31results about How to "Extended burn time" patented technology

The invention belongs to the technical field of carbon black reaction furnaces, and discloses a carbon black reaction furnace capable of improving quality and efficiency, which comprises a base, a reaction furnace body is fixedly mounted at the top of the base, the reaction furnace body comprises a plurality of groups of throat pipe sections and combustion chambers, and the throat pipe sections and the combustion chambers are connected through flanges. One end of the combustion chamber is fixedly connected with an air supplementing pipe, an additive supplementing pipe and a fuel gas supplementing pipe, and one end of each throat pipe section is fixedly connected with a discharging pipe. When the combustion speed is larger than the oil injection speed, combustion flames start to move upwards and get close to the oil injection pipe and the heat conduction rod, at the moment, the temperature of the heat conduction rod is increased abnormally, thermal expansion liquid in a containing groove is heated, the volume of the thermal expansion liquid is expanded, a piston, a connecting block and a sealing sleeve are pushed upwards, and therefore the area, covering a through groove, of the sealing sleeve is reduced; the effective oil passing area of the through groove is increased, the oil spraying speed of the device is increased, and therefore the tempering phenomenon is avoided.

The invention discloses a method and a device for reducing firing heat consumption by using coal gangue, and relates to the technical field of cement production, the device for reducing firing heat consumption comprises a base, a kiln head seat, a kiln tail seat, a rotary kiln, a driving motor and a feeding mechanism, the kiln head seat is fixedly connected with the base, the kiln tail seat is fixedly connected with the base, and the feeding mechanism is fixedly connected with the rotary kiln. The kiln head seat and the kiln tail seat are sequentially arranged at the two ends of the rotary kiln in the material conveying direction, the driving motor is fixedly connected with the base, the output end of the driving motor is in transmission connection with the rotary kiln, the rotary kiln is rotationally connected with the base, the two ends of the rotary kiln are rotationally connected with the kiln head seat and the kiln tail seat respectively, and the feeding mechanism is fixedly connected with the kiln head seat. The feeding mechanism is used for feeding coal gangue into the rotary kiln.

The invention relates to the field of coatings, and particularly discloses a two-component fireproof heat-insulating coating and a preparation method thereof. The coating provided by the invention comprises an agent A and an agent B, wherein the agent A comprises the following raw materials in parts by weight: 10-20 parts of bisphenol A epoxy resin, 40-50 parts of an intumescent flame retardant, 2-4 parts of glass fibers, 2-4 parts of needle-like wollastonite, 3-7 parts of fumed silica, 10-20 parts of a diluent, 0.3-0.5 part of a flatting agent and 8-15 parts of epoxy polyhedral oligomeric silsesquioxane modified glass fibers; the agent B is prepared from the following raw materials in parts by weight: 10 to 20 parts of polyamide curing agent, 10 to 15 parts of diluent and 7 to 10 parts of amino cage type polysilsesquioxane modified needle-like wollastonite. The coating disclosed by the invention is good in fireproof and heat-insulating effects and high in adhesive force.

The invention provides a fireproof sealed cargo hold and a design method thereof, and belongs to the field of helicopter body structure function design, the method comprises the following steps: 1, an interior trim, a floor, a cargo hold door, a front frame channel door and a rear frame channel door enclose a fireproof sealed boundary; (2) fireproof sealing design of a front frame channel door is carried out, and a fireproof and fire-resistant test is completed; (3) fireproof sealing design of a rear frame channel door is carried out, and a fireproof and fire-resistant test is completed; (4) fireproof sealing design of a cargo hold door is carried out, and a fireproof and fire-resistant test is completed; and (5) air convection path design in a cargo hold is carried out. The cargo hold has fireproof sealing performance and can contain flames in the cargo hold, so that the flames cannot reach a passenger cabin and a tail beam; in the flight process of the aircraft, under the action of aerodynamic load, the cargo hold door is reliably sealed, and new oxygen is prevented from entering the cargo hold, so that the flame combustion time is prevented from being increased; interior trims and structural parts in the cargo hold are strictly tested according to airworthiness clauses, it is proved that the requirement for 5-minute fire resistance is met, and the fireproof sealing performance of the cargo hold can be guaranteed.

The novel environment-friendly torch comprises a torch body, a combustion part and a supporting part are arranged on the torch body, the combustion part is located above the supporting part, an air outlet is formed in the bottom of the combustion part, an air inlet, an air extracting pump and an air collecting chamber are arranged on the supporting part, and the air inlet, the air outlet and the air collecting chamber are communicated with an air collecting opening. The gas collecting chamber is electrically connected with the gas collecting opening and the sucking pump, natural hydrate fuel is placed at the bottom of the gas collecting chamber, the space between the bottom of the gas collecting chamber and the supporting part is filled with the thermal insulation layer, the fuel is decomposed into methane in the gas collecting chamber, and the combustion effect can be improved by mixing the methane and air through the sucking pump. Compared with fuel such as propane, the natural gas hydrate is small in size and long in combustion time, compared with hydrogen fuel, the natural gas hydrate only needs a low-pressure condition and is better in safety, more importantly, the fuel is rich in reserves, only a small amount of carbon dioxide and water are generated after combustion, and the natural gas hydrate fuel is environmentally friendly, low in manufacturing and obtaining cost, simple in storage mode and suitable for popularization and application. And the economic benefits of producers are greatly improved.

A firewood-saving stove comprises a stove body, a stove pipe is arranged in the stove body, a plurality of gasification through holes are formed in the wall above the stove pipe, a fire grate and an ash box are sequentially arranged at the lower end of the stove pipe, and an integral stove bottom panel is arranged at the lower end of the stove body and used for sealing the stove body. Through holes with straight edges are formed in the left position, the right position and the rear position of the integral furnace bottom panel, and the through holes are communicated with a cavity between the furnace body and the furnace pipe; a baffle plate is arranged at the straight edge of the through hole and is used for limiting the ash box; a plurality of annular grooves are pressed in the center of the whole furnace bottom panel surrounded by the through holes, a plurality of annular cavities are formed between the annular grooves and the outer bottom face of an ash box placed on the whole furnace bottom panel, and a gap is reserved between the upper end of the ash box and the fire grate. According to the utility model, the integral furnace bottom panel is welded with the furnace body, so that the primary air inlet quantity flowing into the fire grate and the secondary air inlet quantity flowing above the furnace pipe can be more accurately and effectively controlled according to the opening and closing size of the ash box, the combustion is sufficient, the pollution to the environment is reduced, and the operation environment of cooking personnel is better.

The present invention relates to the technical field of hot blast furnace equipment, and provides a biomass pellet low-temperature hot blast furnace, the hot blast furnace comprising: a fuel bin, which is provided with an upper material limit and a lower material limit, and an observation port is provided on the outside, and the material is automatically intermittently discharged by matching the change of the output hot air through the discharge valve on the left; the discharge port is located at the intersection of the bottom of the fuel bin and the combustion chamber at the bottom of the hot blast furnace, and is used to control the fuel to enter the specific position inside the combustion chamber. The present invention minimizes the floor space by means of a built-in fuel bin, and is suitable for the site requirements of different customers without the need for an additional fuel bin; and the valve-type control of discharge prevents fuel accumulation, makes the combustion more complete, prolongs the combustion time and improves the utilization rate; in addition, the combustion products generated by burning wood pellets or rice husk pellets can be effectively removed from the combustion chamber through a chain-type ash discharge structure; finally, the vulnerable parts in the high-temperature zone of the exchanger are small in size and easy to assemble and disassemble, which effectively reduces consumables and saves maintenance costs.

This invention provides a biomass fuel and its preparation method, belonging to the field of waste utilization technology. This invention mixes different waste materials to prepare biomass raw materials, and simultaneously utilizes microbial strains to transform the organic flame retardants contained in the waste raw materials into new flammable agents through biochemical reactions. The prepared biomass fuel has high calorific value, low smoke and dust, and excellent combustion performance, making rational use of various waste materials, and is environmentally friendly, efficient, and energy-saving. The results of the embodiments show that the biomass fuel prepared by this invention has a calorific value of 35.6 MJ / kg, a calorific value of 4100 cal / g, a combustion efficiency of 99.1%, and low smoke and dust.

The utility model relates to the technical field of waste gas recovery treatment, and discloses a VOCs waste gas recovery structure of a cyclohexanol ketone device, which comprises a bottom plate and a connecting belt, the rear side of the top of the bottom plate is fixedly connected with a fixing frame, and the top of the fixing frame is fixedly connected with a driving motor. The output end of the driving motor penetrates through the fixing frame and is fixedly connected with a driving belt wheel, the bottom of the fixing frame is rotationally connected with a driven belt wheel, the driven belt wheel is in transmission connection with the driving belt wheel through the connecting belt, and fan blades are installed at the bottom of the driven belt wheel. The bottom of the driving belt wheel is fixedly connected with a worm. According to the waste gas combustion furnace, air is blown downwards, and the worm wheel rotates to drive the flapping plate to rotate, so that waste gas is flapped, the combustion time of the waste gas in the combustion furnace is prolonged, and the situation that combustion and decomposition are not thorough due to the fact that the flowing speed of the waste gas is high is avoided.

The utility model discloses an electromagnetic high-temperature moxibustion oil fume catalytic reactor, which relates to the field of moxibustion devices and comprises a shell, a catalytic bin, a filter layer and an electromagnetic heating ring. A combustion bin, a first smoke inlet and a first smoke outlet are formed in the shell, wherein the first smoke inlet and the first smoke outlet are communicated with the combustion bin. The catalysis bin is arranged in the combustion bin, a reaction cavity is formed in the catalysis bin, and a catalyst is contained in the reaction cavity; the catalysis bin is provided with a second smoke outlet communicated with the first smoke outlet. An interlayer is arranged between the catalytic bin and the shell; the filter layer is mounted at the interlayer; the catalysis bin is provided with a second smoke inlet communicated with the interlayer. And the electromagnetic heating ring sleeves the outer side of the shell and is used for heating the interior of the combustion bin. Particulate matters in the oil smoke mixture can be intercepted through the filter layer, and the intercepted particulate matters can be burned through electromagnetic heating. And the oil fume mixture filtered by the filter layer can be further purified through the catalyst.

The grate incinerator comprises an incinerator body, a combustion chamber and a secondary smoke combustion chamber are arranged in the incinerator body, the combustion chamber is communicated with the secondary smoke combustion chamber through a high-temperature smoke exhaust port device, and the high-temperature smoke exhaust port device is arranged on an upper cover plate of the tail end wall of the combustion chamber or two side wall corners of the tail end upper cover plate of the combustion chamber. A high-temperature smoke exhaust port device is arranged in the combustion chamber, an air gate is arranged on the high-temperature smoke exhaust port device and can be closed and opened through rotating handles on the two sides, and when the air gate is opened, the combustion chamber is communicated with the secondary smoke combustion chamber through the high-temperature smoke exhaust port device. After the secondary flue gas combustion chamber is combined to thoroughly combust waste gas and waste liquid, and the desulfurization, denitrification and adsorption tower, the cyclone separation device and the cloth bag dust removal equipment are comprehensively innovated, the flue gas emission is superior to the national standard.

The invention relates to the technical field of transformers, and discloses a power electrical transformer with a lightning protection function, the power electrical transformer comprises a transformer body, and a lightning rod is mounted in the middle of the top of the transformer body; heat dissipation assemblies used for assisting cooling are installed on the inner walls of the two sides of the transformer body, each heat dissipation assembly comprises a heat dissipation fin plate and a heat dissipation box, the heat dissipation boxes are installed on the inner walls of the two sides of the transformer body, and the heat dissipation fin plates are installed on the sides, away from the transformer body, of the heat dissipation boxes in a linear arrangement mode; a fan for dissipating heat through wind power is installed on one side of the heat dissipation box, and a cooling assembly for cooling through liquid cooling is installed in the heat dissipation box. By means of the flame-retardant assembly and the blocking assembly, the oxygen content in the transformer body can be reduced, the fire extinguishing effect is affected, arc extinguishing can be conducted through impact of sulfur hexafluoride gas on electric arcs, and it is avoided that combustion of the transformer body is aggravated due to arc discharge, and larger loss is caused.

The present invention relates to the technical field of liquid desulfurization slag remover, and specifically discloses a high-efficiency liquid desulfurization slag remover, wherein the raw materials include by mass: 5-15 parts of limestone powder, 0.1-1 parts of catalyst, 20-25 parts of oleic acid, 1-3 parts of sodium hydroxide, 0.1-1 parts of yttrium chloride, 0.0403-0.1550 parts of sodium fluoride, 0.0131-0.3830 parts of sodium dichromate, 1-3 parts of ethylenediamine, 2-5 parts of methyl acrylate, 5-15 parts of sodium tripolyphosphate, and 20-35 parts of sodium chlorite. The present invention also discloses a preparation method of the above-mentioned high-efficiency liquid desulfurization slag remover. The present invention has no odor, no irritating smell, and no polluting components to the body and the environment; it is not easy to block the nozzle, and it can not only effectively remove the slag body in the softened dust in the smoke, prevent coking, effectively reduce energy consumption and cost, and significantly improve the efficiency of the entire desulfurization system.

The embodiment of the utility model relates to an assembly type boiler air pre-heater anti-blocking device, and belongs to the technical field of boiler environmental protection. The assembled boiler air pre-heater anti-blocking device comprises a reheat steam main pipe, the reheat steam main pipe is sequentially connected with a primary air bellow and a primary air main pipe, and first reheaters are arranged in the primary air bellow and the primary air main pipe; the primary air mother pipe is connected with an air feeder, a second reheater is arranged in an outlet air box of the air feeder, the air feeder is further connected with a body drain flash tank of the steam turbine, and the body drain flash tank is connected with a condenser. According to the anti-blocking device provided by the embodiment of the invention, the air pre-heater is prevented from being blocked by ammonium hydrogen sulfate, the differential pressure of the air pre-heater is controlled, the input rate of a soot blower is reduced, steam is saved, and the service life of the air pre-heater is prolonged.

The present application relates to the technical field of craft candles, and specifically discloses a scented candle and a preparation method thereof, a scented candle, which includes the following raw materials in parts by weight: 15-25 parts of soybean wax, 25-35 parts of natural beeswax, 15-20 parts of essence microcapsules, and 1-3 parts of polyethylene wax; the essence microcapsules are obtained by embedding plant essences in hydroxypropyl β-cyclodextrin. The scented candle obtained in the present application has good stability, is stored at 35°C for 24 hours, does not undergo deformation and color change, and has a minimum carbon black index of 12.0%, low carbon black pollution, and a burning time of 32-34 hours, which prolongs the burning time of the scented candle and improves the utilization rate of the scented candle. The aroma release concentrations after extinguishing for 1 hour, 8 hours, 24 hours, and 48 hours are 46.3μg / L, 30.5μg / L, 22.3μg / L, and 12.6μg / L, which improves the aroma persistence of the scented candle.

The present invention relates to the field of degradable materials, and provides a biodegradable plastic product reinforcement material and a preparation method thereof, which is made of the following raw materials: polylactic acid modified by a shelled flame retardant polymer, a dandelion-shaped flame retardant, starch, a plasticizer, microcrystalline cellulose, polyhydroxybutyrate, an antioxidant, and a dispersant. Preparation method: First, the polylactic acid modified by a shelled flame retardant polymer, the dandelion-shaped flame retardant, the dispersant and the plasticizer are uniformly mixed by a melt blending method; then, starch, microcrystalline cellulose, antioxidant and polyhydroxybutyrate are added; finally, the obtained mixture is introduced into an extrusion film blowing machine, and is formed by hot melt extrusion blow molding technology. The core-shell structure flame retardant polymer and the dandelion-shaped flame retardant of the present invention have excellent flame retardancy, mechanical properties and environmentally friendly degradation characteristics. Therefore, the biodegradable plastic product reinforcement material of the present invention has excellent mechanical properties and flame retardancy, and has a wide range of application value.

The utility model discloses a particle combustion device and relates to the technical field of combustion devices.The particle combustion device comprises a discharging box, a plurality of sliding grooves are formed in the inner wall of the discharging box, and sliding blocks are connected to the inner walls of the sliding grooves in a sliding mode. A handle is pulled to enable a blocking cover to drive a plurality of sliding blocks to move in a sliding groove, a discharging box is opened, then particles are put into the discharging box and fall into a material collecting cavity through the inclination of a discharging plate, a motor is started to enable a rotating shaft to rotate, conveying blades start to move to drive the particles to automatically move, and the particles fall into a combustion box through an adding opening. And then the combustor is started to enable the particles in the combustion box to start to be combusted, so that the particles can be continuously and automatically fed into the combustion box, the labor force is reduced, and meanwhile, the situation that a large number of particles are discharged into the combustion box at a time, so that the particles are not prone to combustion, and the combustion effect is poor and the combustion time is too long is prevented.

The invention relates to the technical field of waste gas treatment, in particular to a VOCS organic waste gas purification system which comprises a pretreatment box, a combustion box, a spraying box, a photolysis box and a condensation box, an access pipe is arranged in the pretreatment box in a sleeved mode, a purification cover is arranged outside the access pipe in a sleeved mode, a preheating cover is arranged outside the purification cover in a sleeved mode, and a combustion engine is fixedly installed at the top of the combustion box. Spoilers are installed in the combustion box in a staggered mode, fixing pipes fixedly sleeve the four corners of the spraying box, the bottoms of the fixing pipes are fixedly connected with moving pipes through hoses, two-way spraying pipes are fixedly installed on the two sides of the moving pipes, a UV lamp tube is installed in the photolysis box, and a condensation pipe is arranged in the condensation box; the VOCs organic waste gas purification system has the beneficial effects that the VOCs organic waste gas purification system is reasonable in structural design, spraying, UV photolysis, condensation and adsorption are ingeniously connected in series into a whole, the advantages and disadvantages of various treatment modes are complemented, the VOCs organic waste gas is subjected to multi-stage purification, the purification effect is greatly improved, and the application range is wide.

A moxibustion cover structure used in a moxibustion device comprises a moxibustion cover and a moxibustion column, the moxibustion column is connected to the middle of the bottom face of the moxibustion cover, a clamping jaw is fixed to the middle of the bottom face of the moxibustion cover, one end of the moxibustion column is inserted into the clamping jaw, and the other end of the moxibustion column extends out of the moxibustion cover. Transverse moxibustion cover through holes are distributed in the side wall of the moxibustion cover at intervals. The moxibustion device has the advantages that the clamping jaw is fixed to the middle of the bottom face of the moxibustion cover, one end of the moxibustion column is inserted into the clamping jaw, the other end of the moxibustion column extends out of the moxibustion cover, the moxibustion column can be directly connected to the moxibustion cover, the insertion structure is simple, manufacturing is convenient, and manufacturing cost is reduced; the moxibustion cover through holes are transversely distributed in the side wall of the moxibustion cover at intervals, so that the air inlet area on the circumference of the moxibustion cover can be increased, the air inlet efficiency of an inner cavity is improved, the combustion time of the moxibustion column is prolonged, and the moxibustion column is prevented from being extinguished due to oxygen deficiency; the clamping jaws are directly fixed to the bottom face of the moxibustion cover, a magnet and a magnetic conductive needle are omitted, the structure is more compact, and the moxibustion column is convenient to use and replace.

The present invention relates to the technical field of boilers, and in particular to a coal powder combustion system based on hydrogen energy ignition and stable combustion, comprising a pipeline and a hydrogen fuel burner, the hydrogen fuel burner is slidably mounted on the inner side of the pipeline, a position-adjustable central combustion chamber is mounted on the outer side of one end of the hydrogen fuel burner, a central combustion chamber pull rod is mounted on the outer side of the position-adjustable central combustion chamber, and the other end of the central combustion chamber pull rod passes through the pipeline, a coal powder concentration ring is mounted on the inner side of the pipeline, and a central reinforcement concentration ring is mounted on the inner side of the position-adjustable central combustion chamber. In the present invention, carbon-free hydrogen fuel is used as an ignition and stable combustion medium, and ignition and stable combustion are achieved by adjusting the positions of the hydrogen energy burner and the central combustion chamber; compared with fuel oil, hydrogen fuel has a fast chemical reaction rate and high calorific value, which can shorten the combustion time, thereby reducing the size of the coal powder burner, and at the same time accelerates the combustion of coal powder in the ignition and stable combustion stages, shortens the combustion time of coal powder, and reduces fuel-type and fast-type NOx emissions.

The invention relates to the field of moxa stick preparation, in particular to a flame-resistant moxa stick and a preparation method thereof. The invention provides a flame-resistant moxa stick which is composed of the following components in parts by weight: 20-45 parts of folium artemisiae argyi; 50 to 75 parts of moxa floss; 1-2 parts of angelica dahurica; 0.5-1 part of unprocessed radix aconiti; and 2-5 parts of beeswax. The invention further provides a preparation method of the flame-resistant moxa stick. The preparation method comprises the following process steps: S1, preparing the moxa stick filler; s2, rolling the moxa sticks. The moxa stick prepared by the method is relatively high in density, relatively long in combustion time and relatively low in ash content after combustion, and the filler is relatively low in water content and relatively high in volatile oil content.

The utility model discloses an LF city mud combustion rod which comprises an outer frame, sealing plates are fixed to the front side and the rear side of the outer frame, an inner pipe is arranged in the outer frame, a plurality of sets of outer pipes are arranged on the outer side of the inner pipe, and a filling block is arranged between every two adjacent sets of outer pipes. An outer groove is formed in the outer side wall of the inner pipe, an inner groove is formed in the inner side wall of the inner pipe, and the inner groove and the outer groove are both of a threaded groove structure. The outer pipes and the inner pipes are both of hollow pipe structures, at least five sets of outer pipes are distributed on the outer sides of the inner pipes at equal intervals in an array mode, during internal combustion, firstly, a spiral inner groove structure formed in the inner side of the outer frame can drive gas close to the inner side wall to rotate, and an air hole structure formed in the inner side of the filling block can guarantee internal air circulation; and the inner pipe and the outer pipe are both of a hollow structure, internal gas circulation can be guaranteed, the internal porous structure can improve complete combustion of the combustion rod, and the combustion efficiency is improved.

The invention discloses a long-combustion pulse type clean detonation system and a performance testing method, and relates to the technical field of oil and gas well perforation. The device comprises a test target, a sleeve is installed in the test target, the top of the sleeve is in threaded connection with a sleeve joint, the center position of the sleeve joint is in threaded connection with a pulse detonation grain assembly, and the middle position of the pulse detonation grain assembly is in threaded connection with an ignition plug. The high-combustion-rate propellant and the low-combustion-rate propellant are poured in sequence to form a gradual-change-combustion-rate propelling system, the combustion mode is layer-by-layer combustion, high-combustion-rate pressurization is fast, formation fracturing is facilitated, later low-combustion-rate long-time combustion is formed, formation fracture extension is facilitated, high-combustion-rate and low-combustion-rate alternate combustion is achieved, and multiple pulse type pressure fluctuation is formed after combustion; the combustion time can be prolonged, the seam extending effect can be improved, the combustion reliability can also be improved, the outer shell is a combustible shell, few residues are left after combustion, and it is guaranteed that a shaft is clean.

The invention discloses a method for preparing alternative fuels by utilizing various solid wastes such as industrial scraps, domestic sludge, stale garbage, etc.; the solid wastes are first classified, inspected, and selected, and then microorganisms and microbial fermentation promoters are added for fermentation; finally, a modifier and an impregnating agent are added and mixed evenly, and then the wastes are crushed and screened by a crusher; the alternative fuel prepared by the invention has the advantages of short ignition time, long combustion time, low residue rate, high calorific value, etc., and can be applied to most industries requiring coal combustion, such as cement, electricity, steel, brick making, glass, etc.; the alternative fuel prepared by the invention not only directly reduces the harm of these wastes to the environment, but also has obvious economic benefits, and can effectively alleviate the current problem of energy shortage.

The present invention belongs to the technical field of carbon black reactors, and discloses a carbon black reactor that can improve quality and increase efficiency, including a base, a reactor body fixedly installed on the top of the base, the reactor body including multiple groups of throat sections and combustion chambers, the throat sections and the combustion chambers are connected by flanges, one end of the combustion chamber is respectively fixedly connected to an air supply pipe, an additive supply pipe and a gas supply pipe, and one end of a group of throat sections is fixedly connected to a discharge pipe. When the combustion speed of the device is greater than the oil injection speed, the burning flame begins to move upward and approaches the oil injection pipe and the heat conducting rod. At this time, the temperature of the heat conducting rod rises abnormally, and heats the heat expansion liquid in the placement groove, causing its volume to expand, and pushes the piston, the connecting block and the sealing sleeve upward, thereby reducing the area of ​​the through groove covered by the sealing sleeve, increasing the effective oil passing area of ​​the through groove, and improving the oil injection speed of the device, thereby avoiding the occurrence of the flashback phenomenon.

The invention discloses an automatic control method for constant-pressure furnace changing of a blast furnace hot blast stove. The automatic control method comprises the following steps that S1, communication between the blast furnace hot blast stove and an air blower PLC system is established; s2, when a hot-blast stove PLC compiles a program and changes a stove, a stove changing signal is given and output to an I / O module of the air blower system through a relay, and a constant-voltage automatic stove changing input operation picture is configured in the hot-blast stove system; s3, a program is compiled in an air blower control system, after a furnace changing signal of a hot blast stove system is received, the opening degree of a static blade of an air blower is automatically adjusted through a PID control program, the air pressure is stabilized, and the air pressure and the air volume in the furnace changing period are kept consistent with those before furnace changing; and S4, constant-pressure furnace changing operation is achieved through PID automatic adjustment. Constant-pressure full-automatic furnace changing is adopted, blast furnace pressure fluctuation cannot be caused by hot blast furnace changing, the service life of the hot blast furnace is prolonged, the compensation air volume is accurately and automatically adjusted through the opening degree of the blast static blade, the improvement cost is low, and the method is economical and applicable and can be popularized in multiple production processes.

The utility model relates to a kind of secondary combustion chamber for solid waste treatment, including shell, the bottom of shell is equipped with air inlet, top is equipped with air outlet, shell bottom is equipped with burner, shell bottom end outside is also equipped with closed loop wind device, closed loop wind device is used to the direction of the shell radial direction in the shell for air intake, to make flue gas spiral flow from the air inlet to the air outlet;Closed loop wind device includes two groups of air intake components respectively distributed in the shell two sides, air intake component includes main pipe and the multiple branch pipes connected on main pipe, branch pipe one end is communicated to the shell, the other end is closed.The utility model increases closed loop wind device, the combustion time of original combustion track is increased from 2.8 seconds to 3.8 seconds, can effectively increase combustion time, reduce the detonation phenomenon caused by too short combustion time, avoid producing CO flue gas overproof, can reduce the risk of flue gas overproof.

The hollow spiral incense stick with a long burning time described in this utility model is characterized by comprising a hollow spiral incense stick body extending downwards in a spiral shape, a base connected to the lower end of the hollow spiral incense stick body, and an insert rod, the upper end of which extends into the base and the lower end of which extends out of the base. This utility model eliminates the need for breaking the incense sticks apart during use, reducing unnecessary waste of mosquito coils. It also boasts a long burning time, is safe to use, and the hollow structure effectively reduces drying time and the amount of bamboo sticks used, significantly lowering production costs.

The utility model discloses a fluidized bed boiler capable of improving the combustion rate of purified ash, and relates to the technical field of fluidized bed boilers. The bottom of one side wall of the furnace body is fixedly provided with a raw material pipe, the outer side wall of the furnace body is fixedly provided with a secondary air pipe, the secondary air pipe is located right above the raw material pipe, the bottom of the furnace body is fixedly provided with a slag discharging pipe and a primary air pipe, the other side wall of the furnace body is provided with a smoke discharging hole, and the furnace body is provided with a purified ash auxiliary combustion mechanism. The purified ash auxiliary combustion mechanism is arranged to be matched with the smoke exhaust hole with the position changed, the combustion time of flue gas fly ash in the furnace is effectively prolonged through the use of the auxiliary baffle, meanwhile, the situation that the purified ash is directly discharged out of the furnace body is avoided, and therefore the burn-off rate of carbon particles in the fly ash is increased, and the combustion efficiency is improved. Purified ash in the flue gas is fully combusted, and the practicability of the device is greatly improved.

The present invention relates to a natural gas additive and a preparation method thereof, and belongs to the technical field of fuel gain agents, the natural gas additive comprises, by weight, 70-80% of n-pentane, 4-6% of thiophane, 3-5% of 2, 3-dimethyl butane, 6-10% of methanol, 2-3% of isopropanol, 1-2% of methyl tert-butyl ether, 3-5% of xylene, 0.012-0.018% of cerium stearate, 0.004-0.006% of lanthanum citrate, and 0.38-0.58% of ferrocene. When the natural gas additive is added into natural gas, the cutting efficiency can be improved, gas combustion chemical reaction in unit time and unit space can be accelerated, released energy is increased dramatically, and complete combustion of gas is promoted, so that the flame temperature is greatly increased, and slag is reduced.