JP2006136787A - Dust collecting apparatus and its controlling method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dust collecting apparatus which can prevent troubles, e.g. mistaken attachment of a filter or omission of the check of the attachment, and allows replacement of a filter at an appropriate time, and its controlling method. <P>SOLUTION: The apparatus has an attachment plate to which two or more filters are attached in a removable way, a sensor detecting whether the attachment plate is fixed to a predetermined position in the apparatus or not, a timer measuring and integrating the time during which signals generated in operation of the apparatus are sent from the sensor and an indication means of displaying that the time integrated by the timer reaches a predetermined replacement time for the filter. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a dust collector and a control method thereof.

  2. Description of the Related Art Conventionally, a dust collector of a type that removes dust adhering to a filter by air blow has been publicly known (for example, see Patent Document 1).

JP-A-8-38838 (page 2, Fig. 1-3)

  However, in conventional dust collectors, confirmation of filter attachment depends on confirmation by a person, and there is a problem that dust leaks to the exhaust side due to filter attachment mistakes or missing attachment confirmation. In addition, the replacement of the filter is generally performed by the person in charge of management based on the management record (filter replacement record, etc.), but at an appropriate time due to human error such as forgetting to record in the management record. However, there is a problem that the filter cannot be replaced.

The present invention has been made in view of the above problems, and can prevent problems due to filter mounting mistakes, mounting check leakage, and the like, and a dust collector capable of replacing a filter at an appropriate time, and a control method therefor The purpose is to provide.

  To achieve the above object, a dust collector in the present invention detects a mounting plate to which a plurality of filters are detachably mounted, and that the mounting plate is fixed at a predetermined position in the dust collector. A sensor, a timer that measures and accumulates the time during which the signal from the sensor is received during operation of the dust collector, and the time accumulated by the timer reaches a preset filter replacement time And a display means for displaying.

  In order to achieve the above object, the dust collector control method of the present invention uses a sensor to detect that a mounting plate to which a plurality of filters are detachably attached is fixed at a predetermined position in the dust collector. Measuring the time during which the signal from the sensor is received during operation of the dust collecting device with a timer, and integrating the time accumulated by the timer to the preset filter replacement time. And a step of displaying it on the display means when it has arrived.

  The present invention provides a mounting plate to which a plurality of filters are detachably mounted, a sensor for detecting that the mounting plate is fixed at a predetermined position in the dust collector, and the sensor during operation of the dust collector. A timer that measures and accumulates the time during which the signal is received, and a display means that displays when the time accumulated by the timer has reached a preset filter replacement time. Therefore, it is possible to prevent problems due to filter mounting mistakes, mounting check leakage, and the like, and various effects such as enabling the filter to be replaced at an appropriate time.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, the lower half of the dust collector S is a dust removal chamber 1, and the upper half is a clean gas chamber 2. A plurality of cylindrical filters 3 and 3 are accommodated in the dust removal chamber 1. Note that the lower ends of the filters 3 and 3 are closed by a lid member 3a, and an opening 3b is provided at the upper end (see FIG. 2). The filters 3 and 3 are detachably attached to the lower end of the mounting plate 4, and are inserted into the dust removal chamber 1 together with the mounting plate 4 as shown in FIG. The mounting plate 4 is inserted along guide members 5 and 5 fixed to the inner wall of the dust removal chamber 1.

  Further, in the present invention, it is detected that the mounting plate 4 is fixed at a predetermined position in the dust collector S, and this point will be described in detail. As shown in FIG. 2, a rotating frame 6 extending in the horizontal direction is disposed in the dust collector S, and a shaft member 7 is passed through the center of the rotating frame 6. Both ends of the shaft member 7 are pivotally supported by bearing members 8, and the rotating frame 6 is freely rotated around the shaft member 7.

A height-adjustable stopper 9 is connected to the lower portion of one end of the rotating frame 6, and the mounting plate 4 is fixed at a predetermined position in the dust collector S below the other end. A limit switch 10 is provided as a sensor for detecting that this has been done. A packing 11 is attached to the upper peripheral edge of the mounting plate 4 over the entire circumference, and a pressing member 12 is disposed over the packing 11 over the entire circumference. A plate member 13 is disposed below the stopper 9, and the plate member 13 is fixed to the upper portion of the mounting plate 4.

  FIG. 2 shows a state when the mounting plate 4 to which the filters 3 and 3 are attached is inserted into the dust removal chamber 1 along the guide members 5 and 5. In this state, when the mounting plate 4 is fastened and fixed in the dust removal chamber 1 by fastening means (not shown), the mounting plate 4 rises accordingly. Then, the plate member 13 fixed to the upper part of the mounting plate 4 pushes up the stopper 9, the rotating frame 6 rotates clockwise around the shaft member 7, and the other end of the rotating frame 6 Then, the limit switch 10 is turned on (see FIG. 3). It is detected by the ON signal that the mounting plate 4 is fixed at a predetermined position in the dust collector S. At this time, the packing 11 is pressed by the pressing member 12.

  The limit switch 10 is electrically connected to a timer 14 that measures and accumulates the time during which the ON signal is received from the limit switch 10 during operation of the dust collector S. The timer 14 is electrically connected to display means 15 (see FIG. 1) for displaying when the time accumulated by the timer 14 has reached a preset exchange time for the filters 3 and 3. .

  The operation of the apparatus configured as described above will be described. First, as described above, the mounting plate 4 to which the filters 3 and 3 are attached is inserted into the dust removal chamber 1 along the guide members 5 and 5. When the mounting plate 4 is fastened and fixed in the dust removal chamber 1 by the fastening means (not shown), the limit switch 10 is turned on as described above. Accordingly, it is detected that the mounting plate 4 is fixed at a predetermined position in the dust collector S.

  Next, the dust collector S is operated in this state. Then, the dust-containing gas flows into the dust removing chamber 1 from the inlet portion 1a under the suction action of a blower (not shown) disposed in the clean gas chamber 2. The dust-containing gas that has flowed into the dust removal chamber 1 flows into the filters 3 and 3 from the outside of the filters 3 and 3. At this time, dust in the dust-containing gas is removed by adhering to the outer surfaces of the filters 3 and 3. The gas flowing into the filters 3 and 3 flows into the clean gas chamber 2 as clean gas from the plurality of openings 4 a and 4 a provided in the mounting plate 4. Thereafter, the clean gas that has flowed into the clean gas chamber 2 is discharged from the outlet 2a to the outside by the blower.

Also, the amount of dust adhering to the outer surfaces of the filters 3 and 3 increases during the operation described above. For this reason, compressed air is intermittently blown into the filters 3 and 3 by a pulse jet mechanism (not shown) disposed above the filters 3 and 3. Thereby, the adhering dust on the outer surfaces of the filters 3 and 3 is peeled off.

  In the present invention, when the dust collector S is operated, the time during which the ON signal is received from the limit switch 10 during the operation of the dust collector S is measured by the timer 14 and integrated. When the time accumulated by the timer 14 reaches a preset replacement time for the filters 3 and 3, it is displayed on the display means 15, and the filters 3 and 3 are replaced based on this display. The filters 3 and 3 can be exchanged at appropriate times.

In order to replace the filters 3 and 3, the fastening and fixing of the mounting plate 4 by the fastening means (not shown) is released, and the mounting plate 4 is lowered. In this state (see FIG. 2), if the mounting plate 4 to which the filters 3 and 3 are attached is pulled out of the apparatus along the guide members 5 and 5, the filters 3 and 3 can be exchanged.

Further, when the fastening and fixing of the mounting plate 4 is released and the mounting plate 4 is lowered as described above, the plate member 13 is lowered, and accordingly, the rotating frame 6 pushes the shaft member 7 with the weight of the stopper 9. The limit switch 10 is turned off (see FIG. 2) by turning counterclockwise about the center. As a result, the timer 14 is reset. In the present invention, unless the filters 3 and 3 are replaced as described above, the timer 14 is not reset, and only the timer 14 cannot be forcibly reset.

1 is an overall view showing an embodiment of the present invention. It is detail drawing which shows a part in dust collector, Comprising: It is a figure which shows the state before fixing a mounting plate to a predetermined position. It is detail drawing which shows a part in dust collector, Comprising: It is a figure which shows the state by which the attachment plate was fixed to the predetermined position.

Explanation of symbols

3 Filter 4 Mounting plate 10 Sensor 14 Timer 15 Display means S Dust collector

Claims (2)

A mounting plate to which a plurality of filters are detachably mounted; a sensor for detecting that the mounting plate is fixed at a predetermined position in the dust collector; and a signal from the sensor during operation of the dust collector. A timer for measuring and accumulating the received time, and display means for displaying when the time accumulated by the timer has reached a preset filter replacement time. Dust equipment. A step of detecting by a sensor that a mounting plate to which a plurality of filters are detachably attached is fixed at a predetermined position in the dust collector, and a signal from the sensor during operation of the dust collector is received. A step of measuring and integrating the time by a timer, and a step of displaying on the display means when the time accumulated by the timer has reached a preset replacement time of the filter. Control method of dust device.