380V Mineral Insulated Heaters For Molten Aluminum Liquid

Mineral Insulated Electric Heater for Insulation Furnace for Molten Aluminum Liquid Temperature Maintaining is a special purpose electric heater based magnesium oxide mineral insulated metal sheathed heating cable for the insulation furnace to be used on the temperature maintaining on the molten aluminum liquid during die-casting or related process.

The electric heater adopts suitable mineral insulated heating cable as the heating source to keep the molten aluminum liquid in a certain temperature so that it cannot solidify before the manufacturing process finishes. The mineral insulated heater possesses properties of smaller size, longer life, more compatible with any other equipment etc compared with the conventional electric heating tubes.

Third, structure and working principle

1. Structure

The electric heater structure consists of nine parts. (See Figure 1)

1 Inlet pipe 2 Diversion Chamber 3 Heating Chamber 4 Temperature Measuring Resistor 5 Over Temperature Protector 6 Junction Box 7 Oil Outlet Pipe 8 Mixed Flow Chamber 9 Sewage Outlet

Figure 1: Schematic diagram of liquid electric mineral insulated heater

2. Working Principle

The cold medium enters the diversion chamber through the oil inlet, so that the medium flows into the mixing chamber along the periphery of the heating element, and the mixed medium flows out from the oil outlet at a uniform temperature. The mixing chamber is equipped with a temperature measuring sensor, and the temperature signal is collected and transmitted to the electronic control system. The temperature control instrument controls the primary circuit to realize automatic control of the oil temperature. When the oil products or electric heating element of the heater is overheated, the protection device automatically cuts off the power supply and the control cabinet emits an audible and visual alarm signal.

Fourth, technical specification

1. Model meaning

2. Technical data

The main technical data are shown in Table 1.

Table 1 Technical Data and Outer Dimension Sheet for Vertical Electric Heater

Table 2 Technical Data and Outer Dimension Sheet for Horizontal Electric Heater