Measurement of the mass of the cargo directly in the body of a heavy-duty dump truck is carried out by the built-in weighing device by gas pressure in the cylinders of the pneumohydraulic suspension.

Increasing the accuracy of measuring the mass of cargo in the body of a stationary dump truck is possible by reducing the error of constructive nature due to the forces of dry friction of the contacting surfaces of the suspension cylinders.

The main indicator characterizing the work of a heavy-duty dump truck BelAZ-549 is the mass of transported cargo. Automatic accounting of this indicator can be performed with the help of the built-in device both in static and dynamic modes ...

At automation of operational accounting of quarry motor transport work with the help of built-in weighing devices there is a necessity of accumulation of information about the mass of the transported cargo for a working shift. This task can be solved by means of digital totalizers ...

In the development of mineral deposits by open-pit method for transportation of rock mass is the most promising road transport, and, in particular, heavy-duty dump trucks of the Belarusian Automobile Plant BelAZ-540, BelAZ-548A and BelAZ-549 with carrying capacity of 27, 40 and 75 tons, respectively. Improving the efficiency of the use of dump trucks is hindered by the imperfection of the existing operational control of the mass of the transported cargo and the lack of normalization of loading dump trucks at excavators ...

At open-pit mining method for transportation of rock mass at open pits of any productivity in recent years road transport is widely used, in particular, heavy-duty dump trucks. Dump trucks BelAZ-540, BelAZ-548A with carrying capacity, respectively, 27 and 40 tons are operated in conjunction with powerful excavators, have great maneuverability, good operational and speed qualities, low requirement for the profile of roads and 2-3 times increase the productivity of transport work in quarries. ...

Ensuring safety of movement of heavy duty open pit dump trucks in poor visibility conditions is a very urgent task, especially in the severe conditions of the Far North. Its solution will increase not only the accident free operation of dump trucks, but also their productivity. For example, at the open pit of the Central mine of the Apatit Combine, where BelAZ dump trucks are used, the number of days with fogs, snowfalls and blizzards reaches 300 per year. According to the current regulations, the movement of dump trucks is prohibited when visibility is less than 20 m. At visibility of 20 50 m, despite a sharp reduction in speed, the movement of dump trucks is not safe.

One of the first stages in the synthesis of automatic control systems (ACS) is the preparation of the structural block diagram. Unlike the subsequent stages (mathematical synthesis of optimal dynamic characteristics, determination of dynamic characteristics of corrective devices, etc.), the method of synthesizing the structural block diagram is poorly developed. We are not aware of any engineering method for obtaining the structural block diagram of an ACS to be designed, even if it is an existing but not yet automated object.

Control of phosphoric anhydride P205 content in phosphate rock is one of the most important stages of the technological process of phosphate flour production. At present, the determination of P₂O₅ content in production conditions is mainly carried out by methods of chemical analysis (weight, photocolorimetric and ionic), involving the transfer of phosphorite sample into solution and subsequent determination of phosphorus content in terms of P₂O₅.

Complex automation of the mine ventilation system will increase the safety of mining operations and provide normal ventilation and gas regimes, which is especially important for mines of Category III and supercategory. One of the primary stages of solving this problem is to ensure continuous monitoring of methane content in the mine atmosphere. Stationary automatic methane analyzer of AMT-2 type provides continuous measurement of methane concentration at the sensor installation point, preliminary and emergency tele-signaling to the dispatcher (at 0.7 and 1% of methane), automatic power cut-off at emergency methane concentration.