39results about How to "Reduce smoke and dust emissions" patented technology

The present invention relates to a biowax comprising a partial acyl glyceride selected from the group consisting of a monoacylglyceride, a diacylglyceride and the combination thereof. The present invention also relates to a biocandle comprising a biowax and a wick, and to a method of producing the same.

A piston for a cylinder of a combustion engine includes piston crown including a piston bowl formed by an upwardly facing cavity, the piston bowl including a floor section with a central, and a side section, the side section connecting the inner section with an upper surface of the piston crown, wherein the side section is formed with mutually spaced apart ridges protruding towards the apex, and wherein the side section having at least one recess at an upper end of the side section connecting the side section with the upper surface of the piston crown.

A system for regenerating a particulate filter is disclosed. In one example, oxygen is pumped from the intake system of a direct injection turbocharged gasoline engine to the exhaust system by a compressor. Simultaneously, exhaust gases may be pumped from the exhaust system to the intake system for the purpose of reducing NOx while regenerating a particulate filter.

The invention relates to a low-NOx slag tapping double-swirl pulverized coal burner, which is suitable for 2-35 ton steam and hot water boiler and burning devices desired for heat energy for various kinds of industrial productions such as furnace, forging, steel making, road and bridge mixing station, and cold aggregate heating. The low-NOx slag tapping double-swirl pulverized coal burner comprises an adjustable burning device and a cylindrical burning chamber and is characterized in that the housing of the burning chamber is a heat insulating layer; a cooling water channel or a secondary air heat exchange fin is arranged between the housing the burning chamber and a secondary air chamber; a cooling water outlet pipe and a cooling water inlet pipe are respectively arranged on the upper and the lower ends of the cooling water channel; and a primary gas axial flow generator is arranged on the top of the jacket of an adjusting screw. The low-NOx slag tapping double-swirl pulverized coal burner has the advantages of sufficient burning and improved service life.

The invention discloses an oxygen steaming-free high-strength concrete anticorrosive pipe pile and a production method thereof, the oxygen steaming-free high-strength concrete anticorrosive pipe pile comprises the following components: by weight, 165-220 parts of cement; 85-210 parts of mineral powder; 80-225 parts of ultrafine powder; 700-790 parts of sand; 950-1040 parts of stones; 4.13-5.76 parts of a water reducing agent; 7-10 parts of a rust inhibitor and 120-170 parts of water, and with the water-binder ratio of 0.31 to 0.36. According to the production method, a high pressure oxygen steaming process is omitted, a large number of coal and electric power are saved, emissions of smoke and dust are reduced, the production method is green and environmentally friendly, meets the national low carbon production requirements and reduces the environmental burden of enterprises, and mechanical properties and durability of the produced oxygen steaming-free high-strength concrete anticorrosive pipe pile are superior to that of pipe piles in the prior art.

Methods and systems are provided for slowly rotating an engine, unfueled, via a motor prior to an imminent engine restart to heat the engine. By rotating the engine so that heat generated in the compression stroke of a cylinder can be transferred to cylinder walls, thereby expediting engine warm-up. By warming the engine before a restart, particulate emissions generated during an engine cold-start due to direct injection of fuel can be reduced.

The invention discloses a system for producing zinc powder by hydraulic atomization. The system comprises a cored induction electric furnace, a dust removal device, a heat insulation leakage package,an atomization device, a screening filter device and a waste water recovery device. A zinc plate feeding opening and a zinc grain feeding opening are formed in a cover of the core induction electric furnace, a smoke and dust box is arranged on the zinc plate feeding opening, an inverted baffle plate is arranged on one side of the smoke and dust box, and zinc plates are laid on the furnace wall ofthe inner side of the cored induction electric furnace; a zinc melt liquid outlet is connected to an electrothermal diversion groove, and flow restricting rock wool and a flow baffle plate are arranged at the front end of the electrothermal diversion groove; the atomization device includes a water storage tank and an atomization tank, and the water storage tank is communicated with an atomizationnozzle through a high pressure hose and a high pressure pump; the waste water recovery device includes a filter and a cooling tower. According to the system, the process controllability is excellent,the efficiency is high, the performance of zinc powder produced is great, waste water produced in the preparation process by hydraulic atomization is effectively treated and recycled, water resourcesare save, the cost is reduced, and the system is safe and reliable without environmental pollution.

A separate igniter fuel injection system is described for use with diesel engines operating on tar based slurry fuel with a common rail slurry fuel injection system. The igniter fuel is injected prior to injection of the slurry fuel, during each engine compression stroke, so that the ignition and burning of the igniter fuel will supply hot gases for the evaporation and thermal cracking needed to ignite the tar fuel portions of the slurry. This separate igniter fuel injection system can also be used for cold startup of a diesel engine operated on tar based slurry fuels.

A combustion chamber of diesel engine. The diesel engine includes a cylinder head, a cylinder sleeve, and a piston. The cylinder head, the cylinder sleeve, and the piston form the combustion chamber. The combustion chamber includes a headspace; a central part; and a collision belt. The collision belt includes a collision surface, an upper guide surface, and a lower guide surface. The collision belt is configured to connect the headspace and the central part. The collision surface is an inclined surface, a convex surface, or a concave surface. The first tapered surface includes a second inclined surface, a second curved surface, and a third inclined surface; the second tapered surface includes a fourth inclined surface, a third curved surface, and a second concave surface; the first curved surface includes a second convex surface and a third concave surface.