Main body and grate running unit of life garbage incinerator

Abstract

A main body and grate unit of life garbage incinerator features that its grate unit is divided into left, central and right subgrates, said left and right subgrates have drive chain wheels fixed to the drive axle for directly driving them, the drive chain wheel of central subgrate is fixed to the sleeve axle arranged in central part of drive axle and is driven by secondary drive axle via gear, chain wheel and chain, and a differentiating movement between left-right subgrates and central subgrate is formed for high combustion speed and full combustion of garbage. Said main body is composed of feeder, base, furnace body, blower and dreg crusher besides said grate unit.

Description

technical field [0001] The invention relates to a main body of a garbage incinerator and a fire grate operating device thereof. Background technique [0002] For domestic waste incineration, such as Chinese patent application 97206929.1, a radiant stepped multi-arch domestic waste incinerator is proposed. More garbage disposal, less smoke and dust emission, higher heat utilization rate. However, when the garbage moves forward with the fire grate, it cannot be turned over on the fire grate, resulting in insufficient combustion, long burn-out time, unstable furnace temperature, and poor heat preservation performance of the furnace. As its improvement, Chinese patent application 99229824.5 has carried out changes on the grate operating mechanism. It constitutes a fire grate, with ventilation holes on the furnace plate, guide rails fixed on the base of the incinerator, and the guide rails are in rolling contact with the chain rollers, and the contact surface between the guide ...

AI Technical Summary

Problems solved by technology

There are still problems that the garbage is not easy to burn through and the burning time is long

In addition, this patent application also has the following deficiencies: (1) the used furnace plate of the grate of this patent application follows the structure of the front warped furnace plate in 97206929.1, and the used furnace plate is a forward warped furnace plate. The middle part of one side has an upper flanging. Since the furnace plate is in a high temperature environment and is subject to heavy load, the furnace plate of the above structure is easy to deform, mainly because the side without the flange on the furnace plate surface bends downward. Collision with the furnace base partition below it occurs, affecting the operation of the grate

(2) The furnace wall of the furnace body of the patent application is a single layer, which not only has poor thermal insulation performance, but also the furnace is easy to crack during use, causing leakage

Due to the lack of a loosening device, the garbage is easily entangled when feeding, blocking the feeding port

(4) Because the discharge port of the hopper is the feed port of the furnace in this patent application, the discharge port of the hopper is sealed and fixedly connected with the furnace. During use, due to thermal expansion and contraction, the two will crack and leak at the joint. cigarette

(5) The lower beam of the feeding device set on the base of the patent application not only plays a load-bearing role on the furnace together with the base, but also serves as the lower edge of the furnace feed port; when the domestic waste incinerator is in operation, the garbage passes through the hopper It falls to the feed port of the furnace, enters the furnace from the feed port of the furnace under the action of the feed mechanism, and then falls to the grate of the grate operating mechanism; because domestic waste is incinerated to generate high temperature, the load-bearing lower beam is under high temperature. The bottom is prone to bending, and it will bend to press the grate within a short period of time, so that the grate operating mechanism cannot operate, and the outer surface of the lower beam is severely oxidized

(6) The casing of the slag-breaking mechanism of this patent application has a slag-breaking cylinder and a slag-holding cylinder respectively installed on the two transmission shafts. At the top, the two transmission shafts are connected with the reduction unit. The driving sprocket in the above-mentioned grate operating mechanism is at the side of the slag breaking cylinder. Between the slag holders, each furnace plate is fixed on the chain. Although the furnace plate is forward warped, the gap between the furnace plate and the furnace plate on the folded circumferential surface is relatively large, while the fire grate On the near side of the slag-breaking cylinder, sometimes the garbage slag falling from the grate hits the slag-breaking cylinder or the slag-supporting cylinder, and enters the inner bottom surface of the operating grate through the gap between the two furnace plates, and then The operation of the grate is concentrated at the passive sprocket of the grate operating mechanism, which not only causes blockage, affects the normal operation of the grate, but also easily damages the grate, and is extremely inconvenient for maintenance

The bearings and bearing seats of the slag-breaking drum applied for in this patent are installed on the side wall panels, which are easily damaged by high temperature and dust, resulting in shutdown of the furnace

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