15results about How to "Extended burn time" patented technology

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.

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.

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 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 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 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.

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 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 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.