49 results about "Prescribed burn" patented technology

The invention provides an air fuel ratio control system of a burning heating furnace capable of controlling burning widely from oxidation burning to restoring burning and of determining oxygen concentration simply lacking of operators with technical knowledge. The system includes a burner (2) arranged in the burning heating furnace, a fuel supply pipe (3) supplying fuel gas to the burner (2), an air supply pipe (4) supplying air for burn to the burner (2) and a temperature control computer (10). The temperature control computer (10) pre-remembers a first formula (burning air amount=fuel gas flow*theoretical air amount*air fuel ratio) and a second formula (air fuel ratio=20.6/20.6-oxygen concentration) and automatically controls burning air amount according to the gas flow based on the formula when inputting the oxygen concentration.

The invention relates to a method for improving recovery rate of a thick massive viscous oil reservoir by controlling burning gas injection speed, which mainly comprises the following steps of: determining the thickness and residual oil saturation of an oil layer at the burning front edge by stages according to the condition and rule of fire-flooding live wire wave by combining fine research results of double analogs in a massive oil reservoir chamber; then determining planar residual oil saturation and residual oil at different positions apart from a gas injection well, and predicting the burned section area of the burning front edge, the non-homogeneity of the reservoir and the optimal configuration relationship between the residual oil and the gas injection speed; and finally, dynamically adjusting the single-well gas injection speed by stages, and selecting a variable and lower burning gas injection speed to maintain stable and normal burning on the premise of ensuring combustion. The method can fulfill the purposes of improving the burning wave and volume of the massive oil reservoir, the development effect of the burning oil layer and the final recovery rate.

The invention discloses a fire coal method to discharge low nitrogen oxide, which is characterized by the following: adopting high temperature oxygen-enriched smoke gas from circulating fluidized bed burner as high temperature low oxygen twice wind of pulverized coal fired boiler; burning coal dust in high temperature low oxygen coordinating wind with temperature at 800-950 deg. c; decreasing generated quantity of nitrogen oxide (NOx)greatly; controlling circulating fluidized bed burner and main combustion area of coal dust burner fire box at reducing atmosphere; controlling burning temperature; inhibiting the generation of NOx; keeping stability and complete burning property of burning; realizing low NOx discharge of boiler; decreasing the discharging quantity of NOx below 130mg/Nm3.

The invention relates to a system for simultaneously realizing one-button burning on multiple switches, a method thereof and the corresponding switches. The system comprises a computer arranged with a one-button burning tool, at least a serial port expansion member and a bench common exchange apparatus. The system can simultaneously sent correlation operation instructions to multiple switches to be burned through the serial port expansion member and read the return content; and then is simultaneously connected to the internet access of multiple switches to be burned through the common exchange apparatus, and then simultaneously transmits the upgrade files to the multiple switches to be burned; the one-button burning tool arranged on the computer can be used for starting several tasks and control burning operation on multiple switches. The system can greatly increase the production efficiency of switch burning, by management of MAC address and batch number, faults such as repetition and omission due to artificial operation can be reduced.

The control method of burning state in coal powder boiler includes the following steps: setting the value Sp of oxygen content in boiler fume exhaust; measuring the practical oxygen content Pv in furnace fume, calculating the deviation E1 between Sp and Pv, and calculating the given value of total secondary blast based on the outer loop controller; judging whether the powder making apparatus is running; if 'yes', distributing the total secondary blast value to the fire nozzles in the first proportion; if 'no', distributing the total secondary blast value to the fire nozzles in the second proportion; and regulating the secondary blast gates to track the given blast amount. The method can distribute blast accurately, fast and automatically.

This invention relates to recovering hydrocarbons from oil shale preferably in-situ where the temperature of the oil shale deposit is controlled to maximize recovery of hydrocarbons and minimize decomposition of carbonate minerals into carbon dioxide that might be released into the atmosphere. The process includes generating heat from hydrocarbon gases recovered from the oil shale and then later performing a controlled burn of the char that is left in the spent shale after the kerogens have been thermally cracked and the most of the recoverable hydrocarbons have been recovered. The burning of the char is also controlled based on the temperature of the oil shale in-situ, the temperature of the gases retuning to the surface from the oil shale and the carbon dioxide in the gases returning to the surface.

This invention discloses an automatic balance and distribution method for pressure of master pipes of parallel operating boilers, which collects and computes volumes of steam equipment and output volume after PID adjustment according to the pressure of a master pipe then sends them to a boiler load distributing module to distribute them to the boilers in terms of a rule, which control burning according to the distributed flow and control the actual flow equal to the distributed ones, when the steam volume or the pressure of a master pipe is changed, the load distributed to the boiler is changed and the actual one is changed too so as to stabilize pressure of master piles and realize automatic adjustment.

The invention provides a protector for a combustion-supporting fan in a dense barn, which includes a hollow protector body and a box body. The protector body includes a heating chamber end and a combustion-supporting fan end; Between, and a square box connected to the two; the box also includes a heat insulation baffle, which can block the airflow passage of the protector main body when the combustion fan is shut down, and open the airflow passage of the protector main body during operation. When the combustion-supporting fan stops running, the wind force on the heat insulation baffle disappears, and the heat insulation baffle is attached to the side wall of the main body of the box under its own gravity. Since the box is a square box, the heat insulation baffle can be connected with the box body Close fit, the flame in the heating chamber is completely blocked at the heat insulation baffle, which effectively prevents the flame from entering the combustion fan. The protector can control the burning rate of the combustion-supporting fan within 2.4%, effectively solving the technical problem that the combustion-supporting fan is easy to burn out in the prior art.

The invention relates to a light weight acid resistant brick which is characterized in that: the components of the light weight acid resistant brick comprise by weight percentage 35 to 45 percent of diatomite, 30 to 40 percent of pottery clay aggregate and 25 to 30 percent of pulverized fuel ash. The granularity of the diatomite is 120 to 150 meshes, the granularity of the pottery clay aggregate is 8 to 10 meshes and the pulverized fuel ash is screened by a 12-mesh sieve. The preparation method of the light weight acid resistant brick is characterized in that the raw materials are smashed, screened and added with water to make pug which is then milled, molded, dried (under temperature of 60 to 100 DEG C) and burned under temperature of 1100 plus or minus 10 DEG C to obtain finished products. The light weight acid resistant brick of the invention has reasonable and uniform proportioning, strictly controlled burning temperature and beautiful color of the finished products, light weight (the bulk density is 0.8 to 1.0 g/m <3>) and good heat insulating property (the heat conductivity coefficient is 0.3 to 0.4 W/m question mark k), the cost of which is lowered by 30 percent, compared with the prior art.

An elongate, flexible, incendiary device for producing a nearly instantaneous source of flaming combustion along a linear pathway of indeterminate length. The incendiary device is provided in the form of a solid, continuous strand, such as, for example, a ribbon, tape, cord, filament, rope or tube. The device is comprised of means for rapid ignition along the longitudinal axis of the strand in co-linear arrangement with a solid or semi-solid combustible fuel composition. Upon ignition, the device produces flames from its exterior surface for a duration of time suitable for igniting nearby combustible matter. The incendiary device provides a nearly instantaneous line of fire for igniting prescribed fires, controlled burns, and backfires. A method for igniting vegetative matter over an area of land using one or more indeterminate lengths of a rapidly igniting linear incendiary strand.

The invention relates to a fast ash accumulation device for a gasoline engine particulate filter as well as an application method thereof. The fast ash accumulation device comprises a burner, a burnercontrol system, a differential pressure sensor, a temperature sensor, a data acquisition system, a gasoline engine particulate filter and a weighing system. The burner is connected with the gasolineengine particulate filter by virtue of a pipeline, the differential pressure sensor is arranged on the gasoline engine particulate filter, the temperature sensor is arranged at an air inlet end of thegasoline engine particulate filter, a flowmeter is arranged at the air inlet end of the gasoline engine particulate filter, the burner is connected with the burner control system, and the burner control system can control burning working condition of the burner. During test, burning of the burner is controlled, an ash component is dispersed in exhaust airflow of the burner, the ash in the exhaustairflow is filtered by the gasoline engine particulate filter when flowing through the gasoline engine particulate filter, and then an ash accumulation process is completed. The fast ash accumulationdevice provided by the invention is simple in method, steps are easy to operate, ash accumulation rate is high, and process controllability is strong.

The invention relates to a device for controlling the burning time of mosquito-repellent incense. The device comprises a base plate, wherein a bracket used for placing the mosquito-repellent incense is arranged in the base plate, a slide rod capable of sliding along the top of the base plate is arranged on the base plate, and a slide block capable of sliding along the slide rod and being contacted with the mosquito-repellent incense to quench the mosquito-repellent incense is sleeved on the slide rod. The invention aims to overcome the shortcomings in the prior art and provide the device which has a simple structure, regulates the burning time of the mosquito-repellent incense as needed, controls the burning time of the mosquito-repellent incense and disposes the ash of the burnt mosquito-repellent incense in a centralized manner.

A wood or other bio mass fueled appliance is disclosed for maximum efficiency and low cost construction for home, garage, workshop, and barn. Comprised of a vertical cylindrical outside shell (12) outside bottom (16) and outside top (14) enclosing an inside shell (24) inside bottom (28) and inside top (26). Inside shell (24) forming a vertical cylindrical chamber (36) accessed by load door (38) and ash door (40), through which disassembled baffles (32) may pass. A suitable means for igniting fuel in chamber (36) and controlling burn rate by draft regulators (42) and fan limit switches (52). Whereby circular baffles (32) elevated by 90° angle shaped supports (30) suppress the flow of flame and exhaust gases from entering flue (22). Exhaust gases and flame pass by gap (50), directing energy toward the inside surface of inside shell (24) inside bottom (28) and inside top (26). Thus maximizing the efficiency of heat transferred from chamber (36) to the air or fluid in space (18) circulated through ducts (20) by blowers/pumps (48) and directed by air deflectors (46) producing economizing results.

The invention discloses an intelligent humidity control burn and scald treatment system, which comprises an intelligent humidity control host computer, a vacuum pump, a temperature sensor of the intelligent humidity control host computer, a liquid storage bottle, a suction catheter, a drainage dressing layer and a medical membrane, wherein the other end of the suction catheter is communicated with a three-dimensional intercommunication structure of the drainage dressing layer; the humidity sensor is arranged in the drainage dressing layer. A drainage material liquid suction cavity is formed below the medical membrane after an attachment fin is attached to the surface of skin on the outer side of the edge of a burned part of a patient, humidity in the liquid suction cavity is sensed by the humidity sensor, a signal is fed back to a chip humidity control system in the intelligent humidity control host computer, and after the humidity concentration in the liquid suction cavity exceeds a preset value, the vacuum pump works to provide suction powder to suck away liquid in the liquid suction cavity to keep the humidity in the liquid suction cavity at the stable level of 80 to 90 percent by virtue of the liquid storage bottle, the suction catheter, the drainage dressing layer and suckers.

Disclosed is a non-polluting high temperature combustion system which comprises in combination a graphite-lined combustion chamber fueled by a controlled-burn thermite fuel, wherein the fuel burns a temperature of up to 6000 degrees Fahrenheit, wherein the resulting gases are essentially pollution free; the system also include a means of passing a substrate into and out of the combustion chamber and/or a turbine powered by gases from the combustion products, means of injecting a working fluid into the combustion gases upstream of the turbine, a heat recovery means that comprises a geo-thermal hot rock bed, a steam generator utilizing heat from the geo-thermal hot rock bed, a working fluid separation means which comprises a condenser, and means of liquefying the remaining gases for commercial use.

A micro-explosive material is provided. The micro-explosive material can include a carbon nanotube and a solid oxidizer attached to the carbon nanotube. The carbon nanotube with the solid oxidizer attached thereto is operable to burn per an exothermic chemical reaction between the carbon nanotube and the solid oxidizer such that a controlled burn and/or an explosive burn is provided. The micro-explosive material can be used as a heat generator, a gas generator, a micro-thruster, a primer for use with a larger explosive material, and the like.

The system includes gas distribution system, fuel injection system, combustion chamber, ignition system and electric control unit. A super high-energy spark plug containing impulsive discharge energy more than 1 joule is in use for the ignition system. High-energy discharge power source is setup between the spark plug and the electric control unit, which through the discharge power source controls discharging time and energy of spark plug. Comparing prior art, the invention controls burning time of gas mixture inside cylinder directly so as to raise control precision greatly. Reserving features of lean combustion and conflagration of CAI combustion system, the invention realizes burning procedure in energy saving and low discharge.

A tobacco product wrapping, material comprising composite particles is described, the composite particles being obtainable by a method in which an aqueous suspension containing calcium carbonate particles is prepared, and a metal salt comprising an aluminum cation is added. The metal salt is able to form a basic metal component in the suspension; and has a solubility of greater than 9.0 mg/L in water, measured at the pH value of the prepared suspension and at a temperature of 20° C. The invention further relates to a method for the production of the tobacco product wrapping material, the use of such tobacco product wrapping material for the production of tobacco products, and the tobacco products produced with the tobacco product wrapping material.

A system and method of controlling and monitoring a cementing process injecting a cement slurry down a well that causes a return of a drilling fluid includes a first and second flowmeters disposed in the primary return conduit configured to generate a flow rate measurements of the returned drilling fluid, a first control valve receiving control signals from a microprocessor to regulate conducting the returned drilling fluid to a reservoir, a choke valve disposed downstream from the first and second flowmeters receiving control signals from a microprocessor to regulate diverting the returned drilling fluid in the primary return conduit in response to a detection of the presence of gas in the returned drilling fluid, and a mud-gas separator disposed in the primary return conduit configured to receive the diverted drilling fluid and separate the diverted drilling fluid into a mud component for return to the reservoir and a gas component for controlled burn off.

The invention relates to the field of macromolecules, in particular to a manufacture method for an electric conduction dust-free health care carbon granule. The method includes the following steps: pre-processing raw materials: placing plant raw materials into a microwave vacuum tank, vacuumizing to a vacuum degree as -0.002MPa to -0.001MPa, and conducting microwave processing; drying, pre-carbonizing, carbonizing, calcining and cooling the obtained plant raw materials after the pre-processing of the raw materials sequentially, controlling burning to raise the temperature to 700-750 DEG C or 900-1000 DEG C at the speed of 5-15 DEG C/min, keeping the temperature for 40-80 mins, raising the temperature to 1000-1500 DEG C or 1600-1800 DEG C at the speed of 5-15 DEG C/min, keeping the temperature for 2-8 h, cooling to the temperature of 300-400 DEG C at the speed of 18-25 DEG C/min, and cooling to the room temperature along with a furnace to obtain preliminary carbon; soaking: placing the preliminary carbon into a solution with acid content as 3-5wt%, soaking for 20-40 min, then washing with deionized water till pH of the carbon is neutral; microwave processing: conducting microwave processing on substances obtained in the step (3); and manufacturing the granule. The granule obtained through the method does not contain dust or impurities, is good in antistatic property and has a health care function.

The invention belongs to the technical field of forestry, and in particular relates to a method for afforesting on a cutover land. The method comprises the following process flows: branch cleaning; central rope distributing in a vertical central zone; vertical afforestation zone divisiding and plant position administrating; chemical grass controlling; hole clearing and digging; fertilizer mixing; surface soil backfilling for forming mounds; afforesting; and young forest administrating. The method can be used for replacing the conventional control burning afforestation method, avoiding causing a serious consequence that the original ecology of a forest land is destroyed by control burning afforestation, realizing no control burning, minimum tillage and no tillage of the modern ecologic forests, and therefore, the method is an essential technical method for realizing the sustainable development of the forestry.