Classification and Characteristics of Electric Hydraulic Garbage Grab Buckets
Release time:
2018-09-10
The garbage grab has the following characteristics: - Harsh working environment: high temperature, high humidity, a lot of dust, and strong corrosive gases; - Heavy workload: average annual working time of about 8000 hours, high load rate, and frequent operation; - Difficult maintenance: the harsh working environment and various harmful gases from decaying garbage increase the difficulty of work; - High reliability requirements: if the crane malfunctions and cannot be promptly repaired, it will affect the feeding of the incinerator, leading to the shutdown of the waste incineration plant. Classification of garbage grabs - Main classification - According to the type of grab, it can be divided into mechanical grab type and hydraulic grab type cranes. Among them, the mechanical grab is a four-rope type.
The garbage grab has the following characteristics:
Harsh working environment: high temperature, high humidity, a lot of dust, and strong corrosive gases;
Heavy workload: average annual working time is about 8000 hours, high load rate,
Frequent work; difficult maintenance: the harsh working environment and various harmful gases from decaying garbage increase the difficulty of work;
High reliability requirements: if the crane fails and cannot be repaired in time, it will affect the feeding of the incinerator, causing the waste incineration plant to stop production.
Classification of garbage grabs
Main classification
According to the type of grab, it can be divided into mechanical grab type and hydraulic grab type cranes. Among them, the mechanical grab is a four-rope structure, and the size of the grabbing force depends on the self-weight of the grab and the specific gravity of the material being grabbed. Since the bulk density of garbage is relatively light, compared to hydraulic grabs, the four-rope grab has a smaller cutting volume, smaller grabbing force, and lower filling rate. Hydraulic grabs are divided into clamping type (two-piece grab teeth, also known as clam type) and claw type (multi-piece grab teeth, also known as plum blossom type, lotus type). Among them, the claw grab is widely used due to its large cutting volume, large grabbing force, high filling rate, and the hydraulic cylinder being located on the outside for easy maintenance. Its disadvantages are that it is easy to rotate when it falls on an inclined pile of materials, causing the steel wire rope and cables to tangle together. Additionally, it has a high cost and is expensive.
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