An apparatus for preventing proliferation of dust during mixing of material, including a semi-dome shaped element configured for placement over a top opening of a mixing container, a fastener extending along a bottom circumference of the semi-dome shaped element, such that said fastener is configured to couple to the top brim of the mixing container, and an opening in the semi-dome shaped element, the opening configured to accept a vacuum hose.

The present disclosure provides a fracturing fluid mixing equipment including a clear water supply system, at least two mixing systems, at least one powder tank, at least two powder conveying systems, a mixing tank, a feeding system and a power system. The clear water supply system has two parallel water supply paths which are connected to the mixing system and the mixing tank respectively. The powder conveying system is connected to the powder tank. There are same number of powder conveying systems and mixing systems which are connected in one-to-one correspondence. The mixing system is connected into the mixing tank. The feeding system adds powder by pneumatic conveying. The power system provides driving force by pure electric power and/or electro-hydraulic power. According to present disclosure, the power system can reduce fuel consumption and exhaust emissions. The feeding system can be compatible with various adding conditions of powders in different packaging, which can reduce the possibility of dust pollution, thereby reducing labor costs and occupational injuries and being more efficient and environmentally friendly.

A dust control device for withdrawing airborne particles from a container includes a body defined by a cylindrical wall and having a hollow interior extending between first and second open ends. The cylindrical wall has a continuous circumferential surface extending from the first open end to the second open end, a funnel-shaped inlet portion extending from the first open end, a base located at the second open end that is engageable with a container and that extends around at least a portion of the circumferential surface of the cylindrical wall, an outlet port located between the first and second open ends of the body, and a channel extending around the circumferential surface of the cylindrical wall that is in fluid communication with the outlet port. The channel has a bottom opening extending around the circumferential surface of the cylindrical wall and wherein the base surrounds the channel.

This invention (FIG. 1) was conceived out of necessity to control hazardous conditions created while mixing materials like concrete or mortar in containers (1) such as a three gallon or five gallon bucket. The invention (2) is a vacuum attachment which produces a low pressure zone within the bucket when a vacuum is applied to the outlet port (3) of the invention that will keep dust and other airborne material from leaving the interior of the invention through the top of the opening (4). It consists of a funnel shaped opening (4) on the top and a channel around the underside of the funnel leading to the vacuum attachment opening (3), which creates high and low pressure zones, which controls the release of particulate into the atmosphere.

In accordance with presently disclosed embodiments, systems and methods for handling bulk material in a manner that reduces dust, noise, and emissions are provided. The presently disclosed techniques use portable containers to transfer bulk material from a transportation unit to a blender inlet. The containers may be carried to the location on the transportation unit, where a hoisting mechanism is used to remove the container from the transportation unit and place it in a desired location. When bulk material is needed at the blender inlet, the hoisting mechanism may position the container of bulk material onto an elevated support structure. Once on the support structure, the container may be opened to release bulk material to a gravity feed outlet, which routes the bulk material from the container directly into the blender inlet. The disclosed containerized bulk material transfer system and method allows for reduced dust, noise, and emissions on location.

A system for use with a gunite rig to capture airborne gunite type materials, particularly those containing silica, during the preparation of the gunite. In one respect, as the bags of silica-containing material are placed in the mixing section of the gunite rig and ripped open, airborne gunite dust is captured by a hood and suction system positioned above the mixer. Further, the mitigation system includes a plenum box and suction system positioned adjacent the mouth of a gunite pot to capture gunite dust generated as the mixed gunite material falls from a hopper into the gunite pot.

Collector for attachment to a vacuum cleaner to collect particulates spilling out of a drum during mixing.

The present invention provides a dust removal system for a chimney of a mixer. The system includes a dust removal water tank and a first pipeline. One end of the first pipeline is communicated with an outlet of the chimney at a tail of the mixer, and the other end is inserted into the dust removal water tank. A water inlet and a water outlet are provided in the dust removal water tank. An exhaust port for discharging filtered gas is provided in an upper part of the dust removal water tank. The system does not need additional power, and is energy-saving and environmentally friendly. Water vapor discharged facilitates the sedimentation of dust particles in the mixer, thereby reducing loss of raw material mixture, making sintering quality more stable and solving a problem that gas discharged in prior arts contains more powder and pollutes the environment.

The present disclosure includes embodiments of a recirculation system and methods for mitigating release of silica dust at a hydrocarbon well site. The embodiments of the recirculation system may include a blender hopper, one or more proppant silos, a footed hood, a conveyor, one or more amplifiers, one or more compressed air sources, one or more vacuum hoses, an augur, and a blender. In one or more embodiments, the methods of recirculating silica dust to mitigate the release of silica dust includes conveying sand proppant on a conveyor from the one or more proppant silos to a blender hopper, directing sand proppant from the conveyor into the blender hopper, supplying compressed air to one or more amplifiers, directing sand proppant from the blender hopper to a blender via an augur, and adjusting the extent of at least one of the two or more leg segments and the leg adjustment arrangement.

Methods for handling bulk material in a manner that reduces dust, noise, and emissions are provided. The presently disclosed techniques use portable containers to transfer bulk material from a transportation unit to a blender inlet. The containers may be carried to the location on the transportation unit, where a hoisting mechanism is used to remove the container from the transportation unit and place it in a desired location. When bulk material is needed at the blender inlet, the hoisting mechanism may position the container of bulk material onto an elevated support structure. Once on the support structure, the container may be opened to release bulk material to a gravity feed outlet, which routes the bulk material from the container directly into the blender inlet. The disclosed containerized bulk material transfer system and method allows for reduced dust, noise, and emissions on location.