RU44690U1 - SNOW MELTING DEVICE - Google Patents

Abstract

The utility model relates to the cleaning of roads from snow mass and can be used in municipal services, transport and industrial enterprises. A device for forced melting of snow includes a chamber for receiving and melting snow mass, a heating device, pipelines for supplying coolant and discharging melt water, a device for settling water and discharging sludge. The heating device is an autonomous steam-generating installation, which is in communication with a heat exchanger for heating the water supplied to the snow receiving and melting chamber. The device for sludge and drainage of sludge is made in the form of at least one settling chamber in communication with the specified reception chamber, and through a circulation pump and a sludge cleaning device with a pump for supplying melt water to the heat exchanger. Sludge-cleaning device is made in the form of interconnected hydrocyclone, sedimentation centrifuge and a tank for purified water, in communication with a pump for supplying water to the heat exchanger. The reception chamber is divided by a mesh partition into a snow melting feed zone and a heated water supply zone. The coolant supply pipe is equipped with a manifold with hydraulic monitor nozzles mounted in the upper part of the heated water supply zone. The lower part of the reception chamber can be made with a two-sided slope, equipped with a grill for trapping large debris and communicated with a screw conveyor, at the output of which a slide gate is installed. In addition, this device has a device for regulating the water level in the receiving and precipitation chambers. Feed line

the heat carrier is equipped with a valve and a flexible hose for washing the units of the device. 9 p.p. 3 Fig.

Description

The inventive utility model relates to the field of cleaning roads from snow mass and can be used in municipal services, transport and industrial enterprises.

Known devices are based mainly on the following basic technology: warm water is fed into the thawing chamber (usually with a temperature of more than + 10 ° С) and snow is filled from the transporting vehicles. Melt water with a temperature of less than + 5 ° C is diverted to the sewer, and mechanical impurities. which are usually present in the snow, periodically removed from the chamber. Water for melting snow can be supplied from industrial drains or from a river.

For example, in the patent of the Russian Federation No. 2197577, class. E 03 F 5/02, 2001, a non-flowing reservoir connected by channels to a river. River water with a temperature of 4-6 ° C is passed through flowing pipes and mud is sedimented. Snow melts under the influence of the temperature difference between river water and snow.

Numerous well-known technical solutions of devices for forced snow melting are aimed primarily at intensifying the melting process and minimizing operating costs. The devices differ in the method of heating water or in the type of intensifier of melting snow, eg infrared emitters (US Pat. RF No. 2226591, class E 03 F 5/02, 2002) or immersion burners (ed. St. USSR No. 1020701, class E 01 H 5/10, 1983).

As a prototype of the claimed utility model, a device for forced snow melting according to the patent of the Russian Federation No. 2173744, class. E 01 H 5/10, 2000

This device includes a snow mass receiving and melting chamber, a heating device (immersion burners powered by diesel fuel), coolant supply pipelines (products

combustion of fuel) and drainage of meltwater, a device for sedimentation of meltwater and drainage and removal of sludge. One compartment of the snow receiving and melting chamber is filled with snow, and the other with process water.

Then they light the submersible burners, start the blower and the fuel pump and at the same time light the gas igniter. The combustion products from the combustion chamber of an immersion burner “bubble” through the water, intensively heating the above layers of water. When burning submersible burners, a "cold boiling" of the liquid and an oscillatory-wave process occur. The snow melts actively at the burners. With a separate pump, the heated fluid layers from the burners are transferred to the discharge pipe and sent through the nozzles to snowballs, as a result of which the snow melts intensively.

With a number of advantages of the installation made according to the above prototype, it also has a number of significant disadvantages, of which the main ones are:

1) the complexity and multi-unit design, reducing its reliability and complicating its maintenance and operation;

2) the unsolved problem of the effective removal of sludge from melt water, as a result of which environmental problems may arise;

3) increased fuel consumption during the operation of submersible burners and a significant emission of harmful combustion products.

The technical problem, the solution of which is claimed by the claimed utility model, is to eliminate these drawbacks and increase the efficiency of the device.

The solution to this problem is achieved by the fact that the heating device is made in the form of an autonomous steam generator installation, which is in communication with a heat exchanger to heat the water supplied to the snow receiving and melting chamber. In addition, devices for sludge and drainage of sludge are made in the form of at least one settling chamber in communication with said chamber for receiving and melting snow mass, and, on the other hand, through a circulation pump and a sludge cleaning device with a pump for supplying melt water to said heat exchanger . The sludge-cleaning device is made in the form of a hydrocyclone communicated with each other, a precipitation centrifuge and a tank of purified water, communicated in

in turn, with a pump for supplying melt water to the heat exchanger. The chamber for receiving and melting snow mass is equipped with a mesh partition dividing the specified chamber into a zone for supplying and melting snow and a zone for supplying heated water. The coolant supply pipe is equipped with a manifold with hydraulic monitor nozzles mounted in the upper part of the heated water supply zone. In addition, the lower part of the snow receiving and melting chamber can be made with a bi-lateral slope, equipped with a grate to detain large debris, and a screw conveyor for removing sludge and sand is mounted above its bottom, and a slide gate is installed at the outlet of the screw conveyor.

In addition, the device for forced snow melting is equipped with a device for regulating the level of water filling of the chamber for receiving and melting snow mass, and the coolant supply pipe is equipped with a valve and a flexible hose for washing the units of the device during its maintenance.

The described implementation of the device is necessary and sufficient to solve the technical problem - simplifying the design of the device, improving its maintenance and operation, the efficiency of the removal of sludge and thereby reducing environmental problems and, thus, increasing the overall performance of the device.

At the same time, the solution of the technical task is achieved through the use of devices that have proven themselves in various industries (autonomous steam generator, heat exchanger, devices for cleaning liquids from sludge, slide gates, etc.).

In the future, the claimed utility model is illustrated by an example of its implementation, schematically depicted in the accompanying drawings, in which:

Figure 1 is a schematic illustration of a device for forced snow melting in accordance with the claimed utility model (side view of the receiving and melting snow mass chamber and settling chambers);

Figure 2 is a schematic illustration of the device shown in figure 1 in plan;

Figure 3 is a schematic illustration of a sludge cleaning device, shown as one of the units of the device for forced snow melting, shown in figure 2 (on an enlarged scale);

FIG. 4 is a schematic illustration of a bi-directional slope of the lower part of the snow mass receiving and melting chamber (in two projections), which is part of the device shown in FIG. 1 (on an enlarged scale).

A device for forced melting of snow includes a chamber for receiving and melting snow mass 1 (Fig. 1). The heating device 2 (Fig. 2) is an autonomous steam generator installation, which is connected by a pipe 3 to a heat exchanger 4 for heating the water supplied to the chamber 1. With the last hole 5, a device for settling water made in the form of at least one ( figure 2 shows two) settling chamber 6 with pallets 7 for the accumulation of sludge.

Pipeline 8 settling chamber 6 is in communication with the circulation pump 9 (figure 2), which, in turn, is in communication with the sludge cleaning device 10. The latter includes a hydrocyclone 11 (figure 3), a precipitation centrifuge 12 and a tank of purified water 13 in communication with the pump 14 supply of melt water to the heat exchanger 4 (figure 2). The chamber for receiving and melting snow mass 1 is equipped with a mesh partition 15 dividing this chamber into a zone for supplying and melting snow 16 and a zone for supplying heated water 17. The pipe 18 for supplying coolant is equipped with a collector 19 with hydromonitor nozzles 20 mounted in the upper part of the zone for supplying heated water 17 chambers 1. The lower part of the chamber 1 with a large amount of debris entering it in the snow mass can be made with a two-sided slope (figure 4), equipped with a grill 21 to detain large debris and over the bottom of the camera 1 mount IAOD screw conveyor 22 with drive 23, and its output is set gate valve 24. The device for water sludge 6 (drip chamber) communicated to a conduit 25 (Figure 2) from the water discharged into the sewer. A precipitation centrifuge 26 is built into the pipeline 25. The settling chamber b is equipped with a device 27 for regulating the water level in the chamber 1. The coolant supply pipe 18 is equipped with a valve 28 and a flexible

a hose 29 for washing the units of the device. To periodically remove sludge deposited on pallets, they are lifted of a known type by a lifting device (not shown in Fig.).

Near the chamber 1 is equipped with a platform 30 (figure 2) for unloading into the chamber 1 snow from trucks. The settling chambers 6 are interconnected by a hole 31. A pump 32 installed at the outlet of the chamber 6 serves to drain the melt water into the sewer.

The operation of the device is as follows. The chamber 1 (FIGS. 1, 2) is loaded with snow from cars from the site 30. The mesh partition 15 prevents the entry of large debris into the hot water supply zone 17. Initially, water from an external source is washed into the chamber 1 and the circulation pump 9 and pump 14 are turned on circulation of water passing through the hole 5, settling chambers 6, pipe 8, sludge cleaning device 10, heat exchanger 4 and pipe 18 is provided. Water is heated in the heat exchanger 4 with steam generated by an autonomous steam regenerator oh 2 and circulating through a closed pipe 3. When the snow melts, water from the chamber 1 flows through the hole 5 into the settling chamber 6. At the same time, the sludge settles on the pallet 7. If there are two or more settling chambers, they communicate with each other through the opening 31. From the settling chambers 6, melt water enters pipelines 25 and 8. From pipeline 25 it is discharged into the sewer during operation of pump 32, undergoing (if necessary) cleaning in a precipitation centrifuge 26. Through line 8, melt water is supplied through a circulation pump 9 to the sludge treatment device 10 and from n of purified water from the slurry climbs melt pump 14 and fed to heat exchanger 4 for heating. In the sludge-cleaning device 10, melt water passes successively through a hydrocyclone 11 (Fig. 3) and a precipitation centrifuge 12, where it is freed from sludge, and enters the tank of purified water 13 in communication with the pump 14. The supply of water heated in the heat exchanger 4 to zone 17 of chamber 1 is carried out through a pipe 18 and a collector 19, equipped with a hydraulic monitor nozzles 20 mounted in the upper part of the zone 17. The supply pipe of the coolant 18 through the valve 28 communicates with a flexible hose 29, into which when the valve is open 28 receives warm water for washing and equipment (2).

With a significant amount of debris in the snow mass entering the chamber 1, the lower part of this chamber can be performed with a two-sided slope (Fig. 4). In this case, the grate 21 delays large debris, and small debris and sludge passing through the grate 21 fall onto the screw conveyor 22, which removes it through the gate valve 24.

The water level in chambers 1 and 6 is regulated by slide gate valves 27 (FIG. 1) installed in chamber 6. Unloading of pallets 7 from accumulated sludge is carried out by a lifting device of a known type, for example, a truck crane (not shown in FIG.).

Part of the melt water from the settling chamber 6 is removed by the pump 32 and through the pipeline 25 (figure 2) is discharged into the sewer. However, it can be cleaned from sludge in a precipitation centrifuge 26.

Thus, the claimed design allows you to solve a number of environmental problems that arise during forced snow melting, provides increased reliability of the device and simplifies its maintenance, while reducing fuel consumption during operation.

Claims (8)

1. A device for forced snow melting, including a chamber for receiving and melting snow mass, a heating device, pipelines for supplying coolant and discharging melt water, a device for settling water and discharging sludge, characterized in that the heating device is made in the form of an autonomous steam generator installation, which communicated with a heat exchanger for heating the water supplied to the chamber for receiving and melting the snow mass. 2. The device for forced snow melting according to claim 1, characterized in that the device for sedimentation of water and removal of sludge is made in the form of at least one settling chamber, communicated on one side with the specified camera receiving and melting snow mass, and on the other hand, through a circulation pump and a cleaning device with a pump for supplying melt water to said heat exchanger. 3. The device for forced melting of snow according to claim 1 or 2, characterized in that the sludge cleaning device is made in the form of interconnected hydrocyclone, a precipitation centrifuge and a tank of purified water, in turn communicated with a pump for supplying melt water to the heat exchanger. 4. The device for forced melting of snow according to claim 1, characterized in that its chamber for receiving and melting snow mass is equipped with a mesh partition dividing the chamber into a zone for supplying and melting snow and a zone for supplying heated water. 5. The device for forced snow melting according to claim 1, characterized in that the pipeline for supplying a coolant is equipped with a manifold with hydraulic nozzles mounted in the upper part of the heated water supply zone of the snow receiving and melting chamber. 6. The device for forced snow melting according to claim 1, characterized in that the lower part of the chamber for receiving and melting the snow mass is made with a two-sided slope, equipped with a grate for detaining large debris and a screw conveyor for removing sludge and sand is mounted above its bottom, and an exit from the auger conveyor is equipped with a slide gate. 7. The device for forced snow melting according to claim 1, characterized in that it is equipped with a device for regulating the level of filling the chamber with water for receiving and melting the snow mass. 8. The device for forced snow melting according to claim 1, characterized in that the coolant supply pipe is equipped with a valve and a flexible hose for washing the units of the device.