Stubble wind tunnel type hydrogen-rich gasification combustion insecticidal steam fire extinguishing subsoiler

Abstract

The invention discloses a stubble wind tunnel type hydrogen-rich gasification combustion insecticidal steam extinguishing deep plougher, which comprises a deep plougher and a stubble wind tunnel type hydrogen-rich gasification furnace installed on the deep plougher, wherein the stubble wind tunnel type hydrogen-rich gasification furnace comprises a furnace body (42) for burning stubble, a wind gathering device (21) for introducing external airflow into the furnace body (42), an airflow distributor (22) for distributing the introduced airflow, a drip irrigation device (24) for dripping water into the airflow distributor (22), and a water vapor reforming catalytic reburning chamber (16) and a water vapor reforming catalytic reaction chamber (17) which are sequentially connected in the bottom of the furnace body (42), and a group of flame nozzles for burning and killing soil are arranged on the water vapor reforming catalytic reaction chamber (17). The invention has the advantages that the biomass energy pyrolysis technology and the wind energy physical technology of "funnel effect" are coupled to ensure safe natural air distribution, self-control furnace partition, series-parallel lock heat supply, machine external fire source self-extinguishing, and the burning, killing and fire extinguishing are integrated.

Description

Technical Field

[0001] This invention relates to the field of agricultural and forestry machinery technology, specifically to a deep pine stubble wind tunnel type hydrogen-rich gasification combustion insecticidal steam fire extinguishing machine. Background Technology

[0002] Currently, the accumulation of primitive microorganisms in agricultural and forestry soils is a crucial issue that urgently needs to be addressed for the sustainable development of agriculture, rural areas, and farmers.

[0003] Many companies in the United States and Germany have invented "ultra-high temperature flame weeding machines". The Chinese Patent Application Publication No. CN107466504.A discloses "a deep soil disinfection and deep tillage machine and method with flame deep insecticidal effect". It uses gas to kill insects and sterilize the deep tilled soil. However, gas insecticidal disinfection is costly and the high temperature flame can easily ignite stubble in the field. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned shortcomings by providing a deep pine stubble wind tunnel type hydrogen-rich gasification combustion insecticidal steam fire extinguishing machine.

[0005] This invention includes a deep tillage machine and a stubble-type hydrogen-rich gasification furnace installed on the deep tillage machine. The stubble-type hydrogen-rich gasification furnace includes...

[0006] The stove body used for burning firewood stubble,

[0007] An air-gathering device used to introduce external airflow into the furnace body.

[0008] An airflow distributor used to distribute the introduced airflow.

[0009] Drip irrigation system used to deliver water into the airflow distributor.

[0010] The bottom of the furnace body is equipped with a steam reforming catalytic re-combustion chamber and a steam reforming catalytic reaction chamber that are connected in sequence. The steam reforming catalytic reaction chamber is equipped with a set of nozzles for burning the soil.

[0011] A stubble dry distillation chamber is provided on one side of the furnace body, which connects the furnace body and the steam reforming catalytic reaction chamber. At the bottom of the deep pine machine, there is an iron plate box for limiting the burning range of the stubble wind tunnel type hydrogen-rich gasification furnace. Inside the iron plate box, there is a waste heat steam generator for reusing the burning heat energy. At the top of the iron plate box, there is a chimney for exhausting smoke.

[0012] There are two stubble-type hydrogen-rich gasification furnaces, which are installed symmetrically on the deep loosening machine, and the nozzles of both stubble-type hydrogen-rich gasification furnaces are located inside the iron plate box.

[0013] The nozzle includes a horizontal nozzle and a vertical nozzle. The horizontal nozzle is an arc-shaped structure that bends backward at one end of the bottom. The width of the top opening of the horizontal nozzle is greater than the width of the bottom opening. The horizontal nozzle is installed horizontally at the bottom of the steam reforming catalytic reaction chamber. A set of air inlets is provided on the side wall of the horizontal nozzle on the side opposite to the bending direction.

[0014] The longitudinal burner is an inverted trapezoidal structure with a top opening width greater than the bottom opening width. The longitudinal burner is installed longitudinally at the bottom of the steam reforming catalytic reaction chamber. One end of the longitudinal burner has a backward-sloping nozzle. A set of air inlets is provided on the longitudinal burner on the side opposite to the sloping direction of the nozzle. A transverse collision column d is provided inside the longitudinal burner. A grate is provided inside the top opening of both the transverse and longitudinal burners.

[0015] The subsoiler includes a subsoiler frame, which is assembled from a hinged front fixed frame and a rear movable frame. The front fixed frame is equipped with a height limiting wheel, a double-wing universal shovel, and a three-point suspension frame. The front of the rear movable frame is equipped with a subsoil shovel, and the rear of the rear movable frame is equipped with a tooth-type soil-crushing roller. The three-point suspension frame is equipped with a bidirectional hydraulic rod that controls the up-and-down swing of the rear movable frame. The iron plate box is installed at the bottom of the rear movable frame, and the stubble wind tunnel type hydrogen-rich gasification furnace is movably installed on the rear movable frame through a set of shock-absorbing springs.

[0016] The front fixed frame has adjusting screws on both sides to control the height of the height limiting wheel; there are two bidirectional hydraulic rods, which are symmetrically distributed in a V-shape; the top of the three-point suspension frame has a Y-shaped connecting seat, and the Y-shaped connecting seat has an installation groove. The front ends of the bidirectional hydraulic rods are movably connected to the installation groove of the Y-shaped connecting seat by pins, and the rear ends of the bidirectional hydraulic rods are movably connected to the rear movable frame by pins; the rear movable frame has an adjusting hole plate, and the tooth-type soil crushing roller has a connecting support frame. One end of the connecting support frame is hinged to the rear movable frame by a pin, and the connecting support frame has a limiting rod opposite to the adjusting hole plate.

[0017] The furnace body is equipped with an insulation layer and a refractory lining. The top and bottom of the furnace body are open. The air-gathering device is detachably installed on the top of the furnace body via a set of support legs, and a feeding gap is provided between it and the top opening of the furnace body. The bottom opening of the furnace body and the steam reforming catalytic reaction chamber are equipped with grate. The furnace body is divided into a low-temperature oxidation zone, a high-temperature oxidation zone, and a reduction zone from top to bottom. The airflow distributor is coaxially installed at the bottom of the air-gathering device and passes through the low-temperature oxidation zone, the high-temperature oxidation zone, and the reduction zone from top to bottom. The top of the stubble dry distillation chamber is equipped with an openable sealing cover. The upper side of the stubble dry distillation chamber is connected to the low-temperature oxidation zone of the furnace body through a pipe. The bottom end of the stubble dry distillation chamber is connected to the steam reforming catalytic reaction chamber. The height of the chimney is higher than the height of the air-gathering device.

[0018] The air-gathering device includes an outer prism frame and an inner prism frame with the same number of sides. The inner prism frame is coaxially installed inside the outer prism frame, and the outer prism frame and the inner prism frame are staggered vertically. The corresponding top edges of the outer prism frame and the corresponding edges of the inner prism frame are connected by air-gathering plates. The drip irrigation device is installed on the inner prism frame and located directly above the inner prism frame. The airflow distributor is coaxially installed at the bottom of the air-gathering device.

[0019] The airflow distributor includes a central main pipe and a set of low-temperature gasifying agent nozzles. The central main pipe is coaxially mounted at the bottom of the inner prism frame and communicates with the inner prism frame. A set of low-temperature gasifying agent nozzles is arranged in a ring around the central main pipe and communicates with the corresponding outer prism frame. The outlet of the low-temperature gasifying agent nozzles is located in the low-temperature oxidation zone. From top to bottom, the central main pipe has a set of high-temperature gasifying agent nozzles and a set of reduction zone gasifying agent nozzles arranged in a ring. The high-temperature gasifying agent nozzles are located in the high-temperature oxidation zone, and the reduction zone gasifying agent nozzles are located in the reduction zone, with their outlets extending into the steam reforming catalytic combustion chamber.

[0020] The drip irrigation device is a tangent function rotating body that is wide in the middle and narrow at both ends. The drip irrigation device has a drip valve at the bottom and a cover for adding water is threaded to the top of the drip irrigation device. An air inlet is also provided on the drip irrigation device located on one side of the cover.

[0021] The waste heat steam generator includes a water storage tank, which is installed inside an iron plate box. The iron plate box is equipped with a steam coil that connects to the water storage tank, and a set of steam fire extinguishing nozzles are installed on the steam coil.

[0022] The advantages of this invention are: This invention provides a coupling of biomass thermal pyrolysis technology and wind energy physics technology based on the "funnel effect," ensuring safe natural air distribution stratification, self-controlled furnace zoning, series-parallel interlocking heating, and external fire self-extinguishing. It has found a safe and green technical path for the on-site, timely, hydrogen-rich gasification, combustion for pest control, steam fire extinguishing, recycling, and utilization of agricultural and forestry waste, thereby increasing agricultural employment and reducing the input of fossil energy, electricity, fertilizers, pesticides, and labor costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 yes Figure 1 AAAA stepped sectional view.

[0025] Figure 3 yes Figure 1 BBB stepped sectional view.

[0026] Figure 4 This is a schematic diagram of the connection structure between the air gathering device and the airflow distributor.

[0027] Figure 5 This is a schematic diagram of the internal structure of the wind concentrator and airflow distributor.

[0028] Figure 6 This is a schematic diagram of a horizontal flame nozzle structure.

[0029] Figure 7 This is a schematic diagram of the longitudinal flame nozzle structure. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the embodiments of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, if terms such as "first" or "second" appear in the description of this invention, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0034] As shown in the attached drawings, the present invention includes a deep tillage machine and a stubble-type hydrogen-rich gasification furnace installed on the deep tillage machine.

[0035] Deep tillage machines are used for deep plowing of fields. The stubble wind tunnel-type hydrogen-rich gasification furnace burns the deeply tilled soil with the flames generated during the gasification and combustion of stubble. The waste heat steam generator uses the waste heat generated during the burning to produce steam, which is used to extinguish the burning materials and charcoal residue on the soil after burning.

[0036] The furnace body 42 is cylindrical and is made from a commonly used old oil drum.

[0037] The air-gathering device 21 is used to introduce and gather outside air to generate a rapid airflow into the furnace body 42.

[0038] The airflow distributor 22 is used to distribute the airflow introduced by the air-gathering device 21 from top to bottom to each section of the furnace body 42.

[0039] The water droplets from the drip irrigation device 24 are vaporized within the airflow distributor 22 following the airflow and then distributed to various sections within the furnace body 42 to participate in the reaction.

[0040] The steam reforming catalytic re-combustion chamber 16 re-combusts the tar-containing gases and toxic substances after the above reactions.

[0041] In the steam reforming catalytic reaction chamber 17, the charcoal after dry distillation in the stubble dry distillation chamber 31 is combined with the material after combustion in the steam reforming catalytic re-combustion chamber 16 for a second catalytic reaction and combustion. The flame after combustion is sprayed out from the nozzle to burn the soil.

[0042] The stubble dry distillation chamber 31 is semi-sealed and is used for stubble dry distillation. The gas from the dry distillation enters the furnace body 42 to participate in the combustion reaction, while the charcoal after dry distillation enters the steam reforming catalytic reaction chamber 17 to be used as a catalyst.

[0043] The iron plate box 70 is used to limit the sterilization range of the wood stubble wind tunnel type hydrogen-rich gasification furnace.

[0044] The height of the chimney 27 is greater than the height of the entire furnace body 42, and it is used to discharge the flue gas from the combustion inside the iron plate box 70. The upper part of the chimney 27 is connected to the air-collecting device 21 via a connecting plate to ensure its stability.

[0045] Preferably, in this case, there are two stubble-type hydrogen-rich gasification furnaces installed symmetrically on the deep tillage machine, and the nozzles of the two stubble-type hydrogen-rich gasification furnaces are located inside the iron plate box 70.

[0046] The flame nozzle is divided into a horizontal flame nozzle 29a and a vertical flame nozzle 29b. When installed, the vertical flame nozzle 29b is located behind the tip of the deep loosening shovel 5. Its length extends beyond the iron plate box 70 and can reach into the deep-turned soil trench. The flames it sprays can burn the trench walls and bottom at close range, and the burning time is guaranteed to be 2-3 seconds / cm².

[0047] When the horizontal flame nozzle 29a is installed, it is about 30mm above the ground. It performs shallow burning on the surface of the deeply turned soil from the cross-sectional direction, protecting the original ecological environment of some microorganisms in the deep soil.

[0048] In this case, the horizontal flame nozzle 29a is an arc-shaped structure with one end of the bottom bent in the opposite direction of the forward movement, and the width of the top opening of the flame nozzle is greater than the width of the bottom opening. A set of air inlets is provided on the side wall of the flame nozzle on the side opposite to the bending direction.

[0049] The top opening of the longitudinal nozzle 29b is wider than the bottom opening. Its bottom opening is provided with a nozzle 29c that is inclined to the opposite side of the forward direction. A set of air inlets is provided on the side plate on the side of the forward direction. Multiple transverse collision columns 29d are randomly provided on the lower inner side of the longitudinal nozzle for secondary crushing of the falling residual charcoal.

[0050] Both the horizontal burner nozzle 29a and the vertical burner nozzle 29b have flared air inlets with an outer diameter larger than the inner diameter, and are inclined inward and downward to facilitate airflow during mechanical movement to blow out the flame. Both the horizontal burner nozzle 29a and the vertical burner nozzle 29b are drawer-type movable installations on the steam reforming catalytic reaction chamber 17.

[0051] The specific structure of the subsoiler is as follows: the subsoiler frame 3 is assembled from a front fixed frame 3a and a rear movable frame 3b that are hinged together. The front fixed frame 3a is equipped with a height limiting wheel 4, a double-wing universal shovel 6 and a three-point suspension frame 1. The front end of the rear movable frame 3b is equipped with a subsoil shovel 5. In this case, the subsoil shovel 5 is a contour subsoil shovel. The rear end of the rear movable frame 3b is equipped with a tooth-type soil crushing roller 7. The bidirectional hydraulic rod 2 is used to control the rear movable frame 3b to lift upward. At the same time, it can press the rear movable frame 3b downward during operation to ensure the working efficiency of the tooth-type soil crushing roller 7.

[0052] The iron plate box 70 is installed at the bottom of the rear movable frame 3b. The front and bottom of the iron plate box 70 are open. The top of the iron plate box 70 is provided with a clearance hole for the stubble wind tunnel type hydrogen-rich gasification furnace. The lower end of the stubble wind tunnel type hydrogen-rich gasification furnace and the lower end of the stubble dry distillation chamber 31 both extend into the iron plate box 70. In actual installation, the furnace body 42 is connected to the steam reforming catalytic re-combustion chamber 16 by a flange, and the stubble dry distillation chamber 31 is connected to the steam reforming catalytic reaction chamber 17 by a flange. All flange connections in this case use multi-layer aluminum silicate fiber needle-punched felt as sealing gaskets, which can withstand high temperatures of 1260℃.

[0053] The stubble-type hydrogen-rich gasification furnace is movably mounted on the rear movable frame 3b via a set of shock-absorbing springs, which play a role in shock absorption and buffering during movement.

[0054] Height limiting wheel 4 is used to limit the height of the entire front end of the subsoiler. It is made of hollow iron wheel, which is lightweight and resistant to high temperature.

[0055] The dual-wing universal shovel 6 is used to cut stubble in the field, reduce the forward resistance of the deep tillage shovel 5, and reduce the diesel consumption of the tractor.

[0056] The deep tillage shovel 5 deeply tills the soil as it moves forward.

[0057] The wolf-tooth type soil crushing roller 7 is located at the very end of the entire equipment. It performs secondary crushing and compaction on the deeply turned soil to make the land level.

[0058] The three-point suspension frame 1 is used to connect with the tractor and serve as the traction mechanism for the entire machine. The bidirectional hydraulic rod 2 is used to control the lifting and lowering of the rear movable frame 3b. When not in use, the bidirectional hydraulic rod 2 lifts one end of the entire rear movable frame 3b upwards to facilitate equipment movement.

[0059] Preferably, the front fixed frame 3a is provided with adjusting screws on both sides to control the height of the height limiting wheel 4, and the height of the height limiting wheel 4 can be adjusted by adjusting the screws.

[0060] Preferably, there are two bidirectional hydraulic rods 2, which are symmetrically distributed in a V-shape to improve the stability of their pulling force and downward pressure. The top end of the three-point suspension frame 1 is provided with a Y-shaped connecting seat 2b, and the Y-shaped connecting seat 2b is provided with an installation groove. The front ends of the bidirectional hydraulic rods 2 are respectively movably connected to the installation groove of the Y-shaped connecting seat 2b by pins, and the rear ends of the bidirectional hydraulic rods 2 are respectively movably connected to the rear movable frame 3b by pins. The rear movable frame 3b is provided with an adjusting hole plate 9, and the tooth-type soil crushing roller 7 is provided with a connecting support frame 8. One end of the connecting support frame 8 is hinged to the rear movable frame 3b by a pin, and the connecting support frame 8 is provided with a limiting rod 8a opposite to the adjusting hole plate 9.

[0061] The height of the toothed soil-crushing roller 7 is adjusted by coordinating the orifice plate 9 and the connecting support frame 8. Support legs 41 are hinged to both sides of the rear movable frame 3b, providing support and stability to the entire equipment when the machine is stopped. The support legs 41 are retracted during operation. The furnace body 42 has an insulation layer and a refractory lining. The refractory lining uses ordinary clay refractory castable, which can be cast on-site using simple molds or custom-made, offering high temperature resistance and low cost.

[0062] The top and bottom of the furnace body 42 are open. The air-gathering device 21 is detachably installed on the top of the furnace body 42 by a set of support legs, and there is a feeding gap between it and the top opening of the furnace body 42. During operation, the material is fed through the feeding gap.

[0063] A grate is provided on the bottom opening of the furnace body 42 and on the steam reforming catalytic reaction chamber 17;

[0064] The furnace body 42 is divided into a low-temperature oxidation zone 42a, a high-temperature oxidation zone 42b, and a reduction zone 42c from top to bottom. The temperature of the low-temperature oxidation zone 42a gradually transitions from 100 to 250℃ from top to bottom. It is mainly used to dry the stubble of the feed material, which can reduce the volume of the stubble and make it sink.

[0065] The temperature in the high-temperature oxidation zone 42b transitions from 250 to 1000℃ from top to bottom, mainly involving intense oxidation of the wood stubble and thermal decomposition of the wood stubble to generate gas.

[0066] The temperature in the reduction zone 42c gradually decreases from 900-800℃ from top to bottom, reducing the gas generated by the high-temperature reaction of the wood stubble to produce a higher calorific value and gasifying the tar.

[0067] The airflow distributor 22 is installed at the bottom of the air-gathering device 21. The top of the stubble dry distillation chamber 31 is equipped with an openable sealing cover. The upper side of the stubble dry distillation chamber 31 is connected to the low-temperature oxidation zone 42a of the furnace body 42 through a pipe. The pipe is threaded onto the stubble dry distillation chamber 31 for easy disassembly.

[0068] One end of the bottom of the wood stubble dry distillation chamber 31 is connected to the steam reforming catalytic reaction chamber 17.

[0069] The specific structure of the wind concentrator 21 includes an outer prism frame 22a and an inner prism frame 22b with the same number of sides, and the inner prism frame 22b is coaxially installed inside the outer prism frame 22a.

[0070] The preferred outer prism frame 22a and inner prism frame 22b of this invention are both octagonal, so that wind from any direction can quickly enter the wind gathering device 21.

[0071] Furthermore, the outer prism frame 22a and the inner prism frame 22b are staggered vertically. The corresponding top edges of the outer prism frame 22a and the corresponding edges of the inner prism frame 22b are connected by the wind-gathering plate 22c. The wind-gathering plate 22c is connected to the outer prism frame 22a and the inner prism frame 22b by bolts, which facilitates installation and disassembly.

[0072] The entire wind-gathering device 21 has a tapered structure with a narrow bottom and a wide top.

[0073] The drip irrigation device 24 is installed on the inner prism frame 22b and is located directly above the inner prism frame 22b.

[0074] Preferably, the drip irrigation device 24 is a tangent function rotating body that is wide in the middle and narrow at both ends, i.e., a streamlined drip irrigation device with low resistance. It is placed vertically and has a drip irrigation valve at the bottom and a cap for adding water connected by threads at the top. In actual processing, the top of the cap is spherical to reduce resistance. The entire drip irrigation device 24 is formed by polyester blow molding.

[0075] The drip irrigation device 24 located on one side of the cover has a small-diameter air inlet.

[0076] The airflow distributor 22 is coaxially mounted at the bottom of the air-gathering device 21 and passes through the low-temperature oxidation zone 42a, the high-temperature oxidation zone 42b, and the reduction zone 42c from top to bottom.

[0077] The airflow distributor 22 includes a central main pipe 20 and a set of low-temperature gasifying agent nozzles 19a. The central main pipe 20 is coaxially mounted at the bottom of the inner prism frame 22b and communicates with the interior of the inner prism frame 22b. A set of low-temperature gasifying agent nozzles 19a is arranged in a ring around the central main pipe 20 and communicates with the corresponding outer prism frame 22a. The outlet of the low-temperature gasifying agent nozzles 19a is located in the low-temperature oxidation zone 42a. A set of high-temperature gasifying agent nozzles 19b and a set of reduction zone gasifying agent nozzles 19c are arranged in a ring from top to bottom on the central main pipe 20. The high-temperature gasifying agent nozzles 19b are located in the high-temperature oxidation zone 42b, and the reduction zone gasifying agent nozzles 19c are located in the reduction zone 42c, with their outlets extending into the steam reforming catalytic combustion chamber 16.

[0078] The number of cryogenic vaporizing agent nozzles 19a is preferably eight, corresponding to the air-gathering device 21.

[0079] The number of high-temperature gasifying agent nozzles 19b and reduction zone gasifying agent nozzles 19c shall not exceed six, in order to ensure their wind speed.

[0080] The waste heat steam generator includes a water storage tank 39, which is installed inside an iron plate box 70. The iron plate box 70 is equipped with a steam coil that connects to the water storage tank 39, and a set of steam extinguishing nozzles 11 are installed on the steam coil.

[0081] The steam reforming catalytic reaction chamber 17 and the water storage tank 39 are both connected to the iron plate box 70 by bolts through a hanging bracket.

[0082] The present invention utilizes the following physical principles:

[0083] ① A blower powered by natural wind energy instead of electricity.

[0084] This invention solves the problem of requiring a 220V AC power supply for blowers in mobile agricultural and forestry machinery used in the field. It directly utilizes the "wind funnel phenomenon" wind energy physics technology. The top of the "wind funnel" is an air inlet facing all directions. Wind from any direction can be caught in the large pockets at the top of the funnel. Intriguingly, as the wind moves forward within these pockets, its speed increases significantly as the pockets narrow, much like a river flowing faster in a narrow channel. The large pockets in the funnel accelerate the wind; even a light breeze can be amplified into a rapid airflow, driving a generator at the bottom of the pocket to produce electricity. Physics describes the "funnel effect" for fluids, where the fluid velocity increases as it moves from a larger cross-sectional area to a smaller one, similar to water flowing through a funnel. Physics defines the relationship between density ρ, velocity V, and pipe cross-sectional area S for a constant flow as: ρ1·V1·S1 = ρ2·V2·S2. This also reflects the continuity equation in fluid mechanics. This invention directly utilizes the "wind funnel" phenomenon to introduce external wind into the furnace body, ensuring that the wind returns to nature after the flame insecticidal steam extinguishing and zero-emission flue gas are successfully completed in this case.

[0085] ②Thermal decomposition conversion principle,

[0086] Duan Jia and Luo Yonghao, in their experimental research on the characteristics of biogasification and recombustion, demonstrated that biomass is the only carbon-based renewable energy source. Burning biomass fuel can achieve zero CO2 emissions. Biomass reuse is highly effective, enabling power generation, the synthesis of new compounds, and the reduction of nitrogen oxides (NOx), sulfur oxides (SOx), and particulate matter emissions. Therefore, biomass energy is a major renewable energy source for addressing fossil fuel shortages and pollution problems. Recombustion after biomass gasification is more effective at reducing NOx than direct combustion. The ash produced by biomass gasification and recombustion is not significantly different from the fly ash produced without recombustion, which is beneficial for fly ash utilization. Therefore, biomass gasification and recombustion has its advantages.

[0087] The gasifying agent required for the pyrolysis conversion system is provided by heating the boiler through a pressure vessel to supply heat and gas. Guo Feiqiang's conclusion in "Experiment on the Pyrolysis Characteristics of Biomass Gasification Tar under Active Gas Distribution" points out that "active gas distribution realizes the active control of the gasification medium feed rate, thereby controlling the reaction state of the gasifier, which can promote the full pyrolysis of tar, convert it into combustible gas, and promote the secondary reforming reaction of the gas, thereby improving the gas quality."

[0088] The innovation of this invention patent lies in further designing the active gas distribution mode into a "wind tunnel" type natural preparation mode for the required high-temperature gasifying agent, ensuring the existence of radial and axial gas pressure distribution cloud maps in the main reaction zone of the hydrogen-rich gasifier; efficient and stable operation, avoiding "vacuuming" and "burn-through" phenomena, achieving stable combustion conditions, "no backfire", "no flameout" and "no explosion".

[0089] Water droplets enter the air-gathering device, couple and vaporize, and participate in combustion. Combined with steam fire extinguishing and deep tillage machine in the same device, it reduces the cost of device design, manufacturing, installation and commissioning. At the same time, the corrosion resistance, ablation and heat preservation conditions inside and outside the high temperature micro-positive pressure vessel are much better, which extends the service life of the equipment. In the reverse combustion of wood stubble waste, it improves the combustion environment, reduces the amount of sewage discharge, and enhances the heat conversion efficiency.

[0090] Water droplets in the drip irrigation system, driven by their own gravity (free fall) and carried by the natural wind, enter the air-gathering device and reach the low-temperature oxidation zone 42a at a flow rate of ≥0.25-0.5m / s, generating low-temperature preheated air and water vapor at ≥150℃. The atomized gasifying agent participates in the pyrolysis and gasification of the wood stubble waste. The subsequent low-temperature gasifying agent quickly reaches the high-temperature gasifying agent nozzle 19b, where its temperature instantly reaches ≥700℃, participating in the oxidation reaction in the high-temperature oxidation zone. Subsequently, the gasifying agent arrives at the gasifying agent nozzle 19c in the reduction zone and is immediately introduced into the steam reforming catalytic combustion chamber 16 at ≥800-1000℃, generating several chemical reactions, including intense gas-gas reactions, solid-solid reactions, and gas-solid reactions. Simultaneously, residual charcoal sliding down from the grate at the bottom of the furnace body 42 and furnace ash containing a large amount of catalytically active alkaline metals such as CaO, MgO, and K2O also enter. Additionally, self-produced dry-distilled charcoal with a large porosity and surface area falls from the wood stubble dry distillation chamber 31 and is squeezed through the grate of the steam reforming catalytic reaction chamber 17. At this moment, solids, liquids, and gases from multiple directions converge in one furnace at a temperature of 900-970℃. The high-temperature, slightly positive-pressure gas, liquid, and solid flow, free of tar pollution, is instantly ejected from the burner nozzle through heat conduction, convection, and radiation, completing the insecticidal and sterilization process in approximately ≥2-3 seconds per cm². The remaining materials will fall into the soil that has just been treated by the deep tillage machine, which has deeply tilled the plow pan and opened up the deep soil layers (≥380mm) with contour-following "rat tunnels," improving the soil's ability to retain moisture, water, and fertilizer, and improving the soil's aggregate structure, which will promote the development of new root systems for crops. The surface of the old root stubble will be carbonized, and the inner core will be dehydrated and dried, turning it into organic fertilizer. This includes the original microorganisms, pests, insect eggs, aerobic and anaerobic bacteria, and organic and inorganic pesticide residues that were originally adsorbed in the old root stubble system, all of which will be burned, achieving the ultimate environmental protection goal of "fixing carbon in the ground." The purified flue gas is contained within the iron plate box 70 and then discharged into the atmosphere through the chimney 27, achieving zero carbon emissions. The tar is converted into combustible gas through thermal cracking and gasification, and reformed with steam, eliminating the hazards of tar while effectively utilizing its thermal energy. This avoids alkali metal corrosion of the equipment caused by excessively high reaction bed temperatures. The flame penetrates the already deeply loosened soil layer, increasing the contact time between the flame, steam, and soil, thus enhancing the soil sterilization effect. More importantly, the soil is not scorched by the flame, hot air, steam, or fire. Most of the soil that comes into contact with the flame retains countless aerobic, anaerobic, and microbial bacteria. As stated on the Huinong website in "Research and Application of High-Temperature Flame Sterilization Technology in the Prevention and Control of Soil Diseases and Pests in Farmland," the short soil exposure time has no impact on the organic matter or nutrients in the soil. To ensure a longer-lasting and more reliable sterilization effect, it should be combined with microbial control technology. After crop transplanting, targeted microbial agents can be applied through fertigation or drip irrigation, using beneficial bacteria to suppress harmful bacteria, achieving a control effect for more than 10 months.

[0091] Specific installation method for the flame nozzle:

[0092] During installation, the longitudinal flame nozzle 29b is located directly behind the subsoil shovel 5, and its opening direction is opposite to that of the subsoil shovel 5. This is to protect the high-temperature strength of the shovel handle and tip, and prevent the steel from annealing and becoming unusable. Secondly, at the same tractor traction speed of ≥0.6-1.2m / s, it can extend the flame insecticidal time to 2-3s / cm² on the walls and bottom of the open deep trench soil with a depth of ≥380mm and a width of ≥80-120mm opened by the shovel handle and tip, thereby improving the flame insecticidal efficiency and ensuring that the subsoiler's tillage width reaches the "end of the field" longitudinally and the bottom of the plow layer, i.e., "turning the bottom", vertically.

[0093] The lateral flame nozzle 29a sprays flames in the opposite direction to the double-wing universal shovel 6, preventing the flames from burning the shovel 6 and protecting its high-temperature strength, thus preventing the heat-treated steel from being annealed and scrapped. The lateral flame nozzle 29a is positioned approximately 30mm off the ground. Secondly, under the same tractor traction speed of ≥0.6-1.2m / s, it can completely cut through old stubble within a lateral width ≥385mm and a depth ≤70-80mm opened by the double-wing universal shovel, shovel handle, and shovel tip. This reduces the resistance and entanglement of the double-headed chisel-type deep tillage shovel, shovel handle, and shovel tip, improves the high-temperature flame insecticidal efficiency, reduces tractor fuel consumption, and ensures the deep tillage machine's lateral width reaches the "field edge."

[0094] The front and bottom of the iron plate box 70 are open, and the lower rear side of the iron plate box 70 is an inwardly inclined bent plate with an optimal inclination angle of 60°, which facilitates the upward entry of flue gas into the chimney 27. Its functions include ① a reinforcing plate to increase the compressive and tensile strength of the deep tillage machine frame 3, ② serving as the skirt base plate of the stubble wind tunnel type hydrogen-rich gasification furnace, and ③ the semi-open furnace body air chamber of the entire device, which serves as a passage for hot flue gas in the semi-sealed chimney 27, generating a certain negative pressure to help the various gases blown down from the wind gathering device 21 and the airflow distributor 22 to be strongly drawn in. In this case, it is preferred to have two stubble wind tunnel type hydrogen-rich gasification furnaces symmetrically installed in the deep tillage machine, with each stubble wind tunnel type hydrogen-rich gasification furnace connected in parallel with two chimneys 27 (the chimney elevation above the ground is ≥2.4, with a φ120mm×φ159mm bell mouth) to form a complete air path system.

[0095] Flame weeding can eliminate the regrowth of underground taproots, but we overlook the environmental problems caused by disposable propane cylinders. Proper and safe use of flame weeders is essential to ensure the safety of life, property, and garden vegetation.

[0096] This case incorporates fireproof, fire-extinguishing, and explosion-proof components, such as an explosion-proof window 28 and a funnel-shaped air inlet 30 on the steam reforming catalytic reaction chamber 17. The funnel-shaped air inlet 30 also serves as an observation port, facilitating observation of the combustion situation inside the steam reforming catalytic reaction chamber 17. The explosion-proof window 28 is connected to the steam reforming catalytic reaction chamber 17 via a flange. The steam reforming catalytic reaction chamber 17 is equipped with an inclined grate, facilitating the entry of residual charcoal from the stubble dry distillation chamber 31. The small gap between the iron plate box 70 and the ground allows steam fire extinguishing nozzles 11 to be distributed inside the left, right, and rear sealing plates of the iron plate box 70, effectively extinguishing residual charcoal and slag in the field within the coverage area of ​​the iron plate box 70.

[0097] The iron plate box 70 serves as the skirt base plate of the furnace body 42, providing sealing and enhancing the mechanical tensile and compressive strength of the entire device, preventing collapse, and providing heat insulation. The steam reforming catalytic reaction chamber 17 is an open container, posing no risk of explosion.

[0098] The overall design of this device adopts a modular assembly method, which allows for easy and labor-saving interchange of major components.

[0099] Working principle:

[0100] ① Add a mixture of 70% (by weight) wood chips and 30% (by weight) root stubble, grass and other agricultural and forestry waste (φ30×φ20mm) through the feeding gap between the furnace body 42 and the air-gathering device 21, and cover the high-temperature oxidation zone 42b, then prepare for ignition.

[0101] ② Fill the mixture of 85% wood chips and 15% agricultural and forestry waste (φ30×φ20mm) from the top sealed cover of the wood stubble dry distillation chamber 31, and add it to the steam reforming catalytic reaction chamber 17 to 90% of its volume. Prepare to ignite at the funnel-shaped air inlet 30.

[0102] ③ Fill the drip irrigation device 24 with water. The storage tank of the drip irrigation device 24 can hold 3000 ml of water. Perform a test drip. The working condition is normal. The optimal air equivalent ER ≥ 0.263 (i.e., the ratio of air consumption to fuel weight); the water vapor to fuel mass ratio (S / B), S / B = water vapor mass / fuel mass ratio ≥ 0.07.

[0103] ④ First, ignite the agricultural and forestry waste at the top of the high-temperature oxidation zone 42b through the feeding gap. After ignition, continue adding material into the furnace body 42 until the low-temperature oxidation zone 42a is full. Once the fire has stabilized, the remaining agricultural and forestry waste will ignite rapidly on its own. (Add more material only when the agricultural and forestry waste reaches 50% of the volume). The boiler operator should maintain the volume at more than 80% depending on the operating conditions to ensure the safe operation of the equipment.

[0104] ⑤ The boiler operator (or tractor driver) should observe the working conditions through the observation hole at any time to ensure that no people or other foreign objects are standing in front of the explosion-proof window 28 to eliminate safety hazards.

[0105] ⑥ When the flame nozzles (horizontal flame nozzle 29a and longitudinal flame nozzle 29b) spontaneously ignite and the chimney 27 emits almost colorless blue smoke, the started tractor can be switched to normal operation.

[0106] ⑦ The driver can stop working at any time. When the tractor stops moving forward or refuels, the equipment will lose traction speed (initial speed) and wind speed and temporarily slow down. When the driver finishes get off work, he only needs to turn the drip irrigation device on full 24 for 1-2 minutes. The entire device will stop working and shut down after losing wind speed and initial speed of ≥0.6m / s-1.2m / s.

[0107] ⑧ It is strictly forbidden to have any open flames outside the metal box (70 cm away) to prevent fires. Unauthorized personnel are strictly prohibited from approaching to avoid injury.

[0108] The entire machine measures 1560 mm in length, 2620 mm in width, and 2450 mm in height.

Claims

1. A stubble-type wind tunnel-type hydrogen-rich gasification combustion insecticidal steam fire extinguishing deep pine machine, characterized in that... It includes a deep tillage machine and a stubble wind tunnel type hydrogen-rich gasification furnace installed on the deep tillage machine. The stubble wind tunnel type hydrogen-rich gasification furnace includes a furnace body (42) for burning stubble, a wind-gathering device (21) for introducing external airflow into the furnace body (42), an airflow distributor (22) for distributing the introduced airflow, and a dripper (24) for dripping water into the airflow distributor (22). The bottom of the furnace body (42) is provided with a steam reforming catalytic re-combustion chamber (16) and a steam reforming catalytic reaction chamber (17) connected in sequence. The steam reforming catalytic reaction chamber (17) is provided with a set of nozzles for burning the soil. A stubble dry distillation chamber (31) is provided on one side of the body (42) to connect the furnace body (42) and the steam reforming catalytic reaction chamber (17). The bottom of the deep pine machine is provided with an iron plate box (70) for limiting the burning range of the stubble wind tunnel type hydrogen-rich gasification furnace. The iron plate box (70) is provided with a waste heat steam generator for reusing the burning heat energy. The top of the iron plate box (70) is provided with a chimney (27) for exhausting smoke. The stubble dry distillation chamber (31) is semi-sealed and is used for stubble dry distillation. The gas from the dry distillation enters the furnace body (42) to participate in the combustion reaction. The charcoal after dry distillation enters the steam reforming catalytic reaction chamber (17) and is used as a catalyst. The nozzle includes a horizontal nozzle (29a) and a vertical nozzle (29b). The horizontal nozzle (29a) is an arc-shaped structure with one end bent backward, and the width of the top opening of the horizontal nozzle (29a) is greater than the width of the bottom opening. The horizontal nozzle (29a) is horizontally installed at the bottom of the steam reforming catalytic reaction chamber (17), and a set of air inlets is provided on the side wall of the horizontal nozzle (29a) on the side opposite to the bending direction. The vertical nozzle (29b) has a top opening width greater than the bottom opening width. The structure is an inverted trapezoidal shape with a longitudinal burner (29b) installed longitudinally at the bottom of the steam reforming catalytic reaction chamber (17). The bottom end of the longitudinal burner (29b) is provided with a backward-inclined nozzle (29c). A set of air inlets is provided on the longitudinal burner (29b) on the side opposite to the inclination direction of the nozzle (29c). A transverse collision column (29d) is provided inside the longitudinal burner (29b). A grate is provided inside the top opening of both the transverse burner (29a) and the longitudinal burner (29b). The furnace body (42) is provided with an insulation layer, and the furnace body (42) is provided with a refractory lining. The top and bottom of the furnace body (42) are open. The air-gathering device (21) is detachably installed on the top of the furnace body (42) through a set of support legs, and there is a feeding gap between it and the top opening of the furnace body (42). The bottom opening of the furnace body (42) and the steam reforming catalytic reaction chamber (17) are provided with grate. The furnace body (42) is divided into a low-temperature oxidation zone (42a), a high-temperature oxidation zone (42b) and a reduction zone (42c) from top to bottom. The airflow distribution is as follows: The device (22) is coaxially installed at the bottom of the air-gathering device (21) and passes through the low-temperature oxidation zone (42a), high-temperature oxidation zone (42b) and reduction zone (42c) from top to bottom. The top of the stubble dry distillation chamber (31) is equipped with an openable sealing cover. The upper side of the stubble dry distillation chamber (31) is connected to the low-temperature oxidation zone (42a) of the furnace body (42) through a pipe. The bottom end of the stubble dry distillation chamber (31) is connected to the steam reforming catalytic reaction chamber (17). The height of the chimney (27) is higher than the height of the air-gathering device (21). The air-gathering device (21) includes an outer prism frame (22a) and an inner prism frame (22b) with the same number of sides. The inner prism frame (22b) is coaxially installed inside the outer prism frame (22a), and the outer prism frame (22a) and the inner prism frame (22b) are staggered vertically. The corresponding top edges of the outer prism frame (22a) and the corresponding edges of the inner prism frame (22b) are connected by an air-gathering plate (22c). The drip irrigation device (24) is installed on the inner prism frame (22b) and located directly above the inner prism frame (22b). The airflow distributor (22) is coaxially installed at the bottom of the air-gathering device (21). The airflow distributor (22) includes a central main pipe (20) and a set of low-temperature gasifying agent nozzles (19a). The central main pipe (20) is coaxially installed at the bottom of the inner prism frame (22b) and communicates with the inner prism frame (22b). A set of low-temperature gasifying agent nozzles (19a) is arranged in a ring around the central main pipe (20) and communicates with the corresponding outer prism frame (22a). The outlet of the low-temperature gasifying agent nozzles (19a) is located in the low-temperature oxidation zone (42a). A set of high-temperature gasifying agent nozzles (19b) and a set of reduction zone gasifying agent nozzles (19c) are arranged in a ring from top to bottom on the central main pipe (20). The high-temperature gasifying agent nozzles (19b) are located in the high-temperature oxidation zone (42b), and the reduction zone gasifying agent nozzles (19c) are located in the reduction zone (42c). Their outlet ends extend into the steam reforming catalytic re-combustion chamber (16). The drip irrigation device (24) is a tangent function rotating body that is wide in the middle and narrow at both ends. The drip irrigation device (24) is equipped with a drip valve at the bottom and a cover for adding water is threaded to the top of the drip irrigation device (24). An air inlet is provided on the drip irrigation device (24) located on one side of the cover. The waste heat steam generator includes a water storage tank (39), which is installed in a steel plate box (70). The steel plate box (70) is equipped with a steam coil that connects to the water storage tank (39), and a set of steam extinguishing nozzles (11) are provided on the steam coil.

2. The stubble-type hydrogen-rich gasification combustion insecticidal steam fire extinguishing deep pine machine according to claim 1, characterized in that... There are two stubble-type hydrogen-rich gasification furnaces, which are installed symmetrically on the deep sloughing machine, and the nozzles of the two stubble-type hydrogen-rich gasification furnaces are located inside the iron plate box (70).

3. The stubble-type hydrogen-rich gasification combustion insecticidal steam fire extinguishing deep pine machine according to any one of claims 1 or 2, characterized in that... The subsoiler includes a subsoiler frame (3), which is assembled from a front fixed frame (3a) and a rear movable frame (3b) that are hinged together. The front fixed frame (3a) is equipped with a height limiting wheel (4), a double-wing universal shovel (6) and a three-point suspension frame (1). The front end of the rear movable frame (3b) is equipped with a subsoil shovel (5), and the rear end of the rear movable frame (3b) is equipped with a tooth-type soil crushing roller (7). The three-point suspension frame (1) is equipped with a two-way hydraulic rod (2) that controls the up and down swing of the rear movable frame (3b). The iron plate box (70) is installed at the bottom of the rear movable frame (3b). The stubble wind tunnel type hydrogen-rich gasification furnace is movably installed on the rear movable frame (3b) through a set of shock-absorbing springs.

4. The stubble wind tunnel type hydrogen-rich gasification combustion insecticidal steam fire extinguishing deep pine machine according to claim 3, characterized in that... The front fixed frame (3a) is provided with adjusting screws on both sides to control the height of the height limiting wheel (4); there are two bidirectional hydraulic rods (2) and they are distributed symmetrically in a V shape. The top end of the three-point suspension frame (1) is provided with a Y-shaped connecting seat (2b). The Y-shaped connecting seat (2b) is provided with an installation groove. The front ends of the bidirectional hydraulic rods (2) are respectively connected to the installation groove of the Y-shaped connecting seat (2b) by pins. The rear ends of the bidirectional hydraulic rods (2) are respectively connected to the rear movable frame (3b) by pins. The rear movable frame (3b) is provided with an adjusting hole plate (9). The tooth-type soil crushing roller (7) is provided with a connecting support frame (8). One end of the connecting support frame (8) is hinged to the rear movable frame (3b) by a pin. The connecting support frame (8) is provided with a limiting rod (8a) opposite to the adjusting hole plate (9).

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