4 results about "Mining industry" patented technology

The invention discloses a single-derrick tower-type twin-well pumping unit. A passive drum and a drum-type speed reducer are arranged on a rack beam; a rack base is fixed on a concrete foundation; an open belt is connected with a belt clip, a steel rope, a polish rod clamp, a rope hanger, a sucker rod and an oil-well pump; the other end of the open belt sequentially passes through the passive drum, the drum-type speed reducer and the passive drum from the upper part of a rack and then is connected with another belt clip, another steel rope, another polish rod clamp, another rope hanger, another sucker rod and another oil-well pump through bolts; a motor is connected with the drum-type speed reducer through a shaft coupler; and a brake is connected on the shaft coupler. Compared with a double-derrick twin-well pumping unit with a below-arranged drive system, a set of derrick is saved, about 10 tons of steels are saved, 60% of transmission lines are saved, 20 meters of belts are saved, and the efficiency is improved by 10%. Compared with two oil wells with two single-well pumping units, the manufacturing cost is reduced by 50%, and the efficiency is improved by 20%. Therefore, the single-derrick tower-type twin-well pumping unit can be widely applied to oilfield mining industries.

The invention relates to the field of operating, monitoring and controlling mills of the mining industry. It specifically relates to a system and a method for in-line determination of the characteristics of worn balls and pieces thereof, which have been ejected from a semi-autogenous mineral grinding (SAG) mill to the external classifiers.

The invention provides a crushing device for mining. The crushing device comprises a base, a lifting arm, an impact arm, a hydraulic driving device and an impact drill rod; the lifting arm is connected with the base and used for controlling the height of the crushing device; the impact arm is movably connected with the lifting arm; the impact arm is internally provided with the hydraulic driving device; hydraulic driving device is used for driving the impact drill rod to perform reciprocating impact movement; and the impact drill rod is used for reciprocating impact on the surface of a pit andseparating ore from the surface of the pit. The movement and work of the impact drill rod are controlled by the base, the lifting arm, the impact arm and the hydraulic driving device, the impact drill rod is driven by the hydraulic driving device to move in a reciprocating impact mode and impact the surface of the pit, and finally the ore is impacted off from the surface of the pit. The crushingdevice can be effectively used in the mining industry, the ore mining is carried out efficiently and safely, and great practicability is achieved. The invention further provides a mining machine.

The invention provides a nylon enhanced rubber conveyer belt, comprising the following components in parts by weight: 60-90 parts of rubber, 10-50 parts of nylon, 2-5 parts of vulcanizator, 1-8 parts of promoter, 20-180 parts of filler, 10-20 parts of softener and 1-1.5 parts of antiager. The rubber and the nylon are used as base materials, are added with a certain amount of compounding agent and paster to change the physical and mechanical properties of the rubber and the nylon, and finally are prepared into the product in the invention by a special production process, thus solving the deficiencies of poor wear resistance, short application life, complicated replacement and the like of the existing conveyer belt. The invention has bright appearance, superior oil-resistant, ageing resistant, wear resistant, acid-base resistant and scratch resistant properties as compared with the pure rubber products and wool materials, and excellent physical, chemical and mechanical prosperities. The invention can be applicable to the posttreatment production line of textile machinery, is suitable for various fields requiring heat resistant and wear resistant production, and can be widely used in high temperature conveying occasions such as textile industry, cremation industry, mining industry, metallurgical chemical industry and the like.