A device for dispersing foul gaseous effluent emissions released diffusely by sources located close to the ground, in particular by wastewater treatment ponds (10, 11, 12), includes: at least two auxiliary air or gas injectors (5a1, 5b1; 5a2, 5b2; 5a3, 5b3) oriented upwards and installed in opposing zones on the periphery of each foul gaseous effluent source, such as to disperse the gaseous effluents; separate supply elements (8.1, 13a1,13b1; 8.2, 13a2, 13b2; 8.3, 13a3, 13b3) for the injectors; and wind-direction-sensitive control elements for ensuring that at least the injector(s) best located to disperse and/or lift the gaseous effluent plume are supplied.

A gaseous fuel and air mixing venturi device is adapted for installation in a gaseous fuel carburetor and has a venturi body defining annular inner and outer venturi passageways which each have a throat of reduced cross-sectional area and have inlet ends in communication with an air inlet of the carburetor. A fuel inlet is configured for connection to a fuel port of the carburetor, and communicates with a plurality of fuel supply ports in the body communicating radially with the inner and outer venturi passages to mix with the air flowing in the passageways.

Disclosed is a system that may include a holding tank configured to hold a liquid, a pump configured to receive the liquid from the holding tank, a nozzle configured to emit a fog, and a fan configured to push the fog through a tube. Disclosed also is a method of creating a fog by transferring a liquid from a holding tank to a pump, pumping the liquid to a pressure regulator, moving the liquid from the pressure regulator back to the holding tank when a pressure is above a first value and moving the liquid to a fogger when the pressure is below the first pressure.

Disclosed is a smart dust suppression system that sprays atomized water through a fan that ensures the dust raised during collection, transport and discharge to be suppressed at the point where it starts to form without spreading to the environment, in enterprises such as cement factories, iron and steel factories, coal enterprises, thermal power plants, ports and the like, in machines that ensure the stockpiling of raw materials and the recovery of the stocked raw materials in all open and closed mine sites, in clamshell and conveyor belt systems, thereby preventing environmental pollution, protecting human health, preventing machinery and equipment from being affected by dust, and suppressing the dust emitted by the conveyor belts and the clamps during the unloading of the raw material.

The present application discloses a gas cooling apparatus and a heat furnace. The gas cooling apparatus comprises a pipeline structure. The pipeline structure defines a gas flow channel and a liquid channel; the gas flow channel is used for circulating a high-temperature gas; and the liquid channel is located outside the gas flow channel and is provided with a liquid spraying part communicated with the gas flow channel. The pipeline structure is further provided with a gas spraying part communicated with the gas flow channel; and a liquid sprayed from the liquid spraying part can be atomized under the action of the high-temperature gas in the gas flow channel and the high-pressure gas sprayed from the gas spraying part. The gas cooling apparatus has the advantages of simple structure, convenient use, rapid cooling rate for a high-temperature gas, and less use of a cooling liquid.