CN110296393A

CN110296393A - A kind of burning solid waste waste discharge method

Info

Publication number: CN110296393A
Application number: CN201910542658.8A
Authority: CN
Inventors: 陆晓焰; 秦卫东
Original assignee: Wuxi Huaguang Boiler Co Ltd
Current assignee: Wuxi Huaguang Boiler Co Ltd
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2019-10-01

Abstract

The invention belongs to circulating fluidized bed technique fields, specially a kind of burning solid waste waste discharge method, it, which can facilitate, realizes being smoothly discharged for foreign matter, increase slag dropping tube quantity on air distribution plate and increases slag pipe diameter, blast cap on air distribution plate using round end structure and reduce blast cap to air distribution plate surface height, adjacent blast cap transverse pitch increases, the bed temperature of fluidized bed is increased to 910-920 DEG C, and two bed materials are set at boiler front wall and replace mouth, when needing to replace bed material, bed material is added from bed material displacement mouth and increases boiler slag removal amount.

Description

A kind of burning solid waste waste discharge method

Technical field

The invention belongs to circulating fluidized bed technique field, specially a kind of burning solid waste waste discharge method.

Background technique

Circulating fluidized bed boiler can handle general solid waste, mainly papermaking area waste pulp slag, papermaking waste, at sewage Factory's dewatered sludge etc. is managed, there are the foreign matters such as iron nail, iron wire in papermaking waste, although preprocessing system is provided with several roads except iron fills It sets, but cannot still completely remove the foreign matters such as iron nail, iron wire, if by 5 ‰ iron nail, iron wire content, pot in papermaking waste Furnace is mixed daily burns 350 tons of this wastes, then has 1.5 tons of iron nails, iron wires to enter burner hearth daily, if cannot exclude in time, ten days Just having 15 has iron nail, iron wire to be deposited on air distribution plate, influences to fluidize, and continue to run boiler can not, can only blowing out and then people Work enters burner hearth cleaning.

Summary of the invention

In order to solve the problems, such as that the foreign matters such as existing iron nail, iron wire can not be successfully discharge, the present invention provides a kind of burning is solid The air distributor structure of waste can facilitate and realize being smoothly discharged for foreign matter.

Its technical solution is such that a kind of burning solid waste waste discharge method, which is characterized in that increases on air distribution plate and falls Slag pipe quantity simultaneously increases slag pipe diameter, the blast cap on air distribution plate using round end structure and reduce blast cap to air distribution plate surface height Degree, adjacent blast cap transverse pitch increase, and the bed temperature of fluidized bed is increased to 910-920 DEG C, and two are arranged at boiler front wall Bed material replaces mouth, when needing to replace bed material, bed material is added from bed material displacement mouth and increases boiler slag removal amount.

It is further characterized by slag dropping tube quantity increases to four from three, and blast cap pitch reaches 175mm, scum pipe Diameter increases to 250mm.

After method of the invention, blast cap height reduce and transverse pitch increase, be conducive to the foreign matters such as iron nail, iron wire to The flowing of slag mouth direction, after slag dropping tube quantity increase, reduces the foreign matters such as iron nail, iron wire at a distance from slag mouth, and diameter increases It is also beneficial to blanking discharge, bed temperature can make the foreign matters such as iron wire, iron nail soften after improving, it is easier to move to slag mouth with bed material It is dynamic, bed material displacement mouth is finally set, a large amount of bed material is added from this mouth in a short time, increases simultaneously when needing to replace bed material Boiler slag removal amount, remaining foreign matter is swept along mobile to slag mouth until being discharged by bed material on air distribution plate, finally realizes foreign matter Be smoothly discharged.

Detailed description of the invention

Fig. 1 is conventional cap structure schematic diagram；

Fig. 2 is cap structure schematic diagram of the present invention.

Specific embodiment

See Fig. 1, shown in Fig. 2, a kind of burning solid waste waste discharge method, slag dropping tube quantity is increased to from three on air distribution plate Four, and slag pipe diameter is increased into 250mm from 219mm, the blast cap on air distribution plate uses round end structure and reduces blast cap and arrives The height on air distribution plate surface, is specifically shown in Fig. 2, and compared with the existing blast cap of Fig. 1, height is lower, and is round end, is more advantageous to different The flowing of object, adjacent blast cap transverse pitch also increase to 175mm from 160mm, and the bed temperature of fluidized bed is increased to 910-920 DEG C, It most preferably 916 DEG C, improves than 880 DEG C of conventional boiler and is spent 30 more, at this temperature, iron wire, iron nail etc. soften, with Bed material is washed away, it is not easy to tangle on blast cap and bed material is mobile to cinder notch together, although taking above-mentioned measure, still Part iron wire is had, iron nail etc. remains in burner hearth, for example iron wire can be intertwined and become iron block, since front is pretreated It is not in place, it there may also be the foreign matters such as iron block, pop can, brick in solid waste, these foreign matters are that can not be discharged by normal deslagging , it is cumulative on air distribution plate with the lengthening of runing time, decline bed material quality, influences to fluidize, therefore before boiler Two bed materials are set at wall and replace mouth, when needing to replace bed material, bed material is added from bed material displacement mouth and increases boiler slag removal amount, Remaining foreign matter is swept along mobile to slag mouth until being discharged by bed material on air distribution plate, is periodically used bed material substitute mode, is made it It is discharged together with bed material, prolonged boiler continuous operating time.

After above-mentioned corrective measure, can greatly prolonged boiler continuous operating time, improve boiler service efficiency, from And improve the benefit of enterprise.

Claims

1. a kind of burning solid waste waste discharge method, which is characterized in that increase slag dropping tube quantity on air distribution plate and increase slag dropping tube Diameter, blast cap on air distribution plate is using round end structure and reduces the height that blast cap arrives air distribution plate surface, the lateral section of adjacent blast cap Away from increase, the bed temperature of fluidized bed is increased to 910-920 DEG C, and two bed materials are arranged at boiler front wall and replace mouth, when needs are set When changing bed material, bed material is added from bed material displacement mouth and increases boiler slag removal amount.

2. a kind of burning solid waste waste discharge method according to claim 1, which is characterized in that slag dropping tube quantity increases from three Four are added to, blast cap pitch reaches 175mm, and deslagging pipe diameter increases to 250mm.