Tar residue treatment method
A treatment method and tar residue technology, which is applied in the field of coal chemical industry, can solve the problems of high purchase cost and operation and maintenance cost of centrifugal equipment, insufficient mechanical centrifugal separation effect, and increased production cost of extraction agent, so as to reduce tar residue treatment Effects of equipment and materials, saving processing costs, and avoiding waste of resources
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Embodiment 1
[0029] The present embodiment provides a tar residue treatment method, such as figure 1 shown, it includes:
[0030] S1, primary separation treatment: tar residue is placed in a high temperature alkaline liquid environment, stirring and separation obtains primary separation tar residue and liquid product, and the liquid product is carried out to stand for stratification, and separate primary separation tar and alkaline liquid;
[0031] S2, secondary separation treatment: carry out pressure filtration to the described primary separation tar residue, obtain secondary separation tar residue and secondary separation tar;
[0032] S3, tertiary separation treatment: carry out high-temperature dry distillation on the secondary separation tar residue to obtain crude gas and coke powder.
[0033] It should be noted that in the high temperature alkaline liquid environment, the viscosity of the tar residue is reduced, and the coal tar in it is easier to separate. At the same time, stirr...
Embodiment 2
[0044] This embodiment provides a tar residue treatment system, such as image 3 As shown, it can be used to realize the tar residue treatment method in the first embodiment. The system of this embodiment includes a high temperature alkaline liquid environment unit 10, a stirring device 20, a slag extraction device 30, a static layering device, a filter press device 40 and a first a carbonization device 50;
[0045] Both the stirring device 20 and the slag extraction device 30 are arranged in the high temperature alkaline liquid environment unit 10, the liquid outlet of the high temperature alkaline liquid environment unit 10 is communicated with the liquid inlet of the static layering device, and the slag extraction device 30 has a liquid outlet. The discharge port 302 communicates with the feed port 401 of the filter press device 40 , and the slag discharge port 402 of the filter press device 40 communicates with the feed port 501 of the first carbonization device 50 .
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Embodiment 3
[0064] The present embodiment provides a tar residue treatment method, such as Figure 4 As shown, it is basically the same as a tar residue treatment method described in Example 1, which will not be repeated here. The difference is: in the initial separation treatment step, the temperature of the furnace gas in the traditional coking route is increased, and then the The collected high-temperature tar residue mixed with ammonia water after spray cooling with ammonia water is directly stirred as the tar residue placed in the high-temperature alkaline liquid environment, and the tar residue and the tar-aqueous ammonia mixture are separated to obtain the first separation. The tar-ammonia-water mixture is allowed to stand for stratification, and the primary separation tar and ammonia-water are separated.
[0065] It should be noted that the temperature of the outgoing gas in the traditional coking route can be increased by increasing the flow rate of the return gas and air. The or...
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