44results about "Flame throwers" patented technology

The invention discloses a soil flame sterilization method and device. The sterilization method comprises the steps that the rotary tillage speed and the rotary tillage depth of rotary tillage operation and the temperature and the humidity of operation soil are obtained in real time; performing a layered disinfection strategy on the operation soil based on the rotary tillage depth, and dynamically adjusting combustion parameters of sterilization flame based on the collected temperature, humidity and rotary tillage speed of the operation soil; wherein the layered disinfection strategy is that the combustion mode of sterilization flame is dynamically adjusted according to the rotary tillage depth. According to the method, the rotary tillage speed and the rotary tillage depth are collected in real time, sterilization layers are dynamically divided in combination with the rotary tillage depth, a layered disinfection strategy is carried out on operation soil, the temperature and humidity parameters of the soil are collected in real time, and the combustion temperature, duration and frequency are adjusted in real time through a closed-loop control algorithm; according to pathogen distribution characteristics and soil structure differences of soil at different depths, precise and efficient sterilization and deinsectization are achieved, and meanwhile energy waste and ecological damage are reduced.

A gas powered thermal weeder having a burner head for burning gas to generate heat. The burner head has a foot portion for placing in proximity to weeds to be treated with heat generated at the burner head. The burner head is connected by a support tube to a handle portion, with the handle portion and support tube being for use together in supporting and positioning the burner head during the treatment of weeds. The handle portion comprises a gas canister mounting portion to which a gas canister is mountable for supplying gas to the burner head.

The utility model discloses an efficient root-soil separating device which comprises a root-soil separating mechanism, the root-soil separating mechanism is located between a first lifting mechanism and a second lifting mechanism, and an outlet of the first lifting mechanism is connected with a material guide plate. The root-soil separating mechanism comprises a separating box, a first rotating shaft, a first separating auger blade, a second rotating shaft and a second separating auger blade; the first rotating shaft and the second rotating shaft are both arranged in the separation box, the first separation auger blade is arranged on the outer side face of the first rotating shaft, the other end of the material guide plate is located on one side above the first separation auger blade, and the second separation auger blade is arranged on the outer side face of the second rotating shaft. According to the efficient root-soil separation device, redundant surface soil can be separated from stubbles and bonded soil, fire is prevented from being blocked and extinguished by the surface soil, and the sterilization efficiency is greatly improved.

The utility model relates to the technical field of honeycomb destruction. The remote honeycomb destroying device comprises a supporting rod, the inner wall of the left end of the supporting rod is connected with the right end of a containing plate in a clamped mode, an ignition mechanism is arranged on the outer surface of the left end of the supporting rod, a rapid fixing mechanism is arranged at the left end of the containing plate, and a deflection mechanism is fixedly connected to the right end of the containing plate. According to the pesticide spraying device, a person holds the supporting rod, then the supporting rod drives the placing plate to move up and down, the rapid fixing mechanism and the pressing type pesticide are driven to move upwards, at the moment, the pressing plate moves downwards, one end of the pressing type pesticide is pressed, and therefore liquid in the pressing type pesticide is sprayed out; at the moment, the igniter is started to ignite the liquid in the pressing type insecticide, and the personnel can extinguish the honeycomb at the high position without passing through a ladder, so that the personnel are prevented from falling off the ladder, and the safety of the personnel when removing the horse honeycomb is improved.

The invention discloses an intelligent control flame field management machine, which is characterized in that a flame injection system is arranged behind a rotary cultivator, the flame injection system comprises a combustor, a combustion fan assembly and a gas valve assembly, a gas mixing cavity is arranged in the combustor, and a gas converging pipe is connected to the gas mixing cavity; a flame jet hole is formed in the lower portion of the gas mixing cavity, an igniter is installed beside the flame jet hole, the combustion fan assembly is connected with the gas converging pipe through an air pipeline, the gas valve assembly is connected with the gas converging pipe through a gas pipeline, and gas and pressurized air are mixed into combustible gas in the gas mixing cavity. Combustible gas is sprayed out from the flame spraying holes. Intelligent control is achieved, the functions of remote ignition, fire extinguishing gas cut-off and automatic air volume adjustment are achieved, it is guaranteed that pressurized air reaches the interior of the combustor earlier than fuel gas, accidents caused by mistaken ignition due to the fact that the fuel gas flows back to an air pipeline are avoided, and safety, convenience and combustion efficiency are improved.

A carbonized straw weeding, insect killing and inactivation all-in-one machine belongs to the field of agricultural production machinery and comprises a vehicle hanging frame, a gas tank, a walking vehicle, a middle gas distribution assembly, a left gas distribution assembly, a right gas distribution assembly, a middle combustion support, a left wing combustion support, a right wing combustion support, a plurality of combustion guns, a plurality of fire blocking covers, a lifting cylinder and two light beams. The left-wing combustion support is in shaft connection with the middle combustion support through a left connecting shaft, the right-wing combustion support is in shaft connection with the middle combustion support through a right connecting shaft, and the left-wing combustion support and the right-wing combustion support can be folded and lifted. The device is simple in structure and convenient to operate, the device can be widened and narrowed through lifting of the left wing combustion support and the right wing combustion support, fine weeding, insect killing and sterilization can be carried out in a field, burning can be carried out on a large-area farmland, weeds can be carbonized into ash instantly, a large amount of smoke is avoided, and the device is worthy of popularization and application. And only a small amount of smoke is generated, so that the pollution to the environment is reduced.

The flame weeding machine comprises a vehicle frame, two wheels are installed on the rear side of the vehicle frame, an iron net roller is installed on the front side of the vehicle frame in a rotating mode, a flame projector is further installed at the front end of the vehicle frame, a fixing frame is arranged on the vehicle frame, an air source tank is placed on the fixing frame, and the air source tank is connected with the flame projector through an air pipe; in conclusion, the flame weeding machine comprises the flame projector with the adjustable angle and the iron net roller capable of adapting to different terrains, it is guaranteed that weeds are effectively removed, damage to crops is avoided, dependence on chemical herbicides is reduced, and an environment-friendly and efficient weed management solution is provided; the fertilizer is especially suitable for the requirements of organic agriculture, and is helpful for promoting the sustainable development of agriculture.

The utility model relates to high-temperature flame weeding and deinsectization agricultural equipment, which belongs to the technical field of agricultural machinery and comprises a fuel tank, a wheel type frame, a soil turning module, a transmission module, a flame projector, a fire extinguishing module, a transmission module, a cooling module, a pressurizing module and a protection module. The transmission module comprises a transmission shaft, a transfer case, a flat shaft, a transmission shaft support and a gearbox, the fire extinguishing module comprises a water tank, a water pipe and a water sprayer, the cooling module comprises an air fan, an air storage groove and an air pipe, the pressurizing module comprises an air pump and an air tank, and the soil turning module comprises a stubble cleaning structure and a rotary tillage structure. The rotary tillage structure is used for deep ploughing and soil loosening, high-temperature flame disinfection and multi-row high-temperature disinfection can be carried out on different land types and textures, disinfection blind spots are eliminated, the soil humidity can be improved, meanwhile, potential safety hazards are reduced, and water is supplemented for soil.

The utility model provides an insect killer, which relates to the field of insect killing equipment and comprises a telescopic main frame, a pressing component and a pressing type insect killing spray can hung at the front end of the telescopic main frame, an igniter and a driving component are further arranged in the telescopic main frame, one end of the pressing component is rotatably mounted at the front end of the telescopic main frame, and the other end of the pressing component is rotatably mounted at the rear end of the telescopic main frame. The other end of the pressing assembly is located over a top switch of the pressing type deinsectization spray can, the pressing assembly and the igniter are jointly connected with the driving assembly, and the driving assembly is used for driving the igniter to ignite and the pressing type deinsectization spray can to spray at the same time. The driving assembly is used for simultaneously driving the igniter to ignite and the pressing type deinsectization spray tank to spray, ignition and bidirectional deinsectization are carried out while spraying, the deinsectization effect is further improved, in addition, the telescopic main frame is convenient to adjust the overall length and increase the flaming and spraying distance, and then deinsectization operation is more convenient.

The utility model discloses a portable integrated bee killing double gun, which comprises a flame spraying gun head, a water mist spraying gun head, a gun body, a fuel gas conveying hose, a liquid conveying hose, a fuel gas tank and a liquid tank, the flame spraying gun head and the water mist spraying gun head are arranged at the front end of the gun body, one end of the fuel gas conveying hose is connected with the fuel gas tank, and the other end of the liquid conveying hose is connected with the liquid tank. One end of the liquid conveying hose is connected with the liquid tank, the other end of the liquid conveying hose penetrates through the interior of the gun body to be connected with the water mist spraying gun head, the flame spraying gun head is provided with an electric fire maker, the gun body is a telescopic pipe, and a gun head connecting piece is arranged at the front end of the gun body. The flame spraying gun head and the water mist spraying gun head are installed on the gun head connecting piece side by side, the gas conveying hose is provided with a gas conveying switch close to the gas tank, the liquid conveying hose is provided with a quick conversion connector, and the gun body is provided with an electric ignition switch which is connected with an electric igniter on the flame spraying gun head.

The invention relates to a soil preparation device which integrates the functions of pre-turning, spray burning, flue gas circulation purification, rotary tillage and spray fire extinguishing. The device moves in the field through the design of the traction type rack, the pre-turning assembly turns over straw and weeds on the shallow layer of the field, and the spraying and burning assembly sprays flames through a high-pressure gas mixture to clean the field surface and kill worm eggs in the soil. According to the flue gas circulating purification system, a plurality of fans are matched with a spraying head, so that zero emission of flue gas is realized. The rotary tillage assembly turns incineration residues into soil, and fertility is improved. The spraying fire extinguishing system eliminates an unextinguished fire source in the soil, and safety is guaranteed. The device improves the cleaning efficiency, is excellent in environmental protection performance, remarkably improves the soil fertility, and is a comprehensive solution for modern agricultural soil preparation.

The utility model discloses a honeycomb removing device which comprises a telescopic rod, a processing mechanism, a shoveling mechanism and a lighting mechanism. A handle and a wrench hinged to the handle are arranged at the bottom of the telescopic rod; the processing mechanism comprises a fixing frame arranged at the top of the telescopic rod and a pressing rod arranged opposite to the fixing frame, the fixing frame is used for installing a bee killing medicine tank or a combustible gas storage tank, and the spanner is provided with a pull rope connected with the pressing rod and used for driving the pressing rod to swing so as to press a pressing switch of the bee killing medicine tank or the combustible gas storage tank. A wireless igniter is further arranged on the fixing frame; the shoveling mechanism comprises a shovel blade which is detachably mounted on the first sleeve; and the lighting mechanism comprises a flashlight which is detachably mounted on the second sleeve. The firefighter can stretch out and draw back to a proper length according to use scenes, a firefighter can operate equipment at the rear within a safe distance, the hornet nest can be treated by spraying insecticide or fire, the hornet nest can be removed through a scraper knife after treatment is finished, and the firefighter has a lighting function and can work in a dark place or at night.

The utility model discloses a novel ignition bee killing device, including a no. The one end fixed sleeve of one holding rod has the holding rod no. The one end fixed sleeve of holding rod no. The one end fixed sleeve of holding rod no. This novel ignition bee killing device sets up the holding rod no. When needing to carry out long -range ignition bee killing, the holding rod no. At this moment, the fuel bottle is fixed in the inside of the fixed frame and is pressed and is pressed to hold, makes the press to hold to be able to drive the turnover clamp to overturn through the steel wire rope, promotes the turnover clamp to be able to to the fuel bottle's jet switch and carries out extrusion, to make the fuel bottle to be able to to the electronic ignition needle surface and carry out injection fuel, at this moment, opens the control switch, makes the electronic ignition needle through the emission arc and carries out ignition to fuel, to greatly improve the use distance of bee killing device, namely, improves the convenience of bee killing operation.

The invention belongs to the technical field of agricultural equipment, and particularly relates to a ground surface disinfection device based on thermal penetration, which comprises a frame-shaped rack provided with a plurality of combustors and a power source arranged on the rack, the rack is detachably connected with traction equipment, the combustors are arranged in rows at intervals along the operation direction, and the power source is arranged on the frame-shaped rack. An annular belt for conveying soil is rotationally arranged on the rack below the combustor; a soil shoveling plate is further arranged at one end of the machine frame in the operation advancing direction, moving wheels are arranged at the other end of the machine frame, the soil shoveling plate is obliquely arranged, the bottom end of the soil shoveling plate is used for cutting into the earth surface to conduct soil shoveling operation, and the top end of the soil shoveling plate extends to a top belt body of the butt joint annular belt. And an input shaft of the rotating driving ring belt is in transmission connection with an output shaft of the power source through a chain wheel transmission or belt wheel transmission structure. According to the device, in the moving process of the device, surface soil with the target depth can be moved into a stable heat treatment environment to be subjected to high-penetrability heating treatment, and the killing and cleaning effects on harmful substances in the surface soil are improved.

To provide a traction type fired soil sterilizer capable of efficiently sterilizing the fired soil of raw soil.SOLUTION: Since a traction type roasted soil sterilizer 1 is constituted by arranging a raw soil supply part 30, a roasted soil sterilization part 50 and a roasted soil discharge part 70 in order from the top on a traction frame 10, roasted soil sterilization can be carried out in a relatively narrow space. Since a burned soil discharge part 70 for discharging the burned soil discharged from the rotary drum 51 to the outside of the apparatus is attached to the frame 11 of the traction frame 10, it is not necessary to install and remove a belt conveyor when the apparatus is moved, the load of a worker can be reduced, and the efficiency of the burned soil sterilization work can be improved.SELECTED DRAWING: Figure 1

The invention relates to a robotic weeding equipment for agriculture robotic weeding system, comprising: a plant squeezer for squeezing cultivated plants, comprising a narrowing end portion and two longitudinal sides, extending backwards from the narrowing end portion when mounted on the agriculture robotic weeding system; a plant squeezer actuator operably connected to the plant squeezer for vertical displacement of the plant squeezer when mounted on the agriculture robotic weeding system; an image recognition device for identification of weeds; and a weed treatment processing device. The plant squeezer is configured to squeeze two parallel rows of cultivated plants to increase the weeding surface between said two parallel rows of cultivated plants. The invention also relates to an agriculture robotic weeding system comprising at least one weeding equipment, preferably three weeding equipment arranged next to each other along a direction perpendicular to the direction of the agriculture robotic weeding system when operating.

The application discloses a soil high-temperature inactivation device with a vibrating and heat-conducting spring tooth and heat disturbance, which comprises a high-temperature inactivation cover and a heat-conducting spring tooth assembly, wherein the heat-conducting spring tooth assembly comprises heat-conducting vibrating spring teeth, heat disturbance sliding plates and sliding plate limiters; the heat-conducting vibrating spring teeth comprise top end mounting parts, middle connecting heat-conducting parts and bottom end vibrating heating parts; the top end mounting parts are horizontally rotatably mounted on spring tooth mounting plates through vertical pin shafts; the middle connecting heat-conducting parts are linearly extended from the top end mounting parts to the bottom end vibrating heating parts in a rear and downward direction; all the middle connecting heat-conducting parts are externally provided with heat disturbance sliding plates; the heat disturbance sliding plates are slidably and obliquely mounted along the length direction of the middle connecting heat-conducting parts and have a downward sliding movement trend along the middle connecting heat-conducting parts; and the soil deep layer high-temperature inactivation can be realized by using the vibrating spring tooth structure and the sliding heat disturbance sliding plates in cooperation, and the heat utilization rate is high.

The utility model relates to the field of fire fighting equipment, in particular to a bee killing device which comprises a handheld rod, a fire spraying cover, a control assembly and a gas circuit assembly, the control assembly comprises a control box, a high-pressure pack and a sparking plug, the high-pressure pack and the sparking plug are electrically connected, and the gas circuit assembly comprises a liquid storage tank storing insecticide, a gas storage tank storing compressed air and a communicating pipe facing the sparking plug. When wasps are killed, the fire spraying cover is aligned with the hornet nest, the liquid storage tank and the air storage tank are controlled to convey insecticide and compressed air into the communicating pipe respectively, the compressed air drives the insecticide to be sprayed out of the spark plug in the communicating pipe, then the spark plug is controlled to emit electric sparks, and the insecticide and the electric sparks are matched to emit flames to kill the wasps. When fire spraying is not convenient, the insecticide in the liquid storage tank is controlled to be sprayed out to the hornet nest through the communicating pipe. Therefore, bee killing can be achieved under the condition that fire spraying is not convenient, the bee killing device can be used under various conditions, and the practicability of the bee killing device is improved.

The utility model discloses soil treatment equipment before garden nursery stock planting, which comprises a support plate, moving wheels are mounted below the support plate, a gas storage tank is connected onto the support plate through the support plate, a gas inlet mechanism of the gas storage tank is arranged above the gas storage tank, an exhaust pipe is arranged on the side surface of the gas storage tank and connected with a gas outlet pipe, and the gas outlet pipe is connected with a gas outlet pipe. The air outlet pipe is connected with an air spraying pipe with one end facing downwards, and a valve is arranged on the air outlet pipe. According to the soil treatment equipment before garden nursery stock planting, when insects are killed in a nursery stock planting area, the insects can be killed through flames, and the body safety of workers can be protected.

The invention discloses a method for breaking continuous cropping obstacles of panax notoginseng through a physical method, and belongs to the technical field of panax notoginseng planting.The process includes the steps that the surface of soil is covered with combustibles, the combustibles are incinerated, so that the surface temperature reaches 300 DEG C or above, meanwhile, after the temperature of soil with the depth of 15 cm reaches 60 DEG C and is kept for 15 min or above, incineration can be stopped, and the combustibles are removed; the problem of continuous cropping obstacles of pseudo-ginseng is effectively solved.

An apparatus configured to perform a prescribed burn of vegetative ground fuel comprises a movable platform configured to traverse ground that contains the vegetative ground fuel and a bum chamber disposed on the movable platform. A containment arrangement is situated relative to the bum chamber and configured to confine burning of the vegetative ground fuel to a prescribed burn region of the ground. The containment arrangement comprises an arrangement of interleaved plates having two or more different shapes and connected together via link members. A discharge apparatus is configured to expel residual effluent from the bum chamber.

The invention discloses a plowing device and method with a soil high-temperature disinfection function, and relates to the technical field of agricultural machinery. The plowing mechanism is mounted on the front side of the advancing direction of the frame body and is used for plowing soil; the protective cover is mounted on the rear side of the advancing direction of the frame body and is used for receiving and guiding the soil turned up by the plowing mechanism; the burning mechanism is mounted on the rear side of the advancing direction of the frame body, penetrates through the protective cover and is used for performing high-temperature disinfection on the turned soil and the deep original soil; the digging cutter and the burning mechanism are synchronously integrated on the lower side of the frame body, deep integration of plowing operation and high-temperature soil disinfection is achieved, the problems that in the prior art, the function is single, and time cost is high and the energy utilization rate is low due to the fact that step-by-step operation is needed are directly solved, plowing and disinfection are synchronously conducted, and the working efficiency is improved. And it is ensured that the turned loose soil can be immediately subjected to high-temperature treatment, the farming cycle is remarkably shortened, and the comprehensive efficiency of operation is improved.

An apparatus configured to perform a prescribed burn of vegetative ground fuel comprises a movable platform configured to traverse ground that contains the vegetative ground fuel and a burn chamber disposed on the movable platform. A containment arrangement is situated relative to the burn chamber and configured to confine burning of the vegetative ground fuel to a prescribed burn region of the ground. The containment arrangement comprises an arrangement of interleaved plates having two or more different shapes and connected together via link members. A discharge apparatus is configured to expel residual effluent from the burn chamber.

The invention discloses a modularized solenopsis invicta prevention and control robot and a prevention and control method thereof.The modularized solenopsis invicta prevention and control robot comprises a moving unit, a chemical killing unit, a physical killing unit, a recognition positioning unit, a detection obstacle avoidance unit and a control unit, the recognition positioning unit comprises a camera and an ultrasonic sensor, and a first support is fixed to the top end of the moving unit; a camera is fixed at the top end of the first bracket; an ultrasonic sensor is fixed at the front end of the moving unit; the detection and obstacle avoidance unit comprises a detection and obstacle avoidance module and an ultrasonic detector, the detection and obstacle avoidance module is fixed at the bottom end of the mobile unit, the ultrasonic detector is fixed at the front end of the mobile unit and electrically connected with the detection and obstacle avoidance module, and the ultrasonic sensor is electrically connected with the ultrasonic detector; the camera and the ultrasonic sensor are used for detecting the front environment in real time, intelligently judging and avoiding obstacles and moving to the designated position, different killing modes are selected according to different solenopsis invicta nests, and efficient and accurate killing is achieved.

The application discloses a physical method and device for preventing and treating diseases and pests of mulberry seedlings and mulberry gardens by high-temperature flame, and particularly relates to the disinfection and sterilization of mulberry seedlings before planting, wherein the mulberry seedlings are required to be defoliated and pruned, the pruning position is 30-40 cm away from the root neck, and the whole body of the mulberry seedling is disinfected and sterilized by the high-temperature flame, so that the prevention and treatment of diseases and pests before planting of the mulberry seedling are completed; for the disinfection and sterilization of the mulberry garden, the mulberry garden is required to be pruned and cleaned, the height of the tree stump after pruning is 60-80 cm, and the tree stump and the surrounding ground are disinfected and sterilized by the high-temperature flame, so that the prevention and treatment of diseases and pests of the mulberry garden are completed. The device comprises a first flame spraying device and a second flame spraying device, the first flame spraying device is used for uniformly disinfecting and sterilizing the mulberry seedling plant, and the second flame spraying device is used for uniformly disinfecting and sterilizing the mulberry garden plant. The high-temperature flame can effectively prevent and treat diseases and pests of the mulberry seedling or the seedling of a woody plant similar to the mulberry.

The invention relates to the field of bee killing devices, in particular to a dual-purpose bee killing device which comprises a bee killing box, a water pump, a fire spraying device and a dual-purpose pipe, when firefighters need to treat hornet nests, water or fire can be selected to treat the hornet nests according to actual conditions, and the fire can be used for killing the hornet nests. The beehive is a portable beehive, the water pump and the fire spraying device are integrated in the beehive, the working efficiency can be effectively improved, and the beehive is convenient to use. According to the wasp killer, the problems that a wasp killer used in the prior art is single in function, or cannot quickly remove hornet nests and kill wasps, or is inconvenient to use are solved to a certain extent.

The utility model relates to the technical field of deinsectization and weeding, and discloses a handheld flame deinsectization and weeding machine which comprises a flame deinsectization and weeding machine body, one side of the flame deinsectization and weeding machine body is fixedly connected with an output pipe, one side of the output pipe is provided with a spray head, and the surface of the output pipe is fixedly connected with two U-shaped blocks. Clamping grooves are formed in the two sides of an inner cavity of the U-shaped block, a cavity block is slidably connected into the U-shaped block, and a smoke hood is fixedly connected to the top of the cavity block. According to the handheld flame deinsectization weeding machine, by moving two smoke-proof hoods, the smoke-proof hoods drive cavity blocks to move, the cavity blocks are inserted into U-shaped blocks arranged on the two sides of an output pipe, then by moving a shifting plate, the shifting plate drives a connecting plate, a clamping block on one side of the shifting plate is inserted into a clamping groove formed in the U-shaped block, and the U-shaped blocks are clamped in the clamping groove. The two smoke-proof hoods are fixed through the two smoke-proof hoods, so that smoke generated after grass and trees are burnt can be effectively blocked, and discomfort to operators is avoided.

This utility model discloses a portable electric spray alcohol combustion bee-killing device, including an alcohol storage module, a control module, and a spray ignition module. The alcohol storage module has an alcohol tank equipped with a quick-detachable high-pressure hose, which is connected to the fuel inlet of an electric spray pump on the control module. The fuel outlet of the electric spray pump is connected to a combination structure of the high-pressure hose and a handheld telescopic rod. The spray ignition module is equipped with an igniter and an atomizing nozzle. The control module is equipped with an electric spray pump switch and a remote igniter switch. The high-pressure electric spray pump atomizes and sprays the alcohol onto the target beehive area, and the atomized alcohol is ignited by the ignition switch to achieve controlled combustion. This device achieves remote operation, high fuel safety, and controllable combustion. Furthermore, alcohol, as a clean fuel, has not yet been effectively used in bee-killing equipment, making it suitable for firefighters to quickly, efficiently, and safely eliminate high-altitude or concealed beehives.

A flame effect system for an unmanned aerial vehicle (UAV) includes a hopper configured to store a powdered fuel, a propellant tank configured to store a propellant, and a nozzle configured to expel the powdered fuel into an atmosphere. Furthermore, the flame effect system includes a fluid path extending from the propellant tank to the nozzle. The hopper is fluidly coupled to the fluid path at an intersection between the propellant tank and the nozzle, the hopper is configured to enable the powdered fuel to flow into the fluid path, and the propellant tank is configured to expel the propellant through the fluid path to fluidize the powdered fuel within the fluid path and to drive the fluidized powdered fuel through the nozzle.