Patent ID: 8728282

Claim:
An industrial continuous cracking device of plastics, comprising: an outer cylinder having an outer cylinder cavity for receiving a solid state heat carrier and an oil-gas outlet; an internal cylinder supported in said outer cylinder, wherein two ends of said internal cylinder are coupled with said outer cylinder, wherein said internal cylinder has an internal cylinder cavity communicating with said outer cylinder cavity; a heating mechanism supported in said internal cylinder for heating said solid state heat carrier when said solid state heat carrier enters into said internal cylinder; an outer cylinder helical ribbon provided along said inner wall of said outer cylinder to define an outer cylinder feeding direction for feeding a mixture of raw material and said solid state heat carrier at said outer cylinder feeding direction when said raw material is fed into said outer cylinder; a transport mechanism provided in said internal cylinder to define an internal cylinder feeding direction which is opposite to said outer cylinder feeding direction; an import mechanism which is located between said outer cylinder and said internal cylinder and is provided at an inlet side of said internal cylinder, wherein said import mechanism is arranged for importing said solid state heat carrier from said outer cylinder into said internal cylinder when said solid state heat carrier is separated after cracking process; and a separating mechanism provided in said outer cylinder for separating said solid state heat carrier and a solid cracking product after cracking process, wherein said separating mechanism comprises a screen mesh having a tubular shape provided at said inlet side of said internal cylinder and a baffle provided at an outer side of said screen mesh, wherein said outer cylinder helical ribbon is located between said inner wall of said outer cylinder and said screen mesh.