33results about How to "Reduce the scope of pollution" patented technology

The invention provides a concentrate dehydrating technology and a device, which is composed of a set of dehydrating pools (3) with special devices (3) and a high pressure air supply system (1) which are manually matched, a dehydration task comprising three processes: settling dehydration, vibration dehydration and pneumatic dehydration, is completed by utilizing self characteristics of concentrate slurry. The concentrate slurry, after natural settling dehydration in the dehydrating pool (3), is blown into a bottom surface of the dehydrating pool (3) by a high pressure blast to generate a big blasting force and a big vibration force, to make solid particles be dehydrated from a hydration membrane package and generate settlement and compaction, and water is extruded out and blown into a water return system (4) by high pressure blast, thereby making a water content of a concentrate product reach a standard requirement. The concentrate product is loaded, transported and sold by a concentrate loading and transporting system (5). The technology and device has advantages of simple flow, small equipment, no intermediate material conveying and transferring link, no filtering medium, energy saving, consumption reduction and low labor intensity, is suitable for dehydration of the concentrate of various metal and nonmetal ores, and is suitable for large scale industrialization production.

The invention provides a method for reducing pesticide migration from soil to a water environment. Alkyl polyglucoside APG and amphiphilic cholesterol grafted alginic acid derivative CSAD serve as emulsifying agents for making original pesticides into emulsion in water. By adoption of the method, adsorption of the pesticides in soil can be improved effectively, the pesticides are prevented from further migration along with flowing water, and accordingly a pesticide contamination range is narrowed, and water environment pollution caused by the pesticides can be controlled from the source.

The invention relates to a grounding device, and particularly relates to an environment-friendly leak-proof moisturizing grounding device and a construction method, which are applicable to construction in which a large substation must use a resistance reducing agent or a graphite grounding carbon rod to reduce the resistance value of a ground grid. In addition, the device and the method are also applicable to construction in which a grounding device of communication equipment, such as a mobile communication tower, a television tower, a microwave tower, a radio station, a radar station, a railway, needs to use the resistance reducing agent. The structure of grounding device is characterized in that a hot galvanized layer is arranged on the outer surface of a container, and an electric connection welding head is arranged on the container. The grounding device and the construction method provided by the invention are applicable to all constructions in which the resistance reducing agent or the graphite grounding carbon rod is needed to reduce main electric parameters of the grounding grid; and the device can reduce the range of pollution to the nature due to leakage of the resistance reducing agent, and can also play the functions of moisturizing, preventing resistance reducing agent drain and the like around the grounding electrode.

The invention discloses a dust isolation and collection method for a fully mechanized excavation face, which comprises an upper drum (2) and a lower drum (3), wherein the lower drum (3) is arranged below the upper drum (2), the upper drum is connected with an upper cavity bell mouth (4), the lower drum is connected with a lower cavity bell mouth (5), a withdrawable dust remover (1) is arranged in the upper drum (2), the upper cavity bell mouth (4) forms a negative pressure zone, a press-in type ventilator (11) is arranged in the lower drum (3), and the lower cavity bell mouth (5) forms a positive pressure zone. Due to the adoption of the structure, the dust isolation and collection method can greatly reduce the scope of pollution in use. Meanwhile, a dust-tight rectangular air curtain is also formed, thereby improving the effectiveness of dust isolation and collection and reducing the chance of suffering from pneumoconiosis of workers.

The invention relates to a sucking flue of a range hood, belonging to the manufacturing technology field of a flue duct of the range hood. The sucking flue of the range hood comprises a fume suction device supporter, a fume suction device body, an inner flue duct body and an outer flue duct body, wherein the inner flue duct body and the outer flue duct body are fixed on the wall of the range hood, the fume suction device supporter is arranged at the tail end of the outer flue duct body, a gap is reserved between the fume suction device supporter and the outer flue duct body, and the fume suction device supporter enables the fume suction device body to guide substances in the outer flue duct body to vertically move downwards. After the above scheme is adopted, oil fume is exhausted into the flue duct on the ground; and besides, a fume suction structure is arranged in the flue duct to ensure the kitchen is quiet and ensure that the whole flue duct is cleaned conveniently.

The invention relates to a garbage disposal system and a garbage disposal method. The garbage disposal system includes: a garbage conveying mechanism, a garbage collecting bucket and a garbage lifting mechanism; the garbage conveying mechanism is used to collect garbage and transport the garbage to the garbage collecting bucket; the garbage lifting mechanism and the garbage The collection bucket is connected by driving and the garbage collection bucket is suspended and transported. The garbage disposal method adopts the garbage disposal system to dispose of garbage. The garbage processing system and the garbage processing method provided by the present invention can automatically collect and process garbage, have high garbage collection efficiency, small space occupation rate, and effectively avoid virus transmission caused by garbage.

The invention discloses a lifting device for dying livestock and poultry crushing and discharge. The lifting device comprises a frame body and a lifting frame, wherein the lifting frame is used for fixing a moving and unloading vehicle, a first guide rail and a second guide rail are oppositely arranged on the left and right sides of the frame body, and a circular section is formed on the upper endof the second guide rail; the lifting frame is located in a lifting cavity of the frame body, a rotating shaft is arranged on the upper end of the front side of the lifting frame in a transverse direction, and both ends of the rotating shaft are installed on the first guide rail in a sliding mode; a bracket which is used for supporting the moving and unloading vehicle is arranged at the bottom ofthe lifting frame, an opening which is used for the moving and unloading vehicle to enter and exit is formed in the back side of the lifting frame, and sliding parts which face the second guide railand are arranged on the second guide rail in the sliding mode are arranged on the left and right sides of the lifting frame; and a windlass is installed on the top of the frame body, and a steel wirerope of the windlass is connected to the lifting frame and is located between the first guide rail and the second guide rail. The lifting device has the advantages of clever structural design, convenience in sweeping and cleaning and the like and is favorable for increasing the cleanliness of a workshop, and the moving and unloading vehicle can be directly lifted, so that the pollution range of dying livestock and poultry is reduced.

The invention design a range hood and belongs to the technical field of fume extraction in a kitchen. An outer flue body is in contact with the ground and the lateral surface of the outer flue body can be separated from the outer flue body; a fume extraction device is arranged at the tail end of the outer flue body; a fume extraction device carrier enables a fume extraction device body to guide substances in the outer flue body to vertically move downwards; and a guide plate which is gradually close up towards the side wall is arranged in an inner flue body. Due to adoption of the technical scheme, oily fume can be completely extracted; the range hood has high oil extraction capacity, realizes the quiet kitchen and also can protect a blade from being rapidly stained with oil; the range hood protects the environment and is convenient to clean; and the oil extracted into the range hood is prevented from flowing back to a range hood panel.

The invention provides an anti-spray rain cap, which is arranged on the safety valve of an outdoor pressure vessel, and includes an umbrella cap, a movable cylinder connected to the umbrella cap through a support frame, and a fixed cylinder covered on the movable cylinder. The upper part of the cylinder wall of the fixed cylinder is provided with a blowout prevention pin, and the movable cylinder is provided with an opening matching the said blowout prevention pin, and the blowout prevention pin can pass through the opening when the movable cylinder is loaded into the fixed cylinder. The anti-spray rain cap provided by the present invention can block rain and snow to prevent the safety valve from being corroded or frozen, avoiding the safety valve from being affected by external weather, and can prevent the rain cap from being damaged when the safety valve automatically releases pressure. The medium flushed out by high pressure is taken away together.