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Industrial boiler using emulsifying coke mortar burning device

A technology for industrial boilers and combustion devices, which is applied in the direction of using multiple fuels for combustion, the combination of multiple burners, and the supply of air/fuel for combustion. Liquefaction of coke slurry and ash, complex structure of combustion chamber, etc.

Inactive Publication Date: 2007-08-22
广州迪森热能设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from the above analysis that, firstly, the backfired coal-water slurry liquid slagging combustion furnace is not suitable for the combustion of emulsified coke slurry; secondly, the combustion chamber temperature of the backfired coal water slurry liquid slagging combustion furnace is still low The ash melting point of the emulsified coke slurry ash cannot be reached, and the emulsified coke slurry ash cannot be liquefied; finally, the combustion chamber structure of the reverse combustion type coal-water slurry liquid slagging combustion furnace is complicated, and the manufacturing cost is high
[0007] In addition, in order to make the system operate continuously and normally, the slag receiving device at the lower part of the burner must be replaced in time, and the liquid slag also contains a large amount of waste heat that can be used. If the liquid slag is directly flowed into the slag receiving device, it will cause waste of energy
[0008] Finally, liquid slag removal cannot completely remove the soot, and a small amount of soot will enter the boiler cavity. If the soot is not cleaned in time, it may cause dangerous accidents if it accumulates over time. The soot on the surface of the furnace or water pipe is blown up and taken away in time

Method used

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  • Industrial boiler using emulsifying coke mortar burning device
  • Industrial boiler using emulsifying coke mortar burning device
  • Industrial boiler using emulsifying coke mortar burning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Please refer to FIG. 1 and FIG. 2 , the industrial boiler of the present invention includes a horizontal boiler body and an emulsified coke slurry combustion device. Wherein, the boiler body includes a furnace 402, a drum 404 arranged above the furnace 402, a water pipe 406 arranged in the middle and upper part of the furnace 402 and close to the side wall of the furnace, a fire pipe arranged in the central area of ​​the drum 404 and immersed in water in the drum. Tube 405, ten convection zone soot blowing tubes 408 (four of which are schematically shown in Figure 1 ), and six furnace soot blowing tubes 409 (one of which is schematically shown in Figure 1 ). The emulsified coke slurry combustion device includes a shell 10, an emulsified coke slurry burner 70, an oil burner (not shown in the figure) and a gas burner (not shown in the figure). The emulsified coke slurry combustion device communicates with the furnace 402 .

[0057] Wherein, the soot blowing pipe 408 in t...

Embodiment 2

[0079] Please refer to Fig. 5 and Fig. 6, this embodiment is similar to Embodiment 1, the difference is:

[0080] Two soot blowing pipes 408 in the convection area are respectively used on both sides of the central area of ​​the furnace 402, and the soot blowing pipes 408 in the convection area are arranged adjacent to the water pipe 406. A portion of the outer surface faces the inner surface of the furnace 402 .

[0081] The opening area of ​​the liquid slag outlet 66 on the inner wall of the side wall 60 is approximately equal to one-twentieth of the cross-sectional area of ​​the combustion space 30 .

[0082] The vertical distance between the inner wall of the front end wall 20 and the inner wall of the rear end wall 40 is 1.5 times the inner diameter of the combustion space 30 .

[0083] The diameter of the outlet 44 is about half of the inner diameter of the combustion space 30 , and a conical transition chamber 48 is formed between the outlet 44 and the side wall 60 of ...

Embodiment 3

[0092] This embodiment is similar to Embodiment 1, the difference is:

[0093] There are three soot blowing pipe inlets 407 on the end wall of the furnace 402 away from the emulsified coke slurry combustion device. The boiler body includes three furnace soot blowing pipes 409 that can be inserted into and withdrawn from the soot blowing pipe inlets 407 and whose length is slightly longer than the furnace 402 .

[0094] An industrial boiler using an emulsified coke slurry combustion device is provided with two liquid slag outlets 66 of the same size distributed at intervals, and the opening area of ​​each liquid slag outlet 66 on the inner wall of the side wall 60 is approximately equal to three times the cross-sectional area of ​​the combustion space. one tenth.

[0095] The two liquid slag outlets 66 are surrounded by the same transition cavity 666 and are connected to the slag holding space 505 of the same slag discharge vehicle 500 .

[0096] The vertical distance between ...

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Abstract

The present invention discloses an industrial boiler adopting emulsified coke slurry combustion equipment. It includes boiler self-body and emulsified coke slurry combustion equipment. The boiler self-body includes furnace cavity, boiler barrel set over the furnace cavity, water pipe which is set in the upper portion of said furnace cavity and is adjacent to the side wall of furnace cavity and fire pipe which is set in the central zone of boiler barrel and is soaked in the water of boiler barrel interior. Said emulsified coke slurry combustion equipment includes a shell body formed from front end wall, rear end wall and side wall, in said shell body interior a cylindrical combustion space is formed, on the front end wall are set at least one emulsified coke slurry combustor, at least one oil combustor and / or at least one gas combustor and on the rear end wall an outlet is cut, said outlet is communicated with the furnace cavity. Said invention also provides the working principle of said industrial boiler and its concrete operation method.

Description

technical field [0001] The invention relates to an industrial boiler, in particular to an industrial boiler using an emulsified coke slurry combustion device. Background technique [0002] The relatively clean energy currently used by industrial boilers is mainly oil, natural gas or coal gas, etc. However, this has greatly increased the fuel costs of industrial boilers, seriously affecting the survival of enterprises that use and manufacture industrial boilers. [0003] For this reason, those skilled in the art are working hard to develop new available energy sources. Inexpensive, efficient and clean emulsified coke slurry fuel has gradually become a new favorite in this field. The use of emulsified coke slurry fuel in industrial boilers can not only make reasonable use of natural resources, but also reduce the fuel cost of industrial boilers. Therefore, countries all over the world are vigorously promoting emulsified coke slurry combustion technology. [0004] However, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23J3/00F23J1/08F23D17/00F23D23/00F23C1/00F23C5/00F23C7/00F23L1/00F24H1/00F22B11/00
Inventor 常厚春李祖芹马革耿生斌陈永超刘效洲
Owner 广州迪森热能设备有限公司
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