Petroleum sand filter

Abstract

The invention relates to the field of petroleum filtering equipment, in particular to a petroleum sand filter. The filter comprises a base, a driving mechanism, a filtering mechanism and a residue treatment mechanism; the filtering mechanism comprises a shell, a first filtering assembly, a second filtering assembly and a residue discharging assembly; the shell is fixedly arranged at the upper endof the base; the first filtering assembly is arranged outside the second filtering assembly in a sleeving mode; the first filtering assembly and the second filtering assembly are both arranged in theshell; the residue discharging assembly is arranged at the tail ends of the first filtering assembly and the second filtering assembly; the residue treatment mechanism comprises a conveying assembly,an extrusion assembly and an oil scraping assembly; the extrusion assembly is internally arranged in the middle of the conveying assembly; the oil scraping assembly is arranged beside the extrusion assembly; and an oil conveying pipeline is arranged at the bottom of the shell. During use, residues can be discharged while filtering is conducted through cooperative work of the first filtering assembly, the second filtering assembly and the residue discharging assembly, the maintenance frequency of equipment can be reduced, and blockage caused by residue accumulation can be avoided.

Description

technical field [0001] The invention relates to the field of petroleum filtering equipment, in particular to a petroleum sand filter. Background technique [0002] When the oil is just extracted, it will contain a lot of sand and gravel, so it is necessary to filter the oil to facilitate the subsequent processing of the oil. [0003] Chinese Patent No. CN105056619B discloses a sand filter for oil, including an upper frame, a lower frame, a first filter device, a second filter device, a rotating device and an oil outlet device, and the upper frame is provided with a first sealing ring , the lower frame body is provided with a second sealing ring and a first fixing plate, the first filter device includes a first filter screen, a first connecting rod, a first cross bar, a first vertical bar, a triangular block and fasteners, the first The second filtering device includes a fixed block, a second filter screen, a sponge block, a third filter screen and a second vertical rod, and...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned two patents can filter the oil to remove impurities such as sand and stone in the oil, the above-mentioned two patents also have the following disadvantages in use. The first, the above-mentioned two patents are mainly used when using The filter screen filters the oil, but the above two patents do not have equipment that can remove the impurities at the filter screen in time when they are working. Therefore, after a long time of use, the filtered impurities will block the fi

Images