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

The invention relates to a multi-doped sintering agent and the usage thereof. The multi-doped sintering agent consists of a main material and a core material, wherein the main material includes one or any combination of carbide slag, soda slug, quick lime or limestone; the core material includes mineralizer, salt-melting medium and coke slag bulking agent. The usage of the multi-doped sintering agent comprises the following steps: crushing, mixing and pulverizing each component of the multi-doped sintering agent; mixing the pulverized multi-doped sintering agent with coal to form a coal mixture; burning and calcining the coal mixture in a boiler; and cooling and collecting hydraulic binding material modified ash. The multi-doped sintering agent can reduce the carbon content of fly ash and reduce the coal consumption of the boiler and can achieve high-efficiency solid desulfurization. The hydraulic binding material active ash produced after the coal burning has wide purposes, thus achieving multiple purposes of one boiler and achieving good effects of fluidized-bed combustion boiler such as environment protection, energy conservation and high-efficiency waste utilization.

The invention discloses a combustion device with safety. The combustion device comprises a body and a flow guiding device, wherein the body is provided with a containing space and a group of lampwick; the lampwick is arranged in the containing space; the body is provided with a bottom surface; the lampwick comprises a top end; a first distance is arranged between the top end and the bottom surface of the lampwick; the flow guiding device is connected to the body and comprises a first shielding part which comprises a bottom side and a top side; a second distance longer than the first distance is arranged between the bottom side and the bottom surface of the first shielding part; a third distance longer than the first distance is arranged between the top side and the bottom surface of the first shielding part; the flow guiding device also comprises a first airflow channel for communicating the inner side and the outer side of the first shielding part. The combustion device disclosed by the invention has the advantages that in combustion, air is sucked through the airflow channel, and not only is the combustion provided, but also the airflow is controlled to pass through the surface of the combustion device so as to provide cooling; the shape of flame is controlled and stabilized by a first flow guiding part.

A fuel drain structure in a fuel line comprising a bypass channel for connecting a fuel influx side and a fuel efflux side of a regulator, and a rotary valve for opening and closing the bypass channel, contributing to a prevention of fuel remaining in the fuel line from entering the engine when the engine stops running, and minimization of pollution occurring when the engine is re-started.

The invention relates to a process of calcining mixed fuel in a white cement rotary kiln by using rice hull powder and petroleum coke powder. The process comprises the following steps: crushing rice hulls to rice hull powder in a crusher, sucking the crushed rice hull powder into a bag type dust collector by an exhaust fan of a petroleum coke grinding system, mixing and collecting the petroleum coke powder entering into the bag type dust collector and feeding the mixture into a mixed fuel cabin, and then, respectively feeding the mixed fuel to a decomposing furnace and a combustor at the head of the rotary kiln to combust; and discharging purified gases to the atmosphere by the exhaust fan through a chimney. The ignition point and burnout temperature of the mixed fuel doped with rice hull powder and petroleum coke powder can be reduced, the incomplete combustion phenomenon of the fuel is greatly reduced, and the calcining heat loss of white cement clinker is remarkably lowered. The white cement clinker is beneficial to calcination due to the characteristics of high heat value and low ash content of petroleum coke, iron pollution brought by ash content can be avoided, and the strength and whiteness of the white cement are facilitated. According to the process, crushed rice hulls can be doped into petroleum coke powder to prepare the mixed fuel, so that the process is suitable for calcining the white cement clinker in a new dry process cement kiln.

The invention provides a low-heating-value coal gangue combustion method, belongs to a coal combustion method, and aims to provide the low-heating-value coal gangue combustion method capable of improving the coal gangue combustion efficiency and reducing polluted gas emission. A biomass, a combustion improver and a sulphur-fixing agent are added according to a certain mass ratio, and are aged fora certain time after being uniformly mixed to obtain fuel for a coal-fired boiler, and three-times air supply is performed forcedly at the bottom of a fire grate of the coal-fired boiler when the fuelis fed at constant speed according to the fire coal amount required in combustion of the boiler by a mechanical coal feeding device, so that the sufficient combustion of the fuel of the coal-fired boiler is ensured. By improving the concentrations of oxygen and carbon dioxide, the rate of dissociation of carbon dioxide in fume is reduced, the content of carbon monoxide is reduced, the chemical incomplete combustion loss is reduced, the combustion burnout degree is beneficially improved, the heating value requirements of thermal power generation fuel are met, and finally the heating efficiencyof low-heating-value coal gangue can be improved by 30%-50%.

The invention discloses a shelf-stable biofuel granule and a preparation method thereof. The shelf-stable biofuel granule is prepared from, by weight, 10-12 parts of slab edgings, 15-20 parts of saw dust, 1-5 parts of a swelling agent, 0.1-0.5 part of an antibacterial agent and 0.1-0.5 part of a catalyst. The invention further discloses the preparation method of the shelf-stable biofuel granule. The shelf-stable biofuel granule is high in heat value, good in fire effect, easy to produce, low in cost and suitable for long-term storage.

The invention discloses a high-ignition-point fuel compression ignition and combustion regulation and control device based on flame jet flow control. The high-ignition-point fuel compression ignition and combustion regulation and control device comprises a spark plug (1), a pre-combustion chamber ejector (2), a main combustion chamber ejector (3) and a pre-combustion chamber body (4). The pre-combustion chamber main body (4) is arranged on the main combustion chamber (6), a pre-combustion chamber cavity (5) is formed in the pre-combustion chamber main body (4), the pre-combustion chamber ejector (2) and the pre-combustion chamber spark plug (1) are installed at two different positions on one side of the pre-combustion chamber main body (4) respectively, and the head of the pre-combustion chamber ejector (2) and the head of the pre-combustion chamber spark plug (1) extend into the pre-combustion chamber cavity (5). The pre-combustion chamber cavity (5) is communicated with the main combustion chamber (6) through a spray hole; the main combustion chamber ejector (3) is fixed to the other side of the pre-combustion chamber body (4), and the head of the main combustion chamber ejector (3) extends into the main combustion chamber (6). The use performance of the low-carbon zero-carbon fuel can be effectively widened, and wide popularization and application are facilitated.

The invention discloses an environment-friendly waste incinerator. The environment-friendly waste incinerator comprises a base plate, a heat insulated box, an incineration outer barrel, a cooling water tank and a driving motor. The base plate is flatly placed on the ground and used for stably supporting the device. The top side of the base plate is provided with a plurality of supporting columns.The top ends of the supporting columns are connected with the heat insulated box. The heat insulated box is of a double-layer structure and is internally provided with a heat insulation interlayer. One side of the heat insulated box is fixedly connected with the cooling water tank. The cooling water tank is used for containing cooling water. The top end of the incineration outer barrel is connected with a transition barrel. The incineration outer barrel is rotatably connected with the transition barrel. The transition barrel penetrates through the heat insulated box in a sealed mode. The top end of the transition barrel is fixedly connected with a feed port. An air blower I is arranged on one side of the heat insulated box. The air blower I is connected with an air pipe I. The air pipe I extends into the heat insulated box in a sealed mode. The environment-friendly waste incinerator is reasonable in structure, facilitates thorough incineration on waste and can filter waste gas.

Disclosed is an evaporative-type burner. An acceleration member (10) is disposed across a prescribed gap on an impregnation member (8) that is installed on the upstream end of a combustion chamber (30), an ignition device (22) and a first air supply port (24) are provided in an ignition space upstream from the acceleration member (10), and a second air supply port (28) is provided in a combustionspace downstream from the acceleration member (10). Fuel is supplied to the smooth surface of the impregnation member (8), and at least part of the ignition device (22) is accommodated in a recess (8c) or notch (32) formed in the impregnation member (8). A configuration is adopted such that the flow of air supplied to the combustion space from the second air supply port (28) increases further downstream. This improves ignition performance in the evaporative-type burner (1), and minimizes incomplete combustion of fuel on the downstream side of the combustion chamber (30).

The invention relates to a counter current heating exchanging water-fire tube boiler capable of saving energy and protecting the environment, which comprises a boiler shell, a containing box, a convection tube, a smoke-fire tube, a smoke separating wall, a combustion chamber and a convection tube flue, wherein high-temperature flue gas with two return trips firstly passes through a position with higher water temperature at the water side of the smoke-fire tube in the boiler shell for exchanging heat, then lower-temperature flue gas with three return trips passes through the convection tube with lower temperature at the water side of the convection tube flue for exchanging heat, and the flue gas is discharged out of the boiler body after the heat exchange; the original downstream heat exchanging means is completely changed; counter current heat exchange is realized; energy sources are saved; carbon dioxide emission is reduced; the purposes of saving energy and protecting the environment are achieved; the counter current heating exchanging water-fire tube boiler can be produced by adopting a normal boiler production technology; and the reconstruction of an existing boiler can be realized by only changing the flow of the flue gas.

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.

Combustion charge compositions comprised of a gasoline-like fuel and air for use in spark ignited internal combustion engines and methods to reduce global warming are described.

The invention relates to a coal-fired power plant online sludge drying and mixing combustion system and an application method thereof. The coal-fired power plant online sludge drying and mixing combustion system comprises a boiler hearth, a dust collector, a desulfurizing tower, a chimney, a stacking tank, a drying tank, a to-be-mixed tank and a mixing combustion conveyer. The boiler hearth is connected with a flue. An outlet of the stacking tank is connected with a sludge feed port of the drying tank. A sludge discharge port of the drying tank is connected with an inlet of the to-be-mixed tank. An outlet of the to-be-mixed tank is connected with the mixing combustion conveyer. The mixing combustion conveyer conveys a mixture of dry sludge and coal to the boiler hearth to be combusted. A flue gas inlet of the drying tank is connected with an outlet flue of the boiler hearth through an air pumping pipeline. A flue gas outlet of the drying tank is connected with the outlet flue of the boiler hearth through an air return pipeline. The coal-fired power plant online sludge drying and mixing combustion system guides flue gas to get into the sludge drying tank to dry sludge to achieve secondary utilization of the flue gas and online drying of the sludge. Under the condition of not affecting the boiler efficiency, real-time drying and real-time mixing combustion of the sludge are realized. The cost of drying and mixing combustion at different time and different places and the sludge transportation cost in the drying and mixing combustion process are reduced.

The invention discloses a four-section proportional valve for a gas water heater. The four-section proportional valve is characterized by comprising a valve body, an air inlet formed in the valve body, a normally-open air outlet communicated with the air inlet, a first sectioning air outlet and a second sectioning air outlet. A proportional valve and a stop valve are arranged on the air inlet. The first sectioning air outlet and the second sectioning air outlet are provided with a first sectioning valve and a second sectioning valve respectively. Compared with the prior art, the four-section proportional valve has the advantages that the two sectioning air outlets and one normally-open air outlet are arranged, and four-section control over gas can be achieved just by simple arrangement and combination; the four-section proportional valve is simple in structure, convenient to control and beneficial to wide-range adjustment of the gas amount; meanwhile, the proportional valve is arranged on the air inlet so that the gas amount at the normally-open air outlet can be freely adjusted; proportion adjustment is convenient, so that fire transfer faults and incomplete combustion in the sectional adjusting process are greatly reduced.

Disclosed is a fuel tank for a motor vehicle whose inner face is processed with an inorganic coating agent comprising (A) fine particles carrying silver and/or copper and (B) inorganic fine particles, and the tank inhibits oxidation of the fuel such as gasoline or light oil, and further decreases the cluster of gasoline or light oil to make finer the particle size of atomized fuel, thereby improving ignitionability and combustibility, which makes it possible to decrease imperfect combustion and to decrease substantially the consumption of the fuel.

The invention discloses a fuel oil additive with a cleaning effect, and belongs to the technical field of petrochemical additives. The fuel oil additive comprises the following raw materials in partsby weight: 60-90 parts of ethylene glycol, 1-5 parts of industrial glycerol, 1-5 parts of kitchen oil, 1-3 parts of n-butyl alcohol, 1-3 parts of artemisia apiacea oil and 0.2-0.8 part of Artemisia argyi oil. The invention further discloses a preparation method of the fuel oil additive. The preparation method comprises the following steps of 1, mixing n-butyl alcohol, kitchen oil and industrial glycerol together, and pouring the formed mixture into a closed reaction kettle for a stirring reaction, wherein the stirring rotation speed is 2000-3500 r/min, and the stirring time is 4-24 h; 2, conducting standing for 10 hours or more after a stirring machine stops rotating, and then filtering and separating substances in the stirring machine to obtain ethylenediamine generated in the stirring reaction process of n-butanol, kitchen oil and industrial glycerol; 3, mixing and stirring the ethylenediamine obtained in the step 2 with artemisia apiacea oil and Artemisia argyi oil, wherein the stirring rotating speed is 4500 to 5500 r/min; and 4, adding ethylene glycol into the mixed solution obtained in the step 3, and conducting standing, so as to obtain the fuel oil additive after the ethylene glycol and the mixed solution are completely dissolved and mixed.

The invention relates to a counter current heat exchanging smoke-fire constant pressure boiler capable of saving energy and protecting the environment, which makes use of the counter current heat exchanging principle and comprises a boiler furnace, an upper smoke-fire tube, a lower smoke-fire tube, a boiler shell and a tube sheet, wherein high-temperature flue gas with two return trips firstly passes through a position with higher water temperature at the water side of the upper smoke-fire tube in the boiler shell for exchanging heat, then lower-temperature flue gas with three return trips passes through a position with lower water temperature at the water side of the lower smoke-fire tube in the boiler shell for exchanging heat. The flue gas is discharged out of the boiler body after the heat exchange; the original downstream heat exchanging means is completely changed; counter current heat exchange is realized; energy sources are saved; and carbon dioxide emission is reduced; as the constant pressure design is adopted, steel consumption is reduced, and the purposes of saving energy and protecting the environment are achieved; and the counter current heat exchanging smoke-fire constant pressure boiler can be produced by adopting a normal boiler production technology.

The invention provides solid waste treatment equipment and a solid waste treatment method, and relates to the field of waste treatment equipment. The solid waste treatment equipment comprises a base,wherein a shell is arranged above the base, the bottom of the shell is fixedly connected with supporting legs, the bottoms of the supporting legs are fixedly connected with the base, the top of the shell is fixedly connected with a crushing mechanism, the bottom of the shell is fixedly connected with a discharging pipe, a screening mechanism is arranged in the shell, and a recycling mechanism is arranged on one side of the shell. According to the solid waste treatment equipment, through the arrangement of the screening mechanism, waste particles with large particles and small particles can beseparated, then the large particles of the waste particles are conveyed to a lifting plate of the recycling mechanism, through the arrangement of the recycling mechanism, the large particles of the waste particles can be guided into the crushing mechanism again to be crushed, until all the waste is crushed into qualified small particles, the small particle waste is subjected to combustion treatment, incomplete combustion can be effectively reduced, and use is convenient.