Distillation process for reducing generated oil sludge and vibrating dust remover
A dust collector and dry distillation technology, which is applied in the field of dust removal devices, can solve the problems of reducing sludge generation, increasing post-processing burden and production efficiency, and increasing material moisture content, so as to reduce workload, improve equipment operation efficiency, and reduce the amount of occurrence. Effect
Inactive Publication Date: 2011-05-11
辽宁成大能源科技有限公司 +1
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Problems solved by technology
However, when the water washing method is used, the water content of the material will inevitably increase, thereby increasing the burden of post-processing and production efficiency.
Therefore, so far, there is no suitable method to remove the small particles and dust contained in the oil shale and reduce the formation of oil sludge in the dry distillation and refining industry at home and abroad.
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[0020] Process flow of the present invention such as figure 1 As shown, the figure mainly reflects the flow of oil shale dry distillation with less oil sludge. The difference from the original dry distillation refining process is that the process of "oil shale dust removal" is added before dry distillation. The part framed by the dotted line is newly added. The process sequence is: ore crushing and screening, oil shale dust removal, dry distillation, condensation recovery, and gas heating. Oil shale dedusting specifically includes the following steps: After the oil shale is crushed and screened by a crushing and screening device, the oil shale is sent to a vibrating dust collector by a belt conveyor for dedusting. Oil shale is fed from the upper part of the dust collector. The oil shale falls onto an inclined vibrating bed inside the dust collector. The oil shale jumps forward under the action of the vibrating bed, part of the oil shale falls from the sieve holes opened on...
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The invention relates to a process for reducing generated oil sludge in the process of oil shale distillation oil refining and a dust removing device for removing micro-dust adhering to the surface of oil shale or removing micro-particles mixed in the oil shale. The process sequentially realizes dust removal and distillation and comprises the following steps of: removing dust of the oil shale prior to the distillation in a retort; firstly, eliminating micro-dust adhering to the surface of the oil shale and micro oil shale particles smaller than a certain specification by using an airflow purge method to prevent the particles from entering an oil recovery system; and controlling the particle size of the micro-particles in the oil shale by using an airflow speed control method, wherein the airflow speed can be selected from 8m / S to 15m / S; micro-particles with the particle size being smaller than 1mm in the oil shale can be removed when the airflow speed reaches 15m / S. The invention can ensure that the oil sludge generated in the process of distillation oil refining is reduced by more than two-thirds and the oil recovery rate is increased by 5 to 7 percentage points. The invention is also suitable for the distillation oil refining of coal and the dust removal of other solid materials.
Description
technical field [0001] The invention relates to a technique for reducing oil sludge formation during oil shale dry distillation and refining process and a dust removal device for removing fine dust adhering to the surface of oil shale or removing tiny particles mixed in oil shale. Background technique [0002] A large amount of oil sludge produced in the oil recovery system of oil shale retorting and refining industry has always been a difficult problem for managers and technicians. While the retort furnace is retorting the oil shale, the tiny particles of oil shale mixed in the retort material or the fine dust adhering to the surface of the oil shale enter the oil recovery system together with the retort oil and gas. The particle diameter of this part of the dust is very small Small, mostly less than 0.3mm, after entering the oil recovery system along with dry distillation oil gas, after being treated by spray scrubber, cyclone dust collector, electrostatic precipitator and...
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Login to View More IPC IPC(8): C10B53/06C10B57/00B07B1/28
Inventor 吴启成郭华峰刘爽刘婵左君吴冠蕾
Owner 辽宁成大能源科技有限公司