Waste heat recovery device for tunnel kiln
A technology of waste heat recovery device and tunnel kiln, which is applied in the field of waste heat recovery device and can solve problems such as energy waste
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Embodiment 1
[0030] Such as Figure 1-4 As shown, a tunnel kiln waste heat recovery device includes a heat exchange flue 1, one end of the heat exchange flue 1 communicates with the tunnel kiln 2, and the other end is connected with a desulfurization tower 3, and the communication between the heat exchange flue 1 and the tunnel kiln 2 The place is located at the preheating zone in the tunnel kiln 2;
[0031] The heat exchange flue 1 is connected with an induced draft fan 4 and a water exchange channel 5 , and the water exchange channel 5 is attached to the outer wall of the heat exchange flue 1 .
[0032] The tunnel kiln waste heat recovery device provided in the above embodiment, when in use, under the action of the induced draft fan 4, the flue gas with a certain high temperature is sucked into the heat exchange flue 1, and the high temperature flue gas is mixed with the heat exchange channel 5 Heat exchange occurs between the cooling water, the temperature of the cooling water is incre...
Embodiment 2
[0035] Such as Figure 1-4 As shown, a tunnel kiln waste heat recovery device includes a heat exchange flue 1, one end of the heat exchange flue 1 communicates with the tunnel kiln 2, and the other end is connected with a desulfurization tower 3, and the communication between the heat exchange flue 1 and the tunnel kiln 2 The place is located at the preheating zone in the tunnel kiln 2;
[0036] The heat exchange flue 1 is connected with an induced draft fan 4 and a water exchange channel 5 , and the water exchange channel 5 is attached to the outer wall of the heat exchange flue 1 .
[0037] It also includes a heat exchange tank 6, which is arranged at the junction of the preheating zone and the firing zone in the tunnel kiln 2.
[0038] In the process of convective heat exchange, due to the high resistance of the flue gas passing through the brick stack, the resistance of the kiln arch passing through the tunnel kiln 2 is small. Generally, a smoke baffle is installed in th...
Embodiment 3
[0050] In January 2015, the waste heat recovery system in the cooling zone of the tunnel kiln 2 was put into use, and the waste heat was used to increase the daily supplementary cold water of 200 cubic meters of swimming pool from 8 ℃ to 29 ℃, and the daily 60 cubic meters of cold water for 300 people to bathe from 8 The temperature of the 3,500-square-meter swimming pool is raised to 38°C, and the indoor temperature of the 3,500-square-meter swimming pool is above 28°C, and the indoor temperature of the 1,600-square-meter workshop, office and dormitory is above 22°C. to below 50°C.
[0051] According to preliminary calculations, from the beginning of January to the end of April, the actual utilization of waste heat is 8.4 million kcal, which is equivalent to the calorific value of 1,200 tons of standard coal. Compared with heating with coal-fired boilers, the economic value of fuel saving is nearly 1 million yuan, and carbon dioxide emissions are reduced. 3,100 tons, reducing...
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