JPH0244830Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a filtration type dust collector whose filter element can be easily replaced.

(Prior art) Filter-type dust collectors in which multiple filter elements are installed in a suspended manner on a partition plate inside a casing are widely used, but conventional devices require a lot of work to replace filter elements. There were some drawbacks. Therefore, as shown in Japanese Utility Model Application No. 57-173819, the top of the filter element is held between a perforated partition plate provided horizontally in the center of the casing and a mounting plate screwed to the bottom surface of the partition plate. A filtration type dust collector has been devised in which the filter element and the mounting plate can be removed from the partition plate by clamping the plate. However, in this device, the filter element is airtightly attached to the partition plate by pinching the top of the filter element between the partition plate and the mounting plate, so the weight of the filter element causes the center of the mounting plate to bend, resulting in a poor seal. However, it had the disadvantage of being prone to gas leaks. Therefore, when attempting to arrange multiple rows of filter elements, it is necessary to divide the mounting plate into multiple rows, which has the disadvantage of complicating replacement work.

(Problems to be solved by the invention) The present invention solves the above-mentioned conventional problems, allows filter elements to be easily replaced, and even when the number of filter elements is increased. It was completed with the aim of creating a filtration type dust collector that would not cause gas leaks.

(Means for solving the problem) The present invention has a flange plate protruding from the inner circumferential surface at a position where the casing is divided into two parts, and a link mechanism is used on both sides of the flange plate to move the flange plate close to and away from the flange plate. In addition to providing an elevating plate that can be moved, a partition plate that airtightly supports a plurality of filter elements in a suspended manner is inserted between the above-mentioned flange plate and the elevating plate, and the elevating plate is crimped and fixed in an airtight manner. It is something.

(Embodiment) Next, the present invention will be explained in detail with reference to the illustrated embodiment. 1 is a casing of a dust collector, and 2 is an inner circumferential surface at a position where the casing 1 is divided into a clean room and a dust-containing room. It is a flange plate that protrudes inward all around the circumference. Suspension bolts 3 are installed on the lower surface of both sides of the collar plate 2.
3, an elevating plate 4 is suspended so as to be movable up and down. As shown in FIGS. 2 and 3, at the lower ends of the hanging bolts 3, 3, there is a link plate 8 having three pivots 5, 6, 7 arranged in a substantially equilateral triangle shape, and a feeder with a knob 9. link mechanism 11 including screw 10;
is provided. That is, the first pivot 5 of each link plate 8 is for rotatably attaching the link plate 8 to the connector 12 fixed to the lower end of the hanging bolt 3, and the second pivot 6 is for attaching the lift plate 4 to the connector 12 fixed to the lower end of the hanging bolt 3. A roller 13 that abuts the lower surface is pivotally mounted, and a block 14 is also pivotally mounted on the third pivot 7, and a feed screw 10 is screwed between the left and right blocks 14, 14. The feed screw 10 has a right-handed threaded portion 10a and a left-handed threaded portion 10b, and each block 14, 14 has a corresponding female threaded hole formed therein, so that when the knob 9 is rotated clockwise, As shown in FIG. 3, the distance between the blocks 14, 14 increases, the link plate 8 rotates outward about the first pivot 5, and the roller 13 of the second pivot 6 moves the lifting plate 4. Push up. Further, when the knob 9 is rotated counterclockwise, the distance between the blocks 14 and 14 becomes smaller as shown in FIG. It will be separated from the

On the other hand, reference numeral 15 designates a partition plate with a plurality of mounting holes 16 transparently provided in the center thereof, and as shown in FIG. Partition plate 15
Insert the bolt into the bolt insertion hole 20, and then insert the wing nut 2.
1, the filter element 17 is installed in a suspended and airtight manner. A gasket 22 is provided on the upper surface of the peripheral edge of this partition plate 15 over the entire circumference, and after inserting the partition plate 15 between the collar plate 2 and the lifting plate 4 until it hits the stopper 23, as shown in FIG. When the elevating plate 4 is raised, this gasket 22 moves from the protrusion 2 on the lower surface of the collar plate 2.
4, the elevating plate 4 is airtightly crimped and fixed to the flange plate 2. Note that 25 shown in FIG. 1 is a protection tube for protecting the feed screw 10 from corrosion caused by suction gas.

(Function) In this configuration, after the elevating plate 4 is lowered by the action of the link mechanism 11 as described above, the flange plate 2 and the elevating plate 4 protruding from the inner circumferential surface of the casing 1 are lowered. Insert the partition plate 15 between the
This is to fix the Since the filter element 17 is airtightly attached to the partition plate 15 in advance through the gasket 9, if the dust-containing gas is supplied from below the casing 1 and clean gas is sucked from above the casing 1 in this state, the dust-containing gas can be sucked from above the casing 1. The dust in the dust gas will be filtered on the surface of the filter element 17. Furthermore, when replacing the filter element 17, by rotating the knob 9 and lowering the elevating plate 4 by the action of the link mechanism 11, the entire partition plate 15 to which the filter element 17 is attached can be removed from the flange plate 2. This allows the filter element 17 to be easily replaced.

In this manner, in the present invention, the lifting plate 4 is raised and lowered by the link mechanism 11 to attach and detach the partition plate 15 to which the filter element 17 is attached, so that the replacement work of the filter element 17 is extremely facilitated. Moreover, unlike the conventional structure in which the holding plate at the top of the filter element 17 is clamped between the partition plate and the mounting plate, in the present invention, the filter element 17
is airtightly attached to the partition plate 15, and the periphery of the partition plate 15 is sandwiched between the collar plate 2 and the lifting plate 4 and fixed by airtight pressure. Even if the center of the plate 15 is bent, there is no risk of gas leakage.
Therefore, a plurality of rows of filter elements 17 can be attached to one partition plate 15.

(Effects of the invention) As is clear from the above explanation, the present invention allows filter elements to be easily replaced and there is no risk of gas leakage even when there are a large number of filter elements. As a filtration type dust collector that solves the problems of the conventional technology, its practical value is extremely great.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention, and FIGS. 2 and 3 are partially cutaway side views showing the operation of the elevating plate. 1: Casing, 2: Flange plate, 4: Lifting plate, 1
1: Link mechanism, 15: Partition plate, 17: Filter element.

Claims (1)

[Scope of utility model registration request] Flange plate 2 is installed on the inner peripheral surface at the position where casing 1 is divided into two parts.
A lifting plate 4 is provided on both sides of the flange plate 2 so as to be able to approach and move away from the flange plate 2 by a link mechanism 11, and a partition plate that airtightly supports a plurality of filter elements 17 in a suspended manner. 15
A filtration type dust collector characterized in that the above-mentioned flange plate 2 and the elevating plate 4 are inserted between the flange plate 2 and the elevating plate 4, and the elevating plate 4 is crimped and fixed in an airtight manner.