JP4099178B2 - Bag filter for dust collector and method for attaching bag filter for dust collector - Google Patents

Description

  The present invention relates to a dust filter bag filter and a method of mounting a dust filter bag filter.

  Conventionally, a bag filter for a dust collector has a bag filter itself that forms a cylindrical filter cloth body, and a metal ring-shaped stopper is sewn into the engaging portion of the opening edge portion so that the bag body and the stopper are separated. In general, when replacing the bag filter, the stopper is also discarded along with the bag that has become clogged and cannot be regenerated.

In addition, as a bug filter type dust collector that has a structure in which a plurality of bugs are fixed to a bug holding frame for fixing bugs and the bug holding frame is detachably fixed to the bug house, the bug holding type is fixed and held. An invention is disclosed in which the entire frame is lifted by a crane or the like, and inspection work is performed outside the baghouse (see, for example, Patent Document 1).
JP-A-8-131740

  However, in the above-described conventional example, when the used bug (tubular filter cloth body) is discarded, a snap ring serving as a stopper is sewn to the bug (FIGS. 11A and 11B). There is a problem that the bug must be opened and taken out, and this work is troublesome and the work place is limited because the bug is dirty.

  Further, in the example of Patent Document 1, although the work at the time of inspection as an intermediate process is mentioned, the final process is not described.

  The present invention has been made paying attention to the above points, and the cylindrical filter cloth body and the stopper (snap ring) are separated and provided separately to facilitate attachment / detachment and separation, and to select a work place. It is another object of the present invention to provide a dust collector bag filter and a dust collector bug filter mounting method that can easily separate and dispose of only dirty bugs and allow reuse of a stopper.

  This invention can solve the said subject by providing the following structure.

(1) An easily attachable / detachable stopper formed separately from the receiving hole of the bug holding plate of the dust collector, and a cylinder formed of an opening edge portion having a constricted portion locked to the receiving hole and a filter cloth body portion A bag filter for a dust collector comprising a filter cloth body, wherein the stopper is formed by forming a band of elastic material having a predetermined width larger than the thickness of the bag holding plate in a ring shape, and the outer periphery of the band plate The tube is formed by forming at least two protrusion-shaped locking portions at a desired pitch on the surface, and providing at least two hook-shaped locking portions at a desired pitch toward the outside of the upper edge of the strip. A bag filter for a dust collector, wherein the bag filter is configured to be easily fixed to and detached from the receiving hole of the bug holding plate using the elasticity of a stopper from the inside of the opening edge of the filter cloth body.

  (2) The cylindrical filter cloth body is a first cylindrical filter cloth body having an opening edge portion having a cross-section similar to a heel having a bulge portion in two upper and lower stages and a constricted portion in the middle of the bulge portion, or The bag filter for a dust collector according to the preceding item (1), comprising a second cylindrical filter cloth body having an opening edge portion having a double circular cross section with a string-like body as a core material.

(3) A method for attaching a bag filter for a dust collector as described in (1) above , comprising an easily attachable / detachable stopper and a cylindrical filter cloth body separately from the receiving hole of the bug holding plate of the dust collector. A step of inserting the tubular filter cloth body into the receiving hole of the bug holding plate from either above or below the receiving hole, and the cylinder with respect to the inner peripheral surface of the receiving hole of the bug holding plate A step of applying the outer peripheral surface of the opening edge of the cylindrical filter cloth body, and pressing and deforming the ring-shaped stopper as a separate member from the outer surface toward the inner surface to reduce the deformation of the opening edge of the cylindrical filter cloth body. A step of inserting into the inner peripheral surface, and restoring the shape of the stopper in a ring shape, and elastically pressing and fixing the tubular filter cloth body to the receiving hole of the bug holding plate via the opening edge And the step of attaching the retainer. When replacing the bag filter, the stopper and the tubular filter cloth body are separated. Easy easily attached method bag filter for dust collection apparatus characterized by removal can do.

According to the present invention, the cylindrical filter cloth body and the stopper (snap ring) constituting the bag filter for the dust collector are separately provided, and the attachment and detachment and separation are facilitated. Only bugs can be easily separated, the stopper can be reused, and the stopper can be separated so that the tubular filter cloth can be folded and transported, improving transportation efficiency . Since the stopper has two or more protrusion locking parts on the outer periphery of the band plate, it can be engaged and locked to the cylindrical filter cloth body by the elastic force of the simple band plate, and the tube can be locked by the hook-shaped locking part at the upper edge. Providing a dust filter bag filter and a dust collector bag filter mounting method that can improve workability and cost-effective economic effects, such as being able to securely lock the filter cloth body with a receiving hole. I can do it.

  Embodiments of the bag filter for a dust collector according to the present invention will be described below.

  Fig.1 (a) is a perspective view of the opening edge part of the 1st cylindrical filter cloth body in Example 1, (b) is AA sectional drawing, (c) is the plane of the stopper provided in the different body. FIG. 2D is a side cross-sectional view, FIG. 2E is a cross-sectional view showing a state in which the stopper is attached to the opening edge when the first cylindrical filter cloth body is attached to the bug holding plate, and FIG. ) Is a perspective view showing the shape of a stopper formed in a ring shape with a band plate, (b) is a cross-sectional view of the main part, and FIG. 3 (a) is provided with a hemispherical protrusion on the ring-shaped outer peripheral surface of the band plate. FIG. 4B is a cross-sectional view of the main part, and FIG. 4A is a shape of the stopper provided with a hook-shaped hooking portion toward the outer periphery of the upper edge of the ring-shaped strip. FIG. 5B is a cross-sectional view of the main part, FIG. 5C is a cross-sectional view of another shape example of the latching part, and FIG. 5A is a hemispherical projection part and a hook-like latching part. The perspective view which shows the shape of the fixed stopper, (b) is a principal part cutting FIGS. 6 and 6 are perspective views showing an example of a situation when the stopper is attached, FIG. 7A is a perspective view showing an example of the receiving hole of the bug holding plate, and FIG. 6B is a perspective view of the tubular filter cloth body. FIG. 8A is a perspective view of the opening edge portion of the second cylindrical filter cloth body in Example 2, and FIG. 8B is a cross-sectional view taken along the line BB. c) is a local enlarged view showing a stitched portion formed in a cylindrical shape, (d) is an explanatory view of the stitched portion, (b) is a horizontal cross-sectional enlarged view of the conventional example, and (b) is the horizontal in the improved embodiment. 9 is a cross-sectional view of the opening edge of the second tubular filter cloth body, and FIG. 10A is a perspective view of a ring-shaped stopper with a hook-shaped hook used in Example 2. FIGS. 11A and 11B are cross-sectional views of the main part, and FIG. 11 is a cross-sectional view showing a state in which the ring-shaped stopper is attached to the opening edge when the second cylindrical filter cloth body is attached to the bug holding plate in the second embodiment. FIGS. 12 (a), 12 (b), and 12 (c) are opening edges when the second tubular filter cloth body in Example 2 is attached to a lower bug holding plate having receiving holes of different shapes. And FIG. 13 is a perspective view showing an example of a lid that can be fitted to the opening edge of the tubular filter cloth body in another embodiment, and FIG. It is explanatory drawing at the time of attaching a cover body to the opening edge part of the cylindrical filter cloth body, and fixing with a ring-shaped stopper, (a) is sectional drawing at the time of attaching to upper part, (b) is in lower part. FIG. 15 is a partial cross-sectional view showing a state in which a tubular filter cloth body is attached to a bag holding plate and a retainer is attached, and FIG. 16 is a method for attaching a dust filter bag filter. FIG. 17 is a cross-sectional view showing another embodiment, and FIGS. 18A and 18B are attachments of bag filters in the conventional example. It is sectional drawing which shows a state.

[Embodiment]
A dust collector bag filter comprising a stopper 2 and a cylindrical filter cloth body F, which are separately attached to and removed from the receiving hole 3a of the bug holding plate 3 of the dust collector, and the stopper 2 has a ring shape. The cylindrical filter cloth body F is composed of the first cylindrical filter cloth body 1 or the second cylindrical filter cloth body 100, and uses the elasticity of the stopper 2 from the inside of the opening edge 1a or 100a. Thus, it is configured to be easily fixed and detached from the receiving hole 3a of the bug holding plate 3. In addition, a core material 1b having a bulging portion in the vertical direction sandwiching the constricted portion inside the opening edge portion 1a of the first cylindrical filter cloth body 1 is sewn with a thickness in the vertical direction, and has a cross-sectional shape similar to a heel. In addition, the inside of the opening edge portion 100a of the second cylindrical filter cloth body 100 has a double circular cross-section in which a core material Rp made of a string-like body (rope shape) is sewn, The shape is such that it can be easily locked to the receiving hole 3a. Since the opening edge portion has the above-described configuration, toughness and shape retention are added.

  In the first embodiment, as shown in FIGS. 1A and 1B, the core 1b has a first cylindrical shape having an opening edge 1a having a cross-sectional shape similar to a heel sewn with a thickness in the vertical direction. It is an Example at the time of combining the various fasteners 2, 4, 6, and 8 of FIGS.

  FIGS. 1C, 1D, and 2 are examples of a stopper having a flat surface using a band plate, and the stopper 2 has a predetermined width (bug holding plate 3 made of, for example, a metal elastic material). The band plate (thickness t = 0.3 to 0.5 mm) is formed in a ring shape like a short cylinder, and is fixed by rivet fastening with a seam. 1 to the receiving hole 3a of the bug holding plate 3 from the inside of the opening edge portion 1a of the cylindrical filter cloth body 1, for example, as shown in FIG. After inserting and positioning at a predetermined site, the shape is restored to a ring shape by removing the pressing force, and can be fitted and fixed freely and can be easily detached. 1b is a core material, 1c is a seam, and 1d is a constriction.

  As an application example 1, as shown in FIG. 3, at least one or two or more hemispherical protruding locking portions 5 are provided at a predetermined pitch on the outer peripheral surface of a band plate in which a stopper is formed in a ring shape. This is a case where the stopper 4 is used. When the first cylindrical filter cloth body 1 is inserted into the receiving hole 3a of the bug holding plate 3 and attached with the stopper 4 applied to a predetermined portion, the hemispherical protrusion-like locking portion 5 becomes the opening edge portion 1a. The fiber core 1b is firmly pressed and fixed to the inner peripheral surface of the receiving hole 3a of the bug holding plate 3 at the opposite position. In the present embodiment, the hemispherical protrusion-shaped locking portion 5 is formed by pressing to form a hemispherical protrusion, but the shape is not limited.

  As an application example 2, as shown in FIG. 4, at least one or two or more protruding hook-shaped latching portions 7 with a predetermined pitch toward the outer side of the upper edge of the band plate in which the stopper is formed in a ring shape. This is a case where the stopper 6 is provided. When the first tubular filter cloth body 1 is inserted into the receiving hole 3a of the bug holding plate 3 and attached with the stopper 6 applied to a predetermined portion, the hook-shaped hooking portion 7 is formed at the predetermined portion of the opening edge 1a. It is formed so that it can be hooked on. It is possible to prevent slipping in case of emergency. In addition, the hook-shaped latching part 7 is a case where it is made into a reverse U shape, and as shown in FIG.4 (c), reverse L-shaped latching part 7 '(refer FIG.10 (a), (b) mentioned later)) It is also good.

  The application example 3 is an example in which the above-described stoppers 4 and 6 are combined, and as shown in FIG. 5, a composite-type stopper 8 having both a hemispherical protrusion-like engaging portion and a hook-like engaging portion. This is the case. When the first tubular filter cloth body 1 is inserted into the receiving hole 3a of the bug holding plate 3 and attached with the stopper 8 applied to a predetermined portion, the same effect as in the case of the application example described above can be exhibited. The selection may be made according to the use conditions.

  In this embodiment, in any case, as shown in FIGS. 1B and 1E, a “necked portion” formed by the core material 1b of the opening edge portion 1a of the first cylindrical filter cloth body 1. The feature is that 1d is configured to be easily pressed and fixed by engaging with the inner peripheral edge of the receiving hole 3a of the bug holding plate 3.

  In Example 2, as shown in FIG. 8, the core material 1b has a string-like shape with respect to the first tubular filter cloth body 1 at the opening edge of the cross-section of the heel-like shape sewn with a thickness in the vertical direction. This is a case where the second cylindrical filter cloth body 100 having an opening edge portion 100a having a double circular cross section in which a core material Rp made of a body (rope shape) is sewn is used.

In particular, in the case of the second cylindrical filter cloth body 100 of the second embodiment, as shown in FIGS. 8A, 8C, and 8D, the conventional filter cloth itself is overlapped with the seam 100c. (FIGS. 8D and 8A), there is a phenomenon in which a step g1 is generated in the drawing and the stopper itself is distorted when the stopper is mounted, resulting in poor adhesion. ), As shown in (b), the filter fabric is abutted at the seam to form a cylinder, and a thin fabric _{CO is applied} to the abutment from the front side, and stitched at the seam 1c as shown in the figure. By doing so, the step g1 becomes a small step g0, and the distortion of the stopper itself is almost eliminated when the stopper is mounted. Of course, a thin cloth _CO is preferably a cloth equivalent to a filter cloth.

  In the case of the second cylindrical filter cloth body 100, as shown in FIG. 11, the opening edge portion 100a is slightly more than the receiving hole 3a when inserted into the receiving hole 3a of the bug holding plate 3 and the stopper 101 is attached. The diameter can be expanded and fixed so that the jaw can be caught.

  The type of the stopper can be appropriately selected according to the structure of the receiving hole of the bug holding plate.

  In addition, since the method of using the stopper is the same as that of the first embodiment, the description thereof is omitted.

  FIG. 12 shows an example in which the opening edge portion 100a of the second tubular filter cloth body 100 is attached to the lower bug holding plate.

  FIG. 13 shows an assembling situation when, for example, a metal lid 200 is used instead of the bottom of the cylindrical filter cloth body, and the constricted portion 200a formed at the lower peripheral edge of the lid 200 is fixed. The tools 2 and 4 can be tightly fixed. Further, the lid 200 is provided with a handle 200b so that the lid 200 can be hung with a chain or a rope or tightened downward.

  Next, a method for attaching the bag filter will be described below based on the flowchart of FIG.

  This is a method for attaching a bag filter for a dust collector, which is composed of a stopper that can be easily attached and detached separately from the receiving hole of the bug holder plate of the dust collector and a cylindrical filter cloth body. In step S1, the bag holder 3 is received in step S1. The cylindrical filter cloth body F is inserted into the hole 3a from either the upper side or the lower side of the receiving hole 3a. In step S2, the cylindrical filter cloth body F is inserted into the inner peripheral surface of the receiving hole 3a of the bug holding plate 3. Attach the outer peripheral surfaces of the opening edges 1a and 100a, and in step 3, press any one of the ring-shaped stoppers 2, 4, 6, and 8 from the outer surface toward the inner surface to reduce the deformation ( 6) Insert into the inner peripheral surface of the opening edge 1a, 100a of the tubular filter cloth F, and in step 4, the stopper is reshaped (springback) into a ring shape and elastically filtered. The cloth body F is pressed and fixed to the receiving hole 3a of the bug holding plate 3 through the opening edge portions 1a and 100a, and is attached. Mounting of the bag filter is fitted with a retainer Ide is completed. The retainer is used as necessary.

[Other Examples]
As shown in FIG. 17, the other embodiment is an example in which the side surface of the receiving hole 30a of the bug holding plate 30 has a hollow shape, and 40 is a tubular filter cloth body. Other configurations are the same as those in the above-described embodiment.

  In the case of Example 1 according to the present invention, as shown in FIGS. 1B and 1E, a “necked portion” formed by the core material 1b of the opening edge portion 1a of the first tubular filter cloth body 1. "1d" is configured to be easily pressed and fixed by engaging with the inner peripheral edge of the receiving hole 3a of the bug holding plate 3.

  Moreover, in the case of Example 2 which concerns on this invention, as shown in FIG.8, FIG.9, FIG.11, the opening edge part of the double circular cross section which sewn the core material Rp which consists of a string-like body (rope shape) Since the second cylindrical filter cloth body 100 having 100a is inserted into the receiving hole 3a of the bug holding plate 3 and the stopper 101 is mounted, the opening edge portion 100a is slightly larger in diameter than the receiving hole 3a. The feature is that it can be securely fixed so that the jaw is caught.

  Furthermore, according to the present invention, when replacing the bug filter, the stopper and the cylindrical filter cloth body can be easily and easily removed separately, so that only the dirty bug can be easily separated without selecting the work place. It is possible to recycle the stopper, and the stopper can be reused. Furthermore, by making the stopper separate, the tubular filter cloth body can be folded and transported, improving transport efficiency, etc. The economic effect of cost reduction as well as improvement is great.

  The cylindrical filter cloth body is a non-woven fabric or a woven fabric, and the material of the stopper is a precipitation-hardening stainless steel represented by SUS631 and a type of stainless steel, carbon having elasticity and toughness used for springs and springs. Tool steel is mentioned.

  Furthermore, depending on the material, it is possible to take measures such as coating the entire stopper with a resin film for rust prevention and corrosion prevention, or applying a rust / corrosion prevention agent such as an acid resistant paint.

(A) The perspective view of the opening edge part of the 1st cylindrical filter cloth body in Example 1, (b) is AA sectional drawing, (c) is a top view of the stopper provided in the different body, (d ) Is a side cross-sectional view, and (e) is a cross-sectional view showing a state in which the stopper is attached to the opening edge when the first cylindrical filter cloth body is attached to the bug holding plate. (A) Perspective view showing the shape of a stopper formed in a ring shape with a band plate, (b) Cross-sectional view of the main part (A) Perspective view showing the shape of a stopper provided with a hemispherical protrusion on the ring-shaped outer peripheral surface of the band plate, (b) a sectional view of the main part (A) The perspective view which shows the shape of the stopper which provided the hook-shaped latching part toward the outer periphery of the upper end peripheral part of a ring-shaped strip, (b) Main part sectional drawing, (c) Other shapes of a latching part Cross section showing an example (A) Perspective view showing the shape of a stopper provided with a hemispherical protrusion and a hook-shaped hook, (b) Cross-sectional view of the main part The perspective view which shows an example of the condition when attaching a fastener (A) The perspective view which shows an example of the receiving hole of a bug holding plate, (b) The perspective view which shows the state after attaching a cylindrical filter cloth body with a fastener. (A) The perspective view of the opening edge part of the 2nd cylindrical filter cloth body in Example 2, (b) BB sectional drawing, (c) The local enlarged view which shows the sewing part formed in a cylinder shape, (d) (A) Explanatory drawing of the stitching part, (a) Horizontal cross-sectional enlarged view of the conventional example, (b) Horizontal cross-sectional enlarged view of the embodiment after improvement Sectional drawing of the opening edge part of a 2nd cylindrical filter cloth body (A) Perspective view of ring-shaped stopper with hook-like hooking part used in Example 2, (b) Main part sectional view Sectional drawing which shows the attachment state of the ring-shaped stopper to the opening edge part when mounting | wearing with the 2nd cylindrical filter cloth body in the bug holding plate in Example 2. (A), (b), (c) of the opening edge and the ring-shaped stopper when the second tubular filter cloth body in Example 2 is attached to the lower bug holding plate having the receiving holes of different shapes Cross section showing state The perspective view which shows an example of the cover body which can be fitted to the opening edge part of the cylindrical filter cloth body in another Example. Explanatory drawing when a lid is fitted to the opening edge of the second tubular filter cloth body and fixed with a ring-shaped stopper, (a) a sectional view when attached to the upper part, and (b) attached to the lower part. Cross section of case Partial side sectional view showing a state in which a tubular filter cloth body is attached to the bug holding plate and a retainer is attached. Flow chart showing how to install bag filter for dust collector Sectional view showing another embodiment (A), (b) Sectional drawing which shows the attachment state of the bag filter in a prior art example

Explanation of symbols

F Tubular filter cloth body 1 First tubular filter cloth body 100 Second tubular filter cloth body 1a, 100a Opening edge portions 2, 4, 6, 8, 101 Stopper 3, 30, 40 Bug holding plate 3a , 30a, 40a Receiving hole 5 Protruding locking portion (semispherical protruding portion)
7, 7 ', 101a Hook-shaped hooking portion 10 Retainer head portion 10a Connecting rod-shaped wire 10b Ring wire 10c Retainer bottom portion 10d Exhaust conduit 20 Stopper (stopper sewn into filter cloth)
100b Filter cloth body part Rp Core material (string-like body)

Claims (3)

An easily attachable / detachable stopper formed separately from the receiving hole of the bug holding plate of the dust collector, and a cylindrical filter cloth comprising an opening edge portion having a constricted portion locked to the receiving hole and a filter cloth body portion A bag filter for a dust collector comprising a body, wherein the stopper is formed in a ring shape with an elastic material having a predetermined width larger than the thickness of the bug holding plate, and is desired on the outer peripheral surface of the band plate The cylindrical filter cloth is formed by forming at least two protrusion-shaped locking portions at a pitch, and providing at least two hook-shaped locking portions at a desired pitch toward the outside of the upper edge of the strip. A bag filter for a dust collector, wherein the bag filter is configured to be easily fixed to and removed from the receiving hole of the bug holding plate by using the elasticity of a stopper from the inside of the opening edge of the body.   The tubular filter cloth body is a first tubular filter cloth body having a bulging portion in two upper and lower stages and an opening edge portion having a cross section of a heel-like shape having a constricted portion in the middle of the bulging portion, or a string-shaped body. 2. The bag filter for a dust collector according to claim 1, wherein the bag filter is composed of a second cylindrical filter cloth body having an opening edge portion having a double circular cross-section with a core material. The method for mounting a bag filter for a dust collector according to claim 1 , comprising a stopper and a tubular filter cloth body, which are configured separately from the receiving hole of the bug holding plate of the dust collector, and the tubular filter cloth body. A step of inserting the tubular filter cloth body into the receiving hole of the bug holding plate from above or below the receiving hole; and the cylindrical filter cloth body with respect to the inner peripheral surface of the receiving hole of the bug holding plate. A step of applying the outer peripheral surface of the opening edge of the tube, and pressing and deforming a ring-shaped stopper as a separate member from the outer surface toward the inner surface to the inner peripheral surface of the opening edge of the cylindrical filter cloth body A step of inserting, a step of restoring the shape of the stopper into a ring shape, and a step of elastically pressing and fixing the tubular filter cloth body to the receiving hole of the bug holding plate through the opening edge portion; and Next, the retainer is attached, and when replacing the bag filter, the stopper and the tubular filter cloth body can be easily separated separately. Method of mounting the bag filter for dust collector, characterized in that the easy removal can be.

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