1843results about "Mixing operation plant" patented technology

A vehicle fleet management information system for identification of location and direction of movement of each vehicle in the fleet in real-time and automatic communication directly with management offices to report its location and heading, and status of predetermined events in which the vehicle may be engaged. One example is a cement delivery truck which monitors location, speed and status information such as start pour, pouring, end pour, wash and leave job, and automatically transmits this information with a management office without requiring affirmative action by the vehicle operator.

Embodiments relate to a hydraulic fracturing system that includes a blender unit. The system includes an auger and hopper assembly to receive proppant from a proppant source and feed the proppant to the blender unit for mixing with a fluid. A first power source is used to power the blender unit in order to mix the proppant with the fluid and prepare a fracturing slurry. A second power source independently powers the auger and hopper assembly in order to align the hopper of the auger and hopper assembly with a proppant feed from the proppant source. Thus, the auger and hopper assembly can be stowed or deployed without use of the first power source, which is the main power supply to the blender unit.

A volumetric concrete mixer includes a monitoring and control system that assures a uniform amount of cement per unit of aggregate. A processor is in communication to receive an input of a weight of a cement bin from a cement bin load cell and in communication to receive an input of a number of rotations of a conveyor from an aggregate sensor. The processor is adapted to determine a rate of change of weight of the cement bin over a set number of rotations of the conveyor, and to instruct the cement dispenser to adjust the cement dispenser speed to maintain a constant rate of cement being dispensed from the dispenser bin to the mixing area per the set number of rotations of the conveyor.

The invention discloses a dry mortar mixing station, which consists of a sand conveying system, a drying system, a dust removing system, a dry sand hoisting-sieving and storing system, a powder storage system, a mixture metering and conveying system, a stirring system, and a finished product storing, conveying and packaging system. The dry mortar mixing station has good metering precision and efficient production capability; and the produced dry mixed mortar has superior construction performance and quality, is environment-friendly, can meet various construction works, and can adapt to different requirements of various novel building materials on mortar.

A low profile particulate mixing plant is described. The plant is suitable for discharging the components of a particulate mixture. The plant includes a pair of storage receptacles located side-by-side. Each of the receptacles has a discharge adjacent an underside thereof to transfer a component of the particulate material mix within each receptacle to a respective conveyor at a height adjacent to ground level. The conveyor elevates the components from the discharges to a mixing station spaced from the receptacles. The plant is suitable for use as a concrete mixing plant.

Thermal processing of recycled asphalt pavement (RAP), having up to approximately 8% or more moisture content, dries and preheats the material to enhance efficient recycling in a hot mix asphalt plant. A combustor and heat exchanger reheat circulating hot oil, which with hot gas, moves through a hollow auger and around the RAP counter to the flow of RAP. Moisture is forced outward from within the particles and is flashed away by the hot exhaust gas. A similar secondary heater heats the RAP to just below asphalt coking temperature before the hot dry RAP is added as an aggregate to the hot mix asphalt plant.

Disclosed is a multifunctional multi-tap (concent) of intercepting a stand-by electric power and a control method employing the same which prevent big fire generated by leakage current by performing an interlocking control and a single-acting control (separate control) in accordance with subordination of respective appliances using a illumination sensor or a body-detecting sensor. The multifunctional multi-tap (concent) detects a signal according, to an illuminance and a motion of body around respective lead-in holes activated as an interlocking control and a single-acting control using an illumination sensor or a body-detecting sensor, discriminates the detected signal by a controller, and controls the respective appliances as a stand-by state or a power-saving state in accordance with the interlocking control or the single-acting control.

A pre-mixer agglomerator and method of pre-mixing batching ingredients used to produce concrete mixes is disclosed. Specifically, this invention involves a pre-mix system which blends the wetting agents and the cementitious ingredients in relation to each other at any selected ratio in an adjustable and repeatable manner. The pre-mixer is a twin screw, preferably counter-rotating, pre-mixer agglomerator unit for pre-mixing these materials prior to combining them with aggregates in a drum of a transit mixer truck or other final mixing vessel.

The invention relates to drying-free dry-mixed mortar complete equipment, comprising a charging belt conveyor (1), a crusher sand making machine (2), a discharging bucket elevator (3), a circulating vibration screen (4), a screening bucket elevator (9), a vibrating screen classifier (11), a classified sand warehouse (12), a return bucket elevator (5), a stone powder dust collector (6), a stone powder temporary storage bin (12), a stone powder delivery tank (8), a stone powder additive bin (14), a cement bin (15), a sand dispensing and metering device (16), an additive dispensing and metering device (17), a cement dispensing and metering device (18), a metering material spiral conveyer (19), a metering material bucket elevator (20), a metering material intermediate transition bin (21), an additive storage silo (22), an accurate dispensing and metering device (23), a mixer (24), a finished product material transition bin (25), a bulk head (27), a wrapping finished product bin (28), a sack filler (29), a package belt conveyer (30), a finished product material storage spiral conveyer (31), a finished product material storage bucket elevator (32), a dissociation-proof transport unloading device (33) and a finished product material bulk storage silo (34). The invention can omit drying and realizes drying-free effect.

An apparatus for producing high density slurry and paste backfills for use, for example, in mining operations. The high density slurry or paste is produced from a mill tailings mixture in a silo which includes a percolation and decant apparatuses for percolating water out of the mill tailings mixture and for decanting clarified water from atop the settled tailings. While settling occurs, air is introduced from the bottom of the silo to agitate the mixture to ensure substantially homogeneous settlement of the solids. Once settled, the resultant high density slurry or paste is fluidized by air in order to give the paste more readily flowable characteristics.

A Rotary thermal processor for particulate materials has a rotating drum and a rotating hollow auger. A stationary cylindrical oven with stationary coils surrounds the rotating drum. Hot gas heats a first part of the oven, coil and drum. A rotating hollow auger is heated with hot fluid from the coils. Oven exhaust sweeps evaporated and volatized components of the treated materials to separators and a thermal oxidizer. Cleaned gas from the thermal oxidizer heats a second part of the oven coil and drum and exits a stack. The rotating drum and auger lifts and turns the treated material as it is advanced by the auger.

Techniques or processes for efficiently producing concrete using dynamic feedback are disclosed. A concrete plant can use a control system to manage concrete production based on the dynamic feedback. The dynamic feedback can control mixing of concrete ingredients so as to yield uniform particle distribution for the concrete ingredients. The dynamic feedback can also avoid overflow situations as well as yield improved loading of the resulting concrete into a concrete transport vehicle (e.g., concrete truck).

A compressed building block formed of a pre-mix of fly ash, Class C type, are combined with various aggregates either ground wood and/or chips, having maybe a small amount of Portland cement added thereto, moisturized, and then either molded, extruded or compressed in a press into the configuration of a block. Boron as a mold retardant and an insecticide, may be added to the composition, to provide the formed block with further beneficial attributes. The blocks may be formed by a system for extruding such blocks from the formulation, or they may be formed by means of a mold or hydraulic or other press and pressed into the configuration of the desired block, needed for the construction.

A mobile volumetric concrete mixing system includes a suction system that vacuums up trench spoils while a trench is being cut. These trench spoils are then screened on-site for particle size to be reused and mixed with water, cement, and/or other admixtures at an auger mixer to form a backfill mixture. This backfill mixture may then be loaded into a hopper that continuously agitates the mixture so that the mixture does not harden before pouring. The agitating hopper is coupled to a discharge chute of the auger mixer and includes one or more augers disposed at various orientations that the backfill mixture is channeled through. From the agitating hopper, the backfill mixture is channeled to an applicator that moves along the trench and that enables the mixture to be quickly poured into the trench with little clean-up required.

The invention discloses a fine aggregate processing production system, which is characterized in that raw materials enter a sand making machine through a feeding device for sand crushing and making, obtained sand is conveyed to a screening screen for classification, wherein the sand with the particle size of 0-5mm is conveyed to a sand powder separation machine for sand separation; the sand with particle size larger than 5mm is classified into two categories, the sand with the particle size larger than 26mm is conveyed to the sand making machine for remaking, and the sand with the particle size of 5-16mm is conveyed to a grading adjustment machine connected with the screening screen for shaping and is returned to the sand making machine again for sand making. The fine aggregate processing production system adopts electric control centralized control, and grading adjustment is simultaneously performed during sand making so that production flow is shortened. The fine aggregate processing production system is provided with a dust removing and humidification device so as to achieve zero-emission production and save cost, and has huge economic value.

Disclosed is a vehicle security system, which uses a detection circuit to detect the supply of electric power from the car battery to the in-car computer and the status of the car ignition switch, and to start a backup power supply for the in-car computer, and drives the in-car computer to send an informing message to a remote receiver via a wireless communication module when the supply of electric power from the car battery to the in-car computer is terminated or when the car ignition switch is switched on during the alert mode of the vehicle security system.

The invention discloses a mixing vehicle state detecting system which comprises a detecting device (1), a control device (2) and an alarm device (3), wherein the detecting device (1) is mounted on a mixing vehicle and used for detecting the position and the unloading state of the mixing vehicle and obtaining a position signal and an unloading state signal; and the control device (2) is used for receiving the position signal and the unloading state signal and respectively comparing with a pre-stored target position signal and an unloading signal, when the position signal is different with the target position signal and the unloading state signal is the same with the unloading signal, the control device (2) is used for controlling the alarm device (3) to alarm. The mixing vehicle state monitoring system can monitor the position state and the unloading state of the mixing vehicle during the way of transporting concrete to a target site, effectively prevent the occurrence of phenomena of material stealing and the like and provide the guarantee to a third party with interest relationship. The invention further discloses the mixing vehicle including the mixing vehicle state monitoring system and a mixing vehicle state monitoring method.

An apparatus for on-site manufacturing of lightweight concrete used for insulation in roof decks and roof systems of building structures. The apparatus is supported on a transportable trailer frame and includes a mixer, one or more tanks for holding water and chemical products, such as foaming agents, and a concrete pump. The chemical agents and water are forced through a foam generating carburetor with pressurized air to produce a foam product. Concrete and the foam product are combined in the mixer, in accordance with a predetermined mixture ratio, and released into the concrete pump for forced discharge from the apparatus and application to a roof structure. An internal combustion engine drives hydraulic pumps which operate several components of the apparatus. Controls are provided for operating the several components, functions and operations of the apparatus.

A high performance concrete mixer comprises the batching aggregate hoister, blender, powder weighting device, additive weighing device, water weighing device and powder storage, with one end of the aggregate hoister at the output of the batching machine, the other end above the inlet of the blender, and the weighing devices for additive, water and powder storage at the top of the inlet of the blender respectively. It is compact and simple in structure, high in modularization, small in land occupation, good in economical effect with energy saving effects.

The invention relates to a novel stirring station, which comprises a skeletal material mixing cabin of which the bottom is provided with a material outlet, a material feeding system positioned below the skeletal material mixing cabin, a skeletal material weighting hopper positioned below the material feeding system, a material collecting belt conveyor positioned below the skeletal material weighting hopper, a stirring cylinder positioned below the material collecting belt conveyor, a cement storage bin, a cement spiral conveyor, a cement weighting hopper, a water pump and a water weighting hopper, wherein the stirring cylinder is simultaneously positioned below the cement weighting hopper and the water weighting hopper; the material feeding system is a variable material feeding system and comprises a variable feeding belt conveyor, a material outlet and a material door; and the structure of the stirring cylinder can be replaced according to different stirring materials.