Chain type dirt cleaning machine

Abstract

The invention discloses a chain type dirt cleaning machine. A rack, a grid, two traction chains, at least one dirt cleaning scraper bucket, a drive mechanism and a flushing dirt unloading device are included. The grid is arranged on the rack and is vertically intercepted at the position of a canal. The two traction chains are arranged on the two opposite sides of the rack correspondingly. The twoends of the dirt cleaning scraper bucket are fixed to the two traction chains correspondingly. The dirt cleaning scraper bucket comprises a back face dirt baffle, wherein a plurality of front-back-penetrating flow passing grooves transversely arranged are formed in the back face dirt baffle. The drive mechanism is arranged on the rack and used for driving the two traction chains to move so that the dirt cleaning scraper bucket arranged on the two traction chains can be driven to move, and accordingly dirt intercepted by the grid is fished. The flushing dirt unloading device is arranged on therack. When the dirt cleaning scraper bucket is located at the dirt unloading position, the flushing dirt unloading device flushes the dirt cleaning scraper bucket through the multiple flow passing grooves in the back face dirt baffle.

Description

technical field [0001] The invention relates to the technical field of cleaning machines, in particular to a chain cleaning machine. Background technique [0002] According to the statistics of the Feedback Report on Important Events of Nuclear Power Operation in the World, since 2004, there have been more than 100 incidents related to the blockage of water intakes of nuclear power plants, of which nearly 80% of the incidents led to unit power reduction or shutdown, and more than 20% of the incidents were directly related to nuclear power plants. affect the security of the system. [0003] At present, the commonly used cleaning machine for the intake canal of nuclear power plants in China is a steel wire rope traction rake bucket cleaning machine, but this cleaning machine has the following disadvantages: First, this steel wire rope traction rake bucket cleaning machine has only one cleaning bucket. The cleaning rake bucket is pulled by the wire rope to complete the actions...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used cleaning machine for the intake canal of nuclear power plants in China is a steel wire rope traction rake bucket cleaning machine, but this cleaning machine has the following disadvantages: First, this steel wire rope traction rake bucket cleaning machine has only one cleaning bucket. The cleaning rake bucket is pulled by the wire rope to complete the actions of lifting, meshing with the grid and turning over. However, since this kind of wire rope traction bucket type cleaning machine has only one cleaning bucket, the cleaning process takes a long time. The cleaning process stops intermittently, the cleaning efficiency is low, and the water intake channel of the nuclear power plant is easily blocked; second, after the cleaning bucket of the cleaning machine leaves the grid during the lifting process, the dirt picked up is easy to fall into the water channel , reduce the cleaning efficiency; thirdly, the distance between the fine grids of the cleaning machine is too large (50mm), which cannot effectively filter and intercept sea organisms such as sea shrimps and jellyfish. The impact on nuclear safety reduces the reliability of the cold source of the nuclear power plant; and the fine grid of the cleaning machine is permanently pre-buried in the concrete wall of the intake channel, making it impossible to perform daily maintenance and cleaning, and is prone to corrosion or even blockage; in addition , the cleaning rake bucket is forced to unload sewage through the scraper, which is prone to the problem of dirty unloading and secondary dirt, and the scraper is easy to cause a large instantaneous impact load on the cleaning rake bucket, thus damaging the cleaning rake bucket, which is not conducive to the stable operation of the cleaning machine

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