KR20100041272A - Scale removal machine - Google Patents

Abstract

PURPOSE: A descaling apparatus is provided to improve work environment by increasing the scale and/or dust collection rate through a dust filter unit. CONSTITUTION: A descaling apparatus comprises a grinding unit(100), a cyclone dust collecting unit(200), a dust collection filter unit(300), and a blower unit(400). The grinding unit includes a cover(110) with an open side contacting with a target surface and a grinder. The cyclone dust collecting unit is connected to the grinding unit and collects scales from the air passed through the grinding unit. The dust collection filter unit is connected to the cyclone dust collecting unit and collects dust from the air passed through the cyclone dust collecting unit. The blower unit compulsorily blows the air to the grinding unit, the cyclone dust collecting unit, and the dust collection filter unit.

Description

Descaler {SCALE REMOVAL MACHINE}

The present invention relates to a descaling device, and more particularly, to a descaling device capable of cleanly recovering dust including scales.

Most ships are made of steel plate, and the work of polishing the surface is required because the steel plate is connected by welding. As such, if the scales such as welding lines, welding sparks, corrosives, paints, etc. are not completely removed from the steel sheet, the coating may not be properly completed during painting or repainting of the steel structure, and the coating on the corrosion surface may fall off over time. The owners' complaints are caused.

Therefore, a tool such as a grinder is used as a way to descale the vessel. However, since a new groove may be generated on the surface of the structure due to the impact of the use of a tool such as a grinder, and a new scale may occur inside the groove, there is a problem in that the surface must be accurately polished by a skilled professional polisher. .

In order to solve this problem, a device has been devised to remove scales on the surface of the steel structure on the deck while the sand paper is rotated by the drive motor. For example, a vessel upper deck scale device named Rustbit 500 developed by a domestic company BC TAECHANG INDUSTRIAL CORP is easy to operate, as shown in FIG. However, such a device is not only heavy, but also has a lot of noise, which is inconvenient to use, and the sand paper wears out quickly, so the work is frequently interrupted and the work efficiency decreases, and great noise and dust powder are not recovered. Hassle is caused, and furthermore there is a problem of causing workers' respiratory diseases due to dust powder. Of course, during the scale operation with the descaling device, it is also possible to suck up the dust powder using a dust collector separate from the descaling device. Most of these dust collectors include the required blow amount of local exhaust in the design criteria. In this case, the local exhaust is a ventilation method in which harmful substances are collected and discharged before they are diffused into the workplace, and the required airflow amount of the local exhaust air is less than the required airflow amount for the entire ventilation. However, since most dust collectors are designed on the basis of industrial dust collectors excluding the ship's special situation, the capacity exceeds the required blow amount of local exhaust. Accordingly, there is a problem in that power consumption and load of the motor become large, and the wear of sand paper or wire brush which removes the scale is rapidly advanced.

In order to solve this problem, a vacuum grinder has been devised to recover the dust while removing the scale. As an example, a grinder developed by HAMMERMITH in the United States is shown in FIG. 2, and a grinder developed by TEESIN in Singapore is shown in FIG. 3. However, such a vacuum grinder is not suitable for use in descaling a ship's upper deck because it is not only bulky but also bulky in order to maintain a vacuum in a space where scale can be sucked.

The present invention has been made to solve the above problems of the prior art, and an object thereof is to provide a descaling device that can simplify the structure.

In addition, an object of the present invention is to provide a descaling device that can increase the collection ratio of scale and / or dust powder.

It is also an object of the present invention to provide a descaling apparatus capable of preventing the exhaust of scale and / or dust powder.

In addition, an object of the present invention is to provide a descaling device that is convenient to move.

The scale removing apparatus according to the present invention for solving the above problems is a polishing unit including a cover having an open surface and a polishing machine provided on the inside thereof in contact with the surface (hereinafter, the working surface) for removing the scale, and the polishing unit And a cyclone dust collector configured to communicate with the cyclone dust collector, and a dust collector filter installed to communicate with the cyclone dust collector, and to collect dust from the air that has passed through the cyclone dust collector. It characterized in that it comprises a blower for forcibly blowing air to the dust collecting filter. Therefore, the scale and the dust can be collected at the same time while removing the scale on the working surface, the coarse scale and fine dust can be sequentially removed to increase the collection rate.

In addition, the present invention is characterized by including a suction hood for sucking air from the blower and a discharge hood for discharging air to the cyclone dust collector. Therefore, the scale and dust generated by the scale operation can be included in the air more effectively, and the scale and dust collection rate can be increased because the scale and dust are removed from the air.

In addition, in the present invention, the cover is characterized in that it comprises a brush for sweeping the scale or dust on the surface in contact with the working surface. Therefore, the scale and dust are collected to prevent scale and dust from being left on the working surface, and the scale and dust collection rate can be increased by including the scale and dust in the blown air.

In addition, in the present invention, the cover is characterized in that it is provided with an elastic member for preventing the scattering of air on the surface in contact with the working surface. Therefore, the collection ratio of scale and dust can be raised.

In the present invention, the polishing machine is characterized in that it comprises a roughing machine and a finishing machine. Thus, scales of various shapes and sizes can be eliminated.

In addition, in the present invention, the dust collecting filter unit is characterized in that it comprises a case provided with the inlet / outlet, and a plurality of mesh-type filter is mounted between the inlet / outlet of the case through which the air passes. Therefore, the fine dust in the air is collected while passing through the dust collecting section, it is possible to increase the dust collection rate.

In addition, in the present invention, the blower is characterized in that it comprises a blower for forcibly blowing air, a motor for driving the blower, and a power transmission member for transmitting the power of the motor to the polishing unit. Therefore, the grinding machine and the blower can be driven by one motor, thereby simplifying the structure and reducing the weight as the number of parts decreases.

In addition, in the present invention, the descaling device further comprises at least one duct for communicating between the members so that air circulates along the polishing part, the cyclone dust collecting part, and the dust collecting filter part. Therefore, since the air is circulated through a certain flow path, it is possible to prevent the fine dust is discharged to the outside to harm the health of the operator.

In addition, in the present invention, the scale removing device further comprises a plurality of wheels provided to be movable. Therefore, the movement becomes easy.

The descaling device according to the present invention configured as described above has an advantage that it can be easily used as the weight is reduced as well as the structure because the cyclone dust collecting part, the dust collecting filter part, the blower part including the polishing machine.

In addition, the descaling apparatus according to the present invention collects the coarse scale in the cyclone dust collector, and then captures the fine dust in the dust filter, so that the ratio of scale and / or dust collection can be increased, thereby improving the working environment. The health of the worker can be promoted, and furthermore, since no separate workplace cleaning is required, there is an advantage of increasing work efficiency.

In addition, the scale removing apparatus according to the present invention, since the grinding machine, the cyclone dust collector, the dust filter unit, and the blower form a restricted flow path through a series of ducts, the scale and / Alternatively, dust can be prevented from being exhausted, thereby improving worker health.

In addition, the descaling device according to the present invention has the advantage that the wheel is provided because it is convenient to move more work efficiency.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 and 5 are a side view and an exploded view showing an example of a scale removing device according to the present invention. As shown in FIGS. 4 and 5, the descaling device removes the coarse scale from the polished part 100 that contacts the work surface to remove the scale of the work surface, and the air passing through the polished part 100. The cyclone dust collecting unit 200, the dust collecting filter unit 300 for removing fine dust in the air passing through the cyclone dust collecting unit 200, and the polishing unit 100 while driving the polishing unit 100 and the cyclone dust collecting unit ( 200 and a blower 400 for forcibly circulating air to the dust collecting filter 300.

The polishing unit 100 includes a cover 110 having an open lower portion in contact with the working surface, and a roughing machine 120 and a finishing machine 130 mounted on the cover 110 to remove the scale of the working surface. The cover 110 is provided with a suction hood 111 and a discharge hood 112 that suck / discharge air in a push-pull manner, and a suction hood 111 that is a push hood on the front side is provided. The rear side is provided with a discharge hood 112 that is a full hood, and is configured to not be affected by external flow between the suction hood 111 and the discharge hood 112. At this time, the suction hood 111 is preferably manufactured to allow the air to be introduced at a constant pressure and speed, it is preferable to be manufactured to minimize the suction force loss by suppressing the recirculation of the sucked air. That is, while the inlet of the suction hood 111 is formed to be narrow, the outlet of the suction hood 111 is to be formed in a wide surface, the air passing through the suction hood 111 is the cross section of the outlet side of the suction hood 111 As it acts on the pressure, the scale or dust is pushed in a straight line to prevent it from scattering, to suppress recirculation and to minimize the loss of suction pressure. On the other hand, the discharge hood 112 is formed similarly to the suction hood 111, the cross section of the discharge hood 112 is gradually narrowed toward the flow direction of the air so that the air inside the cover 110 can naturally escape. . The suction hood 111 sucks air from the blower 400, and the discharge hood 112 discharges the air inside the cover 110 to the cyclone dust collector 200. In addition, a brush 101 is provided to collect scale or dust on the lower front surface or the entire circumference of the cover 110. Is provided with an elastic member 102 to be in close contact with. Meanwhile, the roughing machine 120 is made of a high alloy tool steel in the form of a saw tooth, and the finishing machine 130 is made of a metal in the form of a wire brush. At this time, the finisher 130 is manufactured in the form of a wire brush in order to prevent it from being separated or bent even when rotated at a high speed, but may increase the use period. Of course, it is preferable that the roughing machine 120 and the finishing machine 130 are sequentially positioned in the moving direction of the polishing unit 100, and the roughing machine 120 is provided in front of the cover 110, and the cover 110 is provided at the same time. The rear end of the finishing machine 130 is provided. This allows the working surface to be relatively roughly polished by the roughing machine 120 and then relatively smoothly by the finishing machine 130.

The cyclone dust collector 200 includes a conical cylindrical body 210 in which a coarse scale is separated in air in a cyclone manner, and a dust container 220 in which coarse scale separated from the cyclone body 210 is collected. The cyclone body 210 is provided with an inlet 211 on the upper side, the outlet 212 is provided in the center of the upper surface, the air flows while forming a vortex along the inner circumferential surface of the cyclone body, while the scale freely falls in the air Falls into the dust bucket. Dust bin 220 is detachably installed in the lower portion of the cyclone body 210 so that the collected scale is empty.

The dust collecting filter unit 300 is provided between a case 310 having an inlet 311 and an outlet 312, and an inlet 311 and an outlet 312 inside the case 310 to filter out fine dust in the air. The main is made up of a plurality of filters 320 and a dust bin 330 in which dust filtered by the filters 320 falls. At this time, the filter 320 is applied to the mesh-type filter made of stainless steel that can be used semi-permanently if you only clean, Bag filter or HEPA filter that needs to be replaced over time Etc. can be applied in various ways. Of course, the number and size of the filters 320 may vary, but may be selected based on the mass of dust generated when the scale is removed based on the deck size of the upper portion of the vessel. However, because the ship's upper deck is relatively wide, the labor intensity of the operator should also be taken into account as the number and size of the filters increases, as dust collection increases.

The blower 400 transmits the blower 410 for forcibly feeding air, the motor 420 for driving the blower 410, and the power of the motor 420 to the roughing machine 120 and the finishing machine 130. Including a power transmission member (not shown), the motor 420 drives the roughing machine 120, the finishing machine 130, the blower 410 at the same time. The induction motor is used as the motor 420, so that the dust collection capacity can be controlled by controlling the rotation speed according to the type of scale. The rotary shaft 430 of the motor 420 is directly connected to the blower 410, while the rotary shaft 121 of the roughing machine 120 and the rotary shaft 131 of the finisher 130 are connected by a power transmission member. At this time, the power transmission member (not shown) is capable of transmitting a relatively large power, may be composed of a V-belt and a pulley with a low loss.

The polishing part 100, the cyclone dust collecting part 200, the dust collecting filter part 300, and the blowing part 400 are provided with a plurality of ducts 510, 520, 530 communicating with the members so as to form a series of flow paths through which air is circulated. After the connection, but the polishing unit 100, the cyclone dust collecting unit 200, the dust collecting filter unit 300 is arranged in a line, the blower 400 is provided above the polishing unit 100. The polishing part 100 and the cyclone dust collecting part 200 are directly connected to each other, and the discharge hood 112 of the polishing part 100 and the inlet 211 of the cyclone collecting part 200 are connected to each other. The cyclone dust collector 200 and the dust collecting filter 300 are connected to the first duct 510, and the first duct is disposed between the outlet 212 of the cyclone dust collecting unit 200 and the inlet 311 of the dust collecting filter 300. 510 is connected. The dust collecting filter unit 300 and the blowing unit 400 are connected to the second duct 520, and the second duct 520 is disposed between the outlet 312 of the dust collecting filter unit 300 and the inlet of the blower 410. Connected. The blowing unit 400 and the polishing unit 100 are connected to the third duct 530, and the third duct 530 is connected between the outlet of the blower 410 and the suction hood 111 of the polishing unit 100. do. The first, second, and third ducts 510, 520, and 530 are formed in various shapes according to the arrangement of the members, but preferably have the least flow resistance.

Preferably, the scale removing device configured as described above is provided with a plurality of wheels 600 so that an operator can easily move it, but is preferably provided on the opposite side to the polishing unit 100 which contacts the working surface. In addition, the descaling device may be provided with a control unit for operating while the operator moves directly, it may be provided with a control unit for operating in accordance with the input program in advance. At this time, when the worker is configured to operate while moving directly, it is preferable that a handle that can be grabbed by the worker is provided.

FIG. 6 is a view illustrating air flow in a portion of the descaling device of FIG. 4. The operation of the descaling device configured as described above will be described with reference to FIGS. 4 and 6.

When the motor 420 is operated, the blower 410 is operated to perform a descaling operation, and the roughing machine 120 and the finishing machine 130 are operated as power is transmitted by a power transmission member (not shown). Scale collection is done.

First, as the roughing machine 120 and the finishing machine 130 are rotated, the scale is removed by sweeping up the working surface, so that the scale or dust is collected by the brush 101, and the scale dust is the elastic member 102. At the same time to ensure that the cover 110 is in close contact with the cover 110. At this time, a relatively large scale is removed by the roughing machine 120, and a relatively small scale is removed by the finishing machine 130.

In addition, as the blower 410 is operated, air is pushed through the third duct 530 to the polishing unit 100, and the air is push-pull system and the discharge hood (111) in the suction hood 111 of the cover 110. 112, but the scale or dust is withdrawn inside the cover (110). The air containing the scale or dust flows into the inlet 211 of the cyclone body 210 and descends while rotating spirally along the inner circumferential surface of the cyclone body 210, while a relatively large scale in the air freely falls and the dust container 220 And then the coarse scaled air rises and exits the outlet 212 of the cyclone body 210. Air passing through the cyclone dust collector 200 is introduced into the inlet 311 of the case 310 through the first duct 510, the relatively small dust in the air as the air passes through the filters 320 all the filters After adsorbed to the 320, only the clean air exits the outlet 312 of the case 310. Of course, as time passes, fine dust adsorbed on the filters 320 may accumulate and fall into the dust container 330. The air passing through the dust collecting filter 300 is introduced into the blower 410 through the second duct 520, and is then pumped back to the polishing unit 100 through the third duct 530. While repeating such a process, the scale or dust is removed in the air, and the dust container 220 of the cyclone dust collector 200 and the dust container 320 of the filter dust collector 300 may be emptied from time to time according to the scale or amount of dust collected. .

The descaling device formed as described above has traditionally been dependent on the manual work of the descaling of ship decks in the shipbuilding industry. Since the descaling device can be operated and used by short-term training without using pre-treatment workers who are difficult to secure human resources, the efficiency of descaling work can be improved and the manpower cost can be reduced. It is possible.

In addition, since the descaling device drives the roughing machine, the finishing machine, and the blower by one motor, the motor may be momentarily overloaded while being excessively powered, thereby preventing the motor from being damaged. Since the inverter is converted into electric power, the electric power is gradually increased so that the rotational force of the motor can be properly adjusted.

In the above, the present invention has been described in detail by way of examples based on the embodiments of the present invention and the accompanying drawings. However, the scope of the present invention is not limited by the above embodiments and drawings, and the scope of the present invention will be limited only by the contents described in the claims below.

1 to 3 show various embodiments of a descaling apparatus according to the prior art.

Figure 4 is a side view showing an example of a descaling apparatus of the upper deck of the ship according to the invention.

5 is an exploded view showing a portion of the descaling device of the upper deck of the vessel of FIG.

FIG. 6 is a view illustrating air flow in a portion of a descaling device of the ship upper deck of FIG. 4. FIG.

Claims (9)

A polishing part including a cover having an open surface in contact with a surface (hereinafter referred to as a work surface) for removing scales and a polishing machine provided inside the cover; A cyclone dust collecting part installed to communicate with the polishing part and collecting the scale from the air passing through the polishing part; A dust collecting filter unit installed to communicate with the cyclone dust collecting unit and collecting dust from air passing through the cyclone dust collecting unit; And, And a blowing unit for forcibly blowing air to the polishing unit, the cyclone dust collecting unit, and the dust collecting filter unit. The method of claim 1, The cover includes a suction hood for sucking air from the blower and a discharge hood for discharging air to the cyclone dust collector. The method according to claim 1 or 2, The cover is a scale removing device characterized in that it comprises a brush for sweeping the scale or dust on the surface in contact with the working surface. The method according to claim 1 or 2, The cover is provided with an elastic member for preventing air from scattering on the surface in contact with the working surface. The method of claim 1, The grinding machine includes a roughing machine and a finishing machine. The method of claim 1, The dust collecting filter unit includes a case provided with an inlet / outlet, and a plurality of mesh-type filters mounted between the inlet / outlet of the case and through which air passes. The method of claim 1, The blower comprises a blower for forcibly blowing air, a motor for driving the blower, and a power transmission member for transmitting the power of the motor to the polishing unit. The method according to claim 1 or 2 or 7, The descaling device further comprises at least one duct for communicating between the members such that air circulates along the polishing part, the cyclone dust collecting part, and the dust collecting filter part. The method of claim 1, The descaling device further comprises a plurality of wheels provided to be movable.

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