7 results about "Soot" patented technology

The invention discloses a swim ring-shaped side suction-type range hood. The swim ring-shaped side suction-type range hood is provided with a housing, wherein the housing is ring-shaped and verticallyassembled; a plurality of air inlet sets are formed in the side wall surface of the housing; the included angle Alpha between a housing plane with the largest cross section area and the horizontal plane is greater than 0 degree and smaller than or equal to 90 degrees; the air inlet sets are communicated with air ducts assembled inside the housing; an air suction assembly is further assembled inside the housing; the air suction assembly is communicated with the air inlet sets through at least two air ducts; the air ducts communicated with the air inlet end of the air suction assembly are cleanair inlet ducts; the air ducts communicated with a smoke vent duct on the top of the housing are soot air inlet ducts; the clean air inlet ducts are communicated with the clean air inlet sets of theair inlet sets; the soot air inlet ducts are communicated with the soot air inlet sets of the air inlet sets. The swim ring-shaped side suction-type range hood is unique and novel in exterior structure; by virtue of an aerodynamic principle, a curved surface structure is adopted for suction, the side suction of soot is achieved, and the suction effect is more obvious and efficient.

The invention provides a method and device for recovering soot generated in the preparation process of copper-phosphorus brazing filler metal. The method comprises the following steps: red phosphorusand copper are put into a graphite crucible of a closed furnace body, nitrogen is introduced, and the copper-phosphorus brazing filler metal is produced by a high temperature reaction; an exhausting system is started, the P2O5 soot generated in the reaction is pumped out, and is sent to a soot absorption reaction tower; a spray system and a tail gas treatment system are started, stainless steel heating rods are started to heat water at the bottom of a tower body to 60 to 80 DEG C, the heated water is transferred to the spray system and water mist is sprayed out through spray nozzles, dropletscondensed by the water mist flow through central circular holes on punching plates of a flow separation system, the high-temperature P2O5 soot is absorbed by water vapor in the soot absorption reaction tower to react to form phosphoric acid to be sunk to the bottom, remaining flue gas is cooled by a cooling and defogging system, and is treated by the tail gas treatment system to be discharged intothe atmosphere, and copper-phosphorus brazing filler metal liquid obtained by the reaction is poured into a mold to prepare a copper-phosphorus brazing filler metal ingot. The method and device provided by the invention can be used for treating a large amount of the P2O5 soot generated in a smelting process, and environmental pollution is avoided.

The invention discloses a boiler economizer comprising a thermal insulation shell and a water storage layer. One side of the top of the thermal insulation shell is connected with a smoke inlet, and the other side of the top of the thermal insulation shell is connected with a smoke outlet; high-temperature resistant filter bags are installed below the smoke inlet and the smoke outlet, and the side,close to the smoke inlet, of the water storage layer communicates with a cold water inlet; the other side of the water storage layer communicates with a hot water outlet, and the inner side of the water storage layer communicates with coiled pipes wound around the high temperature resistant filter bags; and a plurality of heat conduction fins are installed on the inner side of the water storage layer uniformly. The boiler economizer has the beneficial effects that the contact area between high temperature smoke and heat exchange media is increased, so that the heat exchange efficiency of equipment is improved; the energy-saving efficiency is high, and meanwhile the high-temperature resistant filter bags are arranged, and can be used for filtering the high temperature smoke in the boiler economizer; an ash clearing mechanism is arranged, so that massive accumulation of ash in the boiler economizer is reduced effectively; the heat exchange efficiency is ensured, and the energy-saving efficiency is further improved; and the service life of the equipment is further prolonged.

The invention discloses an anti-dust and anti-inflamatory cosmetic composition containing natural plant extracts, specifically, a cosmetic ingredient that inhibits the attachment of fine dust containing pollutants such as soot from a factory, automobile exhaust and the like to the skin by selecting one or more natural plant extracts as an active ingredient from the hinoki wood leaf extract, Ophiopogon japonicus extract and Artemisia annua extract which provide the negative charge and that can also inhibit the inflammatory reaction caused by the attachment. The natural plant extracts in the cosmetic ingredient of the invention have the same negative charge as the fine dust and an electrostatic reaction is formed between the negative charges, so that the fine dust can be prevented from attaching to the skin, the effect of blocking skin irritation caused by the attachment of fine dust can be also achieved, the occurrence of skin problems can be prevented, and the fine dust is prevented from coming into contact with the skin to cause an inflammatory reaction, thereby keeping the skin clean.

The invention discloses high-temperature printing and dyeing waste gas treatment equipment. The equipment comprises a multi-stage filtering device, a gas-gas heat exchange device, a rotational flow tower, a Venturi scrubbing tower and an active mud washing tower which are communicated in sequence; the Venturi scrubbing tower comprises a washing tower body, wherein the top of the Venturi scrubbing tower is provided with an opening, the side wall of the Venturi scrubbing tower is provided with an outlet, and the outlet is connected with an exhaust fan; the washing tower body is internally provided with cleaning liquid, and is provided with a Venturi tube, and an inlet of the Venturi tube is connected to the top opening and is used for introducing waste gas treated by the rotational flow tower; the pipework of the Venturi tube is connected with a conical oblique nozzle, and the tail end of the conical oblique nozzle is inserted under the liquid surface; the waste gas passes through the pipework of the Venturi tube to form a high-speed airflow, and tangentially enters the portion, under the liquid surface, in the tower body through the conical oblique nozzle to form a large number of microbubbles, and the microbubbles are in full contact with the cleaning liquid to remove soot and particulate matter in the waste gas. The high-temperature printing and dyeing waste gas treatment equipment can process the waste gas of the printing and dyeing process efficiently and stably at low cost.