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Energy-saving boiler

A boiler and furnace technology, applied in the field of energy-saving boilers, can solve problems such as waste of resources, accumulation of waste slag, and insufficient effect of boiler coal consumption, and achieve the effects of saving boiler coal and reducing heat absorption

Inactive Publication Date: 2014-03-12
HUBEI CHUXING CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the amount of waste slag blended in existing fluidized boilers can only reach 50%, which is not obvious enough to reduce boiler coal consumption, and will also cause accumulation of waste slag, which not only wastes resources, but also pollutes the environment.

Method used

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  • Energy-saving boiler

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Embodiment Construction

[0011] Such as figure 1 As shown, the present invention includes a furnace 1, a combustion chamber 2 is arranged below the furnace 1, a buried pipe 3 is arranged in the combustion chamber, a lower header 6 is arranged at both ends of the buried pipe 3, and a refractory pouring material layer is arranged outside the buried pipe 3 4. The refractory castable is PN-80, the main component is AL 2 o 3 and SiO 2 , its refractoriness ≥ 1790 ℃.

[0012] A furnace wall 5 is provided on the periphery of the furnace 1 and the combustion chamber 2 .

[0013] A steam drum 7 is arranged above the furnace 1, and the steam drum 7 communicates with the lower header 6 through a downcomer;

[0014] When the boiler is working, the waste furnace slag enters the combustion chamber 2 and burns to release heat. Since the refractory pouring material layer 4 is provided outside the buried pipe 3, the heat absorption is small, and the temperature in the combustion chamber is less affected, and then t...

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Abstract

An energy-saving boiler comprises a hearth, a combustion chamber is arranged below the hearth, buried pipes are arranged in the combustion chamber, the two ends of each buried pipe are provided with lower collecting boxes, and fire-resistant poured material layers are arranged outside the buried pipes. A boiler wall is arranged on the peripheries of the hearth and the combustion chamber. A steam pocket is arranged above the hearth and communicated with the lower collecting boxes through descending pipes. The inner wall of the hearth is a water cooled wall which is connected with the steam pocket. According to the energy-saving boiler, the fire-resistant poured material layers are arranged outside the buried pipes and can reduce heat absorption capacity of the buried pipes, and therefore the boiler can use waste slag as fuel completely, a great deal of boiler coal is saved, energy is saved, and the environment is protected.

Description

technical field [0001] The invention relates to a boiler device, in particular to an energy-saving boiler using waste slag from a gas generator and a hot blast stove as fuel. Background technique [0002] SHF fluidized boilers are widely used in chemical fertilizer enterprises, through the water-cooled buried pipes, water-cooled walls, superheaters in the flue, economizers, and air preheaters arranged in the furnace to absorb heat and produce steam for use in corresponding posts. The advantages of this furnace type are quick start, simple structure and simple operation, but the disadvantage is that it has narrow adaptability to coal types. [0003] In synthetic ammonia or phosphorus compound fertilizer chemical production enterprises, the production of coal rod gas-making furnaces and bituminous coal-burning hot blast stoves will produce a large amount of gas-making furnace waste and hot blast stove waste slag every day. The calorific value of these waste residues can reach ...

Claims

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Application Information

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IPC IPC(8): F22B31/08F22B37/10
Inventor 袁丰邓伏兵韦斌朱文斌
Owner HUBEI CHUXING CHEM