Method for reducing industrial furnace shell heat loss by mounting heat insulation box on furnace outer shell
A thermal insulation box and industrial furnace technology, applied in the field of heat treatment, can solve the problems of high cost, large heat loss, difficult production and installation, etc., and achieve the effects of simple manufacturing process, improved thermal insulation performance, and reduced heat dissipation loss
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Embodiment 1
[0021] The maximum working temperature of RJX-50 high-temperature box-type resistance furnace: 1300°C Overall dimensions: 1890mm×2880mm×2050mm.
[0022] 1. Install 80 double-layer insulation boxes with a plane size of 226mm×230mm×20mm on both sides of the furnace. The thickness of the side wall and sealing surface of the box is 1mm. Each box is put into two layers of ribs, and the height of each layer of ribs is 8.5 mm, two longitudinal ribs with a length of 228mm, and two transverse ribs with a length of 224mm. The first step of installation is to put a piece of aluminum foil with an area of 224mm×228mm into the box, the second step is to put a layer of ribs, the third step is to put an aluminum plate with a thickness of 1mm, and the fourth step is to put a layer of ribs, and then Fix the box on the furnace shell with screws at the four corners of each box. 36 same heat preservation boxes are installed on the furnace shell of the furnace rear wall.
[0023] 2. The top sur...
Embodiment 2
[0025] The maximum operating temperature of RJX-75 medium-temperature box-type trolley resistance furnace: 950°C Furnace wall size: 2500×1735×1500mm.
[0026] 1. Install 70 insulation boxes with a plane size of 452mm×230mm×50mm on both sides of the furnace wall. The thickness of the side wall and the sealing surface of the box is 1mm. Each box is put into a second layer of ribs, and the height of the ribs is 23.5mm. There are four longitudinal ribs with a length of 228mm, and two transverse ribs with a length of 450mm. The first step of installation is to put a piece of aluminum foil with an area of 450mm×228mm into the box, the second step is to put a layer of ribs, the third step is to put an aluminum plate with a thickness of 1mm, and the fourth step is to put a layer of ribs, and then Fix the box on the furnace shell with screws at the four corners of each box. The rear wall of the furnace (except for the protective cover at the leading end of the electric heater) is eq...
Embodiment 3
[0029] RJJ-105 pit type gas carburizing furnace, such as figure 1 shown. Maximum operating temperature: 950°C Dimensions: Φ1870×3050mm.
[0030] Install 400 insulation boxes 1 with a plane size of 65×460×10 on the furnace wall (except for the protective cover at the lead end of the electric heater). The thickness of the side wall and sealing surface of the box is 1mm. Each box is put into a layer of ribs. The height of the ribs is 8mm. There is 1 longitudinal rib with a length of 228mm and 6 transverse ribs with a length of 63mm. During installation, the first step is to paint a layer of silica sol evenly on the furnace wall gradually, and then lay a layer of 10mm slag wool blanket. The second step is to put a piece of aluminum foil with an area of 228mm×63mm into the box. , the transverse ribs are put into the box, and the fourth step is to fix the four corners of each insulation box on the furnace shell 3 covered with slag cotton blanket 2, such as figure 2 shown.
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