WO2019200830A1

WO2019200830A1 - Garbage incinerator grate furnace poking device

Info

Publication number: WO2019200830A1
Application number: PCT/CN2018/106078
Authority: WO
Inventors: 李继政; 李安平; 徐连春
Original assignee: 南京凯盛国际工程有限公司
Priority date: 2018-04-20
Filing date: 2018-09-18
Publication date: 2019-10-24
Also published as: CN108332212A

Abstract

A garbage incinerator grate furnace poking device, comprising a fixed beam (3) and a plurality of furnace poking grate sheets (1), and a plurality of one-way air valves (2); the furnace poking grate sheets (1) are fixed on the fixed beam (3), and the furnace poking grate sheets (1) are provided thereon with poking air holes (1.3); the one-way air valves (2) are provided below the furnace poking grate sheets (1) and an air chamber is formed between the two, the poking air holes (1.3) communicating with the air chamber; air inlets of the one-way air valves are connected to air cannons (7) by means of air transport pipelines. The device may break up large clusters of garbage on a furnace hearth, improve the combustion efficiency of a grate furnace, and reduce the loss on ignition of clinker; meanwhile, the use of the one-way air valves (2) may effectively stop high-temperature smoke in the furnace hearth from returning to an air duct (6), thereby extending the service life of the air duct (6) and preventing safety accidents such as the explosion of an air cannon (7).

Description

Garbage incinerator

Technical field

The invention belongs to the technical field of solid waste treatment, in particular to a fire extinguishing device for a waste incinerator.

Background technique

The garbage incinerator is a device that allows the garbage to be fully burned and transported by reciprocating movement of the grate pieces below the garbage layer. However, in the actual operation process, the garbage composition is complicated, the unloading is uneven, and the like, so that a large agglomerated garbage appears on the hearth, thereby causing insufficient combustion inside the agglomerate, which eventually leads to an increase in the slag thermal burning rate. The burning efficiency of the grate furnace is reduced.

Throughout the previous solutions to the problem of agglomeration, most of them use mechanical dispersal, but this method requires hydraulic drive, transmission, shearing knife and other components to work together to complete the dispersing action, the effect is general, and its additional cost is high. In addition, due to the limited installation and maintenance space under the grate furnace, additional mechanical dispersing devices will cause certain difficulties in installation, commissioning and overhaul.

In view of the above situation, the garbage incinerator furnace needs a fire-fighting device with good effect and simple structure to solve the above problems.

Summary of the invention

In order to overcome the deficiencies of the prior art, the present invention provides a fire extinguishing device for a garbage incinerator, which solves the problem of breaking up the agglomerated garbage, has a simple structure, has a good scattering effect, and has low cost.

The technical solution adopted by the present invention to solve the technical problem thereof is as follows: a garbage incinerator furnace arranging device, comprising a fixed beam and a plurality of arboring furnace rows, and further comprising a plurality of one-way dampers; the arboring furnace row is fixed on the fixing beam The dialing furnace block is provided with a fire venting hole; the one-way damper is disposed below the arranging furnace row and a plenum is formed between the two, and the igniting air hole is connected with the air chamber; The air inlet of the one-way air valve is connected to the air gun through a gas pipeline.

As a further preferred embodiment, the gas delivery line includes a hose and a duct, the hose being connected to the one-way damper, the duct being connected to the hose by a clamp.

As a further preferred embodiment, the air duct is composed of a duct main pipe and a plurality of air duct branch pipes connected thereto, and an air inlet of the air duct main pipe is connected to the air gun.

As a further preferred embodiment, the one-way damper consists of a cross stop, a cover plate and a splice.

As a further preferred embodiment, the set of burners consists of a top plate and a support, the support is fixed to the fixed beam, and the top plate and the support are connected by fasteners.

As a further preferred embodiment, the air cannon is fixed to the outside of the grate furnace.

The positive effect of the invention: the invention adopts a uniquely designed mechanical structure such as a fire-discharge furnace row, a one-way air valve and a air duct, and can arrange the bulk agglomeration garbage on the hearth to be dispersed in the furnace when the furnace is arranged into the movement, and the furnace is lifted. The combustion efficiency of the kiln reduces the thermal burning rate of the slag, and the use of the one-way damper can effectively prevent the high-temperature flue gas in the furnace from flowing back into the air duct, improve the service life of the air duct, and avoid the safety of the air gun explosion. accident. In addition, the invention has the advantages of simple structure and reasonable setting, can avoid excessive occupying the limited space under the grate furnace, and the tree structure design of the air duct can improve the use efficiency of the air gun and reduce the equipment cost.

DRAWINGS

1 is a schematic structural view of a fire extinguishing device of a waste incinerator;

Figure 2 is a schematic cross-sectional view of the A-A direction of Figure 1;

Figure 3 is a partial enlarged structural view of Figure 1;

4 is a schematic structural view of the one-way damper.

In the figure, 1: set the furnace row; 2: one-way damper; 3: fixed beam; 4: hose; 5: clamp; 6: duct; 7: air cannon;

1.1: top plate; 1.2: support; 1.3: set fire hole;

2.1: cross stop; 2.2: cover; 2.3 take over.

detailed description

The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 to FIG. 4, a preferred embodiment of the present invention provides a fire extinguishing device for a waste incinerator, comprising a fixed beam 3 and a plurality of fire pits, and a plurality of one-way air valves 2; It is fixed on the fixed beam 3, and the fire-retardant row plate is provided with a fire-dissipating air hole 1.3; the one-way air valve 2 is disposed under the fire-breathing furnace row 1 and a wind chamber is formed between the two, the fire-dissipating air hole 1.3 The air chamber is connected to the air chamber; the air inlet of the one-way air valve 2 is connected to the air gun 7 through a gas transmission line.

Specifically, the gas transmission line includes a hose 4 and a duct 6, and the hose 4 is connected to the one-way damper 2 through a clamp 5, and the air duct is connected to the hose through the clamp 5. Specifically, the hose is a flexible material, and the air duct is a rigid material, and the hose is used to compensate for additional stress caused by temperature difference, mechanical vibration or installation deviation between the air duct and the single air valve.

As shown in FIG. 2, the air duct is composed of a duct main pipe and a plurality of air duct branch pipes connected thereto, and an air inlet of the air duct main pipe is connected to the air gun.

As shown in FIG. 3, the one-way damper is composed of a cross block 2.1, a cover plate 2.2 and a nozzle 2.3.

The set of the stove is composed of a top plate 1.1 and a support 1.2, the support 1.2 is fixed on the fixed beam 3, and the top plate 1.1 and the support 1.2 are connected by fasteners.

The air cannon 7 is fixed to the outside of the grate furnace.

As shown in FIG. 2 and FIG. 3, when the air cannon is in operation, the air cannon 7 releases the compressed air into the air duct 6, and the compressed air is uniformly dispersed into each of the air duct branches through the tree structure, and the cover plate is at this time 2.2 is blown open, the one-way damper 2 is open, the compressed air enters the wind chamber, and finally is ejected from the igniting air hole 1.3 on the top plate 1.1 of the arranging plate 1 to utilize the instantaneous impact force to the furnace bed. Large pieces of garbage broke up.

As shown in FIG. 3 and FIG. 4, when the air gun does not operate, the one-way damper 2 is in a closed state, and the cover plate 2.2 is covered by the gravity cover on the nozzle 2.3, and the high temperature flue gas in the furnace cannot be returned to the wind. Inside the tube 6.

According to the specific combustion situation of the garbage in the furnace, multiple sets of grate fire-discharging devices can be modularly arranged in the direction of the movement of the grate.

In one aspect of the invention, the compressed air sprayed by the air can be used to break up the large pieces of garbage on the grate to improve the combustion efficiency and reduce the thermal burning rate of the slag; on the other hand, the design of the one-way air valve can effectively prevent The high temperature flue gas in the furnace is returned to the air duct to prevent the occurrence of safety accidents.

The above description is only the preferred embodiment of the present invention, and it should be understood that the description of the above embodiments is only for facilitating understanding of the method and the core idea of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions and the like made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

The utility model relates to a garbage incinerator, which comprises a fixed beam and a plurality of fire-discharge furnace fins, characterized in that: a plurality of one-way air valves are further included; the fire-discharge furnace row piece is fixed on the fixed beam, and the fire-retarding furnace row is provided a venting air vent; the one-way damper is disposed under the arranging plate and a plenum is formed therebetween, the igniting air hole is connected to the plenum; and the air inlet of the one-way damper is transmitted through The gas line is connected to the air gun.
A fire incinerator arrangement for a garbage incinerator according to claim 1, wherein said gas supply line comprises a hose and a duct, said hose being connected to said one-way air valve, said wind The tube is connected to the hose by a clamp.
The fire extinguishing device for a garbage incinerator according to claim 2, wherein the air duct is composed of a main pipe of the air duct and a plurality of air duct branches connected thereto, and the air inlet of the air duct main pipe is The air cannon is connected.
The refurbishing furnace of a garbage incinerator according to claim 1, wherein the one-way damper is composed of a cross block, a cover plate and a connecting pipe.
A fire incinerator arrangement for a garbage incinerator according to claim 1, wherein the row of the fire trap is composed of a top plate and a support, the support is fixed on the fixed beam, and the top plate and the support pass through Fasteners are connected.
A garbage incinerator arson ignition device according to any one of claims 1 to 5, wherein the air gun is fixed to the outside of the grate furnace.