KR101289086B1 - Apparatus and method for collecting dust in shot blasting system - Google Patents

Abstract

 The present invention relates to a dust collecting apparatus for a shot blasting equipment, having a predetermined receiving portion, a body including an inlet through which foreign matters, such as a scale of the shot blasting device, and an outlet through which the foreign matters are filtered out to discharge clean air, At least one or more predetermined intervals in the housing of the body, the filter for filtering foreign matters drawn out through the inlet, and a hair device installed inside the filter to shake off the foreign matters collected on the filter outer wall under a predetermined condition; A dust collector for sucking contaminants (dust) generated in the shot blasting process, including a pressure gauge for measuring the pressure inside the body and a controller for selectively sensing the pressure inside the body by the pressure gauge to drive the hairy device. To clean pollutants and release clean air to air Continuous process that can filter and collect pollutants at the same time by importing the polluted filter surface and collecting pollutants to prevent the filter from being blocked due to filter clogging during operation and stopping the continuous process due to filter import. As a dust collecting method required by the present invention, there is an effect of preventing the stopping of the dust collecting function.

Shot blast, Dust collector, Hairy device, Compressor, Manometer, Filter

Description

Dust collector and method for dust collection for shot blasting facilities {APPARATUS AND METHOD FOR COLLECTING DUST IN SHOT BLASTING SYSTEM}

1 is an understanding of the dust collector for a typical shot blasting installation;

2 is a filter maintenance understanding of the dust collector for a typical shot blasting installation;

3 is an understanding of the dust collecting apparatus for the shot blasting apparatus according to the present invention;

Figure 4 is an installation understanding of the dust collector for the shot blasting equipment according to the present invention;

5 is an assembly understanding of the dust collecting device hairs for the shot blasting equipment according to the present invention;

Figure 6 is an operation understanding of the hair portion of the shot blast dust collecting apparatus according to the present invention; And

7 is a flowchart illustrating a dust collecting method by the dust collecting device according to the present invention.

<Explanation of symbols for the main parts of the drawings>

1: dust collector 2: collector

3: inlet 4: outlet

5: air supply part 6: nozzle

7: filter 8: air hose

11: compressor 12: probe

21: cylinder 22: guide

23: fixing rod 24: connection guide

25: moving bar 26: support bar

27: Moving guide 28: Spring

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collector for collecting and purifying dust, which is a contaminant generated in a shot blasting facility, which is a device for removing scale on a product surface generated during the production of hot press forming products. In order to improve the performance of the filter to be collected, the present invention relates to a device for filtering the dust attached to the filter while grasping the condition of the filter, periodically performing a hairy work using high pressure air, and directly hitting the filter.

1 is an understanding of the dust collector for a typical shot blasting equipment, Figure 2 is a filter maintenance understanding of the dust collector for a typical shot blasting equipment, the conventional normal operation is that the blower is operated continuously if the polluted air flow in each process After passing through the suction port 3 of the lower part of the dust collector 1 by using the hood and the duct of the dust collector, the contaminants of the polluted air are attached to the filter 7 and the purified clear air is discharged. The air blowing method used in this short blasting process is a dropping device used for a general dust collector and uses a backwashing air as a kind of backwash dropping method. Particles deposited on the surface of the media by blowing compressed air from the air nozzle 6 to the venturi momentarily (1/10 second), attracting the surrounding air and causing a strong impact on the media or flowing air towards the media surface Compressed air is blown out by the pilot and diaphragm valves by blowing contaminants.Then, when the compressed air is weakened and it is repeatedly deposited on the surface of the media, the pressure of the media The large dust collector 1 has a problem of low dust collection efficiency due to large loss, and the filter 7 has a length of 4 m or more, so even in the case of high pressure compressed air, the compressed air pressure is weak in the lower part of the filter 7, so that the upper part is dropped. It is good, but the lower part is not dropped but is continuously deposited, which increases the pressure loss of the media, which causes a problem of low dust collection efficiency. The particulate contaminants deposited on the air filter (7) should be periodically cleaned. The method of cleaning the dust collector is to stop the blower of the dust collector (1) after stopping the continuous work process, so that there is no suction force of the dust collector (1). The method of dropping particulate contaminants to the bottom and dropping the filter 7 after blowing out the filter 7 by manual blown every corner of the filter 7 stops the process of continuous work due to the dust collector 1 import work. Problems to be taken and dust was scattered during cleaning after taking out the filter (7), there was a problem such as worker health, hygiene management.

In order to solve the problems as described above, the object of the present invention is a dust collecting device for a short blasting equipment configured to automatically operate according to the concentration of dust to clean the dust collecting device even if the operator does not perform by hand and It is to provide a dust collection method.

The present invention is to solve the above problems, when taking out the filter in the continuous shot blasting process can cause worker's health problems and the continuous operation of the equipment is suspended The function of filtering the foreign material flowing into the dust collector and the filter is imported, and the function of filtering the dust, the filtering status and the imported filter cleanliness is automatically controlled to control the operation of the device. Its purpose is to improve productivity, prevent product defects, and improve the working environment for workers.

In order to solve the above object, the present invention provides a dust collecting apparatus for a shot blasting facility, which has a predetermined receiving portion, an inlet through which foreign matters, such as a scale of the shot blasting device, and the foreign matter are filtered out. A body including a discharge port through which clean air is discharged, at least one or more intervals are installed in the housing of the body, and a filter for filtering foreign substances drawn out through the inlet, and installed inside the filter to be collected on the filter outer wall. Hairy device for shaking off the foreign matter under a certain condition, and a pressure gauge for measuring the pressure inside the body and a controller for sensing the pressure inside the body by the pressure gauge to selectively drive the hairy device do.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, if it is determined that the gist of the present invention may be unnecessarily blurred, detailed description thereof will be omitted.

Figure 3 is an understanding of the dust collecting apparatus for the shot blasting apparatus according to the present invention, Figure 4 is an installation understanding of the dust collecting apparatus for the shot blasting apparatus according to the present invention, Figure 5 is a dust collecting for the shot blasting equipment according to the present invention It is an assembly understanding of the apparatus hair part.

As shown in Figures 3 to 5, the dust collecting device according to the present invention, the air supply unit for working with the hair using the primary air is connected to the existing air line installed compressor (11) to create a high-pressure air Install. The compressor consists of a pressure gauge and a control valve, and the blower that blows dust while hitting the filter is provided with a guide 22 at the center of the filter 7 and a cylinder 21 at the top of the guide 22. ). The assembly rod 23 is connected to the front of the cylinder 21 and assembled, and the fixing rod 23 is fixed to the connection guide 24, and the moving bar 25 is inserted into the groove processed in the connection guide 24. Secure with pin to enable movement. The connecting rod (29) is located below the connecting guide (24) so that the upper part is completely fixed with the connecting guide (24), and the spring (28) is inserted from the lower part and the moving guide (27) is inserted into the moving guide (27). Assembling the support bar 26 in the groove processed in the upper portion of the support bar 26, the other end of the connecting bar (29) is connected to each other by linkage to the link structure having the structure as described above to form a link bar (29) ) Is composed of a plurality of assembly. It is composed of a filter cleaner having a controller for the operation of the device configured as described above.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

6 is an operation understanding of the hairs of the short blast dust collecting device according to the present invention, Figure 7 is a flow chart showing a dust collecting method by a dust collecting device according to the present invention.

As shown in FIG. 6, when the product is mounted on the shot blasting equipment and the desired processing time is set in order to remove the scale generated in the hot press forming product, the dust generated during the descaling operation in the shot blast Collected in the dust collector (1) installed in the rear stage, the dust is removed by the filter (7) installed in a large number of dust collector (1), only clean air goes out, dust generated during the short blast operation is dust collector (1) The difference in the flow of air occurs depending on the degree of burying in the filter (7) installed in the pressure of the dust collector (1) is different, the dust is used to control the dust collector.

As shown in FIG. 7, when the dust collection pressure is detected by the pressure gauge 12 and sent to the controller, when the pressure of the dust collector 1 is 50 mmAq or less by the controller, the air is passed through the filters 7 immediately to the outside. When the pressure detected by the pressure gauge 12 is 50 to 100 mmAq, when the high pressure air compressed in the air compressor 11 is introduced at high pressure through the control valve, the nozzle 6 of the pipe installed on the filter 7 is provided. Blowing in dust attached to the outer wall of the filter (7) while being introduced into the filter (7), when the pressure of the pressure gauge is less than 50mmAq operates to block the air from the compressor 11 to pass through the filter (7) If one of the air is sent to the outside, and the pressure detected by the pressure gauge 12 is 101 ~ 200mmAq, when the high pressure air compressed in the air compressor 11 is introduced at a high pressure through the control valve, Furnace of plumbing The moving bar 25 connected to the cylinder 21 by operating the cylinder 21 up and down while blowing dust attached to the outer wall of the filter 7 while being introduced into the filter 7 by the (6). The support bar 26 is repeatedly stretched and retracted, and at this time, the end of the movable bar 25 hits the inner wall of the filter 7 to separate dusts attached to the outer wall of the filter 7, and the air is injected at high pressure. When the pressure of the pressure gauge is 50mmAq or less, the control valve blocks the air from the compressor 11 to send the air passed through the filters 7 to the outside. If the pressure is 200mmAq or more, the dust attached to the filter 7 recognizes that the function of the filter 7 can be completely performed, and the shot blasting device during operation is stopped and the filter 7 is replaced. .

Obviously, there are many ways within the scope of the claims to modify these embodiments. In other words, there can be many other ways in which the invention may be practiced without departing from the scope of the following claims.

Therefore, according to the present invention, a continuous process due to filter clogging during operation as a facility that inhales pollutants (dust) generated in the shot blasting process to purify the pollutants from the dust collector and discharges clean air to the atmosphere. In order to prevent the filter from being imported after stopping the filter, the contaminated filter surface is imported and the contaminants are collected, so the dust collection method required in the continuous process that can simultaneously filter and collect the contaminants has the effect of preventing the stop of the dust collection function. have.

Claims (5)

In the dust collecting apparatus for a shot blast installation, A body having a predetermined accommodation portion, including an inlet through which foreign matters, such as a scale of the shot blasting device, and an outlet through which the foreign matter is filtered out and clean air is discharged; At least one filter is installed at a predetermined interval within the housing of the body and filters foreign substances drawn out through the inlet; A hair apparatus installed inside the filter to shake off foreign substances collected on the outer wall of the filter under a predetermined condition; A pressure gauge for measuring the pressure inside the body; And It includes a controller for selectively driving the hair device by sensing the pressure inside the body by the pressure gauge, The hairy device is, A fixed rod having a predetermined length extending into the filter; A plurality of moving guides inserted and fixed at equal intervals in a manner that the fixing rod is penetrated; A connection guide installed in such a manner that the fixing rod penetrates the upper portion of each of the movement guides; At least two moving bars installed to be rotatable outward from the connection guide; One end is coupled to the moving bar and the other end is rotatably coupled to the moving guide; A spring interposed between the movement guide and the connection guide; And And a cylinder installed on top of the fixed rod, the cylinder allowing the moving bar to shake off the inner wall of the filter by vertically flowing the fixed rod. delete The method of claim 1, And said controller selectively drives said cylinder in accordance with the pressure conditions of said manometer. It has a predetermined housing, the body including an inlet for introducing foreign matters, such as the scale of the shot blasting apparatus, the outlet including the outlet for filtering the foreign matter is discharged clean air, at least one or more installed in the receiving portion of the body at regular intervals A filter for filtering foreign matters drawn out through the inlet, a hairdressing device installed inside the filter to shake off foreign matters collected on the filter outer wall under a predetermined condition, a pressure gauge for measuring the pressure inside the body, and a pressure gauge for measuring the pressure inside the body. In the dust collecting method of the dust collecting apparatus for a shot blasting apparatus comprising a controller for selectively driving the hair apparatus by sensing the pressure inside the body by Inspecting whether the pressure inside the dust collector is 50 mmAq or less using the pressure gauge; Discharging air to the atmosphere by passing through a filter when the pressure is less than 5050 mmAq; Injecting high pressure air into the filter using a predetermined compressor when the pressure inside the dust collector is in the range of 51 mmAq to 100 mmAq using the pressure gauge; When the pressure inside the dust collector using the pressure gauge is in the range of 101mmAq ~ 200mmAq for the shot blasting equipment comprising the step of injecting a high pressure air using a predetermined compressor and at the same time driving the hairy device Dust collection method of the dust collector. 5. The method of claim 4, And collecting all the operations of the dust collector for filter replacement when the pressure inside the dust collector is 200 mmAq or more using the pressure gauge.

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