Straw rotten solid bacteria agent granule scattering device

Abstract

The application discloses a straw rotting solid bacterial agent granule scattering device, and relates to the technical field of agricultural machines, which comprises a bacterial agent supply unit, a sorting unit, a mixing unit and a wetting unit. The bacterial agent supply unit is used for storing and quantitatively outputting solid bacterial agent granules. The sorting unit is arranged on a straw spraying path of a straw treatment device and is used for intercepting and guiding large-diameter straw granules while allowing small-diameter materials to pass. The mixing unit is located below a discharge port of the bacterial agent supply unit and is in butt joint with a discharge side of the sorting unit, and is used for receiving the solid bacterial agent granules output by the bacterial agent supply unit and the large-diameter straw granules guided by the sorting unit, and forcibly mixing the two. The wetting unit is used for spraying water to the materials in the mixing unit. Through the synergistic effect of sorting, forced mixing and wetting, the application realizes accurate combination of the bacterial agent and target straw, improves the utilization rate of the bacterial agent, shortens the activation time of the bacterial agent and improves the rotting efficiency.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a straw composting solid microbial agent granule spreading device. Background Technology

[0002] In agricultural production, returning straw to the field is an important measure to achieve soil fertility improvement and sustainable agricultural development. To accelerate the decomposition and degradation of straw, it is usually necessary to apply biological agents during the straw returning process. Existing straw treatment equipment mainly uses a simple mechanical spreading method to apply solid microbial agent granules to the field, which presents the following technical problems: First, the crushed straw material contains large-diameter straw particles, fine dust, and impurities. Existing spreading devices lack the function of sorting the particle size of the material. After the inoculant particles are directly spread, a large amount of inoculant is scattered on the soil surface with the fine dust. The large-diameter straw particles have a large surface area and are unevenly distributed, resulting in a limited contact area with the inoculant. This leads to inaccurate action points of the inoculant, waste of inoculant, and affects the composting effect.

[0003] Secondly, in existing application devices, the inoculant and straw are distributed by gravity alone, lacking effective physical intervention. The inoculant particles are difficult to mix evenly with the target straw particles, resulting in uneven distribution and further reducing the effective contact rate between the inoculant and straw.

[0004] In addition, solid microbial agents require a certain amount of time to activate microbial activity after application. Existing devices cannot provide suitable start-up conditions for the microbial agents during operation. The start-up time of the microbial agents in a dry state is relatively long, which affects the composting efficiency.

[0005] In summary, existing straw treatment equipment suffers from problems such as insufficient contact between the inoculant and the straw, inaccurate application, and slow start-up during the inoculant application process, which urgently need improvement.

[0006] The above background information is provided only to aid in understanding the concept and technical solution of this invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Summary of the Invention

[0007] The purpose of this invention is to provide a straw composting solid microbial agent granule spreading device to solve the problems existing in the prior art, so as to enable the microbial agent to fully contact the straw, act precisely and start quickly, thereby effectively improving the straw composting efficiency.

[0008] To achieve the above objectives, the present invention provides the following solution: A straw composting solid microbial agent granule spreading device includes: The microbial agent supply unit is used to store and quantitatively output solid microbial agent granules; The sorting unit is located on the straw spraying path of the straw processing equipment to intercept and guide large-diameter straw particles while allowing small-diameter materials to pass through. The mixing unit is located below the discharge port of the microbial agent supply unit and is connected to the discharge side of the sorting unit. It is used to receive the solid microbial agent particles output by the microbial agent supply unit and the large-diameter straw particles guided by the sorting unit, and to forcibly mix the two. A wetting unit is used to spray water onto the materials in the mixing unit.

[0009] In one exemplary embodiment, the sorting unit includes a shielding net, which is inclinedly disposed on the straw spraying path, and its lower end is connected to the mixing unit.

[0010] In one exemplary embodiment, the shielding net has multiple sieve holes for separating fine dust and straw particles.

[0011] In one exemplary embodiment, the mixing unit includes a mixer and a mixing shaft, the mixing shaft being rotatably disposed inside the mixer for forcibly mixing the materials inside by rotation.

[0012] In one exemplary embodiment, the mixer has a bottom wall and multiple side walls, with the side closest to the straw processing equipment being open for discharging the mixed material; the side wall of the mixer away from the straw processing equipment is connected to the sorting unit for receiving guided large-diameter straw particles.

[0013] In one exemplary embodiment, the wetting unit includes a water spraying system, wherein the nozzle of the water spraying system is disposed at the rear of the mixer and sprays water toward the interior of the mixer.

[0014] In one exemplary embodiment, the mixing shaft is driven by a motor, and its rotation direction is set toward the side wall of the mixing unit that receives large-diameter straw particles, so as to prolong the material mixing time.

[0015] In an exemplary embodiment, the microbial agent supply unit includes an outer groove wheel-type microbial discharge box, and an outer groove wheel fertilizer distributor is provided at the fertilizer outlet of the outer groove wheel-type microbial discharge box. The quantitative output of solid microbial agent particles is achieved by controlling the rotation speed of the outer groove wheel.

[0016] In an exemplary embodiment, the mixing unit, sorting unit, and wetting unit are all installed at the tail end of the straw processing equipment and correspond to the position of the straw spray outlet 2 of the straw processing equipment.

[0017] In one exemplary embodiment, the amount of water sprayed by the wetting unit is configured to keep the mixed material moist and granular, and is used only to activate the microbial activity of the solid inoculant particles.

[0018] The present invention achieves the following technical effects compared to the prior art: 1. Improved precision of microbial agent application and reduced waste: By incorporating a sorting unit, the crushed straw material can be effectively sorted, intercepting large-diameter straw particles and guiding them to the mixing unit, while allowing fine dust and other impurities to pass through. This design enables the microbial agent to act concentrated on the target large-diameter straw particles, avoiding waste caused by the agent scattering with dust and improving the efficiency of microbial agent use.

[0019] 2. Achieve uniform mixing of microbial agent and straw: By setting up a mixing unit that connects with the sorting unit, it receives large-diameter straw particles and microbial agent output from the microbial agent supply unit, and forcibly mixes them. This overcomes the shortcomings of existing technologies that rely solely on gravity for natural distribution, significantly increases the contact area between the microbial agent and straw, and provides favorable conditions for subsequent composting and degradation.

[0020] 3. Shorten the activation time of microbial agents: By setting up a wetting unit to spray water into the materials in the mixing unit, the dry solid microbial agents reach the appropriate humidity conditions before being applied to the field, which effectively shortens the activation time of the microbial agents, ensures that the microbial agents can quickly enter the degradation state, and improves the decomposition efficiency.

[0021] 4. Achieve precise and efficient application of microbial agents: The quantitative output of the microbial agent supply unit, the particle size screening of the sorting unit, the forced stirring of the mixing unit, and the humidity regulation of the wetting unit work together to form an integrated microbial agent application solution. This achieves precise combination of microbial agents and target straw, reduces resource waste, and optimizes the operation effect. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the straw composting solid microbial agent granule spreading device disclosed in a specific embodiment of the present invention; Figure 2 for Figure 1 The main view of the straw processing equipment is omitted. Figure 3 This is a schematic diagram showing the flow of straw. The components include: 1. Sorting unit; 2. Straw spray outlet; 3. Water tank; 4. Pipeline; 5. Microbial agent supply unit; 6. Mixing unit; 7. Rear body; 8. Sprayer; 9. Discharge port; 10. Mixing shaft; and 11. Motor. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] The purpose of this invention is to provide a straw composting solid microbial agent granule spreading device to solve the problems existing in the prior art, so that the microbial agent can fully contact the straw, act precisely and start quickly, thereby effectively improving the straw composting efficiency.

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] This embodiment provides a straw composting solid microbial agent granule spreading device, which is installed at the tail end of the straw treatment equipment and corresponds to the straw spray outlet 2 of the straw treatment equipment. It is used to simultaneously complete the quantitative supply of solid microbial agent, the sorting of straw granules, the forced mixing of microbial agent and straw, and the humidity adjustment during the straw returning operation, thereby achieving precise combination and efficient composting of microbial agent and target straw.

[0028] Please refer to Figures 1 to 3 The device mainly comprises an inoculant supply unit 5, a sorting unit 1, a mixing unit 6, and a wetting unit. The inoculant supply unit 5 stores solid inoculant granules and outputs them quantitatively. It is fixedly installed on the rear body 7 of the straw processing equipment, with its outlet 9 facing downwards. The sorting unit 1 is located in the straw spraying path of the straw processing equipment, intercepting large-diameter straw particles and guiding them into the mixing unit 6, while allowing small-diameter materials to be discharged directly. The mixing unit 6 is located directly below the outlet 9 of the inoculant supply unit 5 and is connected to the outlet side of the sorting unit 1. It receives the inoculant and large-diameter straw particles and performs forced mixing. The wetting unit is installed at the rear of the mixing unit 6 and sprays moisture into the material inside the mixing unit 6. Through the synergistic effect of these four units, the device can accurately apply the inoculant to the target large-diameter straw, and under forced mixing and moderate wetting conditions, significantly improve the activation efficiency and composting effect of the inoculant.

[0029] Specifically, the microbial agent supply unit 5 adopts an external grooved wheel-type discharging box structure to achieve quantitative output of solid microbial agent granules. An external grooved wheel fertilizer distributor is installed at the fertilizer outlet of this discharging box. The size of the external grooved wheel matches the fertilizer outlet, and under normal conditions, the outer surface of the external grooved wheel prevents the microbial agent from falling. When the external grooved wheel rotates under the drive of a motor, the microbial agent enters the fertilizer outlet through the groove of the external grooved wheel and falls. By controlling the rotation speed of the external grooved wheel, the output amount of microbial agent per unit time can be precisely adjusted. External grooved wheel-type quantitative fertilizer discharging technology is a mature existing technology in the field of agricultural machinery; its specific structure and control method will not be elaborated here. The design of this microbial agent supply unit 5 ensures that the microbial agent can be accurately supplied according to agronomic requirements, avoiding resource waste caused by indiscriminate application.

[0030] The sorting unit 1 mainly includes an inclined shielding net located directly in front of the straw spray outlet 2 of the straw processing equipment, intercepting the straw in its spray path. The shielding net has multiple sieve holes of specific diameters for particle size separation. Specifically, when the crushed straw material is sprayed backward at high speed, large-diameter straw particles, being larger than the sieve holes, are intercepted by the shielding net and slide down along the inclined direction of the net under gravity; fine dust, debris, and some small straw particles pass through the sieve holes and are discharged directly into the field. The lower end of the shielding net connects to one side wall of the mixing unit 6, allowing the intercepted large-diameter straw particles to fall smoothly into the mixing unit 6. Through the screening action of the sorting unit 1, "straw separation" is achieved, enabling the microbial agent to concentrate its action on large-diameter straw, thereby improving the precision of the microbial agent's action.

[0031] The mixing unit 6 includes a mixer and a mixing shaft 10 disposed inside the mixer. The mixer is located directly below the outlet 9 of the inoculant supply unit 5 and has a bottom wall and multiple side walls. The side closest to the straw processing equipment is open for discharging the mixed material; the side away from the straw processing equipment is connected to the lower end of the shielding net of the sorting unit 1 to receive the large-diameter straw particles that are guided into the mixer. The solid inoculant particles output from the inoculant supply unit 5 fall directly into the mixer and merge with the large-diameter straw particles. The mixing shaft 10 is driven by a motor 11 and is rotatably disposed inside the mixer. Its surface is equipped with paddles or spiral blades. When the mixing shaft 10 rotates, it mechanically forces the material inside the mixer to mix, ensuring that the inoculant particles and large-diameter straw particles come into full contact and are evenly mixed. The mixing shaft 10 rotates towards the side wall of the mixer that receives large-diameter straw particles, thereby extending the residence time of the material within the mixer and ensuring thorough mixing. After mixing, the material is discharged into the field from the open port on the side of the mixer closest to the straw processing equipment, propelled by the mixing shaft 10. This forced mixing mechanism overcomes the shortcomings of existing technologies that rely solely on gravity for natural distribution, significantly increasing the contact area between the inoculant and the straw.

[0032] The wetting unit includes a water spraying system suspended at the rear of the mixer. The system is equipped with small-aperture nozzles 8 that penetrate the rear side wall of the mixer, extend into the mixer's interior, and are positioned towards the material area inside. The system is connected to a water tank 3 located on the straw processing equipment via pipe 4. During operation, the system sprays a small amount of water into the mixer according to a preset flow rate, slightly moistening both the microbial agent particles and the larger-diameter straw particles. It is important to note that the amount of water sprayed by this wetting unit is precisely controlled, ensuring that the mixed material remains in a slightly moist granular state. This moisture is used solely to activate the microbial activity of the solid microbial agent particles without causing material adhesion or reduced flowability. This design effectively shortens the activation time of the dried microbial agent in the field, allowing it to rapidly enter the degradation phase after application to the soil.

[0033] When the entire device is in operation, the sorting unit 1 first sorts the crushed straw by particle size, intercepting large-diameter straw and guiding it into the mixing unit 6. Simultaneously, the inoculant supply unit 5 quantitatively outputs solid inoculant granules into the mixing unit 6. The wetting unit simultaneously sprays a small amount of moisture into the mixing unit 6. Subsequently, the mixing shaft 10, driven by the motor 11, rotates, forcibly mixing the inoculant, large-diameter straw, and small amount of moisture within the mixer, ensuring thorough mixing. Finally, the uniformly mixed material is discharged from the open port of the mixer into the field. Throughout the process, the quantitative supply of inoculant, the sorting of large-diameter straw, the forced mixing, and the appropriate wetting work synergistically to achieve precise combination of the inoculant and the target straw, improving the utilization rate of the inoculant and optimizing the composting effect.

[0034] The specific implementation forms of each component unit described in the above-described embodiments, such as the outer groove wheel-type inoculant discharge box, the shielding net, the mixing shaft, and the water spraying system, can be adjusted in terms of specific dimensions, materials, and driving methods according to actual operational needs, and will not be elaborated further here. Through the above structural design, the present invention achieves precise application and efficient mixing of solid inoculant granules based on existing straw treatment equipment, achieving technical effects superior to existing technologies.

[0035] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention, and do not imply or require that the device or element referred to must have a specific orientation or construction method, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish the objects of description and should not be construed as limiting importance or order, and the features defined by such terms may explicitly or implicitly include one or more of those features. Unless otherwise stated, "a plurality of" in the description of this invention refers to two or more.

[0036] The terms "installation," "connection," and "joining" should be interpreted broadly, unless otherwise explicitly defined, to include, but are not limited to, fixed connections, detachable connections, or integrally formed connections; mechanical or electrical connections; direct connections or indirect connections via an intermediate medium; and internal communication between two components. Those skilled in the art can understand their meaning based on the specific technical solution. The fixed connections involved in this invention, unless otherwise stated, include both detachable fixed connections (such as bolt and screw connections) and non-detachable fixed connections (such as riveting and welding), and may also include integral structures achieved through an integral forming process (such as casting) (except where integral forming is clearly not feasible).

[0037] Unless otherwise stated, the terms used in any of the technical solutions disclosed in this invention to indicate positional relationships or shapes cover states or shapes that are similar to, close to, or adjacent to them.

[0038] Any component provided by this invention can be assembled from multiple individual components or can be a single component manufactured using a one-piece molding process.

[0039] It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings of this specification are only used to complement the content disclosed in the specification, so as to enable those skilled in the art to understand and read them, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0040] In the embodiments of this application, the same reference numerals are used to denote the same component or part.

[0041] Any adaptive changes made according to actual needs are within the scope of protection of this invention.

[0042] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for spreading solid microbial agent granules for straw decomposition, characterized in that, include: The microbial agent supply unit (5) is used to store and quantitatively output solid microbial agent granules; The sorting unit (1) is set on the straw spraying path of the straw processing equipment to intercept and guide large-diameter straw particles while allowing small-diameter materials to pass through. The mixing unit (6) is located below the outlet (9) of the microbial agent supply unit (5) and is connected to the outlet side of the sorting unit (1). It is used to receive the solid microbial agent particles output by the microbial agent supply unit (5) and the large-diameter straw particles guided by the sorting unit (1), and to forcibly mix the two. A wetting unit is used to spray water onto the material in the mixing unit (6).

2. The straw composting solid microbial agent granule spreading device according to claim 1, characterized in that, The sorting unit (1) includes a shielding net, which is inclinedly arranged on the straw spraying path and its lower end is connected to the mixing unit (6).

3. The straw composting solid microbial agent granule spreading device according to claim 2, characterized in that, The screen is provided with multiple sieve holes for separating fine dust and straw particles.

4. The straw composting solid microbial agent granule spreading device according to claim 1, characterized in that, The mixing unit (6) includes a mixer and a mixing shaft (10), the mixing shaft (10) being rotatably disposed inside the mixer for forcibly stirring the material inside by rotation.

5. The straw composting solid microbial agent granule spreading device according to claim 4, characterized in that, The mixer has a bottom wall and multiple side walls, with the side closest to the straw processing equipment being open for discharging the mixed material; the side wall of the mixer away from the straw processing equipment is connected to the sorting unit (1) for receiving guided large-diameter straw particles.

6. The straw composting solid microbial agent granule spreading device according to claim 5, characterized in that, The wetting unit includes a water spraying system, the nozzles of which are located at the rear of the mixer and spray water toward the interior of the mixer.

7. The straw composting solid microbial agent granule spreading device according to claim 4, characterized in that, The mixing shaft (10) is driven by a motor (11), and its rotation direction is set toward the side wall of the mixing unit (6) that receives large-diameter straw particles, so as to prolong the material mixing time.

8. The straw composting solid microbial agent granule spreading device according to claim 1, characterized in that, The microbial agent supply unit (5) includes an outer groove wheel type microbial discharge box. An outer groove wheel fertilizer distributor is provided at the fertilizer outlet of the outer groove wheel type microbial discharge box. The quantitative output of solid microbial agent particles is achieved by controlling the rotation speed of the outer groove wheel.

9. The straw composting solid microbial agent granule spreading device according to claim 1, characterized in that, The mixing unit (6), sorting unit (1) and wetting unit are all installed at the tail end of the straw treatment equipment and correspond to the position of the straw spray outlet 2 of the straw treatment equipment.

10. The straw composting solid microbial agent granule spreading device according to any one of claims 1-9, characterized in that, The amount of water sprayed by the wetting unit is set to keep the mixed material in a moist granular form, and is only used to activate the microbial activity of the solid bacterial agent particles.

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