JP7270326B1 - Paint mist collector - Google Patents

Abstract

A grid structure formed by a plurality of horizontal plates having a plurality of elongated openings and a plurality of vertical plates having a plurality of elongated openings is accommodated in a box having an entrance and an exit and formed within the lattice structure. To provide a paint mist collecting device in which a large amount of paint mist does not accumulate on the upstream part of a curved air passage. SOLUTION: A plurality of first horizontal plates in which a plurality of elongated openings are formed in parallel and a plurality of second horizontal plates in which a plurality of elongated openings are formed in parallel are alternately arranged to form a horizontal plate assembly. In the horizontal plate assembly, the portion between the adjacent elongated openings of the second horizontal plate faces the elongated opening of the first horizontal plate, and the elongated opening of the second horizontal plate faces the portion between the adjacent elongated openings of the first horizontal plate. and a plurality of openings sandwiched between the plurality of elongated openings of the first horizontal plate are additionally formed in the first horizontal plate facing the entrance opening, and additionally formed with the plurality of elongated openings of the first horizontal plate. The plurality of openings and the peripheral residual portions of the plurality of elongated openings adjacent to the first horizontal plate of the vertical plate form a baffle group consisting of a plurality of columnar baffles distributed in a row. [Selection drawing] Fig. 1

Description

The present invention relates to a paint mist collector installed in a paint booth.

A plurality of elongated openings extending in parallel with each other at predetermined intervals and a plurality of slits extending from the peripheral edge to the middle of the longitudinal extension length of the elongated openings with the respective elongated openings sandwiched therebetween are formed. A plurality of first horizontal plates, a plurality of elongated openings extending in parallel with each other at predetermined intervals, and a plurality of elongated openings extending from the periphery to the middle of the longitudinal extension of the elongated openings with the respective elongated openings interposed therebetween. a plurality of second horizontal plates having a plurality of slits formed thereon; a plurality of elongated openings extending in parallel with each other at predetermined intervals; and a plurality of vertical plates formed with a plurality of slits extending halfway through the length, and the first horizontal plates and the second horizontal plates are alternately arranged with a gap therebetween to form a horizontal plate assembly. in the transverse plate assembly, the portions between the adjacent elongated openings of the second transverse plate face the elongated openings of the first transverse plate, and the elongated openings of the second transverse plate face the adjacent elongated openings of the first transverse plate. A plurality of vertical plates are disposed with gaps therebetween to form a vertical plate assembly, and the vertical plate assembly aligns its own slits with the slits of the horizontal plate assembly to form horizontal plates As shown in FIG. 9, the horizontal plate assembly A and the vertical plate assembly B cooperate to form a lattice structure C, and the curved air passage D is formed in the lattice structure C. an inlet opening facing the first horizontal plate forming one end face of the horizontal plate assembly and an outlet opening facing the first horizontal plate or the second horizontal plate forming the other end surface of the horizontal plate assembly; Patent document 1 discloses a paint mist collecting device characterized by containing the grid structure in a box formed with a .
The paint mist collecting device of Patent Document 1 does not require driving power for the circulating water pump. It has the advantage that it is not necessary to bend the plate member in a complicated manner as in the dry paint mist collection device disclosed in Patent Document 3.

Japanese Patent No. 6723677 Japanese Patent No. 3193511 Japanese Patent No. 6475241

If the paint mist collecting device is arranged so that the paint booth exhaust flows from one end face of the horizontal plate assembly to the other end face, as can be inferred from FIG. A large amount of paint mist is collected in the upstream portion of the curved air passage formed by the plate assembly B, and the amount of collected mist decreases as it goes downstream. Since the collected paint mist accumulates in the space between the adjacent first horizontal plate and the second horizontal plate, it is trapped in the space between the first horizontal plate and the adjacent second horizontal plate forming the upstream portion of the air passage. A large amount of paint mist accumulates, the pressure loss in the air passage increases, the air velocity in the air passage decreases, and the paint mist collecting efficiency may decrease.
In the present invention, a plurality of elongated openings extending in parallel at predetermined intervals and a plurality of slits extending from the periphery to the middle of the longitudinal extension length of the elongated openings sandwiching each of the elongated openings. A plurality of first horizontal plates formed, a plurality of elongated openings extending in parallel with each other at predetermined intervals, and a peripheral edge with each of the elongated openings sandwiched therebetween to partway along the length of the elongated openings in the longitudinal direction. a plurality of second horizontal plates each formed with a plurality of extending slits; a plurality of elongated openings extending in parallel with each other at predetermined intervals; and a plurality of vertical plates formed with a plurality of slits extending halfway along the longitudinal extension, wherein the first horizontal plates and the second horizontal plates are alternately arranged with a gap between them. in the transverse plate assembly the portions between adjacent elongated openings in the second transverse plate face the elongated openings in the first transverse plate and the elongated openings in the second transverse plate adjoin the first transverse plate; A plurality of vertical plates are disposed with gaps between them to form a vertical plate assembly, and the vertical plate assembly aligns its slits with the slits of the horizontal plate assembly. The horizontal plate assembly and the vertical plate assembly cooperate to form a lattice structure, a curved air passage is formed in the lattice structure, and one side of the horizontal plate assembly The lattice structure in a box having an inlet opening facing a first horizontal plate forming an end surface and an outlet opening facing either the first horizontal plate or the second horizontal plate forming the other end surface of the horizontal plate assembly. A large amount of paint mist is collected in the space between the first horizontal plate forming the upstream part of the curved air passage and the adjacent second horizontal plate. It is an object of the present invention to provide a paint mist collection device that suppresses the occurrence of a situation in which the paint mist collecting efficiency is lowered due to the increase in pressure loss in an air passage due to accumulation of the mist.

In order to solve the above-mentioned problems, in the present invention, a plurality of elongated openings extending in parallel with each other at predetermined intervals and the longitudinal extension length of the elongated openings from the periphery with the respective elongated openings sandwiched therebetween are provided. a plurality of first horizontal plates formed with a plurality of slits extending halfway; a plurality of elongated openings extending in parallel with each other at predetermined intervals; a plurality of second horizontal plates formed with a plurality of slits extending halfway along the longitudinal extension of the openings; a plurality of elongated openings extending in parallel with each other at predetermined intervals; a plurality of vertical plates formed with a plurality of slits extending from the peripheral edge to the middle of the longitudinal extension length of the elongated opening, the first horizontal plate and the second horizontal plate having a gap between them; alternately spaced apart to form a transverse plate assembly in which the portions between the adjacent elongated openings of the second transverse plate face the elongated openings of the first transverse plate and the second transverse plate; The elongated opening of the first horizontal plate faces the portion between the adjacent elongated openings, and a plurality of vertical plates are arranged with a gap to form a vertical plate assembly, and the vertical plate assembly has its own slit are aligned with the slits of the horizontal plate assembly and inserted into the horizontal plate assembly, the horizontal plate assembly and the vertical plate assembly cooperate to form a lattice structure, and bent air passages are formed in the lattice structure. A plurality of openings sandwiched between the plurality of elongated openings of the first horizontal plate are additionally formed in the first horizontal plate forming one end surface of the horizontal plate assembly, and the plurality of openings of the first horizontal plate are formed. The elongated opening, the additionally formed openings, and the peripheral remaining portions of the plurality of elongated openings adjacent to the first horizontal plate of the vertical plate form a baffle plate group consisting of a plurality of columnar baffle plates distributed in a row. forming an inlet opening facing the first lateral plate forming said one end face of the lateral plate assembly and an outlet aperture opposing the first lateral plate or the second lateral plate forming the other end face of the lateral plate assembly. Provided is a paint mist collecting device characterized in that the lattice structure is accommodated in a box formed with a .
A plurality of elongated openings in a first horizontal plate facing the inlet opening, a plurality of additionally formed openings, and a peripheral residual portion of a plurality of elongated openings adjacent to said first horizontal plate of the longitudinal plate are distributed in a line. A baffle plate group consisting of a plurality of columnar baffle plates collects part of the paint mist in the exhaust air, and the concentration of the paint mist in the exhaust gas flowing into the curved air passage downstream decreases. The possibility of a large amount of paint mist accumulating in the upstream portion of the passage and reducing paint mist collection efficiency is reduced. The coating booth exhaust gas travels approximately straight through the baffle plate group, and the columnar baffle plates that form the baffle plate group have a small surface area facing the exhaust flow. do not.
kiruso, shi, cucumber

In a preferred aspect of the present invention, each of the plurality of openings sandwiched between the plurality of elongated openings of the first horizontal plate is an opening group consisting of a plurality of openings.
By making each of the plurality of openings sandwiched between the plurality of elongated openings of the first horizontal plate not a single elongated opening but an opening group composed of a plurality of openings, the strength of the first horizontal plate is increased and at the same time The surface area of the columnar baffle plate is increased, and the ability of the baffle plate group to collect paint mist is improved.
In a preferred embodiment of the present invention, a plurality of openings sandwiching the plurality of elongated openings of the second horizontal plate are additionally formed in the second horizontal plate adjacent to the first horizontal plate forming one end face of the horizontal plate assembly. and the plurality of elongated openings of the second horizontal plate, the additionally formed plurality of openings, and the peripheral residual portions of the elongated openings of the vertical plate adjacent to the second horizontal plate are arranged in a row to form a plurality of columnar shapes. A baffle group of baffles is formed.
A plurality of columns distributed in a row formed by the elongated openings in the first horizontal plate facing the inlet opening, the additionally formed openings and the peripheral residual portions of the elongated openings of the longitudinal plates adjacent to said first horizontal plate. In the baffle plate group consisting of baffle plates, if the concentration of paint mist in the exhaust gas flowing into the curved downstream air passage is not sufficiently reduced and a large amount of paint mist accumulates in the upstream portion of the curved downstream air passage, , a second horizontal plate adjacent to the first horizontal plate has a plurality of openings sandwiching the elongated openings of the second horizontal plate, and a plurality of columnar baffle plates distributed in a row. It is desirable to form a second row of baffle plates. Since the baffle plate group is arranged in two rows, the concentration of paint mist in the exhaust gas flowing into the curved air passage downstream is further reduced, and a large amount of paint mist accumulates in the upstream portion of the curved air passage to collect the paint mist. Decreased potential for inefficiency. The coating booth exhaust gas travels substantially straight through the baffle plate group, and the columnar baffle plates that form the baffle plate group have a small surface area facing the exhaust flow, and the baffle plate groups are arranged in a distributed manner, so two rows of baffle plate groups are formed. does not clog. In a preferred embodiment of the present invention, each of the plurality of openings sandwiching the plurality of elongated openings of the second horizontal plate is an opening group consisting of a plurality of openings.
By making each of the plurality of openings sandwiching the plurality of elongated openings of the second horizontal plate not a single elongated opening but an opening group composed of a plurality of openings, the strength of the second horizontal plate is increased and the columnar shape is formed. By increasing the surface area of the baffle plate, the ability of the baffle plate group in the second row to collect paint mist is improved.

In a preferred aspect of the present invention, the interval between the first horizontal plate forming the one end face of the horizontal plate assembly and the adjacent second horizontal plate is wider than the average interval between the horizontal plates in the horizontal plate assembly.
In a preferred aspect of the present invention, the second horizontal plate adjacent to the first horizontal plate forming the one end face of the horizontal plate assembly and the first horizontal plate adjacent to the second horizontal plate on the downstream side of the air passage The spacing is greater than the average spacing of the lateral plates in the lateral plate assembly.
In a preferred aspect of the present invention, the distance between the first lateral plate and the second lateral plate decreases from one end face to the other end face of the lateral plate assembly.
When the paint mist collecting device is arranged so that the exhaust gas from the coating booth flows from the one end surface of the horizontal plate assembly toward the other end surface, the curved plate formed by the horizontal plate assembly and the vertical plate assembly A large amount of paint mist is collected in the upstream portion of the air passage, and the amount of mist collected decreases as it goes downstream. Since the collected paint mist accumulates in the space between the adjacent first horizontal plate and the second horizontal plate, the first horizontal plate forming the one end face of the horizontal plate assembly and the adjacent second horizontal plate is wider than the average interval of the horizontal plates in the horizontal plate assembly, or in addition, the second horizontal plate adjacent to the first horizontal plate forming the one end face of the horizontal plate assembly and the downstream side of the air passage The interval between the first horizontal plates adjacent to the second horizontal plate is made wider than the average interval between the horizontal plates in the horizontal plate assembly, or the interval between the first horizontal plate and the second horizontal plate is increased in the horizontal plate assembly It is reasonable to decrease from one end face to the other end face of the .
In a preferred embodiment of the invention, a filter is disposed within the box and adjacent to the other end face of the cross plate assembly.
By arranging the filter in addition to the grid structure, the paint mist collection efficiency is improved.
In a preferred embodiment of the present invention, the vertical plate assembly has a first portion inserted into the horizontal plate assembly from one end side of the elongated opening of the horizontal plate, and a horizontal plate assembly from the other end side of the elongated opening of the horizontal plate. and a second part that is inserted into the plate assembly.
The vertical plate assembly has a first portion inserted into the horizontal plate assembly from one end side of the elongated opening of the horizontal plate and a second portion inserted into the horizontal plate assembly from the other end side of the elongated opening of the horizontal plate. By dividing into two parts, the sliding resistance at the time of insertion is reduced, and the work of assembling the lattice structure is facilitated.
In a preferred embodiment of the present invention, the grid structure formed by the joint formation of the horizontal plate assembly and the vertical plate assembly is foldable.
Since the lattice structure in which the vertical plate assembly is inserted into the horizontal plate assembly has no fixing portion such as adhesion, it can be easily folded and can be easily restored to a three-dimensional structure from the folded state. Folding facilitates transportation of the paint mist trap.

In a preferred embodiment of the invention, the first horizontal plate, the second horizontal plate, the vertical plate and the box are made of paperboard.
A paint mist collection device made of paperboard such as cardboard, cardboard, corrugated paper, etc. is light and can be easily transported and disposed of after use.
In a preferred embodiment of the present invention, the surfaces of the horizontal plates directed to the entrance opening, both surfaces of the vertical plates, and the inner surface of the box are subjected to a surface treatment for enhancing paint mist collection efficiency. As a result, paint mist collection efficiency is improved. Examples of the surface treatment include treatment to increase adsorption power by attaching a low internal density sheet, application of anti-slip paint, and treatment to increase surface roughness by roughening.

In a preferred embodiment of the present invention, an inlet opening is formed in a wall surface of the box facing the one end surface of the horizontal plate assembly, and an outlet opening is formed in a wall surface of the box facing the other end surface of the horizontal plate assembly. is formed.
When the paint mist collecting device is arranged in the straight portion of the paint booth exhaust path, it is rational to form the entrance opening and the exit opening on the walls of the box facing each other.
In a preferred embodiment of the present invention, an inlet opening is formed in a wall surface of the box facing the lattice shape of the lattice structure, and an outlet opening is formed in a wall surface of the box facing the other end face of the horizontal plate assembly. ing.
When the paint mist collection device is installed in the curved part of the painting booth exhaust route, the paint mist collection device having an entrance opening and an exit opening formed on the walls facing each other of the box body shall be installed in the paint booth exhaust passage. Since it is difficult to provide the desired function by arranging it in the bent portion, the entrance opening is formed in the wall surface of the box facing the lattice shape of the lattice structure, and the entrance opening is formed in the other end face of the horizontal plate assembly. An exit opening is preferably formed in the wall of the opposing box.

1 is an external perspective view of a coating mist removing device according to an embodiment of the present invention; FIG. (a) shows a grid structure and (b) shows a box. 1 is a front view of a first lateral plate provided in a coating mist removing device according to an embodiment of the present invention; FIG. (a) is a front view of two of the three first horizontal plates, and (b) is a front view of one of the three first horizontal plates. FIG. 4 is a front view of a second horizontal plate included in the coating mist removing device according to the embodiment of the present invention; (a) is a front view of two of the three second horizontal plates, and (b) is a front view of one of the three second horizontal plates. 1 is a front view of a vertical plate included in a coating mist removing device according to an embodiment of the present invention; FIG. (a) is a front view of a first portion and a second portion, and (b) is a front view of a vertical plate formed by the first portion and the second portion. FIG. 4 is a top view of the lattice structure showing the folding process; (a) shows the initial state of the folding process, and (b) shows the final state of the folding process. FIG. 4 is an external perspective view of a plate-shaped filter arranged adjacent to a horizontal plate assembly; FIG. 4 is a diagram showing a cross section of a lattice structure provided in the coating mist removing device according to the embodiment of the present invention and a flow of exhaust gas in a bent air passage; FIG. 5 is an external perspective view of a coating mist removing device according to another embodiment of the present invention; (a) shows a grid structure and (b) shows a box. FIG. 4 is a diagram showing a cross section of a lattice structure provided in the coating mist removing device of Patent Document 1 and a flow of exhaust gas in a curved air passage.

As shown in FIG. 1, a dry paint mist collecting device 1 according to an embodiment of the present invention includes two first horizontal plates 2a, one first horizontal plate 2a', and two second horizontal plates 2a'. A lattice structure 4 made up of a horizontal plate 2b, a second horizontal plate 2b', and eight vertical plates 3, and an inlet opening 5a is formed on one of a pair of opposite side surfaces and an outlet on the other side. and a box body 5 having an opening 5b. The lattice structure 4 is accommodated in the box 5 to form the paint mist collecting device 1 .

As shown _in FIG. 2(a), the first horizontal plate 2a has four elongated openings _2a1 extending in parallel with each other at predetermined intervals, and an elongated opening _2a1 with each elongated opening 2a1 interposed therebetween. Cardboard, thick paper, corrugated paper, etc., in which a plurality of slits _2a2 extending from the peripheral edge of one longitudinal end side and the peripheral edge of the other longitudinal end side to the middle of the longitudinal extension length of the elongated opening _2a1 are formed rectangular paperboard.
As shown in FIG. 2(b), in addition to the configuration of the first horizontal plate 2a, the first horizontal plate 2a' has four elongated openings _2a1 extending parallel to each other at predetermined intervals. , three additional aperture groups 2a ₁ ′ are formed. Each aperture group 2a ₁ ′ is formed by four apertures.

As shown in FIG. 3(a), the second horizontal plate 2b has three elongated openings _2b1 extending in parallel with each other at predetermined intervals, and an elongated opening _2b1 with each elongated opening _2b1 interposed therebetween. Cardboard, thick paper, corrugated paper, etc., in which a plurality of slits _2b2 extending from the peripheral edge of one longitudinal end side and the peripheral edge of the other longitudinal end side to the middle of the longitudinal extension length of the elongated opening _2b1 are formed rectangular paperboard.
As shown in FIG. 3(b), in addition to the configuration of the second horizontal plate 2b, the second horizontal plate 2b' has three elongated openings _2b1 extending parallel to each other at predetermined intervals. Two additional aperture groups 2b ₁ ′ are formed. Each aperture group 2b ₁ ′ is formed by four apertures.

As can be seen from FIG. 1, the first horizontal plates 2a, 2a' and the second horizontal plates 2b, 2b' are alternately arranged with a gap therebetween to form a horizontal plate assembly 2'.
One end surface of the horizontal plate assembly 2' is formed by a first horizontal plate 2a', and a second horizontal plate 2b' is arranged adjacent to the first horizontal plate 2a'. The other end surface of the horizontal plate assembly 2' is formed by the second horizontal plate 2b.
As can be seen from FIGS. 1(a), 2(a), (b) and 3(a), (b), within the lateral plate assembly 2', the elongated opening 2a of the first lateral plate 2a' ₁ faces the group of openings 2b ₁ ' of the adjacent second lateral plate 2b' and the additional group of openings 2a ₁ ' faces the elongated aperture 2b ₁ of the adjacent second lateral plate 2b'. The elongated opening 2a1 of the first horizontal plate _2a faces the portion between the adjacent elongated openings 2b1 of the adjacent second horizontal plate _2b , and the portion between the adjacent elongated openings _2a1 of the first horizontal plate 2a. The portion faces the elongated opening _2b1 of the adjacent second lateral plate 2b.
When the openings 2a ₁ and 2b ₁ are viewed from the front, the slits 2a ₂ and 2b ₂ overlap.

As shown in FIG. 4(a), the vertical plate 3 has five elongated openings _3a1 extending in parallel with each other at predetermined intervals, and a longitudinal direction of the elongated openings _3a1 with each elongated opening _3a1 interposed therebetween. A first portion 3a made of a rectangular paperboard such as cardboard, cardboard, corrugated paper, etc., which is formed with a plurality of slits _3a2 extending from the peripheral edge on the one direction end side to the middle of the longitudinal extension length of the elongated opening _3a1 . , five elongated openings _3b1 extending in parallel with each other at predetermined intervals, and the longitudinal direction of the elongated openings _3b1 from the peripheral edge of one longitudinal end of the elongated openings _3b1 with each of the elongated openings _3b1 interposed therebetween. It is composed of a second portion 3b formed of a rectangular paperboard such as cardboard, thick paper, corrugated paper, etc., in which a plurality of slits _3b2 extending halfway along the extension length are formed. The first portion 3a and the second portion 3b are formed in a symmetrical shape. As shown in FIGS. 1 and 4(b), the first portion 3a and the second portion 3b form the vertical plate 3 with their peripheral edges on the one end side in contact with each other.
As can be seen from FIG. 1, the first portions 3a of the eight vertical plates 3 are spaced apart to form a first vertical plate assembly 3', and the second portions 3b of the eight vertical plates 3 are arranged with a gap therebetween. are arranged with a gap therebetween to form a second vertical plate assembly 3''.

As shown in FIG. 1, the first vertical plate assembly 3′ aligns its slits 3a ₂ with the slits 2a 2 , 2b ₂ of the horizontal plate assembly 2′ to extend the elongated openings _{2a 1 ,} 2b ₁ in the longitudinal direction. The second vertical plate assembly 3 ″ aligns its own slits 3 b ₂ with the slits 2 _{a 2} and 2 b ₂ of the horizontal plate assembly 2 ′ to form an elongated opening. 2a ₁ and 2b ₁ are inserted into the horizontal plate assembly 2' from the peripheral edge on the other longitudinal end side, and the horizontal plate assembly 2', the first vertical plate assembly 3' and the second vertical plate assembly 3'' are inserted into the horizontal plate assembly 2'. are composed of a first horizontal plate 2a', two first horizontal plates 2a, a second horizontal plate 2b', two second horizontal plates 2b, and eight vertical plates 3. , forming a lattice structure 4 which has a uniform shape.
As shown in FIG. 7, in the lattice structure 4, the first horizontal plate 2a, the second horizontal plate 2b, the gaps between the vertical plates 3a, 3b and the openings 2a ₁ , 2b ₁ , 3a ₁ , 3b ₁ . An air passage D is formed. Further, the elongated openings of the first horizontal plate 2a' and the second horizontal plate 2b', the additional opening group, and the elongated openings adjacent to the first horizontal plate 2a' and the second horizontal plate 2b' of the vertical plates 3a and 3b The remaining portion forms two rows of baffle plate groups 7a and 7b each made up of a plurality of columnar baffle plates with cross sections distributed in a row.
The lattice structure 4 is housed in a box 5 made of cardboard such as cardboard, heavy cardboard, corrugated cardboard, etc. to constitute the paint mist collecting device 1 . The entrance opening 5a formed in one of the side surfaces facing each other of the box body 5 faces the elongated opening _2a1 and the opening group _2a1 ' of the lattice structure 4, and the exit opening 5b formed in the other side faces the elongated opening. You are facing 2b ₁ .

The operation and effects of the paint mist collecting device 1 will be described.
Exhaust air from a painting booth (not shown) flows into the box 5 through the inlet opening 5a, forms an exhaust flow indicated by the white arrow in FIG. As indicated by the arrows in FIG. 7, the exhaust flow is formed by the first horizontal plate 2a' and the remaining portions of the vertical plates 3a and 3b around the openings, and is distributed in a row and formed by a plurality of columnar baffle plates. a baffle plate group 7a, a second row of baffle plate group 7b comprising a plurality of columnar baffle plates distributed in a row formed by the remaining portions of the second horizontal plate 2b′ and the vertical plates 3a and 3b around the opening; through the curved air passages formed by the first horizontal plate 2a, the second horizontal plate 2b, the gaps between the vertical plates 3a, 3b and the openings 2a ₁ , 2b ₁ , 3a ₁ , 3b ₁ and the outlet opening 5b It flows out of the box 5 through .
When the exhaust flow passes through the two rows of baffle plate groups 7a and 7b, the exhaust gas from the coating booth collides with the baffle plate groups, causing paint mist to adhere, and part of the paint mist in the exhaust gas is collected. be. Next, when the exhaust flow passes through the bent air passage D, the part sandwiched between the openings 2a 1 and 2b 1 of the horizontal plates _2a and 2b and the openings 3a ₁ and _{3b 1 of} the vertical plates 3a and 3b Exhaust air from the painting booth collides with the part where the paint mist is trapped, and the paint mist adheres to the part, and the remaining part of the paint mist in the exhaust gas is collected. Exhaust air from the painting booth from which the paint mist has been removed is discharged from the paint mist collecting device 1. - 特許庁
In the paint mist collecting device 1, horizontal plates 2a, 2a', 2b, 2b' in which openings 2a ₁ , 2b ₁ , opening groups 2a ₁ ', 2b ₁ ', and slits 2a ₂ , 2b ₂ are formed, Vertical plates 3a, 3b having openings 3a ₁ , 3b ₁ and slits 3a ₂ , 3b ₂ formed thereon are aligned with each other and inserted into the vertical plates 3a, 3b. It is configured.
Since the paint booth exhaust passes through the curved air passage D, the number of collisions between the paint booth exhaust and the horizontal plates 2a, 2b and the vertical plates 3a, 3b increases, and the paint mist collection efficiency is improved.
The coating booth exhaust from which a part of the paint mist, especially the paint mist with a large particle size, has been removed by the two rows of baffle plate groups 7a and 7b flows into the curved air passage D, so that it is upstream of the curved air passage D. A large amount of paint mist does not accumulate in the part, and a large pressure loss does not occur. On the other hand, the coating booth exhaust gas travels substantially straight through the baffle plate group. Since the baffle plate group is wide, a large amount of paint mist does not accumulate on the baffle plate group and a large pressure loss does not occur.
Since the openings 2a ₁ , 2b _{1 ,} 3a ₁ , 3b ₁ are elongated openings, the configuration of the horizontal plates 2a, 2b and the vertical plates 3a, 3b is simplified compared to the case where a plurality of small openings are aligned. , the air resistance of the curved air passage D is reduced and the mist collection efficiency is improved.
Since the openings additionally formed in the first horizontal plate 2a' and the second horizontal plate 2b' are grouped with a plurality of openings 2a ₁ ' and 2b ₁ ', the additionally formed openings are regarded as a single elongated opening. The strength of the first horizontal plate 2a' and the second horizontal plate 2b' is increased, and the surface area of the columnar baffle plate is increased, so that the baffle plate group has an increased ability to collect paint mist.

As shown in FIG. 1, the spacing between the first horizontal plates 2a, 2a' and the second horizontal plates 2b, 2b' is more specifically defined from one end face to the other end face of the horizontal plate assembly 2'. , decreases from the upstream side to the downstream side with respect to the flow of the paint booth exhaust indicated by the white arrow in FIG. When the paint mist collecting device 1 is arranged so that the paint booth exhaust gas flows from the one end surface of the horizontal plate assembly 2' toward the other end surface, the air passage formed in the lattice structure 4 is upstream of the air passage. A large amount of paint mist is collected at the bottom, and the amount of mist collected decreases as it goes downstream. Since the collected paint mist accumulates in the space between the adjacent first and second horizontal plates, the interval between the horizontal plates should be decreased from one end face to the other end face of the horizontal plate assembly 2'. is reasonable.
A vertical plate assembly formed of eight vertical plates 3 is passed from one end side of the elongated openings 2a ₁ and 2b ₁ and opening groups 2a _{1 ′} and 2b ₁ ′ of the horizontal plates to the horizontal plate assembly 2 ′. A first portion 3' to be inserted and a second portion to be inserted into the horizontal plate aggregate 2' from the other end side of the elongated openings 2a ₁ and 2b ₁ of the horizontal plates and the group of openings 2a ₁ ' and 2b ₁ '. Since it is divided into 3″, the sliding resistance at the time of insertion is reduced, and the work of assembling the four lattice structures is facilitated.
Since the lattice structure 4 in which the vertical plate assembly composed of the first portion 3' and the second portion 3'' is inserted into the horizontal plate assembly 2' does not have a fixing portion such as an adhesive, ) and (b), it can be easily folded and can be easily restored to its three-dimensional structure from the folded state.By folding the lattice structure 4 and the box body 5, the paint mist collecting device 1 facilitates the transportation of
The paint mist collecting device 1 made of cardboard such as cardboard, cardboard, corrugated cardboard, etc. is light and therefore easy to transport and easy to dispose of after use.
A suitable plate-like filter 6, as shown in FIG. 6, is disposed within the box 5 and adjacent the lateral plate 2b forming the downstream end of the lateral plate assembly 2' with respect to the paint booth exhaust flow. You can
By disposing the filter 6 in addition to the grid structure, the paint mist collection efficiency is improved.

The surfaces of the first horizontal plates 2a, 2a' and the second horizontal plates 2b, 2b' facing the entrance opening 5a, both sides of the vertical plate 3, and the inner surface of the box body 5 are coated with non-woven fabric, cotton paper, or the like. Adsorptive force increasing treatment by attaching a low internal density sheet, or surface roughness increasing treatment such as application of anti-slip paint or roughening treatment may be performed. Improves paint mist collection efficiency.
If the concentration of paint mist in the exhaust air from the coating booth is relatively low and the baffle plate group can be made smaller than in the above embodiment, the second horizontal plate 2b' can be replaced by the second horizontal plate 2b. The group of baffle plates may be arranged in a row.
When the paint mist collection device is arranged in the straight portion of the painting booth exhaust path, as shown in FIG. Be reasonable.
When the paint mist collecting device is arranged in the curved part of the painting booth exhaust route, the paint mist collecting device having an inlet opening and an outlet opening formed in the walls facing each other of the box body 5 is installed in the painting booth exhaust route. Since it is difficult to provide the desired function by arranging it in the bent portion of the grid structure 4, as shown in FIG. is desirable. In this case, the extension 3c formed on the vertical plate 3 is extended to the wall facing the wall on which the outlet opening 5b is formed, the lattice structure 4 is positioned within the box body 5, and the entrance opening 5a is extended to the extension 3c. will be confronted with
Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. For example, the number and aspect ratio of the horizontal plates and vertical plates constituting the grid structure 4, the shape of the elongated apertures 2a ₁ and 2b ₁ , and the shape and number of the plurality of apertures forming the aperture groups 2a ₁ ′ and 2b ₁ ′ are , are not limited to those of the above embodiments. The aperture groups 2a ₁ ', 2b ₁ ' may be single elongated apertures.
In the above embodiment, the first horizontal plates 2a, 2a', the second horizontal plates 2b, 2b' is decreased from one end surface of the horizontal plate assembly 2' toward the other end surface, but the distance between the first horizontal plate 2a' and the second horizontal plate 2b' is reduced to the average horizontal plate distance. or in addition, the distance between the second horizontal plate 2b' and the first horizontal plate 2a adjacent to the second horizontal plate 2b' on the downstream side of the air passage D is set to the width of the horizontal plates in the horizontal plate assembly 2'. It may be wider than the average interval.

INDUSTRIAL APPLICABILITY The present invention can be widely used for dry paint mist collectors.

1 paint mist collecting device 2a, 2a' first horizontal plate 2a ₁ elongated opening 2a ₁ 'opening group 2b, 2b' second horizontal plate 2b ₁ elongated opening 2b ₁ 'opening group 2' horizontal plate assembly 3 vertical plate 3a First vertical plate portion 3a ₁ elongated opening 3b Second vertical plate portion 3b ₁ elongated opening 3c Extension 3′ First vertical plate assembly 3″ Second vertical plate assembly 4 Lattice structure 5 Box 5a Entrance opening 5b outlet opening 6 filter 7a, 7b baffle plate group
A Horizontal plate assembly
B Vertical plate assembly
C lattice structure
D curved air passage

Claims (14)

A plurality of elongated openings extending in parallel with each other at predetermined intervals and a plurality of slits extending from the peripheral edge to the middle of the longitudinal extension length of the elongated openings with the respective elongated openings sandwiched therebetween are formed. A plurality of first horizontal plates, a plurality of elongated openings extending in parallel with each other at predetermined intervals, and a plurality of elongated openings extending from the periphery to the middle of the longitudinal extension of the elongated openings with the respective elongated openings interposed therebetween. a plurality of second horizontal plates having a plurality of slits formed thereon; a plurality of elongated openings extending in parallel with each other at predetermined intervals; and a plurality of vertical plates formed with a plurality of slits extending halfway through the length, and the first horizontal plates and the second horizontal plates are alternately arranged with a gap therebetween to form a horizontal plate assembly. in the transverse plate assembly, the portions between the adjacent elongated openings of the second transverse plate face the elongated openings of the first transverse plate, and the elongated openings of the second transverse plate face the adjacent elongated openings of the first transverse plate. A plurality of vertical plates are disposed with gaps therebetween to form a vertical plate assembly, and the vertical plate assembly aligns its own slits with the slits of the horizontal plate assembly to form horizontal plates The horizontal plate assembly and the vertical plate assembly cooperate to form a lattice structure, a curved air passage is formed in the lattice structure, and one end surface of the horizontal plate assembly is formed. A plurality of openings sandwiched between the plurality of elongated openings of the first horizontal plate are additionally formed in the first horizontal plate, and the plurality of elongated openings of the first horizontal plate and the additionally formed plurality of openings and the vertical plate The peripheral residual portions of the plurality of elongated openings adjacent to the first horizontal plate of form a baffle plate group composed of a plurality of columnar baffle plates distributed in a row, and the one end face of the horizontal plate assembly is The lattice structure is formed in a box having an inlet opening facing the first horizontal plate and an outlet opening facing the first horizontal plate or the second horizontal plate forming the other end surface of the horizontal plate assembly. A paint mist collecting device, characterized in that it is housed. 2. A paint mist collecting device according to claim 1, wherein each of the plurality of openings sandwiched between the plurality of elongated openings of the first horizontal plate is an opening group comprising a plurality of openings. A plurality of openings sandwiching the plurality of elongated openings of the second horizontal plate are additionally formed in a second horizontal plate adjacent to the first horizontal plate forming one end face of the horizontal plate assembly, The plurality of elongated openings, the additionally formed plurality of openings, and the peripheral remaining portion of the elongated openings adjacent to the second horizontal plate of the vertical plate form a baffle plate group consisting of a plurality of columnar baffle plates distributed in a row. 2. A paint mist collecting device according to claim 1, wherein: 4. The paint mist collecting device according to claim 3, wherein each of the plurality of openings sandwiching the plurality of elongated openings of the second horizontal plate is an opening group composed of a plurality of openings. 3. The interval between the first horizontal plate forming said one end surface of the horizontal plate assembly and the adjacent second horizontal plate is wider than the average interval between the horizontal plates in the horizontal plate assembly. The paint mist collection device described in . The distance between the second horizontal plate adjacent to the first horizontal plate forming the one end surface of the horizontal plate assembly and the first horizontal plate adjacent to the second horizontal plate on the downstream side of the air passage is 6. A paint mist collecting device according to claim 5, wherein the width is wider than the average interval of the horizontal plates. 4. A paint mist trap according to claim 1, wherein the distance between the first horizontal plate and the second horizontal plate decreases from the one end surface of the horizontal plate assembly toward the other end surface. collection device. 4. A paint mist collecting device according to claim 1, wherein a filter is arranged in the box body and adjacent to the other end surface of the horizontal plate assembly. The vertical plate assembly has a first portion that is inserted into the horizontal plate assembly from one end side of the elongated opening of the horizontal plate, and a second portion that is inserted into the horizontal plate assembly from the other end side of the elongated opening of the horizontal plate. 4. The paint mist collection device according to claim 1 or 3, wherein the paint mist collection device is composed of a part. 4. The paint mist collecting device according to claim 1, wherein the lattice structure formed by the cooperation of the horizontal plate assembly and the vertical plate assembly is foldable. 4. The paint mist collecting device according to claim 1, wherein the first horizontal plate, the second horizontal plate, the vertical plate and the box are made of paperboard. 2. The surfaces of the horizontal plates directed to the entrance opening, the both surfaces of the vertical plates, and the inner surface of the box are subjected to surface treatment for enhancing paint mist collection efficiency. 3. The paint mist collecting device according to 3. An inlet opening is formed in a wall surface of the box facing the one end surface of the horizontal plate assembly, and an outlet opening is formed in a wall surface of the box facing the other end surface of the horizontal plate assembly. The paint mist collecting device according to claim 1 or 3. An inlet opening is formed in a wall surface of the box facing the lattice shape of the lattice structure, and an outlet opening is formed in a wall surface of the box facing the other end face of the horizontal plate assembly. 4. A paint mist collecting device according to Item 1 or 3.

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