139results about How to "Strong thrust" patented technology

An electric energy auxiliary device of transdermal drug delivery patch is provided which includes an upper electrode, a lower electrode, and a drug storage area between two electrodes, generating a kinetic energy in the pharmaceutical compound in the drug storage area toward the skin by a electric field between two electrodes. For the pharmaceutical compound with the same polarity, the pharmaceutical compound is pushed by the electric energy interacted with polar the pharmaceutical compound so as to deliver the drug the human body. The lower electrode generates an ion channel with electroporation on the surface of skin. By using the change of electric field on the surface of skin, a temporary ion channel is generated in the cells where the pharmaceutical compound enters the systemic circulation of human body via skin. This temporary ion channel allows large compound to pass into the skin of human body.

The invention provides polyurethane foam for an all-plastic plastic runway and a preparation method thereof. The preparation method comprises the steps that 28-35% of polyether polyol, 45-52% of stuffing, 8-12% of plasticizers and 8-15% of isocyanate are weighed by weight and react at 65-70 DEG C for 3-4 hours; the isocyanato quantity in the reaction system is detected; when the isocyanato quantity is 7.0-7.5, 0.5-1.5% of silane coupling agents are dropwise added in the reaction system until the isocyanato quantity in the system is 5.0-5.5; the temperature is lowered to 50-55 DEG C, then antiaging agents are added, the temperature is lowered, filtering and packaging are performed, and polyurethane is obtained; when construction is performed, foaming agents are added at room temperature for foaming to obtain the polyurethane foam. According to the polyurethane foam, the polyurethane is modified through the silane coupling agents, the foaming efficiency is improved, the better micro-air-bag structural material is obtained, and the requirements of an elastic layer of the plastic runway are met.

The present invention provides a large-tonnage forklift truck, that is, the functions of the loader and the large-tonnage forklift are combined into one, and the boom of the original loader is shortened, thereby changing the fulcrum of the lifting cylinder on the boom, so that The active force arm on the swing arm becomes longer and the transmission force arm becomes shorter; and the rotating shaft set on the rocker arm is moved down to make the active force arm on the rocker arm longer and the transmission force arm shorter; lower the lifting cylinder in The connection point on the front frame makes the angle between it and the front frame smaller and has stronger thrust; and the diameter of the lifting cylinder is increased to increase the oil pressure of the lifting cylinder to increase the weight of the fork. The present invention combines the operating functions of large-tonnage forklifts and loaders, through the comprehensive integration of machinery, electrical appliances, and hydraulic pressure, and at the same time has the advantages of flexibility and off-road performance of loaders, and the advantages of large loading capacity of large-tonnage forklifts, and reduces fuel consumption. Relatively small, it can load and unload 25 tons of stone blocks, and can lift the goods to a height of more than 3200mm.

The invention belongs to the field of electric thrust and particularly relates to a micro-cathode electric arc thruster applied to a micro-nano satellite. The micro-cathode electric arc thruster is mainly applied to power systems of small satellites such as the micro-nano satellite. According to the micro-cathode electric arc thruster, aiming at solving the problem that an existing micro-nano satellite is not provided with a propelling system, through the vacuum cathodic electric arc discharging principle, an integral electric thruster structure is designed. The thruster structure is mainly composed of a shell 1, a cathodic working medium 2, a spring 3, a ceramic cylinder 4, a base 5, fixing nuts 6, nut fastening bolts 7, an anode 8, a conductive coating film layer 9 and a magnetic coil 10. When a preset voltage is achieved between a cathode and the anode, cathode spots conduct discharging, spreading is gradually conducted, and the cathodic working medium is continuously subjected to ionization corrosion to form a stable plasma plume. The plasma plume is sprayed outwards under the effect of an applied magnetic field to form needed counteractive thrust. The micro-cathode electric arc thruster is small in overall structural size and low in weight.

Ths invention discloses one super thin three freedom plane motor to provide one micro work bench execution parts with high accuracy, which comprises coil parts ad permanent magnetic parts composed of three sets of drive units to realize the three freedom in plane, wherein, the two sets of drive units axis lines are parallel without overlapped; the third set of drive unit axis line is cross with front two sets with each composed of one or more coil with same drive direction unit.

The invention discloses a chain type electric window opening machine window. The chain type electric window opening machine window includes a window frame, one side of the window frame is hinged with one side of the window sash, and the lower side of the window frame is connected with a chain type electric opening window through a fixed bracket. Window machine, the front end of the chain of the chain type electric window machine is connected with the lower side of the window sash through the chain fixing bracket. It can realize remote automatic control, realize automation, wireless remote control and wireless smoke and rain sensing methods, and it is more flexible and convenient to use. With circuit control overload protection, low noise design, stable operation, special stainless steel roller chain, strong thrust. The installation structure of three fixed points ensures the most effective distribution of power, and the installation is simple and convenient. It is suitable for household top-hung windows and casement windows.

The present invention provides a small piezoelectric / electrostrictive ultrasonic linear motors which are installed in cell phones or PDAs, etc. to drive their camera lenses. In the present invention, a movable shaft (30) is coupled to a unimorph or bimorph, which is made by attaching a piezoelectric or electrostrictive substrate to an elastic body (20) (metal), so that a movable body (40) fitted over the movable shaft (30) is linearly moved along the movable shaft (30) by vibration of the piezoelectric or electrostrictive substrate, thus simplifying a manufacturing process, being easily practicable according to a basic principle, and having superior characteristics.

The invention discloses a window with a push-rod type electric window opener. The window comprises a window frame and a window sash, wherein the upper edge of the window frame is articulated with the upper edge of the window sash; the push-rod type electric window opener is connected between the window frame and the window sash; the window frame is connected with the push-rod type electric window opener through a rear support; and the window sash is connected with the front end of the push rod of the push-rod type electric window opener through a front support. The push-rod type electric window opener has the window push-rod type mechanism and is capable of realizing remote automatic control; the push-rod type electric window opener window is provided inside with an electronic overload protection circuit and designed to be low in noise, stable in operation and powerful in thrust and designed to be mounted in multiple directions. The window is capable of realizing technical automation, wireless remote control and wireless smoke and rain sensing, and is quite flexible and convenient to use. Besides, the window is suitable for the side-by-side windows or the single side windows of houses, hotels, public houses and the like. Moreover, the window can be used for opening large windows for ventilation in daily life and roof lights.

The present invention relates to crawler type building machinery and conveyer technology, and is especially one kind of sealed liquid lubricator. The sealed liquid lubricator consists of elastic rubber ring, metal ring and conic rubber stopper with blind hole. It is mounted to counter bore in each crawler link, and the metal ring under the action of the elastic rubber ring reaches sealing, thrusting and stabilizing functions. The conic rubber stopper with blind hole seals the central oil hole of pin shaft in air balancing method. The oil cavity of the lubricated crawler may in different forms. The crawler with the sealed liquid lubricator has low running resistance, low power consumption, long service life and expanded application range.

The invention discloses a double-speed oil cylinder, mainly comprising a cylinder body, an oil cylinder front cover, an oil cylinder back cover, a large piston and a movable piston rod, wherein the other end of the cylinder body and the movable piston rod form a sealed space by the oil cylinder front cover, the large piston is arranged at one end of the movable piston rod, the movable piston rod is of a hollow structure, a fixed piston rod is arranged in the movable piston rod, the fixed piston rod is of a hollow structure, two ends of the fixed piston rod are communicated, one end of the fixed piston rod is connected with the oil cylinder back cover, one end of the movable piston rod in the cylinder body is sealed with the outer wall of the fixed piston rod by the large piston, and the large piston is glidingly connected onto the fixed piston rod. In the double-speed oil cylinder, a pushing force can be changed by means of the different compression areas of the movable piston rod and the large piston, synchronously the pushing speed and the retreating speed of the oil cylinder can be improved when the smaller compression area is used; therefore, the wood splitting speed can be greatly improved and the working efficiency is improved. A sequence adjusting valve is arranged so that the switching between the fast push and the large pushing force can be automatically realized aiming at requirements on the pushing force; and therefore, the operation is more simple and convenient.

The invention discloses a launching method and a launching device. A method of rotating a rotator is adopted. The launching method is mainly used for launching a carrier aircraft and various spacecrafts; moreover, the launching method can be used for launching various missiles and high-energy weapon systems. The invention manages to overcome the existing problems of various catapults for aircraft carriers based on a novel concept. Meanwhile, compared with an electromagnetic rail gun, the launching device has no need for super-energy launch and manages to solve the power problem which is difficult to overcome for the electromagnetic rail gun, and the power of the launching device far exceeds that of the an electromagnetic rail gun, and creates the future of a novel weapon system.

The invention discloses a novel ultra-wide front fulcrum cable-stayed hanging basket thrust device which comprises a supporting block, a fixed support and a movable support, wherein the supporting block is provided with a penetrating cross rod, a horizontal square steel column, a first fixing steel bar and a first supporting foot; the fixed support comprises an antiskid plate, an L-shaped supporting plate and a lock catch frame, and a rectangular groove of a bottom plate of the lock catch frame is riveted with a female head lock catch; a rectangular groove of a top plate of the movable supportis riveted with a male head lock catch, a U-shaped plate of a female head lock catch and a U-shaped plate of the male head lock catch are clamped together to form a rectangular frame structure, and ahorizontal square steel column is movably sleeved with the rectangular frame structure. The invention further provides a corresponding use method. The female head lock catch and the male head lock catch with simple U-shaped frame structures are adopted; clutch locking and unlocking can be achieved only through forward and reverse sliding of the walking mechanism, namely, the whole walking-thrust-unloading work is completed, the mounting, fixing and dismounting process is simple, convenient and clear, the laying process of the cable-stayed hanging basket embedded part is greatly shortened, andthe hanging basket pouring construction speed of the cable-stayed bridge is increased.

The invention relates to a ship propeller, which comprises a pushing mechanism and a driving mechanism. The ship propeller is characterized in that the pushing mechanism comprises a cylinder sleeve, a piston, a piston connecting rod and a pressure-limiting automatic valve opening device, wherein the piston is sleeved in the cylinder sleeve, one end of the piston connecting rod is hinged with the piston, the other end of the piston connecting rod is connected with the driving mechanism, and the piston is provided with a valve rod hole and a ventilation hole; and the pressure-limiting automatic valve opening device comprises a valve, a valve rod, a spring and a spring bottom plate, wherein the valve is of a disk shape, the valve rod is inserted into the valve rod hole, one end of the valve rod is connected with the valve, the other end of the valve rod is connected with the spring bottom plate, and the spring is arranged between the piston and the spring bottom plate and is sleeved on the valve rod. The ship propeller has the beneficial effects that the ship propeller is simple in structure, low in manufacturing cost, reliable in work, high in propelling speed and low in noise, and is energy-saving and environment-friendly; and due to the simple structure, the loss in energy and power is reduced.

The invention discloses a carbon dioxide fracturing method. The method includes the steps that first, carbon dioxide fracturing devices are assembled; second, an ohmmeter is used for detecting whetherthe resistance value between a filling valve and a release tube is normal or not; third, the carbon dioxide fracturing devices assembled in the first step are loaded and transferred to a mine after passing examinations; fourth, whether the resistance between each carbon dioxide fracturing device and a wire is normal or not is measured, a layer of blasting holes are drilled in the mine, and the carbon dioxide fracturing devices are put into the corresponding blasting holes; fifth, the hole opening of each blasting hole is covered with a bamboo chip and then is covered with a tarpaulin and earth bags; and sixth, a warning region is made around each carbon dioxide fracturing device, and an ignition device is pressed to start the carbon dioxide fracturing devices for detonation. By means of the carbon dioxide fracturing device, reuse can be realized, using cost is greatly reduced, powerful thrust generated momently is used for tearing materials, the same carbon dioxide fracturing devicescan be connected through the corresponding wires, and the advantages of being low in labor intensity, large in fracturing force, safe and good in fracturing effects are achieved.

The invention discloses a gear-rack log splitter with a clutch. The gear-rack log splitter comprises an engine holder, an engine, a tool and a push plate. The engine is arranged on the engine holder. A frame is disposed at the front end of the engine holder. The gear-rack log splitter is characterized in that a power input shaft and a gear shaft are disposed on the frame, a flywheel and a first sprocket are disposed on the power input shaft, the engine is connected with the flywheel through a belt, a second sprocket, the clutch and an operating handle are disposed on the gear shaft, an input portion of the clutch is connected with the flywheel, the operating handle is connected with an output portion of the clutch, the first sprocket and the second sprocket are connected through a chain, a rack is disposed on the frame, the push plate is disposed on the rack, the bottom of the rack is connected with the frame through a tension spring, and the rack meshes with the gear shaft. The gear-rack log splitter with the clutch has the advantages that the tool can be reset fast, the service life of the tool is longer, and the gear-rack log splitter is suitable for wide popularization and application.

The invention relates to the technical field of aero-engines, in particular to a ceramic-based composite turbine outer ring high-temperature sealing coating and a preparation process thereof. The ceramic-based composite turbine outer ring high-temperature sealing coating comprises a bonding layer, a transition layer and a wearing layer coating from inside to outside in sequence. The bonding layercomprises SiC. The transition layer comprises Yb2SiO5. The wearing layer coating comprises ZrO2.Y2O3Polyester. The coating provided by the invention is a composite coating capable of being matched with a SiC / SiC ceramic-based composite and has the advantages of 1200-DEG C wear consumption sealing and heat insulation. The problems that mechanical damage caused by mutual friction between SiC / SiC ceramic-based composite turbine components, and high-temperature oxidation, structure degradation and other damages to a ceramic-based composite can be solved. The plasma technology has the advantages ofhigh-energy density, high production efficiency, low cost, little equipment investment and the like and belongs to the optimal process for preparing high-temperature-resistant ceramic coating materials.

The present invention relates to a ramjet engine comprising an air inlet channel (14), a combustion chamber (5) and a tail jetting tube, wherein an air drainage structure is arranged at the inlet end of the air inlet channel (14) and comprises a high-pressure air input pipe (2), high-pressure air cavities (3) and nozzles (1); the high-pressure air cavities (3) are connected onto the air inlet channel (14); the high-pressure air in the high-pressure air input pipe (2) enters the high-pressure air cavities (3) and enters the air inlet channel (14) through the nozzles, thereby implementing the effect of introducing a large amount of air. According to the ramjet engine, the air drainage structure is arranged in the air inlet channel; the high-pressure air generated by gasifying a small amount of liquid air is jetted and is used for driving the surrounding air to output a large amount of low-pressure airflow at one end at a high speed, so that the start of the ramjet engine under the static pressure is implemented; the operation stability of the ramjet engine of an aircraft using the engine in a stall condition is achieved.

The invention discloses an air kinetic energy ejection launcher for a spacecraft. The air kinetic energy ejection launcher for the spacecraft comprises an air inflation mechanism and a high pressure air spherical tank. The air inflation mechanism is communicated with the high pressure air spherical tank and used for providing vaporized gas for the high pressure air spherical tank, a blind plate cover with the gear shaped inner edge is installed on the opening in the top of the high pressure air spherical tank, a blind plate with the gear shaped outer edge is installed in the blind plate cover, the blind plate cover is connected with an electromagnetic drive device, after the electromagnetic drive device detects that the gas in the high pressure air spherical tank reaches the preset value, an operator operates the electromagnetic drive device to drive the blind plate cover to rotate by one gear, an ejection guide rail is also arranged on the upper end of the blind plate cover, the track cross-section shape of the ejection guide rail is matched with the shape of the blind plate, so that the blind plate can conduct ejection movements in the ejection guide rail under the push of the air pressure, the extending part of the upper end of the ejection guide rail is provided with a guide cylinder, and the spacecraft is installed above the blind plate. The device can reduce more than 90% of the void volume and launch weight, the launch speed of the spacecraft can be higher than 30,000-300,000 m / s, and the cost is low.

The invention discloses a direct injection type multi-stage power underwater high-speed thruster and a control method. The direct injection type multi-stage power underwater high-speed thruster comprises a low-speed section engine, an acceleration section engine and a high-speed section engine. The limitation of the single navigation speed of a traditional underwater navigation vehicle is broken through, the low-speed section engine, the acceleration section engine and the high-speed section engine structurally communicate with each other, three sections work in sequence after the thruster isstarted, and two typical motion states including the conventional low-speed cruise and the high-speed attack at the speed which is seven times the conventional speed can be achieved in the same voyage; and the efficient switching of the low navigation speed and the high navigation speed can be rapidly accomplished, and the stability of navigation in the switching process is guaranteed. The structural space arrangement of the thruster is reasonable, the optimized design of the multi-stage thruster in the minimum space is achieved, the multi-task fighting work under the complex condition can beaccomplished, and the fighting performance of an underwater weapon system can be greatly improved.

The invention discloses a conveniently-reversed ratchet mechanism. The mechanism comprises a first ratchet wheel with ratchets and a second ratchet wheel with ratchets. A one-way brake element is arranged between the first ratchet wheel and the second ratchet wheel; the one-way brake unit can selectively clamp the ratchets of the first ratchet wheel or the ratchets of the second ratchet wheel. The one-way brake element attracts and clamps the ratchets of the first ratchet wheel or the ratchets of the second ratchet wheel by means of magnetic force. The conveniently-reversed ratchet mechanism has the advantages of being simple in structure, large in twisting force, small in minimum swing angle, simple in reversing structure and the like. A ratchet wrench and a ratchet screwdriver manufactured from the conveniently-reversed ratchet mechanism also have the advantages of being simple in reversing structure, large in twisting force, small in minimum swing angle and the like.

The invention discloses a cold propeller, wherein, a vaporization room (3) is provided with a jet tube (5); a pressure switch (4) is arranged in the vaporization room (3) corresponding to the jet tube (5); a heating device and a feeder (1) for feeding solid material are arranged in the vaporation room(3). The heating device is either a liquefied gas heating device (6) or a diesel oil heating device. The feeder (1) for feeding solid material is provided with a one-way feeding valve (2). An impeller (8) is arranged on a main shaft (9) in the jet tube (5). The invention is a cold propeller with advantages of simple structure, easy manufacturing, reliable performance, environmental protection and low cost.

The invention belongs to the technical field of pharmaceutical preparation and discloses a high-density gastric stasis osmotic pump controlled release famotidine preparation and a preparation method thereof. The osmotic pump controlled release preparation is made from a tablet core containing famotidine and a semi-permeable coating membrane with drug release pores which is coated outside the tablet core; the tablet core is made from 400mg of the famotidine, 100-150mg of medicinal ferrous powder, 30-90mg of a suspension, 20-80mg of an osmotic pressure active material and 0.5-2mg of a lubricant; the semi-permeable coating membrane is made from 10-20g of a semi-permeable polymer material and 2-5g of a water-soluble pore making agent, and accounts for 5-9% of the weight of the tablet core; and the drug release pores are drilled at one side or two sides of a coating tablet by laser and by mechanical means. The medicinal ferrous powder is added to the tablet core to cause the drug to be more completely released from the drug release pores; meanwhile, the medicinal ferrous powder increases the density of the preparation; therefore, the preparation is stagnated in the folds of the lower part of the stomach, which greatly prolongs the release time of the pharmaceutical preparation in the stomach and improves the absorption capacity of the pharmaceutical preparation.

The invention discloses a workpiece main shaft capable of automatically dividing and clamping. The workpiece main shaft comprises a shaft sleeve, a shaft core and a motor, wherein the shaft core is pivotably arranged in the shaft sleeve; the motor is in transmission connection with the shaft core; the workpiece main shaft also comprises a clamping component used for braking the shaft core and an encoder component used for detecting rotation angles of the shaft core; the clamping component comprises a brake disc fixedly connected with the shaft sleeve, a first brake pad fixedly connected with the shaft core and a first cylinder fixedly connected with the shaft sleeve; a gap is reserved between the brake disc and the first brake pad; the first cylinder and the first brake pad are arranged onone side of the brake disc; a piston rod of the first cylinder directly faces to the first brake pad. When the shaft core needs to be braked, the piston rod of the first cylinder extends outwards andapplies pressure to the first brake pad; the first brake pad is stressed and deformed, and is in contact with the brake disc; the friction force between the first brake pad and the brake disc is capable of limiting the rotation of the shaft core; the pushing force of the cylinder is strong, so that a good braking effect can be ensured; the clamping component is few in parts; the workpiece main shaft is compact in structure and more convenient to assemble.

A solar thermodynamic machine power generation method can use the radiant energy of the solar concentrator, and directly convert the internal energy of the working medium molecule with cyclic phase transformation at low boiling point into electric energy for achieving the fuel-free large-scale electric power production. It has the characteristics of long-term continuous operation, green environmental protection, safety and reliability and low cost, and has a great application and social economic value. It makes use of the internal energy exchanging of the working medium molecule. It working process is thermal cycling balance. The present invention can be long-term continuously operated without the external power and does not consume any fuel and water. It is especially suitably applied to the solar tower-type and other light-gathering and thermal storage power generation systems.

The invention provides propellant powder and a preparation method. The propellant powder comprises 30-50 parts of potassium permanganate, 8-20 parts of a binding agent, 10-20 parts of potassium hydrogen phthalate and 20-40 parts of a combustible agent, wherein the combustible agent is a mixture of nitrocotton and charcoal powder. The propellant powder has low friction sensitivity and impact sensitivity, low moisture absorption rate and strong thrust and meanwhile reduces the environmental pollution.

The present invention discloses a twin-tailboom fixed column type reset hydraulic pressure narrow slit thruster which mainly includes an integrated group cylinder I, a double oil channel grillage 25 and a hydrodynamically operated inverting portion, wherein the integrated group cylinder I is composed by a fixed column type reset cylinder 9, a push cylinder 10 and opposite- support group cylinder II; the hydrodynamically operated inverting is composed by a feedback oil cylinder I 23, a feedback oil cylinder II 24 and a hydraulically operated direction control valve. The hydraulic narrow slit thruster described in the invention has unique structure, stable support and locating, powerful impulse force and the grillage structure is suitable for cutting rocks and plate-type powerful digging operations, and the cylinder structure is suitable for well-digging, probe boring and channel digging etc.

The invention provides a food waste processor. The food waste processor comprises a grinding part and a motor part, wherein the grinding part and the motor part are arranged from top to bottom; the grinding part comprises a grinding mechanism, and the grinding mechanism comprises a static grinding ring and a rotary crushing assembly; a motor of the motor part can drive the rotary crushing assemblythrough a driving shaft; the rotary crushing assembly comprises a grinding disc with one or more protruding blocks, and at least one protruding block is movably arranged relative to the grinding disc; a reset mechanism is connected between at least one protruding block and the grinding disc; and the reset mechanism provides reset force for matching a rotating direction between at least one protruding block and the grinding disc. Due to the arrangement of the reset mechanism, thrust of the protruding blocks is stronger, the crushing effect on food waste with higher hardness is better, so thatthe motor can still evade resistance when encountering the super-strong resistance, and the motor can be prevented from being blocked.

The invention relates to a square open jack. The jack is mainly composed of two bottom plates including an upper bottom plate and a lower bottom plate, four movable diagonal braces and one screw. During contraction, the diagonal braces are almost parallel to a bottom plate of the screw, and the jack is X-shaped in the semi-opening state and square in the maximum opening state. The support surfaceis long in the front and rear direction. The jack cannot fall over and is suitable for non-flat places on a construction site. Falling can be avoided by means of a safety lock. Workers can leave the jack for other operations, the personal safety is improved, and the jack saves labor and brings convenience to construction.

The invention discloses a device for adjusting the bearing clearance. The device comprises a first push-pressing assembly, a second push-pressing assembly and a hydraulic driving assembly, the first push-pressing assembly is provided with a first push-pressing part used for push-pressing the inner ring of one end of a bearing, and the second push-pressing assembly is provided with a second push-pressing part used for push-pressing the inner ring of the other end of the bearing. The hydraulic driving assembly is in transmission connection with the first push-pressing assembly and the second push-pressing assembly. When the device for adjusting the bearing clearance is used, the hydraulic driving assembly drives the first push-pressing assembly and the second push-pressing assembly to push-press the inner rings of the bearing so as to achieve the purpose that the bearing clearance is adjusted. Hydraulic transmission work is stable, thrust is huge, and the reliability and stability of thewhole bearing clearance are ensured accordingly; and compared with the traditional method that the inner ring of the bearing is directly knocked to adjust the bearing clearance, according to the device for adjusting the bearing clearance, parts in the bearing can be protected against damage, and the matching accuracy of the interior of the bearing is ensured.

The invention discloses a biomass hot blast stove device. The biomass hot blast stove device comprises a stove body. A main hearth, a first auxiliary hearth, a second auxiliary hearth and an air heating tube are arranged in the stove body and communicate in sequence. A secondary oxygen supply blast nozzle is connected with the air heating tube. The air heating tube penetrates the main hearth and the first auxiliary hearth to enter the second auxiliary hearth. The stove body is provided with a fuel inlet, the secondary oxygen supply blast nozzle and a gasifying agent, wherein the fuel inlet, the secondary oxygen supply blast nozzle and the gasifying agent communicate with the main hearth. The stove body is further provided with a hot air outlet. The hot air outlet communicates with a heating tube. Air duct interlayers are arranged on the two sides of the stove body. Air conveying plates are arranged in the air duct interlayers. An air conveying cover is arranged on the upper side of the stove body. The air conveying cover is provided with an air conveying opening. The biomass hot blast stove device is high in heat utilization rate, capable of achieving clean and complete combustion, convenient to use, high in safety and good in heat radiating performance.