JPH059062Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dust collector for equipment that pneumatically transports compounds and the like.

[Conventional technology and its problems]

In the cable sheath extrusion molding, as shown in FIG. However, some of the compound that is small in shape and light in weight (hereinafter referred to as compound waste) falls into the hopper 5 of the cyclone 4, but does not fall into the hopper 5, and is sent from the exhaust port at the top of the cyclone 4 along with the air from the blower 1 to the hose 7. The dust is sent to the dust collector 8 and collected there.

In this conventional dust collector, a filter made of cloth or the like is stretched inside a casing, and air is circulated through the filter to collect dust. For this reason, the filter is appropriately vibrated to remove the collected dust.

However, as the number of times the filter is used increases, the clogging may become impossible to remove with the vibration of the vibrator, or the filter may deteriorate and break, making it necessary to replace it with a new filter. Therefore, replacing the filter with a new one takes time and effort, and work efficiency is low.

In addition, as a general dust collector, JP-A-57-
As described in Publication No. 130526, there is a method using water spray. Although this device has a high dust collection effect, when collecting the compound waste, it is necessary to prevent the compound from getting wet through the intake pipe.

In view of the above points, it is an object of the present invention to provide a compound waste dust collector that does not require a vibrator and requires fewer filter replacements.

[Means to solve the problem]

In order to solve the above problems, in the present invention, a hose from a container of the cable sheathing compound of the cable sheathing extrusion molding machine is connected to the air inflow pipe of the casing via a cyclone, and the In a dust collector that sends air from a cyclone, a damper for opening and closing is provided in the air pipe, a nozzle for spraying water into the air is provided in the casing, and collected dust and water are placed below the nozzle. A separate filter was provided, and an exhaust port was formed in the casing wall above the filter.

[Effect]

A dust collector configured in this way uses water sprayed from the nozzle to drop the compound waste sent into the dust collector from the cyclone via the hose with the damper open when extruding the cable jacket. It is collected on a filter installed in the dust collector and separated from water. On the other hand, the collected air is discharged from the exhaust port without passing through the filter.

Further, when the extrusion molding operation is stopped or completed, the damper is closed. As a result, moisture inside the casing is blocked by the damper and does not reach the container.

[Example 1] This example is also prepared for the above-mentioned jacket extrusion molding process shown in FIG. 2, and as shown in the same figure and FIG. an air pipe 12 that connects the air pipe 12, a nozzle 23 that sprays water a onto the compound waste 25 discharged from the air pipe 12 into the container 9 together with air, a saucer 17 and casing 9 that store the compound waste 25 and water a, and the water It is composed of a pump 21 that circulates water.

The air pipe 12 fixed to the casing 9 is provided with a damper 14 that opens while the blower 1 is in operation and closes while the blower 1 is stopped, so that the damper 14 slides on the flange 13 by an air cylinder 24. By closing the damper 14, moisture from the water a in the casing 9 is prevented from entering the hopper 5 via the hose 7 and the cyclone 4, and the compound is prevented from absorbing moisture.

At least two or more nozzles 23 are fixed to a ring-shaped pipe 22 at the end of the air supply pipe 12 facing diagonally forward on the center line in the air supply direction.
A pump 21 circulates water a stored at the bottom of the casing 9 through compound waste 25 coming out from the end.
The water supplied through the pipe 22 from the nozzle 2
Spray from step 3 and add 25% of compound waste with water a.
to fall. At this time, compound waste 25
is collected in a saucer 17 provided in the middle of the casing 9 and equipped with a wire mesh filter 18 at the bottom.
Water a passes through a wire mesh filter 18 and accumulates at the bottom of the casing 9. The accumulated water a is sprayed again from a nozzle 23 via a pipe 22 by a pump 21 provided under the casing 9.

The tray 17 is adapted to slide on a tray rail 20 provided on the wall of the casing 9, and is taken out from the transparent plate 11 provided on the casing 9 as appropriate by checking the accumulation of compound debris 25 on the wire mesh filter 18.

An exhaust port 15 with a filter 16 is provided at the top of the casing 9 to release the air inside the casing 9, and the water a sprayed inside the casing 9 is
The blocking plate 10 prevents the air from coming out from the exhaust port 15. In the figure, 19 is a take-out handle provided on the tray, 26 is a stand for the casing 9, and 27 is a ball tap for supplementary water to keep the level of water a at a constant level.

[Embodiment 2] In this embodiment, the filter 18 in the first embodiment is changed to a belt conveyor type.
That is, as shown in FIG. 3, openings 34a, 3 are formed in the front and rear casing 9 walls of the tray rail 20.
4b is formed, and a guide rail 35 protruding from both openings 34a and 34b is connected to the tray rail 2.
0, and the pedestal 26 is also provided with a guide rail 35 that protrudes from the casing 9. Rollers 36 are arranged above and below both ends of both guide rails 35.
A belt conveyor 38 with a filter function is hung through a guide rail 35, and the conveyor 38 is run by rotating one of the rollers 36 by a geared motor (not shown) provided outside the casing 9.

This traveling is performed when the compound sent into the hopper 5 is full. First, the blower 1 is stopped, the damper 28 of the opening 34a is opened along the damper guide 29 by the air cylinder 30, and then the conveyor 38 is running, and the compound waste 25 deposited on it is conveyed to the conveyor 3.
After passing the roller 36 due to the downward rotation of 8,
It leaves the conveyor 38 and falls into the waste bin 33,
accumulate. At this time, the compound debris 25 that has not fallen and remains attached to the conveyor 38 is scraped off by a scraper 31 (a rotating brush may be used) provided on the pedestal 26. In this way, the filter function of the conveyor 38 is regenerated and used again to collect the compound waste 25.

Repeat the above cycle to remove compound waste 2.
5 dust collection is performed without replacing the filter. In addition, in the figure, 32 is a cover of the belt conveyor 38.

[Effect of idea]

The present invention is configured as described above, and the compound waste, etc. sent with air from the cyclone exhaust port is dropped by water spray from the nozzle and collected by the filter, so it is different from the conventional dust collector. Compared to the previous model, there is no need for a vibrator, and there is no need for a breathable filter with a high dust collection effect such as a cloth filter, and there is no clogging, so there is no need to replace a new filter, which improves work efficiency.

Also, if the filter is a belt conveyor type,
It can be automatically carried out of the casing and removed, and has the effect of regenerating the filter function.

Further, when the extrusion molding operation of the cable jacket is stopped or completed, the damper is closed to prevent moisture from flowing into the compound container, so that the compound does not become wet.

[Brief explanation of the drawing]

FIG. 1 is a schematic cross-sectional view of one embodiment of a dust collector according to the present invention, FIG. 2 is a schematic view of the use of the same embodiment, and FIG. 3 is a schematic cross-sectional view of another embodiment. 2... compound container, 3, 7... hose, 4... cyclone, 8... dust collector, 9... casing, 10... wall board, 12... air pipe,
15...Exhaust port, 18...Wire mesh filter, 23
...Nozzle, 25...Compound waste.

Claims (1)

[Scope of utility model registration request] Hoses 3 and 7 from the container 2 of the sheathing compound of the cable sheathing extrusion molding machine pass through the cyclone 4 to the air inflow pipe 1 of the casing 9.
In the dust collector 8 which is connected to the cyclone 2 and collects dust by sending air from the cyclone 4 into its casing 9, a damper 1 for opening and closing is connected to the air pipe 12.
A nozzle 23 for spraying water into the air is provided in the casing 9, and a filter 18 for separating collected dust and water is provided below the nozzle 23, and a filter 18 above the filter 18 is provided. A dust collector characterized in that an exhaust port 15 is formed in the casing wall.