Technology and apparatus of electromagnetic induction heating in reclaimed rubber production process

Abstract

The invention provides a technology and an apparatus of electromagnetic induction heating in a reclaimed rubber production process. The apparatus comprises at least one electromagnetic induction heater, at least two copper strip electromagnetic induction heating plates, an insulation paint, a composite blanket and a reclaimed rubber desulphurization pot / tube. The copper strip electromagnetic induction special-shaped plates are welded in spiral through pure copper strips, a plurality of plates, which are connected in series or in parallel and fixedly arranged on surfaces of the desulphurization pot / tube, are connected with the electromagnetic induction heater. The insulation paint and the composite blanket, which are prepared through cooperating a plurality of fibrous material powders, are painted or arranged between outer surfaces of the desulphurization pot / tube and inner surfaces of the copper strip electromagnetic induction heating plates. Power current is input into the electromagnetic induction heater during operating, a magnetic field is generated by the connected copper strip electromagnetic induction heating plates, the irony desulphurization pot / tube cuts the magnetic field, and vortex is generated on surfaces of the pot / tube, so iron molecules move at a high speed, bump and rub to generate heat. The technology and the apparatus have the advantages of energy saving, environmental protection and safety, and is suitable for heating in the reclaimed rubber production process.

Description

technical field [0001] The invention relates to the field of non-ferrous metal welding and insulating coatings, and relates to an electromagnetic induction heating technology and device used in the production process of recycled rubber. Background technique [0002] At present, the heating and desulfurization process equipment in the domestic recycled rubber industry mainly adopts heating methods such as coal-fired or gas-type heat-conducting oil furnaces, resistance wires (belts), and surrounding electromagnetic induction coils. [0003] 1. Both coal-fired and gas-fired heat-conducting oil furnaces use high-temperature flames to transfer heat energy to the metal pipes in the furnace. After the metal pipes are heated, the heat energy is transferred to the heat-conducting oil flowing in the pipes. The temperature of the outer wall of the metal pipes is generally 800°C-1300°C. The temperature of the heat transfer oil we need is generally around 350°C (different grades of heat ...

AI Technical Summary

Problems solved by technology

[0003] 1. Both coal-fired and gas-fired heat-conducting oil furnaces use high-temperature flames to transfer heat energy to the metal pipes in the furnace. After the metal pipes are heated, the heat energy is transferred to the heat-conducting oil flowing in the pipes. The temperature of the outer wall of the metal pipes is generally 800°C-1300°C. The temperature of the heat transfer oil we need is generally around 350°C (different grades of heat transfer oil are used according to actual production needs, and their temperature tolerance is also different), so the heat transfer oil is severely damaged under long-term high temperature, and the speed of heat transfer oil is accelerated. Carbon formation and aging, the service life is only about 3 years and must be replaced;

[0004] 2. After heating, the heat transfer oil is injected into the desulfurization tank through the circulating pump system. Such a process will inevitably lead to an increase in the amount of heat transfer oil in the enterprise. For example, a 6 cubic meter desulfurization tank needs 2.5 tons of heat transfer oil. If the company has multiple desulfurization tanks at the same time For production, it is necessary to increase the power and volume of the heat transfer oil furnace. At the same time, it is necessary to configure multiple heat transfer oil furnaces to ensure normal production needs. Coupled with the cost of heat transfer oil itself, the investment and cost of enterprises and products increase;

[0008] 1. Because the surface of the desulfurization tank and tube is installed with a number of iron components required for its own operation (such as tank support, switch door bracket, etc.), the surrounding coils cannot be evenly distributed on the surface of the tank and tube, resulting in uneven heating.

[0009] 2. During the industrial production of recycled rubber, there is no solid medium on the top of the desulfurization tank and pipe, so the top does not need to be heated, but the surrounding induction coil heats the top, which leads to a decrease in thermal efficiency and produces enough internal heating,

[0010] 3. When producing recycled rubber industrially, it is necessary to install an iron operating platform on the top of the desulfurization tank and pipe. The platform will cut the magnetic field of the coil and generate heat, resulting in waste of heat energy;

[0012] 1. High energy consumption;

[0013] 2. Poor security;

[0014] 3. Pollution of the environment;

[0015] 4. The technology is backward and the life of the equipment is short