Dust removal device

Abstract

To provide a dust removal device that achieves a sufficient cleaning effect even if it is a rotary type.SOLUTION: A dust removal device comprises a pair of upper and lower sprocket wheels, a carrying chain driven by the sprocket wheels, and a screen installed on the carrying chain and driven together with the carrying chain to remove dust from the waterway. Of the pair of upper and lower sprocket wheels, the upper sprocket wheel is provided in the atmosphere, and the lower sprocket wheel is immersed in the waterway. Pumping means for pumping up water is provided on an inner peripheral side of the screen, and the pumping means is opened vertically upward.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to the cleaning of a dust removal device for removing dust in a water channel.

Background Art

[0002] Conventionally, in the dust removal device of Patent Document 1, dust is captured on a fixed shelf provided in water, and a rake member for scraping the captured dust is provided. This rake member is driven by a conveying member and includes a water storage part for pumping up water. By spraying the water pumped up by this water storage part, the rake member itself is cleaned.

Prior Art Documents

Patent Documents

[0003] <统一格式后,

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the dust removal device of the above Patent Document 1 captures dust by a fixed shelf, and there is a problem that it cannot be applied to a rotary dust removal device in which a screen for dust collection rotates together with a chain.

[0005] The present invention has been made paying attention to the above problems, and an object thereof is to provide a dust removal device that achieves a sufficient cleaning effect even if it is rotary type. The above

Means for Solving the Problems

[0006] The present invention comprises a pair of upper and lower sprocket wheels, a carrying chain driven by the sprocket wheels, and a screen provided on the carrying chain and driven together with the carrying chain to remove debris from a waterway, wherein the upper sprocket wheel of the pair of upper and lower sprocket wheels is provided in the atmosphere, and the lower sprocket wheel is immersed in the waterway. Rather than the outer periphery of the screen to which dust adheres A water pumping means is provided on the inner circumference side of the screen, and the water pumping means is, Extending horizontally across the screen, The area vertically upward is open. It is equipped with a cup-shaped member, The pumping mechanism, which rotates together with the screen, passes over the upper sprocket wheel and inverts as it inverts, thereby discharging the water inside. That's what we decided. [Effects of the Invention]

[0007] Therefore, even rotary-type dust removal devices can perform thorough cleaning. [Brief explanation of the drawing]

[0008] [Figure 1] This is an overall diagram of the dust removal device in this application. [Figure 2] This is a vertical cross-sectional view of the screen. [Figure 3] This is a front view of the screen. [Figure 4] This diagram shows the upper sprocket wheel and shaft. [Figure 5] This is a partial cross-sectional view of the shaft in the upper sprocket wheel. [Figure 6] This is a diagram showing the cleaning of the screen. [Figure 7] This is a partial cross-sectional view of the area near the sprocket wheel in a modified example. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described below. [Embodiment 1] (Overall structure) Figure 1 is an overall diagram of the dust removal device in this application. The dust removal device 1 comprises a pair of upper and lower sprocket wheels 10 and 20, a screen 30, and a carrying chain 40.

[0010] The upper sprocket wheel 10 is located in the atmosphere and is rotated by the power of the power source 2 to drive the carrying chain 40. The lower sprocket wheel 20 is located in the water of the waterway 50 and is driven by the carrying chain 40. Each sprocket wheel 10 and 20 is supported by shafts 110 and 210, respectively.

[0011] The screen 30 is a planar mesh that is roughly perpendicular to the flow of the waterway 50 and removes floating debris in the waterway 50. This screen 30 is installed on the outer circumference of the carrying chain 40 so as not to interfere with each sprocket wheel 10, 20 when the carrying chain 40 engages with it.

[0012] Furthermore, the screen 30 is connected to the carrying chain 40 at both ends in the horizontal direction (both ends of the axes 110 and 210) (see Figure 3), and the screen 30 moves and rotates as the carrying chain 40 is driven and rotated. The upper sprocket wheel 10 is located in the atmosphere, and the lower sprocket wheel 20 is located in the water of the waterway 50.

[0013] The carrying chain 40 and screen 30 rotate clockwise in Figure 1, capturing debris on the upstream side of the waterway 50. The captured debris is removed into the atmosphere downstream. The screen 30 moves and rotates, alternating between water and air, thereby capturing and removing debris in the waterway 50.

[0014] Furthermore, a watering nozzle 60 (watering means) is provided on the inner circumference side of the carrying chain 40 and vertically below the upper sprocket wheel 10. This watering nozzle 60 receives water from a pump (not shown) and sprays water on the back side of the screen 30 to wash and remove dust and debris.

[0015] The carrying chain 40 engaged with the upper sprocket wheel 10 disengages and separates as it rotates. Accordingly, the screen 30 and the upper sprocket wheel 10 also separate.

[0016] Therefore, the water spray nozzle 60 is provided on the vertically lower side of the upper sprocket wheel 10, and the screen 30 after separating from the upper sprocket wheel 10 can be water-sprayed and washed from the inner peripheral side, thereby efficiently removing dust. In a rotary dust collector such as the present application, dust adheres to the outer periphery of the screen 30, so such water spraying from the inner peripheral side is suitable.

[0017] (Details of the screen) FIG. 2 is a vertical cross-sectional view of the screen 30, and FIG. 3 is a front view. FIG. 2 shows a state where the screen 30 is locked to the carrying chain 40. The screen 30 is rotatably connected to the carrying chain 40 near both end portions 31a and 31b (see, for example, FIG. 7) in the moving / rotating direction.

[0018] <着 Note that FIGS. 2 and 3 show views when the screen 30 moves from underwater to the atmosphere. Therefore, the lower side in FIGS. 2 and 3 is the vertically lower side (lower sprocket wheel 20 side).

[0019] As described above, the screen 30 is a net provided to be able to capture underwater dust, and has a frame 31 and a net body 32. In addition, a pumping member 300 (pumping means) capable of pumping water is provided on the inner peripheral side of the screen 30 (the inner peripheral side of the carrying chain 40), and pumps up and holds water when the screen 30 moves from underwater to the atmosphere.

[0020] The pumping member 300 is fixed to the vertically lower side of the frame 31 of the screen 30 and is a cup-shaped member that extends horizontally across the screen 30. The pumping member 300 has an opening on its vertically upper side, and water is pumped up and discharged at the opening 301. This allows the water inside the screen 30 to be discharged when it passes through the upper sprocket wheel 10 and inverts upside down.

[0021] (Details of the axle in the upper sprocket wheel) Figures 4 and 5 show the shaft 110 of the upper sprocket wheel 10. Figure 4(a) is a perspective view, and Figure 4(b) is an axial front view. Figure 5 is a partial cross-sectional view of the shaft 110. The upper sprocket wheel 10 has teeth 112, which engage with the carrying chain 40 to drive the carrying chain 40.

[0022] The shaft 110 is connected to a pair of upper sprocket wheels 10 at both ends and is rotatable together with these upper sprocket wheels 10. Furthermore, vertical plates 111 extending in the axial direction are provided on the outer circumference of the shaft 110.

[0023] The vertical plate 111 is a single plate-like member that rises toward the outer circumference of the shaft 110 and extends axially between a pair of upper sprocket holes 10. Furthermore, approximately triangular end plates 113 are provided at both axial ends of the vertical plate 111, and these end plates 113 are liquid-tightly connected to the vertical plate 111 and the shaft 110. On the other hand, the radially outer side of the vertical plate 111 is open, forming a vertical plate opening 114, which is the open end.

[0024] The vertical plate 111 in Embodiment 1 is provided on the outer circumferential surface of the shaft 110 at a position corresponding to the gap between the teeth 115 of the upper sprocket wheel 10. The position of the vertical plate 111 is not particularly limited as long as it does not interfere with other components during rotation.

[0025] (Water retention using vertical boards and screen cleaning) Figure 6 shows the cleaning of the screen 30. Figure 6(a) shows the pumping of water by the pumping member 300, and Figure 6(b) shows the discharge of water from the pumping member 300 and the retention of water by the vertical plate 111. For explanatory purposes, the end 113 of the vertical plate is omitted in Figure 6(b).

[0026] The pumped water is held by the pumping member 300 and moves vertically upward together with the screen 30 as the carrying chain 40 is driven. As the screen 30 passes the upper sprocket wheel 10, the pumping member 300 is inverted, and water is discharged from the opening 301 of the pumping member 300.

[0027] The water discharged from the pumping member 300 falls onto the shaft 110. Here, since the shaft 110 is provided with a vertical plate 111 and a vertical plate end 113, the discharged water falls onto this vertical plate 111. and vertical plate end 113 It is held in place by the vertical board 111. Therefore, the pumped water does not flow out unnecessarily. and vertical plate end 113 This will ensure efficient retention.

[0028] Subsequently, as the shaft 110 rotates, water is sequentially discharged from the opening 114 of the vertical plate 111 as the angle of the vertical plate 111 approaches horizontal, and all the water flows out when the vertical plate opening 114 is facing vertically downward from the horizontal (see Figure 6(b)). At this time, the carrying chain 40 disengages from the upper sprocket wheel 10 and the screen 30 and shaft 110 begin to separate (near area A in Figure 6(b)), causing water from the vertical plate 111 to be sprayed onto the inner circumference of the screen 30, and this water cleans the screen 30 from the inner circumference.

[0029] In this way, the vertical plate 111 makes it possible to hold and transport water up to the point where the separation between the screen 30 and the shaft 110 begins, allowing the screen 30 to be cleaned efficiently. If the vertical plate 111 is not provided, the water discharged from the pumping member 300 flows down vertically along the surface of the shaft 110 and does not contribute much to cleaning the screen 30. However, in this invention, the water is held by the vertical plate 111, so the screen 30 can be effectively cleaned with the pumped water.

[0030] In a rotary dust removal device like the one described in this invention, dust adheres to the outer circumference of the screen 30, so the effect of the present invention, which allows water to be sprayed from the inner circumference, is even more pronounced. In addition, when a separate water spray nozzle 60 is provided to clean the screen 30 as in this invention, the cleaning effect of the pumped water can be expected, so the capacity of the water spray nozzle 60 can be reduced. In particular, when water spraying is performed by pump drive, it is possible to reduce the power of the pump and save energy.

[0031] (effect) (1) A pair of upper and lower sprocket wheels 10, 20, A carrying chain 40 driven by sprocket wheels 10, 20, The system includes a screen 30 provided on a carrying chain 40, which is driven together with the carrying chain 40 to remove debris from the water channel 50. Of the pair of upper and lower sprocket wheels 10 and 20, the upper sprocket wheel 10 is provided in the atmosphere, while the lower sprocket wheel 20 is immersed in the water channel 50. A water pumping member 300 (pumping means) is provided on the inner circumference side of the screen 30, The pumping member 300 was designed to be open vertically upwards.

[0032] As the screen 30 passes over the upper sprocket wheel 10, it is reversed vertically. At this time, water is discharged from the opening 301 above the pumping member 300, and this water can wash away any debris adhering to the screen 300. Since the debris adheres to the outer circumference of the screen 30, the water is released and sprayed from the pumping member 300 located on the inner circumference, allowing for efficient removal of the debris.

[0033] (2) The system is equipped with a shaft 110 that rotates together with the upper sprocket wheel 10, and a vertical plate 111 is provided on the outer circumference of the shaft 110, with the vertical plate 111 extending in the axial direction of the upper sprocket wheel 10. To remove dust and debris adhering to the screen 30, it is desirable to spray water from the back of the screen 30. However, since the water from the pumping member 300 is released near the top of the upper sprocket wheel 10, it is difficult to supply water to the back of the screen 30. Therefore, by providing a vertical plate 111 on the outer circumference of the upper sprocket wheel 10, the water released from the pumping member 300 is temporarily held, and by gradually spraying the water as the upper sprocket wheel 10 and shaft 110 rotate, water can be efficiently sprayed to the back of the screen 30.

[0034] (3) A watering nozzle 60 (watering means) is provided on the inner circumference side of the carrying chain 40. By using it in conjunction with a pump-driven watering nozzle 60, the screen 30 can be cleaned more efficiently. In addition, since a certain amount of debris is removed from the screen 30 by water sprayed from the pumping member 300, the screen 30 can be cleaned even if the water sprayed by the pump-driven watering nozzle 60 is reduced. Therefore, energy can be saved by suppressing the pump output.

[0035] (modified version) Figure 7 is a partial cross-sectional view of the sprocket wheel area in a modified example. In Figure 7, the shape of the vertical plate provided on the shaft 110 is changed to vertical plate 111'. In the above-described embodiment 1, the vertical plate 111 was a plate that rose radially outward, but in the modified vertical plate 111', the radial tip portion is bent in the rotational direction of the shaft 110. This further improves the water retention effect of the vertical plate 111'.Alternatively, as shown in Figure 7, the vertical plate 111' may be positioned to correspond to the teeth 112 of the upper sprocket wheel 10. [Explanation of Symbols]

[0036] 1 Dust removal device 2 Power source 10 Upper sprocket wheel 20 Lower sprocket wheel 30 screens 31 slots 31a, 31b Both ends 32 Net 40 Carrying Chains 50 waterways 60 Sprinkler nozzle (watering means) 110 axis 111 Standing board 112 teeth 113 Standing board end 114 Standing board opening 115 Interdental spaces 210 axis 300 Pumping member (pumping means) 301 Opening

Claims

1. A pair of upper and lower sprocket wheels, A carrying chain driven by the aforementioned sprocket wheel, A screen provided on the aforementioned carrying chain and driven together with the carrying chain to remove debris from the waterway Equipped with, Of the pair of upper and lower sprocket wheels, the upper sprocket wheel is provided in the atmosphere, while the lower sprocket wheel is immersed in the waterway. In the aforementioned screen, a water pumping means is provided on the inner circumference of the screen, rather than on the outer circumference where dust and debris adhere. The pumping means comprises a cup-shaped member that extends horizontally across the screen and is open vertically upward. The pumping mechanism, which rotates together with the screen, passes over the upper sprocket wheel and inverts as it discharges the water from inside. A dust removal device characterized by the following.

2. In the dust removal device according to claim 1, It comprises a shaft that rotates together with the upper sprocket wheel, A vertical plate extending in the axial direction of the upper sprocket wheel is provided on the outer circumference of the shaft. The vertical plate temporarily holds the water released from the pumping mechanism near the top of the upper sprocket wheel, and sprays the water onto the back of the screen as the shaft rotates. A dust removal device characterized by the following.

3. In the dust removal device according to claim 1 or claim 2, The carrying chain is provided with a watering mechanism on its inner circumference. A dust removal device characterized by the following.

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