Shiyan carries out special inspections for heavy metal pollution companies

Drying equipment

In order to effectively strengthen the supervision of heavy metal pollution companies and eliminate hidden dangers in environmental safety, the Shiyan City Environmental Protection Bureau of Hubei Province began to carry out special inspections of companies involving heavy metal pollution in the city. The inspection contents mainly include the implementation of environmental impact assessments for corporate construction projects, environmental protection “three simultaneous” systems, and the discharge of pollutants up to standard; the establishment of enterprise emergency environmental emergency plans and drills; the implementation of mandatory cleaner production audits for enterprises; corporate waste slag yards , Tailings pond environmental pollution hidden trouble investigation; Enterprise contains heavy metal solid waste storage and transportation implementation of relevant laws and regulations; Urban, enterprise sewage treatment plant sludge and landfill leachate heavy metal discharge and harmless disposal situation Wait for 6 aspects.

It is reported that this special inspection will be combined with the investigation of the pollution sources in Shiyan City, the special environmental protection actions in recent years, and the daily environmental supervision. It will continue from the beginning of July to the end of August and be divided into three stages: self-inspection, inspection, and summary. The enterprises that polled the first type of pollutants conducted a centralized clearing and inspection of the 44 companies involving the city’s list of state and provincial key enterprises.

Nut With Trunnion

The ball screw drive is an assembly that converts rotary motion to linear motion (or vice versa). It consists of a ball screw and a ball nut packaged as an assembly with recirculating balls. The interface between the ball screw and the nut is made by balls which roll in matching ball forms. With rolling elements, the ball screw drive has a low friction coefficient (typically up to 98%). The forces transmitted are distributed over a large number of balls, giving a low relative load per ball comparatively.

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