RU146640U1 - DUST AND GAS AERODYNAMIC ASSEMBLY FOR DUST CLEANERS - Google Patents

Abstract

A dust-gas aerodynamic unit for dust-collecting machines, comprising a fan blower of air with a drive, a cylindrical vortex working chamber with a system of nozzles for passing a working gas stream, characterized in that the dust-gas aerodynamic unit contains a storage unit for a heavy fraction of pollutants, a dust collector for concentrating the dust fraction with the possibility of a secondary use and a filter chamber, and the dust and gas aerodynamic unit is equipped with a reservoir with a foaming fluid bone promoting the removal of dust particles in the cylindrical vortex chamber, besides pylegazovyh aerodynamic regulator assembly includes a dust sensor for signaling exceeding of the current of dust filtered air at five to twenty times the concentration of dust.

Description

The utility model relates to road construction and is a dust and gas aerodynamic unit for dust collecting machines, which is designed to clean solid surfaces from debris, sand and gravel mixtures, dust, estimates and liquids.

Known pick-up sweeper mounted on the road surface [1], comprising a housing, a discharge and a suction nozzle, on the lower edge of the last of which is installed an apron that rotates around a transverse axis. The apron is made of parts interconnected with the possibility of free longitudinal movement of one of them upon contact with the road surface relative to the other, and in the suction nozzle the lower guide surface is made of a nozzle with a wave-like shape in the longitudinal direction with holes in the central zones of the depressions for communication with the atmosphere.

The disadvantage of the sweeper picker is that in this design it is difficult to create a stable aerodynamic regime of air flows inside the receiving device, in the presence of polydispersity and heterogeneity of materials in the estimate, its further use, and in some cases disposal.

A known machine for cleaning road surfaces [2], containing a hopper for garbage, a frame made with the possibility of movement on the road surface. On the frame are installed: a swirl chamber with a longitudinal slit hole on the side of the road surface; injection and suction nozzles mounted on opposite sides of the slotted hole and interfaced with the generatrix of the vortex chamber; a discharge device connected to the discharge nozzle. At the same time, a device for separating garbage from the air stream is installed in the garbage collection bin, and the suction nozzle is communicated with the hopper by a pipeline. The discharge and suction nozzles of the machine are slotted. The suction nozzle is in communication with the device for separating debris through the pipeline. The discharge device is connected to the discharge nozzle through a diffuser. The machine further comprises a water tank and a pump.

The disadvantage of the machine for cleaning pavements is that it has large dimensions. The large length reduces the maneuverability of the machine and complicates the cleaning of hard coatings of intra-quarter and yard areas, pavement surfaces, stagnant zones, at the joints of horizontal and vertical planes.

The closest in technical essence is a machine for cleaning hard coatings, equipped with an ejector filter [3], consisting of an ejector with a suction chamber and a nozzle, a fine filter and a gas flow regulator. The ejector nozzle through the gas flow regulator is connected to the outlet channel of the fan blower, and the ejector suction chamber through the intake channel is connected to one of the sections of the two-section coarse filter, which is equipped with a removable waste bin. The second section of the filter is connected to the output channel of the fan blower, one of the branches of the output channel of which is connected by a nozzle to the input of the working vortex chamber, the garbage collection channel of which is connected to a removable waste bin. Moreover, a channel with nozzles for ejecting washing liquids is introduced into this branch, which is connected to a reservoir located on a frame that is mounted with the possibility of vertical movement, and the vortex working chamber is made three-section with the ability to rotate the side sections in the horizontal plane using a hydromechanical drive. High strength alumina ceramics is applied to the inner surface of the vortex working chamber. The removable waste bin is equipped with removable storage tanks. The two-section coarse filter and the fine filter are replaceable.

The disadvantage of the machine for cleaning hard coatings is the difficulty of aerodynamically linking two parallel sections of the system between the waste bin and the suction chamber of the ejector. Regulation of the aerodynamic mode by the gas flow rate regulator is possible only by increasing the resistance of the entire network, which leads to an increase in energy consumption. The sophisticated design of air ducts and various apparatuses also leads to an increase in energy use. The design of the expansion chamber is such that deposits of fine dust will be created in it. The design of the ejector greatly complicates the working body of the machine. The two-section filter 10 will be unevenly contaminated, part “b” associated with a fan blower is subject to more pollution, where, as a rule, the rate of absorption of pollutants is higher than in the ejector chamber, where estimates will be passed after passing part “a”, which increases the cost hard surface cleaning operations.

Technical task: dust and gas aerodynamic unit for dust cleaning machines should contribute to the maximum cleaning of the contaminated surface; have a long period of work; allow to separate pollutants into fractions, which expands the possibilities of their disposal; reduce the cost of cleaning hard surfaces; reduce environmental damage in urban areas. The use of a regulating dust sensor, which indicates the excess of the current dust content of the filtered air at a concentration of five to twenty times, should save foaming liquid.

The essence of the utility model. Dust-and-gas aerodynamic unit for dust-collecting machines, contains: a fan blower of air with a drive, a cylindrical vortex working chamber with a system of nozzles for passing a working gas flow, a storage device for a heavy fraction of pollutants, a dust collector for concentration of a dust-like fraction, with the possibility of recycling and a filter chamber. Moreover, the dust and gas aerodynamic unit is equipped with a reservoir with a foaming liquid, for maximum removal of dust particles into a cylindrical vortex chamber, moreover, the dust and gas aerodynamic unit contains a control dust sensor, which signals the excess of the current dust content of the filtered air at five to twenty times the concentration of dust.

Brief description of the drawing. In FIG. shows a general view of the dust and gas aerodynamic unit for dust collecting machines. Dust and gas aerodynamic unit contains: fan supercharger 1 with drive 2; cylindrical vortex working chamber 3; branches 4, 7, 8, 10, 13, 16, 23; drive 5 with automatically opening shutters 6; dust collector 9; discharge channel 11; channel 12 having a tangential direction; filter chamber 14; fine filter 15; a reservoir 18 with a stand 17; a channel passing a foaming liquid 19; valve 20; dust sensor 21; ejector 22; nozzle 24; heavy fraction 25; pulverulent fraction 26.

The device operates as follows.

A dust-gas aerodynamic unit containing a fan supercharger 1 with a drive 2, which creates an air stream capable of capturing pollutants from a solid surface using a cylindrical vortex working chamber 3 and distributing the heavy fraction along branch 4 to the accumulator 5, where it can automatically open the shutters 6 disposed of later as garbage, and the dust fraction along branches 7 and 8 enters the dust collector 9, where after removal it can be used again, for example, when backfilling a foundation pit , trenches, the device of road paintings and other construction purposes, the air flow passing through the branch 10 and through the fan blower 1 enters the discharge channel 11 and is distributed along the branches 12 and 13. The filter 12 includes a branch 12 having a tangential direction, which allows the air flow to swirl and clean using a fine filter 15, the cleaned air stream partially connects to the atmospheric air, and partially, getting into the branch 16, connects to the contaminated air mass coming out of the branches 13. In the branch junction zone 16 and 13 is a dust sensor 21, signaling the exceeding of the current of dust filtered air at twenty-five times the dust concentration. The assembly is equipped with a stand 17, where the reservoir 18 is located, which contains the liquid that enters the channel 19 through the foaming grate. When the sensor 21 is activated, the valve 20 opens and the foaming liquid is supplied through the channel 19 and the ejector 22, where the foaming liquid increases the degree of purification of the air stream . On the branch 23, which goes to the nozzle 24, coupled with the inlet of the vortex working chamber 3, the air flow, capturing pollutants, again passes through the dusty gas aerodynamic unit, where the concentration of the heavy fraction 25 in the accumulator 5 and the dust fraction 26 in the dust collector 9 occurs.

The use of a dust and gas aerodynamic unit allows the dust collector to have a long operating mode, since the pollutants are concentrated in two elements: the accumulator (heavy fraction) and the dust collector (dust fraction), disposal does not require special maintenance skills, it can occur during the working process.

A dust-collecting machine equipped with a dust-and-gas aerodynamic unit allows not only daily high-quality cleaning of urban areas, but is also effective after construction and emergency repairs, it can be used in cramped conditions on densely-built areas, widespread use will improve the environmental component of urban agglomeration.

Information sources

1. Pat. RF №2025555. Pickup sweeper / A.P. Svidinsky, A.I. Stelmashenko, A.G. Beavers. - Applicant and patent holder - Scientific-Production Association of construction and municipal engineering ″ Stroykommash ″. Claim 06/03/1991; Publ. 12/30/1994.

2. Pat. for utility model of the Russian Federation No. 32787. Pavement cleaning machine / Yu.I. Zavyalov - Applicant and patent holder - Limited Liability Company ″ Planet-K ″. Claim 05/14/2003; Publ. 09/27/2003.

3. Pat. RF №2147640. Machine for cleaning hard surfaces / V.A. Zakrevsky, V.B. Solomyansky, D.M. Rostovtsev - Applicant and patent holder - Russian Ceramics Research and Production Limited Liability Company. Claim 02.17.1998; Publ. 04/20/2000. (prototype).

Claims (1)

A dust-gas aerodynamic unit for dust-collecting machines, comprising a fan blower of air with a drive, a cylindrical vortex working chamber with a system of nozzles for passing a working gas stream, characterized in that the dust-gas aerodynamic unit contains a storage unit for a heavy fraction of pollutants, a dust collector for concentrating the dust fraction with the possibility of a secondary use and a filter chamber, and the dust and gas aerodynamic unit is equipped with a reservoir with a foaming fluid bone promoting the removal of dust particles in the cylindrical vortex chamber, besides pylegazovyh aerodynamic regulator assembly includes a dust sensor for signaling exceeding of the current of dust filtered air at five to twenty times the concentration of dust.

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