Swing type rotary kiln

A rotary kiln and swing type technology, applied in the direction of rotary drum furnaces, furnaces, furnace types, etc., can solve the problems that materials and flue gas cannot be effectively isolated, cannot be coked with pulverized coal, and cannot be heated by muffle, so as to avoid The effect of direct contact, increasing productivity and reducing energy consumption

Active Publication Date: 2015-09-09
SHIJIAZHUANG XINHUA IND FURNACE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing rotary kiln, the materials to be calcined and the high-temperature flue gas are in contact with the furnace. The materials and flue gas cannot be effectively isolated, and the working mode of flame insulation heating and anaerobic heating cannot be achieved, so the coking of coal powder cannot be carried

Method used

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  • Swing type rotary kiln
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Examples

Experimental program
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Example Embodiment

[0014] Example 1

[0015] The swing type rotary kiln of the present invention is such as figure 1 As shown, it includes a rotary kiln 7, a preheater 5, a feeding system 4, a cooler 14, a discharging device 15, a decomposition gas collection device 1, a cooling fan 20, a waste heat power generation device 3, and an exhaust gas discharge system 10. The rotary kiln is provided with 6 U-shaped radiant tubes 18, a kiln head cover 6 and a kiln tail cover 13. The U-shaped radiant tube 18 is a high-temperature radiant tube, which is inserted into the kiln of the rotary kiln and is connected to the kiln shell in a sealed manner. The feeding system is connected to the preheater, which is connected to the kiln chamber of the rotary kiln through the kiln head cover. The kiln chamber of the rotary kiln is connected with the cooler through the kiln tail cover, and the cooler is connected with the discharge equipment. The preheater is provided with a decomposition gas outlet 19, which is conne...

Example Embodiment

[0017] Example 2

[0018] Another embodiment of the present invention is as figure 2 As shown, the lower part of the rotary kiln 7 is provided with an auxiliary heating device on the wall of the kiln in contact with the material. The auxiliary heating device is a heating tube 21, which has an electric heating structure to increase the heat in the rotary kiln and increase the heating speed.

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Abstract

The invention relates to a swing type rotary kiln which comprises a rotary kiln body, a preheater, a feeding system, a cooler, a discharging device, a decomposition gas collecting device, a waste heat power generation device and an exhaust emission system. The rotary kiln is provided with at least one radiant tube, and the at least one radiant tube is inserted in a hearth of the rotary kiln and is in sealed connection with a kiln body casing. The radiant tube is provided with a nozzle and an exhaust gas outlet. The exhaust gas outlet is connected to an exhaust gas main pipe through a connecting hose, and the exhaust gas main pipe is connected to the exhaust emission system through an induced draft fan. A fuel inlet of the nozzle is connected with a fuel pipeline, and a combustion-supporting gas inlet of the nozzle is connected with a blower. The radiant tube is inserted in the hearth of the rotary kiln; a dividing wall of the radiant tube is utilized to heat materials in the hearth of the rotary kiln, the materials are protected from direct contact with burning flue gas, the quality of hot processing material products is improved; the hot processing materials are recycled to be decomposed into gas byproducts, and the economic benefit is improved.

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 swing type rotary kiln. Background technique [0002] Rotary kiln refers to rotary calcining kiln (commonly known as rotary kiln), which belongs to the category of building materials equipment. Rotary kiln can be divided into cement kiln, metallurgical chemical kiln and lime kiln according to different materials. 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 roasting of lean iron ore in iron and steel plants in the metallurgical industry; oxidative roasting of chromium and nickel-iron ore; roasting of high-alumina bauxite ore in...

Claims

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Application Information

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IPC IPC(8): F27B7/10F27B7/34F27D17/00
Inventor 贾会平
Owner SHIJIAZHUANG XINHUA IND FURNACE CO LTD
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