Oilfield settling tank bottom mud discharge device

Abstract

The invention proposes a mud discharge device at the bottom of an oilfield settling tank. The tank body has a mud bearing floor and a mud collection chamber, the mud collection chamber is connected to the mud discharge pump, the center pipe of the settling tank is connected to the center support, the center support is connected to the driven gear, the driven gear is meshed with the driving gear, and the shaft of the driving gear is connected to the The deceleration motor is connected through a coupling, the deceleration motor is fixedly connected to the casing outside the tank top, the four groups of frameworks are fixedly connected radially around the shaft of the driven gear, and the bottom of the framework is connected to the mud scraper. Through the sludge removal system at the bottom of the tank, the sludge accumulation at the bottom of the tank is solved, the sludge is completely discharged without blind spots, and water resources are saved. The equipment is a mechanical structure with stable operation and reliable performance. The mechanical part of the settlement tank bottom has no welding structure. Bolt fastening connection mode, by setting the ultrasonic interface sensor, the tank bottom sludge automatic removal system can set the equipment start-up frequency, working time and other parameters through programming, and automatically control the sludge collection and discharge through the program timing to realize the full automation of the system run.

Description

Technical field: [0001] The invention relates to the field of oilfield water treatment equipment, in particular to a sludge discharge device at the bottom of an oilfield settling tank. Background technique: [0002] At present, the water content of oilfield output liquid is relatively high. These sewage containing sewage oil, suspended solids, salts, heavy metals and other harmful substances will inevitably produce a large amount of sewage sludge during the treatment process of the settling tank. Due to the sludge It cannot be effectively discharged from the sludge discharge pipe, the effective volume of the tank is reduced, and the residence time of oily sewage in the settlement area is shortened, which affects the separation effect of oily sewage. If there is mud at the mouth of the water pipe, when the sludge at the bottom reaches a certain height, the oily sludge will enter the filter system together with the settled water, which will increase the processing load of the ...

AI Technical Summary

Problems solved by technology

[0002] At present, the water content of oilfield output liquid is relatively high. These sewage containing sewage oil, suspended solids, salts, heavy metals and other harmful substances will inevitably produce a large amount of sewage sludge during the treatment process of the settling tank. Due to the sludge It cannot be effectively discharged from the sludge discharge pipe, the effective volume of the tank is reduced, and the residence time of oily sewage in the settlement area is shortened, which affects the separation effect of oily sewage. If there is mud at the mouth of the water pipe, when the sludge at the bottom reaches a certain height, the oily sludge will enter the filter system together with the settled water, which will increase the processing load of the filter tank accordingly, causing serious pollution of the filter material and shortening the filtration time. The use cycle of raw materials affects the normal operation of the sewage treatment system, deteriorates the quality of sewage treatment, and increases the cycle of manual cleaning. In this way, it not only affects normal production, but also wastes a lot of manpower and financial resources.

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