Cracking device

Abstract

The invention discloses a cracking device, and belongs to the field of cracking devices. The device comprises a feeding device, a cracking kettle, a reaction tower and a deslagging device, wherein the feeding device is provided with a preheating channel; the cracking kettle comprises a cracking kettle inner cylinder, a cracking kettle outer cylinder, a hot air inlet, a hot air outlet, a screw propeller, a feeding port and a slag hole, the cracking kettle inner cylinder is positioned in the cracking kettle outer cylinder, the cracking kettle inner cylinder and the cracking kettle outer cylinder form a jacket, the screw propeller runs through the cracking kettle inner cylinder, the hot air inlet and the hot air outlet are formed on the cracking kettle outer cylinder, and the feeding port is positioned at one end of the cracking kettle inner cylinder and is communicated with the cracking kettle inner cylinder and the feeding device; the deslagging device is positioned at the other end of the cracking kettle inner cylinder; and the reaction tower is arranged on the cracking kettle outer cylinder and is communicated with the cracking kettle inner cylinder. By adopting the cracking kettle with an internal rotation structure, the coking problem caused by overhigh local temperature is solved; and the cracking device has good sealing performance.

Description

technical field [0001] The invention relates to the field of cracking devices, in particular to a cracking device suitable for both waste rubber and waste plastics. Background technique [0002] Waste tires and waste plastics cause serious pollution to the environment, which is called black pollution or white pollution. In order to realize the recycling of waste tires and waste plastics, they need to be pyrolyzed. During the pyrolysis process of tires, the oil and gas are directly gasified from solids by heating to produce oil and gas, and then the oil and gas are cooled into a liquid state for recycling; during the cracking process of plastics, they are transformed from solids into molten latex liquids with strong viscosity after heating, and then undergo Vaporized and finally cooled to a liquid state for recycling. [0003] At present, the cracking treatment of waste rubber and waste plastics basically adopts static direct combustion cracking device and dynamic external ...

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that the prior art has at least the following problems: the static direct-fired cracking device has uneven heating and partial coking due to the static state of the material in the cracking tank, which in turn leads to oil discharge. Low efficiency and poor quality of oil products; dynamic external rotation cracking device, because the cracking kettle and internal materials rotate at the same time, it is difficult to solve the sealing problem of the cracking kettle, and there are certain safety hazards; Differences. At present, separate cracking equipment is used to crack the two, and there is no equipment that can be used for both at the same time.

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