Continuous cracking technology and equipment

Abstract

The invention relates to the field of petroleum, chemical industry and cracking and specifically provides a continuous cracking technology and equipment. The continuous cracking technology comprises processes of continuous feeding, cracking and discharging. The cracking mode is rolling cracking. A heat conduction box containing a material to be cracked rolls into a cracker to undergo rolling cracking in the cracker. The continuous cracking equipment comprises the cracker and the heat conduction box which rolls into the cracker and rolls in the cracker. A spinning band for driving the heat conduction box to roll is arranged inside the cracker. By the adoption of the technology, cracking efficiency can be greatly enhanced; self-cleaning function is realized; coking in the cracker and the heat conduction box is effectively avoided; efficiency of heat transfer and heat conduction is raised; energy sources are saved; service life of the equipment is greatly prolonged; contact area between a catalyst and the material to be cracked is increased; cracking efficiency is boosted; and continuous and stable operation of cracking is guaranteed.

Description

technical field [0001] The invention relates to the fields of petroleum, chemical industry and cracking, and specifically provides a continuous cracking process and equipment. Background technique [0002] As we all know, pyrolysis refers to the chemical process of converting a sample (mainly referring to high molecular polymer) into several other substances (mainly referring to low molecular compounds) only by heat energy. tires, waste rubber, etc.) have found a good solution, and provide a new solution for resource reduction and energy shortage improvement, which can provide a large number of basic industrial raw materials and energy sources, such as carbon black, iron wire, combustible fuel gas, etc. It is one of the means to solve various resource crises in the future. However, all the current cracking processes are to put the material to be cracked into the cracker for cracking. The material to be cracked is in direct contact with the cracker. Because the cracking temp...

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Problems solved by technology

However, all the current cracking processes are to put the material to be cracked into the cracker for cracking. The material to be cracked is in direct contact with the cracker. Because the cracking temperature is too high, it is easy to cause coking inside the equipment, shorten the service life, increase Production energy consumption, and generally the material needs to be crushed before cracking and then placed in a high-temperature environment for cracking, so that for unevenly broken materials, the cracking effect is greatly reduced due to the reduced heating effect, and it is extremely difficult for the material to enter the high-temperature environment directly. Coking and other situations are easy to occur, which greatly reduces the utilization rate of raw materials and has a great impact on the life of the cracking unit

In addition, in the existing cracking process, the materials to be cracked are distributed at the bottom of the cracking chamber, and the mixing of old and new raw materials during the cracking process will easily lead to coking inside the cracking chamber, resulting in poor heat transfer efficiency, and only the bottom area of ​​the cracking chamber is used. Low utilization rate, low processing capacity, and low utilization rate of heat energy

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