JP2005254156A - Grinding and sweeping apparatus of surface adherent matter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grinding and sweeping apparatus uniformly grinding and sweeping a wall surface having a pollutant attached thereto, and preventing splash of waste water containing the pollutant caused by grinding and sweeping. <P>SOLUTION: This grinding and sweeping apparatus 10 of surface adherent matter is equipped with a water jet device 14, a rotary brush body 15, an outer periphery cover 16 covering the outer periphery sides of the water jet device 14 and the rotary brush 15 and a mist splashing preventing brush attached at the outer periphery side of an opening, and a vacuum hose 17 connected to a suction device 33. By grinding a wall face 50 having pollutant attached thereto with a brush of the rotary brush body 15, using the apparatus 10, the pollutant is peeled off and removed by chipping with high pressure water jetted on the wall face 50 from a jet nozzle of the water jet device 14. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an apparatus for injecting high-pressure water onto the wall surface of an incinerator, for example, and cleaning and removing contaminants including dioxins attached to the surface of the wall.

Because the burner called clinker is fixed as a lump on the wall inside the furnace of the incinerator, and pollutants including dioxins generated during the incineration process adhere to the surface. When the incinerator is dismantled, it is necessary to remove the contaminants in advance by cleaning or abrading the wall surface.
Conventionally, the removal operation has been performed by a worker entering the furnace, holding a hose by hand, and blowing high-pressure water having a flow rate of about 50 liters / minute pressurized to about 10 to 100 MPa onto the wall surface. In addition, the wastewater to which contaminants including dioxins separated by the high-pressure water adhered was collected with a drainage pump or the like and sent to a wastewater treatment plant.
On the other hand, a small suspension device is introduced into a drainage channel with a small cross section, such as a temporary drainage channel in a concrete dam dike or a diversion channel in a thermal power plant, and the above-mentioned suspension device is controlled by remote control to perform the lifting work. A method has been proposed (for example, Patent Document 1).
5 (a) and 5 (b) are diagrams showing an example of the configuration of a conventional suspension device 60. The suspension device 60 has a pair of front and rear sides of a traveling device 61 traveling in the drainage channel A. FIG. The water jet spray nozzle devices 62 and 62 are attached to an elevating device 63 that is a combination of a motor and a feed screw. The water jet spray nozzle devices 62 and 62 are provided with high-pressure water installed outside the drainage channel A. The high-pressure water pressurized to 100 to 200 MPa supplied from the generator 64 via the flexible water supply pipe 65 is supplied to both sides of the drainage channel A from the plurality of injection nozzles 62b incorporated in the swivel head 62a. At the same time, it is sprayed onto the inner wall, and the drainage channel is cleaned by putting the concrete on the surface of the drainage channel A on which both side walls are adhered.
Japanese Utility Model Publication No. 1-90822

However, in the above-described manual method, the worker blows a large amount of high-pressure water onto the wall surface with a hose, so that the water soars and forms a mist, and the visibility is almost lost. In addition, since the water from the wall is mixed with fine fragments of clinker to which contaminants including dioxins are attached, the working environment is bad, and it is necessary to work with waterproof clothes and a dust mask. Furthermore, since the visibility is poor, the wall surface cannot be accurately irradiated with high-pressure water, so that there is a problem that the amount of water used increases and wastewater treatment costs increase.
Therefore, it is conceivable to clean or sharpen the wall of the incinerator using the conventional small-sized suspension device 60. However, the refractory bricks constituting the wall of the incinerator have lower strength and deteriorate than concrete. Therefore, in order to prevent the refractory brick from collapsing, it is necessary to lower the pressure of the high-pressure water and peel only the surface contaminants and clinker. However, since the wall of the incinerator has unevenness of 3 to 30 mm by the clinker, when the pressure of the high pressure water is lowered, the wall surface cannot be evenly cleaned, and deposits remain in the recesses. There was a possibility. In addition, since the above-described suspension device 60 merely hangs the wall surface, there is a problem in that wastewater to which contaminants including dioxins peeled off by the high-pressure water adhere is scattered to the device and the passage. .

  The present invention has been made in view of the conventional problems, and it is possible to uniformly clean the wall surface to which the pollutant adheres, and that the waste water containing the pollutant generated by the above-mentioned cleaning is scattered. It is an object of the present invention to provide a surface adhering apparatus that can prevent surface deposits.

The invention according to claim 1 of the present invention is an apparatus for rotating a jet nozzle to inject a high-pressure fluid onto a wall surface and scavenging deposits adhering to the wall surface, and grinding or hitting the wall surface. The outer periphery of the nozzle, the grinding means or the striking means, the opening is connected to the outer wall cover contacting the wall surface, and the vacuum hose communicating with the inside of the outer cover, And a suction device for sucking the contained fluid.
According to a second aspect of the present invention, in the surface adhering material polishing apparatus according to the first aspect, the grinding means is a rotating brush that rotates in conjunction with the jet nozzle.
According to a third aspect of the present invention, in the surface depositing material polishing apparatus according to the second aspect of the present invention, means for adjusting the protruding amount of the rotating brush is provided.
According to a fourth aspect of the present invention, in the surface adhering material polishing apparatus according to the second or third aspect, the rotating brush can be replaced.
According to a fifth aspect of the present invention, in the surface adhering material polishing apparatus according to any one of the first to fourth aspects, a means for urging the outer peripheral cover in the direction of the wall surface is provided.
According to a sixth aspect of the present invention, in the surface adhering material polishing apparatus according to any one of the first to fifth aspects, a seal member is attached to the wall surface side of the outer peripheral cover.
According to a seventh aspect of the present invention, in the surface adhering material polishing apparatus according to any one of the first to sixth aspects, the nozzle and the grinding means or the striking means are attached to the outer peripheral cover, and the outer peripheral surface is attached. A guide roller for guiding the cover along the wall surface is provided.

According to the present invention, an outer peripheral cover that includes a jet nozzle and means for grinding or striking a wall surface such as a rotating brush, covers the outer peripheral side of the nozzle and the grinding means or the striking means, and an opening is in contact with the wall surface. And a surface adhering material scouring device equipped with a suction device for sucking the fluid containing the adhering material in the outer peripheral cover, while grinding or striking the wall surface with adhering materials such as contaminants on the surface. The high pressure water from the jet nozzle is sprayed on the wall surface so that the surface deposits are peeled off and removed, so that the wall surface can be efficiently cleaned and the water hardly rises around. It becomes easy to work, and it is possible to sharpen the necessary points accurately.
Further, the surface deposits peeled off from the wall surface are collected by the suction device without leaking to the outside of the outer peripheral cover. Therefore, even when the deposit is a pollutant, the peeled pollutant does not scatter around and can be safely operated.

Hereinafter, the best mode of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing an outline of a wall surface cleaning apparatus according to the present embodiment. FIGS. 2 and 3 are diagrams showing the main configuration of the polishing apparatus according to the present invention used in the cleaning apparatus, FIG. 2 (a) is a front view, and FIG. 2 (b) is a cross-sectional view taken along the line AA. 3 is a cross-sectional view taken along line BB in FIG. In each figure, reference numeral 10 denotes a rotating shaft 13 rotated by an air motor 12 connected to an air hose 11, a water jet spraying device 14 and a rotating brush body 15 attached to the rotating shaft 13, and the water jet spraying device 14 rotating. A polishing device that is disposed so as to cover the periphery of the brush body 15 and has a cylindrical outer cover 16 that opens to the wall surface 50 side to be cleaned, and a vacuum hose 17 that communicates with the inside of the outer cover 16. The outer peripheral cover 16 includes a plurality of guide rollers 18a attached to the outer peripheral portion so as to protrude toward the wall surface 50, and a plate-like or frame-like attachment member 18 to which the air motor 12 or the rotary shaft 13 is attached is spring-loaded. It is attached via 18b. Reference numeral 17f denotes a filter interposed between the outer peripheral cover 16 and the vacuum hose 17.
Reference numeral 20 denotes a carriage 21 having wheels 21 a and stoppers 21 b, a lift 22 attached on the carriage 21, a lift 22 provided on the lift 22, and the attachment member 18 of the polishing apparatus 10. , A moving device comprising a lifting / lowering means 23 for sliding the scouring device 10 in the vertical direction and a horizontal moving means 24 for sliding the lifting / lowering means 23 in the direction of the wall surface 50; 31 a compressor for driving the air motor 12; Is a high-pressure water supply device that pumps high-pressure water to the water jet spraying device 14, 33 is a suction device connected to the vacuum hose 17, and 34 is a control box that is detachably attached to the moving device 20. The box 34 drives the air motor 12 and the water jet spray device 14. It is connected to the control device 35 lifts 22 and lifting means 23 of the mobile device 20 to actuate. Reference numeral 36 denotes a wastewater treatment device for treating the wastewater sucked by the suction device 33.

The air motor 12 is rotated by the compressed air sent from the compressor 31, is connected to a gear box 12b connected to the motor output shaft 12a, and is rotatable on a bottom surface 16a of the outer peripheral cover 16 via a bearing 16b. The attached hollow rotating shaft 13 is rotated to rotate the water jet spray device 14 and the rotating brush body 15. In addition, a high pressure hose 19 that is connected to the water jet injection device 14 and supplies high pressure water from the high pressure water supply device 32 to the water jet injection device 14 is disposed in the hollow portion of the rotary shaft 13. Yes.
The water jet spray device 14 is composed of a rod-shaped spray device main body 14b in which spray nozzles 14a and 14a are installed at both ends, and a flow path of high pressure water (not shown) is formed inside, from the high pressure water supply device 32. The high-pressure water pumped through the high-pressure hose 19 is jetted from the jet nozzles 14a, 14a to the wall surface 50 of the incinerator.
The rotating brush body 15 has brushes 15b and 15b attached to both ends of a rotating body 15a attached to the rotating shaft 13, and the brushes 15b and 15b are attached with deposits on the wall surface 50. Depending on the state, a wire brush or a polyester brush can be used. Specifically, the rotating body 15a is formed by bending a rod-like member so that a recess is formed at the center, and is attached to the rotating shaft 13 at the center of the recess. In addition, since the brush 15b is worn by friction with the wall surface 50, in the present example, the brush 15b is attached to the rotating body by an adjusting screw 15n screwed into a screw portion 15m provided in the rotating body 15a. It is made to attach to 15a. Thereby, the protrusion amount of the brush 15b can be adjusted by appropriately changing the screwing depth of the adjusting screw 15n. Further, by providing the adjusting screw 15n, when the brush 15b is worn more than a predetermined amount, it can be replaced, and the type of the brush is changed according to the type and state of the wall surface 50. You can also.

In addition, since the wall surface 50 of the incinerator has irregularities due to the clinker 52 fixed to the wall body 51, in this example, when the outer peripheral cover 16 is pressed against the wall surface 50 side of the incinerator by the spring 18b, The mist scattering preventing brush 16k is attached to the outer peripheral side of the opening of the outer peripheral cover 16 so that there is no gap between the wall surface 50 side and the outer peripheral cover 16. Thereby, it is possible to prevent the high-pressure water from the spray nozzle 14 a reflected by the wall surface 50 including the separated contaminant 53 and the clinker 52 debris from being scattered outside the outer peripheral cover 16. Since the brush 16k merely prevents the mist from scattering, a soft one such as nylon is preferable. In addition, it can replace with the said brush 16k, and generation | occurrence | production of mist can also be prevented even if it uses rubber | gum.
In this example, a guide roller 18a disposed on the wall surface 50 side of the mounting member 18 is further mounted on a roller support member 18c protruding from the peripheral edge of the mounting member 18 via a spring 18d, and is mounted on the wall surface 50 of the incinerator. Even when there are large irregularities, the polishing apparatus 10 can be moved along the wall surface 50 in close contact.

Next, when dismantling the incinerator, a method of cleaning the wall surface 50 by removing the contaminant 53 containing dioxins attached to the surface of the wall body 51 of the incinerator using the wall surface cleaning device will be described. To do. In this example, it is assumed that a worker (not shown) moves the moving device 20 manually and operates the control box 34 to perform the work.
First, the moving device 20 on which the scouring device 10 is mounted is placed in the incinerator to be disassembled, stopped at the position where the scouring operation is performed, and the stoppers 21b and 21b are lowered. Then, the lift 22 is raised and the lifting means 23 is operated to raise the scouring apparatus 10 to the vicinity of the ceiling surface (not shown) of the incinerator, and then the horizontal moving means 24 is operated to remove the mist scattering prevention brush 16k. The polishing apparatus 10 is pressed against the wall surface 50 until the tip side comes into close contact with the wall surface 50.
Next, the compressor 31 is operated to rotate the water jet injection device 14 and the rotating brush body 15, and the high pressure water supply device 32 is operated to supply high pressure water from the injection nozzle 14 a of the water jet injection device 14. It is ejected to the wall surface 50. In this example, since the incinerator is dismantled after cleaning, it is not necessary to remove all the clinker 52 adhering to the surface of the wall main body 51. Therefore, the pollutant 53 containing dioxins adhering to the surface of the clinker 52 is removed. Since it only needs to be removed, the pressure of the high-pressure water was set to 10 to 100 MPa.
Then, the surface of the wall surface 50 is ground by the brushes 15b and 15b that rotate in conjunction with the water jet spraying device 14 while moving the scouring device 10 downward by operating the lifting and lowering means 23 and spraying. With the high-pressure water sprayed from the nozzle 14a, the contaminant 53 is peeled off and removed. At this time, a part of the clinker 52 is also peeled off at the same time. The drainage containing the peeled contaminant 53 and the clinker 52 is discharged from the vacuum hose 17 without leaking from the outer peripheral cover 16 to the outside because the mist scattering prevention brush 16k is in close contact with the wall surface 50. And sent to the suction device 33. At this time, a relatively large piece of the clinker 52 fragments is captured by the filter 17f, so that the vacuum hose 17 can be prevented from being clogged and drainage can be performed efficiently.

Further, a mist scattering preventing brush 16k is attached to the outer peripheral cover 16 of the polishing apparatus 10, and the outer peripheral cover 16 is always pressed against the wall surface 50 by a spring 18b. Even when the reaction force is received from 50, the outer peripheral cover 16 can always be kept in close contact with the wall surface 50. Therefore, there is no generation of mist and not only the work is easy, but also the contaminant 53 containing dioxins attached to the surface of the clinker 52 debris does not scatter to the outside of the scouring device 10. The working environment can be greatly improved.
Further, in this example, since the guide roller 18a connected to the attachment member 18 by the spring 18d is provided, even when the wall surface 50 has large irregularities, the scouring device 10 can be smoothly moved downward. Can do.
When the cleaning operation to the lowermost part of the lifting / lowering means 23 is completed, the polishing apparatus 10 is once lifted to the uppermost part of the lifting / lowering means 23, and then the lift 22 is lowered to continue the cleaning work. Abrades 50 from top to bottom. Next, the stopper 21b is raised, the moving device 20 is pushed, the blasting device 10 is moved to the back side of the incinerator, and the wall surface 50 of the incinerator is scoured in the same manner as described above.
The waste water is sent from the suction device 33 to the waste water treatment device 36, where the pollutants including dioxins are separated and collected, and the waste water is rendered harmless by chemical administration or the like and discharged into a river or the like. .

  As described above, in the present embodiment, the outer periphery of the water jet spray device 14 and the brush 15b, and the outer periphery of the water jet spray device 14 and the brush 15b that covers the outer peripheral side, and the mist scattering prevention brush 16k is attached to the outer peripheral side of the opening. A contaminant 53 containing dioxins adhered to the surface using the surface adhering material cleaning device 10 provided with a cover 16 and a vacuum hose 17 communicating with the inside of the outer peripheral cover 16 and connected to a suction device 33. While the wall surface 50 is ground by the rotating brush 15b, the contaminant 53 is peeled off and removed by the high-pressure water sprayed from the spray nozzle 14a on the wall surface 50. It can be peeled off and removed. In addition, since the work is performed with the outer peripheral cover 16 to which the mist scattering preventing brush 16k is attached in close contact with the wall surface 50, mist is not generated, the work efficiency can be greatly improved, and the work safety is improved. Can be secured. In addition, since the cleaning water is used efficiently, the amount of supplied water is small, and the cost can be reduced.

In the above embodiment, the case where the contaminant 53 attached to the surface of the wall surface 50 of the incinerator is removed and the wall surface 50 is cleaned has been described. However, the clinker 52 fixed to the wall surface 50 such as cleaning of the incinerator is used. If the pressure of the high-pressure water is set to a high value of 50 to 100 MPa, the clinker 52 can be removed only through the surface of the refractory bricks constituting the wall body 51. The refractory brick is not damaged. At this time, if the pressure of the high-pressure water is appropriately adjusted according to the degree of deterioration (fragility) of the refractory brick and the surface of the refractory brick is delicately cleaned, damage to the refractory brick can be reliably prevented. it can.
Moreover, when the object to be polished is a concrete structure such as a sewage facility, the pressure of the high-pressure water is set as high as 100 to 200 MPa. Even if there are contaminants attached to the concrete surface, there is no mist scattering, so the work can be performed safely.
In the above example, the wall surface 50 is cleaned by using the water jet spray device 14 and the brush 15b at the same time. However, depending on the state of the wall surface 50, the above contaminants can be sufficiently removed even by cleaning with the water jet spray device 14 alone. It is possible to remove.

Moreover, in the said example, although the surface of the wall surface 50 was ground using the brush 15b of the rotating brush body 15, other grinding means, such as a cutter, may be used.
Alternatively, instead of the grinding means, for example, a hitting means 15T having a flange ring attached to the rotating body 15a as shown in FIG. 4 is attached to the rotary shaft 13, and the high pressure from the injection nozzle 14a is hit while hitting the wall surface 50. Water may be sprayed onto the wall surface 50 to remove and remove the contaminant 53.

In the above example, the worker moved the moving device 20, but if a traveling device that drives and controls the wheels 21a is provided so that the moving device 20 can be self-propelled, the cleaning operation can be performed remotely. It can be performed. Further, if the moving device 20 is provided with a means for rotating the lifting / lowering means 23 so that the scouring device 10 is rotated by 90 degrees, or the scouring device 10 can be installed upward, Not only the wall surface 50 but also the ceiling surface can be cleaned.
The scouring device 10 is not necessarily incorporated in the moving device 20, but if the operator can carry the scouring device 10 with a handle or the like, the moving device 20 cannot be used in a narrow place or a dent. Can be washed and suspended easily and safely.

  As described above, according to the present invention, it is possible to efficiently clean the wall surface with deposits attached to the surface, and it is possible to precisely clean the necessary points, so that the work efficiency is greatly improved. Can be improved. Even if the deposit is a pollutant, the pollutant does not scatter around, so the work can be performed safely.

It is a figure which shows the outline | summary of the wall surface washing apparatus which concerns on the best form of this invention. It is a figure which shows the principal part structure of the polishing apparatus of the surface deposit | attachment by this invention. It is sectional drawing which shows the principal part structure of the polishing apparatus of the surface deposit | attachment by this invention. It is a figure which shows the other structure of the polishing apparatus by this invention. It is a figure which shows the structure of the conventional suspension apparatus.

Explanation of symbols

10 Surface adhering device, 11 Air hose, 12 Air motor,
12a motor output shaft, 12b gear box, 13 rotating shaft,
14 water jet injection device, 14a injection nozzle, 14b injection device main body,
15 rotating brush body, 15a rotating body, 15b brush, 15n adjusting screw,
16 outer cover, 16k mist splash prevention brush, 17 vacuum hose,
17f filter, 18 mounting member, 18a guide roller, 18b spring,
19 high pressure hose, 20 moving device, 21 bogie, 21a wheel, 21b stopper, 22 lift, 23 lifting means, 24 horizontal moving means, 31 compressor,
32 High pressure water supply device, 33 Suction device, 34 Control box,
35 Control device, 36 Waste water treatment device, 50 Wall of the incinerator.

Claims (7)

  An apparatus for rotating a jet nozzle to spray a high-pressure fluid onto a wall surface and scavenging deposits adhering to the wall surface, comprising: means for grinding or striking the wall surface; and nozzle, grinding means or striking means An outer peripheral cover that covers the outer peripheral side and the opening abuts against the wall surface, and a suction device that is connected to a vacuum hose that communicates with the inside of the outer peripheral cover and sucks fluid containing deposits in the outer peripheral cover. A device for cleaning surface deposits characterized by the above.   2. The surface adhering material polishing apparatus according to claim 1, wherein the grinding means is a rotating brush that rotates in conjunction with the jet nozzle.   3. A surface adhering material polishing apparatus according to claim 2, further comprising means for adjusting a protruding amount of the rotating brush.   4. The surface adhering material polishing apparatus according to claim 2, wherein the rotating brush is replaceable.   5. The surface adhering material polishing apparatus according to claim 1, further comprising means for urging the outer peripheral cover in a wall surface direction.   The surface adhering material polishing apparatus according to any one of claims 1 to 5, wherein a seal member is attached to a wall surface of the outer peripheral cover.   7. The guide roller according to claim 1, wherein the nozzle and the grinding means or the striking means are attached to the outer peripheral cover, and a guide roller is provided for guiding the outer peripheral cover along the wall surface. Surface adhering device.

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