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Sludge burning control method and sludge burning device

A control method and technology of combustion equipment, applied in the direction of combustion method, combustion type, lighting and heating equipment, etc., can solve the problems of stable combustion, huge cost of system equipment, increase, etc., and achieve miniaturization of system equipment, low cost, and reduced load Effect

Inactive Publication Date: 2012-07-04
KUBOTA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology also cannot effectively maintain the combustion temperature of the sludge incinerator in a stable combustion state when the calorific value of the sludge fluctuates in a large range.
[0005] In addition, in order to cope with the current situation where the calorific value of sludge fluctuates widely and to maintain a stable combustion temperature, a large margin must be left in the combustion capacity of combustion equipment such as sludge incinerators, which will lead to bulky system equipment and increased costs.

Method used

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  • Sludge burning control method and sludge burning device
  • Sludge burning control method and sludge burning device
  • Sludge burning control method and sludge burning device

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Example 1 shows the case of switching between the spontaneous combustion operation and the combustion-supporting operation of the sludge incinerator before and after the design point of the sludge combustion control system. in, figure 1 It is a schematic diagram of the sludge combustion control system of this invention.

[0025] Such as figure 1 As shown, the sludge combustion facility is equipped with the sludge incinerator 1 : a temperature measurement unit 3 in the sludge incinerator, a water spray amount adjustment unit 4 , an auxiliary fuel supply amount adjustment unit 5 , and a combustion air temperature adjustment unit 6 .

[0026] A sludge input port is provided on the side wall of the sludge incinerator 1, and the sludge input port is connected with the sludge input machine 2, and the sludge is input into the sludge incinerator through the sludge input port of the sludge input machine 2. Furnace 1. Then, the sludge is incinerated by the sludge incinerator 1...

Embodiment 2

[0075] Example 2 shows the case of switching between the spontaneous combustion operation and the combustion-supporting operation of the sludge incinerator before and after the corresponding lower limit value of the calorific value of the sludge. That is, it is an embodiment in which the self-ignition operation is performed without using auxiliary fuel within the scope of the design object.

[0076] The sludge combustion equipment in Example 2 is exactly the same as the sludge combustion equipment in Example 1, so the description is omitted here.

[0077] Hereinafter, a method for adjusting the preheated air temperature (fluid air temperature) will be described.

[0078] image 3 It is an explanatory diagram of the adjustment operation of the sludge combustion control system according to the second embodiment of the present invention, and is used to explain the adjustment method of the preheating air temperature.

[0079] Such as image 3 as shown, image 3 Consists of thr...

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Abstract

The invention provides a sludge incineration control method and a sludge incineration device, wherein at least the water spray amount or the auxiliary fuel supply amount in a sludge incinerator is adjusted, so that the temperature in the sludge incinerator can be controlled within a certain range; the sludge incineration control method is characterized in that the temperature of the combustion air supplied into the sludge incinerator is adjusted as per the heat productivity of the sludge. Even under the condition that the properties of the sludge changes greatly, the stable combustion state of the sludge incinerator can be efficiently ensured, the demands for a great deal of auxiliary fuel and a great deal of cooling water are avoided, the system is miniaturized, and the cost is lowered.

Description

technical field [0001] The invention relates to a sludge combustion control method and sludge combustion equipment. Background technique [0002] In the prior art, sludge incinerators are generally used to incinerate sludge. In order to keep the combustion operation in the sludge incinerator in a stable state, there is known a technique of controlling cooling water supplied to the sludge incinerator based on the combustion temperature of the sludge incinerator (Patent Document 1). However, for the technology proposed in Patent Document 1, if the calorific value of the sludge is unstable and fluctuates in a large range, the supply adjustment amount of cooling water will be very large, and the load on the cooling water system will increase. If the calorific value of the sludge is low, it may not be possible to maintain the combustion temperature of the sludge incinerator in a stable combustion state even if cooling water is not supplied. [0003] On the other hand, the techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/50F23G5/00
Inventor 川岛胜小山智之竹中彰西田光秀横田修
Owner KUBOTA LTD