JP2023067511A - Dust collector for elevator - Google Patents

Abstract

To provide an elevator comprising an inexpensive space-saving type dust collector without the need for especially providing a dust collector, and without requiring piping therefor.SOLUTION: A part of an intermediate space formed in a pair of intermediate elevator case gaps is made to be a dust chamber. Then, in the intermediate space, a pipeline with a lower end made to face the dust chamber is erected, and an upper end of the pipeline is made to face an inside of a chevron-shaped partition plate inside an upper portion elevator case to form a dust sucking chamber from a guide plate and an upper portion elevator case inner wall inside the upper portion elevator case. A first sucking portion is provided on one side face of the upper portion elevator case for forming the dust sucking chamber, and a second sucking portion in communication with the inside of the chevron-shaped partition plate is provided on the one side face of the upper portion elevator case. These first and second sucking portions are communicated and continuously connected by an external duct.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates mainly to a bucket-type elevator, and more particularly to a dust collector for the elevator.

Elevators of this type are well known and consist of an upper elevator case, a lower elevator case and an intermediate elevator case positioned therebetween, in which pulleys are journaled respectively in the upper and lower elevator cases, and endless pulleys are provided between the pulleys. It is constructed by suspending a shaped bucket belt.

By the way, the elevator scoops up grains and other grains in the lower elevator case with a bucket, throws the grains in the upper elevator case with the bucket, and discharges them from the outlet of the upper elevator case. However, dust mixed in the grain is blown up as dust while the grain or the like is being lifted and conveyed. In particular, since a large amount of dust is generated when the granules are thrown, one end of the dust discharge duct is connected to the opening provided in the wall surface of the upper elevator case, and the other end is connected to the exhaust chamber of the grain dryer. Communicated (Patent Document 1), or the upper elevator cases of a plurality of elevators are connected in series with a dust discharge duct, and a common dust collector provided at the end of the dust discharge duct concentrates dust. It is also well known.
Furthermore, in the elevator connected to the cargo receiving hopper, the dust generated in the cargo receiving hopper is removed by using the opposing space (intermediate space) formed between the ascending elevator case and the descending elevator case as a dust exhaust duct. Patent Document 2 discloses a system in which dust is conveyed to a dust collector by a dust discharge pipe provided near an elevator case.
However, each of the above patent documents requires piping such as a dust discharge duct leading to a dust collector separate from the elevator, and the centralized dust collector is large and expensive.

Japanese Utility Model Laid-Open No. 54-166681 JP 2006-335491 A

Therefore, in view of the above problems, the present invention provides an elevator equipped with an inexpensive and space-saving dust collector that does not require a special dust collector or pipes for the dust collector. With the goal.

To achieve the above object, the present invention provides an elevator having a bucket belt stretched between an upper pulley pivotally supported in an upper elevator case and a lower pulley pivotally supported in a lower elevator case, wherein the bucket In an elevator in which two intermediate elevator cases are erected in parallel and through which the ascending and descending sides of a belt are separately inserted, and an intermediate space is formed between the two opposing intermediate elevator cases,
A part of the intermediate space is used as a dust collection chamber equipped with a filter and an exhaust fan, and a pipeline is erected in the intermediate space so that the lower end faces the inside of the dust collection chamber, and the upper end of the pipeline is , a granule thrown by the bucket belt on one side of the upper elevator case inside the upper elevator case. A guide plate for colliding objects is provided, a dust collection chamber is formed by the guide plate and the inner wall of the upper elevator case, a first suction port is provided on one side surface of the upper elevator case forming the dust collection chamber, and A second suction port communicating with the mountain-shaped partition plate is provided on one side surface of the upper elevator case, and the first and second suction ports are connected for communication by an external duct.

The dust collection chamber may be formed by covering the intermediate space with a panel in a substantially airtight manner, and a part of the panel may be used as a door.

A dust collection box may be provided at the bottom of the dust collection chamber.

A lower air passage may be provided vertically from the bottom of the dust collection chamber toward the lower elevator case.

According to the present invention, the dust generated when the granular material thrown by the bucket collides with the guide plate is guided to the dust collection chamber, while the upper end of the pipe having the lower end facing the dust collection chamber formed in the intermediate space is shaped like a chevron. Since it is located inside the partition plate, and the external duct communicates between the dust collection chamber and the inside of the mountain-shaped partition plate, the dust in the dust collection chamber passes through the pipe line from the external duct to the dust collection chamber. Since dust is collected by being introduced into the elevator, dust can be collected within the elevator without installing a large and expensive dust collector.

The dust collection chamber is formed by substantially airtightly covering a portion of the intermediate space between a pair of conventional intermediate elevator cases facing each other with a panel, so there is no need to form a dust collection chamber outside the elevator. Compact.

Further, dust can be easily collected by providing a collection box at the bottom of the dust collection chamber.

Furthermore, by installing the lower air passage vertically from the dust collection chamber, it becomes possible to collect dust generated in the lower elevator case at the same time.

1 is an overall perspective view of an elevator showing an embodiment of the present invention; FIG. FIG. 2 is an enlarged view of an upper elevator case in FIG. 1; FIG. 3 is a cross-sectional view of FIG. 2; FIG. 2 is an enlarged view of an intermediate elevator case in FIG. 1; FIG. 2 is an enlarged sectional view of the dust collection chamber in FIG. 1; It is a perspective view which shows the dust collection chamber in FIG. It is a perspective view showing a filter in the dust collection chamber. FIG. 4 is a cross-sectional view showing another embodiment of the present invention;

Embodiments of the present invention will be described below based on the drawings.
1 is an overall perspective view of a bucket-type elevator 1 showing an embodiment of the present invention, FIG. 2 is an enlarged view of the upper elevator case in FIG. 1, FIG. 3 is a sectional view of FIG. 2, and FIG. It is an enlarged view of an elevator case.
The elevator 1 comprises an upper elevator case 2, a lower elevator case 3 and an intermediate elevator case 4. In the upper elevator case 2, an upper pulley 6 supported by an upper shaft 5 is provided. , and a lower pulley 10 (see FIG. 8) supported by a lower shaft 9 are rotatably provided.

The intermediate elevator case 4 is provided between the upper elevator case 2 and the lower elevator case 3 . The intermediate elevator case 4 comprises an ascending-side elevator case 4a and a descending-side elevator case 4b that face each other in parallel. It is inserted through the case 4a and the descending elevator case 4b. A plurality of buckets 8 are attached to the bucket belt 7 at regular intervals. Inside the safety cover 11 provided outside the upper elevator case 2, there are provided a motor and a chain (none of which are shown) for driving the sprocket that is axially attached to the upper shaft 5, and thereby the bucket belt is operated. 7 is rotatably formed between the upper and lower pulleys.

The intermediate elevator case 4 is vertically divided into three parts, each of which is paired with an ascending side case and a descending side case facing each other in parallel in the vertical direction. That is, the upper part of the intermediate elevator case 4 is composed of an ascending elevator case 4a1 and a descending elevator case 4b1, and the lower part is composed of an ascending elevator case 4a3 and a descending elevator case 4b3. A descending elevator case 4b2 is provided. Joint flanges 12 are provided at the upper and lower ends of the ascending elevator case and the descending elevator case, and the intermediate elevator case 4 is formed by joining the flanges 12 to each other. Furthermore, the upper end of the intermediate elevator case 4 and the lower end of the upper elevator case 2 are connected by the flange 12, and the lower end of the intermediate elevator case 4 and the upper end of the lower elevator case 3 are connected by the flange 12, respectively. The entire elevator 1 is integrally formed by being joined.

A plurality of reinforcing stays 13 are provided in an intermediate space 14 formed between the ascending-side elevator case and each descending elevator case in the intermediate elevator case 4, and the lower ascending-side elevator case 4a3 and the descending-side elevator case 4a3 are provided. A dust collection chamber 15 is formed in the intermediate space 14 between the elevator case 4b3. The dust collection chamber 15 will be described below with reference to FIGS. 5 and 6 as well.

A front panel 16 is provided on the front side of the dust collection chamber 15 (in this embodiment, the side on which the safety cover 11 is provided), a rear panel 17 is provided on the rear side, and a top panel 18 is provided on the top side, Further, a collection box 19 is provided at the bottom, which can be put in and taken out from the front side, so that the dust collection chamber 15 is formed in a substantially airtight manner. A filter shelf 20 is provided in the dust collection chamber 15, and a filter (filter) 21 is inserted through a hole 20a provided in the filter shelf 20 and installed. The filter 21 consists of a filter cloth 21a and a retainer 21b which holds the filter cloth 21a. (See FIG. 7). Further, an air nozzle 22 is provided on the collar portion 21c, the tip of which faces the inside of the retainer 21b, and high-pressure air is intermittently jetted from an air source (not shown) to remove dust adhering to the filter cloth 21a. It can be dropped into the collection box 19 .

A suction type exhaust fan 23 is provided on the upper part of the front panel 16, and the front panel 16 between the exhaust fan 23 and the collection box 19 serves as a door 16a. As a result, when the door 16a is closed, the inside of the dust collection chamber 15 is formed in a substantially airtight state. The lower end of the pipe line 24 for supplying the dust generated in the upper elevator case 2 to the dust collection chamber 15 faces the bottom of the dust collection chamber 15 . That is, the conduit 24 penetrates the filter shelf 20 and the top panel 18 of the dust collection chamber 15 and extends upward in the intermediate space 14 so that its upper end faces the upper elevator case 2. be erected.

Located in the upper elevator case 2 and directly below the upper pulley 6, a mountain-shaped partition plate 25 is provided with its crest direction facing the axial direction of the upper shaft 5. As shown in FIG. The mountain-shaped partition plate 25 extends upward from the inner walls of the ascending-side elevator case 4a1 and the descending-side elevator case 4b1 on the upper side of the intermediate elevator case 4, that is, the sidewalls on the intermediate space 14 side. sandwiched between the ascending and descending bucket belts 7 and formed between the front wall and the rear wall of the upper elevator case 2; It is provided isolated from the space.

Above the discharge portion 2a of the upper elevator case 2, a guide plate 26 is provided for guiding the particles thrown from each bucket 8 toward the discharge portion 2a. The lower portion of the guide plate 26 is inclined toward the outside of the upper elevator case 2 , and a dust collection chamber 27 is formed by being surrounded by the guide plate 26 and the inner wall of the upper elevator case 2 . . A dust suction port 27 a for introducing dust into the dust suction chamber 27 is formed near the lower end of the guide plate 26 . Furthermore, while a first suction port 28 is provided on the front wall or the rear wall of the upper elevator case 2 forming the dust collection chamber 27, the front wall or the rear wall of the upper elevator case 2 on the side where the first suction port 28 is provided A second suction port 29 is formed in the rear wall (on the same side as the first suction port 28) and communicates with the mountain partition plate 25. The first suction port 28 and the second suction port 29 are connected to the upper elevator case. 2 (same side as the first suction port 28).

As described above, according to this embodiment, in the upper elevator case 2, the dust generated when the granular material thrown by the bucket 8 collides with the guide plate 26 is discharged into the dust collection chamber 27 from the dust suction port 27a. , and through the first suction port 28, the external duct 30, and the second suction port 29, the dust is introduced into the dust collection chamber 15 by the pipe line 24. be. After being filtered by the filter 21 in the dust collection chamber 15 , the air is discharged out of the apparatus as clean air, and the dust falls from the filter 21 and is collected by the dust collection box 19 .

FIG. 8 shows another embodiment. In this embodiment, a lower pipe line 31 that hangs from the bottom of the dust collection chamber 15 into the lower elevator case 3 for removing dust generated when the bucket 8 scoops up particulate matter in the lower elevator case 3 . is provided. In this case, dust in the lower elevator case 3 can be effectively collected by the relatively short lower pipeline 31 . Further, by implementing this embodiment together with the previous embodiment, the dust generated in the elevator 1 can be collected more completely.

According to the present invention, the intermediate space of an existing elevator can be used to provide a dust collection chamber, and the dust generated in the upper elevator case can be efficiently transported and collected. Can be used as a dust device.

1 elevator 2 upper elevator case 3 lower elevator case 4 intermediate elevator case 5 upper shaft 6 upper pulley 7 bucket belt 8 bucket 9 lower shaft 10 lower pulley 11 safety cover 12 flange 13 stay 14 intermediate space 15 dust collection chamber 16 front panel 17 back Panel 18 Upper panel 19 Collection box 20 Filter shelf 21 Filter 22 Air nozzle 23 Exhaust fan 24 Pipe line 25 Angle partition plate 26 Guide plate 27 Dust collection chamber 28 First suction port 29 Second suction port 30 External duct 31 Lower pipe line

Claims (4)

An elevator in which a bucket belt is stretched between an upper pulley pivotally supported in an upper elevator case and a lower pulley pivotally supported in a lower elevator case, wherein the ascending side and descending side of the bucket belt are separated. In an elevator in which two interposed intermediate elevator cases are erected in parallel and an intermediate space is formed between the two opposing intermediate elevator cases,
A part of the intermediate space is used as a dust collection chamber equipped with a filter and an exhaust fan, and a pipeline is erected in the intermediate space so that the lower end faces the inside of the dust collection chamber, and the upper end of the pipeline is , a granule thrown by the bucket belt on one side of the upper elevator case inside the upper elevator case. A guide plate for colliding objects is provided, a dust collection chamber is formed by the guide plate and the inner wall of the upper elevator case, a first suction port is provided on one side surface of the upper elevator case forming the dust collection chamber, and 1. A dust collector for an elevator, wherein a second suction port communicating with said angular partition plate is provided on one side of an upper elevator case, and said first and second suction ports are connected to each other by an external duct. 2. A dust collector for an elevator according to claim 1, wherein said dust collection chamber is formed by covering said intermediate space with a panel in a substantially airtight manner, and a part of said panel serves as a door. 3. A dust collector for an elevator according to claim 2, wherein a dust collection box is provided at the bottom of said dust collection chamber. 3. A dust collector for an elevator according to claim 2, wherein a lower air passage is vertically provided from the bottom of said dust collecting chamber toward said lower elevator case.

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