Reciprocating inverse-pushing type garbage incinerator

Abstract

The invention discloses a reciprocating inverse-pushing type garbage incinerator which comprises a hearth wall body, a hopper device arranged on an upper port of the hearth wall body, a residue falling groove arranged at a lower port of the hearth wall body and a residue discharging machine positioned below the residue falling groove, wherein a reciprocating inverse-pushing type fire grate is arranged in the hearth wall body, a primary air chamber and an ash discharging device are sequentially arranged below the fire grate, a closed rotating shaft fire grate drive device is arranged below thefeeding device; the fire grate comprises a fire grate frame, a plurality of fixed beams used for supporting and fixing fire grate sheets, and a plurality of movable beams used for driving movable fire grate sheets; the fixed beams and the movable beams are arranged on the fire grate frame at intervals laterally, the corresponding fixed fire grate sheets and the movable fire grate sheets are arranged and overlapped at intervals laterally, the fire grate is inclined downwards along the advancing direction of rubbish, the fire grate is divided into 2-6 lines of fire grate units along the direction vertical to the advancing direction of rubbish, and the movable beam of each line of fire grate units is driven by the corresponding primary closed rotating shaft drive device through a movable beam frame. The reciprocating inverse-pushing type garbage incinerator ensures that the rubbish can be effectively conveyed, stirred, loosened, crushed and fully combusted in a process of incinerating the rubbish, and has the advantages of good sealing property, and no air and ash leakage and dropping and permeating phenomena.

Description

technical field [0001] The invention relates to a device for incinerating garbage, in particular to a reciprocating and reverse pushing type garbage incinerator. Background technique [0002] At present, the incinerators used to incinerate domestic waste, industrial waste and other waste mainly include rotary kiln incinerators, fluidized bed incinerators and mechanical grate incinerators. Among them, the mechanical grate incinerator (abbreviated as mechanical incinerator) technology is currently the most suitable technology for waste incineration, so it has been widely used at home and abroad. The technical characteristics of the mechanical incinerator are: (1) oil can be used as auxiliary fuel without burning coal, so the dust is small; (2) garbage can be directly incinerated without pretreatment before entering the furnace; (3) relying on the grate The mechanical movement realizes the agitation and mixing of the garbage, the garbage can be completely burned, and the treat...

AI Technical Summary

Problems solved by technology

Due to the planar reciprocating movement of the connecting rod, the perforation of the front plate of the air chamber cannot be effectively sealed, and the air pressure and air temperature in the air chamber are relatively high (wind pressure: 2000-4000Pa; air temperature: 200-250°C). Garbage smell and ash leakage are mixed in the air, resulting in gas with a certain temperature, odor and furnace ash leaking out from the perforation of the front plate of the air chamber, which seriously pollutes the environment of the incineration boiler room, especially the grate driving device and The nearby equipment and facilities are covered with furnace ash, which greatly shortens the life of the equipment;

[0006] In addition, in the prior art, some of the grate heads of the reciprocating and reverse-push grates do not have bosses, and some of the bosses of the grate heads of the reciprocating and reverse-push grates are neatly arranged horizontally

On the one hand, the garbage or other garbage above the grate of these structures only moves synchronously along the transverse direction of the grate, and the effect of agitation and loosening in the longitudinal direction is minimal; on the other hand, the head has no boss or has a neat boss The grate piece has a very small crushing effect on the agglomerated garbage, which is not conducive to the air distribution and heat and mass transfer of the garbage during the combustion process, and affects the incineration treatment effect of the incinerator.

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