RU173677U1 - Dust collector - Google Patents

Abstract

The invention relates to devices for separating dispersed particles from gases or vapors using gravitational inertial or centrifugal forces by changing the direction of the flow. The dust collector comprises a housing, in the upper cylindrical part of which there is an inlet device containing a slot nozzle for introducing contaminated gas mounted tangentially to the inner surface corps. In the input device behind said slotted nozzle, pockets are made on the inner surface of the cylindrical part of the housing. The nearest, in the direction of the incoming gas flow, the wall of each of the pockets is made in the form of a ledge. The lower part of the body is made in the form of a truncated cone, facing downward. Under the input device, inside the lower part of the housing, coaxial to its vertical axis is the outlet of the purified gas. The housing of the output device is conical, with the top pointing down. One input of the output device is made in the form of an opening in the lower part of its housing, and the other inputs are made in the form of at least four vertical slots located along the generatrix of the housing of the output device. In the upper part of the output device, there is a device for removing purified gas, and a dust collection bin is attached to the lower part of the dust collector body. The task is to increase the efficiency of collecting fractions of light, easily planning dust particles, while simultaneously collecting coarse and fine particles.

Description

The invention relates to devices for separating dispersed particles from gases or vapors using gravitational inertial or centrifugal forces by changing the direction of flow.

The most common dust collectors using inertial forces are cyclone type.

In cyclone dust collectors, dispersed particles fly under the influence of inertia and encounter obstacles, for example, the walls of cyclones, lose energy and are collected in dust collectors by gravity. Such dust collectors pick up large dispersed particles well, but fine dust, which has a small mass, is usually carried away by the outgoing gas stream.

In the design of the cyclone, copyright certificate SU 1271578, publication 11/23/1986, IPC V04C 5/12 describes the design of the dust collector, which includes a housing with a tangential inlet and an inertial separator consisting of a set of convex plates. The space between the convex plates forms vertical slots. The inertial separator is rotatably mounted. Dust-free air enters through the bottom opening of the separator and through vertical slots. In the lower part of the cyclone a hole for collecting dust is made.

A device for a cyclone dust collector according to the application JPS 6219269, publication 01/28/1987, IPC B04C 5/12. In a cyclone dust collector, a pipe discharging purified gas contains a plurality of louver cutouts. An opening for collecting dust is made in the lower part of the dust collector body.

A device is known according to the application JP 2006346538, publication 12.28.2006, IPC B04C 5/12. The dust collector includes a housing with a tangential inlet and an outlet device for purified gas. On the generatrix of the cylinder of the output device, slots are made for the entrance of the purified gas. At the bottom of the output device, a hole is made for the entrance of the purified gas. An opening for collecting dust is made in the lower part of the dust collector body.

The closest analogue is the design of the dust collector according to the invention patent RU 2554655, publication 06/27/2015, IPC B04C 5/12. The dust collector comprises a housing, in the upper cylindrical part of which an input device is made, comprising a slotted nozzle for introducing contaminated gas, which is installed tangentially to the inner surface of the housing. Pockets are provided in the input device behind said slot nozzle for introducing contaminated gas on the inner surface of the cylindrical part of the housing. The nearest, in the direction of the incoming gas flow, the wall of each of the pockets is made in the form of a ledge. The lower part of the body is made in the form of a truncated cone, facing downward; under the input device, inside the housing, coaxially with its vertical axis, is located the output device of the purified gas. The housing of the outlet device is conical, with the apex pointing downward, and includes a purified gas collection chamber and purified gas inlets into said chamber made in the form of a plurality of annular channels.

EFFECT: invention makes it possible to increase the efficiency of capturing the fractions of light, easily planning dust particles, with the simultaneous capture of coarse and fine particles.

This design is quite effective, one structurally complex enough. In addition, there is always a need to increase the capture of coarse and fine fractions of dust, including light dust particles.

The proposed utility model solves the problem of increasing the efficiency of capturing the fractions of light, easily planning dust particles, while simultaneously capturing coarse and fine particles.

The inventive dust collector comprises a housing, in the upper cylindrical part of which an input device is made, comprising a slotted nozzle for introducing contaminated gas, which is installed tangentially to the inner surface of the housing. In the input device behind said slotted nozzle, pockets are made on the inner surface of the cylindrical part of the housing. The nearest, in the direction of the incoming gas flow, the wall of each of the pockets is made in the form of a ledge. The lower part of the body is made in the form of a truncated cone, facing downward. Under the input device, inside the lower part of the housing, coaxial to its vertical axis is the outlet of the purified gas. The housing of the output device is conical, with the top pointing down. One input of the output device is made in the form of an opening in the lower part of its housing, and the other inputs are made in the form of at least four vertical slots located along the generatrix of the housing of the output device. In the upper part of the output device there is a device for removing purified gas, and a dust collection bin is attached to the lower part of the dust collector body.

In the particular case of performing vertical slots of the output device have a width of from 3 to 6 mm

In addition, the vertical slots are made at an angle to a vertical plane passing through the axis of the dust collector.

The utility model is illustrated by drawings.

In FIG. 1 shows a section of a dust collector.

In FIG. 2 shows a section AA of the upper part of the housing.

In FIG. 3 shows a section BB of the outlet device of the purified dust collector gas.

In FIG. 4 shows a diagram of the air flow of the dust collector.

The dust collector (Fig. 1 - Fig. 3) contains a housing 1, in the upper cylindrical part of which an input device 2 is made. The input device 2 includes a slotted nozzle 3 for introducing contaminated gas mounted tangentially to the inner surface of the housing 1. On the inner surface of the cylindrical part of the housing 1 pockets 4 are made (Fig. 2), the closest wall of each of the pockets 4 in the direction of the incoming gas stream is made in the form of a ledge 5. The lower part 6 of the housing 1 is made in the form of a truncated cone, with its apex facing down. The body of the outlet device 7 of the purified gas is made conical, with the top pointing down.

One input of the output device 7 is made in the form of a hole 8 in the lower part of its housing 1. Other inputs are made in the form of vertical slots 9, which can be made in the form of slots located along the generatrix of the housing of the output device. There can be four or more of these slots 9. Slots 9 should have a width in the range of 3 to 6 mm. The best effect is given by slots 9 from 4 to 5 mm. Slots can be made at an angle to a vertical plane passing through the axis of the dust collector (not shown in the figures). In this case, the slot should not be directed towards the spiral flow in the housing 1 of the dust collector.

In the upper part of the device is a device for removing 10 purified gas. A hopper 11 for collecting dust is attached to the lower part of the housing 1.

The dust collector operates as follows. Contaminated gas is supplied through the slotted nozzle 3 into the housing 1 using a blower fan. The gas flow is twisted inside the upper part of the housing 1 into a spiral, while a vacuum is created in the zone of the ledges 5. The vortex flows in the pockets 4 help to reduce the speed of dust particles, which along the walls of the pockets 4, and then along the wall of the lower part 6 of the housing 1 fall into the hopper 11. Due to the expansion of the volume in the lower part of the housing 1, the gas flow decreases its speed, and fine dust also settles in hopper 11. However, light dust can be weighed throughout. In order for only purified gas to mainly enter the outlet device 7 and two inlets are made. The cleaned gas enters the outlet through an opening 8 at the bottom in the center of the casing, where the flow has the lowest velocity and light particles are generally planned down. Many vertical slots 9 located along the generatrix of the output device 7, form other inputs of the output device. In this part of the dust collector body 1, the flow rate is still quite large and light particles follow with the flow. Purified gas enters these narrow slots. Due to the fact that part of the purified gas is taken through the slots, the flow rate below, at the inlet 8, becomes lower and more purified gas from light particles gets there. Next, the purified gas enters the device 10 for the removal of purified gas and can be discharged into the atmosphere.

The dust collector can be used in various fields of technology where it is necessary to clean sufficiently large volumes of dusty gas.

The claimed design of the dust collector allows you to capture, as large and medium fractions of dust, fine dust and even easily planning dust particles. The design is efficient, easy to manufacture and technologically advanced.

Claims (3)

1. A dust collector, characterized in that it comprises a housing, in the upper cylindrical part of which an input device is made, comprising a slotted nozzle for introducing contaminated gas mounted tangentially to the inner surface of the housing, pockets are made in the input device behind said slotted nozzle on the inner surface of the cylindrical part of the housing , the closest wall of each of the pockets in the direction of the incoming gas stream is made in the form of a step, the lower part of the body is made in the form of a truncated cone, facing with its top down, under the input device inside the lower part of the housing coaxially with its vertical axis is the outlet of the purified gas, the housing of the output device is conical, with the apex pointing down, one input of the output device is made in the form of an opening in the lower part of its housing, and other inputs made in the form of at least four vertical slots located along the generatrix of the housing of the output device, in the upper part of the output device there is a device for removing purified gas, and to the bottom part of the dust collector body attached to the dust bin. 2. The dust collector according to claim 1, characterized in that the said vertical slots of the output device have a width of 3 to 6 mm. 3. The dust collector according to claim 1, characterized in that the said vertical slots are made at an angle to a vertical plane passing through the axis of the dust collector.

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