131results about How to "Improve mixing uniformity" patented technology

The invention discloses a dilution sampling system and a sampling method of fixed source particles and volatile organic compounds, and belongs to the technical field of environmental monitoring. The dilution sampling system comprises a smoke introducing system, a diluting system, a stopping chamber, a sample collection system and a control and data collection system. The system can simulate the nucleation, condensation and coagulation processes of the fixed source smoke after being discharged to the atmosphere, can adopt a grain size classification sampling method of atmospheric particulate matters to sample the particulate matters, can adopt the atmospheric volatile organic matter sampling method to sample the volatile organic matters, and can realize the dynamic control of dilution ratio and the dynamic stopping time. Each part of the system has the advantages of high integration, high stability, automation in control, and easiness in operation.

The invention relates to a preparation method of long-chain branched cis-rich polybutadiene. The preparation method specifically comprises the following step of: reacting linear or linear short-chain branched cis-rich polybutadiene with a bifunctional or polyfunctional organic compound in the presence of a radical initiator, so that long-chain branched cis-rich polybutadiene is prepared. Compared with linear or linear short-chain branched cis-rich polybutadiene, the thermal stability, cold flow resistance, and mixing uniformity with packing, and the like, of the long-chain branched cis-rich polybutadiene are obviously improved, and the physical and mechanical properties and dynamic mechanical properties of vulcanized rubber are also obviously improved.

The invention relates to a coal-fired boiler SNCR and SCR combined denitration system. The denitration system comprises a boiler SNCR reaction system and a SCR reactor; the boiler SNCR reaction system comprises the boiler, an urea solution distribution module and a metering module, and an urea injection system and an urea supply system which are connected with the urea solution distribution module and the metering module; the urea injection system comprises multilayer-designed short spray guns with upper elevation in a 25m to 40m scope in a boiler furnace combustion zone, and multilayer-designed porous long spray guns having an furnace arch with the boiler, wherein, in each layer, at least one porous long spray gun vertically stretches into the boiler, and extends and passes through the cross section; the SCR reactor is connected with a boiler tail through a flue gas mixer; in the SCR reactor, the multilayer cellular catalyst can be arranged at a space between a coal economizer and an air preheater. According to the method, a mol ratio of ammonia nitrogen in an inlet cross section of the SCR catalyst is uniformly distributed, and denitration efficiency of the SCR reactor is enhanced.

The invention provides an EGR (Exhaust Gas Recirculation) gas mixer which can realize the purpose of evenly mixing EGR in a pipeline with shorter distance and smaller volume, and has certain denoising action on noise caused by the uneven air admission of a gas compressor. The EGR gas mixer comprises a hollow shell, wherein the shell is provided with an air inlet, a waste gas inlet and an air outlet which are communicated with the inner cavity of the shell; and the shell is also provided with a handedness vane which is connected with a power source and rotates under the driving of the power source. When the engine works, fresh air is sucked into the shell via the air inlet and rotates under the prerotation action force or the vane flow guidance to be changed into rotary airflow; and when the EGR waste gas is introduced in via the waste gas inlet, the EGR waste gas rotates under the action force of the rotary airflow so as to be evenly mixed with the fresh air. Because the gas compressor rotates to the same direction of turning of the air compressor vane during air inlet, airflow separation on the air compressor vane is weakened so as to improve the air compressor surge zone of a turbosupercharger, thereby lowering noise.

The invention provides a gas-liquid mixing apparatus, comprising a gas delivery pipeline, a liquid delivery pipeline, a gas collecting cavity, gas-liquid mixing rods, and a mixture delivery passage; the gas delivery pipeline and the liquid delivery pipeline are arranged at an angle of 90 degree, both the gas delivery pipeline and the liquid delivery pipeline are circular pipes, and the circular gas collecting cavity is provided between the gas delivery pipeline and the liquid delivery pipeline; the gas-liquid mixing rods are of circular pipe structure and are mounted in a superposed part of the liquid delivery pipeline and gas delivery pipeline, one side of each gas-liquid mixing rod is evenly provided with a plurality of circular exhaust holes equal in diameter, and an opening direction of the circular exhaust holes is the same as a moving direction of a liquid; gas in the gas collecting cavity mixes with the liquid through the gas-liquid mixing rods; the mixture is discharged through the mixture delivery passage that is communicated with and parallel to the liquid delivery pipeline, and the flowing direction of the gas is consistent to that of the fluid during mixing. In this way, gas and liquid mixing is more stable, and mixing efficiency is improved.

The embodiment of the invention discloses an SCR (Selective Catalytic Reduction) urea solution mixer which comprises an outer-layer tube and an inner-layer tube, wherein the inner-layer tube is arranged inside the outer-layer tube; side wall air outlet holes through which air flows out are formed in the side wall of the inner-layer tube; outer-layer tube air outlet holes through which air flows out are formed in the side wall of the outer-layer tube; the side wall air outlet holes and the outer-layer tube air outlet holes are formed in a staggered manner. According to the SCR urea solution mixer which is disclosed by the invention, as the side wall air outlet holes in the inner-layer tube and the outer-layer tube air outlet holes in the outer-layer tube are formed in the staggered manner, and air needs to flow to another side of the inner-layer tube to flow into SCR through outer-layer tube air outlet holes in the outer-layer tube after flowing outside the side wall air outlet holes in the inner-layer tube, the air flowing situation between the inner-layer tube and the outer-layer tube is relatively complex, the mixing uniformity of a urea solution is further improved, sufficient utilization of the urea solution is promoted, and the purpose of preventing urea from excessive precipitation is finally achieved.

The invention discloses a longitudinal-vortex-type ammonia-injection mixing arrangement used for an SCR denitration system. The mixing arrangement comprises static mixing units including fins and substrate flats and ammonia injection pipes provided with ammonia injection holes. The ammonia injection pipes are vertical to a flow direction of flue gas and pass through gas duct arrangement in an SCR denitration system. One static mixing unit corresponding to one ammonia injection hole is arranged. The injection direction of the ammonia injection holes and the flow direction of flue gas coincide or have included angles of 0-90 degrees. The substrate flats are vertically fixed on the ammonia injection pipes, and the fins are fixed on the substrate flats. The fins and the substrate flats have included angles of 30-90 degrees, and the attack angles between the fins and the flow direction of flue gas is more than 0 degree and is in a range of 0 to 60 degrees. Each fin is correspondingly arranged on the ammonia injection pipes in a downstream direction of the flow direction of flue gas. Ammonia enters the gas duct through the ammonia injection holes, and when ammonia and flue gas flow through the fins, a longitudinal vortex for secondary entrainment mixing is formed. The arrangement is good in mixing effect and uniform in ammonia nitrogen mixing, the distance required for uniform mixing is shortened, and the space utilization efficiency is increased.

The invention discloses a method for continuous preparation of 2-chloro-5-chloromethylpyridine in a microchannel. The method consists of: taking 2-chloro-5-methylpyridine as a raw material, adopting sulfonyl chloride as a chlorinating reagent, employing azodiisobutyronitrile as an initiator, and using an organic solvent as a reaction medium, in a microchannel reactor, conducting a chlorination reaction under 80-130DEG C, controlling the retention time of the reaction by controlling the flow rate of a reaction solution, and after the reaction, collecting the effluent of the microchannel reactor, thus obtaining the 2-chloro-5-chloromethylpyridine. The method disclosed in the invention greatly shortens the reaction time, improves the reaction efficiency and the product quality, and makes the product selectivity up to 97.88%. The reaction system in the invention has no amplification effect, can realize amplification by several times through parallel connection, and has the advantages of continuous reaction stability, simple operation, short production cycle, cheap and easily available raw materials, simple production process and the like, thus being suitable for industrialized production.

The invention discloses a tail gas aftertreatment system for treating engine tail gas. The system comprises a cover (3, 4) for limiting mixing chamber inside, an oxidation catalyst unit (1) and a SCRoF unit (2) assembled on the cover and both communicated with a fluid in the mixing chamber, a reducing agent metering module (5) mounted on the cover for spraying a reducing agent from the oxidation catalyst unit (1) into tail gas in the mixing chamber, and a cyclone guide piece (6) arranged in the mixing chamber and configured to guide a mixture of the tail gas and the reducing agent to flow into the SCRoF unit (2) from the mixing chamber in a cyclone manner.

The invention discloses a production method of a nutrient premix for dry method formula milk powder, mainly comprising the following steps of: evenly mixing 70-80 percent of starch, 10-15 percent of dextrin and 10-20 percent of glucose to obtain a matrix; then dissolving the matrix in 2-4 times mass of water the temperature of which is 50-60 DEG C to obtain a matrix solution; adding compound nutrients to the matrix solution in proportion of 1:1-3 for dissolution; then transferring to a colloid mill for grinding 5-10 times; and finally carrying out vacuum concentration and spray drying to obtain the nutrient premix for the dry method formula milk powder. The physical property of the nutrient premix produced by the production method is similar to that of whole milk powder; the nutrient premix can be directly mixed with the whole milk powder, and the mixing uniformity and the quality of the obtained formula milk powder is high; secondly, the nutrition loss rate of the premix produced by the production method is low; moreover, the production method is simple; and the starchy matrix is adopted as major material, and therefore, the cost is low and the raw materials are of easy obtaining.

The invention provides a design method of an ammonia nozzle of an SCR denitration device. Aiming at the condition of ultrashort mixing distance between smoke and ammonia in the denitration device, the method comprises the following steps: optimizing the flare angle theta of the ammonia nozzle and distributing the ammonia nozzle in a staggering manner to avoid the condition that the ammonia concentration is locally too high or too low; determining the structural parameters of the ammonia nozzle according to the mixing distance, the distance between ammonia spraying grating pipes, the distance between holes and the length of the ammonia nozzle, wherein the structural parameters of the ammonia nozzle comprise the flare angle theta of the ammonia nozzle and the cross displacement delta of the ammonia nozzle. According to the method, under the condition that the mixing distance is ultrashort, the mixing uniformity of the smoke and the ammonia reaching the plane of a catalyst inlet is improved, the NOx removing efficiency is ensured, and the ammonia escape amount is reduced.

The invention provides a material conveying device. The material conveying device comprises a mixing room, a rotary drum, a driving structure, at least two material conveying pipes, a discharge opening and mixing blades, wherein the mixing room has a mixing space and a discharge hole is formed in the bottom of the mixing room; the rotary drum is rotationally arranged on the mixing room and is provided with a first section positioned inside the mixing space and a second section stretching out of the mixing space upwards, and a rotary drum inner cavity is arranged inside the second section and a part of the first section, connected with the second section; the driving structure drives the rotary drum to rotate by a connecting structure; the at least two material conveying pipes are used for conveying raw materials into the rotary drum inner cavity through the connecting structure; the discharge opening is used for conveying the raw materials to the mixing space from the rotary drum inner cavity; and the mixing blades are arranged on the first section, are opposite to the discharge opening up and down and are used for uniformly mixing the raw materials discharged through the discharge opening. According to the material conveying device, by controlling the quantity of the raw materials conveyed into the material conveying pipe, the quantity of finished products discharged from the discharging opening can be controlled, so that special containing equipment and control device are not needed, and the equipment cost can be reduced.

The invention discloses a mixer, comprising a mixer body and a flow guide body, wherein the flow guide body is arranged between an air inlet of the mixer body and a mixed gas outlet, and comprises a flow guide ring and a flow guide post which is arranged in the flow guide ring; a plurality of natural gas orifices for jetting a natural gas into the mixer body are formed in the flow guide ring and the flow guide post. According to the mixer disclosed by the invention, the mixing uniformity is about 95%, and is greatly improved; the air intake uniformity of an engine is improved; the power of the engine is improved; various faults caused by uneven mixing of air and natural gas are reduced; consumption of the natural gas is lowered under the same output power; the energy source is saved; the mixer is relatively economical and applicable.

The invention relates to a gas turbine low-pollution combustion chamber single-vortex head structure. Firstly, central vortex air and central natural gas are mixed, and outer wall non-vortex air and outer wall natural gas are mixed. After that, the vortex air, the non-vortex air, the central natural gas and the outer wall natural gas are further mixed in a natural gas-air mixing cavity, the mixinguniformity of the natural gas and air can be improved, generation of hot spots can be avoided, and generation of nitric oxide is effectively lowered. By means of the gas supply mode of combination ofcentral vortex and outer wall non-vortex, the vortex intensity of head outlet airflow can be lowered, and the risk of occurrence of oscillation combustion is also lowered. By means of the combinationof the central natural gas and outer wall natural gas, the NOx-CO proportion can be improved, and flame stability is facilitated. A head outlet convergence section can improve the speed of natural gas-air mixed airflow, and tempering is effectively prevented. A tangential gas inlet small hole in the outer wall of a whirlcone can lower the risk of spontaneous combustion occurring inside the head structure.

The invention discloses a heat-preserving mortar with low thermal conductivity, and a production process thereof. The heat-preserving mortar is composed of the following raw materials: 40 to 90% of cement or gypsum, 1 to 20% of aerogel particles, 0 to 4% of cement-modifying agent, 3 to 15% of fiber, 1 to 15% of polymer emulsion powder, 0.5 to 5% of cellulose ether, 0 to 2% of a highly-efficient water-reducing agent, 0 to 1% of an organic silicone hydrophobic agent, 1 to 8% of lignocellulosic polymer emulsion powder and 0 to 40% of other lightweight aggregates; and the mortar is prepared by uniformly mixing the above-mentioned raw materials under complete stirring successively through three stages of stirring process. The heat-preserving mortar provided by the invention uses aerogel as a lightweight aggregate, so thermal conductivity of the mortar is greatly reduced; meanwhile, the adoption of the three-stage stirring process improves mixing uniformity of additives, enables fiber to be completely and uniformly mixed, reduces delivery distance of a fiber mixture and decreases damage of the lightweight aggregates, thereby reducing blockage and improving efficiency.

The invention provides a polymer-reinforced prestressed concrete cylinder pipe molding technology, and belongs to the technical field of pipeline manufacturing. The polymer-reinforced prestressed concrete cylinder pipe molding technology comprises the following steps that (1) manufacturing of a lining mold is conducted, wherein circumferential prestressed wires are wound around a concrete pipe core with a steel cylinder, a PCCP semi-finished product is formed and directly serves as the lining mold, and a reinforcing net is prefabricated in the concrete pipe core; (2) pretreatment of an outer mold is conducted, wherein a release agent coats the inner wall of the outer mold; and (3) construction of a pouring structure is conducted, wherein the lining mold, the reinforcing net and the outer mold are combined in sequence from inside to outside so as to form the pouring structure, polymer concrete is poured into the pouring structure, the outer mold is removed after molding is accomplished,and therefore a polymer-reinforced prestressed concrete cylinder pipeline is obtained. The polymer-reinforced prestressed concrete cylinder pipe molding technology is simple, and the manufactured polymer-reinforced prestressed concrete cylinder pipeline is excellent in performance and has the advantages of being high in sealing performance, strength and anti-permeability and resistant to corrosion.

The invention discloses a preparation method of a pearl layer powder-wild chrysanthemum cream powder hypotensive tablet. The preparation method comprises the following steps of 1, carrying out equivalent incremental mixing of hydrochlorothiazide and pearl layer powder to obtain mixed powder, 2, dissolving clonidine hydrochloride by ethanol having a volume concentration of 70% to obtain a solution, uniformly mixing the solution and the mixed powder obtained by the step 1, and repeatedly stirring to obtain a mixture, 3, drying the mixture obtained by the step 2 at a temperature of 40 to 60 DEG C and crushing the dried mixture into powder, 4, adding wild chrysanthemum cream powder and rutin into the powder obtained by the step 3, mixing, and carrying out granulation, and 5, carrying out tabletting and coating. Clonidine hydrochloride is dissolved by ethanol and then is uniformly mixed with hydrochlorothiazide and pearl layer powder; the mixture is dried, crushed and is uniformly mixed with wild chrysanthemum cream powder and rutin; and the mixture is processed into particles. The preparation method can effectively prevent that clonidine hydrochloride is coated by wild chrysanthemum cream powder, improve mixing uniformity and improve bioavailability of the pearl layer powder-wild chrysanthemum cream powder hypotensive tablet.

The invention relates to a silicone resin composite material. The silicone resin composite material comprises nano-fluorescent powder, nano quantum dots and colorless and transparent silicone resin, wherein nano-fluorescent powder and nano quantum dots are uniformly dispersed in colorless and transparent silicone resin, the silicone resin composite material is in a cured structure, nano-fluorescent powder and nano quantum dots are the luminescent material and the silicone resin is a first packaging material. The invention also discloses a manufacturing method of the silicone resin composite material, a lighting device comprising the silicone resin composite material, and an application of the silicone resin composite material as the lighting device. The silicone resin composite material disclosed by the invention has the beneficial effects that by virtue of mixing the nanoscale fluorescent powder with nanoscale quantum dots, the silicone resin composite material prepared by the invention has an improved mixing uniformity and good luminescence property and is suitable for a photoelectric device or an LED solid lighting device and the packaging of the photoelectric device or LED solid lighting device.

The invention relates to the technical field of boiler flue gas denitration equipment, and discloses a turbulent flow ammonia spraying grating in a boiler flue gas denitration system. The turbulent flow ammonia spraying grating comprises a grating header pipe, a grating branch pipe and a nozzle, wherein the nozzle is installed on an upper half part of the grating branch pipe, and provided with an annular turbulent flow piece, and the annular turbulent flow piece is vertical to the nozzle. The turbulent flow ammonia spraying grating improves the mixed uniformity degree of ammonia gas/air mixture and flue gas, and prolongs the service life of the nozzle simultaneously.

Relating to material mixing equipment, the invention provides an L-type two-stage homogenizer, which is provided with a first-stage material setting stirring device and a second-stage material setting stirring device. The first-stage material setting stirring device is provided with a support frame, a material barrel, a high-speed stirring instrument, a rotary chassis, a material flow converter, a revolving shaft, a turntable motor and a turntable bearing. The material well mixed by the first-stage material setting stirring device enters the second-stage material setting stirring device for material setting and stirring from an outlet through a centrifugal effect. The second-stage material setting stirring device is equipped with observation holes, an upper cover component, a rack, a driving shaft, a driven shaft, claw-type blades and a self-cleaning device. The homogenizer not only can realize continuous charging and continuous discharging, but also has the advantages of good dust leakproofness, high stirring efficiency, good material mixing effect, and self-cleaning effect on blades, etc.

The invention relates to a fixed bed radial reaction apparatus for producing styrene by dehydrogenation of low pressure drop ethylbenzene. The fixed bed radial reaction apparatus is characterized in that a spiral baffle plate is arranged in a reactant gas shunting channel, and a screw-type reactant gas shunting channel is formed. A mixing degree regulation hole is arranged over a diversion nozzle, a high temperature hot zone over the diversion nozzle is reduced, mixing uniformity is increased, and the apparatus is in favor of reducing mixing pressure drop. In addition, a biconical baffle plate is arranged in the catalyst sealing, generation possibility of reaction fluid short circuit is reduced, height of catalyst sealing is reduced, and the utilization rate of the catalyst is increased. The fixed bed radial reaction apparatus is more suitable for the technology requirement for producing styrene through ethylbenzene dehydrogenation by employing an azeotropic heat-recovery energy-saving technology.

The invention discloses a method for preparing 1,4-butane sultone by a microchannel reactor. A reaction device adopted by the method comprises the enhanced mass transfer type micro-channel reactor with a premixer and a micro-channel module, a first micro-pump and a second micro-pump are respectively connected with the premixer, the output end of the premixer is communicated with the feed end of the micro-channel module, the discharge end of the micro-channel module is connected to a reaction kettle, a discharge tube at the bottom of the reaction kettle is connected to a filter, and the filteris connected with a rectification kettle. An aqueous sodium sulfite solution and chlorobutyl acetate are respectively pumped into the premixer; a reaction solution enters the reaction kettle from thedischarge end of the micro-channel module, and undergoes reduced pressure dehydration, concentrated hydrochloric acid is added, and the obtained solution is refluxed and stirred; and the reaction solution in the reaction kettle is cooled, and then is filtered, and the obtained filtrate undergoes concentration, dehydration cyclization and rectification in the rectification kettle to obtain the finished 1,4-butane sultone. The method has the advantages of high reaction efficiency, good product quality, effective reduction of byproducts, and effective improvement of the molar yield.

The invention relates to the technical field of gardens, and discloses a spraying-angle-adjustable pesticide liquid spraying device for landscape garden maintenance. The problems of low spraying efficiency and high labor investment caused by small pesticide spraying range are solved. The spraying-angle-adjustable pesticide liquid spraying device comprises a base, a box body and moving wheels, the box body is arranged at the top end of the base, the moving wheels are arranged at the periphery of the bottom end of the base, a first motor is arranged in the middle of the top end of the box body, a stirring shaft located in the box body is arranged on an output shaft of the first motor, through holes sleeve outside the stirring shaft are formed in the bottom end of the base and the bottom end of the box body, a height adjuster located at the bottom end of the base is arranged at one end of the stirring shaft, and a mounting shaft is arranged at the bottom end of the height adjuster. According to the spraying-angle-adjustable pesticide liquid spraying device, a double-spraying mode is adopted, the spraying efficiency is effectively improved, meanwhile, the spraying angle is changed, the spraying range is effectively enlarged, and the working efficiency is greatly improved.

The invention discloses an microorganism culture tank device, which comprises a stirring cavity, a stirring device and a culture tank main body, wherein the stirring device and a culture storage device form the culture tank main body, a base is fixed at the bottom end of the culture tank main body, the stirring device is positioned above the culture storage device, the stirring device is internally provided with the stirring cavity and a transmission cavity, a material inlet is formed above the stirring cavity, a low-speed motor is fixed to the top end of the transmission cavity through a bolt, a rotating rod is installed at the output end of the low-speed motor through a coupler, and inclined rotating rods evenly distributed are fixed to the bottom end of the rotating rod. In the microorganism culture tank, microorganisms and biological raw materials in the culture tank are stirred by utilizing the rotation difference between the stirring rod and the rotating sleeve, and the stirringuniformity and the mixing degree are improved by utilizing different movement speeds, so that the two biological materials are fully mixed.

The invention provides a chemical sewage treatment method. Operation is completed through cooperation of an outer frame, a grinding device, a stirring device, a sediment collecting device and a sealing device. According to the invention, the problems that during precipitation treatment, a solid precipitant is put into sewage for precipitation treatment, however, due to the fact that the sewage conveying flow speed is high, particles of the solid precipitant are large, the solid precipitant is difficult to dissolve quickly when placed in sewage, precipitates stand in a precipitation tank afterprecipitation, and when the sewage flows and is discharged again, the standing precipitates can be turned over again under the flowing condition of the sewage, and collection of the precipitates is not facilitated are solved.

The invention relates to a preparation process of an electronic ceramic flow-casting sizing agent. The preparation process comprises the following steps: ball milling and uniformly mixing powder, a dispersing agent and a half of a main solvent so as to obtain a mixed powder agent, wherein the powder is adequately dispersed and is uniformly mixed through ball milling; uniformly mixing and stirring a plasticizer, a binder and the other half of the main solvent so as to obtain a mixed solvent, wherein the plasticizer cannot be adequately inserted into a double bond of the binder, the binder is adequately plasticized, and the plasticizing effect of the binder is increased; and finally, adding the mixed solvent into the mixed powder, and carrying out adequate ball milling and mixing, so as to obtain the flow-casting sizing agent. Electronic ceramic produced through the sintering of the flow-casting sizing agent has a dense and compact structure, grain particles are small, and the mechanical property is greatly improved.

Disclosed in an embodiment of the present application is a mixing apparatus, mixing machine, and cooking utensil. A mixing apparatus that can be fitted to an electric motor assembly. The electric motor assembly is able to drive the mixing apparatus to rotate for mixing food ingredients. The mixing apparatus comprises a connection part, stirring rods extended from the connection part and stirring bars. The positions at which the stirring bars are fitted to the stirring rods can be adjusted based on the type and quantity of food ingredients to increase mixing uniformity.

The invention discloses a tail gas aftertreatment box. The tail gas aftertreatment box comprises a box body (1), a diesel oxidation catalyst (2), a reductant mixer (3), selective catalytic reducers (4,5) and a reductant injector (9), wherein the box body (1) defines a box body inner space, tail gas sequentially flows through the diesel oxidation catalyst (2), the reductant mixer (3) and the selective catalytic reducers (4,5), the diesel oxidation catalyst (2), the reductant mixer (3) and the selective catalytic reducers (4,5) are born by the box body (1) and are arranged substantially parallelto each other, the reductant injector (9) is configured to eject a reductant into the reductant mixer (3), and a rotational flow guiding element (35) is arranged in the reductant mixer (3) and is used for generating a rotational flow of a mixture of the reductant and the tail gas in the reductant mixer (3).

The invention provides a method for preparing high-strength concrete from waste fibers, which is implemented by matching a bottom frame, a connecting frame, a stirring device, an electric turntable, arotating frame, a stirring paddle, a sealing cover and a blowing-away device, and can solve the problems that in the traditional stirring mode, concrete slurry and fibers are generally directly mixedand directly stirred; however, due to the fact that fibers are light and thin, a pile of fibers are put into concrete slurry at the same time, even mixing is difficult in the later stirring process,the situation that the fibers are attached to the surface layer and the shallow layer of the concrete slurry and are not mixed into the inner layer often exists, the strength of all parts of the concrete is different, and the later engineering quality is affected.

Disclosed is a high-efficiency mixer igniter which is used for a pulse soot blower, comprising a positioning end cover (1), a gas inlet pipe (2), a gas inlet pipeline (3), an upper distributing baffle (4), an inlet upper shield ring (5), an outer shell (6), an inlet lower shield ring (7), a shield ring (8), an affluence baffle (9), a gas collector (10), a shield ring (11), an outlet upper shield ring (12), a lower distributing baffle (13), an outlet lower shield ring (14), a gas outlet pipe (15), an igniter (16), a connection flange (17), a fuel gas outlet (18), and a mixer and the igniter are combined in a whole. The air inlet pipeline (3) and the gas collector (10) are arranged to form two channels which shatter airflow from the center to the surrounding when the airflow passes through and respectively impacts the upper damper (4) and the lower damper (13). Two ring airflow channels which are formed by the upper baffle (4) and the lower baffle (13) as well as the outer shell (6) are arranged. Two airflow channels of the gas collector (10) and the gas outlet pipe (15) have two airflow channels capable of driving air flow to flow to the center in centralization manner. The air inlet pipe (2) is connected by pipe threads, and the mixed air outlet (18) is connected by the flange. The installation positioning is positioned by the positioning end cover (1) and the flange (17).