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Spiral feeding system in front of circulating fluidized bed garbage incinerator

A waste incinerator and circulating fluidized bed technology, applied in the direction of incinerator, combustion type, combustion method, etc., can solve the problems of garbage agglomeration, unstable furnace pressure, insufficient fuel combustion stability, etc., to ensure looseness, Improve efficiency and effectiveness, avoid the effect of insufficient combustion

Active Publication Date: 2021-02-23
甸石(上海)环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the existing garbage incineration feeding device adds garbage to the furnace, due to structural design defects, it is very easy to have garbage agglomeration during the feeding process, which makes the fuel into the furnace insufficiently loose, which in turn leads to insufficient combustion stability of the fuel, and the furnace Unstable pressure and other issues

Method used

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  • Spiral feeding system in front of circulating fluidized bed garbage incinerator
  • Spiral feeding system in front of circulating fluidized bed garbage incinerator
  • Spiral feeding system in front of circulating fluidized bed garbage incinerator

Examples

Experimental program
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Effect test

Embodiment 1

[0050] figure 1 It is a schematic structural diagram of the spiral feeding system in front of the circulating fluidized bed waste incinerator, figure 2 It is a schematic diagram of the structure of the feeder, image 3 It is a schematic diagram of the structure of the dial tooth plate, Figure 4 is the side view of the feeder, Figure 5 A-A sectional view of the feeder, Image 6 It is a schematic diagram of the installation of the T-shaped screen, Figure 7 It is the front view of the T-shaped screen.

[0051] Such as figure 1 As shown, the spiral feeding system in front of the circulating fluidized bed garbage incinerator includes:

[0052] The first-level feeder 2 is used to transport garbage to the incinerator 21; the first-level feeder 2 is provided with a hopper 1, and the first-level feeder 2 communicates with the incinerator 21 through a connecting channel;

[0053] Specifically, the first-level feeder 2 can choose the first-level feeder equipment commonly used ...

Embodiment 2

[0060] On the basis of the above embodiments, for example, the shifter 8 includes several shifting toothed plates 22 arranged side by side, and the installation distance of the shifting toothed plates 22 is 200mm. The shifting teeth 27, the shifting teeth 27 include low shifting teeth and high shifting teeth with different tooth heights, and the low shifting teeth and high shifting teeth are arranged alternately, so that the installed shifting teeth 22 The low shifting teeth and the high shifting teeth are respectively arranged alternately according to a certain helix angle; the shifting teeth 27 on the adjacent shifting tooth discs 22 are arranged alternately.

[0061] Specifically, the pusher 8 also includes a rotating shaft 24 connected to the driving motor 7 of the pusher, a rotating cylinder 23 fixedly sleeved on the rotating shaft 23, and a through hole 28 is provided in the center of the shifting toothed disc 22, The dial tooth plate 22 is sheathed on the drum 23 throug...

Embodiment 3

[0071] On the basis of the above-mentioned embodiments, as an example, the feeding system is also provided with a secondary feeder 11 between the primary feeder 2 and the incinerator 21, and the connecting channel includes the vertical shaft 6 and the blanking Pipe 15, the secondary feeder 11 communicates with the primary feeder 2 through the shaft 6, and the secondary feeder 11 communicates with the incinerator 21 through the drop pipe 15; the setter 8 and T The type screen 10 is arranged in the vertical shaft 6 connecting the primary feeder 2 and the secondary feeder 1 .

[0072] Wherein, the secondary feeder 11 can choose a secondary feeder with a screw blade with crushing function.

[0073] Specifically, the T-shaped screen 10 is arranged obliquely downwards and backwards along the running direction of the garbage in the secondary feeder 11, so as to ensure that the garbage with a small particle size falls in the direction of the running direction of the garbage in the sec...

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Abstract

The invention provides a spiral feeding system in front of a circulating fluidized bed garbage incinerator, comprising: a primary feeder for transporting garbage to the incinerator; the primary feeder is provided with a feeding hopper, a The level feeder communicates with the incinerator through the connecting channel; the feeder is arranged in the connecting channel and is used to disperse the garbage leading to the incinerator; the feeder is connected with a feeder drive motor; T-shaped screen , which is obliquely set in the connecting channel and below the feeder, and is used to screen the falling garbage with a given particle size. The feeding system improves the operation stability of the screw feeding system in front of the furnace, avoids the phenomenon of garbage agglomeration during the feeding process, ensures the looseness of the fuel in the garbage into the furnace, and prevents problems such as back-channeling of flue gas.

Description

technical field [0001] The invention belongs to the technical field of garbage incineration treatment, and in particular relates to a spiral feeding system in front of a circulating fluidized bed garbage incinerator. Background technique [0002] The stability of the flue gas pressure and combustion temperature of the circulating fluidized bed waste incinerator has an important impact on ensuring the emission of flue gas indicators up to the standard and improving the thermal efficiency of the boiler system. During the operation of the fluidized bed incinerator, the pressure of the flue gas in the furnace needs to be kept stable to prevent the flue gas from reversing in the fuel feed pipe and leaking from the furnace-related interface. And stability, so the quality of the feed material plays a very important role in maintaining the stable operation of the entire boiler system. [0003] When the existing garbage incineration feeding device adds garbage to the furnace, due to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G5/44F23G5/033
CPCF23G5/033F23G5/444
Inventor 方旭东王汝佩董星星陈少卿张献斌陈家红左健
Owner 甸石(上海)环保科技有限公司
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