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Heat-accumulation dividing-wall heating rotary kiln device

A rotary kiln and regenerative technology, which is applied in the field of rotary kiln and regenerative partition heating rotary kiln device, can solve the problem that the rotary kiln cannot adapt to multiple purposes, achieve significant economic and social benefits, reduce pollution, improve The effect of product quality

Active Publication Date: 2013-04-24
SHIJIAZHUANG XINHUA IND FURNACE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rotary kiln of this patented technology cannot be adapted to a variety of purposes, and there is still plenty of room for reducing energy consumption and saving energy

Method used

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  • Heat-accumulation dividing-wall heating rotary kiln device
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  • Heat-accumulation dividing-wall heating rotary kiln device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The regenerative partition heating rotary kiln device of the present invention is as figure 1 As shown, it includes two rotary kiln bodies 19, two heat storage decomposers 4, two silos 17, feeding equipment 16, lime raw material feeding system 3, blower 14, gas turbine 9, steam turbine 13, gas product processing Equipment, discharge equipment and exhaust gas emission system. The steam and gas turbines are coaxially connected to the generator. The gas product processing equipment includes coking gas purification equipment, liquid extraction equipment and chemical unit, and the discharge equipment includes No. 1 cooling fan 23, cooler 24 and coking product sorting equipment 26. No. 1 cooling fan is connected with the cooler, heat storage and decomposition The feed port 2 of the device is connected with the lime raw material feeding system. A heat storage body is installed in the heat storage decomposer, and the heat storage body is a small ceramic ball. The silo is con...

Embodiment 2

[0033] The second embodiment of the present invention is as figure 2 As shown, the regenerative decomposer is provided with a cooling belt 43, No. 2 cooling fan 29 and an ordinary lime outlet 41. The regenerator in the regenerative decomposer is limestone material, and the No. 2 cooling fan is connected with the cooling belt. No. 1 cooler 23 is provided with steam generators 5 respectively, and the steam generators are respectively connected with steam turbines. No. 1 cooler 23 is provided with steam generators 5, and the steam generators are respectively connected with steam turbines. The limestone enters the thermal storage decomposer 4 through the lime raw material feeding system 3 and the feed port 2, and the flue gas generated by combustion in the combustion chamber passes through the flue gas channels 20 on both sides, is heated in the kiln chamber 21, and then goes to the other side for thermal storage and decomposition Device 4 calcines the limestone material in the ...

Embodiment 3

[0035] The third embodiment of the present invention is used to produce low-sulfur lime and ordinary lime, such as Figure 4 As shown, the device is provided with a carbon dioxide collector 32, and the kiln head 8 is provided with a lime powder injection inlet 33. The heat storage decomposer is provided with a cooling belt 43, No. 2 cooling fan 29 and an ordinary lime outlet 41, and the No. 2 cooling fan 29 is connected with the cooling belt 43. The heat storage body in the heat storage decomposer is calcareous material, checker brick or ceramic ball. The discharge equipment includes a cooler 24 and a No. 1 cooling fan 23 . The No. 1 cooling fan is connected to the cooler, and the cooler is provided with a low-sulfur lime outlet 42 . The upper outlet of the feed bin is connected with the carbon dioxide collector 32 through a pipeline. The thermal storage decomposer is used to produce ordinary lime, the rotary kiln body 19 is used to produce low-sulfur lime, and the silo 17 i...

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Abstract

The invention relates to a heat-accumulation dividing-wall heating rotary kiln device which comprises two rotary kiln bodies, two heat-accumulation decomposers, two storage bins, a charging apparatus, a lime material charging system, a blast blower, a gas product treatment apparatus, a discharging apparatus and an exhaust emission system, wherein each rotary kiln body is provided with a kiln head, a kiln chamber and a flue gas channel; the kiln chamber and a gas channel are separated by a refractory material; the two rotary kiln bodies are arranged in a left-right symmetric mode or non-symmetric mode; one side of each kiln chamber is connected with the discharging apparatus through a kiln tail hood, and the other side is connected with the storage bin; the storage bin is connected with the gas product treatment apparatus through a pipeline, and the connecting pipeline is provided with a valve; and one side of each flue gas channel is connected to the gas channel on the other side through the kiln tail hood, and the other side is connected with the heat-accumulation decomposer. The rotary kiln bodies, storage bins and heat decomposer constitute the heat-accumulation dividing-wall heating rotary kiln device, and the flue gas generated in the calcining or heating process and the decomposed gases generated by material decomposition are utilized to preheat the processed material, thereby fully utilizing the waste heat, lowering the energy consumption and enhancing the heat efficiency of the device.

Description

technical field [0001] The invention belongs to the technical field of industrial furnaces and kilns, and relates to a rotary kiln, in particular to a regenerative partition heating rotary kiln device used for the production of various products. Background technique [0002] Rotary kiln refers to rotary calcining kiln, which belongs to building materials production equipment. Rotary kiln can be divided into cement kiln, metallurgical chemical kiln and lime kiln according to different materials. Cement kilns are mainly used for calcining cement clinker, which can be divided into two categories: dry production cement kiln and wet production cement kiln. Metallurgical and chemical kilns are mainly used for magnetization and roasting of lean iron ore in iron and steel plants in the metallurgical industry. Lime rotary kiln is a kiln that is widely used for calcining small particle materials, and is suitable for a large number of iron and steel, calcium carbide chemical, and non...

Claims

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Application Information

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IPC IPC(8): C04B2/10
CPCY02P40/40
Inventor 贾会平
Owner SHIJIAZHUANG XINHUA IND FURNACE CO LTD
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