Novel efficient oil sand crushing machine

Abstract

The invention relates to a novel efficient oil sand crushing machine. The novel efficient oil sand crushing machine comprises a separation propelling plant and is characterized in that the separationpropelling plant is used for screening oil sand, a first discharge outlet is arranged below the separation propelling plant, oil sand meeting requirements falls through the gaps and is discharged through the first discharge outlet, and the oil sand which does not meet the requirements enters a primary crushing device; the primary crushing device is close to the outlet end of the separation propelling plant and used for further crushing the oil sand from the separation propelling plant to obtain roughly crushed oil sand, a second discharge outlet is arranged below the separation propelling plant, and the roughly crushed oil sand flows into a secondary crushing device through the second discharge outlet; the secondary crushing device is located below the primary crushing device, a third discharge outlet is arranged below the secondary crushing device, the roughly crushed oil sand is crushed by the secondary crushing device and discharged from the third discharge outlet, each of the primary crushing device and the secondary crushing device comprises two rollers which rotate in opposite directions and crushing teeth arranged on the rollers, and the crushing teeth are arranged around the surfaces of the rollers.

Description

technical field [0001] The invention relates to oil sand processing and crushing equipment in an oil field, in particular to a novel high-efficiency oil sand crusher in oil sand processing. Background technique [0002] With the increasing demand for oil and gas resources, the exploration and development of conventional oil and gas resources in the world has become more and more difficult. Under this general trend, in order to meet the requirements of sustainable economic and social development, it is urgent to develop and utilize unconventional oil and gas resources, among which the development of oil sands is the most important. Oil sands development generally includes the following three parts, namely oil sands mining, oil sands treatment, and oil sands refining. Among them, the oil sand crushing part in the oil sand treatment process is particularly important. [0003] At present, there are many kinds of crushers in the world, and the crushers can be divided into two c...

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Problems solved by technology

But it is expensive and difficult to maintain

[0007] From the introduction of the above crushers, it can be seen that the crushing principle of the other four types of crushers except the roller crusher is crushing by striking force, and the effect of crushing oil sand by striking force alone is not good, and as the crusher The temperature in the crushing cavity is constantly increasing, and the viscosity of the oil sand increases with the increase of temperature. The increase in the viscosity of the oil sand may cause the newly broken oil sand to agglomerate again, making the oil sand crushing invalid and more serious. It will cause blockage of the crushing cavity and discharge port, increase the power of the crusher, and more seriously cause the machine to stop or even be damaged.

[0008] In addition, in addition to the problems caused by the viscosity of oil sands, the size of oil sands mined on site is generally too large, and the subsequent oil sand refining requires oil sands with a small particle size (less than 1cm), so the crushing ratio of oil sands before and after crushing is very high. Large, domestic and foreign roller crushers generally cannot meet the requirements, and domestically produced roller crushers cannot simultaneously achieve the two functions of crushing and grading

[0009] From the above analysis, it can be seen that neither the roller crusher nor the other four types of crushers can effectively crush oil sands.

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