RU2336954C1 - Filter-cyclone with gas cleaning rotary filter element - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: filer-cyclone incorporates a vertical cylindrical housing with a taper bottom furnished with a dust removal union and that feeding dusted gas flow into the said cyclone and arranged tangentially to the said housing, a cover with a union to withdraw purified gas, a rotary exhaust pipe representing a filter element and a windmill. The said windmill is fitted in the purified gas discharge union above the exhaust pipe and driven by the purified gas flow. Here note that the said windmill rotation is transmitted to the exhaust pipe by a belt and a friction gearing.

EFFECT: dust collection higher efficiency, higher reliability and longer life.

2 cl, 2 dwg

Description

The invention relates to techniques for dry cleaning of dusty gases and can be used in the chemical, food, metallurgical and energy industries.

The closest in technical essence and the achieved result to the claimed solution is a cyclone filter, comprising a vertical cylindrical body with a conical bottom, equipped with a fitting for removing dust, a rotating exhaust pipe, which is a filter element made of porous cermet, and a fitting for removing purified gas a wind wheel fixed in the bearing unit, a fitting for supplying a dusty gas stream to the apparatus, located tangentially to the housing, a cover with a connector nym fitting [RF patent №2150988 C1, IPC 7 V01D 50/00, 9/00 V04S. Cyclone filter for cleaning dusty gases / A.P. Zotov, Yu.V. Krasovitsky, V.I. Ryazhskikh, E.A. Shipilova. - Publ. 06/20/2000, Bull. No. 17]. A feature of the filter is the combined effect of a centrifugal field and filtering.

The disadvantage of the prototype is the placement of the wind wheel in a chamber with dusty gas and, as a result, the possibility of intensive wear of the wheel blades, as well as the violation of the process of screening dust particles under the action of a centrifugal field, which increases the dust load on the filter element and reduces the efficiency of dust collection.

An object of the invention is to increase the efficiency of dust collection, reliability and durability of the filter cyclone.

The technical problem is solved in that in the proposed filter cyclone with a rotating filter element for gas purification, including a vertical cylindrical body with a conical bottom, equipped with a nozzle for removing dust and a nozzle for supplying a dusty gas stream to the apparatus, located tangentially to the body, a cover with a fitting for the removal of purified gas, a rotating exhaust pipe, which is a filter element, a wind wheel, it is new that the wind wheel is located in the nozzle for exhaust cleaning gas above the exhaust pipe and is driven by a stream of purified gas, while the rotation of the wind wheel is transmitted to the exhaust pipe through belt and friction gears.

The technical result is to increase the efficiency of dust collection, reliability and durability of the filter cyclone.

Figure 1 presents a General view of the filter cyclone, figure 2 shows the location of the wind wheel.

The cyclone filter includes a vertical cylindrical housing 1 with a conical bottom 2, equipped with a nozzle 3 for removing dust, a rotating exhaust pipe, which is a filter element 4 made of porous cermet, mounted on a bearing 14, a nozzle 5 for supplying a dusty gas stream to the apparatus, located tangentially to the housing, the cover 6. In the fitting for the removal of purified gas 7 in the bearings 16 is fixed to the shaft 12, on which the wind wheel 8. By means of a belt drive, including a leading the pulley 17, the belt 9, the driven pulley 18, the rotation is transmitted to the shaft 13 mounted in the bearings 15. From the shaft 13 through the friction gear consisting of the drive wheel 10 and the driven disk 11, the rotation is transmitted to the filter element 4.

The filter cyclone operates as follows.

The dust and gas stream through the nozzle 5, which is installed tangentially to the housing 1 of the cyclone filter, enters the apparatus, moves spirally downward, separating large particles of the dispersed phase from the dispersion medium (gas), and is simultaneously filtered through the side surface and the lower end of the exhaust pipe 4. Cleaned the gas stream at the outlet to the gas outlet 7, due to its specific mechanical energy, drives the wind wheel 8. The wind wheel 8 is rotated by means of belt and friction gears. supporting pipe 4, the rotation of which causes the appearance of centrifugal forces acting on the dust sediment, which ensures continuous regeneration of the filter surface.

The proposed filter cyclone option provides:

- increasing the efficiency of dust collection;

- increasing the efficiency of the process of separation of dust and gas systems due to the unhindered movement of dust particles in the apparatus;

- reliability and durability of the device.

Claims (2)

1. Filter cyclone, comprising a vertical cylindrical body with a conical bottom equipped with a nozzle for removing dust, and a nozzle for supplying a dusty gas stream to the apparatus, located tangentially to the body, a cover with a nozzle for removing purified gas, a rotating exhaust pipe, which is a filter element, a wind wheel, characterized in that the wind wheel is located in the fitting for the removal of purified gas above the exhaust pipe and is driven by a stream of purified gas, while the rotation is windy th wheel is transmitted to the exhaust pipe through belt and friction gears. 2. The filter cyclone according to claim 1, characterized in that the porous metal ceramics coated on the filter side with nickel powder with a particle size of not more than 0.063 μm are used as the material of the filter element.

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