shown in FIG. 3 is obtained, and thus the dispersed and separated dust can be efficiently sucked and removed.

When viewing the cleaned condition, the operation shaft 72 is moved further 90 degrees clockwise from the position shown in FIG.
It rotates by 180 degrees (180 degrees from the state of FIG. 3). In this way, the passage holes 60b, 60a communicate with the passages 500b, 500a of the casings 5b, 5a, but the ball portion 6 at a 180-degree symmetrical position with the first and second air guide holes 61a, 61b.
Since 2 is located in the air introduction part 9, the introduction of compressed air is blocked, and the nozzle 2 does not perform suction force or air injection. If the hose 8 should be blocked due to suction of foreign matter, etc., the required angle should be changed counterclockwise from the state shown in FIG.
The ball 6 is rotated (for example, about 10 degrees). In this way, the rear end opening of the casing 5a of the first air guide hole 61a communicates with the air introduction portion 9, and the compressed air flows from the passage hole 60a to the upstream side. As a result, a negative pressure is generated on the passage hole 60b side, and a suction force acts on the hose side, so that the foreign matter clogged in the hose is moved to the nozzle side. Then, if necessary, the state shown in FIGS. 5 to 3 is set, and the suction force acts on the nozzle side by this, so that the foreign matter is pressed from the left and right. Therefore, the hose can be easily released and cleaned without disassembling each part.

[0012]

According to the present invention described above, the passages 500a, 500 coaxial with the front and rear around the spherical seat are provided.
b, the upstream passage 500a is connected to the nozzle 2, the downstream passage 500b is connected to the dust collector 3 via a hose, and the spherical seat portion is provided with the air introduction portion 9 connected to the compressed air supply line. The casing 5a, 5b, the ball 6 built in the spherical seat, and the mechanism 7 for rotating the ball 6, and the ball 6 has a squeezing hole 60 at the center.
With the passages 60a and 60b having a diameter enlarged toward both ends with this as a boundary, the tips are always passed through the passage holes 60a and 60b on the left and right, and the air introduction portion 9 is rotated by the rotation of the ball 6.
Since it has the first and second bent two air guiding holes 61a and 61b capable of selectively communicating with, it does not require a special suction power mechanism such as a vacuum pump or a fan, and is a factory. A simple operation of connecting a compressed air supply source which is always provided to the air introduction part 9 and rotating the ball 6 causes dust from the nozzle by displacement of the passage holes 60a and 60b and the air guide holes 61a and 61b. Suction and discharge, breaking the dust collector side to eject air from the nozzle to destroy the solidified state of dust, and sucking the dust collector side to clear the hose clogging, the structure is simple And because it is compact, it can reliably remove dust etc. without taking up space in a narrow place such as a factory or tunnel, and it is inexpensive because it does not use a special suction power mechanism such as a vacuum pump or fan. Can provide How excellent effect can be obtained.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an outline of the device of the present invention.

FIG. 2 is a sectional view showing a main part of the device of the present invention.

FIG. 3 is a sectional view showing a position 1 of the device of the present invention.

FIG. 4 is a sectional view showing a position 2 of the device of the present invention.

FIG. 5 is a sectional view showing a position 3 of the device of the present invention.

FIG. 6 is a sectional view showing a position 4 of the device of the present invention.

[Explanation of symbols]

 1 Device body 2 Nozzle 3 Dust collector 5a, 5b Casing 6 Ball 7 Rotating mechanism 8 Hose 9 Air introducing part 60a, 60b Passage hole 61a First air guide hole 61b Second air guide hole 500a, 500b Passage

Claims (2)

[Scope of utility model registration request] 1. A passage 5 coaxial with the front and rear of a spherical seat.
An air introduction portion 9 having an upstream passage 500a connected to the nozzle 2, a downstream passage 500b connected to the dust collector 3 via a hose, and a spherical seat portion connected to a compressed air supply line. Casings 5a, 5b provided with
And a ball 6 built into the spherical seat and a mechanism 7 for rotating the ball 6, the ball 6 having a central aperture 60 and a diameter extending toward both ends with the aperture 60 as a boundary. The enlarged passage holes 60a and 60b and the left and right passage holes 60
a and 60b are provided with first and second bent air guiding holes 61a and 61b which can always communicate with the air introducing portion 9 by the rotation of the ball 6 and whose tip always communicates. A dust removal device. 2. The dust remover according to claim 1, wherein the casings 5a and 5b are divided into two parts and are integrated by flanges 50a and 50b.