Crushing and sieving machine for building waste

Abstract

The invention relates to a crushing and sieving machine for building waste. The machine comprises a magnetic separator, wherein a feeding hole is formed in the upper part of the magnetic separator, afeeding cylinder is arranged on the right side of the magnetic separator, a crushing and feeding mechanism is arranged in the feeding cylinder, a material inlet is formed in the lower part of the feeding cylinder, a first crushing chamber is formed below the material inlet, a group of crushing wheels A are arranged in the first crushing chamber, and a first-stage sieving net is arranged below thecrushing wheels A; a second crushing chamber is formed below the first crushing chamber, and a group of crushing wheels B are arranged in the second crushing chamber; adjusting rails are formed in thefront and rear sides of the outer walls of the first crushing chamber and the second crushing chamber respectively corresponding to the crushing wheels A and the crushing wheels B, and a second-stagesieving net is arranged below the crushing wheel B; and dust branched pipes are arranged below the first-stage sieving net and the second-stage sieving net, dust suction pumps are arranged on the dust branched pipes, the dust branched pipes are commonly connected with a dust pipe, and the dust pipe is connected with a dust chamber. The crushing and sieving machine has the advantages of simplicityin operation, high crushing efficiency and reasonability in use.

Description

technical field [0001] The invention belongs to the technical field of shredders, and in particular relates to a construction waste shredding and screening machine. Background technique [0002] Now that the city is constantly expanding, there will be many problems, such as a large amount of construction waste will be generated, and various wastes will inevitably appear during the demolition of construction projects, including the construction process. Most of them are mixed together, and some Iron nails and short steel bars can also be reused. They are mixed in construction waste, and it is difficult to sort them out, and it will take a long time. Under normal circumstances, these usable wastes will be crushed together with general waste, which is not only easy to damage and crush At the same time, it will cause a lot of waste of resources and indirectly increase the construction cost. A large amount of dust will be generated during the pulverization process of the pulveriz...

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Problems solved by technology

[0002] Now that the city is constantly expanding, there will be many problems, such as a large amount of construction waste will be generated, and various wastes will inevitably appear during the demolition of construction projects, including the construction process. Most of them are mixed together, and some Iron nails and short steel bars can also be reused. They are mixed in construction waste, and it is difficult to sort them out, and it will take a long time. Under normal circumstances, these usable wastes will be crushed together with general waste, which is not only easy to damage and crush At the same time, it will cause a lot of waste of resources and indirectly increase the construction cost. A large amount of dust will be generated during the pulverization process of the pulverizer. If the dust is not removed, it will not only pollute the environment, but also cause bodily harm to the operators; therefore, Need a construction waste crushing and screening machine

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