Cleaning apparatus and cleaning method

Abstract

To provide a cleaning device that can clean the frame of a dust removal device without lifting the frame or setting up scaffolding. [Solution] The cleaning apparatus of the present invention is The screen 140 is capable of collecting and removing dust and debris from the water, and the dust removal device 100, which moves a pair of continuous tracks 120, 120 that detachably support the screen 140 around the main body 200, is equipped with a detachable cleaning device 1. A fluid discharge pipe 10 discharges the supplied fluid toward the body 200 of the dust removal device 100, An attachment 20 is configured to be detachably attached to a pair of continuous tracks 120, 120 and supports the fluid discharge pipe 10, The system comprises a carrier including a pair of continuous tracks 120, 120 for moving the supporting attachment 20.

Description

Technical Field

[0001] The present invention relates to a cleaning device and a cleaning method.

Background Art

[0002] Dust and dirt float in water such as rivers or seas from which factories and the like draw water. If dust and dirt enter the facilities of factories and the like, it may cause serious equipment troubles, so removal of dust and dirt from the water to be drawn is required. For example, in a power plant where clean water is required, the requirement standards for removing dust and dirt from the water to be drawn are extremely high.

[0003] Therefore, various devices have been conventionally proposed as means for removing dust and dirt floating in water. The types of dust and dirt are various, such as wood chips, paper scraps, waste plastic, domestic garbage, or aquatic organisms such as grass, algae, or jellyfish. Generally, after removing large dust and dirt with a coarse screen, a dust removal device using a fine screen is used to remove small dust and dirt.

[0004] A dust removal device known as a means for removing dust and dirt floating in water is a type of dust removal device equipped with a rotary screen. The dust removal device of the type equipped with a rotary screen has a structure in which a chain with a screen attached is stretched between a pair of wheels arranged vertically and circulated. Then, as the chain stretched between the vertically arranged wheels circulates up and down in the water channel, the screen also circulates to collect dust and dirt in the flowing water. The dust and dirt collected by the screen are usually lifted to the upper part of the dust removal device in accordance with the circulation of the screen, discharged outside the device there, and separately disposed of.

[0005] Patent Document 1 shows an example of a dust removal device equipped with a rotary screen. The dust removal device disclosed in Patent Document 1 is a type of dust removal device that rotates a screen by a sprocket arranged at the upper part.

[0006] Because the dust removal equipment, which removes floating debris from water, is constantly submerged in water, a large amount of debris and shellfish adheres to the frame that supports components such as screens and sprockets. To perform maintenance such as rust-preventive painting on the dust removal equipment, the long frame of the dust removal equipment is lifted and laid on its side in a work area on the ground, after which a person cleans it using a high-pressure washer. In cases where lifting is difficult due to the installation specifications of the dust removal equipment, scaffolding is erected and a person cleans it using a high-pressure washer. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Japanese Utility Model Publication No. Showa 51-136635 [Overview of the Initiative] [Problems that the invention aims to solve]

[0008] The lifting of the dust removal device frame and the installation of scaffolding are labor-intensive tasks, so it is desirable to omit these tasks. Therefore, the present invention aims to provide a cleaning device that can clean the frame of a dust removal device without lifting the frame or installing scaffolding. [Means for solving the problem]

[0009] The cleaning apparatus of the present invention is A screen is capable of collecting and removing dust and debris from the water, and a pair of continuous tracks that detachably support the screen are moved in a circular motion around the main body of the dust removal device, and a detachable cleaning device is provided for the device. A fluid discharge pipe that discharges the supplied fluid toward the body of the dust removal device, An attachment that is detachably configured to attach to a pair of continuous tracks and supports a fluid discharge pipe, It comprises a carrier including a pair of endless tracks for moving a supporting attachment.

[0010] The fluid discharge pipe comprises a first fluid discharge pipe and a second fluid discharge pipe, which are positioned on either side of the main body.

[0011] The fluid discharge pipe is A header pipe through which fluid flows, The header pipe is equipped with multiple discharge nozzles arranged along the direction of fluid flow on its side, The fluid is discharged from the discharge nozzle.

[0012] The direction of the discharge nozzle can be adjusted by changing the angle at which the fluid discharge pipe is supported by the attachment.

[0013] The carrier can switch between forward and reverse rotational movement on a pair of continuous tracks.

[0014] The attachment is, A support structure supported by an endless track, It comprises a clamp that is supported by a support and secures a fluid discharge pipe.

[0015] The cleaning method of the present invention is The dust removal device moves along its structure, causing the fluid to collide with the structure and remove any deposits adhering to it. [Effects of the Invention]

[0016] According to the present invention, a cleaning device is provided that can clean the frame of a dust removal device without lifting the frame of the dust removal device or setting up scaffolding. [Brief explanation of the drawing]

[0017] [Figure 1] This is a perspective view showing a dust removal device to which a cleaning device according to an embodiment of the present invention is attached. [Figure 2] This is a perspective view showing a configuration in which a cleaning device according to an embodiment of the present invention is installed. [Figure 3]It is a diagram showing a cleaning device according to an embodiment of the present invention. (a) is a front view of the cleaning device, (b) is a plan view of the cleaning device, and (c) is a right side view of the cleaning device. [Figure 4] It is a diagram showing the cleaning operation of the cleaning device according to an embodiment of the present invention. (a) is a front view of the dust removal device to which the cleaning device is attached, and (b) is a right side view of the dust removal device to which the cleaning device is attached. [Figure 5] It is a diagram showing a modified example of the cleaning device according to an embodiment of the present invention. (a) is a front view of the cleaning device, (b) is a plan view of the cleaning device, and (c) is a right side view of the cleaning device.

Mode for Carrying Out the Invention

[0018] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The cleaning device 1 according to the present embodiment is configured to be detachable from a chain 120 as an endless track after removing a screen 140 of a dust removal device 100. According to the cleaning device 1, it is possible to clean the frame 200 as the body of the dust removal device 100 without performing a lifting operation or a scaffolding installation operation on the frame 200 of the dust removal device 100. The upstream and downstream in the water flow direction F are specified by the direction of the water flow. Also, the water flow direction F is orthogonal to the vertical direction V.

[0019] [Dust removal device 100: Refer to FIG. 1] The dust removal device 100 is installed in the middle of a waterway that draws water from a river or the sea, etc., and collects dust floating in the water. As shown in Figure 1, the dust removal device 100 includes a pair of chains 120, 120 that detachably support the screen 140 and move the screen 140 in a circular motion, an upper wheel 131 and a lower wheel 132 around which the chains 120 are wrapped, and a drive device 110 that rotates the upper wheel 131 to move the chains 120 in a circular motion around the frame 200. The dust removal device 100 also includes a screen 140 for collecting dust and debris, a housing 150 on which the drive device 110 is installed and which supports the upper wheel 131, and a frame 200 that supports the housing 150 and the lower wheel 132.

[0020] The chain 120 is constructed by connecting multiple links 122 in an endless manner. Each link 122 is provided with a mounting hole 122A into which a support member for supporting the screen 140 is inserted.

[0021] The drive unit 110 has a general configuration for rotationally driving the upper wheel 131, and includes, for example, an electric motor that generates rotational driving force, a drive sprocket wheel fixed to the drive shaft of the electric motor, and a drive chain wrapped around the drive sprocket wheel and the upper wheel 131. The upper wheel 131 around which the drive chain is routed is rotated together with the lower wheel 132 around which the chain 120 is routed by the rotational drive of the electric motor of the drive unit 110. The electric motor of the drive unit 110 is capable of forward and reverse drive, making it possible to move the chain 120 in both directions. The chain 120 functions as a carrier for moving the attachment 20 up and down.

[0022] In this embodiment, sprocket wheels with teeth on their outer circumference are used as the upper wheel 131 and the lower wheel 132, and a carrying chain is used as the chain 120. The configuration of the upper wheel 131 and lower wheel 132 is not limited to this, and any structure that drives the chain 120 used is acceptable. Furthermore, the chain 120 only needs to be one that can be rotated by the upper wheel 131 and lower wheel 132 with the screen 140 attached, and may be a roller chain or the like.

[0023] The screen 140 is formed by supporting a long, horizontal screen (wire mesh) with a bucket section in an endless manner using a pair of chains 120, 120, thereby creating one large screen. The screen 140 according to this embodiment is referred to as, for example, a traveling screen.

[0024] The screen 140 is stretched between a pair of chains 120, 120 and is positioned perpendicular to the water flow direction F. As the chains 120 move in a circular motion, the screen 140 moves in the vertical direction V, and is configured to fold over the upper wheel 131 and the lower wheel 132 as it moves in a circular motion.

[0025] The housing 150 is joined to the frame 200 and installed at floor level FL, which is higher than the water surface. A spray nozzle (not shown) is provided inside the housing 150, and water discharged from the spray nozzle collides with the screen 140, removing debris from the screen 140. In other words, the screen 140 collects debris when submerged in water, and as it moves through the area of ​​the housing 150 after being removed from the water, the debris is removed by the spray nozzle. The removed debris is then collected and disposed of. The spray nozzle is configured to be reusable in the cleaning device 1 described later.

[0026] Frame 200 is installed in the waterway in an upright position, with the portion below the water surface submerged in water. A large amount of debris and shellfish, for example, that passes through the mesh of screen 140, adheres to the submerged portion of frame 200. To remove the debris and shellfish adhering to frame 200, washing device 1 is attached to the debris removal device 100. Hereinafter, the debris and shellfish adhering to frame 200 will be referred to as attached material G.

[0027] [Cleaning device 1: See Figures 2, 3, and 4] The cleaning device 1 is attached to a pair of chains 120, 120, and the drive device 110 causes the chains 120 to move in a circular motion, allowing the device to clean the frame 200 while moving vertically in the direction V along the frame 200. Before attaching the cleaning device 1 to the chains 120, the screen 140 is removed from the chains 120. Also, the water has been drained from the waterway, and the frame 200 is exposed to the outside air.

[0028] As shown in Figure 2, the upper wheel 131 is rotated by the drive unit 110 in the direction of arrow R, causing the cleaning device 1 attached to the upstream side in the water flow direction F to move from above to below in the vertical direction V in the direction of arrow D. The cleaning device 1 attached to the downstream side in the water flow direction F moves from below to above in the vertical direction V in the direction of arrow U. The rotational movement of the chain 120 in the direction of arrow R is called forward rotational movement, and the rotational movement of the chain 120 in the opposite direction to arrow R is called reverse rotational movement.

[0029] As shown in Figure 3, the cleaning device 1 includes a discharge pipe 10, which serves as a fluid discharge pipe for discharging water W as the supplied fluid toward the frame 200; an attachment 20 that supports the discharge pipe 10 and is configured to be attachable to the chain 120; and a water supply pipe 50 that is connected to the discharge pipe 10 and supplies water W. The cleaning device 1 is installed so as to span between a pair of chains 120, 120. In this embodiment, one attachment 20 is attached to each of the pair of chains 120, 120.

[0030] The discharge pipe 10 comprises a header pipe 11 through which water W flows, a flange 12 connected to a water supply pipe 50, and a plurality of discharge nozzles 13 arranged in two rows at predetermined intervals in the direction through which water W flows in the header pipe 11, from which discharge water WJ is discharged. The discharge nozzles 13 are elongated pipe-shaped, and discharge water WJ is discharged from the tips of the discharge nozzles 13. The tips of the discharge nozzles 13 are configured such that the discharge range of the discharge water WJ widens as the distance from the tip of the discharge nozzle 13 increases. For example, a fan-shaped nozzle or a full-cone nozzle may be used at the tip of the discharge nozzle 13. The discharge nozzles 13 in each of the two rows are provided in the header pipe 11 at predetermined angles to each other. The fluid supplied to the discharge pipe 10 may be, for example, steam.

[0031] The attachment 20 comprises a first support 21 that supports the clamp 23, a second support 22 connected to the first support 21 and into which a connecting pin 25 is inserted along with the mounting hole 122A of the link 122, and a clamp 23 that grips the header pipe 11. The split clamp 23 is fastened with fasteners such as bolts and nuts (not shown) to hold and secure the header pipe 11. The connecting pin 25 is inserted into the mounting hole provided in the second support 22 and the mounting hole 122A of the link 122 to secure the second support 22 to the chain 120. Note that the first support 21 and the second support 22 may be a single, integrated support.

[0032] The water supply pipe 50 includes a water flow pipe 51 through which water W supplied from a water supply source (not shown) flows, and a flange 52 connected to the flange 12 of the discharge pipe 10. Since a hose connecting to the water supply source is connected to the water flow pipe 51, it does not obstruct the movement of the cleaning device 1, which moves along with the circumferential movement of the chain 120.

[0033] As shown in Figure 4, the discharge pipe 10, which acts as the first fluid discharge pipe of the cleaning device 1 and discharges discharge water WJ from the upstream side in the water flow direction F toward the frame 200, moves along the frame 200 from above to below in the vertical direction V, causing the discharged water WJ to collide with the frame 200. This mainly removes deposits G attached to the upstream side of the frame 200. In addition, the discharge pipe 10, which acts as the second fluid discharge pipe of the cleaning device 1 and discharges discharge water WJ from the downstream side in the water flow direction F toward the frame 200, moves from below to above in the vertical direction V, causing the discharged water WJ to collide with the frame 200. This mainly removes deposits G attached to the downstream side of the frame 200.

[0034] By installing the cleaning devices 1 on both the upstream and downstream sides of the frame 200, so as to sandwich the frame 200, and moving them opposite each other, the upstream and downstream sides of the frame 200 can be efficiently cleaned. Furthermore, the drive unit 110 allows the direction of movement of the chain 120 to be switched between forward and reverse rotation, so the cleaning device 1 can be raised and lowered to continuously clean multiple passes.

[0035] [effect] The cleaning device 1 described above has the following effects. [First Effect] The cleaning device 1 is configured to be detachably attached to the chain 120 of a dust removal device 100, which is capable of collecting and removing dust and debris from water by moving a screen 140, which is detachably supported by the chain 120, in a circular motion. By causing the discharged water WJ discharged from the cleaning device 1 to collide with the frame 200 of the dust removal device 100 while the chain 120 is moved in a circular motion, the attached matter G on the frame 200 can be removed. In other words, the cleaning device 1 makes it possible to clean the frame 200, which is the main body of the dust removal device 100, without lifting the frame 200 or setting up scaffolding for the dust removal device 100.

[0036] [Second Effect] By installing the cleaning devices 1 on one side (upstream in the water flow direction F) and the other side (downstream) of the frame 200 of the dust removal device 100, and moving them opposite each other, the upstream and downstream sides of the frame 200 can be efficiently cleaned.

[0037] [Third Effect] The drive unit 110 allows the direction of movement of the chain 120 to be switched between forward rotation and reverse rotation, so that the cleaning device 1 can be raised and lowered to continuously clean multiple passes.

[0038] In addition to the above, it is possible to select or replace the configurations listed in the above embodiments, or to change them to other configurations as appropriate, as long as they do not deviate from the spirit of the present invention.

[0039] The cleaning device 1 of this embodiment includes one header pipe 11, and discharge water WJ is discharged from two rows of discharge nozzles 13 arranged from the header pipe 11 at a predetermined angle, but is not limited to this. As shown in Figure 5, the cleaning device 1 is equipped with three header pipes 11A, 11B, and 11C, and the discharge nozzles 13A, 13B, and 13C of each header pipe 11A, 11B, and 11C may discharge the discharge water WJ in different directions. In other words, the angle of the discharge water WJ discharged from each discharge nozzle 13A, 13B, and 13C may be changed arbitrarily. By adjusting the fixing angles of the header pipes 11A, 11B, and 11C, which are fixed by the clamp 23, the orientation of the discharge nozzles 13A, 13B, and 13C can be adjusted. Discharge nozzles 13A, 13B, and 13C, whose discharge angles can be changed to any angle, can adjust the angle at which the discharged water WJ impacts the frame 200 according to its shape. Therefore, even if the frame 200 has a three-dimensional shape in which the back side of the braces etc. is hidden, the discharged water WJ can reach the parts hidden by the braces etc., and all attached material G can be removed from the frame 200 without any loss. The attachment 20 supporting the header pipe 11 may use two attachments 20 for a pair of chains 120, 120, as in the embodiment, or it may use one attachment 20 that spans the pair of chains 120, 120, as shown in Figure 5.

[0040] Furthermore, while the discharge water WJ is discharged from multiple elongated pipe-shaped discharge nozzles 13 provided on the side surface of the cylindrical header pipe 11 of the discharge pipe 10, the discharge water WJ may also be discharged from holes provided on the side surface of the header pipe 11. [Explanation of symbols]

[0041] 1. Washing device 10, 10A, 10B, 10C Discharge pipes 11, 11A, 11B, 11C Header Pipes 12, 12A, 12B, 12C flanges 13, 13A, 13B, 13C Discharge nozzles 20 Attachments 21,21A,21B,21C 1st support 22 Second support 23 Clamp 25 connecting pins 50 Water supply pipes 51 Water distribution pipes 52, 52A, 52B, 52C flanges 100 Dust removal equipment 110 Drive unit 120 chain 122 links 122A Mounting Hole 131 Upper Wheel 132 Lower Wheel 140 screens 150 Housing 200 frames D, R, U arrows F Water flow direction FL Floor Level G Adhering substances V Vertical direction W water WJ discharge water

Claims

1. A screen is capable of collecting and removing dust and debris from the water, and a pair of continuous tracks that detachably support the screen are moved in a circular motion around the main body, and a detachable cleaning device is provided for the dust removal device, A fluid discharge pipe that discharges the supplied fluid toward the body of the dust removal device, An attachment configured to be detachably attached to a pair of the aforementioned endless tracks and supporting the fluid discharge pipe, A carrier including a pair of endless tracks for moving the supporting attachment, Washing device.

2. The fluid discharge pipe comprises a first fluid discharge pipe and a second fluid discharge pipe, which are arranged on either side of the main body. The cleaning apparatus according to claim 1.

3. The aforementioned fluid discharge pipe is A header pipe through which the aforementioned fluid flows, The header pipe is provided with a plurality of discharge nozzles arranged on its side surface along the direction of fluid flow, The fluid is discharged from the discharge nozzle. The cleaning apparatus according to claim 1 or 2.

4. The direction of the discharge nozzle can be adjusted by adjusting the angle at which the fluid discharge pipe is supported by the attachment. The cleaning apparatus according to claim 3.

5. The carrier is capable of switching between forward and reverse rotational movement of the pair of continuous tracks. The cleaning apparatus according to claim 3.

6. The aforementioned attachment is, A support structure supported by the aforementioned track, The device comprises a clamp supported by the aforementioned support and used to secure the fluid discharge pipe, The cleaning apparatus according to claim 1 or 2.

7. The dust removal device moves along its frame, causing the fluid to collide with the frame to remove any deposits adhering to it. Cleaning method.

Images