JPH08103620A - Dust collection treating device - Google Patents

Abstract

PURPOSE: To maintain industrial hygiene for a worker and to improve workability by surely removing dust generated in grinding and polishing by a small and portable device. CONSTITUTION: A dust sucking means 2 is installed in a dust collecting duct 1. A water tank part 4 is installed in the bottom part of a casing 3 connected to the termination part of the dust collecting duct 1. In the casing 3, an air flowing pass is formed of an air flowing means 5 consisting of an air guiding wall and a bypass wall for guiding dust to the water tank 4 and a sprinkler means 6 is installed above the air flowing pass, and also an air exit 7 is provided at the termination part of the air flowing pass.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting and processing apparatus capable of reliably removing dust generated by grinding and polishing a material to be polished by a small and portable device.

[0002]

2. Description of the Related Art Conventionally, a grinding machine such as a disk sander has been used for grinding and polishing the surface of a material to be polished, for example, a stone material. Since this work produces a large amount of dust, this dust countermeasure is used. A portable dust collector connected to a disk sander is generally used.

As shown in FIG. 7, this is a dust collecting hose 50 connected to a dust collecting adapter (not shown) of a polishing machine.
Is connected to the intake port 52 of the outer frame 51 having a handle at the top, and the dust sucked up with air by the dust suction motor 53 mounted inside the outer frame 51 is filtered by the filter 54.
The dust is removed by passing through the exhaust port 55 of the outer frame 51.
Air is discharged from the filter, and the filter 54 is regularly cleaned to obtain a certain dust removal effect.

However, since this device has a structure in which dust is adsorbed on cloth, sponge, etc., clogging occurs immediately in a short time, and the dust removing effect is reduced.
The main grinding and polishing work must be stopped frequently to clean the filter.

Since the dust collecting hose having a small diameter is used to absorb the dust, only a narrow area can be collected, and a wide area scattered around the work cannot be sufficiently removed.

[0006] When the filter is cleaned, dust is scattered in the atmosphere again, so that it is necessary to remove this secondary dust. There were various problems such as.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and is provided with a dust suction means in the dust collecting duct, which is connected to the end of the dust collecting duct. A water tank is provided at the bottom of the frame, and an air flow path is formed by an air flow means composed of an air guide wall and a detour wall for guiding dust to the water tank, and a water sprinkling means is provided above the flow air path. At the same time, by providing an exhaust port at the end of the air flow path, dust generated by grinding and polishing of the material to be polished can be reliably removed by a small, portable device to maintain worker hygiene and work. An object of the present invention is to provide a dust collection processing device capable of improving the property.

[0008]

Means for Solving the Problems The means of the present invention for achieving the above-mentioned object are a dust collecting duct connected to a dust generating source, dust suction means mounted in the dust collecting duct, and A frame connecting the end of the dust collecting duct to one side, a water tank portion provided at the bottom of the frame body, an air guide wall for guiding dust from the dust collecting duct to the water tank and air meandering in the frame body. An air flow means composed of a bypass wall in which a flowing air flow path is formed, a water sprinkling means provided in an upper part of the flow air path of the flow air means in the frame, and an exhaust port provided at a terminal end of the flow air path. And the configuration of the dust collection processing device provided with.

As another structure, a dust collecting duct connected to a dust generating source, a frame having one end thereof connected to the end of the dust collecting duct, and a water tank provided at the bottom of the frame. When,
An air flow means comprising an air guide wall for guiding the dust from the dust collection duct to the water tank in the frame and a detour wall forming a flow path through which air meanders, and an air flow in the air flow means in the frame. The water spray means is provided at the upper part of the channel, the exhaust port is provided at the end of the airflow channel, and the suction means is connected to the exhaust port and draws dust from the dust source into the frame.

Further, a rectifying means is attached in the dust collecting duct.

The water sprinkling means is connected to a submersible pump having a water supply section facing the water tank section in the frame, a water supply tube having one end connected to the discharge section of the submersible pump, and the other end of the water supply tube. It consists of a watering nozzle.

Further, a dust filter is attached to the exhaust port.

[0013]

The present invention configured as described above has the following effects.

When a dust collecting duct connected to one side of the frame is connected to the dust generating source and the suction means in the dust collecting duct is operated, the suction force by the suction means acts on the dust collecting generating source. Then, the dust in the air is sucked together with the surrounding air and flows into the frame.

Then, the dust and air are guided toward the water tank portion inside the frame by the air guide wall in the air flow means, and the dust that has come into contact with the water surface is adsorbed by the water and infiltrated into the water tank. .

The air flows through the airflow passage formed in a meandering shape by the air guide wall and the bypass wall, and is touched by the sprinkling means provided in the middle of the airflow passage to fall into the water tank portion. The mixed dust of is dissolved in water.

Thus, while passing through the airflow passage in this airflow means, the dust is brought into contact with the surface of the water or is infiltrated into the water tank by water spraying with the water spraying means and is cleaned from the exhaust port at the end of the frame. Only the converted air is discharged.

Further, due to the back pressure of the air generated in the frame body, the air flows back into the dust collecting duct and tries to swirl at the inner peripheral portion thereof, but by the rectifying means provided in the dust collecting duct, While suppressing the flow, it is guided to the center of the dust collection duct and smoothly flows into the frame.

The water sprinkling means circulates the water by connecting an underwater pump to the water tank inside the frame, sucking up the water and sprinkling it into the water tank again.

By attaching a dust filter to the exhaust port provided at the end of the flow passage of the frame, even a small amount of dust remaining in the flow passage can be removed.

Further, as another example described above, the suction means provided in the dust collecting duct may be connected to the exhaust port, and the suction force of the suction means causes the dust from the dust generating source to flow through the dust collecting duct. As described above, the dust is removed by the air flow means and the water tank portion by being drawn into the frame via the frame, and the flow of air containing dust acts in the same manner as in the above example.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the dust collecting apparatus according to the present invention will be described below with reference to the drawings.

In FIGS. 1 to 2 and 6, reference numeral A denotes a dust collecting treatment device for grinding the surface of a material to be polished, for example, a stone c.
Dust generated during polishing is sucked and taken into water to be removed. As a first example, in FIGS. 1 and 2, a dust collection duct 1, a suction means 2, a frame 3, and a water tank. It is basically configured by the part 4, the air flow means 5, the water sprinkling means 6, and the exhaust port 7.

The dust collecting duct 1 is connected to the dust generating source b, and the main portion connected to the intake 8 of the dust generating source b has a cylindrical shape and one side has a trumpet shape. It is composed of a dust collecting member 9 and a mounting cylinder 10 of a suction means 2 which will be described later and is extended to the other side of the dust collecting member 9.

As shown in FIG. 1, the dust generating source b is dust generated from the material c to be polished by an operator's manual work, and as shown in FIG. A cover 12 such as a permeable sheet, such as a vinyl sheet, is stretched over the formed arch-shaped support frame 11. A stone material c is placed in this internal space and a predetermined grinding / polishing is performed with a tool or the like. Do the work.

The above-mentioned suction means 2 is mounted in the mounting cylinder 10 of the dust collection duct 1, sucks the dust in the dust generation source b and sends it into the frame 3, and uses a conventional electric fan. It is preferable that the suction force can be changed appropriately.

The above-mentioned frame 3 is for taking in and removing the dust in the dust generating source b, and the dust collecting duct 1 is provided on one side thereof.
The terminating end of the mounting cylinder 10 is connected to the mounting portion 3a, and the caster 13 is mounted on the lower part so as to be easily moved.

The above-mentioned water tank portion 4 is provided in the bottom portion of the frame body 3 so that a predetermined amount of water can be obtained, and the water tank portion 4 is dissolved in water from a drain port 14 provided at an appropriate lower portion of the frame body 3. The dust that has entered can be discharged by operating the valve 15.

The above-mentioned air flow means 5 is provided with an air guide wall 16 for guiding the dust from the dust collection duct 1 to the water tank portion 4 inside the frame 3.
And the detour wall 18 in which the air flow path 17 through which air meanders vertically is formed, and most of the dust is removed from the air taken in by the air flow means 5.

The air guide wall 16 and the detour wall 18 are erected so that the upper part thereof is inclined forward with respect to the air intake side to improve the efficiency of entry into the water tank portion 4. The predetermined air circulation gaps 19 and 19 are formed on the water surface and on the top of the frame 3.

The air guide wall 16 and the detour wall 18 may be used together.

The above-mentioned water sprinkling means 6 is provided in the upper part of the air flow path 17 in the air flow means 5 in the frame 3 so as to sprinkle the air passing through the air flow path 17 and bring it into contact with the dust in the air. Then, it is dropped into the water tank portion 4 below the frame body 3 to allow dust to penetrate into the water.

The water sprinkling means 6 may take in and inject from another water source and sequentially discharge the water supplied from the water tank portion 4, but it is preferable to circulate and use the water in the water tank portion 4. .

As this means, the submersible pump 21 with the water supply section 20 facing the water tank section 4 in the frame 3, the water supply pipe 23 having one end connected to the discharge section 22 of the submersible pump 21, and the water supply section 23 are provided. It is composed of a water spray nozzle 24 connected to the other end of the water pipe 23.

In addition, one or a plurality of the water spray nozzles 24 are provided in the water supply pipe 25 attached to the top of the frame body 3, and the water is evenly atomized to the entire flow passage 17. Alternatively, it is discharged in the form of a shower, and is provided at one place or at a plurality of places with respect to the airflow passage 17 that is bent in a zigzag shape.

Further, in this water sprinkling means 6, a jet pipe 33 is connected to the end of a water pipe 23 connected to the above-mentioned submersible pump 21 or another water source, and a large number of jet holes are provided below the jet pipe 33. By making a hole 34 and flowing water in a film form from the hole 34 toward the air guide wall 16 or the detour wall 18, the air containing dust flowing in the air flow passage 17 is introduced into the air guide wall. By touching 16 or the detour wall 18, the water penetrates into the water film and flows down and drops into the water tank portion 4. Since a wide contact area between the air and the water sprinkling means 6 is obtained, a dust removing effect is obtained.

The above-mentioned exhaust port 7 is provided at the end portion of the flow passage 17 in the frame body 3 and discharges only air from the dust sent from the dust collecting duct. If a multi-layer dust removal filter 27 made of filter paper or non-woven fabric is detachably attached to the support frame 26 that is rotatably attached to 7, the air discharged from the frame 3 to the outside air is cleaner. Becomes

In FIGS. 1 and 4, 28 is a rectifying means for smoothly feeding the air from the dust generating source b into the frame 3.

When the dust is taken in, the amount of air taken in by the suction means 2 and the airflow passage 1 in the airflow means 5
A back pressure of air is generated in the frame body 3 due to a difference from the amount of air passing through 7 (the flow path 17 has a smaller flow rate).

Therefore, this air flows back into the dust collecting duct 1, and a swirling flow occurs in the inner peripheral portion of the dust collecting member 9 in the dust collecting duct 1 as indicated by the symbol p in FIG.

This swirling flow p is guided to the central portion of the dust collecting duct 1 while suppressing the flow by the rectifying means 28, and the frame 3 is introduced.
To flow in smoothly.

In this structure, a vertical piece 29 extending toward the inner center is attached to the inner wall of the trumpet-shaped portion of the dust collecting member 9 of the dust collecting duct 1, and the outer end portion of the vertical piece 29 is attached. In addition, a face piece 30 is attached to close a part of the dust collecting member 9 on the inlet side.

Therefore, the swirling flow p hits the vertical piece 29 and its flow in the circumferential direction is restricted, and the swirling flow p tries to move toward the inlet side of the dust collecting member 9 as indicated by the symbol q in FIG. Since the flow changes toward the center of the dust collecting member 9 by hitting the surface piece 30, this air is sent into the frame 3 by the suction means 2.

In FIG. 3, reference numeral 31 is a shielding piece provided at the end of the air flow path 17 in the air flow means 5, which prevents water from splashing to the filter 27 by blowing up water generated by the flow of air.

Further, in FIG. 1, reference numeral 32 denotes a viewing window provided on a side portion of the frame body 3 for visually monitoring the dust removal state and the water tank section 4 contamination state.

As described above, in the dust collecting apparatus A according to the present invention, the support frame 11 is mounted on the polishing work section on which the stone c is placed.
The dust that is generated can be covered by standing upright and covering the cover 12, and the dust collecting source 1 is connected to the dust collecting duct 1 connected to one side of the frame 3 to collect the dust. When the suction means 2 in the duct 1 is actuated, the suction force by the suction means 2 acts on the dust generation source b, and the dust in the air generated from the polishing work unit is combined with the ambient air in the covering body 12. It is sucked and flows into the frame 3.

Then, the dust and air hit the first air guide wall 16 in the air flow means 5 downward, that is,
It is guided toward the water tank portion 4 in the frame body 3, and the dust that has touched the water surface is adsorbed by water and melted into the water tank 4.

On the other hand, the pressure-fed air moves along the water surface in the circulation gap 19 and further flows through the airflow passage 17 formed in a meandering shape by the air guide wall 16 and the detour wall 18. The dust-laden air reaching the water sprinkling means 6 in the middle of the air flow path 17 comes into contact with the water ejected from the water sprinkling nozzle 14 of the water sprinkling means 6 and falls into the water tank portion 4 together with the water, so that the dust becomes water. The air flows into the air passage 17 and bypasses the air passage 17.

Thus, while passing through the airflow passage 17 in the airflow means 5, the dust is brought into contact with the surface of the water or is infiltrated into the water tank 4 by watering with the water spraying means 6 and the end portion of the frame 3 Only the purified air is discharged from the exhaust port 7 at.

As a result, most of the dust does not dissolve in the water in the water tank 4 and scatter, and a new dust removal process can be performed simply by exchanging the water in the water tank 4.
No secondary pollution of dust after collection.

FIG. 6A shows a second example of the dust collecting apparatus in the embodiment of the present invention. The basic construction is as follows.
Same as the above-mentioned first example, except that the suction means 2 internally provided in the dust collection duct 1 is connected to the exhaust port 7,
By the suction force of the suction means 2, the dust of the dust generation source b is drawn into the frame 3 through the dust collection duct 1, and thus the dust is removed by the air flow means 5 and the water tank portion 4 as in the above-mentioned example. The flow of air containing dust has the same flow action as in the first example described above, and the same effect can be obtained.

Since each member operates in the same structure as that of the first example, detailed description is omitted, and the same reference numerals are given to the same members in the drawings.

Therefore, in the dust collecting duct 1 having the rectifying means 28 connected to the dust generating source b, only the trumpet-like dust collecting member 9 is connected to the mounting portion 3a of the frame 3 at one side thereof. Further, the suction means 2 is attached in series inside the case 36 to the outlet side of the exhaust port 7 provided with the dust filter 27.

In this example, the suction force of the dust by the suction means 2 is slightly lower than that of the device A of the first example, but the overall length of the machine can be further reduced.

[0055]

As described above, in the dust collecting apparatus of the present invention, the whole apparatus is formed in a small size, so that it can be easily transported to a dust removing location, and since dust is introduced into water, Dust does not scatter around when cleaning the device, and maintenance is greatly reduced.

Since the air intake means formed in a meandering shape allows the intake of dust air per unit as large as possible, it is possible to increase the intake of air from the dust generation source. It is possible to collect dust from a wide range. And so on.

[Brief description of drawings]

FIG. 1 is a front view of a dust collecting apparatus according to a first embodiment of the present invention in a dust collecting state.

FIG. 2 is a side view of FIG.

3 is a vertical cross-sectional front view showing the frame body in FIG. 1. FIG.

FIG. 4 is a side view of a perspective view showing a rectifying unit of the dust collection duct in FIG.

5 is a cross-sectional view of a main part showing another example of the water sprinkling means in FIG.

FIG. 6 is a front view in a dust collecting state showing a second embodiment of the dust collecting processing apparatus according to the present invention.

FIG. 7 is a vertical cross-sectional front view showing a conventional dust collector.

[Explanation of symbols]

 b Dust generation source 1 Dust collection duct 2 Suction means 3 Frame 4 Water tank part 5 Flow means 6 Sprinkling means 7 Exhaust port 21 Submersible pump 23 Water pipe 24 Water sprinkling nozzle 27 Dust filter 28 Rectifying means

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B01D 50/00 A

Claims (5)

[Claims] 1. A dust collection duct connected to a dust source,
Dust suction means installed in the dust collecting duct, a frame having one end thereof connected to the terminal end of the dust collecting duct, a water tank provided at the bottom of the frame, and dust collecting inside the frame. An air flow means comprising an air guide wall that guides the dust from the duct to the water tank and a detour wall in which a flow path through which air meanders is formed,
A dust collecting apparatus comprising: a water sprinkling means provided in an upper part of an air flow path of the air flow means in the frame body; and an exhaust port provided at a terminal end of the air flow path. 2. A dust collecting duct connected to a dust source,
A frame connecting the end of the dust collecting duct to one side of the frame, a water tank portion provided at the bottom of the frame body, and an air guide wall and air for guiding the dust from the dust collecting duct to the water tank in the frame body. Air flow means consisting of a bypass wall in which a flow path for meandering flow is formed, sprinkling means provided above the flow path in the flow means in the frame, and exhaust provided at the end of the flow path. A dust collecting apparatus comprising a port and suction means connected to the exhaust port to draw dust from a dust generating source into the frame. 3. The dust collecting apparatus according to claim 1, wherein a rectifying means is provided in the dust collecting duct. 4. The water sprinkling means includes a submersible pump having a water supply section facing a water tank section in a frame, a water supply tube having one end connected to a discharge section of the submersible pump, and the other end of the water supply tube. The dust collection processing apparatus according to claim 1 or 2, further comprising: 5. The dust collection processing apparatus according to claim 1, wherein a dust removal filter is attached to the exhaust port.