JP3203010U - Dust collector, dust collector - Google Patents

Abstract

An object of the present invention is to always collect an appropriate amount of dust while preventing dust from being scattered and exposed, to facilitate replacement work of a collection bag, and to reduce costs. A dust collecting device includes a hopper 7 for temporarily storing dust collected by a filter, and a discharge port 13a provided below the hopper 7 and discharging dust stored in the hopper 7. And a bottomed collection bag 20 for storing the dust discharged from the discharge port 13a, and a storage box 10 for storing the collection bag 20 and allowing the dust in the collection bag 20 to be visually observed. ing. The capacity of the collection bag 20 is equal to or greater than the capacity of the storage box 10. A string 21 for attaching / detaching the collection bag 20 to / from the cylinder portion 13 is provided at the opening of the collection bag 20. [Selection] Figure 4

Description

  The present invention relates to a dust collection device equipped in a dust collector that collects dust in a gas, and a dust collector using the same.

  The dust collector installed at the work site where dust is generated is composed of a primary housing with a filter inside, a secondary housing adjacent to the primary housing, and a dust collection provided below the primary housing. Device. The dust-containing air flow introduced from the intake port of the primary side housing is filtered by a filter to be converted into a clean air flow, introduced into the secondary side housing, and exhausted to the outside from the exhaust port of the secondary side housing. On the other hand, the dust collected by the filter falls to the hopper of the dust recovery device and is stored here. When a certain amount of dust has accumulated in the hopper, the valve is opened to drop the dust in the hopper and collect it in a bag or box.

  By the way, in recent years, there are more opportunities to handle powders that affect the human body, such as nanoparticles and asbestos dust, and these powders are more thoroughly scattered and exposed than before. There is a growing need for prevention. Therefore, when collecting dust in a dust collector, a measure that can reliably prevent dust scattering and exposure is desired.

  Patent Document 1 and Patent Document 2 below describe a dust recovery device that recovers dust using a recovery bag. In the dust collection device of Patent Document 1, a cartridge in which a collection bag is folded in a bellows shape is mounted on the outer periphery of a dust discharge unit, and after the collection bag is pulled out from the cartridge or pulled out downward However, the dust in the hopper is collected in the collection bag. Then, after collecting the dust, the collection bag is bundled at two locations, and the middle portion of both the bundled portions is cut to separate the waste collection bag in which the upper portion is bound and the dust is stored, and the dust discharge portion The collection bag with the lower part bound around the area prepares for the next dust discharge. When there is no collection bag in the cartridge, the cartridge is removed and a new cartridge is installed.

  Moreover, the dust collection | recovery apparatus of patent document 2 is provided with the dust box couple | bonded with the lower opening of the air inflow chamber so that attachment or detachment was possible. A collection bag for receiving the dust falling from the opening is mounted inside the dust box. In addition, an open / close means is provided for connecting the internal space of the air inflow chamber and the internal space of the dust box via a communication path and opening and closing the opening. When collecting the dust in the collection bag, the opening / closing means is opened. On the other hand, when the collection bag is taken out from the dust box, the opening / closing means is closed, and the dust box is separated from the opening.

Japanese Patent No. 4773171 Japanese Patent No. 3248076

  In the dust collection device of Patent Document 1, since the lower part (bottom surface) of the collection bag is bundled with a bundling member, if this bundling part opens without being able to withstand the weight of the dust, the dust inside the collection bag is removed. There is a problem of scattering and exposure in large quantities. In addition, since the remaining amount of the collection bag in the cartridge cannot be accurately determined, the length of the bag is insufficient at the time of collecting the dust, and the dust may not be collected to the end. On the contrary, if the collection bag is pulled out too much and excessive dust is packed in the bag, the collection bag may be damaged during transportation. Furthermore, the thing of patent document 1 requires the special cartridge which accommodated the collection bag folded in the shape of a bellows, and while a cost increases, it also requires time and effort for replacement | exchange of a cartridge, and there exists a problem that work efficiency is bad. there were.

  Moreover, in the dust collection apparatus of patent document 2, although the discharge | emission operation | work of dust is simplified, since the collection | recovery bag is not sealed, prevention of dust scattering and exposure is inadequate. In particular, powders having a very small particle size such as nanoparticles fluctuate in a slight air flow, and there is a risk that an operator may be exposed to the powder when curing the collection bag.

  SUMMARY OF THE INVENTION In view of the above problems, the present invention aims to always collect an appropriate amount of dust while preventing dust from being scattered and exposed, to facilitate replacement of the collection bag, and to reduce the cost. It is said.

  A dust collection device according to the present invention is a dust collection device that is equipped in a dust collector equipped with a filter and collects dust in the gas collected by the filter, and temporarily stores the dust collected by the filter. A hopper, a cylinder portion provided below the hopper and having a discharge port for discharging dust stored in the hopper, a bottomed collection bag for storing the dust discharged from the discharge port, A storage box for storing the collection bag and allowing the dust in the collection bag to be visually observed, and an elevating means for raising and lowering the storage box are provided. The capacity of the collection bag is equal to or greater than the capacity of the storage box, and an attachment / detachment means for attaching / detaching the collection bag to / from the cylinder part is provided at the opening of the collection bag. The collection bag is stored in the storage box while being attached to the cylinder portion of the hopper by the attaching / detaching means, and extends when the storage box is lowered. The elevating means lowers the storage box to a position where the collection bag is extended and a region necessary for binding is secured above the collection bag.

  According to such a configuration, since the collection bag is a bottomed bag, the binding portion at the bottom of the collection bag is opened by the weight of dust as in Patent Document 1, and the dust in the bag is scattered and exposed. There is nothing. Moreover, since the collection bag has a fixed capacity and the amount of dust in the collection bag is visible through the storage box, the collection bag does not contain excessive dust, and the bag is prevented from being damaged. . Further, since the capacity of the collection bag is equal to or greater than the capacity of the storage box, there is an excess part on the opening side of the collection bag containing the dust, and the binding work can be performed in this part. Furthermore, since the collection bag can be easily attached / detached by the attaching / detaching means, the exchange operation of the collection bag is easy, and a dedicated cartridge as in Patent Document 1 is not required, so that the cost can be reduced. . In addition, when storing the dust in the collection bag, the collection box is extended by lowering the storage box with the lifting means, so the amount of dust stored in the bag can be easily grasped, and excessive dust can be put in. This can be avoided, and the subsequent collection bag bundling operation can be easily performed.

  In the dust collecting apparatus of the present invention, it is preferable that the upper end of the storage box is at the same position as or above the lower end of the cylindrical portion before the dust stored in the hopper is discharged. Further, the elevating means may be provided on a movable carriage.

  In the dust collecting apparatus of the present invention, the storage box may include a door that can be opened and closed on a side surface. Even if you cannot secure a surplus portion that can be bundled at the top of the collection bag due to mistakes in the work procedure, you can open the storage box door and lift the bag in the box. It becomes possible.

  Next, a dust collector according to the present invention includes a primary housing into which a dust-containing airflow is introduced, a filter provided in the primary-side housing, which filters the dust-containing airflow, is adjacent to the primary housing, and is filtered by a filter. A dust collector including a secondary housing into which the clean airflow is introduced and a dust recovery device provided below the primary housing, wherein the dust recovery device of the present invention described above is used as the dust recovery device. It was.

  According to the present invention, it is possible to always collect an appropriate amount of dust while preventing dust from being scattered and exposed, to facilitate the replacement operation of the collection bag, and to reduce the cost.

It is a side view of a dust collector concerning an embodiment of the present invention. It is a front view of the dust collector. It is a perspective view of the dust collector. It is sectional drawing (initial setting state) for demonstrating the collection | recovery procedure of dust. It is sectional drawing (dust storage state) for demonstrating the collection | recovery procedure of dust. It is sectional drawing for demonstrating the collection | recovery procedure of dust (a storage box fall state). It is sectional drawing for demonstrating the collection | recovery procedure of dust (dust discharge state). It is sectional drawing for demonstrating the collection | recovery procedure of dust (dust discharge completion state). It is sectional drawing for demonstrating the collection | recovery procedure of dust (storage box re-lowering state). It is sectional drawing (collection bag bundling state) for demonstrating the collection | recovery procedure of dust. It is sectional drawing for demonstrating the collection | recovery procedure of dust (a collection | recovery bag isolation | separation state). It is sectional drawing (fixed band removal state) for demonstrating the collection | recovery procedure of dust. It is sectional drawing for demonstrating the collection | recovery procedure of dust (new collection bag attachment state). It is sectional drawing for demonstrating the collection | recovery procedure of dust (bag residual part removal state). It is sectional drawing for demonstrating the collection | recovery procedure of dust (stationary band attachment state). It is sectional drawing for demonstrating the collection | recovery procedure of dust (new collection bag set completion state). It is a perspective view which shows the other example of a storage box. It is a perspective view which shows the other example of a storage box. It is a perspective view which shows the other example of a storage box. It is a perspective view which shows the state which opened the door of the storage box of FIG. It is the figure which showed typically the dust collection | recovery procedure by other embodiment. FIG. 21B is a continuation view of FIG. 21A. It is a figure of a continuation of FIG. 21B.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each drawing, the same reference numerals are given to the same or corresponding parts.

  1 to 3 show a dust collector 100 according to an embodiment of the present invention. The dust collector 100 is provided on the primary side housing 1, the secondary side housing 2 adjacent to the primary side housing 1, the filter 3 provided inside the primary side housing 1, and the primary side housing 1. A lid 4 that covers the filter exchange port 1a (FIG. 1) and a pressing means 5 that presses the lid 4 are provided. The primary housing 1 is provided with an intake port 53 into which a dust-containing airflow is introduced. A tank 54 for storing compressed air for cleaning the filter is connected to the secondary housing 2.

  As shown in FIG. 1 to FIG. 3, the dust collector 100 has a support leg 6 that supports the housings 1, 2, a hopper 7 that temporarily stores dust falling from the primary housing 1, and a hopper 7. A discharge valve 8 for discharging the dust by operating the handle 8b, a storage box 10 for storing a collection bag (to be described later) for collecting the discharged dust, and a lifting means 11 for adjusting the vertical position of the storage box 10 And a carriage 12 on which the lifting means 11 is placed.

  In the dust collector 100 described above, the dust-containing airflow introduced into the primary housing 1 from the air inlet 53 is filtered by the filter 3 to become a clean airflow, and is introduced into the secondary housing 2. Through the exhaust port (not shown). The dust collected by the filter 3 falls to the hopper 7 located below the primary housing 1 and is stored here. When the dust accumulated in the hopper 7 reaches a certain amount, the handle 8b is operated to open the discharge valve 8, and the dust in the hopper 7 is collected in a collection bag in the storage box 10.

  Next, the details of the dust recovery apparatus according to the embodiment of the present invention will be described with reference to FIG. The dust collection device includes a hopper 7, a discharge valve 8, a cylinder part 13, a storage box 10, a lifting / lowering means 11, a carriage 12, and a collection bag 20.

  The hopper 7 has a horn shape opened upward, a storage portion 7a that forms a storage space S for dust collected by the filter 3 (FIG. 1), and a cylindrical portion 7b that extends downward from the storage portion 7a. And have. The discharge valve 8 is located at the lower end of the cylindrical portion 7b and includes a rotatable damper 8a and a handle 8b for operating the damper 8a. A cylindrical portion 13 is provided below the discharge valve 8.

  The cylinder part 13 has the discharge port 13a from which dust is discharged at the lower end. The inner diameter of the cylindrical portion 13 is substantially the same as the inner diameter of the cylindrical portion 7b. Positioning rings 22a and 22b are fixed to the outer periphery of the cylindrical portion 13 by welding or the like. The positioning rings 22 a and 22 b are for positioning a fixing band 23 for attaching the collection bag 20 to the cylindrical portion 13.

  The collection bag 20 is a bottomed bag formed of a material such as transparent vinyl chloride or polyethylene, and has a string 21 as an attaching / detaching means at the opening. The collection bag 20 is detachably attached to the outer periphery of the cylindrical portion 13 by squeezing the string 21. The attaching / detaching means is not limited to the string, and other means such as a rubber ring may be adopted.

  The storage box 10 is composed of a box body whose upper part is opened so that dust in the collection bag 20 can be visually observed from the outside. Note that the storage box 10 may be formed of a transparent material for easier viewing. A collection bag 20 is stored in the storage box 10, and the capacity of the collection bag 20 is greater than or equal to the capacity of the storage box 10.

  The elevating means 11 is for elevating the storage box 10 and includes a table 11a on which the storage box 10 is placed and a pantograph mechanism 11b connected to the table 11a. The pantograph mechanism 11b expands and contracts in the vertical direction using a hydraulic cylinder or the like as a drive source by operating an operation unit (not shown), and moves the table 11a up and down.

  The carriage 12 includes a base 12a that supports the elevating means 11, a caster 12b provided on the base 12a, and a frame 12c that stands on the base 12a, and is movable. .

  Next, a procedure for collecting dust will be described with reference to FIGS.

  First, as shown in FIG. 4, with the collection bag 20 attached to the cylinder portion 13 with the string 21 and the fixed band 23, the collection bag 20 is stored in the storage box 10 to be in an initial set state.

  The dust collected by the filter 3 in the primary housing 1 falls to the hopper 7 and is stored in the storage space S. FIG. 5 shows a state where dust D is stored in the hopper 7.

  When the dust D stored in the hopper 7 reaches a certain amount, preparations for discharging the dust D are started. First, the lifting / lowering means 11 is driven to lower the storage box 10 together with the table 11a as shown in FIG. Thereby, since the collection bag 20 in the storage box 10 extends, the amount of the dust D stored in the bag can be easily grasped, and excessive dust D can be avoided. In the state of FIG. 6 before the dust D is discharged, the upper end of the storage box 10 is at the same position as the lower end of the cylindrical portion 13.

  From this state, when the handle 8b of the discharge valve 8 is operated to open the damper 8a as shown in FIG. 7, the dust D stored in the hopper 7 passes through the discharge valve 8 and the cylinder portion 13 and is discharged. It is discharged from the outlet 13a and accommodated in the collection bag 20. FIG. 8 shows a state where the discharge of the dust D is completed. When the dust discharge is completed, the handle 8b is operated again to close the damper 8a.

  Next, as shown in FIG. 9, the elevating means 11 is driven to further lower the storage box 10 together with the table 11a to the lowest position. Thereby, the collection bag 20 in the storage box 10 further expands, and an area Z necessary for binding is secured in the upper part of the collection bag 20. For this reason, the bundling work of the next process can be easily performed.

  Next, as shown in FIG. 10, the two places between the part in which the dust D is accommodated and the part fixed to the cylindrical part 13 while the collection bag 20 is fixed to the cylindrical part 13. In FIG. 5, the bundle members 25a and 25b are used for binding.

  Next, the middle part of the two binding parts is cut, and the part in which the dust D is accommodated is separated as shown in FIG. The separated part is conveyed by the carriage 12 and discarded in a state of being accommodated in the storage box 10.

  As a result, only the remaining portion 20 a of the collection bag 20 remains in the cylindrical portion 13. Since the lower part of the residual portion 20a is bound by the binding member 25a, the discharge port 13a of the cylindrical portion 13 is closed by the residual portion 20a. For this reason, it can prevent that the dust adhering to the inner surface of the hopper 7 or the cylinder part 13 is scattered from the discharge port 13a.

  Next, the fixing band 23 in FIG. 11 is removed to obtain the state shown in FIG. At this time, the remaining portion 20 a of the collection bag 20 is held by the cylindrical portion 13 with only the string 21.

  Next, as shown in FIG. 13, a new collection bag 20 ′ is prepared, and this new collection bag 20 ′ is placed on the outer periphery of the cylindrical portion 13 with a string 21 ′ so as to cover the remaining portion 20a of the old collection bag. Install.

  Subsequently, the string 21 of the remaining portion 20a is loosened over the new collection bag 20 ', and the remaining portion 20a is removed from the tube portion 13 and collected in the new collection bag 20' as shown in FIG.

  Next, as shown in FIG. 15, the fixing band 23 is attached to the cylindrical portion 13, and the new collection bag 20 ′ is firmly fixed to the cylindrical portion 13.

  Finally, as shown in FIG. 16, the new collection bag 20 ′ attached to the cylinder portion 13 is stored in the storage box 10, whereby the setting of the new collection bag 20 ′ is completed and the state returns to the state of FIG. 4. .

  According to the embodiment described above, since the collection bag 20 is a bottomed bag, the binding portion at the bottom of the collection bag is opened by the weight of dust as in Patent Document 1, and the dust in the bag is scattered and exposed. There is nothing to do. Further, since the collection bag 20 has a constant capacity and the amount of dust D in the collection bag 20 is visible through the storage box 10, the collection bag 20 does not contain too much dust D. Can be prevented from being damaged. Moreover, since the capacity | capacitance of the collection | recovery bag 20 is more than the capacity | capacitance of the storage box 10, there exists an excess part in the opening side of the collection | recovery bag 20 which accommodated the dust D, and a bundling operation | work can be performed in this part. Furthermore, since the collection bag 20 can be easily attached and detached by the string 21, the replacement operation of the collection bag 20 is easy, and a dedicated cartridge as in Patent Document 1 is not required, so that the cost can be reduced. It becomes.

  17 to 19 show other examples of the storage box. The storage box 30 of FIG. 17 is made of a metal box in which a large number of through holes 31 are formed, and the internal collection bag 20 can be visually observed through the through holes 31. The storage box 40 in FIG. 18 is a metal box in which a vertically long slit 41 is formed, and the internal collection bag 20 can be visually observed through the slit 41. A storage box 40 ′ in FIG. 19 is provided with a door 42 that can be opened and closed on the side surface of the storage box 40 in FIG. 18. One end of the door 42 is rotatably supported by a hinge 43 and the other end is locked by a lock member 44. FIG. 20 shows a state where the door 42 is opened.

  For example, when the dust D is recovered after the table 11a is accidentally lowered to the lowest position (FIG. 9), the dust D is excessively contained in the recovery bag 20, and an excess portion that can be bound cannot be secured in the upper portion of the bag. However, when a door 42 that can be opened and closed is provided as in the storage box 40 'of FIG. 19, the binding work can be performed by opening the door 42 and lifting up the bags in the storage box 40'.

  In the dust collection procedure described above, the storage box 10 is lowered by the lifting and lowering means 11 before the dust D is stored in the recovery bag 20 (see FIG. 6), but after the dust D is stored in the recovery bag 20, The storage box 10 may be lowered by the lifting means 11. 21A to 21C are diagrams schematically showing a dust recovery procedure in this case. Hereinafter, this procedure will be briefly described.

  FIG. 21A (a) shows an initial set state in which the collection bag 20 is stored in the storage box 10 in a state where the collection bag 20 is attached to the cylindrical portion 13 by the string 21 and the fixing band 23.

  FIG. 21A (b) shows a state where dust D is stored in the hopper 7. In the state of FIG. 21A (b) before the dust D is discharged, the upper end of the storage box 10 is at a position above the lower end of the cylindrical portion 13.

  FIG. 21A (c) shows a step of opening the damper 8a and discharging the dust D stored in the hopper 7. FIG.

  FIG. 21A (d) shows a state in which the dust D is completely discharged and the dust D is stored in the collection bag 20. FIG.

  FIG. 21A (e) shows a state where the damper 8a is closed.

  FIG. 21A (f) shows a state where the elevating means 11 is driven and the storage box 10 is lowered.

  FIG. 21B (g) shows that the collection bag 20 is bound by the binding members 25a and 25b at two locations between the portion where the dust D is accommodated and the portion fixed to the cylindrical portion 13. The process which cut | disconnects the intermediate part of this is shown.

  FIG. 21B (h) shows a state where the portion of the collection bag 20 in which the dust D is stored is separated.

  FIG. 21B (i) shows a step of removing the fixing band 23 from the remaining portion 20 a of the collection bag 20 remaining in the cylinder portion 13.

  FIG. 21B (j) shows a process of attaching the new collection bag 20 'to the remaining portion 20a of the old collection bag and attaching the new collection bag 20' to the cylinder portion 13 with the string 21 '.

  FIG. 21B (k) shows a state where the string 21 of the remaining portion 20a is loosened over the new collection bag 20 '.

  FIG. 21B (L) shows a state in which the remaining portion 20a is removed from the cylindrical portion 13 through the new collection bag 20 'and collected in the new collection bag 20'.

  FIG. 21C (m) shows a state in which the fixed band 23 is attached to the cylindrical portion 13.

  FIG. 21C (n) shows a process of storing the new collection bag 20 ′ in the storage box 10.

  In the present invention, various embodiments other than those described above can be adopted. For example, in the above-described embodiment, the storage box 10 is separate from the table 11a of the lifting means 11, but the storage box 10 and the table 11a may be integrated.

  Moreover, although the example which binds the collection | recovery bag 20 which accommodated the dust D in two places was given in the said embodiment (FIG. 10), it replaces with this and means by means, such as an adhesive tape, over the collection | recovery bag 20 over a fixed area | region. You may bundle continuously. In this case, what is necessary is just to cut | disconnect the intermediate part of the said area | region.

  In the above embodiment, the elevating means 11 using the pantograph mechanism 11b is taken as an example. However, the present invention is not limited to this, and for example, elevating means using a screw screw or the like may be employed.

  In the above-described embodiment, the example in which the collection bag 20 is fixed to the cylindrical portion 13 by both the string 21 and the fixing band 23 is described. You may fix to the cylinder part 13. FIG.

  In FIG. 19, the door 42 is provided only on one surface of the storage box 40 '. However, the door 42 may be provided on a plurality of surfaces of the storage box 40'.

  Moreover, although the example which formed the collection bag 20 from the transparent material was given in the said embodiment, the collection bag 20 does not necessarily need to be transparent. Even in the case of an opaque colored bag, it is possible to determine the amount of dust inside by the degree of swelling.

  Further, in the above-described embodiment, an example is given in which the storage box 10 is lowered by the lifting / lowering means 11 before the dust D is stored in the collection bag 20 or after the dust D is stored in the collection bag 20. The lowering of 10 may be performed both before and after collecting the dust. Further, the storage box 10 may be lowered stepwise over a plurality of times as needed, or may be lowered after being raised once.

DESCRIPTION OF SYMBOLS 1 Primary side housing 2 Secondary side housing 3 Filter 7 Hopper 8 Discharge valve 10, 30, 40, 40 'Storage box 11 Lifting means 12 Carriage 13 Cylindrical part 13a Discharge port 20, 20' Collection bag 20a Residual part 21 String 25a, 25b Bundling member 42 Door 100 Dust collector D Dust

Claims (5)

In a dust collecting apparatus that is equipped in a dust collector equipped with a filter and collects dust in the gas collected by the filter,
A hopper for temporarily storing the dust collected by the filter;
A cylindrical portion provided below the hopper and having a discharge port through which dust stored in the hopper is discharged;
A bottomed collection bag for storing dust discharged from the discharge port;
A storage box for storing the collection bag, the dust in the collection bag being visible, and
Elevating means for elevating the storage box;
With
The capacity of the collection bag is greater than or equal to the capacity of the storage box,
An attachment / detachment means for attaching / detaching the collection bag to / from the cylinder part is provided at the opening of the collection bag,
The collection bag is stored in the storage box in a state of being attached to the cylindrical portion by the attaching / detaching means, and is extended by lowering the storage box,
The lifting / lowering means lowers the storage box to a position where the collection bag extends and a region necessary for bundling is secured above the collection bag. In the dust collection device according to claim 1,
The dust collecting apparatus according to claim 1, wherein before the dust stored in the hopper is discharged, an upper end of the storage box is at a position equal to or higher than a lower end of the cylindrical portion. In the dust collection device according to claim 1 or 2,
The dust collecting apparatus, wherein the lifting means is provided on a movable carriage. In the dust collection device according to any one of claims 1 to 3,
The dust collection device, wherein the storage box includes a door that can be opened and closed on a side surface. A primary housing into which a dusty airflow is introduced;
A filter provided in the primary housing and filtering the dust-containing airflow;
A secondary housing that is adjacent to the primary housing and into which a clean airflow filtered by the filter is introduced;
A dust collecting device provided on the lower side of the primary housing;
In a dust collector equipped with
The dust collection device according to any one of claims 1 to 4, wherein the dust collection device is a dust collector.

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