JP3704302B2 - Dust collector breakage filter cloth treatment equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for treating a damaged filter cloth of a dust collector.
[0002]
[Prior art]
An example of the dust collector is shown in FIGS. In the figure, the dust collector 1 is divided into a casing 2 by a thimble plate 3 and divided into a dust-containing air chamber 4 and a purified air chamber 5 at the top. A large number of filter cloths 10 are suspended on the thimble plate 3 to contain dust. The dust-containing air introduced into the air chamber 4 is filtered by the filter cloth 10 and discharged through the purified air chamber 5. The filter cloth 10 has a reverse injection pipe 12 for removing accumulated dust. Each filter cloth 10 includes a nozzle 13, and a cage 11 having an upper end attached to the nozzle 13 is inserted in the filter cloth 10 in order to maintain a predetermined bulge. 6 is an exhaust fan, 14 is a high-pressure air supply pipe for reverse injection, and 15 is a pressure air supply switching valve to each reverse injection pipe. Reference numeral 16 denotes an upper attachment flange of the filter cloth 10, 17 denotes a fastening band, and 19 denotes a centering bolt attached to the upper flange 18 of the nozzle.
[0003]
As a result, the dust-containing air introduced into the dust-containing air chamber is filtered by the filter cloth 10, and the dust adhering to the filter cloth is automatically reverse-injected from the reverse-injection pipe 12 when reaching a predetermined negative pressure. Is removed. However, the dust adheres to the outer surface of the filter cloth due to long-term use, and cannot be removed by the above-described reverse injection, and may be removed and cleaned. In this case, a method is adopted in which the case 11 is pulled up and the filter cloth is then dropped into the dust-containing air chamber and taken out.
[0004]
[Problems to be solved by the invention]
By the way, the filter cloth 10 may be damaged during use. In this case, dust has entered and accumulated in the filter cloth. Therefore, the filter cloth 10 and the cage 11 are in close contact with each other, and when the filter cloth 10 is removed, the filter cloth 10 cannot be dropped into the dust-containing air chamber 4 as it is, and pulling up with the cage 11 stains the vicinity. At the same time, it cannot be lifted up from the bag filter mounting hole 3a of the thimble plate 3 as it is, and it is lifted up together with the cage 11 while cutting the filter cloth to remove the accumulated dust and remove the cage 11 Has been adopted.
[0005]
However, when this method is used, dust is scattered, and health problems for workers and contamination to the surroundings cannot be avoided.
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and it is an object of the present invention to remove dust accumulated in the filter cloth attached state and to allow a normal filter cloth replacement operation.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the dust collector breakage filter cloth processing apparatus according to the present invention divides the housing into upper and lower parts by a thimble plate, the lower part is a dust- containing air chamber, the upper part is a purified air chamber, and the thimble plate has a number of parts. A bottomed filter cloth is suspended and suspended on a thimble plate in the dust collector's damaged filter cloth treatment device that filters the dust-containing air introduced into the dust-containing air chamber through the filter cloth and discharges it through the purified air chamber. It consists of a dust suction nozzle with a jet hole connected to the pressure air supply mechanism inserted into the filter cloth and a lifting mechanism of the suction nozzle, and the dust suction nozzle is inserted into the filter cloth and the accumulated dust is sucked and discharged In addition, the dust accumulated in the filter cloth is agitated by the ejection of pressurized air.
[0007]
The present invention having the above-described configuration is provided with the dust suction nozzle inserted into the filter cloth and the suction nozzle raising / lowering mechanism. By ejecting the pressure air from the pressure air ejection nozzle provided in the suction pipe, the dust suction efficiency can be improved by stirring the accumulated dust in the filter cloth.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a damaged filter cloth treatment apparatus according to the present invention will be described below with reference to the drawings.
In addition, the dust collector 1 is the same as that of the said prior art example, attaches | subjects the same code | symbol to the same components, and abbreviate | omits description.
[0009]
In FIG. 1, reference numeral 20 denotes a damaged filter cloth treatment apparatus in the dust collector of the present invention. 21, a lifting mechanism 22, a suction mechanism 23 connected to the processing mechanism 21, and a pressure air supply mechanism 24.
[0010]
The dust processing mechanism 21 is provided with a suction nozzle 25 at the tip, and the upper end is provided with a duct 26 connected to the suction mechanism 23 and the pressure air supply mechanism 24 via a flexible connecting tube 27. The duct 26 and the connecting pipe 25 are double pipes, the inner pipe 26a of the duct 26 is a dust suction pipe, the outer pipe 26b is a pressure air supply pipe, the dust suction pipe 26a is connected to the suction mechanism 23, and the pressure air supply pipe. 26b is connected to the pressurized air supply mechanism 24 through an appropriate connection mechanism (not shown).
[0011]
The suction nozzle 25 has a suction port 30 opened at the lower end of the center, and a plurality of pressure air ejection holes 31 are attached downward on the outer periphery. The suction port 30 is in the dust suction pipe 26a, and the pressure air ejection hole 31 is in the pressure air supply pipe. 26b.
[0012]
In the above configuration, when the filter cloth 10 is damaged, the dust D enters and accumulates in the filter cloth 10. This is detected by a change in suction resistance, dust leakage, or the like. When this broken filter cloth is generated, the operation of the dust collector 1 is stopped, the dust treatment mechanism 21 is inserted into the broken filter cloth 10 by the lifting mechanism 22, and the accumulated dust is sucked by the suction port 30 of the suction nozzle 25. Remove by suction. At this time, when the pressurized air is ejected from the ejection holes 31, the accumulated dust can be agitated and suctioned satisfactorily.
[0013]
【The invention's effect】
As described above , according to the damaged filter cloth treatment apparatus of the dust collector of the present invention, the dust suction nozzle inserted into the filter cloth suspended from the thimble plate and the lifting mechanism of the suction nozzle are configured. The suction nozzle can be securely inserted into the filter cloth, and the accumulated dust can be sucked and discharged efficiently. The dust suction nozzle is provided with a jet hole connected to the pressure air supply mechanism. Since the accumulated dust is agitated, the accumulated dust is agitated and can be easily removed by suction.
[Brief description of the drawings]
FIG. 1 is a longitudinal explanatory view of an embodiment of a processing device for a damaged filter cloth of a dust collector of the present invention.
FIG. 2 is a longitudinal sectional view of a suction nozzle.
FIG. 3 is an overall sectional view of the dust collector.
FIG. 4 is an explanatory view of attaching a bag filter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Dust collector 3 Thimble plate 4 Dust containing air chamber 5 Purified air chamber 10 Filter cloth 20 Damaged filter cloth processing device 21 Dust processing mechanism 22 Lifting mechanism 23 Suction mechanism 24 Pressure air supply mechanism 25 Suction nozzle

Claims (1)

  The enclosure is divided into upper and lower parts by a thimble plate, the lower part is a dust-containing air chamber, the upper part is a purified air chamber, and many bottomed filter cloths are suspended on the thimble plate, and the dust-containing air introduced into the dust-containing air chamber In a dust collector damaged filter cloth treatment apparatus that filters air through a filter cloth and discharges it through a purified air chamber, dust having an ejection hole connected to a pressure air supply mechanism inserted into a filter cloth suspended from a thimble plate It consists of a suction nozzle and a lifting mechanism for the suction nozzle. The dust suction nozzle is inserted into the filter cloth to suck and discharge the accumulated dust, and the dust accumulated in the filter cloth is agitated by the ejection of pressure air. An apparatus for treating a damaged filter cloth of a dust collector.

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