CN215259846U

CN215259846U - High-temperature fly ash collecting device of household garbage incinerator

Info

Publication number: CN215259846U
Application number: CN202120751265.0U
Authority: CN
Inventors: 杨鹏; 马庆阳
Original assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Current assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-12-21
Anticipated expiration: 2031-04-13

Abstract

The utility model relates to a high-temperature fly ash collection device for a domestic waste incinerator, comprising a soot blower, a fly ash collection pipe, an ash discharge valve and a high-temperature mixing mixer; The ash receiving section is arranged along the longitudinal direction of the furnace, and the top of the ash receiving section is connected with the bottom opening of the ash hopper; the outer end of the air inlet section is connected to the air outlet of the soot blower, and the outer end of the ash transport section The feed port of the high temperature mixing mixer is connected through the ash discharge valve, and the water inlet is connected with the water delivery pipeline on the high temperature mixing mixer. The utility model can export the high-temperature fly ash in the first channel and the second channel of the incinerator furnace, add water and stir, and then transport it out for processing; the device has the characteristics of low investment cost, simple structure, convenient maintenance, long service life and the like.

Description

High-temperature fly ash collecting device of household garbage incinerator

Technical Field

The utility model relates to a msw incineration technical field especially relates to a domestic waste burns burning furnace high temperature flying dust collection device.

Background

The garbage incineration technology is a technology for carrying out reduction, harmlessness and recycling treatment on garbage, which is rapidly developed in recent ten years, and has the advantages of strong adaptability to the garbage, low requirement on pretreatment of the garbage, wide range of application to the calorific value of the garbage, simplicity and convenience in operation and maintenance and the like, so that the garbage incineration technology is widely applied to treatment of urban garbage at present.

The waste incineration power generation process principle is that waste is placed into an incinerator to be combusted, heat energy is released, a waste heat boiler is used for recovering waste heat, heating water is supplied to the waste heat boiler to be changed into steam, the steam is sent into a steam turbine to push a steam turbine generator to rotate to do work, the heat energy of the steam is converted into electric energy, smoke after the heat energy is released is treated by a smoke purification system and then is discharged, and waste is changed into available resources from waste through changing a series of processes. The lower part of the waste heat boiler is provided with a grate of a waste incinerator, after the waste enters the boiler, the waste is firstly dried on a first-stage grate by using the heat of a hearth, then is incinerated on a second-stage grate and a third-stage grate, and finally is burnt out on a fourth-stage grate. A first channel, a second channel and a third channel are arranged above the hearth, membrane water-cooled walls are fully distributed around the hearth, and an economizer and a smoke preheater are arranged in the fourth channel. The upper part of the heat insulation hearth is provided with a first channel, the flue gas enters a second channel after going upwards in the first channel and turning 180 degrees at an outlet, and enters a third channel after going downwards to the outlet of the second channel and turning 180 degrees upwards, and the third channel is generally provided with a three-stage convection superheater.

During the garbage incineration process, a small amount of high-temperature fly ash is deposited at the lower parts of the first channel and the second channel. This portion of high temperature fly ash needs to be collected in a timely manner.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-temperature fly ash collecting device of a household garbage incinerator, which can lead out high-temperature fly ash in a first channel and a second channel of a hearth of the incinerator, add water and stir the high-temperature fly ash and then transport the high-temperature fly ash out for treatment; the device has the characteristics of low investment cost, simple structure, convenience in maintenance, long service life and the like.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a high-temperature fly ash collecting device of a household garbage incinerator is characterized in that a hearth of the incinerator is provided with a first channel and a second channel, and ash hoppers are arranged at the bottoms of the first channel and the second channel; the high-temperature fly ash collecting device comprises a soot blower, a fly ash collecting pipe, a soot unloading valve and a high-temperature mixing stirrer; the fly ash collecting pipe consists of an air inlet section, an ash receiving section and an ash conveying section which are connected in sequence; the ash receiving section is longitudinally arranged along the hearth, and the top of the ash receiving section is communicated with the bottom opening of the ash bucket; the outer end of the air inlet section is connected with an air outlet of the soot blower, the outer end of the ash conveying section is connected with a feed inlet of the high-temperature mixing stirrer through an ash discharge valve, and a water inlet is arranged on the high-temperature mixing stirrer and connected with a water conveying pipeline.

In the fly ash collecting pipe, the inner diameters of the ash receiving section and the ash conveying section are more than 1 m.

The fly ash collecting pipe is made of high-temperature-resistant and wear-resistant materials or is provided with a high-temperature-resistant and wear-resistant material lining.

Compared with the prior art, the beneficial effects of the utility model are that:

the high-temperature fly ash in the first channel and the second channel of the hearth of the incinerator can be led out, and the high-temperature fly ash is added with water and stirred and then is transported to the outside for treatment; the device has the characteristics of low investment cost, simple structure, convenience in maintenance, long service life and the like.

Drawings

Fig. 1 is a schematic structural diagram of a high-temperature fly ash collecting device of a domestic garbage incinerator.

Fig. 2 is a view from direction a in fig. 1.

In the figure: 1. hearth 2, first channel 3, second channel 4, ash bucket 5, fly ash collecting pipe 6, ash discharging valve 7, high temperature mixing stirrer 8, soot blower

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

as shown in fig. 1 and fig. 2, in the high-temperature fly ash collecting device of the household garbage incinerator of the present invention, a hearth 1 of the incinerator is provided with a first channel 2 and a second channel 3, and the bottoms of the first channel 2 and the second channel 3 are provided with an ash hopper 4; the high-temperature fly ash collecting device comprises a soot blower 8, a fly ash collecting pipe 5, an ash discharging valve 6 and a high-temperature mixing stirrer 7; the fly ash collecting pipe 5 consists of an air inlet section, an ash receiving section and an ash conveying section which are connected in sequence; wherein, the ash receiving section is arranged longitudinally along the hearth 1, and the top of the ash receiving section is communicated with the bottom opening of the ash bucket 4; the outer end of the air inlet section is connected with an air outlet of a soot blower 8, the outer end of the ash conveying section is connected with a feed inlet of a high-temperature mixing stirrer 7 through an ash discharge valve 6, and a water inlet is arranged on the high-temperature mixing stirrer 7 and is connected with a water conveying pipeline.

In the fly ash collecting pipe 5, the inner diameters of the ash receiving section and the ash conveying section are more than 1 m.

The fly ash collecting pipe 5 is made of high temperature resistant and wear resistant materials or is provided with a high temperature resistant and wear resistant material lining.

The working process of the high-temperature fly ash collecting device of the household garbage incinerator is as follows: after the domestic garbage is incinerated in the incinerator, high-temperature fly ash deposited in the first channel 2 and the second channel 3 of the hearth 1 is collected into the fly ash collecting pipe 5 through the ash bucket 4, the high-temperature fly ash in the fly ash collecting pipe 5 is blown into the high-temperature mixing stirrer 7 by the ash blowing fan 8 to be mixed and stirred with water, and the mixed plaster is bagged and delivered out for treatment.

A domestic waste burns burning furnace high temperature flying dust collection device for with the furnace in the high temperature flying dust that first passageway and second passageway deposit get off collect the flying dust collecting pipe, the flying dust collecting pipe chooses for use high temperature resistant, wear-resisting material. The fly ash collecting pipe has the pipe diameter of the part for receiving and conveying ash larger than 1 meter, has large space, can effectively reduce the temperature of the fly ash, and simultaneously utilizes the soot blower to blow in normal temperature air and can also effectively reduce the temperature of the fly ash. The ash blowing fan blows high-temperature fly ash in the fly ash collecting pipe into the high-temperature mixing stirrer by utilizing the pneumatic transmission principle to be mixed and stirred with water, and the mixture is bagged and delivered outside for treatment.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. a high-temperature fly ash collection device for a domestic waste incinerator, characterized in that the furnace chamber of the incinerator is provided with a first passage and a second passage, and the bottom of the first passage and the second passage is provided with an ash hopper; the high temperature The fly ash collection device includes a soot blower, a fly ash collection pipe, an ash discharge valve and a high-temperature mixing mixer; the fly ash collection pipe is composed of an air inlet section, an ash receiving section and an ash conveying section connected in sequence; wherein, the ash receiving section It is arranged longitudinally along the furnace, and the top of the ash receiving section is connected with the bottom opening of the ash hopper; the outer end of the air inlet section is connected to the air outlet of the soot blower, and the outer end of the ash conveying section is connected to the feed port of the high temperature mixing mixer through the ash discharge valve , The high temperature mixing mixer is equipped with a water inlet and is connected to the water pipeline.

2 . The high-temperature fly ash collection device for a domestic waste incinerator according to claim 1 , wherein, in the fly ash collection pipe, the inner diameter of the ash receiving section and the ash conveying section is greater than 1 m. 3 .

3. A high-temperature fly ash collection device for a domestic waste incinerator according to claim 1 or 2, wherein the fly ash collection pipe is made of high temperature-resistant and wear-resistant materials, or is provided with high-temperature and wear-resistant materials. Material lining.