CN211424410U

CN211424410U - Air chamber structure assembled on wet-type slag leakage mechanical conveying device

Info

Publication number: CN211424410U
Application number: CN201922246705.2U
Authority: CN
Inventors: 姜天天; 周凯滨; 李剑; 季建珍
Original assignee: HANGZHOU NEW CENTURY ENERGY ENVIRONMENTAL PROTECTION ENGINEERING CO LTD
Current assignee: HANGZHOU NEW CENTURY ENERGY ENVIRONMENTAL PROTECTION ENGINEERING CO LTD
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-09-04
Anticipated expiration: 2029-12-13

Abstract

The utility model relates to a garbage incinerator. The air chamber structure is characterized by simple structure and difficult adhesion of leaked slag. The technical scheme is as follows: an air chamber structure assembled on a wet slag leakage mechanical conveying device comprises three air channels arranged below a grate, wherein each air channel comprises a large air chamber and three small air chambers communicated with the large air chamber; the method is characterized in that: a slag falling pipe which is vertically arranged and communicated with the wet slag leakage mechanical conveying device is arranged at the bottom of the small air chamber, and a gate valve and an expansion joint are arranged at the bottom end of the slag falling pipe; the air chamber partition plate and the side wall of the small air chamber form an included angle of 55-65 degrees with the horizontal plane.

Description

Air chamber structure assembled on wet-type slag leakage mechanical conveying device

Technical Field

The utility model relates to a garbage incinerator, in particular to an air chamber structure of a garbage incinerator grate assembled on a wet-type slag leaking mechanical conveying device.

Background

In the existing incineration grate structure, because gaps exist among grate segments and the air chamber is arranged at the lower part of the grate, a certain amount of ash and slag leakage can fall into the air chamber, and the grate slag leakage enters the slag leakage conveying device through a slag discharge pipe arranged at the outlet of the air chamber and is sent out. The slag leakage conveying device generally adopts a pneumatic conveying device, a dry conveying device or a wet conveying device. For the wet type conveying device, because the phenomenon of water vapor overflow exists, grate slag leakage is easy to adhere to the side wall of the air chamber, the air supply efficiency is influenced, and the wet type conveying device is not easy to clean, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the deficiencies in the above-mentioned background art, providing an assembly wind chamber structure on wet-type leaks sediment mechanical conveyor, this wind chamber structure should have simple structure, leak the difficult characteristics that bond of sediment.

The technical scheme of the utility model is that:

an air chamber structure assembled on a wet slag leakage mechanical conveying device comprises three air channels arranged below a grate, wherein each air channel comprises a large air chamber and three small air chambers communicated with the large air chamber; the method is characterized in that: a slag falling pipe which is vertically arranged and communicated with the wet slag leakage mechanical conveying device is arranged at the bottom of the small air chamber, and a gate valve and an expansion joint are arranged at the bottom end of the slag falling pipe; the air chamber partition plate and the side wall of the small air chamber form an included angle of 55-65 degrees with the horizontal plane.

The large air chamber and the small air chamber are both provided with a manhole door; and an air door adjusting device is arranged between the large air chamber and the small air chamber.

The utility model has the advantages that:

the utility model is suitable for a large-scale domestic waste incineration grate (reciprocating type grate) that single row or multiseriate structural arrangement can leak the ash to carry to wet conveyor to each regional air distribution of grate and with the grate, avoids the grate to leak the sediment and bonds in the plenum, has reduced the maintenance cost.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic view of the structure in the direction of a-a in fig. 1.

Detailed Description

The present invention will be further described with reference to the drawings attached to the specification, but the present invention is not limited to the following embodiments.

As shown in figure 1, the air chamber structure assembled on the wet slag leakage mechanical conveying device comprises three air channels arranged below a grate 9, wherein each air channel comprises an air chamber 1 and three small air chambers 2 communicated with the air chamber.

As shown in fig. 1 and 2: the large air chambers of the three air ducts are divided into a left air duct large air chamber A1 and a right air duct large air chamber A2 (wherein two air ducts share the right air duct large air chamber); the small air chambers of the three air channels are divided into three left air channel small air chambers B1, three middle air channel small air chambers B2 and three right air channel small air chambers B3, the left air channel big air chamber is communicated with the three left air channel small air chambers, and the right air channel big air chamber is simultaneously communicated with the three middle air channel small air chambers and the three right air channel small air chambers. The small air chambers of the three air channels can be divided into three rows according to the combustion stage, namely a front small air chamber C1 corresponding to the drying section of the grate, a middle and small air chamber C2 corresponding to the combustion section of the grate and a rear small air chamber C3 corresponding to the burnout section of the grate, and air distribution can be carried out according to the combustion requirement.

The large air chamber is provided with a large air chamber manhole door 1.1, the small air chamber is also provided with a small air chamber manhole door 2.1, an air door adjusting device 1.3 is arranged between the large air chamber and the small air chamber, each manhole door is used for inspection and maintenance of the bottom of the grate and the air volume adjusting device, and the large air chamber manhole door is arranged in front of the furnace and is convenient for maintenance personnel to enter.

In each air channel, air is fed from a primary air inlet port 1.2 of the large air chamber and then distributed to the small air chambers of each combustion area through the air door adjusting device, the air pressure of each small air chamber is uniformly distributed, and the arrangement of a primary air pipeline is simple.

The included angle between the air chamber partition plate 2.2 of the small air chamber and the horizontal plane is 55-65 degrees (preferably 60 degrees), the included angle between the side wall 2.3 of the small air chamber and the horizontal plane is 55-65 degrees (preferably 60 degrees), and due to the fact that the inclined angle between the air chamber partition plate and the side wall is increased, ash in the air chamber can conveniently slide down.

The bottom of each small air chamber is provided with a vertically arranged slag falling pipe 3, the top of the slag falling pipe is communicated with the small air chamber, the bottom of the slag falling pipe is communicated with a wet slag leakage mechanical conveying device 8, and a gate valve 4 and an expansion joint 5 are arranged between the slag falling pipe and the wet slag leakage mechanical conveying device. After the gate valve is closed, the ash leaked from the grate can be temporarily stored in the slag falling pipe and the air chamber, and the wet-type slag leaking mechanical conveying device can be maintained and overhauled without stopping the furnace. The temperature of primary air is about 200 ℃ when the air chamber operates, and the expansion joint of the slag falling pipe can meet the thermal state expansion of the air chamber. Because the distance between the slag falling pipes is wider, a platform (omitted in the figure) spanning over the wet slag leakage mechanical conveying device can be arranged above the slag falling pipes, and the workload of maintenance personnel can be reduced.

Claims

1. An air chamber structure assembled on a wet slag leakage mechanical conveying device comprises three air channels arranged below a grate, wherein each air channel comprises a large air chamber (1) and three small air chambers (2) communicated with the large air chamber; the method is characterized in that: a slag falling pipe (3) which is vertically arranged and communicated with the wet slag leakage mechanical conveying device is arranged at the bottom of the small air chamber, and a gate valve (4) and an expansion joint (5) are arranged at the bottom end of the slag falling pipe; the air chamber partition plate and the side wall of the small air chamber form an included angle of 55-65 degrees with the horizontal plane.

2. The air chamber structure assembled on the wet slag leaking mechanical conveying device of claim 1, wherein: the large air chamber and the small air chamber are provided with a manhole door; an air door adjusting device (1.3) is arranged between the large air chamber and the small air chamber.