JPH10244114A - Dust removing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily replace dust removing filter by providing a drawing device supporting the dust removing device so as to freely put in and out of a filter treating section and enabling to switch the dust removing filter from the position of dust removing action to the position of dust removing action cancellation by operating an elevating means. SOLUTION: The dust removing filter 36 formed by arranging many cloth like filter elements along the flow direction of vapor phase fluid is housed in the filter treating section 32 and the drawing device 63 supporting the dust removing filter 36 and including a sliding structure 69 for freely putting in and out of the filter treating section 32 is provided inside of the filter treating section 32. And the position of the dust removing action, where the dust removing filter is setted, and the position of dust removing action cancellation for removing from the position of dust removing action and transferring to a position, where the dust removing filter enables to be supported by the drawing device 63, are freely switched to each other in the filter treating section 32 to easily replace the dust removing filter 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas or vapor containing any fine mixture, such as oil mist, oil smoke, or gas or vapor containing dust, or a mist gas. The present invention relates to an improvement of a dust removing device for removing a dust from a gas phase fluid (hereinafter, referred to as a “gas phase fluid” in the present specification).

[0002]

2. Description of the Related Art Conventionally, as this type of dust removing device,
The following [1] and [2] are known. [1] A processing path for a gas phase fluid is formed in a casing, and a suction fan is provided in the processing path, and the suction fan is rotated integrally with the suction fan at a lower side in the gas flow direction than the suction fan. 2. Description of the Related Art There has been conventionally known a filter provided with a rotary filter and a fixed filter in a casing (for example, see Japanese Utility Model Laid-Open No. 57-12214). [2] A processing path for a gas-phase fluid is formed in the casing, and a suction fan and a drum fixed to the casing at the outer periphery of the suction fan are provided in the front processing chamber on the upper side of the processing path. And a centrifugal processing unit that applies a centrifugal force to the gas-phase fluid flowing through the processing path and adsorbs dust in the gas-phase fluid to the filter. A post-processing unit provided with a dust removal filter for removing fine dust in the gas phase fluid that has passed through the centrifugal processing unit is provided in a filter processing chamber on the lower side in the flow direction (for example, Japanese Utility Model Application No. 6-8763). No.).

[0003]

According to the prior art [1], oil mist is directly collected by a rotary filter that rotates coaxially with a suction fan.
There is a problem that the mass of the rotary filter is considerably changed partly by the attached oil mist, causing vibration due to uneven rotation. Moreover, not only the oil mist in the gas phase fluid, but also the oil mist that has been converted into oil droplets that travels on the wall surface in the room where the suction fan is installed is directly adsorbed to the fixed filter. The period was short, and it was difficult to expect a highly accurate removal function. Thus, as a solution to the conventional technique described in the above [1], as described in the above [2], a suction fan and a drum-shaped suction fan fixedly disposed on the casing side at an outer peripheral portion of the suction fan are described. There has also been proposed a dust removing device including a centrifugal processing unit that causes a dust in a gas phase fluid to adsorb to the filter while applying a centrifugal force to a gas phase fluid flowing through a processing path with a filter. In the dust remover configured in this way, the oil mist is prevented from adhering to the fixed filter,
The service life of the fixed filter can be considerably lengthened, and the processing efficiency on the upstream side of the processing path is significantly improved as compared with the dust removing device described in the above [1]. For this reason, during the service life when the fixed filter becomes longer, the total processing amount of the gas-phase fluid supplied to the dust filter on the lower side of the processing path than the centrifugal processing unit increases, and accordingly, the dust is removed. It has become necessary to increase the frequency of filter replacement or the amount of dust filter.

[0004] It is an object of the present invention to easily replace a dust filter provided in a filter processing chamber in a processing path of a gas phase fluid regardless of the amount of the filter, thereby improving maintainability. An object of the present invention is to provide a dust removing device.

[0005]

Means for Solving the Problems The technical means of the dust removing apparatus according to the present invention, which is provided to achieve the above object, includes a processing path for a gas phase fluid to be processed in a casing, and a gas path in the processing path. In a dust removal device provided with a filter processing chamber equipped with a dust removal filter for removing fine dust in a phase fluid, the dust removal filter is supported in the filter treatment chamber, and the dust removal filter is placed inside and outside the filter treatment chamber. A drawer operable to take in and out, a dust removing action posture for raising and lowering the dust filter accommodated in the filter processing chamber by the drawer and setting the dust filter to a desired position in a gas phase fluid flow path, and A dust-removal-cancellation release posture for removing from the set desired position and moving to a position where the drawer can support the device. It is equipped with a freely lifting means switched.

In the dust removing apparatus, a processing path for a gas-phase fluid to be processed is formed in a casing, and a suction fan and an outer periphery of the suction fan are provided in a front processing chamber corresponding to an upper side of the processing path. And a drum-shaped adsorption filter fixedly disposed on the casing side in the section, and applying a centrifugal force to the gas-phase fluid flowing through the processing path to adsorb dust in the gas-phase fluid to the adsorption filter. In the filter processing chamber on the lower side in the gas flow direction than the centrifugal processing unit, a post-processing unit including a dust removing filter for removing fine dust in the gas phase fluid that has passed through the centrifugal processing unit It is good to use what provided.

The drawer includes a support frame that supports the dust filter with respect to the casing, and a slide mechanism that slides the support frame in and out of the casing. A fixed first rail member, a second rail member fixed to the support frame side, and a middle member between the first and second rail members, and a relative slide in a fitted state with both rail members. The supporting frame comprises a rail-side frame portion connected and fixed to the second rail member, and an elevating frame portion provided so as to be able to move up and down relative to the rail-side frame portion. It is preferable to provide a supporting portion for the dust filter on the lifting frame portion.

The elevating means pushes the elevating frame part of the support frame housed in the filter processing chamber by the drawer so as to float up with respect to the rail side frame part, thereby setting a dust removing action posture. It is preferable to provide a drive device that switches to the dust removal action canceling posture by lowering and supporting it on the rail side frame portion.

In providing an opening for taking out and taking out a filter in the filter processing chamber and an opening / closing door capable of opening / closing the opening, the opening / closing door is connected to a casing via a hinge having a vertical axis of rotation. A detachable structure in which a first hinge body fixed to the opening and closing door side and a second hinge body fixed to the casing side are detachably connected to each other; A first hinge body is provided at one of the left and right side edges of the opening / closing door, and the second hinge body is provided at each of the left and right side edges of the opening, with the center of the opening at the center. At a point symmetrical position with respect to the center of the opening.
The hinge is configured to be able to appear alternatively by combining with the first hinge body at two positions having different degrees of phase, and the opening / closing door is configured at a side edge portion on the side provided with the first hinge body. It is preferable to be able to swing freely about the pivot axis of the hinge.

[Operation] The operation of the above-described technical means is as follows. That is, a drawer device that supports the dust filter and allows the dust filter to be moved in and out of the filter processing chamber, and an elevating unit that moves the dust filter up and down to switch between a dust removal action position and a dust removal action release position. Since the filter is provided, it is not necessary to hold and remove the dust filter by hand, and it is possible to remove and insert the dust filter while supporting the weight of the dust filter with the drawer. Further, by inserting and removing with the drawer as described above, the position can be accurately moved from the outside of the filter processing chamber to a predetermined position of the predetermined filter processing chamber, and the dust removing action posture and the action canceling posture by the lifting / lowering means. Is easily and accurately performed.

According to a second aspect of the present invention, the above-described centrifugal processing unit is formed in the front processing chamber corresponding to the upstream side of the gas-phase fluid processing path as the dust removing device. Also provided on the lower side of the flow direction of the gaseous phase fluid is a filter processing chamber in which a dust filter for removing fine dust in the gas phase fluid that has passed through the centrifugal processing section is provided, and the dust filter inside the filter processing chamber is drawn out. When a device configured to be taken in and out via the device and the lifting / lowering means is employed, the service life of the fixed filter in the centrifugal processing unit on the upstream side of the processing path is longer than that of the dust removing device without the centrifugal processing unit.

According to a third aspect of the present invention, the drawer includes a support frame that supports the dust filter with respect to the casing, and a slide mechanism that slides the support frame in and out of the casing. And, the sliding mechanism is located between the first rail member fixed to the casing side, the second rail member fixed to the support frame side, and the first and second rail members. When it is composed of an intermediate rail member that slides relatively to the rail member in a fitted state, the amount of pulling out of the support frame can be increased relative to the length of each rail member.

According to a fourth aspect of the present invention, the lifting means raises and lowers the lifting frame portion of the support frame housed in the filter processing chamber by the drawer so as to rise up with respect to the rail side frame portion to remove dust. When the driving device is configured to be in the operating position and the driving device is switched to the dust removing operation releasing position by lowering the lifting frame portion to be supported by the rail side frame portion, the dust removing filter is changed from the operating position to the operation releasing position by operating the lifting / lowering means. When the switching is performed, the dust removal filter can be pulled out by the drawer, and conversely, when the push-in by the drawer is completed, the dust filter can be pushed up by the elevating means. Therefore, it is easy to quickly and easily put the dust filter in and out, and set it to the desired position.

According to a fifth aspect of the present invention, when the filter processing chamber is provided with an opening for taking in and out the filter and an opening / closing door capable of opening / closing the opening, the first hinge body detachable from each other as described above. A hinge is constituted by the second hinge body, the first hinge body on the side of the opening and closing door is provided at one of the left and right side edges of the door, and the second hinge body is point symmetric about the center of the opening. Since the door is installed at the position, the door is flipped 180 degrees centering on the center of the opening, and the entire hinge can be easily moved to the right without the need to detach and attach the entire hinge to the door or casing. It can be changed to open or left open.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. [Overall Configuration of Dust Removal Apparatus] The dust removal apparatus of the present invention is provided with a processing path for removing dust during the passage of a gas-phase fluid inside a casing 1, and the processing path includes an intake port. A pre-processing unit for removing relatively coarse dust in the gas-phase fluid sucked and introduced from the pre-processing unit;
Centrifugal processing unit 6 that applies a centrifugal force to the gas that has passed through to remove medium dust in the gas-phase fluid;
Post-processing unit 7 that removes fine dust in the gas that has passed
Are provided.

The casing 1 includes a pre-processing case 2 in which a pre-processing section 5 is provided, a centrifugal processing section 6 and a post-processing section 7.
The preprocessing case 2 is configured to be detachable from the main body outer case 3.

A pre-processing section 5 provided inside the pre-processing case 2 is provided with a gas-phase fluid inlet 4 formed on the front surface of the pre-processing case 2.
A baffler unit 10 provided in a state facing the
It is configured by a combination with a louver unit 11 provided on the back side.

The baffle unit 10 has a receiving surface 12A which collides with a gaseous fluid on the front side of a shallow dish-shaped barrier body 12 made of a metal plate, and the receiving surface 12A is made of an aggregate of metal filaments. The first filter 13 is attached. The barrier body 12 is provided with an annular hood 12B on the outer peripheral portion of the receiving surface 12A, and the gas phase fluid introduced from the intake port 4 is supplied to the receiving surface 12A formed by the shallow dish-like wall surface. When a collision occurs, the gas-phase fluid is configured to provide resistance to escape outward in the radial direction. Further, a discharge hole 14 that allows the gaseous fluid to move downward is formed on the lower peripheral surface of the annular hood 12B, and the dynamic pressure of the gaseous fluid that collides with the receiving surface 12A is reduced. It is configured to act downward. Thereby, the large particles and coarse dust of the oil mist in the gas-phase fluid that collided with the receiving surface 12A are captured by the first filter 13 and the oil mist captured by the first filter 13 Thus, the gas-phase fluid is configured to be positively discharged from the discharge hole 14 by a downward dynamic pressure. Below the receiving surface 12 </ b> A of the barrier body 12, a communicating waste material containing oil mist or dust flowing out of the discharge hole 14 is guided to the lower first drain chamber 15 partitioned by the partition plate 17. A pipe 16 is formed, and a drain 1 is provided on the bottom of the first drain chamber 15.
5A is provided. The first drain chamber 15 is provided with a removable waste collection bag 89. The legs 12C of the barrier body 12 are fixed to the front surface of a lattice-shaped louver 19 of the louver unit 11 described later, and the louver unit 11
Each pre-processing case 2 is configured to be detachable.

As shown in FIGS. 3 to 5, the louver unit 11 has a vertical length extending from a ceiling wall of the pretreatment case 2 to an upper surface of the mounting plate 17 also serving as a top plate of the first drain chamber 15, and A pre-processing case 2 is provided in an outer frame 18 having the entire width of the right and left sides of the case 2.
A lattice louver 19, a demister 20, a gutter louver 21, and a sponge filter 22 are incorporated in a layered manner so as to have an area covering the entire inner cross section.

The lattice louvers 19 are shown in FIGS.
As shown in FIG. 3, a plurality of metal plates 19A are formed by stamping out a metal plate at a predetermined width in a predetermined direction, and forming a large number of ventilation holes 23 and punching projections 24 over the entire surface of the metal plate. , 19B and 19C. The first lip-shaped plate material 19A, which is located on the most front side, of the lip-shaped plate materials 19A, 19B, and 19C is the outer frame 18
And are integrally formed. Then, the second step-shaped second plate-shaped material 19B is formed so that the longitudinal direction of the vent hole 23 is orthogonal to the direction of the vent hole 23 of the first step-shaped plate material 19A. The ventilation hole 23 of the third lip-shaped plate material 19C is located just before the second lip-shaped plate material 19B.
Are also formed so as to be orthogonal to the ventilation holes 23. The projecting projections 24 are all projected in the downward direction in the gas-phase fluid passage direction. In this embodiment, the projecting projections of the foremost first lip-shaped plate 19A are provided. 24 project obliquely downward to guide the gas-phase fluid obliquely downward, and the projecting projection 24 of the intermediate second lip-shaped plate 19B projects obliquely to the left and the left to guide the gas-phase fluid obliquely to the left. The projecting projecting piece 24 of the rearmost third lip-shaped plate member 19C projects obliquely upward to guide the gas-phase fluid obliquely upward.

The demister 20 provided on the back of the last third royal plate-like material 19C and the back of the sponge filter 22 is made of a metal mesh material having a mesh of about 5 mm so as to be highly permeable. I have.

The gutter-shaped louvers 21 contact the gas-phase fluid passing through the processing path in the casing 1 and change the flow direction of the gas-phase fluid on the upper side and the lower side, respectively. , A large number of air guide members 25, 26 having a U-shaped cross section
Are arranged in a state where the open sides of the U-shape face each other and are displaced in the plane direction. Each of the air guide members 25 and 26 is a rod-shaped mounting fixture 2 that is attached to and removable from a bracket 18A provided on the inner surface of the upper and lower ends of the outer frame 18.
7 and a cloth-like filter 28 which is detachably attached to the mounting fixture 27. The cloth-like filter 28 is formed in an endless band shape or a band shape having a bag-like portion at both ends, and is disposed in a U-shaped cross section by being attached to the mounting fixture 27.
A guide surface for one gas phase fluid is formed. The gas-phase fluid has a gas permeability that allows passage of a part of the gas-phase fluid that comes into contact with the guide surface, and a collection function that adheres dust in the gas-phase fluid that comes into contact with the guide surface. To realize the air permeability and the dust collecting function, specifically, the cloth-like filter 28 is used.
Is made of a polyester nonwoven fabric.

The sponge filter 22 is a finer filter material than the demister 20 made of metal mesh, but has sufficient air permeability. On the further back side of the sponge filter 22, a louver lid 30 provided with vertical and horizontal cross members 29 constituting a rear surface of the outer frame 18 is provided. Filter 28 and sponge filter 22
Is fixed to the outer frame 18 in such a state that it does not fall off to the rear side.

The louver unit 11 configured as described above can remove the entire outer frame 18 from the inside of the pre-processing case 2 by removing the ceiling plate 2A of the pre-processing case 2 or setting it to an open position. it can.

The pre-processing case 2 is shown in FIG.
As shown in FIGS. 6 and 7, the main body outer case 3 is configured to be swingably openable and closable about a vertical axis. This swinging opening / closing structure is provided in the front processing chamber 31 on the side of the body exterior case 3.
A pair of upper and lower hinge fittings 60 is provided on each of the left and right side walls in the inside, and a pivot shaft 61a that can be inserted into the connection hole 60a of the hinge fitting 60 is provided near the left and right side edge of the preprocessing case 2 side. Is provided by providing a mounting portion 62 of the connecting arm 61 of FIG. The swingable opening / closing direction of the preprocessing case 2 can be changed to the right or the left depending on which of the left and right mounting portions 62 the connecting arm 61 is connected to with the bolt / nut. Have been.

The main body outer case 3 includes a front processing chamber 31 having a large space in the vertical direction and a filter processing chamber 32 long in the horizontal direction. A suction fan 33 is provided in the front processing chamber 31, and a drum-shaped suction filter 3 is provided on an outer peripheral portion of the suction fan 33.
A centrifugal processing unit 6 is provided by providing a separate demister 35 at a boundary between the front processing chamber 31 and the filter processing chamber 32 so as to partition the two chambers 31 and 32. The filter processing chamber 32 is provided with a post-processing unit 7 in which a dust filter 36 is provided.

The suction fan 33 of the centrifugal processing unit 6 has a large number of wing blades 39 erected on the front side of a rotating disk 38 integrally connected to the periphery of the boss 37, Wind feather 3
9 are integrally connected to each other by a conical annular guide plate 40. On the rear side of the rotating disk 38, an auxiliary draft piece 41 having a small amount of protrusion is formed, and the auxiliary draft piece 41 is used for inserting the boss portion 37 of the main body exterior case 3. A small amount of outside air is sucked and introduced from the opening 42. This suction fan 33 is usually 3000 to 4 depending on the properties of the gas phase fluid to be treated.
It is preferably used at about 000 rpm. On the outer peripheral portion of the suction fan 33, a three-layered tubular foamed foam material is arranged outside the drum filter support frame 43 made of an annular net material, so that the coarser ones are arranged in order from the coarser ones. Drum-shaped adsorbents 44, 45 and 46 are provided. The drum filter support frame 43 has four mounting legs 47 and is bolted to an inner wall 48 on the rear side of the pretreatment case 2. In this mounting state, the drum-shaped adsorbents 44, 45, 46 are fixed in a state of being separated from both the inner wall 48 and the rear casing vertical wall portion 50 provided with the separate demister 35. It is configured to avoid direct contact with the oil mist that has been turned into oil droplets traveling on both walls.

The separate demister 35 has a vertical wall portion 5 that separates the front processing chamber 31 and the filter processing chamber 32 from each other.
0, a ventilation opening 51 communicating the chambers 31 and 32 is formed, and a thin plate made of metal fiber is disposed over the entire surface of the ventilation opening 51.
The separate demister 35 is provided with the two chambers 31, 32.
This is to suppress the flow of oil droplets, oil mist remaining in the vapor phase fluid, or residual dust flowing in the vertical wall portion 50 that separates the oil into the filter processing chamber 32. At a position corresponding to the bottom of the front processing chamber 31, a ventilation opening 5 provided with the separate demister 35 is provided.
1, a second drain chamber 52 is provided as a bottom drain portion, and an upper surface of the second drain chamber 52 is provided with a partition member 53 positioned lower than the separate demister 35. ing. This partition member 5
Reference numeral 3 is made of a punching metal or the like that is coarser than the separate demister 35 so as to allow a substance that has not passed through the separate demister 35 to pass to the second drain chamber 52 side.

In the filter processing chamber 32, a cloth-like filter element 36a made of extremely fine fibers having a diameter of about 1 micron and called an electric stone filter is provided.
Are provided along the flow direction of the gas-phase fluid in a large number, and a dust filter 36 is provided. The gas-phase fluid is passed between the filter elements 36a of the dust filter 36, and a small amount of residual gas is left. The post-processing unit 7 is configured to almost completely remove oil mist and fine dust. An upward exhaust port 8 for discharging the processed gaseous fluid is formed in the ceiling of the filter processing chamber 32, and an electric motor 9 for driving the suction fan 33 is provided on a lateral side of the exhaust port 8. Is mounted and fixed. On the rear side of the filter processing chamber 32, there is formed a filter insertion / removal opening 56 having a size that allows the dust removal filter 36 to be inserted / removed.
An opening / closing door 57 for opening and closing is provided.

[Structure of Filter Replacement Device] In the filter processing chamber 32, a dust removal filter 36 is supported as follows, and the filter processing chamber 32 is configured so as to be capable of being taken in and out of the filter processing chamber 32. Inside the filter processing chamber 32, a drawer 63 that supports the dust filter 36 and is operable to be put in and out of the filter processing chamber 32, and that the dust filter 36 is removed from the set position to remove the dust filter 36. An elevating means 74 is provided which can be switched to a dust removal action canceling posture for moving to a position where it can be supported by the drawer 63.

As shown in FIGS. 9 to 11, the drawer 63 is provided with a dust filter 36 for the casing 1.
And a slide mechanism 69 for sliding the support frame 64 in and out of the casing 1. The slide mechanism 69 is fixed to the inner surface of the side wall of the casing 1, and
A first rail member 70 having a guide length substantially equal to the depth length of the filter processing chamber 32, and a first rail member 70 fixed to the support frame 64 side and having a guide length substantially equal to the length of the support frame 64 in and out of the support frame 64. The two rail members 71 are located in the middle of the first and second rail members 70, 71, and have the same length in the guide direction as the two rail members 70, 71. And an intermediate rail member 72 that slides relative to the base member 71 in a fitted state. As shown in FIGS. 9 to 11, the intermediate rail member 72 and the first rail member 70 and the second rail member 71 are formed on the left and right sides of the intermediate rail member 72 having the I-shaped cross section. The first rail member 7
The 0 and the second rail members 71 are individually fitted to each other via a large number of steel balls 73 therebetween, and are configured to be slidable with respect to each other. And the dust filter 3
In a state where substantially the entirety of the first rail member 70 is exposed to the outside of the casing 1, further sliding movement of each of the rail members 70, 71, 72 is restricted at a substantially intermediate position in the longitudinal direction of the first rail member 70. Intermediate rail member 7 with respect to first rail member 70
And a stopper is provided to prevent relative movement of the second rail member 71 with respect to the intermediate rail member 72 at a substantially intermediate position in the longitudinal direction of the intermediate rail member 72, and so on. It is configured to regulate the extension operation of the.

The support frame 64 is provided with the second rail member 71.
A rail-side frame portion 65 connected to and fixed to the rail-side frame portion 65, and an elevating frame portion 66 mounted on the rail-side frame portion 65 and provided so as to be movable up and down relatively. Support section 67 for mounting dust filter 36
Is provided. The rail-side frame portion 65 is constituted by a pair of front-rear direction frames along the second rail member 71, and an elevating frame portion 66 constituted by a rectangular frame and a frame crossing the center thereof is mounted thereon. A guide hole 66a for guiding a guide pin 65a projecting downward at four corners of the elevating frame portion 66 is provided in the rail side frame portion 65. A jack-up fulcrum ball 68 is provided on a downwardly facing surface at the center of the lifting frame portion 66. The jack-up fulcrum ball 68 receives a push-up action of a lifting means 74 described later. The dust filter 36 is configured to be lifted together with the dust filter 66. Therefore, the jack-up fulcrum ball 68
Is accurately set so as to be located immediately below the center of gravity of the dust filter 36 mounted on the support portion 67 of the lifting frame portion 66.

The elevating means 74 is provided with the drawer 63
Frame 6 placed in filter processing chamber 32 by
4 is provided with a push-up plate 75 which contacts the lower end of the jack-up fulcrum ball 68 in order to push up and down the lifting frame portion 66 of the rail-side frame portion 65 so as to float up. The apparatus is provided with a driving device 76 that drives up. This drive device 76 is provided with a jack similar to a general vehicle jack, that is, a push-up plate 75 is provided at the upper end of a refraction link 77, and a screw shaft 78 for changing the link angle is rotated to raise and lower the position of the push-up plate 75. It is configured to change the position. However, the horizontal position of the lower end of the link 77 of the jack is fixed to an appropriate position at the bottom of the filter processing chamber 32. Lifting means 74
Is smaller than the length (about 20 mm) of the guide pin 65a provided on the lifting frame portion 66, and the lifting frame portion 66 is placed and supported on the rail side frame portion 65. From the lifting frame part 6
6 rises from the rail-side frame portion, and is a range up to a position where the upper end of the dust filter 36 supported by the elevating frame portion 66 comes into contact with a predetermined position on the ceiling side of the filter processing chamber 32. In the real thing, about 10mm
It is about.

An opening 56 for taking in and out the filter of the filter processing chamber 32 and an opening / closing door 57 capable of opening and closing the opening 56 are configured as follows. 7 to 1
0 and as shown in FIG.
Is provided with a handle 79 near the left and right side edges, and is removably connected to the casing 1 via a hinge 80 having a vertical axis P of rotation. A first hinge body 81 fixed to the side and a second hinge body 82 fixed to the casing 1 have a disassemblable structure that is configured to be detachable from each other.

A first hinge body 8 fixed to the door 57
Reference numeral 1 denotes a pair of upper and lower support arms 83 provided at one of the left and right side edges of the opening / closing door 57, and the support arms 83
Pivot pins 84 provided at both ends in the top and bottom directions
It is composed of A second fixed to the casing 1 side
The hinge body 82 is provided in the opening 56 of each of a pair of upper and lower hinge receiving members 85 provided on the inner surface of the filter processing chamber 32.
Provided near the left and right side edges of the
6 is formed by a pivotal support hole 86 formed of a long hole extending along the insertion / removal direction. Each of the pivot holes 86 is provided at a point symmetrical position with respect to the center O of the opening 56 when viewed in the front-rear direction.
The hinge 80 can be exposed on either the right or left side of the door 57 by selectively engaging with the pivot pin 84 of the first hinge body 81 at two positions having a phase difference of 80 degrees. Is configured.

That is, when the side edge portion on the side provided with the first hinge body 81 is located on the left side of the door 57, the first hinge body 81 is When the two hinges 82 are engaged, a hinge 80 is formed on the left side edge of the door 57, and the door 57 is opened leftward about the pivot axis P of the hinge 80. In the case of forming the right-opening door 57, the door 57 is turned 180 degrees around the center O of the opening 56, and the side edge portion provided with the first hinge body 81 is opened and closed. And the first hinge body 81 is engaged with the second hinge body 82 on the right side of the opening 56. At this time, since the pivot hole 86 of the second hinge body 82 is a long hole, the pivot pin 84 of the first hinge body 81 is
With the opening and closing of the opening and closing door 57, it can be moved back and forth. Accordingly, the length of the support arm 83 for holding the pivot pin 84 of the first hinge body 81 is increased to some extent so that the opening / closing door 57 is completely displaced from the movement trajectory when the dust filter 36 is taken in and out in the open position. (See FIG. 9), the position of the axis of the hinge 80 is
Irrespective of the opening and closing of the filter processing chamber 32. After the opening and closing door 57 closes the opening 56, the opening 56
Are fixed to the casing 1 by stud bolts 87 provided in the vicinity of the periphery and nuts 88 with knobs attached from the outside of the door 57. Of course, the major axis direction of the long hole of the pivot hole 86 of the second hinge body 82 also coincides with the axial direction of the stud bolt 87.

[Configuration of Waste Collection Bag] A removable waste collection bag 8 provided in the first drain chamber 15
Numeral 9 is made of a foldable non-woven filter material as shown in FIG. 12, and is installed in the first drain chamber 15 so as to allow the oil in the waste to pass through and collect sludge. You. The waste collection bag 89 is provided with a take-out cord 90, and a magnet 91 is provided outside the bag 89 so as to maintain the opened state of the bag 89 expanded in the first drain chamber 15. Is provided. [Other Embodiments] [1] The drawer device 63 includes a first rail member 70, a second rail member 71, and the first and second rail members 70 as described in the above embodiment. The first and second rail members 70 and 71 are not limited to the one that constitutes the slide mechanism 69 from the intermediate rail member 72 located in the middle of the first and second rail members 72, 71. Thus, the intermediate rail member 72 may be extended to the inside of the front processing chamber 31 and omitted. In this case, since the vertical wall portion 50 or the separate demister 35 that separates the front processing chamber 31 and the filter processing chamber 32 is partially cut off, the oil droplets traveling along the vertical wall portion 50 that separates the two chambers 31 and 32 are formed. The cut-off portion and the first and the first oil mist in the gaseous phase fluid on the front processing chamber 31 side or the residual dust are prevented from directly flowing into the filter processing chamber 32 side. It is preferable to provide a cover member for closing a portion where the second rail members 70 and 71 enter the front processing chamber 31 side. [2] The elevating means 74 is not limited to the one using the jack using the link and the screw shaft as shown in the above-described embodiment, but uses, for example, a wedge-shaped cam and a screw shaft for putting the wedge in and out. The screw shaft may be driven by a lifting device using a hydraulic jack or an electric motor.

[0038]

Therefore, according to the present invention, by using the drawer and the lifting / lowering means, it is possible to insert and remove a large amount of heavy filters by hand between the inside and outside of the filter processing room where there is not enough space. In addition, the need for a great deal of labor is eliminated, and filter replacement becomes easy even when the amount of the dust filter is large. Then, when the dust filter is installed at a predetermined position of the predetermined filter processing chamber, the set position by the drawer,
Since the amount of elevating and lowering by the elevating means is properly determined, the setting can be performed with high accuracy and speed as compared with a case where the position is set at a predetermined position completely artificially.

According to a second aspect of the present invention, a dust removing device having the above-described centrifugal processing section is employed in a front processing chamber corresponding to the upper side in the processing path of the gas phase fluid. Also provided with a filter processing chamber on the lower side in the gas-phase fluid flow direction, if the dust filter in this filter processing chamber is configured to be taken in and out via the drawer and the elevating means, the centrifugal processing unit on the upper side of the processing path In addition to the long service life of the fixed filter, the service life can be extended by increasing the amount of the dust filter even on the lower side of the processing path, and the frequency of filter replacement can be reduced as a whole apparatus.

[0040] As described in claim 3, the first rail member fixed to the casing side and the second rail member fixed to the support frame side.
By using a slide mechanism consisting of a rail material and an intermediate rail material that slides relative to both rail materials in a fitted state, the support frame is taken in and out. The amount of pulling out of the support frame can be increased, and the dust filter can be easily attached and detached.

According to a fourth aspect of the present invention, when the lifting means is used, the dust filter can be easily switched between the operating position and the operation releasing position by operating the lifting means, and the dust removing filter is used when the drawing device is pulled out. However, there is no problem that the dust filter is rubbed and damaged in the casing chamber, and the contact portion with the casing is deformed, and the dust filter can be easily taken in and out, and setting to the desired position can be quickly and easily performed.

According to a fifth aspect, the first door on the side of the opening and closing door is provided.
The hinge body and the second hinge body on the opening side constitute a detachable hinge, and the attachment position of the first hinge body to the door and the attachment position of the second hinge body to the opening are constituted as described above. This allows the door to be turned 180 degrees around the center of the opening and mounted, without the necessity of attaching / detaching the entire hinge to / from the door or casing, and simply turning the door 180 degrees. Thus, the door opening / closing direction can be changed to the right opening or the left opening.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing the entire dust removing apparatus.

FIG. 2 is an exploded perspective view showing the entire dust removing device.

FIG. 3 is an enlarged sectional view around the louver unit.

FIG. 4 is a partial cross-sectional view of the louver unit.

FIG. 5 is a partially cutaway front view of the louver unit.

FIG. 6 is a plan view showing a structure of a hinge portion of the pretreatment case.

FIG. 7 is a partially cutaway plan view of a main body outer case.

FIG. 8 is a rear view of the outer case of the main body.

FIG. 9 is an exploded perspective view showing the structure of a drawer portion of the dust filter.

FIG. 10 is a perspective view showing a stored state of the drawer device.

11 is a view taken along line aa in FIG.

FIG. 12 is a plan view showing a hinge part structure of the door.

FIG. 13 is a perspective view of a waste collection bag.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 6 Centrifugal processing part 7 Post-processing part 31 Front processing chamber 32 Filter processing chamber 33 Suction fan 34 Adsorption filter 36 Dust removal filter 50 Vertical wall part 56 Filter opening / closing opening 57 Opening / closing door 63 Drawer 64 Support frame 65 Rail side Frame part 66 Elevating frame part 67 Support part 69 Slide mechanism 70 First rail member 71 Second rail member 72 Intermediate rail member 74 Elevating means 76 Driving device 80 Hinge 81 First hinge body 82 Second hinge body O Center of opening P times Moving shaft core

Claims (5)

[Claims] 1. A dust removal apparatus comprising a processing path for a gas phase fluid to be processed in a casing, and a filter processing chamber provided with a dust filter for removing fine dust in the gas phase fluid in the processing path. An extraction device that supports the dust filter in the filter processing chamber, and that allows the dust filter to be moved in and out of the filter processing chamber, and the dust removal device that is housed in the filter processing chamber by the extraction device. A dust removing action posture in which the filter is moved up and down to set it to a desired position in the gas-phase fluid flow path; and the dust removing filter is moved from the set desired position to a position where it can be supported by the drawer. A dust removing device comprising a lifting means 74 that can be switched to a dust removing action canceling posture. 2. The dust removing device has a processing path for a gas-phase fluid to be processed in a casing, and a suction fan and a suction fan of the suction fan are provided in a front processing chamber corresponding to an upper side of the processing path. A drum-shaped adsorption filter fixedly disposed on the casing side at the outer peripheral portion, and a centrifugal treatment for applying a centrifugal force to the gas-phase fluid flowing through the processing path to adsorb dust in the gas-phase fluid to the adsorption filter; Post-processing comprising a dust filter for removing fine dust in the gas phase fluid that has passed through the centrifugal processing unit, in a filter processing chamber on the lower side in the gas flow direction than the centrifugal processing unit. The dust removing device according to claim 1, further comprising a part. 3. The drawer includes a support frame that supports the dust filter with respect to the casing 1, and a slide mechanism that slides the support frame in and out of the casing. A first rail member fixed to the casing side, a second rail member fixed to the support frame side, and positioned between the first and second rail members, and fitted to both rail members; The support frame is a rail-side frame portion connected and fixed to the second rail member, and an elevating frame provided to be able to move up and down relative to the rail-side frame portion. The dust removing device according to claim 1, further comprising a supporting portion for the dust removing filter, the supporting portion being provided on a lifting frame portion thereof. 4. The lifting frame pushes up and down the lifting frame portion of the support frame housed in the filter processing chamber by the drawer so as to float up with respect to the rail side frame portion, thereby setting the dust removal action posture. 4. A driving device for switching the dust removing action releasing posture by lowering the portion to be supported by the rail side frame portion.
A dust remover as described. 5. An opening for taking out and taking out a filter and an opening / closing door capable of opening / closing the opening are provided in a part of a case wall of the filter processing chamber, and the opening / closing door is provided with a vertically rotating shaft. A first hinge body fixed to the opening and closing door side and a second hinge body fixed to the casing side are detachably connected to the casing via a hinge having a core. A freely configured disassembly structure, wherein the first hinge body is provided on one of the left and right side edges of the opening and closing door, and the second hinge body is provided on each of the left and right side edges of the opening. Each of the portions is provided at a point symmetrical position about the center of the opening, and hinges are selectively provided at two positions 180 degrees out of phase from the center of the opening by combining with the first hinge body. It is configured to be able to appear, and the opening and closing door is The hinge according to any one of claims 1 to 4, wherein the hinge is configured to be able to swing open and close about a rotation axis of a hinge formed on a side edge portion provided with the first hinge body. Dust removal device.