A production device for manufacturing a product in the form of a sheet or a block, including: an initial agitator (1), a primary conveyor belt (2) and a mixing agitator (3); each of initial agitators (1) is configured with the primary conveyor belt (2), one or more stones or a stone-like granular material having a selected particle size and a binder are initially mixed in the initial agitator (1) and then an initial mixture is obtained; the mixing agitator (3) includes a rotating container for undertaking a material; the initial mixture is conveyed to the mixing agitator (3) through the primary conveyor belt (2); more than one initial agitator and matched primary conveyor belts thereof are disposed around the mixing agitator (3) at intervals.

A method for manufacturing a product in the form of a sheet or a block, including: preparing an initial mixture including one or more stones or a stone-like granular material having a selected particle size and a binder; depositing a layer of the initial mixture having a predetermined thickness onto a surface of a conveyor belt; performing prepressing and finally obtaining a roughly formed material; systematically depositing layers of initial mixtures onto surface of the conveyor belt in parallel, making each layer not superposed in a direction perpendicular to surface of the conveyor belt, but arranged in sequence in a direction of width of the conveyor belt to form a multi-component or composite mixture structure; conveyor belt conveys the multi-component or composite mixture into a rotated container or support member; after discharged from the rotated container or support member, a final mixture is conveyed to perform subsequent pre-compression and hardening.

A method of operating a concrete batching plant includes loading aggregates into an aggregate storage bin divided into compartments from the ground level by wheel loader, discharging the material from storage bin through batching gates fitted into a weighing hopper, hydraulically lifting the aggregates after being weighed in the weighing hopper, conveying cement through a screw conveyor into a cement weigher and discharging the same into a mixer, mixing and compacting the aggregates for a pre-determined time, discharging the mixed and compacted concrete into a concrete carrying hopper, transporting the concrete carrying hopper to a desired height, and loading the concrete into mobile transit mixer or concrete pump, based on the site requirement.

A mixer vehicle system includes a mixer vehicle and an autonomous control system. The mixer vehicle includes a chassis and a vehicle body. The vehicle body includes a plurality of subcomponents including a cabin, a mixing drum, a charge hopper, and a chute. The autonomous control system is configured to automate an operation of the mixer vehicle. The autonomous control system includes a sensor and a controller. The sensor is configured to detect an event and generate a signal. The controller is configured to receive the signal and generate an output. The output includes the operation of the mixer vehicle. The operation of the mixer vehicle includes at least one of: (i) moving at least one of the plurality of subcomponents to a desired position; (ii) activating or deactivating at least one mode of operation; and (iii) providing an alert to an operator of the mixer vehicle.

A bulk storage plant for providing cement mixtures oil well construction is disclosed. The bulk storage plant includes bulk storage sources, an additive station, a weigh batcher, and a tumble blender. The bulk storage sources are adapted to contain cement ingredients. The additive station is adapted to provide an additive for adjusting cement properties. The weigh batcher is connected to the bulk storage silos and the additive station. The weigh batcher is adapted to receive the cement ingredients from the bulk storage sources and the additive from the additive station. The tumble blender is connected to the weigh batcher and is adapted to receive the cement ingredients and the additive from the weigh batcher. The tumble blender is adapted to blend the ingredients and provide the blended ingredients to one of a temporary storage silo and a storage vessel for transport to the oil well site.

A substance feeding device includes: a buffer member, a conveying assembly, a weight meter, and a control assembly. The buffer member is configured to store a substance; one end of the conveying assembly is connected with the buffer member; the conveying assembly has at least two conveying ports; the conveying port is configured to connect with a target device; the weight meter is connected with the buffer member and is configured to detect a weight of the substance in the buffer member; each conveying port is provided with one control assembly; the control assembly is configured to control communication and cutoff of a pipeline between the conveying port and the corresponding target device; the control assembly includes a back pressure valve; and the back pressure valve is disposed on the conveying port and capable of being connected with the target device.