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Slurry feeding device in front of stove burning petroleum water coke slurry

A technology of industrial boilers and water coke slurry, which is applied in the petroleum industry, combustion methods, liquid fuel supply/distribution, etc., can solve problems such as easy ash accumulation, pipeline blockage, and difficult to burn out, so as to prevent hard precipitation and blockage Effect

Inactive Publication Date: 2009-12-09
GUANGDONG TIANYI GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention just replaces the high-pressure slurry supply pump in the coal-water slurry input device with a low-pressure slurry delivery pump, and uses an air pressurized slurry supply tank to output high-pressure coal-water slurry to the combustion spray gun, which avoids the wear problem of the high-pressure slurry supply pump. The system is only designed for the characteristics of coal water slurry. If it is directly used to transport petroleum water coke slurry, it will also cause problems such as easy blockage of pipelines, difficulty in ignition, coking, easy ash accumulation, and difficulty in burning out during combustion. The petroleum coke slurry needs to be preheated and atomized before it is delivered to the combustion spray gun, which cannot burn the petroleum coke slurry stably, reliably and perfectly
[0004] Therefore, it is necessary to provide a method that can overcome the problems that petroleum water coke slurry is prone to deposits, hard deposits, and pipeline blockage in the slurry supply pipeline, and it is difficult to catch fire when burning, easy to coke, easy to accumulate ash, and difficult to burn out, so as to ensure The continuous and reliable operation of the petroleum coke slurry supply pipeline and the slurry supply device in front of the furnace that can fully and efficiently burn the petroleum coke slurry have become an urgent problem to be solved

Method used

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  • Slurry feeding device in front of stove burning petroleum water coke slurry
  • Slurry feeding device in front of stove burning petroleum water coke slurry
  • Slurry feeding device in front of stove burning petroleum water coke slurry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] According to the first embodiment of the present invention, the front-furnace slurry supply device of an industrial boiler burning petroleum water coke slurry is such as figure 1 As shown, this is a specific embodiment of a slurry supply device for a power station boiler that uses petroleum water coke slurry, which includes: daily slurry storage tank 1, three slurry supply pumps 2, and four sets of twelve petroleum water coke Slurry spray gun 3. The three slurry supply pumps 2 in this embodiment all use a three-stage variable frequency adjustment screw pump, which can be used to adjust the output pressure of the slurry supply pump, that is, the slurry pressure entering the petroleum water coke slurry spray gun 3 to meet the requirements of the power station boiler load change Generally, two of the three slurry supply pumps 2 can be used for normal operation, and the other can be used as a backup to ensure continuous operation. The cross-sectional structure of the daily slu...

Embodiment 2

[0028] According to the second embodiment of the present invention, the front-furnace slurry supply device of an industrial boiler that burns petroleum water coke slurry is an example of technical improvement of the slurry supply device of a power station boiler that uses petroleum water coke slurry. Compared with the embodiment, the difference is that the low elbow of all pipelines (that is, the 90-degree right-angle elbow in the long low-level pipeline) is replaced by a three-way pipe. The structure of the low-level elbow is as follows: image 3 Shown. The petroleum water coke slurry enters from one of the straight inlets 16 of the three-way pipe and flows out from the side outlet 17. The straight outlet at the other end of the three-way pipe is sealed with a bolt or other detachable device to seal the blind plate 18. When the pipe is blocked, The blind plate 18 can be opened to facilitate cleaning and dredging of the pipeline.

Embodiment 3

[0030] According to the third embodiment of the present invention, the slurry supply device in front of the furnace of an industrial boiler that burns petroleum water coke slurry, and the specific embodiment of the slurry supply device of a power station boiler that uses petroleum water coke slurry is similar to the first implementation described above. Compared with the method, there are also multiple sets of clean water flushing pipelines 13 to separately perform the slurry supply pump 2, the petroleum water coke slurry spray gun 3, the slurry supply pipeline 4, the filter 5, the preheater 6 and the backup filter 9. rinse. Among them, the slurry supply pump 2, the filter 5, and the backup filter 9 can be provided with a common set of clean water flushing pipeline 13, and the three slurry supply pumps 2, the filter 5, and the backup filter 9 can be separately controlled by the pipeline valve. The slurry supply pipeline 4 can be provided with a separate set of clean water flushing...

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Abstract

A furnace slurry supply device for an industrial boiler burning petroleum coke slurry, especially suitable for fuel supply for industrial boilers burning petroleum coke slurry, including a daily slurry storage tank, at least one slurry supply pump and at least one Petroleum water coke slurry spray gun, the daily slurry storage tank is equipped with a slurry supply pipeline, the daily slurry storage tank is connected to the inlet of the slurry supply pump through the pipeline, and the outlet of the slurry supply pump is connected to the petroleum water coke slurry spray gun through the pipeline. A filter is installed on the connecting pipeline between the slurry tank and the slurry supply pump, and a preheater is also installed on the connecting pipeline between the slurry supply pump and the petroleum water coke slurry spray gun, and the petroleum water coke slurry spray gun is connected with an atomized petroleum water Steam intake pipe for char slurry fuel. The inner and lower sides of the daily coke storage slurry can also be equipped with a stirrer. The device has a simple structure, no hard deposits in the fuel supply, stable and reliable operation, stable, reliable, sufficient and perfect combustion of the sprayed petroleum water coke slurry, and the exhaust gas is convenient for environmental protection treatment with minimal environmental pollution.

Description

Technical field [0001] The invention relates to a fuel supply device, in particular to a furnace front slurry supply device for an industrial boiler burning petroleum water coke slurry fuel, which is suitable for an industrial boiler burning petroleum water coke slurry. Background technique [0002] At present, due to the increasingly serious environmental pollution problem, a large number of industrial boilers have to control pollution and switch to heavy oil, natural gas or gas and other fuels called "clean fuels" that emit less pollution after combustion, which leads to humans The demand for natural energy is increasing. However, there are fewer and fewer natural energy sources that can be used by humans on the earth, and the prices are getting higher and higher, making the cost of burning such "clean fuel" in industrial boilers greatly increased. Therefore, people are always looking for a new fuel that is environmentally friendly and inexpensive. This application is to carry ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23K5/04F23K5/14F23K5/18C10L1/32
Inventor (请求不公开姓名)
Owner GUANGDONG TIANYI GROUP
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