Lawn seeding device based on harmless industrial slag and seeding method thereof

Abstract

The invention relates to the technical field of sowing in desert areas, in particular to a lawn sowing device based on harmless industrial slag and a sowing method thereof. The lawn sowing device comprises a vehicle body assembly, a fertilizer storage barrel, a seed storage barrel and a forming mechanism; a movable pipe is arranged in the forming mechanism, a hemispherical upper cover is fixedly mounted at the bottom of the movable pipe, a through hole formed in the center of the hemispherical upper cover is communicated with the movable pipe, an openable hemispherical bottom cover is mounted at the bottom of the forming mechanism, and the hemispherical bottom cover and the hemispherical upper cover form a pill forming cavity in a closed state; a fixing plate is fixedly connected to the interior of the forming mechanism, a lifting assembly is arranged on one face of the fixing plate, and the height of the movable pipe and the height of the hemispherical upper cover are adjusted; and a rotary driving assembly is arranged on the other surface of the fixed plate and is used for carrying out rotary adjustment on the movable pipe and the hemispherical upper cover.

Description

Technical Field

[0001] This application relates to the field of seeding technology in desert areas, specifically to a lawn seeding device and method based on harmless industrial slag. Background Technology

[0002] The extreme aridity, poor soil, and severe wind erosion in desert regions, along with the problems of traditional sowing methods such as seed exposure and easy loss, low germination rate, and poor water and fertilizer retention, severely restrict the efficiency and success rate of desert turf establishment.

[0003] Industrial slags such as coal gasification slag and steel slag generated during industrial production have potential value as soil conditioners and nutrient carriers due to their certain mineral components and controllable particle size. However, most industrial slags are currently only simply landfilled or extensively utilized, which not only occupies land resources but also easily causes secondary pollution. The harmless and resource-based utilization of industrial slags has become an important direction for the coordinated development of industrial solid waste treatment and ecological restoration.

[0004] For example, Chinese patent application number 202210749054.2, entitled "Automated Seeding System for Desert Areas," includes a seeding device. The seeding device includes a volute-shaped soil-shoveling and fertilizer-mixing device that can be raised and lowered. The volute-shaped soil-shoveling and fertilizer-mixing device includes a vortex-shaped soil-shoveling blade that is curved in a vortex shape. A left side plate and a right side plate are integrally provided on both sides of the vortex soil-shoveling blade. The end of the vortex soil-shoveling blade away from the center of the vortex is a sharp soil-shoveling end. The driving unit can drive the entire volute-shaped soil-shoveling and fertilizer-mixing device to rotate along the vortex center line of the vortex soil-shoveling blade. The system can automatically complete soil shoveling, soil breaking, fertilizer mixing, seed placement, watering, and soil filling in one go.

[0005] While the aforementioned existing technologies have made some progress, they still have the following technical shortcomings: First, the separation of seeds from the nutrient substrate during sowing makes it impossible to achieve precise seed encapsulation and simultaneous nutrient supply, making it difficult for seeds to germinate in arid and nutrient-deficient desert environments. Second, the pellet forming structure is simple, mostly using fixed compression strength, which cannot be adapted to the differentiated pellet strength according to the physiological characteristics of different seeds. If the compression strength is too high, the seeds are not easy to break out; if the compression strength is too low, the pellets are prone to loosening. Third, there is a lack of adaptability design for industrial slag materials. Traditional devices cannot achieve uniform mixing and stable forming of multi-component raw materials such as coal gasification slag, organic biomass, and microbial bacteria, making it difficult to effectively combine the harmless utilization of industrial slag materials with turf sowing.

[0006] In view of the above, in order to overcome the above technical problems, the present invention designs a lawn sowing device and sowing method based on harmless industrial slag, thus solving the above technical problems. Summary of the Invention

[0007] A lawn seeding device and method based on harmless industrial slag, comprising a vehicle body assembly, a fertilizer storage bin, a seed storage bin, and a forming mechanism, wherein:

[0008] The fertilizer storage bin, seed storage bin, and molding mechanism are all mounted on the vehicle body assembly, with the fertilizer storage bin and seed storage bin located above the molding mechanism.

[0009] The forming mechanism has an internal movable tube, and a hemispherical upper cover is fixedly installed at the bottom of the movable tube. The through hole in the center of the hemispherical upper cover is connected to the movable tube. An openable hemispherical bottom cover is installed at the bottom of the forming mechanism. When the hemispherical bottom cover is closed, it and the hemispherical upper cover together form a pellet forming cavity.

[0010] The forming mechanism is internally fixed with a fixed plate. One side of the fixed plate is provided with a lifting component to adjust the height of the movable tube and the hemispherical cover. The other side of the fixed plate is provided with a rotation drive component to adjust the rotation of the movable tube and the hemispherical cover.

[0011] Preferably, the lifting assembly includes a sleeve and an electric push rod. The sleeve is installed at one end of the movable tube located inside the forming mechanism, and the upper and lower ends of the sleeve are connected to the movable tube through bearings. Connecting plates are welded and fixed on both sides of the sleeve. The fixed end of the electric push rod is fixed to the bottom surface of the fixed plate, and the movable end of the electric push rod is fixed to the connecting plate.

[0012] Preferably, the rotary drive assembly includes a second motor, the housing of the second motor is fixed to the top surface of the fixed plate, the end of the movable tube above the fixed plate is provided with an annular tooth, and the thickness of the annular tooth is greater than the maximum adjustment distance of the lifting assembly, the output shaft of the second motor is equipped with a drive gear, and a second transmission gear set is provided between the drive gear and the annular tooth.

[0013] Preferably, the vehicle body assembly includes an outer shell, a top seat, and a base. The fertilizer storage bucket and the seed storage bucket are both fixed to the top seat. The outer wall of the forming mechanism is fixed to the base. The upper end of the outer shell is fixedly connected to or detachably connected to the top seat. The bottom of the outer shell is welded to the base. A power supply assembly is provided on the front side of the upper surface of the base. Two sets of wheels are provided on the sides of the outer shell. A handle is installed at the rear end of the outer shell.

[0014] Preferably, a jetting mechanism is provided on the rear side of the upper surface of the base. The jetting mechanism includes a fan and an air bag fixedly installed with the base, and the air outlet of the fan is connected to the air inlet of the air bag. An air inlet pipe is provided on the rear side of the bottom of the hemispherical cover, and the air inlet pipe is connected to the air outlet of the air bag through a gas delivery pipe. A jetting channel is provided inside the air inlet pipe, and the gas ejected from the jetting channel enters the pellet forming cavity along the vertical tangential direction.

[0015] Preferably, the interior of the hemispherical cover is provided with a baffle plate, the cross-section of the baffle plate is arc-shaped, the two sides of the top of the baffle plate are fixedly provided with limiting slide plates, the interior of the lower end of the movable tube is provided with a limiting groove, and the limiting slide plate slides in cooperation with the limiting groove. A return spring is provided between the limiting slide plate and the limiting groove. A seed through hole is provided at the center of the baffle plate, and the diameter of the seed through hole is smaller than the diameter of the channel inside the movable tube.

[0016] Preferably, an adjustment mechanism is provided between the molding mechanism and the hemispherical base cover. A connecting block is integrally formed at the rear end of the hemispherical base cover. The adjustment mechanism includes a fixed seat that is fixedly connected to the molding mechanism. The shaft at the other end of the connecting block is rotatably engaged with the fixed seat. A first motor is provided at the upper end of the fixed seat. The first motor drives the shaft at the other end of the connecting block to rotate through a first transmission gear set.

[0017] Preferably, a feeding mechanism is provided above the movable tube, a third motor is installed at the top of the feeding mechanism, a rotating shaft is rotatably installed inside the feeding mechanism, and the output shaft of the third motor is connected to the rotating shaft. Spiral feeding blades are installed outside the rotating shaft. A feeding channel is provided at the bottom of the feeding mechanism, the lower end of the feeding channel extends into the interior of the movable tube, and the feeding channel slides with the movable tube.

[0018] Preferably, a fertilizer channel is provided on one side of the upper end of the feeding mechanism, and the fertilizer channel is connected to the discharge end of the fertilizer storage tank. A seed channel is provided on one side of the feeding channel, and the seed channel is connected to the discharge end of the seed storage tank. An adjusting valve is provided at the end of the seed channel near the seed storage tank.

[0019] A method for sowing lawns using a harmless industrial slag-based lawn sowing device, characterized by the following steps:

[0020] Step 1: Add the pre-treated raw material components to the fertilizer storage container according to the specified ratio. The raw material components include coal gasification slag or steel slag with a particle size of 0.2-0.6mm, organic biomass, microbial powder, and water-retaining agent powder, and are bound together with only a small amount of water. Add the lawn seeds to be sown to the seed storage container.

[0021] Start the feeding mechanism, the third motor drives the rotating shaft to rotate the spiral feeding blades, the fertilizer in the fertilizer storage tank is transported to the feeding channel through the fertilizer channel, the seeds in the seed storage tank fall into the feeding channel through the seed channel, and the seed feeding amount is adjusted by the regulating valve.

[0022] Step 2: Fertilizer and seeds fall along the movable tube. The fertilizer first contacts the baffle inside the hemispherical cover. The arc-shaped baffle, combined with gravity, disperses the fertilizer around the perimeter of the pellet forming cavity. At the same time, the arc-shaped structure at the bottom of the pellet forming cavity gathers the fertilizer accumulated at the edges towards the center. Then, the seeds fall into the center of the fertilizer through the seed hole in the center of the baffle. After the seeds have settled, the remaining fertilizer falls through the movable tube to wrap the top of the seeds, completing the initial filling of the seeds and industrial slag-based nutrient material.

[0023] Step 3: The electric push rod of the lifting component extends and retracts, causing the sleeve, movable tube and hemispherical cover to descend vertically. The hemispherical cover presses the fertilizer and seeds in the molding cavity, completing the initial pressing.

[0024] Step 4: The second motor of the rotary drive assembly starts, and the power is transmitted to the ring gear of the movable tube through the drive gear and the second transmission gear set, driving the movable tube, the hemispherical cover and the pellet in the forming cavity to rotate in a small circumferential angle. After the rotation is completed, the hemispherical cover is raised. The blower of the jet mechanism delivers compressed air to the air tank. The pulse airflow in the air tank is injected into the forming cavity along the jet channel in the vertical tangential direction, driving the pellet to rotate continuously in a single direction at a certain angle. The electric push rod drives the hemispherical cover to continuously rise and repeatedly press, continuously adjusting the pellet's posture during the rotation of the pellet, so that the multi-component raw materials such as coal gasification slag, steel slag, organic biomass, microorganisms, and water-retaining agent are fully mixed and stably formed.

[0025] Step 5: The first motor is turned on, causing the hemispherical bottom cover to rotate and open, releasing the closed state of the pellet forming cavity; the formed pellets fall to the desert surface by their own gravity, completing the precise sowing of a single pellet; the outer shell of the vehicle body component is pushed, and the device is moved on the desert plot through the wheels and handles. Repeat the above steps to complete the continuous sowing operation of a large area of ​​desert grassland.

[0026] The beneficial effects of this invention are as follows:

[0027] 1. This invention overcomes the limitations of traditional pellet forming equipment in terms of fixed pressing strength by coordinating the lifting component, the rotary drive component, and the jetting mechanism, along with the forming cavity composed of a hemispherical upper cover and a hemispherical bottom cover. It allows for precise adjustment of the forming cavity spacing based on the physiological characteristics of different turfgrass seeds through the extension and retraction of an electric push rod, adapting to the particle size of industrial slag raw materials. This achieves customized pellet pressing strength, avoiding both excessively hard pellets that hinder seed germination and excessively loose pellets that are prone to crumbling and have poor wind erosion resistance. Simultaneously, the rotary drive causes the pellets to rotate at a small angle, and tangential pulsed airflow assists in unidirectional pellet posture adjustment. Combined with the baffle component, this ensures the seeds are centrally encased, allowing for uniform compaction of multi-component raw materials such as coal gasification slag, organic biomass, and microorganisms, thereby improving seed retention and germination rates in desert environments.

[0028] 2. Using the vehicle body as the overall load-bearing foundation, fertilizer storage bins, seed storage bins, molding mechanism, and feeding mechanism are integrated and arranged. This not only effectively protects the internal components from desert winds and dust, but also ensures the stability of the device's operation. With the help of wheels, hand handles, and built-in power components, no external power is required, and it can be flexibly moved by hand, adapting to desert terrain and meeting the needs of large-scale row-by-row continuous sowing. Attached Figure Description

[0029] Figure 1 This is a perspective view of the present invention after the outer shell has been removed;

[0030] Figure 2 This is a complete 3D view;

[0031] Figure 3 A three-dimensional view of the interior of the molding mechanism after removing the front cover and top cover;

[0032] Figure 4 A perspective view of the interior of the molding mechanism after removing the front cover and top cover;

[0033] Figure 5 This is a cross-sectional view of the forming mechanism;

[0034] Figure 6 This is a cross-sectional view of the forming mechanism from another perspective;

[0035] Figure 7 for Figure 6 Enlarged view of a portion of region A in the middle;

[0036] Figure 8 A 3D view of the hemispherical base after it has been opened;

[0037] Figure 9 This is a diagram showing the internal structure of fertilizer storage bins, seed storage bins, and feeding mechanisms.

[0038] In the picture:

[0039] 1. Outer shell; 2. Top seat; 3. Fertilizer storage tank; 4. Seed storage tank; 5. Base; 6. Forming mechanism; 61. Movable tube; 611. Ring tooth; 612. Limiting groove; 613. Return spring; 62. Sleeve; 621. Connecting plate; 63. Fixing plate; 64. Electric push rod; 65. Hemispherical bottom cover; 651. Air inlet pipe; 652. Adjustment mechanism; 6521. Fixing seat; 6522. First motor; 6523. First transmission gear set; 653. Air jet channel; 654. Connecting block; 67. Second motor; 671. Drive gear; 672. Second transmission gear set; 68. Hemispherical cover; 69. Baffle; 691. Limiting slide plate; 692. Seed through hole; 7. Feeding mechanism; 71. Fertilizer channel; 72. Feeding channel; 73. Seed channel; 74. Regulating valve; 75. Third motor; 76. Rotating shaft; 77. Spiral feed blades; 8. Jet mechanism; 81. Blower; 82. Air tank; 83. Air supply pipe; 9. Power supply assembly. Detailed Implementation

[0040] The application principle of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] Example 1:

[0042] like Figure 1-9 As shown, a lawn seeding device based on harmless industrial slag includes a vehicle body assembly, a fertilizer storage tank 3, a seed storage tank 4, and a forming mechanism 6, wherein:

[0043] The vehicle body assembly serves as the overall load-bearing foundation, including an outer shell 1, a top seat 2, and a base 5. The upper end of the outer shell 1 is fixedly or detachably connected to the top seat 2, and the bottom is welded and fixed to the base 5. The fertilizer storage tank 3 and the seed storage tank 4 are both fixedly installed on the top seat 2, and both are located directly above the forming mechanism 6, with the discharge port facing vertically downwards, relying on gravity to achieve autonomous feeding of raw materials and seeds.

[0044] The outer wall of the molding mechanism 6 is fixedly connected to the base 5. A fixing plate 63 is horizontally fixed inside the molding mechanism 6, dividing the interior of the molding mechanism into upper and lower sections. A movable tube 61 is vertically provided inside the molding mechanism 6. The movable tube 61 passes through the fixing plate 63 and the bottom end is sealed and fixed to the hemispherical upper cover 68. The central through hole of the hemispherical upper cover 68 is connected to the internal channel of the movable tube 61. An openable and closable hemispherical bottom cover 65 is assembled at the bottom of the molding mechanism 6. In the closed state, the hemispherical bottom cover 65 and the hemispherical upper cover 68 are spliced ​​together to form a closed pellet molding cavity.

[0045] The power supply component 9 is arranged on the front side of the upper end of the base 5 to supply power to the electric components of the device. The jet mechanism 8 is fixed on the rear side. Two sets of walking wheels are provided on the side of the outer shell 1 and a handle is installed at the rear end to facilitate manual pushing and sowing.

[0046] The jet mechanism 8 includes a blower 81 and an air tank 82, both of which are fixed to the upper surface of the base 5. The air outlet of the blower 81 is connected to the air inlet of the air tank 82 to achieve stable pressure storage of compressed air. The bottom rear side of the hemispherical cover 65 is provided with an air inlet pipe 651. The air inlet pipe 651 is connected to the air outlet of the air tank 82 through a flexible air supply pipe 83. A jet channel 653 is opened inside the air inlet pipe 651, and the jet air enters the pellet forming cavity along the vertical tangential direction.

[0047] An adjustment mechanism 652 is provided between the molding mechanism 6 and the hemispherical base cover 65. The rear end of the hemispherical base cover 65 is integrally formed with a connecting block 654. The adjustment mechanism 652 includes a fixed seat 6521 fixedly connected to the molding mechanism 6. The end shaft of the connecting block 654 is rotatably engaged with the fixed seat 6521. A first motor 6522 is provided at the upper end of the fixed seat 6521. The first motor 6522 drives the shaft of the connecting block 654 to rotate through the first transmission gear set 6523, thereby realizing the automatic opening and closing of the hemispherical base cover 65.

[0048] A feeding mechanism 7 is located directly above the movable tube 61. A third motor 75 is installed at the top of the feeding mechanism 7, and a rotating shaft 76 is mounted inside. The output shaft of the third motor 75 is connected to the rotating shaft 76, and a spiral feeding blade 77 is fixed to the outside of the rotating shaft 76. A feeding channel 72 is located at the bottom of the feeding mechanism 7, and the lower end of the feeding channel 72 extends into the interior of the movable tube 61, with the two slidingly engaged to accommodate the lifting and lowering movement of the movable tube. A fertilizer channel 71 is located on one side of the upper end of the feeding mechanism 7, which is connected to the discharge end of the fertilizer storage tank 3. A seed channel 73 is located on one side of the feeding channel 72, which is connected to the discharge end of the seed storage tank 4. A regulating valve 74 is located at the end of the seed channel 73 near the seed storage tank 4 to control the amount of seeds fed.

[0049] The lifting assembly consists of a sleeve 62 and an electric push rod 64. The sleeve 62 is fitted onto one end of the movable tube 61 located inside the forming mechanism 6. Both the upper and lower ends of the sleeve 62 are connected to the movable tube 61 via bearings, ensuring that the movable tube can rotate freely at small angles without interference from the lifting structure. Fixed connecting plates 621 are welded to both sides of the sleeve 62. The fixed end of the electric push rod 64 is fixedly connected to the bottom surface of the fixed plate 63, and the movable end is fixedly connected to the connecting plate 621, forming a stable lifting transmission structure. Before operation, the extension and retraction stroke of the electric push rod 64 is preset according to the physiological characteristics of the seeds to be sown, and the distance between the hemispherical upper cover 68 and the hemispherical bottom cover 65 is adjusted to precisely control the pressing strength of the pellets. During operation, the extension and retraction of the electric push rod 64 drives the sleeve 62, the movable tube 61, and the hemispherical upper cover 68 to rise and fall vertically synchronously. It adapts to the particle size of industrial slag raw materials of 0.2-0.6mm throughout the process, realizing differentiated pressing strength adjustment, and the lifting action does not interfere with the subsequent rotation and posture adjustment.

[0050] The rotary drive assembly is powered by a second motor 67. The housing of the second motor 67 is fixedly connected to the top surface of the fixed plate 63. The end of the movable tube 61 located above the fixed plate 63 is provided with an annular tooth 611, and the thickness of the annular tooth 611 is greater than the maximum adjustment distance of the lifting assembly, ensuring that the transmission structure is always engaged during the entire lifting and lowering process of the hemispherical cover 68. The output shaft of the second motor 67 is equipped with a drive gear 671, and a second transmission gear set 672 is matched between the drive gear 671 and the annular tooth 611 to form a complete gear transmission link. After a single pressing is completed, the second motor 67 starts, and the power is transmitted to the annular tooth 611 through the drive gear 671 and the second transmission gear set 672, driving the movable tube 61, the hemispherical cover 68 and the pellet in the forming cavity to rotate circumferentially at a small angle of 15°-30°, which, together with the subsequent pressing, achieves all-round compaction of the pellet.

[0051] The jetting mechanism works in conjunction with the rotary drive assembly and the lifting assembly. The blower 81 continuously supplies compressed air to the air tank 82, which then outputs a pulsed airflow after stabilizing and storing energy. The airflow passes through the air delivery pipe 83 and the air inlet pipe 651, and is injected into the pellet forming cavity along the vertical tangential direction through the jetting channel 653. The airflow adheres to the outer wall of the pellet, preventing vertical impact from causing seed displacement and exposure. Each time the rotary drive assembly drives the pellet to rotate and the movable pipe 61 to rise, the pulsed airflow is ejected instantaneously, driving the pellet to rotate slightly in a single direction, further optimizing the pellet's posture and assisting in the uniform mixing of multiple components such as coal gasification slag, organic biomass, microorganisms, and water-retaining agents, thus solving the problem of large differences in component density and easy stratification.

[0052] The hemispherical cover 68 has an arc-shaped baffle 69 inside. Limiting slide plates 691 are fixed to both sides of the top of the baffle 69. A limiting groove 612 is opened inside the lower end of the movable tube 61. The limiting slide plates 691 and the limiting groove 612 slide together, and a return spring 613 is provided between them. A seed through-hole 692 is opened in the center of the baffle 69, and the diameter of the seed through-hole 692 is smaller than the diameter of the inner channel of the movable tube 61, achieving precise seed positioning. During the feeding stage, the third motor 75 of the feeding mechanism 7 drives the spiral feeding blades 77 to rotate, achieving quantitative and uniform conveying of raw materials. Half of the industrial slag-based raw material first falls through the movable tube 61, contacts the arc-shaped baffle 69, and disperses to the surrounding area of ​​the forming cavity. Then, it converges towards the center through the bottom arc structure to form a raw material base. The seed falls precisely into the center of the base through the seed through-hole 692, and the remaining raw material falls to complete the top wrapping. During the pressing stage, the upper hemispherical cover 68 is pressed down, and the material pushes the baffle 69 to slide up along the limiting groove 612. The return spring 613 compresses to avoid the space. After the pressing is completed and the movable tube 61 is raised, the return spring 613 rebounds and drives the baffle 69 to return to its original position, sealing the lower end of the movable tube 61 to prevent the material from flowing back and blocking it.

[0053] Example 2:

[0054] In conjunction with Example 1, the turf seeding method based on the harmless industrial slag seeding device includes the following steps:

[0055] Step 1: Put the pre-treated raw material components into fertilizer storage tank 3 according to the ratio. The raw material components include coal gasification slag or steel slag with a particle size of 0.2-0.6mm, organic biomass, microbial powder, and water-retaining agent powder, and are bound together with only a small amount of water; put the lawn seeds to be sown into seed storage tank 4.

[0056] Start the feeding mechanism 7, the third motor 75 drives the rotating shaft 76 to drive the spiral feeding blade 77 to rotate, the fertilizer in the fertilizer storage tank 3 is transported to the feeding channel 72 through the fertilizer channel 71, and the seeds in the seed storage tank 4 fall into the feeding channel 72 through the seed channel 73, and the seed feeding amount is adjusted by the regulating valve 74.

[0057] Step 2: Fertilizer and seeds fall along the movable tube 61. The fertilizer first contacts the baffle 69 inside the hemispherical cover 68. The arc-shaped baffle 69, combined with gravity, disperses the fertilizer around the perimeter of the pellet forming cavity. At the same time, the arc-shaped structure at the bottom of the pellet forming cavity gathers the fertilizer accumulated at the edges towards the center. Then, the seeds fall into the center of the fertilizer through the seed through-hole 692 in the center of the baffle 69. After the seeds have settled, the remaining fertilizer falls through the movable tube 61 to wrap around the top of the seeds, completing the initial filling of the seeds and industrial slag-based nutrient material.

[0058] Step 3: The electric push rod 64 of the lifting component extends and retracts, driving the sleeve 62, movable tube 61 and hemispherical cover 68 to descend vertically. The hemispherical cover 68 presses the fertilizer and seeds in the molding cavity, completing the initial pressing.

[0059] Step 4: The second motor 67 of the rotary drive assembly starts, and the power is transmitted to the ring gear 611 of the movable tube 61 through the drive gear 671 and the second transmission gear set 672, which drives the movable tube 61, the hemispherical cover 68 and the pellet in the forming cavity to rotate in a small circumferential angle. After the rotation is completed, the hemispherical cover 68 is raised. The blower 81 of the jet mechanism 8 delivers compressed air to the air tank 82. The pulse airflow in the air tank 82 is injected into the forming cavity along the jet channel 653 in the vertical tangential direction, driving the pellet to rotate continuously in a single direction at a certain angle. The electric push rod 64 drives the hemispherical cover 68 to rise continuously and press repeatedly, continuously adjusting the pellet's posture during the rotation of the pellet, so that the multi-component raw materials such as coal gasification slag, steel slag, organic biomass, microorganisms, and water-retaining agent are fully mixed and stably formed.

[0060] Step 5: The first motor 6522 is turned on, driving the hemispherical bottom cover 65 to rotate and open, releasing the closed state of the pellet forming cavity; the formed pellets fall to the desert surface by their own gravity, completing the precise sowing of a single pellet; the outer shell 1 of the vehicle body component is pushed, and the device is moved on the desert plot through the wheels and handles. Repeat the above steps to complete the continuous sowing operation of a large area of ​​desert grassland.

Claims

1. A lawn seeding device based on harmless industrial slag, characterized in that: Includes vehicle body components, fertilizer storage tank (3), seed storage tank (4), and molding mechanism (6), wherein: The fertilizer storage tank (3), the seed storage tank (4) and the molding mechanism (6) are all installed on the vehicle body assembly, and the fertilizer storage tank (3) and the seed storage tank (4) are respectively located above the molding mechanism (6); The forming mechanism (6) is provided with a movable tube (61) inside. A hemispherical upper cover (68) is fixedly installed at the bottom of the movable tube (61), and the through hole in the center of the hemispherical upper cover (68) is connected to the movable tube (61). An openable hemispherical bottom cover (65) is installed at the bottom of the forming mechanism (6). The closed state of the hemispherical bottom cover (65) and the hemispherical upper cover (68) constitutes a pellet forming cavity. The forming mechanism (6) is internally fixed with a fixing plate (63). One side of the fixing plate (63) is provided with a lifting component to adjust the height of the movable tube (61) and the hemispherical cover (68). The other side of the fixing plate (63) is provided with a rotation drive component to adjust the rotation of the movable tube (61) and the hemispherical cover (68).

2. The lawn seeding device based on harmless industrial slag according to claim 1, characterized in that: The lifting assembly includes a sleeve (62) and an electric push rod (64). The sleeve (62) is installed at one end of the movable tube (61) inside the forming mechanism (6), and the upper and lower ends of the sleeve (62) are connected to the movable tube (61) through bearings. Connecting plates (621) are welded and fixed on both sides of the sleeve (62). The fixed end of the electric push rod (64) is fixed to the bottom surface of the fixed plate (63), and the movable end of the electric push rod (64) is fixed to the connecting plate (621).

3. The lawn seeding device based on harmless industrial slag according to claim 1, characterized in that: The rotary drive assembly includes a second motor (67), the housing of the second motor (67) is fixed to the top surface of the fixed plate (63), the movable tube (61) is provided with an annular tooth (611) at one end above the fixed plate (63), and the thickness of the annular tooth (611) is greater than the maximum adjustment distance of the lifting assembly. The output shaft of the second motor (67) is equipped with a drive gear (671), and a second transmission gear set (672) is provided between the drive gear (671) and the annular tooth (611).

4. The lawn seeding device based on harmless industrial slag according to claim 1, characterized in that: The vehicle body assembly includes an outer shell (1), a top seat (2), and a base (5). The fertilizer storage tank (3) and the seed storage tank (4) are both fixed to the top seat (2). The outer wall of the molding mechanism (6) is fixed to the base (5). The upper end of the outer shell (1) is fixedly connected to the top seat (2) or detachably connected. The bottom of the outer shell (1) is welded to the base (5). A power supply assembly (9) is provided on the front side of the upper surface of the base (5). Two sets of walking wheels are provided on the sides of the outer shell (1). A handle is installed at the rear end of the outer shell (1).

5. A lawn seeding device based on harmless industrial slag according to claim 4, characterized in that: The upper surface of the base (5) is provided with a jetting mechanism (8). The jetting mechanism (8) includes a fan (81) and an air bag (82) fixedly installed on the base (5). The air outlet of the fan (81) is connected to the air inlet of the air bag (82). The bottom of the hemispherical cover (65) is provided with an air inlet pipe (651). The air inlet pipe (651) is connected to the air outlet of the air bag (82) through a gas delivery pipe (83). The air inlet pipe (651) is provided with a jetting channel (653). The gas ejected from the jetting channel (653) enters the pellet forming cavity along the vertical tangential direction.

6. The lawn seeding device based on harmless industrial slag according to claim 1, characterized in that: The hemispherical cover (68) is provided with a baffle (69) inside. The cross-section of the baffle (69) is arc-shaped. Limiting slide plates (691) are fixedly provided on both sides of the top of the baffle (69). The lower end of the movable tube (61) is provided with a limiting groove (612). The limiting slide plate (691) and the limiting groove (612) are slidably engaged. A reset spring (613) is provided between the limiting slide plate (691) and the limiting groove (612). A seed through hole (692) is provided at the center of the baffle (69). The diameter of the seed through hole (692) is smaller than the diameter of the channel inside the movable tube (61).

7. A lawn seeding device based on harmless industrial slag according to claim 1, characterized in that: An adjustment mechanism (652) is provided between the molding mechanism (6) and the hemispherical base (65). A connecting block (654) is integrally formed at the rear end of the hemispherical base (65). The adjustment mechanism (652) includes a fixed seat (6521) fixedly connected to the molding mechanism (6), and the shaft at the other end of the connecting block (654) is rotatably engaged with the fixed seat (6521). A first motor (6522) is provided at the upper end of the fixed seat (6521), and the first motor (6522) drives the shaft at the other end of the connecting block (654) to rotate through the first transmission gear set (6523).

8. A lawn seeding device based on harmless industrial slag according to claim 1, characterized in that: A feeding mechanism (7) is provided above the movable tube (61). A third motor (75) is installed at the top of the feeding mechanism (7). A rotating shaft (76) is rotatably installed inside the feeding mechanism (7), and the output shaft of the third motor (75) is connected to the rotating shaft (76). A spiral feeding blade (77) is installed outside the rotating shaft (76). A feeding channel (72) is provided at the bottom of the feeding mechanism (7). The lower end of the feeding channel (72) extends into the interior of the movable tube (61), and the feeding channel (72) slides with the movable tube (61).

9. A lawn seeding device based on harmless industrial slag according to claim 8, characterized in that: The feeding mechanism (7) has a fertilizer channel (71) on one side of its upper end, and the fertilizer channel (71) is connected to the discharge end of the fertilizer storage tank (3). The feeding channel (72) has a seed channel (73) on one side, and the seed channel (73) is connected to the discharge end of the seed storage tank (4). The seed channel (73) has a regulating valve (74) at one end near the seed storage tank (4).

10. A sowing method based on the lawn sowing device using harmless industrial slag as described in any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Put the pretreated raw material components into the fertilizer storage tank (3) according to the ratio. The raw material components include coal gasification slag or steel slag with a particle size of 0.2-0.6mm, organic biomass, microbial powder, and water-retaining agent powder, and are bound together with only a small amount of water; put the lawn seeds to be sown into the seed storage tank (4). Start the feeding mechanism (7), the third motor (75) drives the rotating shaft (76) to rotate the spiral feeding blade (77), the fertilizer in the fertilizer storage tank (3) is transported to the feeding channel (72) through the fertilizer channel (71), the seeds in the seed storage tank (4) fall into the feeding channel (72) through the seed channel (73), and the seed feeding amount is adjusted by the regulating valve (74); Step 2: Fertilizer and seeds fall along the movable tube (61). The fertilizer first contacts the baffle (69) inside the hemispherical cover (68). The arc-shaped baffle (69), combined with gravity, disperses the fertilizer around the pellet forming cavity. At the same time, the arc structure at the bottom of the pellet forming cavity gathers the fertilizer accumulated at the edge towards the center. Then, the seeds fall into the center of the fertilizer through the seed hole (692) in the center of the baffle (69). After the seeds settle, the remaining fertilizer falls through the active tube (61) to wrap the top of the seeds, completing the initial filling of the seeds and industrial slag-based nutrients. Step 3: The electric push rod (64) of the lifting component extends and retracts, driving the sleeve (62), movable tube (61) and hemispherical cover (68) to descend vertically. The hemispherical cover (68) presses the fertilizer and seeds in the molding cavity to complete the initial pressing. Step 4: The second motor (67) of the rotary drive assembly is started, and the power is transmitted to the ring gear (611) of the movable tube (61) through the drive gear (671) and the second transmission gear set (672), which drives the movable tube (61), the hemispherical cover (68) and the pellet in the forming cavity to rotate in a small circumferential angle. After the rotation is completed, the hemispherical cover (68) is raised. The blower (81) of the jet mechanism (8) delivers compressed air to the air bag (82). The pulse airflow in the air bag (82) is sprayed into the forming cavity along the jet channel (653) in the vertical tangential direction, driving the pellet to rotate continuously in a single direction at a certain angle. The electric push rod (64) drives the hemispherical cover (68) to rise continuously and press repeatedly. During the rotation of the pellet, the pellet posture is continuously adjusted so that the multi-component raw materials such as coal gasification slag, steel slag, organic biomass, microorganisms, and water-retaining agent are fully mixed and stably formed. Step 5: The first motor (6522) is turned on, which drives the hemispherical bottom cover (65) to rotate and open, releasing the closed state of the pellet forming cavity; the formed pellets fall to the desert surface by their own gravity, completing the precise sowing of a single pellet; the outer shell (1) of the vehicle body component is pushed, and the device is moved on the desert plot through the walking wheels and handles. Repeat the above steps to complete the continuous sowing operation of a large area of ​​desert grassland.

Images