KR200289927Y1 - Rotary Valve with Automatic Spacing Device - Google Patents

Abstract

The present invention prevents wear of the rotary valve (5) casing (51) of the dry dust collector and the gap between the blade (101) and the casing (51) is automatically adjusted to prevent the reverse flow of dust. It relates to a rotary valve (5) to prevent and also to be removed automatically when a foreign material jam occurs, in particular, a plurality of circular grooves (52-1), auxiliary spring hook 106 and round head plate holder (52-2) A round head plate having a rounded bottom and a secondary spring hook 106 and a bolt hole 104-1 so as to be assembled to the machined drive shaft 52 and the circular groove 52-1 of the drive shaft 52 ( 104 is formed in the upper end and the hump blade 101 having a longitudinally long bolt groove 101-1 and the hump blade 101 and the round head plate 104 by the bolt 110 is coupled Consists of a guide 103 for connecting and a spring block 102 embedded in the guide It relates to a rotary valve characterized in that the automatic spacing device is installed.

The present invention as described above prevents the collection force from being lowered, and even if foreign matter gets caught between the casing and the blade, it is automatically removed by the auxiliary spring so that the rotary valve is stopped and maintenance due to overload without lowering the facility operation rate. And maintenance costs can be significantly reduced.

Description

Rotary valve with automatic spacing

The present design prevents wear of the rotary valve casing of the dry precipitator and automatically adjusts the gap between the blade and the casing to prevent backflow of dust and can be removed automatically when foreign matter is caught. To a rotary valve.

Generally, in the dry dust collector, as shown in FIG. 1, the air is sucked through the dust collecting hood 11 installed at each workplace by a blower fan 9, and the air sucked in together with the dust generated at the workplace. The filter is introduced into the hopper 1 through the suction pipe 2 and filtered by a plurality of filter cloths 4 installed in the hopper 1 so that dust is attached to the filter cloth 4 and air passes through the filter cloth 4 to discharge the pipes. Since it is discharged to the chimney 10 through (3), the inside of the hopper 1 has a constant suction force by the suction force of the blower (9).

The dust attached by the filter cloth (4) is separated from the filter cloth (4) by the dust collector of the dry precipitator to prevent the intake of air when it falls by the weight below the hopper (1) to transfer the dust stored above The rotary valve 5 is transported to the dust conveying conveyor 6 and stored in the storage tank.

In the conventional rotary valve 5-1, as shown in FIG. 2, the blade 58-1 is driven by driving the sprocket 55 provided with the chain 57 on the drive shaft 52-3 by the driving force of the drive motor 56. Rotary valve (5-1)) is described in detail so that the upper chute (53) for introducing dust from the hopper (1) and the center of the lower chute (54) for discharging dust can be explained. The drive shaft 52-3 rotates the blade 58-1 at the portion, and a plurality of plates 58 are attached to the drive shaft 52-3, and the blade 58-1 is fixed to the end of the blade 58-1. 58-2) to be rotated inside the casing 51, and the casing 51 and the blade 58-1 are rotated from the outside of the hopper 1, that is, the rotary chute 5-1 lower chute 54 The blade 58-1 and the casing 51 are completely in contact with each other to block the intake of air from the side, but the hopper is manufactured to maintain airtightness. (1) When dust is caught between the blade 58-1 and the casing 51 in the process of transporting the dust inside, the wear of the blade 58-1 progresses by friction, and the casing 51 and the blade 58- 1) is gradually widened so that atmospheric air is sucked from the lower chute 54 of the rotary valve 5-1, and the dust inside the hopper 1 is transferred to the transfer conveyor 6 through the rotary valve 5-1. As well as not being discharged, a eddy phenomenon in which dust is rotated by intake air in the upper chute 53 is generated, causing holes in the upper chute 53 and the casing 51 to be worn, resulting in a rotary valve 5-1. Not only shortens the service life, but also air flows into the lower chute (54) to reverse dust, causing clogging of the filter cloth (4) to reduce the dust collection force and promote the wear to increase the dust concentration in the air to discharge This is what happens.

When the wearer (9) is stopped in the above-described wear state as described above, the pressure inside the hopper 1 disappears, and thus, the dust attached to the filter cloth 4 is temporarily dropped to the lower side of the hopper 1 and worn out. 58-1) A large amount of gas is discharged at the same time to lose the processing capacity of the lower conveyor (6), causing frequent burnout of the drive motor (56) due to overload and frequent loss of the internal chain conveyor due to excessive driving.

In addition, since the plate 58 is welded and fixed to the drive shaft 52-3, the plate shaft 58-3 must be replaced at the same time when the drive shaft 52-3 is replaced or when the plate 58 is abnormal. .

In addition, when foreign matters are introduced into the rotary valve 5-1, the rotary valve 5-1 is frequently stopped due to being caught between the blade 58-1 and the casing 51, and the rotary valve 5-1. Blade 58-1 is worn out, and during the replacement operation, the sprocket 55 of the rotary valve 5-1 is removed and the drive shaft 52-3 is removed from the casing 51, and then the plate furnace 58 is removed. Maintenance time is long and difficult because the blade 58-1 has to be removed and replaced. Therefore, even after the blade 58-1 is replaced, the gap between the casing 51 and the rotary valve 5-1 that has already been worn Since the inflow is likely to be high, the dust collection force is reduced, there is a problem that the rotary valve (5-1) itself has to be replaced.

The present invention is to install a round head plate by processing a circular groove on the drive shaft of the conventional rotary valve to solve the above problems, and attached to the newly designed device capable of automatic interval adjustment on the upper part of the blade blade rotation and wear Even though the process proceeds, the built-in spring and the auxiliary spring installed between the drive shaft and the round head plate constantly push the braid blades to always keep the casing and the braid blades in close contact to prevent the intake of air, thereby improving dust collection power. It is an object of the present invention to provide a rotary valve capable of automatic spacing.

1 is a schematic diagram showing a state in which dust is collected in a dry dust collector,

Figure 2 a is a cross-sectional view of a conventional rotary valve, b is a perspective view,

3 is a perspective view of a rotary valve according to the present invention,

4 is a detailed view of part A of FIG. 3;

5 is an exploded view of the automatic spacing device according to the present invention.

<Description of the code used in the main part of the drawing>

1: hopper, 2: suction tube, 3: discharge tube,

4: filter cloth, 5,5-1: rotary valve, 6: conveying conveyor,

9: brower, 10: chimney, 11: dust hood,

51: casing, 52,52-3: drive shaft, 52-1: circular groove,

52-2: round head plate holder, 53: upper suit,

54: lower suit, 55: sprocket, 56: drive motor,

57: chain, 58: plate, 58-1: blade,

58-2: fixing bolt, 100: automatic spacing device,

101: hair blade 101-1,104-1: bolt groove,

102: spring block, 102-1: spring, 103: guide,

104: round head plate, 105: auxiliary spring,

106: secondary spring hook, 110: bolt, 200: foreign matter

The present invention devised to achieve the above object is a drive shaft with a plurality of circular grooves and auxiliary spring hooks and plate holders, and the lower portion is circular and the secondary spring hooks and bolt holes to be assembled to the circular groove of the drive shaft The machined round head plate, a hump blade having a jaw formed at the upper end and having a longitudinally long bolt groove, a guide connected by bolting between the hump blade and the round head plate, and a spring embedded in the guide. Provided is a rotary valve equipped with an automatic spacing device, characterized in that consisting of a block.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

Figure 3 is a perspective view of a rotary valve according to the present invention, Figure 4 is a detailed view of the portion A of Figure 3, Figure 5 is an exploded view of the automatic interval adjusting device according to the present invention.

3 to 5, the present invention attaches a plurality of auxiliary spring hooks 106 and round head plate holders 52-2 to the drive shaft 52 of the rotary valve 5, and has a round head plate having a lower portion. Process a circular groove 52-1 that can be inserted into the side (104) from the side and the bolt hole 104-1 at the upper end of the round head plate 104 is installed in the drive shaft 52 and the above Attach the same number of auxiliary spring hooks 106 installed in the drive shaft 52 to insert and install the auxiliary spring 105, and a jaw is formed at the upper end, and a plurality of bolt holes 101-1 are processed lengthwise in the longitudinal direction. Between the hump blade 101 and the round head plate 104 can be guided by sliding the hump blade 101 by bolting and a plurality of springs (102-1) as a good rubber product Coating to prevent the ingress of dust A guide with a built-in spring-block 102 is designed to be able to keep the force to push the side of the casing 51 when the wear of the blade head hump 101 103 are provided.

In the automatic spacing device according to the present invention, the dust collected by the filter cloth in the hopper is lowered to the lower side of the hopper by gravity and is transferred to the conveying conveyor by the rotating rotary valve. By the spring tension of the spring block, the hull blade is automatically pressed against the inner wall of the casing by the spring tension of the spring block, and the automatic spacing of the hump blade is adjusted by the length of the bolt hole machined on the hump blade. do.

In addition, the round head plate inserted into the drive shaft with the circular groove can be moved freely from side to side, so that even if the blade is caught by the foreign material, the foreign material gradually escapes by the action of the auxiliary spring so that the blade can stand up in the rotational direction. The rotary valve is able to continue to rotate without stopping, and the round head plate holder is installed to prevent deviation in the direction of rotation.

Since the gap is automatically adjusted even when the hump blade is worn by the present invention as described above, it is possible to block the air by the suction force, to prevent the dust collected from being reattached to the filter cloth and to reduce the dust collecting force, as well as the foreign matter and the casing. Even if it is caught between the blades, it is automatically removed by the auxiliary spring to stop the rotary valve, thereby significantly reducing the maintenance and maintenance costs due to overload without lowering the facility operation rate.

Claims (1)

A drive shaft 52 in which a plurality of circular grooves 52-1, auxiliary spring hooks 106, and round head plate holders 52-2 are machined, A round head plate 164 having a lower portion having a circular shape and a secondary spring hook 106 and a bolt hole 104-1 so as to be combined with the circular groove 52-1 of the drive shaft 52; A hump blade 101 having a jaw formed at the upper end and having a longitudinally long bolt groove 101-1, A guide 103 connected by bolting between the hump blade 101 and the round head plate 104; Rotary valve is installed, characterized in that consisting of the spring block 102 is built in the guide 103.