Solid-liquid separation device for garbage collected by road cleaning sweeper truck, and sewage treatment method

Abstract

The invention discloses a solid-liquid separation device for garbage collected by a road cleaning sweeper truck, and a garbage sewage treatment method. The solid-liquid separation device comprises a dumping pool, a filter sieve and a lifting screw conveyor; the lifting screw conveyor is in a long-cylinder shape and is obliquely arranged in the dumping pool, and the lower end of the lifting screw conveyor is arranged on the lower middle part of the dumping pool; the filter sieve is overall in a funnel shape, a falling opening is formed in the lower end of the filter sieve, and a filter hole isformed in the funnel wall of the filter sieve and used for filtering water; and an upward feeding inlet is formed in the lower end of the lifting screw conveyor, the falling opening in the lower end of the filter sieve is in butt joint with the feeding inlet of the lifting screw conveyor, the dumping pool is divided into an upper layer and a lower layer through the lifting screw conveyor and the filter sieve, and a drain opening is formed in the lower end of the dumping pool to be connected with a sewage treatment system. The garbage containing sewage is subjected to solid-liquid separation through the solid-liquid separation device, the solid garbage is boxed, sewage is treated to meet the standard and then is utilized cyclically, the garbage collecting amount is increased, and the garbage transferring transporting cost is lowered; and the solid-liquid separation device is simple in structure, and solid-liquid separation treatment is high in efficiency, easy to operate and easy to maintain.

Description

technical field [0001] The invention relates to the technical field of garbage treatment, in particular to equipment and a treatment method for solid and liquid separation and water treatment of garbage collected by road washing and sweeping vehicles. Background technique [0002] At present, the well-known road sweepers are divided into dry garbage sweepers and garbage washing sweepers (spray and atomize when cleaning garbage), and dry garbage sweepers tend to generate dust during cleaning operations, causing serious damage to the environment. Damage, such as: raising dust, reducing visibility, and causing dust damage to the human body; because the sweeper will spray water on the road surface, it will not cause dust, but the garbage collection of the sweeper is very troublesome. The volume and carrying capacity of the sweeper are limited, and it is impossible to go to a landfill far away from the city for dumping of garbage. If it is temporarily stored in a certain place fo...

AI Technical Summary

Problems solved by technology

[0002] At present, the well-known road sweepers are divided into dry garbage sweepers and garbage washing sweepers (spray and atomize when cleaning garbage), and dry garbage sweepers tend to generate dust during cleaning operations, causing serious damage to the environment. Damage, such as: raising dust, reducing visibility, and causing dust damage to the human body; because the sweeper will spray water on the road surface, it will not cause dust, but the garbage collection of the sweeper is very troublesome. The volume and carrying capacity of the sweeper are limited, and it is impossible to go to a landfill far away from the city for dumping of garbage. If it is temporarily stored in a certain place for later processing, the garbage contained in the sweeper (convenience bags, leaves, paper pins, etc.) ) contains sewage, which will cause secondary pollution to the surrounding environment. The sewage and leachate in the garbage pollute the surrounding ground and groundwater sources; since the proportion of solid liquid in the cleaning vehicle can reach more than 75%, it is easy to attract mosquitoes in spring, summer and autumn flies, and the smell seriously pollutes the surrounding environment, and other equipment (such as: loaders, dump trucks, cleaning vehicles, sewage suction vehicles, etc.) are required for cleaning and transportation. On the way, sewage and leachate pollute the road surface from time to time

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