Drying calcining treatment system of drilling well waste mud

Abstract

The invention discloses a drying calcining treatment system of drilling well waste mud. The system comprises a rotary type drying calcining device, a rotary driving mechanism and a rotary support mechanism, wherein the rotary type drying calcining device passes through the rotary driving mechanism and the rotary support mechanism, the drying end of the rotary type drying calcining device is provided with a raw material feeding system and a drying heat-supplying device, the calcining end of the rotary type drying calcining device is provided with a pulverized coal burner and a screw conveyor, the rotary type drying calcining device is inclined, the drying end is higher than the calcining end, the gas outlet of the drying heat-supplying device is connected with the hot wind inlet of the rotary type drying calcining device, the burning end of the pulverized coal burner extends into the calcining end, and the middle part of the rotary type drying calcining device is connected with a dust removal purification system. The system is quick, high efficient, convenient and low dissipative, the treatment of the drilling well waste mud does not need the secondary treatment, the treated ultimate products can be used as recycling materials and the pollution problem of the drilling well waste mud is thoroughly solved.

Description

technical field [0001] The invention belongs to the technical field of drilling waste mud treatment, and in particular relates to a drying and calcining treatment system for drilling waste mud. Background technique [0002] Oil and gas field drilling waste mud, as the main pollution source in drilling production, comes from the drilling process of oil and gas exploration and development. colloidal suspension. The main components that are harmful to the environment are hydrocarbons, salts, various polymers, lignosulfonates, certain metal ions (mercury, copper, arsenic, chromium, zinc, lead) and impurities in barite. It will pollute the soil, surface and groundwater, and directly or indirectly cause harm to animals, plants and human health. [0003] Due to the complex composition of drilling waste mud, the impact on the environment is also multifaceted. Chromium, lead, arsenic, cadmium, benzene, chloride and other components in waste drilling mud are the most harmful to huma...

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Problems solved by technology

[0009] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, and to provide a drying and calcination treatment system for waste drilling mud, which can achieve fast, efficient, convenient, low consumption, and no need for secondary treatment to realize the waste drilling mud. At the same time, the harmful and toxic components in the waste mud are removed, and the final product after treatment can be used as a recycled material, which effectively solves the high cost, large volume and failure to fundamentally eliminate the environmental pollution caused by the waste drilling mud in the prior art. Pollution problem, completely solve the pollution problem of oil and gas field drilling waste mud

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