JP4810116B2 - Dust removal equipment - Google Patents

Description

The present invention provides plants and in the work site in a room at work occurred in the air dust (dust) powder dust are removed is removed the clean air is again dust removal equipment circulating the discharged in situ It belongs to the technical field.

Today, it is used in homes and offices, and is used as a dust removal device that collects and removes dust scattered in the air and discharges clean air without dust. There is known one that purifies the air through the air (see, for example, Patent Document 1). However, in this case, it is not preferable from the viewpoint of pollution to discard the collected water contaminated with dust as it is, and it is required to separate the water and dust for disposal.
Therefore, the applicant of the present invention installs a dust removing device in parallel at the work site, sucks air containing dust generated by the work, removes the dust in the sucked air with a filter, and removes the cleaned dust. There is provided a device in which air is supplied again to the work site so as to improve the work environment at the work site (see, for example, Patent Document 2). In this device, dust collected on the filter is struck down with a vibrating rod, and the struck dust is collected and discarded, thereby simplifying filter maintenance and extending the filter life.
JP-A-9-168714 JP-A-9-85574

In the above, the air flow path is formed by the wind generated by the suction fan (blower). However, the suction fan is disposed downstream of the filter so that dust does not adhere to the suction fan. In this case, when a flexible material such as cloth is used for the filter, the filter is bent in a concave shape on the downstream side of the flow path due to air resistance passing therethrough.
By the way, it is preferable to increase the filter area to achieve efficient dust removal. In this case, it is proposed to form the filter in a zigzag shape, but the filter is bent by receiving the air resistance. In this case, there is a problem that the filter surfaces on the side through which air has passed come into contact with each other and the dust removal effect is impaired. To avoid this, the gap between the filters is increased or the filter is reinforced with a frame such as a metal frame. However, in the case of the former, there is a problem that the apparatus becomes small and compact, and in the case of the latter, there is a problem that the reinforcement of the filter becomes troublesome and complicated. There is.

The present invention has been created in view of the above-described circumstances in order to solve these problems, and the invention of claim 1 includes a filter chamber provided with a filter, and air in the filter chamber. In a dust removing device configured by sequentially arranging a suction fan for suction from the upper side of an air flow path generated by the operation of the suction fan, the filter is a bag-shaped filter body having an opening on the suction fan side When the filter body is configured by filling the filter body with a flexible shape-retaining material having a high air passage rate , the filter has a plurality of filter bodies formed in a bag shape so that the upper side is open. They are connected in parallel at appropriate intervals, and have a flange extending horizontally at the upper peripheral edge, and are provided on the upper inner surface of the rectangular casing that forms the filter chamber. In addition, the lower end of the filter body is not supported by sandwiching the collar with the upper support piece that is detachably placed on the upper side of the lower support piece while the collar is placed on the lower support piece. Incorporated into the filter chamber in a suspended state at the free end, the filter chamber is arranged below the lower end of the filter body, and vibrates in a straight line by the rotational drive of the motor, between adjacent filter bodies and the outermost side. The lower end of the vibrating rod is opposed to the outer surface of the filter body, and the lower end of the vibrating rod is opposed to the outer surface of the filter body between adjacent filter bodies and the outermost filter body. provided vibrating rod so as to contact a dust removing equipment, characterized in that the lateral cylinder dropping swing dust adhering to the filter body is provided by the vibration of the vibrating rod.

According to the first aspect of the present invention, even if the filter receives a load in the direction in which the filter main body is crushed due to the air resistance to pass through, the bag state is maintained with almost no deformation. ing that it is good dust removal.

  Next, embodiments of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes a filter chamber of the dust removing device A. A casing 2 constituting the filter chamber 1 has a rectangular shape, and a pre-filter 4 is provided at a suction port 3a opened in the front plate 3. ing. The pre-filter 4 includes a metal filter 4a and a rectangular lattice frame 4b. The metal filter 4a is formed in a mat shape by intertwining fibrous wires made of a plurality of metals or the like formed in a curl shape, and the periphery is held by the lattice frame 4b. The lattice frame 4b has a shape corresponding to the suction port 3a and is set to be detachable from the suction port. A communication hole 5 a provided in the ceiling plate 5 of the casing 2 is connected in communication with a duct 6, and a suction fan 7 is disposed in the duct 6. Then, when the suction fan 7 is driven, air is sucked into the filter chamber 1 in the casing 2 through the prefilter 4, and the sucked air is discharged out of the apparatus from the discharge port 6 a provided at the front end of the duct 6. (See FIG. 2) An air flow path is formed. In the duct 6 of the present embodiment, the discharge port 6a is provided above the suction fan 7. However, the duct 6 may be set to extend forward (see the chain line portion in FIG. 2).

Reference numeral 8 denotes a main filter installed in the filter chamber 1, and the main filter 8 closes the bottom of a filter ground made of a filter cloth material for filtration (the mesh of the filter ground is adjusted by the dust particle size to be removed). A plurality of filter main bodies 8a formed in a bag shape so that the downstream side of the flow path (upper side in the drawing) is opened by forming a rectangular hollow shape (in this embodiment, one set of five bags as described later) Are connected in parallel (strips) at appropriate intervals, and as is clear from FIGS. 2 and 3, the free end drooping is not supported by anything. Configured to state . In the filter chamber 1, the dust-containing air sucked from the pre-filter 4 is removed by passing from the outside to the inside of the bag-like filter body 8 a, and the dust-removed air passes through the duct discharge port 6 a. It is discharged into the room as clean air and circulated.

9 is a shape retaining material for the filter main body 8a. The shape retaining material 9 is made of a highly elastic fiber that is curled and has a larger space ratio (void ratio) (90% or more) and air than the main filter 8. Main filter main body because it is flexible and has a shape retention function, and is formed into a non-woven fabric by three-dimensionally adhering randomly or entangled in a spongy form with a high passage rate Even if 8a receives the air resistance by the air suction of the suction fan 7, it is set so as not to be crushed. The shape retaining material 9 is formed in a rectangular shape corresponding to the filter main body 8a, and is inserted and incorporated into the filter main body 8a in a filling state, but the shape retaining material 9 is incorporated into the filter main body 8a. The setting is made by inserting the shape-retaining material 9 from the opening on the downstream side of the flow path of the filter body 8a and bringing it into contact with the bottom of the filter body 8a. Therefore, positioning when the shape retaining material 9 is inserted into the filter main body 8a can be easily performed.
The shape retaining member 9 is inserted and incorporated in the bag of the filter body 8a, that is, on the air passage side of the main filter 8. Incidentally, as the shape-retaining material, it is preferable that the shape-retaining material has high elasticity in order to enhance the shape-retaining function, and examples thereof include synthetic fibers such as nylon fibers and polyvinylidene chloride fibers. Natural fibers such as can also be used.

  The main filter 8 is formed as a set of five filter main bodies 8a. A flange (ear part, flange part) extending in the horizontal direction is formed on the peripheral part on the opening 8b side of the filter main body 8a. ) 8c. The main filter 8 is an upper support piece 10 that is detachably provided on the upper side of the lower support piece 2a in a state where the flange portion 8c is placed on the lower support piece 2a provided on the inner surface of the casing 2. It is designed to be incorporated by pinching. Incidentally, in the present embodiment, the lower support piece 2 a and the upper support piece 10 are set to be tightened by the clamp 11.

1 4 is a vibrating rod, the said vibrating rod 1 4, clear cylinder 14a is provided so as Figures 2 and 3, have been arranged on the sides of the filter body 8a and between the outermost filter body 8a be those shake off dust adhering to the main filter 8 by the vibration operation Te, for example, a vibrating rod 1 4 vibrator 1 3 connected is, converts the rotational driving of the motor 13a into a linear movement by a crank mechanism 13b The dust that has been allowed to vibrate and that has been shaken off is dropped and collected in a collecting case 15 provided at the lower end of the casing 2. The vibrating rod 14 is set to vibrate for a certain period of time (for example, 20 to 30 seconds) when the operation of the suction fan 7 is stopped due to work stoppage or the like. Further, the dust shaken off from the main filter 8 by the vibration operation floats inside the case body 2, but the dust floating in the direction of passing through the prefilter 4 toward the indoor side 4 is prevented from being received by the inner surface side portion, and does not leak into the room through the prefilter 4, and a special shutter mechanism and a shutter opening / closing mechanism can be omitted by using the prefilter 4. This contributes to improved function durability and cost reduction.

In the present embodiment configured as described above, the dust-containing air is sucked into the filter chamber 1 from the pre-filter 4 by the suction operation of the suction fan 7, and the dust removed by the main filter 8 is returned to the room again. However, since the main filter 8 is filled with the shape-retaining material 9 inside the bag-shaped filter main body 8a, the main filter 8 receives the air resistance passing through the main filter 8 and receives the filter main body. Even if a load in the direction in which 8a is crushed is received, the bag state is maintained with almost no deformation. As a result, there is no problem even if the main filter 8 has a small gap S between adjacent filter bodies 8a, and efficient dust removal can be performed.
Further, the shape retaining material 9 has flexibility, and vibrations are amplified by bending following the vibration operation by the vibrating body 14, so that the dust removal of the main filter 8 can be performed efficiently.

It is a perspective view of a dust removal apparatus. It is a partial cross section side view of a dust removal apparatus. (A), (B), (C) is a partial front sectional view of the main part of the dust removing device, respectively, XX sectional view of FIG. 3 (A), and a partial detail view of FIG. .

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Filter chamber 2 Casing 2a Lower side support piece 4 Pre filter 6 Duct 6a Exhaust port 7 Suction fan 8 Main filter 8a Filter body 8c Eave part 9 Shape holding material 10 Upper support piece 1 4 Vibration rod
14a Cylinder A Dust removal device

Claims (1)

In a dust removing device configured by sequentially arranging a filter chamber provided with a filter and a suction fan for sucking air into the filter chamber from the upper side of an air flow path generated by the operation of the suction fan , the filter, the suction fan side provided with a bag-shaped filter body having an opening, in configuring filled with shape-retaining material having a high flexibility air passage rate in the filter body, the filter is an upper A plurality of the filter main bodies formed in a bag shape so as to be opened are connected in parallel with an appropriate interval, and the upper peripheral edge portion is configured with a flange portion extending horizontally, The collar part is clamped by the upper support piece detachably placed on the upper side of the lower support piece in a state where the collar part is placed on the lower support piece provided on the upper inner surface of the rectangular casing constituting the filter chamber. By the way The filter main body is incorporated in the filter chamber in a free-end hanging state where the lower end portion is not supported, and is arranged in the filter chamber below the lower end of the filter main body and vibrates linearly by receiving the rotational drive of the motor. A vibrating bar having a lower end connected to the vibrating body in a state facing the vibrating body and between the adjacent filter bodies and the outer surface of the outermost filter body, and between the adjacent filter bodies and outside of the outermost filter body. It is provided on the vibrating rod so as to face the side surface and abut on the side surface of the filter main body, and is provided with a horizontal cylinder that shakes off dust adhering to the filter main body due to vibration of the vibrating rod. dust removal equipment to.

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