Medium and small sized industrial pulverized-coal fired boiler

A pulverized coal boiler, small and medium-sized technology, applied in the direction of fire tube steam boiler, steam boiler, lump/powder fuel preparation, etc., can solve the problems of complicated equipment, expensive price, complicated technical process, etc., and achieve good ignition performance , Evenly supply pulverized coal and fully burn

Active Publication Date: 2007-07-25
CHINA COAL RES INST CCRI ENERGY SAVING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these small and medium-sized industrial pulverized coal boiler systems in foreign countries have complex technical processes and complex equipment, especially at high prices, which are not suitable for widespread use in my country.

Method used

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  • Medium and small sized industrial pulverized-coal fired boiler
  • Medium and small sized industrial pulverized-coal fired boiler
  • Medium and small sized industrial pulverized-coal fired boiler

Examples

Experimental program
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Embodiment Construction

[0024] In order to describe the structure and characteristics of the present invention in detail, the following preferred embodiments are given below and described with accompanying drawings.

[0025]As shown in Fig. 1, the present invention mainly includes a pre-furnace pulverizing device 10, a uniform pulverized coal supply device 50, a combustion device 60, a boiler body device 80, a dust removal and desulfurization device 90 and an automatic control device.

[0026] As shown in Fig. 1 and Fig. 2, the pre-furnace pulverizing device 10 of the present invention includes a high-pressure air pump 1, a baffle separator 2, a coal delivery pipe 3, a pulverized coal separator 4, a coal mill 5, and a cyclone separator 6 , bag filter 7, intermediate silo 8 and exhaust fan 9. The high-pressure air pump 1 is connected to the baffle separator 2 through the delivery pipe 11 , the inlet of the coal inlet pipe 3 is connected to the outdoor coal supply device, and the outlet of the coal inl...

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Abstract

A system of industrial pulverized - coal fired boiler in small or medium size comprises stokehole pulverizing unit including high pressure air pump , baffle separator , coal supplying pipe , etc ; pulverized coal supplying unit including coal conveying pipe , blanking pipe and air supplying pipe ; pulverized coal combustion unit including central air pipe , primary air pipe , internal and external secondary air pipe ; boiler body including shell , heating stove , two and three returning pipes ; dust removal and desulfurization unit including cyclone separator , bag-duster, desulfurization tower, exhaust fan and chimney. Advantages: fine pulverized coal with grain size above 200 mesh, good low-temp. combustion effect and high heat efficiency

Description

technical field [0001] The invention relates to a coal-fired boiler system, in particular to a small and medium-sized industrial pulverized coal boiler system. Background technique [0002] There are a large number of small and medium-sized industrial coal-fired boilers in my country. In the existing technology, these small and medium-sized industrial coal-fired boilers can generally be divided into layer-fired boilers, reciprocating boilers, and chain boilers. As fuel, some coarse coal powder is used. Due to the structural characteristics of these industrial coal-fired boiler systems, there are many problems, such as insufficient output, low boiler combustion efficiency, serious energy waste, and excessive pollutant emissions. The main reason for the above problems is that the overall technical equipment level of these industrial coal-fired boiler systems is low. In foreign developed countries, small and medium-sized industrial pulverized coal boiler systems have been indu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22B9/00F23K1/00F23J15/00
CPCY02E20/34
Inventor 王乃继纪任山王昕麻林何海军范玮肖翠微冀飞高明山
Owner CHINA COAL RES INST CCRI ENERGY SAVING TECH CO LTD
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