JPS5915002B2 - Flue gas dust collection desulfurization equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that collects and neutralizes fumes, dust, etc., and automatically discharges them to the outside of the machine.

Conventionally, wet type and dry type dust collectors have been used for this type of dust collector.

However, the wet method requires the use of a large amount of water, and has the disadvantage that the washing water after washing causes secondary pollution.

On the other hand, the dry method uses a special filter, resulting in expensive equipment and large equipment, and has the drawback of large pressure loss due to filter clogging.

This invention has been proposed to eliminate each of the above-mentioned drawbacks, and has the characteristics of consolidating the advantages of conventional dry-type mechanical dust collectors, filtration-type dust collectors, and wet-type dust collectors, and enhancing the synergistic effect of each other.

In other words, cylindrical filter elements are arranged coaxially, and a mechanism is attached to each filter element to always maintain its maximum dust collection ability.

Hereinafter, specific examples of the present invention will be explained in detail with reference to the drawings.

1 is a cylindrical filter element with different diameters inside 2.2
'It is a cylindrical body that houses a lid 3 for sealing on the top,
and the lower part has a bottom plate 4.

The filter elements 2 and 2' are made of metal, synthetic resin, etc., and are open at the top and have a large number of holes 5 perforated on the sides.

Further, the filter element 2'2' is concentrically mounted on a shaft 6 which is provided through the center of the main body 1, and is rotated inside the main body 1 by a motor 7 of the shaft 6.

- A sponge 8 is attached to the inner surface of the force difference 3 and slightly contacts the upper end of the filter element 1-2, 2' to seal each filter element 2, 2'.

In addition, a gas intake port 9 is formed at the center of the lid 3, and an air exhaust port 10 is formed at the periphery, and dust such as rubber is formed from the top of the lid 3 in close contact with the outer surface of each filter element 2, 2'. Scraping arm 11, backwash arm 12, dust collection liquid application arm 13
are fixed sequentially in the rotational direction of the filter element.

The dust collection liquid application arm 13 is a filter Niremen I-2, 2'
A sponge 14 or a piece of cloth can be attached in a cassette manner to the portion in contact with the outer surface of the container, and the coating liquid 15 on the outside is applied evenly.

Next, dust collection and discharge ports 17 and 17' are respectively opened in the bottom surfaces 16 of the filter elements 2 and 2'. A drain port 18.1B' is provided which coincides once with the drain port 18.1B'.

In addition, filter elements 2. A dust collecting rod 19 is provided in contact with the bottom surface of the drain port z and directly above the drain ports 18, 18' (7).

Note that 20 in the figure is a roller rod that is in contact with the outer surface of the filter elements 2, 2' and is used to regenerate the film of the dust collection liquid.

Further, the drain ports 18 and 18' are connected to an intake port 24 of a discharge tube 23 which houses a blade rotating scraper 25 attached to a rotating shaft 21 perpendicular to the shaft 6, and the dust discharge port 26 is connected to the drain port 18, 18' by the rotation of the scraper 25. It is discharged to the outside.

According to the present invention configured as described above, untreated dust entering from the gas port 9 is first guided into the filter element 2.

Here, the dust collection is carried out using the motor 7 and the shaft 6.
When the filter elements 1-2 and 2' begin to rotate, gas is introduced from the gas intake port 9 in the center of the lid 3.The gas first enters the filter element 2, and the dust-collecting liquid is applied to the sides by the dust-collecting liquid applying arm 12. Dust collection is performed when passing outside from J4L5.

At this time, the coating is regenerated by the roller rod 20 and dust is efficiently collected.

Further, the dust collecting liquid is dropped by the dust scraping arm 11 about every rotation, and the backwashing arm 12 cleans the clogging of the small hole 5.

Incidentally, the filtered gas is further subjected to dust collection by the outer filter element 2' and is discharged from the air outlet 10.

On the other hand, the collected dust dropped by the dust scraping arm 11 is collected in advance at the upper part of the drain ports 15, 15' by the dust collecting rod 19 which is in contact with the bottom surface of the filter niremen I-2, 2', and as it rotates. The dust falls through the dust collection and discharge ports 17 and 17' when it aligns with the drain ports 18 and 18' provided on the bottom plate 4 of the main body 1, and then passes through the blade rotating scraper 25 from the intake port 24 of the discharge tube 23 and is discharged. It is discharged from the outlet 26.

In addition, the rotation of the scraper 25 in the discharge pipe 23 corresponds to the amount of dust 1
This adjustment is made to always prevent the air inside the main body 1 from escaping.

As described above, in this invention, the filter elements are sequentially installed on concentric circles, and by rotating them, not only the air inside the small hole passes through, but also the collision of the waste dust due to centrifugal washing, coarse dust due to adhesion, and filtration collection. By repeating this process, dust can be collected and neutralized completely and in a short time.

Furthermore, the scraper on the discharge tube keeps the inside of the main body airtight at all times, allowing for efficient filtration.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of the invention. Figure 2 is the same as above, a longitudinal sectional view. Figure 3 is a cross-sectional view of the same as above. Figure 4 is an enlarged view of the third fixed part. FIG. 5 is a sectional view of the lower part. FIG. 6 is a sectional view of the discharge tube. Code, 1...Body, 2, 2'...Filter element, 3...M, 6-------
Shaft, 8...Sponge, 10...
Air outlet, 11...Dust scraping arm, 12...
... Backwash arm, 13 ... Dust collection liquid application arm, 11
7, 17'... Dust collection outlet, 18, 1 g
'...Drain [:I, 23...Discharge tube, 24...Intake, 25,...Scraper, 26...Dust Vent.

Claims (1)

[Scope of Claims] 1. A shaft is passed through the center of a cylindrical main body with an open top, and cylindrical filter elements with different diameters and open tops are pivotally attached to the shaft and accommodated in the main body, and the filter An airtight lid is fixed to the main body using a sponge or the like in the open upper part of the element, and a dust scraping arm, a backwashing arm, and a dust collection liquid applying arm are attached to the lid, which touch the outer wall of each filter element. Smoke exhaust with filter elements arranged sequentially in the direction of rotation, an intake in the center of the lid, an outlet on the outer periphery, a dust collection outlet on the bottom of each filter element, and a corresponding drain opening on the bottom plate of the main body. Dust collection and desulfurization equipment. 2 A shaft is passed through the center of a cylindrical main body with an open top, and cylindrical filter elements with different diameters and open tops are pivotally attached to the shaft and accommodated in the main body. For this purpose, attach an airtight lid to the main body with a sponge, etc., and then attach the dust scraping arm, backwash arm, and dust collection liquid application arm that touch the outer wall of each filter element from the lid in the direction of rotation of the filter element. An intake port is provided in the center of the lid, a discharge port is provided on the outer periphery, and a dust collection and discharge port is provided on the bottom of each filter element, and a drain port is opened in the bottom plate of the main body corresponding to this. A flue gas dust collection and desulfurization device that continuously connects a discharge tube that houses a rotary blade scraper attached to an axis perpendicular to the filter element axis.