Solid waste incineration device

Abstract

The invention discloses a solid waste incineration device, which comprises a rotary kiln. The rotary kiln comprises a preheating section, a transition section and a calcination section, the end of thepreheating section is provided with a feeding inlet, the end of the calcination section is provided with a discharging outlet, the transition section is a cylindrical furnace well internally providedwith a cavity, the side wall of the furnace well is provided with a first connector and a second connector, the preheating section communicates with the inner cavity of the furnace well through the first connector, and the calcination section communicates with the inner cavity of the furnace well through the second connector. By separating the preheating section and the calcination section into two spaces, the preheating section and the calcination section have the height difference, thus the situation that heat is excessively discharged into the preheating section, and the great loss of theheat in the calcination section is directly caused is avoided, and the material treating efficiency is efficiently enhanced. The overall structural design is reasonable, practicability is quite high,and the solid waste incineration device is suitable for large-scale production.

Description

technical field [0001] The invention relates to a rotary kiln, in particular to a solid waste incineration device. Background technique [0002] Rotary kiln refers to rotary calcining kiln, which belongs to building materials production equipment. Rotary kiln is a widely used kiln for calcining small particle materials. It is suitable for steel, calcium carbide and non-ferrous metal production enterprises. It can directly calcinate 10-40mm fine-grained raw material limestone or dolomite. It has good raw material adaptability and high output. Large size, uniform product, high activity, stable production operation and so on. [0003] The rotary kiln in the prior art includes a preheating section and a calcination section. The axis of the preheating section coincides with the axis of the calcination section. In this type of direct blowing rotary kiln, the heat usually enters the calcination section through the air inlet, and then enters the In the preheating section, this kin...

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Problems solved by technology

[0003] The rotary kiln in the prior art includes a preheating section and a calcination section. The axis of the preheating section coincides with the axis of the calcination section. In this type of direct blowing rotary kiln, the heat usually enters the calcination section through the air inlet, and then enters the In the preheating section, this kind of direct-blown rotary kiln will divert the heat of the calcination section, resulting in heat loss in the calcination section (the temperature in the calcination section is specified to be controlled within the range of 1000-1300°C), resulting in relatively high heat near the air inlet. Strong, while the position farther from the air inlet has weaker heat, that is, the uneven heating of the heat entering the calcination section makes the heat utilization rate of the rotary kiln low and affects the calcination efficiency; in addition, the flue gas after calcination is mixed with the carbon dioxide produced by the decomposition of limestone Together, it is not conducive to the recovery and utilization of limestone calcination by-products

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