An energy-saving tunnel kiln
A tunnel kiln and kiln chamber technology, applied in the field of energy-saving tunnel kilns, can solve the problems of loss of infrared radiation function, attenuation of thermal infrared emissivity, and easy aging of coatings, so as to delay pulverization time, reduce quality requirements, and prolong service life. Effect
Inactive Publication Date: 2015-12-09
罗旋
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Problems solved by technology
[0006] The fundamental weakness of far-infrared coating technology is that the coating is easy to age. During actual use, it will continue to pulverize and fall off or be eroded by airflow. The thermal infrared emissivity will gradually decay, lose the infrared radiation function, and the thermal efficiency will decrease with time.
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Embodiment 1
[0022] As shown in the figure, the energy-saving tunnel kiln in this embodiment includes a kiln body, and several high-temperature-resistant infrared radiation panels 2 are detachably installed on the kiln inner wall 1 of the kiln body. The high-temperature-resistant infrared radiation panels 2 face the inner side of the kiln. An infrared radiation layer 21 is provided, and a heat insulating layer 22 is provided on the side of the high-temperature-resistant infrared radiation plate 2 facing the wall of the kiln; the normal direction of the infrared radiation layer 21 is facing the product 3 to be sintered in the kiln. Among them, the infrared radiation layer 21 of the high temperature resistant infrared radiation plate 2 is made of corundum-mullite plate or mullite plate, with a thickness of about 10mm; the heat insulation layer 22 of the high temperature resistant infrared radiation plate 2 is a ceramic fiber blanket, with a thickness of about 5 ~ 20mm.
[0023] Each high-tem...
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An objective of the invention is to provide an energy-saving tunnel kiln with high energy use ratio and long service life. The energy-saving tunnel kiln comprises a kiln body. A plurality of heat-resistant infrared radiation plates are detachably mounted on the inner wall of a kiln chamber of the kiln body. One side, facing the inner portion of the kiln chamber, of each heat-resistant infrared radiation plate is provided with an infrared radiation layer. One side, facing the kiln chamber wall, of each heat-resistant infrared radiation plate is provided with a thermal insulation layer. The infrared radiation layers are made of corundum-mullite plates or mullite plates. The thermal insulation layers are ceramic fiber blankets. By the heat-resistant infrared radiation plates, having the thermal insulation layers, on the inner wall of the kiln chamber, absorbed energy are uniformly radiated onto sintered products. The thermal insulation layers are arranged on the backs of the radiation plates to prevent heat from transferring to the kiln wall, thus the maximum energy is transferred to the products to be sintered through the radiation. With the heat-resistant infrared radiation plates, service life of the kiln is prolonged, economic benefits are improved, quality grade requirement of heat-resistant materials of the kiln wall is reduced, and kiln building cost is decreased.
Description
technical field [0001] The invention relates to an energy-saving tunnel kiln. Background technique [0002] my country's industrial kilns and industrial boilers are the main body of energy consumption, and industrial kilns generally have low thermal efficiency and relatively large energy waste. In view of the low effective utilization rate of energy and relatively large energy waste in industrial kilns, the main energy-saving measures generally adopted at home and abroad are: (1) use light-weight thermal insulation materials with good thermal insulation effects as much as possible; (2) Adopt far-infrared energy-saving paint spraying technology; (3) waste heat recovery and utilization of flue gas; (4) energy-saving technology of black body radiation elements. [0003] The traditional way is to use light materials with small heat capacity and thermal insulation materials to build kilns to reduce heat storage and heat dissipation losses. This energy-saving method only "blocks...
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IPC IPC(8): F27B9/34
Inventor 王家邦傅晓云
Owner 罗旋