JP2001276652A - Dust collector cleaning brush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust collector cleaning brush capable of keeping sufficient cleaning effect without causing clogging by the accumulation of the particles such as dust to the brush and also capable of increasing the service life of the brush and an electrode surface by reducing the load at the tip of the brush and easy in washing. SOLUTION: The dust collector cleaning brush 8 which rotates while abutting on an inner wall surface and a dust collecting surface of the dust collector and sweeps the dust sticking on the inner wall surface and the dust collecting surface, has a rotary shaft 10 arranged in parallel to the inner wall surface and the dust collecting surface, the first ciliary material 13 flocked at a long fiber flocked part 11 formed at a column surface of the rotary shaft 10 and the second ciliary material 14 flocked at a short fiber flocked part 12 formed adjacent to the long flocking part 11 and shorter than the first linear wool material 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush for cleaning a dust collecting device for sweeping dust adhered to a wall surface inside a dust collecting device or a surface such as an electrode surface of an electric dust collector.

[0002]

2. Description of the Related Art Conventionally, in a dust collecting device such as an electric dust collector, air containing dust or the like is introduced into a dust collecting chamber, and a dust collecting surface (electrode surface) of a high-voltage electrode plate disposed in the dust collecting chamber. After adhering dust to the dust, a rotating cleaning brush is applied to the dust collecting surface to remove the adhering dust from the dust collector. For example, the following technology is known as a cleaning brush for cleaning such a dust collecting surface. (1) Japanese Utility Model Application Laid-Open No. 60-34363 (hereinafter referred to as “A”) discloses a pair of wire brushes (cleaning brushes) that are in contact with both surfaces of a dust collecting surface while maintaining a predetermined contact pressure.
Rotation means for rotating the wire brush by a driving device installed outside the dust collection chamber, manual means for moving the wire brush in the vertical direction, and a non-conductive cover surrounding the discharge electrode side of the wire brush. Cleaning means for dust collectors have been proposed. (2) Japanese Patent Application Laid-Open No. 58-139751 (hereinafter referred to as "B") discloses a driving and driven wheel disposed above and below an electrode surface of an electrostatic precipitator, and a chain belt stretched between the upper and lower wheels. And a dust collector having a cleaning brush connected to the chain belt. (3) Japanese Patent Application Laid-Open No. 5-508489 (hereinafter referred to as "C") discloses a scraper in which the tip swings on the electrode surface when cleaning the electrode surface on which toner particles adhere in an electrophotographic copying machine or the like. A technique is disclosed in which the tip of the scraper is pressed against the electrode surface via a cleaning brush to remove particles attached to the electrode surface.

[0003]

However, the conventional brush for cleaning a dust collector has the following problems. That is, (1) In the technique using the cleaning brush described in Japanese Patent Application Laid-Open Nos. A to C, there is a problem that particles such as dust are accumulated between the rotating brushes and are clogged, so that a sufficient cleaning effect cannot be exerted. was there. (2) Since an excessive load is applied to the tip of the brush, it is likely to bend due to plastic deformation, and once such plastic deformation occurs, the cleaning effect is significantly reduced and the life of the brush itself is shortened. There was a problem of becoming. (3) In the case where the apparatus is washed using water or the like, there is a problem that it is difficult to remove dust adhering to the brush. (4) In the technique of performing cleaning by driving the cleaning brush up and down described in Japanese Patent Application Laid-Open Publication No. H8-150, there is a problem that the entire area must be large because the range of movement of the cleaning brush is large. . (5) In the technique described in Japanese Patent Application Laid-Open Publication No. H08-27139, since the tip of the scraper is pressed against the electrode surface, there is a problem that the electrode surface is easily damaged.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and maintains a sufficient cleaning effect without causing particles such as dust to accumulate in a brush and clogging, and reduces a load on a brush tip to reduce the brush. Further, an object of the present invention is to provide a cleaning brush for a dust collecting device, which can increase the life of an electrode surface, is easy to clean, and can have a compact device configuration.

[0005]

In order to achieve the above object, the present invention has the following arrangement. The invention according to claim 1 rotates in contact with the inner wall surface or the dust collecting surface of the dust collecting device,
A cleaning brush for a dust collection device that sweeps down dust adhered to the inner wall surface and the dust collecting surface, wherein a rotating shaft disposed parallel to the dust collecting surface and the inner wall surface, and a cylindrical surface of the rotating shaft. A first bristle material planted in the formed long flocking portion, and a second bristle planted in the short flocking portion formed adjacent to the long flocking portion and shorter than the first bristle material And a material. As a result, the following operation is obtained. (A) Since it has a long flocked portion and a short flocked portion in which two types of long and short lengths of fili material are planted, particles such as dust swept off at the tip of the fili material have a length of two short and long. These particles are once trapped in the space formed by the step of the type of wire material and the dust collecting surface, and when the tip comes off from the dust collecting surface with the rotation, these particles are swept out. A good cleaning effect can be maintained without clogging. (B) Since the first bristle material planted in the long flocking portion has a step formed by the surrounding second bristle material, even if the tip contacts the dust collecting surface, No excessive load is applied. Also, when this tip rotates and separates from the dust collection surface, it will be in a free state without being constrained from the surroundings,
The bent front end is elastically restored to the original state immediately, and it is possible to effectively suppress a reduction in the life of the front end portion due to the occurrence of a bending habit. (C) In the case where the dust collecting surface such as the electrode surface and the inner wall surface are washed together with water or the like, the dust collecting surface, the tip of the bristle material in contact with the dust collecting surface and the short bristle adjacent thereto Since a space is formed between the material and the material, it is possible to improve drainage and improve a cleaning effect. (D) Since the amount of the bristle material used can be reduced as compared with the case where the conventional cleaning brush having no step is used, the cleaning brush of the dust collecting device can be manufactured at low cost. (E) When the cleaning brush is rotated, the contact area with the dust collecting surface or the like is reduced, so that the frictional resistance can be reduced, the energy cost can be reduced, and economical operation can be performed.

Here, the rotating shaft has an outer diameter of 50 to 100.
mm, preferably 55 to 65 mm, and a length of 300 to 20
A metal pipe or solid rod of 00 mm, preferably 500 to 800 mm, having a long and short 2
The bristle material of different lengths has alternately long flocked portions and short flocked portions on which flock is planted. The rotating shaft is pressed against the electrode surface at a predetermined interval in parallel with the electrode surface (dust collection surface) of the electric precipitator or under a predetermined pressure, and is rotated by a driving device including a motor or the like. I have. The bristle material of two types of length, short and long, has a thickness of 0.01 to 1.5.
mm, preferably 0.1 to 0.8 mm, the longer one being 40 to 90 mm and the shorter one being 15 to 50 mm. As the thickness becomes thinner than 0.1 mm, the bristle materials tend to be entangled with each other, and the durability tends to decrease. Conversely, as the thickness exceeds 0.8 mm, depending on the material,
The fibrous material becomes too hard and tends to damage the electrode plate. These tendencies become more remarkable when the thickness becomes smaller than 0.01 mm or exceeds 1.5 mm. This wire material includes SUS316L having a relatively low carbon content.
Wires and fibrous materials manufactured using stainless steel, steel, other non-ferrous alloys, synthetic resins, and the like as materials can be used. In particular, it is preferable to use low-carbon low-carbon steel as the bristle material, since the flexibility at the tip of the brush increases and the life can be extended. In addition, the material and thickness of the two types of bristle material can be made different as necessary, so that the magnitude of the frictional resistance when the tip of the flock material contacts the electrode surface and rotates. In addition, the efficiency of scraping dust particles can be adjusted.

[0007] The long flocking portion and the short flocking portion alternately provided on the surface of the rotating shaft alternately have a predetermined angle, for example, an angle range of 1 to 15 degrees on the circumference thereof when viewed from the axial direction of the rotating shaft. Each unit is formed in the above manner, but the unit may be divided into a predetermined length along the axial length of the rotating shaft, and the long flocking portions and the short flocking portions may be alternately arranged. In addition, the long flocking portion and the short flocking portion do not need to be arranged in a rectangular shape on the surface of the rotating shaft, and may be spirally arranged so as to wind a tape around a cylindrical surface. By adjusting these arrangements, the dust particle removal efficiency and the degree of clogging can be balanced. For example, if you want to increase the efficiency of removing dust particles, increase the ratio of the long flocked portion to the entire area, and if you want to prevent clogging, make adjustments such as increasing the ratio of short flocked portions. Thus, a desired effect can be exhibited.

According to a second aspect of the present invention, there is provided the cleaning brush for the dust collecting apparatus according to the first aspect, wherein the length (H) of the first bristle material is used.
And the ratio (H / L) of the length and the length (L) of the second bristle material,
It is configured to be 1.2 to 2.5. Thereby, the following operation is obtained in addition to the operation of the first aspect. (A) Since a step of a predetermined length can be formed on the boundary between the long flocking portion and the short flocking portion, a space is formed between the step and a dust collecting surface such as an electrode surface, and a space is formed between the step and the electrode surface. A predetermined amount of dust particles can be captured in the contact direction, and can be discharged when rotated to the opposite side of the electrode surface, so that the overall cleaning efficiency can be further improved. (B) Since a predetermined space is secured around the tip of the first bristle material group planted in the long flocking portion, the tip of the bent bristle material in contact with the electrode surface rotates the rotating shaft. When released from the electrode surface, it can easily return to the original straight state, prevent the deformation habit from remaining, and increase the durability of the wire material and maintain its life. Here, the ratio of the length (H) of the first bristle material to the length (L) of the second bristle material (H /
When L) is less than 1.2, it is difficult to secure a sufficient space for capturing dust particles. Conversely, the ratio (H /
When L) exceeds 2.5, the first bristle material is
It is difficult to effectively support the first bristle material, and the bristle materials become entangled with each other, which significantly reduces the durability of the first bristle material.

According to a third aspect of the present invention, there is provided a cleaning brush for a dust collecting apparatus according to the first or second aspect, wherein the first bristle material and the second bristle material are respectively planted, and the long flocking portion. The short flocking portion has an elongated band-shaped region adjacent to each other, and the band-shaped region is formed so as to be spirally wound around the cylindrical surface of the rotating shaft. Thereby, the following operation is obtained in addition to the operation of the first or second aspect. That is, (a) the dust particles swept down at the tip of the fibrous material move in the axial direction of the rotating shaft along the spirally formed step, and are efficiently removed from the end side of the rotating shaft. can do. Thus, it is possible to prevent dust from adhering to the flock material and causing clogging, and to constantly maintain good dust removal efficiency. (B) The life at the flock material and the electrode plate can be increased by effectively reducing the load at the tip of the flock material. (C) Since the water drainage flow path is formed around the spiral step portion and the flocked portion, the flow of water is improved, and the efficiency is improved when performing wet dust collection processing and cleaning the apparatus. be able to.

According to a fourth aspect of the present invention, in the cleaning brush for a dust collecting apparatus according to the third aspect, a plurality of the band-shaped regions are independently formed in a spiral shape on the cylindrical surface of the rotating shaft, and the plurality of band-shaped regions are mutually fixed. They are arranged with an interval. Thereby, the following operation is obtained in addition to the operation of the third aspect. (A) Depending on the type and amount of dust to be removed, the flock density of the bristle material formed on the cylindrical surface of the rotating shaft can be increased, and as a result, the flocked material adheres to the dust collection surface and the inner wall of the dust collector. The dust can be swept away and efficiently removed from one end of the rotating shaft. (B) Since the plurality of belt-shaped regions are formed at a predetermined interval from each other, that is, wound around a cylindrical surface serving as a rotation axis with a predetermined phase difference, a spiral drain flow path is formed. It is effectively formed between the band-shaped regions, and the dust collection treatment by wet method and the cleaning efficiency of the apparatus can be improved. (C) When the material, thickness, etc. of each of the fibrous materials arranged in the plurality of band-shaped regions are changed, various types of materials, such as those having a sticky property from a hard and stubborn substance attached to the electrode plate surface, are used. The dust in the form can be sequentially swept down with the bristle materials having different elasticity and hardness, and the cleaning efficiency by the brush can be further improved.

According to a fifth aspect of the present invention, in the cleaning brush for a dust collecting apparatus according to the first or second aspect, the long flocking portion and the short flocking portion are staggered from each other on the cylindrical surface of the rotating shaft. It is arranged and configured. Thereby, claim 1 or 2
The following operation is obtained in addition to the operation described above. (A) Since a space can be secured around the distal end side of the first bristle material group implanted in the long implanted portion, a flow path of water can be formed at a portion where the electrode surface and the distal end come into contact with each other, so that cleaning can be performed. It is possible to improve the efficiency of washing by improving drainage at the time and the like. (B) The contact resistance with the electrode surface can be reduced, the driving energy can be reduced, and the dust collector can be economically operated.

According to a sixth aspect of the present invention, there is provided a cleaning brush for a dust collecting apparatus according to any one of the first to fifth aspects.
And the material of the second bristle material is different from each other. Thereby, the following operation is obtained in addition to the operation of any one of the first to fifth aspects. In other words, depending on the size, type, amount, etc. of the dust particles to be applied, the contact resistance between the wire material and the electrode surface can be adjusted, and the dust removal efficiency can be adjusted. The cleaning brush of the dust collecting device can be efficiently driven.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a schematic configuration diagram of an electric dust collector to which a cleaning brush of a dust collector according to Embodiment 1 of the present invention is applied. In FIG. 1, reference numeral 1 denotes an electric precipitator which is an example of a dust collector, 2 denotes an elongated rectangular electrode plate on which a dust collecting surface is arranged in parallel to a flow of gas containing dust, and 3 denotes a large number of electrode plates 2.
Pair of left and right ring chains to which both ends of
Is located at the top of the ring chain 3
A pair of sprockets for moving the
Is a pair of rollers disposed at the lower part of the ring chain 3 for reversing the ring chain 3 from below to above, 6 is an electrode plate driving device for rotating the sprocket 4 via the roller chain 6a, 7 Is a vertically elongated discharge plate fixedly disposed at an intermediate position of the electrode plate 2 driven from top to bottom and from bottom to top by the ring chain 3, respectively.
Reference numeral 8 denotes a pair of cleaning brushes whose front ends contact the front and back surfaces of the electrode plate 2 and are opposed to each other. Reference numeral 9 denotes a brush rotating device for rotating the cleaning brush 8 via a roller chain 9a.

The electric precipitator 1 is a cotrel-type dust collector that introduces air containing dust and the like, and adsorbs and removes the contained dust particles on the dust collecting surface of the charged electrode plate 2.
The electrode plate 2 has a width of 200 to 500 mm and a length of 600 to 1
It is formed of a rectangular stainless steel plate such as SUS304 having a thickness of 0000 mm (preferably 8000 to 9000 mm) and a thickness of 0.3 to 1.5 mm. Four sides of the rectangular shape of the electrode plate 2 are provided with a reinforcing frame, and at both ends in the longitudinal direction of the frame, there are hooking members called jackles, and through the jackles, Both ends of the electrode plate 2 are hooked on a pair of left and right synchronized ring chains 3 to move the electrode plate 2.
Are movably supported up and down. The ring chains 3 arranged in pairs at a predetermined interval are electrically connected to a static electricity generator (not shown). A predetermined high voltage is applied to the connected electrode plate 2. The discharge plate 7 is a vertically long plate-like electrode which is charged to a potential opposite to that of the electrode plate 2 and is fixedly arranged at an intermediate position of the electrode plate 2 which moves up and down. The electric precipitator 1 has a ring chain 3, a sprocket 4, a roller 5, and a discharge plate 7 that support both ends of the electrode plate 2 as one unit, and a plurality of these units are arranged in parallel as shown in FIG. It is configured.

FIG. 2A is a side sectional view of a cleaning brush of the dust collecting apparatus according to the first embodiment, and FIG. 2B is a sectional view of a rotating shaft of the cleaning brush of the dust collecting apparatus according to the first embodiment. It is a front view.
2, reference numeral 10 denotes a rotating shaft of the cleaning brush 8 arranged in parallel to the front and back surfaces of the electrode plate 2, 11 denotes a long flocking portion having a band-shaped spiral region formed on a cylindrical surface of the rotating shaft 10, 12
Is a short flocking portion having a band-shaped spiral region formed adjacent to the long flocking portion 11;
(Hereinafter referred to as a long bristle material), 14 is a long bristle material 13
It is a second bristle material of a shorter length (hereinafter referred to as a short bristle material). In this embodiment, the rotating shaft 10 has an outer diameter of 60.5 m.
m, formed of a stainless steel pipe having a length of 8500 to 9000 mm, and formed on its outer surface a strip-shaped long flocking portion 11 and a short flocking portion 12 made of two types of long and short bristle materials. As shown in FIG. 2B, three series of band-shaped helical regions composed of a set of the long flocking portion 11 and the short flocking portion 12
It is arranged so as to be helical with respect to its axis on a cylindrical surface of zero. That is, these three series of band-shaped spiral regions are arranged on the cylindrical surface of the rotating shaft 10 with a predetermined interval therebetween,
The width of the region is set in an angle range of 1 to 10 degrees with respect to the axis of the rotating shaft 10, and three independent systems are set at an angle of 120 degrees when viewed from the axial direction.
It should be noted that such a band-shaped helical region can be made into two series or an independent series having a number in the range of 4 to 10. Further, the long flocking portion 11 and the short flocking portion 12 may be enlarged and spread without gaps without providing a space without a flocking portion between the adjacent lines.

Here, FIG. 3A is a detailed sectional view of a cleaning brush of the dust collecting apparatus according to the first embodiment, and FIG. 3B is an explanatory view showing a use state thereof. In FIG. 3, 15
Reference numeral 16 denotes a channel material for sandwiching and fixing the base ends of the long wire material 13 and the short wire material 14, and 16 denotes a bundle of a large number of brush wires having a fixed length as a whole, and the bundles are respectively designated as predetermined. It is a core wire for folding back to form a long bristle material 13 and a short bristle material 14 in length and fixing it to the channel material 15. In this case, a long flocked portion 11 and a short flocked portion 12 that respectively hold the base ends of the long wire material 13 and the short wire material 14 are formed at the channel material 15. The channel material 15 is made of a galvanized steel material or a steel band such as stainless steel. The both sides of the steel band are bent, and the folded portion of the brush wire is housed and sandwiched in the recess. The lower portion of the steel strip is fixed to the rotating shaft 10 by welding, riveting, bolting, or the like. The core wire 16 is made of a stainless steel wire such as SUS304 or the like, so that the folded base of the brush wire is easily fitted into the recess of the steel strip, and even if an external force acts on each bristle material, the core wire 16 can be easily removed from the recess of the steel strip. I am trying not to fall out.

The brush wire is made of SUS having a thickness of about 0.2 mm.
In this embodiment, the length of the portion forming the long flocked material 13 is about 59 mm, and the short flocked material 14 is approximately half the length of the long flocked material 13 in this embodiment. It is formed with. As shown in FIG. 3 (a), the cleaning brush 8 whose tip side is largely bent by a reinforcing projection or the like attached to the dust collecting plate is not limited to the case where the brush wire is bent and fixed with the channel material 15. Even if the base end of the wire is inserted into the insertion hole formed in the rotating shaft 10 and fixed, one point becomes a fulcrum, and bending and extension are repeated, causing metal fatigue. In order to prevent this, a short bristle material that does not hit the dust collector is provided on the back side of the long bristle material, this force is received by the entire short bristle material on the back side, and the force is prevented from being concentrated at one place Bending stress can be dispersed as a whole, and metal fatigue can be suppressed. Also, when forming the flocking material on the rotating shaft 10,
The base end portion of the flocked material is fixed by welding, bonding, or the like, or a band-shaped substrate on which the flocked material is planted is wound around the rotating shaft 10 and is then wrapped using an adhesive or welding. This can be done by fixing. In addition, the rotating shaft 10
A flocked material of the same length is implanted in advance on the surface of the above, and the tip of the flocked material in a region to be the short flocked portion 12 is cut to a predetermined length using a cutter or the like to form the short flocked material 14. You may make it do.

A method of using the cleaning brush 8 of the dust collecting apparatus having the above configuration will be described. When the electrostatic precipitator 1 is in operation, the electrode plate 2 is turned on using an electrostatic generator (not shown).
Then, the discharge plate 7 is charged to a predetermined voltage. Then, each sprocket 4 is rotated by the electrode plate driving device 6,
The ring chain 3 hung on both ends of the electrode plate 2 and supported is moved vertically from top to bottom and from bottom to top. Thus, the dust in the air introduced into the electrostatic precipitator 1 is adsorbed on the front and back surfaces of the charged electrode plate 2, and the electrode plate 2 having the dust attached to both surfaces moves downward. Below, the brush rotation device 9
The pair of left and right cleaning brushes 8 that are rotated by this contact the two surfaces of the electrode plate 2 to sweep out the dust adsorbed on the dust collecting surface of the electrode plate 2.

Since the cleaning brush of the dust collecting apparatus according to the first embodiment is configured as described above, it has the following operation. (A) When the tip of the long flocked material 13 rotates while contacting the surface of the electrode plate 2, the step formed by the long flocked material 13 and the short flocked material 14 having a short length adjacent thereto is reduced. Dust particles can be captured in the vicinity. When the rotating shaft 10 further rotates and the tip of the long flocking material 13 separates from the electrode plate 2, the tip returns elastically to its original state, and at this time, dust particles are effectively shaken off. be able to. (B) The dust particles move in the direction of the axis of the rotary shaft 10 along the spirally formed step, and can be efficiently removed from one end of the rotary shaft 10. As a result, it is possible to more reliably prevent dust from adhering to the flocked material and causing clogging, and to constantly maintain good dust removal efficiency. (C) The life of the flock material and the electrode plate 2 can be increased by reducing the load at the tip of the flock material. (D) Since a spiral step is formed, a water flow path is formed, and the cleaning brush 8 and the inside of the electric dust collector can be easily cleaned. (E) The cleaning brush 8 of the channel brush type presses the brush wire with the core wire 16 and sandwiches the brush wire with the channel material 15, so that the brush wire can be prevented from coming off or breaking, and can be used for a long time (6 months or more). Can withstand. (F) The long bristle material receives the force applied to the long bristle material by the whole short bristle material on the back side, prevents the force from being concentrated at one place, disperses the bending stress as a whole, and reduces metal fatigue. Can be suppressed.

(Embodiment 2) FIG. 4A is a side sectional view of a cleaning brush of a dust collector according to Embodiment 2.
(B) is a front view of the rotating shaft of the cleaning brush of the dust collector according to Embodiment 2. In FIG. 4, reference numeral 8a denotes the second embodiment.
, A rotating shaft of the cleaning brush 8a arranged in parallel to the front and back surfaces of the electrode plate 2, a long flocking portion 21 formed on the cylindrical surface of the rotating shaft 20, and a long flocking portion 21. A short bristle portion formed adjacently, 23 is a first bristle material (hereinafter referred to as a long bristle material) planted in the long bristle portion 21, 24 is a second bristle having a shorter length than the long bristle material 23 (Hereinafter referred to as short wire material). In the following description, components having the same functions and configurations as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. The cleaning brush 8a of the dust collector of the second embodiment differs from that of the first embodiment in that the pattern of the long flocking portion 21 and the short flocking portion 22 formed on the surface of the rotating shaft 20 is different from that of the first embodiment. 1 and the long wire material 23 and the short wire material 24 to be used.
In that the thickness and / or the material of each are different. The rotating shaft 20 is a stainless steel pipe,
On its outer surface, a pair of long and short bristle planting portions 21 and 22 in which two types of long and short bristle materials are planted, respectively, and substantially rectangular regions forming a pair are parallel to each other in the axial direction at predetermined intervals. Are located in The long flocked material 23 is a bristle made of stainless steel having a length of about 59 mm and a thickness of about 0.3 mm, and the short flocked material 24 is about 約 of the length of the long flocked material 23 and has a thickness of about 0.1.
It is made of metal bristles having less rigidity than the long flocked material 23 having a thickness of about 0.2 mm.

Since the cleaning brush of the second embodiment is configured as described above, it has the following operation. (A) Since the rectangular regions forming the pair of the long flocking portion 21 and the short flocking portion 22 are arranged parallel to the axial direction, the first embodiment is used.
As compared with the case of (1), the meristine can be easily mechanized, and the manufacturing cost can be reduced. (B) By making the material and thickness of the long flocked material 23 and the short flocked material 24 different from each other, dust removal characteristics at the time of using the cleaning brush 8a, ease of deformation habit of the tip of the flocked portion,
It is possible to adjust the degree of wear of the electrode plate 2 due to the contact of the flocking portion, the magnitude of the rotational resistance of the cleaning brush 8a, and the like. As a result, the dust collector can be operated in a more economical state.

(Embodiment 3) FIG. 5A is a side sectional view of a cleaning brush of a dust collecting apparatus according to Embodiment 3 of the present invention.
(B) is a front view of the rotating shaft of the cleaning brush of the dust collector of the third embodiment. In FIG. 5, reference numeral 8b denotes the third embodiment.
Cleaning brush, 30 is a rotating shaft of the cleaning brush 8b disposed parallel to the front and back surfaces of the electrode plate 2, 31 is a long flocking portion formed on the cylindrical surface of the rotating shaft 30, and 32 is a long flocking portion 31. A short bristle portion formed adjacently, 33 is a first bristle material (hereinafter referred to as a long bristle material) planted in the long bristle portion 31, and 34 is a second bristle having a length approximately 2/3 of the long bristle material 33. (Hereinafter referred to as a short bristle material). In the following description, components having the same functions and configurations as those of the first and second embodiments are denoted by the same reference numerals, and description thereof is omitted. The cleaning brush 8b of the dust collector of the third embodiment differs from the first and second embodiments in that the pattern of the long flocking portion 31 and the short flocking portion 32 formed on the surface of the rotating shaft 30 is staggered. The point is that it is formed in a lattice-like pattern. That is, the rectangular long flocking portion 31 and the short flocking portion 32 in the third embodiment.
Are alternately arranged on the outer surface of the rotating shaft 30 so as to form a staggered lattice.

Since the cleaning brush 8b of the third embodiment is configured as described above, it has the following operation.
(A) Since a space can be secured around the entire tip end side of the first bristle material group implanted in the long implanted portion, a drainage path through which water flows can be formed at a portion where the electrode surface and the end contact. In addition, it is possible to improve the drainage of water at the time of cleaning, etc., and to increase the cleaning efficiency. Further, the dust can be temporarily held in a portion of this space or the like, and the dust can be released from the space opened when the tip of the wire material is detached from the electric pole surface. (B) The contact resistance with the electrode surface can be reduced, the driving energy can be reduced, and the dust collector can be economically operated.

[0024]

As described above, according to the present invention, the following excellent effects can be obtained.

According to the first aspect of the present invention, the following effects can be obtained. (A) Since there are a long flocked portion and a short flocked portion in which a filiform material of two different lengths is planted, particles such as dust swept off at the tip of the filiform material have two types of long and short types. These particles are once caught in the space formed by the step of the bristle material and the electrode surface and come off from the electrode surface with rotation, so that these particles are swept out, so that they can be cleaned without causing clogging due to adhesion of the particles. The effect can be favorably maintained. (B) Since the first bristle material planted in the long flocking portion has a step formed by the surrounding second bristle material, even if the tip comes into contact with the electrode surface, No excessive load is applied. In addition, when the tip rotates and separates from the electrode surface, the tip is in a free state without being restrained from the surroundings. The reduction in the life of the distal end portion due to the occurrence of the occurrence can be effectively suppressed. (C) In the case where the electrode surface is washed using water or the like, a space is formed between the electrode surface, the tip of the bristle material in contact with the electrode surface, and the short bristle material adjacent thereto. In addition, the drainage can be improved, and the cleaning effect can be improved. (D) Since the amount of the used bristle material can be reduced as compared with the conventional case, the cleaning brush of the dust collecting device can be manufactured at low cost. (E) Energy cost can be reduced by reducing frictional resistance when rotating the cleaning brush, thereby enabling economical operation.

According to the second aspect of the present invention, the following effects can be obtained in addition to the effects of the first aspect. (A) Since a step having a predetermined length can be formed on the boundary between the long flocking portion and the short flocking portion, a predetermined amount of dust particles is captured by the step in a direction in which the electrode surface comes in contact with the electrode surface. Dust particles can be discharged on the opposite side, and the overall cleaning efficiency can be further improved. (B) Since a predetermined space is secured around the tip of the first bristle material group planted in the long flocking portion, the tip of the bent bristle material in contact with the electrode surface rotates the rotating shaft. When released from the electrode surface, it can easily return to the original straight state, prevent the deformation habit from remaining, and increase the durability of the wire material and maintain its life.

According to the third aspect of the present invention, the following effects can be obtained in addition to the effects of the first or second aspect. That is, (a) the dust particles swept down at the tip of the fibrous material move in the axial direction of the rotating shaft along the spirally formed step, and are efficiently removed from the end side of the rotating shaft. be able to. Thus, it is possible to prevent dust from adhering to the flock material and causing clogging, and to constantly maintain good dust removal efficiency. (B) The life at the flock material and the electrode plate can be increased by effectively reducing the load at the tip of the flock material. (C) Since the drainage flow path of water is formed at the spiral step, the cleaning brush and the inside of the electric dust collector can be easily cleaned.

According to the fourth aspect of the present invention, the following effects can be obtained in addition to the effects of the third aspect. (A) Depending on the type and amount of dust to be removed, the flock density of the bristle material formed on the cylindrical surface of the rotating shaft can be increased, and as a result, the flocked material adheres to the dust collection surface and the inner wall of the dust collector. The dust can be swept away and efficiently removed from one end of the rotating shaft. (B) Since the plurality of belt-shaped regions are formed at a predetermined interval from each other, that is, wound around a cylindrical surface serving as a rotation axis with a predetermined phase difference, a spiral drain flow path is formed. It is effectively formed between the band-shaped regions, and the dust collection treatment by wet method and the cleaning efficiency of the apparatus can be improved. (C) When the material, thickness, etc. of each of the fibrous materials arranged in the plurality of band-shaped regions are changed, various types of materials, such as those having a sticky property from a hard and stubborn substance attached to the electrode plate surface, are used. The dust in the form can be sequentially swept down with the bristle materials having different elasticity and hardness, and the cleaning efficiency by the brush can be further improved.

According to the fifth aspect of the present invention, the following effects can be obtained in addition to the effects of the first or second aspect. (A) Since a space can be secured around the distal end side of the first bristle material group implanted in the long implanted portion, a flow path of water can be formed at a portion where the electrode surface and the distal end come into contact with each other, so that cleaning can be performed. It is possible to improve the efficiency of washing by improving drainage at the time and the like. (B) The contact resistance with the electrode surface can be reduced, the driving energy can be reduced, and the dust collector can be economically operated.

According to the sixth aspect of the present invention, the following effects can be obtained in addition to the effects of any one of the first to fifth aspects. In other words, depending on the size, type, amount, etc. of the dust particles to be applied, the contact resistance between the wire material and the electrode surface can be adjusted, and the dust removal efficiency can be adjusted. The cleaning brush of the dust collecting device can be efficiently driven.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an electric precipitator to which a cleaning brush according to a first embodiment of the present invention is applied.

FIG. 2A is a side sectional view of a cleaning brush of the dust collection device according to the first embodiment. FIG. 2B is a front view of a rotating shaft of the cleaning brush of the dust collection device according to the first embodiment.

FIG. 3A is a detailed cross-sectional view of a cleaning brush of the dust collecting apparatus according to the first embodiment; FIG.

FIG. 4A is a side cross-sectional view of a cleaning brush of a dust collector according to the second embodiment. FIG. 4B is a front view of a rotating shaft of the cleaning brush of the dust collector according to the second embodiment.

5A is a side cross-sectional view of a cleaning brush of a dust collection device according to a third embodiment. FIG. 5B is a front view of a rotating shaft of the cleaning brush of the dust collection device according to the third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric precipitator 2 Electrode plate 3 Ring chain 4 Sprocket 5 Roller 6 Electrode plate drive 6a Roller chain 7 Discharge plate 8 Cleaning brush 8a Cleaning brush 8b Cleaning brush 9 Brush rotating device 9a Roller chain 10 Rotating shaft 11 Long flocking portion REFERENCE SIGNS LIST 12 short flocking portion 13 long bristle material 14 short bristle material 15 channel material 16 core wire 20 rotation axis 21 long flocking portion 22 short flocking portion 23 long bristle material 24 short bristle material 30 rotation shaft 31 long flocking portion 32 short flocking portion 33 long bristle Lumber 34 Short hair material

Claims (6)

[Claims] 1. A cleaning brush for a dust collecting device, which rotates while being in contact with an inner wall surface or a dust collecting surface of a dust collecting device and sweeps off dust attached to the inner wall surface or the dust collecting surface, wherein A rotating shaft arranged in parallel to the surface or the inner wall surface, a first bristle material implanted in a long flocking portion formed on a cylindrical surface of the rotating shaft, and formed adjacent to the long flocking portion. And a second bristle material shorter than the first bristle material, the cleaning brush being used for cleaning a dust collecting device. 2. A length (H) of said first bristle material and a length of said second bristle material.
The ratio (H / L) to the length (L) of the bristle material is 1.2 to
The cleaning brush according to claim 1, wherein the cleaning brush is 2.5. 3. The long bristle planting portion and the short bristle planting portion where the first bristle material and the second bristle material are respectively planted have a band-shaped region adjacent to each other, and the band-shaped region is the rotating member. The cleaning brush for a dust collector according to claim 1, wherein the cleaning brush is formed so as to be spirally wound around a cylindrical surface of the shaft. 4. The apparatus according to claim 3, wherein a plurality of said band-shaped regions are independently formed spirally on a cylindrical surface of said rotary shaft, and said plurality of band-shaped regions are arranged at a predetermined interval from each other.
A brush for cleaning a dust collecting device according to item 1. 5. The method according to claim 1, wherein the long flocking portion and the short flocking portion are arranged in a staggered pattern on the cylindrical surface of the rotating shaft. A cleaning brush for the dust collector according to the above. 6. The dust collector according to claim 1, wherein the first bristle material and the second bristle material are made of different materials. Cleaning brush.