34results about How to "Reduce incomplete combustion" patented technology

The invention relates to a high flame retarding radio frequency cable and a manufacturing method. A center of a cross section of a polygonal polyethylene framework type half air insulating layer is a tubular body; a plurality of convex ribs are arranged on the outer wall of the tubular body; a conductor inside a copper-clad aluminum conductor is arranged inside a pipe core of the tubular body of the polygonal polyethylene framework type half air insulating layer; and a wrinkled copper pipe outer conductor and an extruded layer PVDF (Polyvinylidene Fluoride) jacket are sequentially arranged on the convex ribs of the polygonal polyethylene framework type half air insulating layer. The manufacturing method comprises the following steps of: 1, manufacturing an insulating manner, 2, machining an outer conductor, and 3, machining a jacket. The high flame retarding radio frequency cable and the manufacturing method provided by the invention have the characterized in that the entire weight of the cable is reduced; and the cost is reduced. Compared with strip type half air insulation, a machining process is reduced by using the polygonal polyethylene framework type half air insulating layer; and the insulating layer can be manufactured by forming a single polyethylene insulation material in one step. With the adoption of the PVDF jacket, the fire retardance level of the cable reaches the highest CMP (Corrugated Metal Pipe) fire retarding level of the UL (Underwriter Laboratories Inc).

The invention provides a desulphurization method for a petroleum coke fuel for a dry process rotary cement kiln. The method comprises the following steps: adding rice hull powder into petroleum coke to be uniformly mixed to form a mixed fuel; and meanwhile, adding lithium slag into cement raw meal. According to the desulphurization method, on one hand, an alkali metal oxide with very high chemical activity in the rice hull powder can chemically react with sulfur in the petroleum coke in a combustion process to generate sulfate to be deposited in cement clinker, and on the other hand, the alkali metal oxide in the lithium slag can absorb sulfur oxide volatilized in gas in suspended preheating and decomposing processes of the cement raw meal to generate sulfate to be deposited in the cement clinker, so that the discharge of sulfur dioxide in tail kiln flue gas is reduced. According to the desulphurization method provided by the invention, the discharge of sulfur dioxide in the tail kiln flue gas can be reduced to 20.0mg / m<3> below.

A mixed fuel process using rice husk powder and petroleum coke powder as white cement rotary kiln for calcination. The rice husk is crushed into rice husk powder in a pulverizer, and the crushed rice husk powder is sent by the exhaust fan of the petroleum coke grinding system. The suction bag filter is mixed with the petroleum coke powder that enters the bag filter at the same time, and then sent to the mixed fuel bin, and then the mixed fuel is sent to the calciner and the rotary kiln head burner for combustion; the purified gas is produced by The exhaust fan exhausts into the atmosphere through the chimney. The mixed fuel mixed with rice husk powder and petroleum coke powder can reduce the ignition point and embers temperature of the fuel, greatly reduce the phenomenon of incomplete combustion of the fuel, and significantly reduce the calcining heat consumption of white cement clinker. The high calorific value and low ash content of petroleum coke are beneficial to the sintering of white cement clinker, and can avoid iron pollution brought by ash, which is very beneficial to the strength and whiteness of white cement. This process can mix crushed rice husks into petroleum coke powder to make mixed fuel, which is suitable for calcination of white cement clinker in new dry process cement kilns.

A promotion member is disposed a predetermined distance apart from an impregnation member disposed at an upstream side end of a combustion chamber, and an ignition device and a first air supply opening are prepared on an upstream side from the promotion member in an ignition space, and a second air supply opening is prepared on a downstream side from the promotion member in the ignition space. Fuel is supplied to a smooth surface of the impregnation member, and a concave part or cutout is formed in the impregnation member to house at least a part of the ignition device. A flow rate of air supplied to the combustion space through the second air supply opening becomes larger toward the downstream side. Thereby, ignitability in an evaporation type burner is improved and incomplete combustion of fuel on the downstream side of the combustion chamber is reduced.