Equipment for reducing frictional wear by welding omni-bearing fins in seamless steel tubes

Abstract

The invention discloses equipment for reducing frictional wear by welding omni-bearing fins in seamless steel tubes. The equipment comprises a hot slag storage tank 5 and a temperature adjusting and reducing tank 11 and is characterized in that a feeding pipe 4 is connected onto the hot slag storage tank 5, the other end of the feeding pipe 4 is connected with a vacuum feeding device 1, two ends of a discharging pipe 6 and two ends of a circulating pipe 12 are connected with a fermentation tank 9 and the vacuum feeding device 1 respectively, and a centrifugal pump 8 is mounted on the discharging pipe 6. The equipment can greatly slow down the frictional wear caused to tube walls by ash in the tangential component direction, the tubes have a good anti-wear function, the key technology for welding longitudinal fins inside tubes is realized, main body heat-exchange components adopt multiple cold-drawn internally and externally hexagonal seamless steel tubes, one fin is welded on each of six wall surfaces of the inner wall of each seamless steel tube in the length direction, the number of heat-exchange tubes is maximized, water side gaps are uniform, the heat-exchange area is increased by 2 / 3, the heat transfer function is enhanced, the fins, which rotate with barrels and are located inside heat-exchange tube groups, at the slag end and the furnace end of a slag cooling machine raise and throw the hot slag continuously to form a thin-layer material curtain, in the throwing process of materials, cold slag particle surfaces and hot slag particle surfaces are renewed continuously, and conduction heat transfer of slag particles is enhanced.

Description

technical field [0001] The invention relates to the technical field of recovery of high-temperature hot slag cooling heat energy, in particular to a device for reducing friction and wear by welding omni-directional warps of seamless steel pipes for pots. Background technique [0002] Coal, as the main primary energy source in my country, accounts for 87% of the total energy resources. The national conditions of resources determine that my country's energy structure is dominated by coal combustion. The energy consumption of heating projects in a large number of domestic chemical, paper, metallurgical, pharmaceutical and other manufacturing industries is also Coal-based, traditional combustion boilers have a huge number of boilers in the above industries. These traditional combustion boilers generally have the disadvantages of low combustion efficiency, poor adaptability to coal types, and inability to effectively recover the physical waste heat of coal slag, resulting in energy...

AI Technical Summary

Problems solved by technology

[0002] Coal, as the main primary energy source in my country, accounts for 87% of the total energy resources. The national conditions of resources determine that my country's energy structure is dominated by coal combustion. The energy consumption of heating projects in a large number of domestic chemical, paper, metallurgical, pharmaceutical and other manufacturing industries is also Coal-based, traditional combustion boilers have a huge number of boilers in the above industries. These traditional combustion boilers generally have the disadvantages of low combustion efficiency, poor adaptability to coal types, and inability to effectively recover the physical waste heat of coal slag, resulting in energy consumption. A lot of waste and serious pollution of the environment

Due to the backwardness of the traditional cold slag discharge technology, less than 30% of the boilers equipped with cold slag equipment are currently in use. At the same time, some manufacturers are forced to withdraw after a period of use and introduce mature foreign products in time, which cannot be well adapted to domestic boilers. In the field of production and application, the exposed maintenance problems are more serious

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