SU1276722A1 - Apparatus for melting and dehydrating bituminous material - Google Patents

Abstract

The invention relates to construction equipment, in particular, to devices for melting and dewatering bituminous materials. The invention aims to increase productivity and eliminate the deterioration of the quality of the bituminous material due to its overheating. This is achieved by having the heat exchanger 8 placed under the feed funnel 2 of the thermally insulated tank 1 of the rotary drum heater 3 with the hollow insert 10 have a drive impeller 5 mounted at one end. Radial blades 11 are installed in the heater 3 above the last, and between the insert 10 and the heater shell 3, an annular partition 12 is formed that forms circulation channels for the heat transfer fluid. During the operation of the fuel combustion device 7 located in the hollow insert 10, the heating medium is heated. Due to the rotation of the impeller 5, the coolant circulates around the partition 12 and the heater 3 rotates as a result of the occurrence of a radial force. This provides an automatic change in the speed of rotation of the heater 3, depending on the degree of its heating and the elimination of overheating of the bituminous material. 2 Il. A (L Fuel oo S5 GCHE GO Figure 1

Description

The invention relates to construction equipment, in particular, to devices for melting and dewatering bituminous materials.

The purpose of the invention is to increase productivity and eliminate the reduction in the quality of the bituminous material due to its overheating.

FIG. 1 shows the device section; in fig. 2 - section A-L in FIG. one.

The device for melting and dewatering the bituminous material has a thermally insulated container 1, a feed hopper 2, a rotary drum heater 3, a circulation system 4, a paddle wheel 5 with a drive 6, a device 7 for burning fuel, a bituminous pump with a drive 8, a storage tank 9 and a hollow insert 10 located in the heater 3 with an open end facing the heater 3 and forming a closed cavity in the latter.

The circulatory system 4 consists of radial blades 11 mounted around the wheel 5 on the inner surface of the heater 3, and an annular partition 12 attached with its end to the blades 11 and forming channels for a liquid heat carrier, for example, oil. Fuel burning device 7 is located in the hollow insert 10 on the side of its open end.

A device for melting and dewatering a bituminous material works as follows.

When the actuator 6 is turned on, the impeller 5 circulates the coolant in the closed cavity of the heater 3 through the channels formed by the annular baffle 12, which ensures uniform temperature distribution on the surface of the heater 3. The burner coolant is realized by the combustion products forming 7 burning fuel. At the same time, the impeller 5 performs by converting the kinetic energy of the coolant into mechanical rotation of the heater 3, similarly to the work of hydrodynamic transmission. After heating the heater 3 to the operating temperature, the device is loaded through the funnel with 2 bitumen material. In case of contact with the last heated

A thin film of melted bitumen material is formed on the surface of the heater 3 on its surface. Heating and dewatering of the stretched film during its stay on the free surface of the heater 3. When approaching the molten piece of bitumen from the film, pressed to the surface of the heater 3, the film is removed, which drains into the accumulative capacity 9. No hard drive connection 6 with heater 3 provides automatic control of its rotational speed. In this case, the heater 3 rotates the faster, h. M, its temperature is higher and, consequently, the temperature of the molten film of bitumen material, which acts as a lubricant. The possibility of increasing the rotational speed leads to improved performance and more intense heat transfer through the surface of the heater 3, which eliminates the overheating of the bituminous material and the reduction in its quality associated with overheating.

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Claims (1)

Invention Formula A device for melting and dewatering bitumen material, which includes a heat-insulated container with a hopper, a rotary drum heater with a hollow insert located under it, a device for burning fuel, a bitumen pump, and a cumulative capacity, in order to improve performance while maintaining the quality of bitumen material, the drum heater is equipped with a drive impeller mounted at one end and fixed to its inner surface around the wheel radial blades and an annular partition between its shell and the insert, which is connected with radial blades by its end, the insert on the side opposite to the paddle wheel has an open end facing the heater and forms a closed cavity inside the heater, and placed in the hollow insert from the side of its open end, and the closed cavity is filled with a heat-transfer fluid. Phage.g VNIIPIZakaz 6644/23 Circulation 514Subscribe Branch PPP "Patent, Uzhgorod, Proektna str., 4