RU2407855C1 - Device for snow removal - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: device consists of container with cover; also, container is installed on vehicle. Further, the device consists of unloading work tool at an end lower part, of an autonomous heat generator, of a system for snow processing, of a tank with reagent, of a container cover without heat insulation and of an air inlet. The container is hinged on the vehicle and is equipped with a mechanism of its tilt for removal of melt water and/or wet snow or products left after filtration. A vacuum transporter is additionally mounted on a chassis of the vehicle. The vacuum transporter with its lower part is connected to a universal heated head of snow pickup. With its upper part the vacuum transporter is connected with the container without heat insulation. With its middle part the vacuum transporter is connected with the system of heating from exhausts from an internal combustion engine and the autonomous heat generator. The autonomous heat generator supplies hot air into the container without heat insulation via an air duct. The autonomous heat generator supplied exhausts to the system of snow processing and heating of the vacuum transporter with the universal heated head. The tank with reagent is coupled with an electrical volume pump by means of an intake branch. The electrical volume pump supplies reagent under pressure to a sprayer via a successively connected high pressure pipeline. The sprayer is installed in an upper part of the container without heat insulation. The cover of the container without heat insulation contains a floating valve which operates when volume of the container without heat insulation is filled with melt water or with mixture of melt water with snow over 100 % . The water intake consists of an inbuilt float valve of the vacuum pump operating on melt water or mixture of melt water with snow.

EFFECT: raised efficiency of snow pick-up, reduced time for snow processing into melt water and improved technical characteristics for snow removal.

9 cl, 6 dwg

Description

The invention relates to the field of cleaning and processing of snow and is intended for use in the field of municipal services for the maintenance of intra-quarter territories, market squares, playgrounds, courtyard sports complexes, sidewalks of cities and urban-type settlements for cleaning and processing snow into melt water due to reagent, melt water, the hot surface of the coil of the exhaust system, the exhaust itself and hot air from an autonomous heat generator.

There is a method of snow removal and a device for snow removal [1], which consists in the fact that directly at the place of snow removal the snow is loaded into a heated insulated tank mounted on a self-propelled vehicle with an unloading device, the self-propelled vehicle is moved, the loaded mass is heated and the snow is mixed with melt water with a paddle mixer, which rotates reversely relative to the axis longitudinally located in the tank, then the tank is unloaded, while the inner walls of the tank and preheated or during the process of loading the snow to a temperature of 120-180 ° C until melt water is formed from at least part of the snow, before stirring, set the speed of rotation of the mixer inversely with the density of the loaded snow or in direct proportion to the intensity of the load of the snow, loading is done by a loader connected to the vehicle for the loading period, preferably with a rigid hitch.

The snow removal device comprises a heat-insulated tank mounted on a self-propelled vehicle with a loading hatch and with walls heated to a temperature of 120-180 ° C by flame tube burners, with a loading device for the bottom end mounted in the cavity of the tank on the longitudinal axis of a blade mixer of reverse action, while it is equipped with a device for supplying hot gases from the burners of the flame tubes after they have heated the tank to the loading hatch in the snow supply zone, part of the length of the unloading device in autonomous heating system comprises, preferably with hot gases, wherein the container is pivotably mounted on the vehicle and provided with a mechanism for the inclination towards the discharge means for removing the melt water and / or snow or wetted remaining after filtration products.

The disadvantage of this method is that for the implementation of this method requires the simultaneous interaction of the loader and a self-propelled vehicle with a mounted heated insulated tank, as well as the restrictions imposed by a rigid coupling when moving along the radius.

Of the known closest in technical essence is the "method of snow removal" (patent RU 2204648 C1) [1], according to which snow is removed and processed directly at the place of removal, the snow is loaded into a heat-insulated heated tank mounted on a self-propelled vehicle with an unloading device, some of which are preferably heated with hot gases. Snow loading is carried out by a loader connected to the vehicle for the loading period, preferably with a rigid coupling.

Snow removal device - prototype [1] contains a heat-insulated tank mounted on a self-propelled vehicle with a loading hatch and with walls heated to a temperature of 120-180 ° C by flame tube burners, with a bottom end loading device mounted in the cavity of the tank on the longitudinal axis a paddle mixer of reverse action, while it is equipped with a device for supplying hot gases from the burners of the flame tubes after they have heated the tank to the loading hatch in the snow supply zone, part of the unloading length LfTetanus device comprises a heating system, preferably with hot gases, wherein the container is pivotably mounted on the vehicle and provided with a mechanism for the inclination towards the discharge means for removing the melt water and / or snow or wetted remaining after filtration products.

The disadvantage of the method and device taken as a prototype is that both in terms of the method of snow removal, and in the part of devices that implement the known method of snow removal and processing, they do not provide sufficient efficiency of the process of snow removal and processing into melt water while reducing the required this is material costs, the absence of a rigid coupling or an additional snow loader.

The technical result is: increasing the efficiency of snow selection through the use of a universal heated snow pick-up nozzle for a vacuum conveyor, preventing icing of the universal heated nozzle and a vacuum conveyor when selecting and transporting snow due to the heating of the inner walls with exhaust gases from an internal combustion engine, increasing the efficiency of snow processing in melt water in a container without thermal insulation due to reagent, impact of powerful jets of thaw water, hot surface of coil exhaust system, the exhaust gases themselves and hot air from the auxiliary heat source.

In a device for cleaning snow containing a tank mounted on a self-propelled vehicle without heat insulation with a cover, with a discharge device in the bottom end, the tank is pivotally mounted on the vehicle and equipped with a tilt mechanism to remove melt water and / or wet snow or remaining after product filtration according to the invention further comprises tray brushes snow estimates, a universal heated nozzle for snow selection of a vacuum conveyor, vacuum a pump, a heating system for the inner walls of the nozzle for selecting snow and a vacuum conveyor with the exhaust gases of an internal combustion engine, a heating system for a changing volume of a tank without thermal insulation by a stream of hot air, a melt water circulation device, a drainage pump connected by a hose to the hose, and a reagent supply system.

This combination of new features with the known allows you to solve the technical problem, improve the technical characteristics of the claimed device. a loader connected to the vehicle, a rigid coupling for the loading period, thermal insulation of the tank, paddle mixer, reversibly rotating relative to the axis longitudinally located in the tank, and the flame tube burner become unnecessary.

Increases the productivity of snow selection through the use of a universal heated nozzle snow selection to prevent the formation of ice.

The time for processing snow into melt water is reduced by transporting snow through a vacuum conveyor with a heating system for the inner walls and the snow itself with exhaust gases from an internal combustion engine and an autonomous heat generator.

The productivity of processing snow into melt water in a tank without thermal insulation increases due to the impact of powerful jets of melt water supplied by a drain pump from the hose, reagent, the hot surface of the exhaust coil of the exhaust system, the exhaust gases themselves and hot air from an autonomous heat generator.

The figure 1 shows a "device for cleaning snow", which contains a vacuum conveyor mounted on the chassis of a self-propelled vehicle, a tank without insulation, a system for processing snow into melt water, an autonomous heat generator according to the invention further comprises tray brushes for snow estimates, a universal heated nozzle for selecting snow vacuum conveyor, heating system of the inner walls of the vacuum conveyor with exhaust gases of an internal combustion engine, heating system from the changing volume of the tank without thermal insulation by the flow of hot air, the melt water circulation device, the reagent supply system, the mechanism of rotation of the tank without thermal insulation relative to the horizontal axis by an angle of more than 90 °.

The device operates as follows. When the shutter 1 is turned from position I to position II, the engine exhaust gases are directed to the exhaust gas heating system 7 by heating the coil 5 installed on the bottom of the tank without thermal insulation 6, the cavity 21 of the vacuum conveyor 4, formed by the inner walls of the outer pipe 22 and the outer pipe walls internal 23 and the changing volume of the tank without thermal insulation 6 for thermal effects on incoming snow.

The inclusion of the hydraulic actuator 11 of the vacuum pump 12 provides, through the filter element 13 in the duct 14, a vacuum in the tank without thermal insulation 6 and a vacuum conveyor 4 connected in series with it with a universal heated snow pick-up 3, which evens out the rarefied pressure region over the area covered by it.

The inclusion of an autonomous heat generator 15 provides heating of the air flow entering through the hot air duct 16 with a safety valve 41 into the tank without insulation 6, exhaust gases entering the exhaust coil, exerting a thermal effect on the incoming snow with a changing volume of the tank without insulation 6.

The inclusion of the hydraulic actuator 17 provides rotation of the tray brushes 2, moving the estimate of snow from the cleaned surface to the universal heated nozzle 3 of snow selection. With the passage of the universal heated nozzle 3, over the estimate of snow due to rarefied pressure, the estimate of snow moves from the cleaned surface through a series-connected vacuum conveyor 4 to the tank without thermal insulation 6.

The exhaust gases of the internal combustion engine 18, due to the rotation of the damper 1 into the exhaust gas heating system 7, formed by a gas line 19 connected in series, an exhaust gas coil 5 from rectangular pipes laid on the bottom of the tank without insulation 6, and a cavity 21 of the vacuum conveyor 4, formed by the inner walls of the outer pipe 22 and the outer walls of the inner pipe 23 of the vacuum conveyor 4, rigidly interconnected by a spiral tape partition 20 of perforated metal, carry out their heating, leading to melting snow. The exhaust gases of the internal combustion engine 18 emerging from the cavity 21 formed by the inner walls of the outer pipe 22 and the outer walls of the inner pipe 23 of the vacuum conveyor 4 are entrained due to rarefied pressure through the vacuum conveyor 4 into the container without thermal insulation 6, melting the latter.

A working autonomous heat generator 15 provides heating of the air flow passing through the hot air duct 16 with a safety valve 41, heating and melting the snow in a changing volume of the tank without thermal insulation 6.

When you turn on the electric volumetric pump of the gear type 24, installed in the tank 25, the reagent is supplied under pressure through a pressure reducing valve 26 connected in series with the high pressure pipe 27 and the nozzle 28 located under the cover 29 into the container without thermal insulation 6. The nozzle 28 is sprayed reagent under pressure inside the tank without heat insulation 6 on the snow, melts the latter.

The inclusion of a centrifugal electric drainage pump 30, mounted on the plane of the exhaust coil 5 from rectangular pipes, processes the snow into melt water by the impact of powerful jets of melt water supplied from the hose 31 installed under the lid 29 of the tank without insulation 6, and provides circulation melt water inside the latter.

Prevention of jamming of the drainage pump is carried out by a garbage-retaining grill 32 installed in the tank without thermal insulation 6, above the inlet pipe 33 of the centrifugal type drainage pump 30.

Prevention of overfilling of the tank without thermal insulation 6 with melt water above the maximum level is carried out by a float valve 34, blocking the supply of working fluid to the hydraulic actuator 11 of the vacuum pump 12.

The drain of melt water after processing the snow from the tank without insulation 6 is carried out by opening the shut-off valve 35 on the drain pipe 36, installed at the same level with the inlet pipe 33 of the drainage pump 30.

In the factory, JSC "Auto Parts" was created a mock of the inventive device and tests were performed that showed the efficiency of the proposed method and device.

The proposed "device for snow removal" provides a technical effect and can be used in the field of municipal services for the maintenance of intra-quarter territories, market squares, playgrounds, courtyard sports complexes, sidewalks of cities and urban-type settlements, for cleaning and processing snow into melt water.

In Fig 1. schematically shows a device mounted on the chassis of a self-propelled vehicle.

1 - exhaust gas damper;

2 - tray brushes;

3 - universal nozzle for selecting snow;

4 - vacuum conveyor;

5 - a coil of exhaust gases;

6 - capacity without thermal insulation;

7 - exhaust gas heating system;

8 - melt water circulation device;

9 - reagent supply system;

10 - heating system of the changing volume of the tank with hot air;

11 - hydraulic drive of a vacuum pump;

12 - a vacuum pump;

13 - filter element;

14 - air duct of the vacuum pump;

15 - autonomous heat generator;

16 - duct hot air;

17 - hydraulic brush;

18 - internal combustion engine;

19 - gas pipeline;

20 - spiral tape partition;

21 - the cavity of the conveyor;

22 - outer pipe and its inner walls;

23 - inner pipe and its outer walls;

24 - electric volumetric pump;

25 - tank;

26 - pressure reducing valve;

27 - reagent high pressure pipeline;

28 - nozzle;

29 - capacity cover;

30 - centrifugal type drainage pump;

31 - hose;

32 - trash guard;

33 - pipe inlet drainage pump;

34 - float valve;

35 - stopcock;

36 - drain pipe;

37 - air intake;

38 - bellows pipe;

39 - corrugated pipe;

40 - melt water pipeline;

41 - safety valve;

42 - the chassis.

Information sources

1. Patent RU 2204648 C1, 7 ЕНН 5/10.

Claims (9)

1. A device for cleaning snow containing a tank mounted on a self-propelled vehicle with a lid, with an unloading device in the bottom end, the tank being pivotally mounted on the vehicle and equipped with a tilt mechanism to remove melt water and / or wet snow or filter residues products, characterized in that on the chassis of the self-propelled vehicle, a vacuum conveyor is additionally mounted, connected by the lower part to the universal heated nozzle pa snow, the upper part with the container without thermal insulation and heating from the middle part of the exhaust system of the internal combustion engine and auxiliary heat source; an autonomous heat generator supplying hot air through a hot air duct to a container without thermal insulation, and exhaust gases to a snow processing and heating system of a vacuum conveyor with a universal heated nozzle; snow processing system; a reagent tank connected by an intake pipe to an electric volumetric pump that feeds under pressure through a series-connected high-pressure pipe to the nozzle installed in the upper part in the tank without thermal insulation; tank lid without thermal insulation with a float valve from filling the tank volume without thermal insulation with over 100% melt water or a mixture of melt water with snow; air intake with built-in float valve of the vacuum pump from melt water or a mixture of melt water with snow. 2. The device for snow removal according to claim 1, characterized in that the vacuum conveyor is made of two parts in the form of telescopic pipes interconnected by a metal double bellows pipe, and the inner and outer pipes are rigidly interconnected by a spiral tape partition made of perforated sheet metal . 3. The device for snow removal according to claim 2, characterized in that the vacuum conveyor is equipped with a heating system for exhaust gases passing in the space between the inner and outer pipes. 4. The device for snow removal according to claim 1, characterized in that the universal heated nozzle for the selection of snow of a vacuum conveyor is made with heating the inner and outer walls that prevent the formation of ice. 5. The device for snow removal according to claim 1, characterized in that a container without heat insulation with exhaust coils installed on the bottom of the exhaust gas of an internal combustion engine and an autonomous heat generator is used as a container for combined snow processing, melt water discharge and sediment removal. 6. The device for snow removal according to claim 5, characterized in that rectangular pipes are used as exhaust coils installed at the bottom of the tank without thermal insulation. 7. The device for snow removal according to claim 1, characterized in that a container without heat insulation with a rotation mechanism relative to the horizontal axis at an angle of more than 90 ° is used as a tank for the combined processing of snow, draining melt water and removing sediment. 8. The device for removing snow according to claim 1, characterized in that a container without heat insulation with an integrated drainage pump for melt water circulation and snow processing is used as a tank for combined snow processing, melt water discharge and sediment removal. 9. The snow removal device according to claim 1, characterized in that a hot air duct with a float valve is mounted in the tank without heat insulation for combined snow processing, draining melt water and removing sediment to prevent ingress of melt water.

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