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Wet sludge incinerating treatment apparatus with particle drier

A treatment device and dryer technology, applied in the direction of oxidation treatment of sludge, incinerators, combustion methods, etc., can solve the problems of high cost of harmless treatment, complex sludge incineration system, high energy consumption of drying equipment, etc., to achieve The effect of simplifying dry incineration equipment, simplifying treatment process and saving operating cost

Active Publication Date: 2008-06-25
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing sludge incineration methods require the use of special equipment to dry the sludge before incineration. The drying and incineration are completed in two sets of equipment, and the system is complicated; the drying equipment consumes a lot of energy. , high operating costs and high safety requirements; and simple incineration of dry sludge is easy to produce NOx, so a denitrification device needs to be installed after the incinerator; at the same time, due to the sulfur content in the sludge, a desulfurization device needs to be equipped after the incinerator
This makes the sludge incineration system complicated and the cost of harmless treatment high

Method used

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  • Wet sludge incinerating treatment apparatus with particle drier
  • Wet sludge incinerating treatment apparatus with particle drier
  • Wet sludge incinerating treatment apparatus with particle drier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] figure 1 with figure 2 It is a schematic structural diagram of Example 1. It can be seen from the figure that the wet sludge incineration treatment device with a particle dryer in Example 1 includes a circulating fluidized bed incinerator hearth 1, a high-temperature gas-solid separator 2, and a tail flue 3. Composed of hot ash distribution valve 4, sludge breaking device 5, particle dryer 6, dryer exhaust treatment system 7 (including fine powder separator 71, cooler 72, steam-water separator 73 and fan 74, etc.).

[0034] The hot ash distribution valve 4 is located below the separator 2, the inlet is connected to the material leg 21 of the separator, and the outlet is respectively connected to the incinerator hearth 1 and the particle dryer 6, and its specific structure is as follows:

[0035] A vertical splitter plate 402 is arranged directly below the separator material leg 21, and its two sides are respectively the first feed chamber 403 and the second feed chamb...

Embodiment 2

[0044] image 3 with Figure 4 It is a schematic structural diagram of Example 2. It can be seen from the figure that the wet sludge incineration treatment device with a particle dryer in Example 2 includes a circulating fluidized bed incinerator hearth 1, a high-temperature gas-solid separator 2, and a tail flue 3. Composed of hot ash distribution valve 4, sludge breaking device 5, particle dryer 6, dryer exhaust treatment system 7 (including fine powder separator 71, cooler 72, steam-water separator 73 and fan 74, etc.).

[0045] The hot ash distribution valve 4 is located below the separator 2, the inlet is connected to the material leg 21 of the separator, and the outlet is respectively connected to the incinerator hearth 1 and the particle dryer 6, and its specific structure is as follows:

[0046] A vertical splitter plate 402 is arranged directly below the separator material leg 21, and its two sides are respectively the first feed chamber 403 and the second feed chamb...

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Abstract

The wet sludge drying and incinerating treatment apparatus consists of a circulating fluidized bed incinerator hearth, a high temperature gas-solid separator, a tail gas flue, a hot ash distributing valve, a sludge disperser, a drier and an exhaust gas treating unit. The present invention completes the drying and incinerating of sludge in single apparatus, and has less heat loss and no exhaust of gas with bad smell.

Description

technical field [0001] The invention relates to a waste (wet sludge) treatment device, in particular to a wet sludge treatment device which adopts a combination of drying and incineration with a particle drier. technical background [0002] Sludge is the solid residue after sewage treatment, and the amount of sludge accounts for about 3‰ to 5‰ of the sewage treatment volume (calculated with a water content of 97%). The amount of industrial and domestic sewage treatment in our country is increasing rapidly. With the continuous construction of sewage treatment plants, more sludge will be produced. The composition of sludge is very complex. In addition to a large amount of water, it also contains common organic matter, refractory organic matter, various trace elements, pathogenic microorganisms, parasite eggs, and heavy metals. [0003] The sludge treatment method with incineration as the core process can meet the requirements of reduction, stabilization and harmlessness to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G5/04F23G5/30F23G5/44C02F11/06
CPCY02W10/40
Inventor 吕清刚那永洁贠小银高鸣包绍麟孙运凯贺军矫维红马人熊王东宇
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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