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Boiler suspension burning device and boiler provided with same

A suspension combustion and boiler technology, applied in the field of boiler combustion devices, can solve problems such as high energy consumption, and achieve the effects of improving combustion efficiency, reducing corrosion and wastage, and reducing failure rate

Inactive Publication Date: 2010-12-08
NINGBO GOOD TURN ENERGY SAVING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Looking at the prior art disclosed above, when the coal in the boiler suspension combustion device enters the burner, it has only been pulverized and pressurized, and the combustion efficiency needs to be improved. At the same time, the pulverizer needs to work continuously, so the energy consumption is relatively large

Method used

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  • Boiler suspension burning device and boiler provided with same
  • Boiler suspension burning device and boiler provided with same
  • Boiler suspension burning device and boiler provided with same

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] Such as figure 1 with figure 2 As shown, the boiler in this embodiment includes a boiler body 1 and a suspension combustion device located on one side of the boiler body 1. The suspension combustion device includes a coal feeder 4, a conveyor 3, a coal mill 2 and a burner 5. The coal inlet end of the device 3 is connected to the outlet of the coal feeder 4, the coal outlet end is connected to the coal grinding inlet of the coal mill 2, and the burner 5 communicates with the pulverized coal output port of the coal mill 2 through a delivery pipe 51, combining image 3 As shown, the boiler body 1 has a tail gas discharge pipe 11 , and the tail gas discharge pipe 11 leads into the coal grinding inner cavity of the coal mill 2 . Refer again figure 2 As shown, the coal mill 2 is powered by a coal grinding motor 21 to complete the coal gr...

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Abstract

The invention relates to a boiler suspension burning device which comprises a coal feeder, a conveyer, a coal mill and a burner, wherein a coal inlet end of the conveyer is connected with the outlet of the coal feeder, a coal outlet end is connected with the coal milling inlet of the coal mill, the burner is communicated with a coal powder delivery outlet of the coal mill, and an external boiler exhaust discharge pipe is introduced into the coal milling inner cavity of the coal mill. The invention also discloses a boiler provided with the burning device. Compared with the prior art, the invention has the advantages of preheating the coal powder by residual heat of the exhaust of the boiler body, being conductive to improving the coal milling efficiency and the burning efficiency of the coal powder, simultaneously reducing the waste of energy, reducing the corrosion and wear of the equipment because the humidity of the coal powder is reduced, reducing the failure rate, and also prolonging the operating time of the equipment.

Description

technical field [0001] The invention relates to a boiler combustion device, in particular to a boiler suspension combustion device, and also relates to a boiler provided with the combustion device. Background technique [0002] my country is rich in coal quality resources, but the coal quality varies greatly. Low-quality coal makes the combustion efficiency of boilers low. Measures must be taken to solve problems such as ignition and slag discharge. For this reason, many boiler suspension combustion devices have appeared. The basic idea is: coal is sent from the coal feeder to the coal mill, and then the coal mill transports the ground coal to the burner (or burner), The burner sprays the pulverized coal into the boiler for combustion. The coal pulverizer is mainly used for coal grinding, but at the same time, it supplies the pulverized coal with air to overcome the resistance of the burner nozzle. The burner can suspend the pulverized coal for compound combustion. There ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C5/00F23K1/04
Inventor 李志强张洪义唐孝强
Owner NINGBO GOOD TURN ENERGY SAVING TECH
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