Equipment for removing dust emitted from melting furnaces

Abstract

The present invention relates to an apparatus for removing dust discharged from a melting furnace, and relates to a melting device including: an exhaust section for discharging dust and moisture discharged from the melting space of the melting furnace to the outside; a filter located inside the exhaust section with one surface facing the melting space; and a dust removal section for improving the dust removal ability of the filter.

Description

[Technical field]

[0001] The present invention relates to an apparatus for removing dust discharged from a melting furnace. [Background technology]

[0002] When hazardous waste is incinerated or melted (such as by vitrification) in a general waste (solid and liquid) incinerator or / and melting furnace facility, the exhaust gas contains solid and liquid particles such as unburned carbon, ash, and heavy metal particles.

[0003] In order to treat these fine particles (dust), they are first separated from the gas phase materials in the exhaust body and collected, and the dust (bedding material and fly ash) generated at this time is a secondary waste and requires separate treatment. In particular, the dust generated during the treatment of radioactive waste contains radioactivity, so special care is required in its treatment.

[0004] In addition, dust is generated when solid waste is charged and a large amount of moisture is generated when liquid waste is charged, causing dust to accumulate inside the pipe cooler.

[0005] This dust accumulation phenomenon not only leads to difficulties in handling the dust due to its tendency to fly, increases the cost of dust disposal, and complicates related equipment, but also ultimately causes problems in terms of lowering the utilization rate of the melting furnace. Summary of the Invention [Problem to be solved by the invention]

[0006] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide an apparatus for removing dust emitted from a melting furnace. [Means for solving the problem]

[0007] The present invention relates to an apparatus for removing dust discharged from a melting furnace, and relates to a melting device including: an exhaust section for discharging dust and moisture discharged from the melting space of the melting furnace to the outside; a filter located inside the exhaust section with one surface facing the melting space; and a dust removal section for improving the dust removal ability of the filter.

[0008] The exhaust section includes an exhaust port communicating with the melting space; a first pipe connected to the exhaust port in a first direction; a second pipe bent and connected to the first pipe; a connecting section connecting the first pipe and the second pipe; and a moisture cooler that cools the moisture discharged through the second pipe.

[0009] The exhaust unit further includes a pressure gauge for measuring the internal pressure of each of the first pipe and the second pipe; and a stopper for preventing the filter from coming off, and the first direction is a vertical direction, and the second pipe extends in a horizontal direction.

[0010] The filter is plate-shaped, is located diagonally in the connecting portion, and is at least one of a mesh type and a perforated type. Dust is detached from the filter through the dust removal portion, and the detached dust is re-supplied to the melting space.

[0011] The dust removal unit includes a drive unit that detaches accumulated dust by applying physical force to the filter; and a drive control unit that controls the operation of the drive unit based on the measurement value of the pressure measuring device, and the drive control unit activates the drive unit when the difference in pressure between the first piping and the second piping is equal to or greater than a certain level.

[0012] The drive unit moves a portion of the filter up and down.

[0013] The drive unit includes a propeller that imparts air flow to the filter.

[0014] The drive unit includes a hammer that applies a physical impact to the filter.

[0015] The drive unit includes a sliding member that slides along a surface that contacts the filter. Effect of the Invention

[0016] According to the present invention, an apparatus is provided for removing dust exhausted from a melting furnace. [Brief description of the drawings]

[0017] [Figure 1] 1 shows a melting device according to a first embodiment of the present invention. [Diagram 2] This is an enlarged view of A in Figure 1. [Figure 3a] 2 shows a filter of a melting device according to a first embodiment of the present invention. [Figure 3b] 2 shows a filter of a melting device according to a first embodiment of the present invention. [Figure 4] 1 shows a drive unit according to a first embodiment of the present invention. [Diagram 5] 4 shows a drive unit according to a second embodiment of the invention. [Figure 6] The shape in the direction B in FIG. 5 is shown. [Figure 7] 4 shows a drive unit according to a third embodiment of the invention. [Figure 8] 4 shows a drive unit according to a fourth embodiment of the present invention. [Figure 9] The shape in the C direction in FIG. 8 is shown. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] The present invention will now be described in more detail with reference to the drawings.

[0019] The accompanying drawings are merely examples shown to more specifically explain the technical ideas of the present invention, and therefore the ideas of the present invention are not limited to the accompanying drawings. In addition, the accompanying drawings may exaggerate the size and spacing of the components to explain the relationship between the components.

[0020] An apparatus for removing dust discharged from a melting furnace (hereinafter referred to as "dust removing apparatus") according to a first embodiment of the present invention will be described with reference to Figs. 1 to 4.

[0021] FIG. 1 shows a melting device according to a first embodiment of the present invention, FIG. 2 is an enlarged view of A in FIG. 1, FIGS. 3a and 3b show a filter of the melting device according to the first embodiment of the present invention, and FIG. 4 shows a drive unit according to the first embodiment of the present invention.

[0022] The dust removal device 1 includes an exhaust section 100 , a filter 200 , and a dust removal section 300 .

[0023] The exhaust section 100 exhausts dust and moisture from the melting space T of the melting furnace to the outside, and includes an exhaust port 110, a first pipe 120, a second pipe 130, a connecting section 140, a moisture cooler 150, a pressure measuring device 160, and a stopper 170.

[0024] The exhaust port 110 is connected to the melting space T and is a hole through which dust and moisture generated in the melting space T are exhausted to the outside. In the present invention, the exhaust port 110 is illustrated as being installed at the upper stage of the melting furnace, but is not limited thereto.

[0025] The first pipe 120 is connected to the exhaust port 110 in a first direction, and the volume and length of the pipe can be adjusted so that dust and moisture discharged from the exhaust port 110 can move gradually through the first pipe 120.

[0026] Here, the first direction is the vertical direction, and the vertical is between 80 degrees and 105 degrees, between 85 degrees and 100 degrees, between 85 degrees and 95 degrees, and preferably between 87.5 degrees and 92.5 degrees.

[0027] The second pipe 130 is bent and connected to the first pipe 120. In the present invention, the moisture cooler 150 is illustrated surrounding the second pipe 130 so that moisture passing through the second pipe 130 can be cooled, but is not limited thereto.

[0028] Here, the horizontal is between 0 degrees and 15 degrees and between 0 degrees and 10 degrees, and preferably between 0 degrees and 5 degrees.

[0029] The connecting portion 140 connects the first pipe 120 and the second pipe 130 to each other.

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[0030] The moisture cooler 150 has a larger diameter than the second pipe 130 and covers the second pipe 130 with the largest area, thereby maximizing the cooling efficiency of cooling the moisture discharged through the second pipe 130.

[0031] The pressure gauge 160 measures the internal pressure of the first pipe 120 and the second pipe 130, and in the present invention, the pressure gauge 160 simultaneously measures the pressure of the first pipe 120 and the second pipe 130. Although not shown, a monitoring device and a communication device for checking the corresponding pressure change in real time may be further installed.

[0032] The stopper 170 is installed (attached) to the inner wall surface of the connection part 140 to prevent the filter 200 from coming off. In the present invention, two stoppers 170 are illustrated as being installed (attached) in the horizontal direction of the second pipe 130 to restrict the movement of the filter 200, but this is not limited thereto. In other embodiments, the number and shape of the stoppers 170 may vary depending on the shape of the connection part 140 and the installation position of the filter 200.

[0033] The filter 200 is located inside the exhaust unit 100, and is disposed so that one surface faces the melting space. The filter 200 is plate-shaped, and is located in the diagonal direction at the connection portion 140 between the first pipe 120 and the second pipe 130.

[0034] 3a and 3b, in the present invention, the filter 200 is of a mesh type (a) or a perforated type (b), but is not limited thereto. Although not shown, a separate support unit for fixing the filter 200 in the connecting part 140 may be further installed.

[0035] The dust removing part 300 improves the dust removing ability of the filter 200 or improves the performance of the filter 200 , and includes a driving unit 310 and a driving control part 320 .

[0036] The dust removal section 300 improving the dust removal ability of the filter 200 or improving the performance of the filter 200 means that the dust removal section 300 applies physical force to the filter 200 through the operation of the dust removal section 300, thereby allowing the filter 200 to remove more or more dust accumulated in the exhaust port 110 more easily.

[0037] In addition, improving the dust removal ability (dust removal ability) means that the dust removal effect of filter 200 is maximized, which means that the performance of filter 200 itself is maintained constant and dust removal within filter 200 occurs constantly.

[0038] The easier the dust is attached to and detached from the filter 200, the more the dust removing ability of the filter 200 via the dust removing portion 300 or the performance of the filter 200 is improved.

[0039] The driving units 310, 310', 310'', 310''' apply a physical force to the filter 200 to detach dust particles accumulated on the filter 200.

[0040] The drive control unit 320 controls the operation of the drive units 310, 310', 310'', 310''' based on the measurement value of the pressure measuring device 160, and desorbs dust accumulated on the filter 200 only when the pressure difference between the first pipe 120 and the second pipe 130 is above a certain level.

[0041] A specific example of dust removal through the dust removal unit 300 is as follows. First, the internal pressures of the first pipe 120 and the second pipe 130 are confirmed through the pressure gauge 160, and the pressure change across the filter 200 is measured.

[0042] When a large amount of dust is accumulated on the filter 200, the pressure increases, and at this time, a physical force is applied to the filter 200 through the operation of the driving unit 310 via the driving control unit 320, so that the dust accumulated on the filter 200 is detached. Thereafter, the detached dust is resupplied to the melting space T.

[0043] The driving unit 310 (in the first embodiment) is operated under the control of the driving control unit 320, and although not shown, may further include a separate support unit for fixing the driving unit 310 to the exhaust unit 100. Also, a separate power supply device for supplying power to the driving unit 310 may further be included.

[0044] 4, a portion of the driving unit 310 according to the first embodiment of the present invention is connected to the filter 200, and moves a portion of the filter 200 up and down by the operation of the driving unit 310. The dust accumulated in the filter 200 is detached by the up and down movement of the filter 200, and at this time, the detached dust is re-supplied to the melting space T by its own weight.

[0045] Drive units according to second to fourth embodiments of the present invention will be described with reference to FIGS.

[0046] FIG. 5 shows a drive unit according to a second embodiment of the present invention, FIG. 6 shows B of FIG. 5, FIG. 7 shows a drive unit according to a third embodiment of the present invention, FIG. 8 shows a drive unit according to a fourth embodiment of the present invention, and FIG. 9 shows C of FIG. 8.

[0047] 5 and 6, a driving unit 310' according to a second embodiment of the present invention includes a propeller that applies air flow to the filter 200. The propeller detaches dust accumulated on the filter 200 by a rotating force, and at this time, the detached dust is resupplied to the melting space T by its own weight.

[0048] Referring to FIG. 7, a driving unit 310'' according to a third embodiment of the present invention includes a hammer that applies a physical impact to the filter 200. The filter 200 is vibrated by the hammering of the hammer, and the dust accumulated on the filter 200 is detached by the generated vibration. The detached dust is then re-supplied to the melting space T by its own weight.

[0049] In a third embodiment, the hammer moves up and down without contacting the filter 200, but comes into contact with a part of the filter 200, causing vibrations in the filter 200. In another embodiment, dust accumulated on the filter 200 can be detached by vibrations caused by the hammer while a part of the hammer is in contact with the filter 200.

[0050] 8 and 9, the driving unit 310''' according to the fourth embodiment of the present invention is operated under the control of the driving control unit 320, and detaches dust accumulated on the filter 200 by a sliding member that slides along a surface in contact with the filter 200. Thereafter, the detached dust is re-supplied to the melting space T by its own weight.

[0051] According to the present invention, it is possible to prevent the phenomenon that dust is accumulated inside the pipe cooler due to dust generated when solid waste is fed into the melting furnace and a large amount of moisture generated when liquid waste is fed into the melting furnace.

[0052] In addition, by reducing the amount of dust discharged through the exhaust system, the difficulty in handling the generated dust due to its scattering and the increased cost of dust treatment are eliminated, resulting in an increased utilization rate of the melting furnace.

[0053] The above-mentioned embodiments are merely illustrative examples for explaining the present invention, and the present invention is not limited thereto. A person having ordinary skill in the art to which the present invention pertains can implement the present invention by modifying it in various ways, and therefore the technical scope of the present invention should be determined by the appended claims.

Claims

1. In an apparatus for removing dust discharged from a melting furnace, an exhaust section for exhausting dust and moisture discharged from the melting space of the melting furnace to the outside; a filter located inside the exhaust section and arranged such that one surface faces the melting space; and A dust removal section that improves the dust removal ability of the filter.

2. The exhaust section is an exhaust port in communication with the melt space; a first pipe connected to the exhaust port in a first direction; a second pipe bent and connected to the first pipe; a connecting portion that connects the first pipe and the second pipe; and 2. The melting apparatus of claim 1, further comprising: a moisture cooler for cooling the moisture discharged through the second line.

3. The exhaust section is a pressure measuring device for measuring the internal pressure of each of the first pipe and the second pipe; and a stopper for preventing the filter from coming off; the first direction is a vertical direction; The melting apparatus according to claim 2 , wherein the second pipe extends horizontally.

4. The filter is plate-shaped and is positioned in a diagonal direction on the connecting portion, At least one of a mesh type and a perforated type, The melting device according to claim 2 , wherein dust is desorbed in the filter via the dust removal section, and the desorbed dust is resupplied to the melting space.

5. The dust removal unit includes: a drive unit for applying a physical force to the filter to detach the accumulated dust; and A drive control unit controls the operation of the drive unit based on the measurement value of the pressure measuring device; The drive control unit is The melting device according to claim 2 , wherein the drive unit is actuated when a difference between the pressure in the first pipe and the pressure in the second pipe is equal to or greater than a certain level.

6. The drive unit includes:

6. The melting apparatus of claim 5, wherein a portion of the filter is moved up and down.

7. The drive unit includes:

6. The melting apparatus of claim 5, further comprising a propeller for applying air flow to said filter.

8. The drive unit includes:

6. The melting apparatus of claim 5, further comprising a hammer for applying a physical impact to the filter.

9. The drive unit includes:

6. The melting device according to claim 5, further comprising a sliding member which slides along a surface in contact with the filter.

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