24 results about "Direct combustion" patented technology

The application discloses a kind of lost foam casting tail gas electric heating combustion processing device, air inlet pipeline, with the tail gas discharge port of lost foam casting production line is sealed connection by flange, for the treatment gas generated in casting process is transported to pretreatment module;While pipeline inner wall is equipped with anticorrosive coating and guide vane;Pretreatment module is connected with the outlet end of air inlet pipeline and the air inlet end of direct combustion module, for dust removal to treatment gas;Heat recovery module and the outlet end of direct combustion module and the air inlet end of deep treatment module are detachably connected by flange, for recovering high-temperature tail gas waste heat discharged by direct combustion module and realizing energy recycling.The application has the beneficial effects of ensuring gas emission, reducing heat exchange efficiency decay, reducing maintenance energy consumption, reducing dust deposition and pressure loss, prolonging equipment service life, low manufacturing cost, not easy to damage and simple maintenance operation.

The application discloses a selective catalytic reduction flue gas heating device, which comprises a flue gas transmission main line and a combustion furnace chamber, the output end of the combustion furnace chamber is inserted into the flue gas transmission main line, a furnace chamber collector and a burner are arranged in the combustion furnace chamber, a control valve is arranged at the input end of the flue gas transmission main line, a main line collector is arranged in the flue gas transmission main line, and the heating device further comprises a collection system, a data analysis system, a control module and a heater. The selective catalytic reduction injection pipe is directly connected to the obliquely-inserted combustion furnace chamber, is used for direct combustion of the burner, the high-temperature flue gas generated by combustion is mixed with the flue gas of the main line of the internal combustion engine to improve the flue gas temperature of the internal combustion engine, the prepared flue gas heating device is compact in structure, convenient to arrange, simple in preparation process, low in cost, convenient to maintain, can adjust the power of the burner according to different exhaust pipe diameters, and is high in thermal efficiency and economic benefits.

The application belongs to the field of environmental engineering and water treatment technology, and specifically discloses a self-nutrition functional type of agroforestry biomass bottom slag carrier for rapidly starting biofilm growth and application thereof. The carrier takes the solid residue bottom slag after direct combustion of agroforestry biomass in a power plant as raw material, continuously and stably releases multiple key elements for microbial growth such as Ca, K, Mg and P in a water environment, significantly promotes the adhesion of microorganisms and the formation of biofilm, and can form a biofilm with a thickness greater than 5 μm on the 27th day under extremely poor nutrition conditions, which is significantly better than a traditional volcanic rock carrier. The heavy metal leaching concentration of the carrier in the water body meets the standard requirements of the Surface Water Environmental Quality Standard (GB 3838-2002), and the environmental safety is good. The application realizes the resource utilization of agroforestry waste, and provides an economic, efficient and green carrier material for the rapid start and stable operation of the biofilm process in poor nutrition water bodies.

The utility model discloses a kind of biomass direct combustion hot blast furnace suitable for bundling straw, it is related to the technical field of hot blast furnace, solve the strict requirement of current hot air drying furnace to the moisture content of bundle straw fuel, furnace door is prone to return fire to feeding device when feeding, resulting in the ignition of biomass fuel on feeding device, cause safety hazard, heat loss in combustion chamber when feeding, difficult to monitor the combustion situation in furnace, inconvenient maintenance and other problems, including closed windproof lifting door, fireproof heat-insulating lifting door and slope section closed feeding machine, slope section closed feeding machine realizes feeding by closed windproof lifting door and fireproof lifting door in turn after moving material by feeding trolley, fireproof lifting door and closed windproof lifting door interval open and close, mixed combustion chamber always maintains negative pressure state according to feeding stroke requirement, avoid heat loss of temperature overflow in furnace, and mixed combustion chamber internal flame returns fire to slope section closed feeding machine via integrated pouring feeding port, cause safety accident;Simultaneously reduce the risk of manual participation.

The application discloses an ammonia oxidation reaction waste gas treatment method and system, and the treatment system comprises a water absorption tower, a deamination tower, a direct combustion furnace, a waste heat steam boiler, a preheating heat exchanger, a denitration reactor and a tail gas heat exchanger. The treatment method comprises the following steps: absorbing ammonia gas in waste gas through the water absorption tower, reducing the ammonia concentration of waste gas entering the direct combustion furnace and reducing the dilution air consumption of the direct combustion furnace; absorbing liquid enters the deamination tower to desorb ammonia gas, and the ammonia gas is injected into the direct combustion furnace as fuel gas; high-temperature waste gas firstly passes through the waste heat steam boiler to produce by-product steam, and then enters the preheating heat exchanger to preheat the inlet waste gas of the direct combustion furnace; the waste gas after heat exchange enters the denitration reactor to carry out a denitration reaction; the treated waste gas passes through the tail gas heat exchanger and the circulating water heat exchanger, and then enters the water spray tower to remove a small amount of smoke dust and is discharged; the application effectively reduces the dilution combustion-supporting air supplement and the natural gas consumption, can reduce the treatment waste gas amount of the direct combustion furnace and the denitration reactor, and effectively reduces the equipment investment and the operation energy consumption.

The utility model discloses a flue heat -supplementing direct combustion burner, apply in the heat -supplementing hot -blast furnace technical field, and its technical scheme main points are: a kind of SCR flue heat -supplementing direct combustion burner, including generator body, the burner tube being connected with generator body, gas pipe, combustion gas pipe and heat -supplementing mechanism, the heat -supplementing mechanism includes the circulating pump being fixedly installed in generator body top, the inside of the one end of burner tube being away from generator body is equipped with thread channel, and it has technical effect that: burner tube can generate a lot of heat when working to heat liquid, and heated liquid is provided with power by circulating pump and is returned to circulating pump by backflow pipe one and is sent to the inside of heating sleeve by conveying pipe two, so that heat is brought to gas pipe, combustion gas pipe in the gas that will be entered into generator body by the circulation of liquid, so that the combustion that enters into the inside of generator body is more sufficient.

A furnace comprising a combustion chamber bounded by side walls, the combustion chamber having at least one wall with a combustion air opening to allow air to flow into the combustion chamber for combustion, and a combustion chamber exhaust opening to direct combustion gases out of the combustion chamber, further comprising a combustion air collector connected to the combustion air opening and a combustion air collector opening through which air for combustion enters and is then directed into the combustion air opening, characterized by a secondary air device comprising a channel connected at a first end to the combustion air collector and exiting at a second end in the region of the flue gas collector, so that air from the combustion air collector is directed around the combustion chamber, further comprising a control damper that regulates the amount of air flowing through the channel.depending on the negative pressure in the combustion chamber exhaust opening.

The utility model relates to a kind of bottom pot for liquor brewing and a kind of liquor production direct combustion distillation device, belong to distillation device technical field in liquor production process.The bottom pot in the utility model includes the pot body with pot bottom, the volume space is inside pot body, the edge of pot bottom is connected with the downward extension annular periphery, annular periphery and pot bottom form heating space with lower part opening;The outer wall of annular periphery is provided with the outer wall of sealed connection with pot body, annular periphery and the bottom of outer wall are sealed and connected with annular bottom edge, annular periphery and pot bottom are sealed and connected, annular periphery, outer wall and annular bottom edge form interlayer space, interlayer space and the volume space of pot body are communicated;The inner circumferential wall of annular periphery is fixedly provided with multiple heat exchange tubes, and the axial two ends of each heat exchange tube are respectively communicated with interlayer space correspondingly.The utility model can effectively improve the heating efficiency of bottom pot and the heating uniformity of wine retort, with good energy-saving effect.

A direct-fired incineration system for maleic anhydride plant tail gas, relating to the field of environmentally friendly chemical waste treatment, includes a three-stage incinerator, an ultra-high pressure waste heat boiler, a tail gas preheater, and a chimney. The three-stage incinerator comprises a high-temperature combustion section, a high-temperature oxidation section, and an ultra-clean oxidation section connected sequentially. The outlet of the ultra-clean oxidation section, the flue gas passage of the ultra-high pressure waste heat boiler, the tail gas preheater, and the chimney are connected sequentially. A main burner and an auxiliary burner are located at the top of the high-temperature combustion section. Preheated tail gas flows out of the tail gas outlet of the tail gas preheater and is divided into a first tail gas path, a second tail gas path, and a third tail gas path. The first tail gas path is connected to the high-temperature combustion section, the second tail gas path is connected to the high-temperature oxidation section, and the third tail gas path is connected to the ultra-clean oxidation section. This system enables tail gas incineration treatment of maleic anhydride plants using the n-butane process and hydrogen cyanide plants. The incineration system is highly efficient and energy-saving, eliminating the need for SNCR or SCR denitrification devices and ensuring low nitrogen emissions from the flue gas.

This invention discloses an adaptive regulation system and method for direct combustion heating of biogas in a waste incinerator, relating to the field of regulation system technology. The construction module builds a risk network based on nodes and causal relationships in dynamic combustion risk factors. Weighted edges represent the propagation paths between different risk factors and their coupling influence on the overall operating state of the incinerator. After obtaining the risk network, the central decision module performs scenario segmentation, assesses sensitive nodes and critical propagation paths of the risk network under different scenarios, and resolves conflicts between scenarios using a multi-objective optimization algorithm to generate a dynamic regulation strategy framework. This framework is then decomposed into a set of parameter regulation instructions and sent to the execution layer. This regulation system enhances the adaptive control capability of the direct combustion heating process of biogas in the incinerator, reducing the risk of environmental exceedances or equipment damage caused by unstable combustion, while also optimizing energy utilization efficiency.

The application provides a coal-fired unit biomass direct combustion coupled power generation system and method. The system of the application comprises a feeding system, a mixing system and a combustion system, the mixing system comprises a mixer and a mixing flue, the mixer is connected with the feeding system, the mixing flue is connected with the mixer through a boiler flue fan, the combustion system comprises a furnace, a pulverized coal burner and a biomass burner are installed on the furnace, an outlet end of the furnace is connected with an induced draft fan, an inlet end of the mixing flue is connected with the induced draft fan through a cold flue and connected with the furnace through a hot flue, and an outlet end of the mixer is connected with the biomass burner through a powder pipe. The system and method of the application adopt the boiler flue to dry the biomass raw material to make it fully burn, the biomass raw material directly enters the separate biomass burner and does not burn with the pulverized coal, and the system has the advantages of simple structure, simple operation, full combustion, low energy consumption and the like, and has a significant promoting effect on the efficiency increase and carbon reduction of the thermal power unit.

The utility model discloses a multifunctional outdoor stove relates to outdoor stove technical field, including stove frame, and the one side of stove frame is provided with stove support, and the frame of stove frame is portable handle, windproof cylinder, windproof cylinder sets up in stove frame inside and its one end cylinder mouth corresponds stove support, the middle part of windproof cylinder is equipped with the partition, the outer peripheral wall surface of windproof cylinder can be as the article placing surface, stove head, stove head sets up in the one side board surface of partition close stove support and with stove support between and defines gas mode function area, carbon net, carbon net sets up in the one side board surface of partition away from stove support, the article placing net, the article placing net can place on stove frame and corresponds windproof cylinder another end cylinder mouth and with carbon net between and defines direct combustion mode function area. The utility model can realize one stove multi -use, satisfy cooking, dining, accomodate many scene demand, reduce the burden of user carrying many equipment.

The utility model relates to a kind of wine retort heating device and a kind of white spirit production direct combustion distillation device, belong to distillation device technical field in white spirit production process.The utility model forms the hearth of full-closed type in the lower area of bottom pot, by fan to ensure combustion efficiency and avoid particulate matter to exceed standard by wind entering hearth in outdoor;Reflection plate utilizes mirror principle and reflects heat radiation to the bottom of bottom pot, so that heat is redistributed, reaches the effect that water in whole bottom pot boils consistently, steam rises consistently, is favorable to the consistency and flatness of upper retort smoke, while further saving gas consumption.Bottom pot outside adopts annular flue arrangement, and the position relationship of smoke gas inlet, smoke gas outlet of annular flue is relative to the position relationship of plugging block arrangement, so that high-temperature flue gas in hearth is forced to be uniformly discharged after surrounding bottom pot a circle, so that bottom pot can make full use of flue gas waste heat, produce more steam, heat in pot is more uniform, while forming greater energy-saving effect.

This invention belongs to the field of waste gas treatment technology, specifically disclosing a flare gas incineration treatment system for EVA production. The system includes a daily gas buffer tank and an emergency gas buffer tank, each connected in series with a liquid separator, a water seal tank, and a cooler. The gas outlets of the two coolers are connected to an incinerator, and the flue gas outlet of the incinerator is connected in series with an induced draft fan and a chimney. Addressing the safety risks, such as explosions, posed by direct combustion of flare gas generated during EVA production, this invention achieves safe, efficient, and compliant emissions of flare gas by classifying and collecting the flare gas, separating it into liquids, applying a water seal, pre-treating it with cooling, and precisely monitoring key parameters, combined with efficient incineration in an incinerator. This solves the problem that direct combustion of flare gas containing hydrocarbons such as ethylene, vinyl acetate, and organic solvents generated during EVA production can easily lead to explosions or flameout accidents due to gas composition imbalance.

The utility model discloses a kind of multilayer automatic control turning plate baking pool, belong to nut drying technical field, including cabinet, the frame body is equipped in the cabinet, the frame body upper end is connected with turning plate oven, the turning plate oven lower end is communicated with ventilation cloth wind box, ventilation cloth wind box one side is communicated with direct combustion hot blast furnace, ventilation cloth wind box other side is communicated with collecting device, and direct combustion hot blast furnace and collecting device are located in the cabinet outside.The utility model can realize multilayer arrangement, automatic turning plate control, hot air uniform distribution and have the baking pool structure of efficient collection function.

The application provides a coal in-situ controllable direct combustion energy extraction-gasification combined mining method and system. A directional drilling bit is installed at the end of an air inlet pipe. Geological structures such as fracture zones and faults are identified during drilling. The coal seam gangue condition is obtained through backflow of the slag. The air inlet pipe is driven to move in the coal seam to control the oxidant content of the oxygen release section in different regions and control the combustion process. Secondly, after the coal in the horizontal well is completely combusted to form a combustion empty area, the drilling direction is adjusted. Oxygen-rich oxidants or protective gases for controlling the intense combustion of coal are provided for the combustion of coal in any direction of the coal seam. The coal far away from the horizontal well continues to combust to form a new combustion area, thereby reducing the arrangement of the horizontal well and the horizontal pipeline. Further, the full-range mining in the coal seam can be realized through one horizontal well, without the need to open another horizontal well. The full combustion and mining of the coal in each direction of the coal seam can be fully ensured, and the efficiency of the in-situ coal mining is effectively improved.

This invention relates to the field of ammonia fuel cell technology and discloses an ammonia solid oxide fuel cell start-up system and its start-up method. The system includes: an ammonia / start-up preheater, a tail gas / start-up burner, a feed heat exchanger, an anode, a cathode, and an air preheater. The ammonia / start-up preheater has an ammonia inlet. The ammonia / start-up preheater is connected to the feed heat exchanger and the tail gas / start-up burner. The feed heat exchanger is connected to the anode and the tail gas / start-up burner. The air preheater is connected to the cathode and the tail gas / start-up burner. The start-up system provided by this invention uses pure ammonia as fuel for direct combustion without introducing other fuels, greatly reducing carbon emissions. Simultaneously, the start-up burner and tail gas burner are designed as a single unit, fully utilizing the heat generated by hydrogen combustion in the anode tail gas to accelerate the combustion of pure ammonia. The start-up combustion function is achieved in the tail gas burner, reducing equipment requirements and saving fuel.

The present application relates to the technical field of ore smelting furnace (calcium carbide), and discloses a six-closed-loop full-dimension ore smelting furnace (calcium carbide) production new process, which is suitable for calcium carbide plants, ferroalloy plants, steel plants, cement plants and power plants of various high-energy-consuming enterprises, characterized in that six industrial closed-loop systems of raw material intelligent closed loop, process short-flow closed loop, energy cascade closed loop, intelligent manufacturing closed loop, resource full utilization closed loop and cross-industry coupling closed loop are constructed as a whole, the direct combustion mode of raw coal is abandoned, and the whole process is based on the internal heat dry distillation of raw coal as the front core process. The six-closed-loop full-dimension ore smelting furnace (calcium carbide) production new process reduces the environmental protection treatment cost and the operating pressure, cancels the direct combustion process of raw coal from the production source, does not need to construct and operate the desulfurization and denitrification related equipment, completely saves the long-term expenditure such as supporting reagents, equipment maintenance and full-time operation and maintenance personnel, effectively reduces the enterprise operation cost, and completely releases the environmental protection control risk.

The application discloses a TO direct combustion furnace, and relates to the field of direct combustion furnaces, which comprises a furnace body, a heat exchanger arranged in the furnace body, an air inlet matched with the heat exchanger arranged on the furnace body, a metal bellows connected to one side of the heat exchanger, a high-temperature furnace chamber connected to one end of the metal bellows, a combustion machine arranged on one side of the furnace body, and an L-shaped pipe for a waste gas inlet fixedly arranged on the top of the furnace body. The first filter screen can block and filter solid particles in organic waste gas, and the solid particles can fall into the storage box through the mesh and be stored on the second filter screen, so that the storage box can be disassembled by pulling the handle and cooperating the sliding groove and the sliding block, and the solid particles stored on the second filter screen can be discharged, thereby reducing the solid particles entering the equipment and improving the stability during use.

The present application relates to a kind of solid waste-based heat storage dynamic response system and energy efficiency optimization method, belong to solid waste resource utilization and new energy technology field.The present application is mineralized and reconstructed into core-shell microcapsule with axial hole by solid waste carrier: interface layer between core-shell is formed by rare earth compound, metal oxide is compounded, on the one hand, it acts as heat solid lubricant, on the other hand, it provides catalytic activation condition, so that methane direct combustion or methanol steam reforming reaction is more efficient;By specific arrangement, channel type photo-thermal-chemical coupling reactor is constructed, realize light energy-heat energy conversion and subsequent phase change heat storage, sulfide catalytic conversion in flue gas and other series of coupling reactions, greatly improve energy conversion efficiency.At the same time, by introducing superelastic alloy net and establishing multi-field coupling balance equation, ensure that stress is uniformly distributed and structure stability of material in dynamic environment, so as to comprehensively improve the dynamic response performance and energy efficiency level of solid waste-based heat storage.

The utility model relates to an auxiliary device for hot galvanizing furnace area direct combustion section furnace bottom roll belongs to metallurgical industry equipment maintenance equipment technical field. Technical scheme is: containing support frame (1), bearing (2), U-shaped pipe card (3), nut A (5) and bolt (7), U-shaped pipe card (3) are two, two U-shaped pipe card (3) symmetry fixed in support frame (1) both ends, bearing (2) are two groups, two groups of bearings (2) are located between two U-shaped pipe card (3), the distance between two groups of bearings (2) and the size of furnace bottom roll axle cooperate with each other, each group bearing (2) is rotatably connected on a bolt (7) respectively, two bolts (7) are fixed on support frame (1) through a nut A (5) respectively. The utility model has the beneficial effects that when the bearing in direct combustion section furnace bottom roll bearing seat is damaged, the normal rotation of furnace bottom roll can be ensured, the normal production is not affected, and when parking overhauls for a long time, it is completely treated again.

This invention relates to the field of heating device technology, and in particular to an outdoor water-based heating device, comprising: a main unit and a heating air unit; the front end of the main unit has a receiving port, the heating air unit is disposed in the receiving port, and the receiving port has a connection port; the main unit internally comprises a water circuit unit, a heating unit, a control unit, and a power supply unit, the heating unit being used to heat the water circuit unit, and the water circuit unit and the heating air unit are circulatedly connected; wherein, the main unit internally also comprises a heat recovery unit, the heat recovery unit being located above the heating unit. This invention, by employing a water-based circulating heating method, compared to the traditional gas heater's direct combustion heating of the air, can provide humid and comfortable warm air, effectively solving the air dryness problem caused by traditional heaters.

This invention relates to the field of fuel technology, specifically to a method for preparing a novel coal-based water composite fuel. The method includes: preparing an oil phase; preparing a mixed emulsion; and preparing the coal-based water composite fuel. This invention obtains a coal-based water composite fuel by mixing coal-based liquid wax No. 2 with a compound emulsifier, then emulsifying it with water, and finally mixing and maturing it with a coal-saving combustion aid. On the one hand, this invention solves the problems of traditional fossil fuels, such as reliance on petroleum resources, high sulfur and nitrogen impurity content, and excessive pollutant emissions during combustion. It also avoids the limitations of biomass fuels, such as low calorific value and easy coking, and synthetic fuels, such as difficult storage and transportation and high costs. On the other hand, it solves the problems of mediocre ignition performance and difficulty in controlling combustion temperature when coal-based liquid wax is directly burned, failing to utilize the "micro-explosion effect" to improve combustion efficiency, thus fully releasing the fuel potential of coal-based raw materials.