A high-efficiency mixing device for soil remediation agent

Abstract

The present application belongs to the field of ecological restoration technology, and particularly relates to a high-efficiency mixing device for soil restoration agent, which comprises a vehicle body, a rotary tillage device located at the front end of the vehicle body in the direction of travel, the rotary tillage device being connected with the vehicle body and used for soil crushing, a soil shoveling device, the feeding end of which is communicated with the discharging end of the rotary tillage device, the soil shoveling device being connected with the vehicle body, a conveying belt assembly, the feeding end of which is communicated with the discharging end of the soil shoveling device, the conveying belt assembly being used for soil conveying and having one end connected with the soil shoveling device, a soil restoration agent mixing device, the feeding end of which is communicated with the discharging end of the conveying belt assembly, the other end of the conveying belt assembly being connected with the soil restoration agent mixing device, the soil restoration agent mixing device being used for uniformly mixing soil and restoration agent, and a spreading device, the feeding end of which is communicated with the discharging end of the soil restoration agent mixing device, the spreading device being connected with the vehicle body and having a discharging end facing the ground surface and being used for spreading the soil mixed with the restoration agent on the ground surface.

Description

Technical Field

[0001] This invention belongs to the field of ecological restoration technology, and in particular relates to a high-efficiency mixing device for soil remediation agents. Background Technology

[0002] Ecological restoration is a comprehensive method for remediating polluted environments, guided by ecological principles, based on bioremediation, and combined with various physical, chemical, and engineering techniques. Through optimized combination, it aims to achieve the best results with the lowest cost. Successful implementation of ecological restoration requires the participation of multiple disciplines, including ecology, physics, chemistry, botany, microbiology, molecular biology, culinary science, and environmental engineering.

[0003] In the process of soil remediation, soil remediation materials can be mixed into the soil to remediate it. However, most existing soil remediation devices are difficult to quickly and efficiently remediate large areas of soil. The mixing of soil and soil remediation materials takes too long, resulting in low remediation efficiency and high energy consumption.

[0004] Therefore, there is an urgent need for a high-efficiency mixing device for soil remediation agents. Summary of the Invention

[0005] The purpose of this invention is to provide a highly efficient mixing device for soil remediation agents to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following solution:

[0007] A high-efficiency mixing device for soil remediation agents, comprising:

[0008] Vehicle body;

[0009] A rotary tiller is located at the front end of the vehicle body in the direction of travel. The rotary tiller is connected to the vehicle body and is used for soil breaking.

[0010] The soil-shoveling device has its feed end connected to the discharge end of the rotary tiller, and the soil-shoveling device is connected to the vehicle body.

[0011] The conveyor belt assembly has its inlet end connected to the outlet end of the shovel device. The conveyor belt assembly is used for soil transportation, and one end of the conveyor belt assembly is connected to the shovel device.

[0012] A soil remediation agent mixing device, wherein the feed end is connected to the discharge end of the conveyor belt assembly, and the other end of the conveyor belt assembly is connected to the soil remediation agent mixing device, and the soil remediation agent mixing device is used to mix the soil and the remediation agent evenly.

[0013] The spreading device has its inlet end connected to the outlet end of the soil remediation agent mixing device. The spreading device is connected to the vehicle body, and its outlet end faces the ground surface. It is used to spread the soil mixed with the remediation agent on the ground surface.

[0014] Optionally, the soil remediation agent mixing device includes a stone separation component and a remediation agent mixing component. The inlet end of the stone separation component is connected to the outlet end of the conveyor belt component, the stone outlet end of the stone separation component is connected to the ground surface, and the soil outlet end of the stone separation component is connected to the inlet end of the remediation agent mixing component.

[0015] Optionally, the stone separation component includes:

[0016] The feed cylinder is fixed to the bottom of the vehicle body via a support arm. The feed cylinder has a soil and rock inlet and a rock outlet on its two sides, respectively. The soil and rock inlet is connected to the discharge end of the conveyor belt assembly.

[0017] The bottom end of the rotating shaft is rotatably connected to the bottom inner wall of the feed cylinder, and the top end of the rotating shaft is connected to the repair agent mixing assembly. An auger is sleeved on the outer side of the bottom of the rotating shaft, and the conveying direction of the auger is upward. The auger is axially connected to the rotating shaft.

[0018] A lifting cylinder is vertically slidably connected to the inside of the feeding cylinder. The feeding cylinder and the lifting cylinder are coaxially arranged. The lifting cylinder is driven by the rotating shaft, which drives the lifting cylinder to repeatedly lift and lower.

[0019] A screen is fitted on the outside of the lifting cylinder. The screen is fixedly connected to the lifting cylinder. The screen is inclined. The high end of the screen is connected to the soil and rock inlet, and the low end of the screen is connected to the stone outlet.

[0020] The vibrating part is connected to the screen drive;

[0021] The feed end of the auger is connected to the bottom chamber of the feed cylinder, and the feed end of the auger is located below the screen.

[0022] Optionally, the vibrating part includes two vibrators, which are respectively disposed at the top and bottom of the screen. The vibrators are in contact with the screen, and the two vibrators alternately contact the top or bottom surface of the screen. One of the vibrators is fixed below the soil and rock inlet, and the other vibrator is fixed below the stone outlet.

[0023] Optionally, the repair agent mixture includes:

[0024] The chassis has a ring-shaped structure and is coaxially arranged with the lifting cylinder and the rotating shaft. The chassis and the lifting cylinder are vertically slidingly fitted together. A stirring inner barrel is coaxially sleeved on the outer side of the chassis and is fixedly connected to the chassis.

[0025] An outer mixing tank is coaxially sleeved on the outside of an inner mixing tank. The top of the inner mixing tank is fixedly connected to the top inner wall of the outer mixing tank. The outer mixing tank is fixed to the vehicle body. A gap is provided between the inner wall of the outer mixing tank and the outer wall of the inner mixing tank. A partition ring is provided in the middle of the gap. The partition ring is coaxially sleeved on the outside of the inner mixing tank. The partition ring divides the gap into a repair agent chamber located above and a squeezing chamber located below. The liquid outlet of the repair agent chamber and the liquid inlet of the squeezing chamber are connected through several one-way valves. The liquid outlet of the squeezing chamber is connected to the inside of the inner mixing tank through several one-way valves.

[0026] Several of the one-way valves are circumferentially and equally spaced within the spacer ring;

[0027] Several of the one-way valves are circumferentially and equally spaced and embedded in the side wall of the inner mixing tank;

[0028] A piston ring is fitted on the outside of the inner mixing tank. The piston ring is vertically slidably disposed in the extrusion chamber. The outer wall of the piston ring contacts and slides with the inner wall of the outer mixing tank. The piston ring is connected to the lifting cylinder in a transmission manner.

[0029] A stirring assembly is disposed inside the inner stirring tank, and the stirring assembly is connected to the rotating shaft via a transmission connection.

[0030] The discharge end at the top of the mixing inner tank is connected to the feed end of the spreading device;

[0031] The top end of the rotating shaft is connected to the output shaft of motor three, and the fixed end of motor three is fixed to the outer top of the mixing tank.

[0032] Optionally, the stirring assembly includes:

[0033] A rotating cylinder is sleeved on the outside of the rotating shaft. The bottom end of the rotating cylinder is vertically limited by a limiting ring. The limiting ring is fixed coaxially with the rotating shaft, and the rotating cylinder is rotatably arranged with the limiting ring.

[0034] Several stirring blade groups are coaxially fixed to the outside of the rotating cylinder, and the several stirring blade groups are equally spaced along the height direction of the rotating cylinder;

[0035] The stirring blade assembly includes several stirring blades arranged at equal intervals in the circumferential direction, and the stirring blades are fixedly connected to the outer wall of the rotating cylinder.

[0036] A toothed ring is sleeved on the outside of the rotating shaft. The toothed ring is fixedly connected to the inner wall of the top of the stirring outer barrel and is drivenly connected to the rotating cylinder.

[0037] The gear ring is engaged with a plurality of gears, the gears are rotatably disposed with the rotating shaft, the plurality of gears are circumferentially spaced around the rotating shaft, and the gears are engaged with the top of the rotating cylinder;

[0038] A protective sleeve is coaxially fitted on the outer side of the gear ring. The protective sleeve is fixedly connected to the inner wall of the top of the mixing tank and covers the outer side of several gears.

[0039] Optionally, the rotating shaft has a V-shaped continuous bending slide that is connected end to end in the middle. There are two symmetrically arranged slide rods that slide in the V-shaped continuous bending slide. The slide rods are fixed to the inner wall of the lifting cylinder. When the slide rods slide along the V-shaped continuous bending slide, they drive the lifting cylinder to move back and forth in the vertical direction.

[0040] The piston ring is connected to the outer wall of the lifting cylinder via several L-links. One end of each L-link is fixed to the outer wall of the lifting cylinder, and the other end is fixed to the bottom of the piston ring. The L-links are arranged at equal intervals around the circumference.

[0041] Optionally, the rotary tillage device includes:

[0042] The rotary tiller has a sliding rod connected to each end of the rotary tiller. The sliding rod slides vertically on the inside of the column. The column is fixed to the bottom of the vehicle body. A spring is provided between the inner wall of the column and the top of the sliding rod. One end of the spring is fixed to the inner wall of the column, and the other end of the spring is fixed to the top of the sliding rod.

[0043] Motor 1, the output shaft of motor 1 is axially connected to one end of the rotary tiller blade, and the fixed end of motor 1 is fixedly connected to any of the slide rods 1.

[0044] Optionally, the soil-moving device includes:

[0045] A sloping shovel, with sliding rods two fixedly connected to both ends of the shovel. The sliding rods two slide vertically on the inner side of the column two. The column two is fixedly connected to the bottom of the vehicle body. A spring two is provided between the inner wall of the column two and the top of the sliding rod two. One end of the spring two is fixedly connected to the inner wall of the column two, and the other end of the spring two is fixedly connected to the top of the sliding rod two.

[0046] One end of the connecting rod is fixed to the bottom of the slide bar two. One of the rotating shafts of the conveyor belt assembly is rotatably disposed between the two connecting rods. One of the connecting rods is fixed to the fixed end of the motor two. The output shaft of the motor two is shaft-connected to the rotating shaft of the conveyor belt assembly.

[0047] Optionally, the spreading device includes:

[0048] The discharge channel has a bottom inlet end connected to the top outlet end of the inner mixing tank, and the discharge channel is fixed to the outer mixing tank.

[0049] The ramp has its high end connected to the discharge end of the discharge channel, and its low end fixed to the vehicle body.

[0050] Compared with the prior art, the present invention has the following advantages and technical effects:

[0051] In use, the vehicle moves forward, and the rotary tiller breaks up the soil and transports it to the shovel. The shovel picks up the broken soil pieces, which then move automatically to the conveyor belt assembly as the vehicle moves forward. The conveyor belt then transports the broken soil pieces to the soil remediation agent mixing device, where the remediation agent and soil are mixed. After mixing, the soil containing the remediation agent is spread onto the surface by the spreading device, completing the soil remediation in that area. Operators can automatically mix the remediation agent in situ by driving the vehicle, achieving soil remediation. Compared to the traditional method of manually excavating, mixing, and laying the soil, this device is easy to operate and has high remediation efficiency. Attached Figure Description

[0052] 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 described 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.

[0053] Figure 1 This is a schematic diagram of the structure of the present invention;

[0054] Figure 2 This is a schematic diagram of the rotary tillage device of the present invention;

[0055] Figure 3 This is a cross-sectional view of the rotary tillage device of the present invention;

[0056] Figure 4 This is a schematic diagram of the soil-shoveling device of the present invention;

[0057] Figure 5 This is a cross-sectional view of the soil-moving device of the present invention;

[0058] Figure 6 This is a cross-sectional view of the soil remediation agent mixing device of the present invention;

[0059] Figure 7For the present invention Figure 6 Enlarged view of a portion of point A in the middle;

[0060] Figure 8 For the present invention Figure 6 Enlarged view of a section at point B in the middle;

[0061] Figure 9 For the present invention Figure 6 Enlarged view of a section at point C;

[0062] Figure 10 For the present invention Figure 6 Enlarged view of a section at point D;

[0063] The components include: 1. Vehicle body; 2. Rotary tillage device; 3. Soil shoveling device; 4. Conveyor belt assembly; 5. Soil remediation agent mixing device; 6. Spreading device; 201. Column 1; 202. Spring 1; 203. Sliding rod 1; 204. Rotary tillage blade; 205. Motor 1; 301. Column 2; 302. Spring 2; 303. Sliding rod 2; 304. Sloping shovel; 305. Connecting rod; 306. Motor 2; 501. Feed cylinder; 502. Stone outlet; 503. Soil and stone inlet; 504. Rotating shaft; 505. Lifting cylinder; 506. Vibrator; 507. 508. Screen; 509. Support arm; 5000. L-shaped connecting rod; 510. Chassis; 511. Outer mixing tank; 512. Inner mixing tank; 513. Sheath; 514. Motor 3; 515. Gear ring; 516. Gear; 517. Rotating cylinder; 518. Mixing blade; 519. Spacer ring; 520. Piston ring; 521. One-way valve 1; 522. One-way valve 2; 523. Screwdriver; 524. V-shaped continuous bending slide; 525. Slide rod; 526. Repair agent chamber; 527. Extrusion chamber; 528. Limiting ring; 601. Discharge channel; 602. Inclined ramp. Detailed Implementation

[0064] 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. 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.

[0065] 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.

[0066] Reference Figures 1 to 10 This invention discloses a high-efficiency mixing device for soil remediation agents, comprising:

[0067] Vehicle body 1;

[0068] Rotary tillage device 2 is located at the front end of vehicle body 1 in the direction of travel. Rotary tillage device 2 is connected to vehicle body 1 and is used for soil breaking.

[0069] The soil-shoveling device 3 has its feed end connected to the discharge end of the rotary tiller 2, and the soil-shoveling device 3 is connected to the vehicle body 1.

[0070] The conveyor belt assembly 4 has its feed end connected to the discharge end of the shovel device 3. The conveyor belt assembly 4 is used for soil conveying, and one end of the conveyor belt assembly 4 is connected to the shovel device 3.

[0071] The soil remediation agent mixing device 5 has its feed end connected to the discharge end of the conveyor belt assembly 4, and the other end of the conveyor belt assembly 4 is connected to the soil remediation agent mixing device 5. The soil remediation agent mixing device 5 is used to mix the soil and the remediation agent evenly.

[0072] The spreading device 6 has its feed end connected to the discharge end of the soil remediation agent mixing device 5. The spreading device 6 is connected to the vehicle body 1, and its discharge end faces the ground surface. It is used to spread the soil mixed with the remediation agent on the ground surface.

[0073] In use, by moving the vehicle body 1, the soil is shredded by the rotary tiller 2 as the vehicle body 1 moves forward and is transported to the shovel 3. The shovel 3 shovels up the shredded soil and, as the vehicle body 1 moves forward, the shredded soil automatically moves to the conveyor belt assembly 4 and is transported to the soil remediation agent mixing device 5. In the soil remediation agent mixing device 5, the remediation agent and soil are mixed. After mixing, the soil containing the remediation agent is spread on the ground surface by the spreading device 6, completing the soil remediation in the area. The operator can automatically complete the in-situ mixing of the remediation agent with the soil by driving the vehicle body 1, thus achieving soil remediation. Compared with the traditional method of manually excavating and mixing the soil before laying, this device is characterized by simple operation and high remediation efficiency.

[0074] The rotary tillage device 2, also known as a rotary tiller or rotary tiller, is a soil tillage machine with rotating blades as its core working component. Its structure mainly consists of a frame, transmission system (including a power input shaft, gearbox, gearbox, and universal joints), cutter shaft, rotary blades (common types include curved blades, chisel-shaped blades, right-angle blades, and arc-shaped blades), soil retaining cover, leveling slide, and depth limiting device (such as a depth limiting wheel or slide). This device drives the blades to rotate at high speed (typically 190-280 rpm) via the cutter shaft, utilizing the cutting and throwing action of the blades to achieve tillage. Its core functions include completing tillage and harrowing operations in one pass, effectively breaking up the plow pan to restore the soil's topsoil structure, enhancing the soil's water retention capacity, chopping up stubble below the surface and leveling the land, while simultaneously reducing pests, diseases, and weed growth, creating an ideal seedbed for subsequent sowing. Its working principle is based on power transmission and mechanical design: the tractor's power drives the cutter shaft to rotate through a universal joint. The blades cut into the soil along a rotational trajectory consistent with the tractor's forward direction. The reaction force generated during the cutting process helps propel the unit forward. The soil clods after being broken up are further broken up by collision with the mudguard, and then the surface is leveled by the trailer. The tillage depth is adjusted by the height of the depth-limiting wheel or the contact surface of the trailer (12-25 cm for dry tillage, 14-18 cm for paddy tillage). According to the cutter shaft configuration, it can be divided into three types: horizontal shaft type (horizontally arranged, strong soil breaking force, suitable for clearing shrubland and conventional farmland), vertical shaft type (vertically rotating, good slurry effect, suitable for paddy field tillage), and inclined type (cutter shaft installed at an angle to reduce tillage resistance). Among them, the horizontal shaft type is the most widely used, while the vertical shaft type is more popular in paddy field areas such as Japan. Modern rotary tillers have developed towards combined operations (integrating sowing, fertilization, etc.), wide-width and high-speed, and energy-saving directions, becoming an important piece of equipment in the modern agricultural mechanization production system.

[0075] By organically combining the structure of the modern rotary tillage device 2 with this device, a functional combination is achieved.

[0076] As an optional implementation, the soil remediation agent mixing device 5 includes a stone separation component and a remediation agent mixing component. The feed end of the stone separation component is connected to the discharge end of the conveyor belt component 4, the stone discharge end of the stone separation component is connected to the ground surface, and the soil discharge end of the stone separation component is connected to the feed end of the remediation agent mixing component.

[0077] Because the soil contains stones and clods, and the stones cannot be chopped up or react with the remediation agent, the stones need to be separated before the soil and remediation agent are mixed. This device uses a stone separation component to prioritize separating the stones from the clods, and then allows the clods to enter the remediation agent mixing component.

[0078] As an optional implementation, the stone separation assembly includes:

[0079] The feed cylinder 501 is fixed to the bottom of the vehicle body 1 via the support arm 508. The feed cylinder 501 has a soil and rock inlet 503 and a rock outlet 502 on both sides. The soil and rock inlet 503 is connected to the discharge end of the conveyor belt assembly 4.

[0080] The bottom end of the rotating shaft 504 is rotatably connected to the bottom inner wall of the feed cylinder 501, and the top end of the rotating shaft 504 is connected to the repair agent mixing component. An auger 523 is sleeved on the outer side of the bottom of the rotating shaft 504. The conveying direction of the auger 523 is upward, and the auger 523 is axially connected to the rotating shaft 504.

[0081] The lifting cylinder 505 is vertically slidably connected to the inner side of the feeding cylinder 501. The feeding cylinder 501 and the lifting cylinder 505 are coaxially arranged. The lifting cylinder 505 is connected to the rotating shaft 504 for transmission. The rotating shaft 504 drives the lifting cylinder 505 to repeatedly lift and lower.

[0082] Screen 507 is sleeved on the outside of lifting cylinder 505. Screen 507 is fixedly connected to lifting cylinder 505. Screen 507 is set at an angle. The high end of screen 507 is connected to soil and rock inlet 503, and the low end of screen 507 is connected to rock outlet 502.

[0083] The vibrating part is connected to the screen 507 via a transmission mechanism.

[0084] The feed end of the auger 523 is connected to the bottom chamber of the feed cylinder 501, and the feed end of the auger 523 is located below the screen 507.

[0085] As an optional implementation, the vibrating part includes two vibrators 506, which are respectively disposed at the top and bottom of the screen 507. The vibrators 506 are in contact with the screen 507, and the two vibrators 506 alternately contact the top or bottom surface of the screen 507. One vibrator 506 is fixed below the soil and rock inlet 503, and the other vibrator 506 is fixed below the stone outlet 502.

[0086] The specific work process is as follows:

[0087] The mixture of soil and stones enters the feed cylinder 501 through the soil and stone inlet 503. At this time, due to the action of the rotating shaft 504, the lifting cylinder 505 moves up and down repeatedly. The lifting cylinder 505 carries the screen 507 up and down repeatedly in the feed cylinder 501. The screen 507 is set at an inclination, and both soil and stones can roll along the screen 507. During the up and down movement of the screen 507, two vibrators 506 alternately contact the top or bottom surface of the screen 507 to make the screen 507 vibrate. The high-frequency vibration of the screen 507 can disperse the soil, while the stones cannot be dispersed and will be discharged from the stone outlet 502.

[0088] The filtered soil enters below screen 507 and is conveyed upward through auger 523 to the repair agent mixing assembly.

[0089] As an optional implementation, the repair agent mixture component includes:

[0090] The chassis 510 has a ring structure. The chassis 510 is coaxially arranged with the lifting cylinder 505 and the rotating shaft 504. The chassis 510 and the lifting cylinder 505 are vertically slidingly fitted. The mixing inner tank 512 is coaxially sleeved on the outside of the chassis 510 and is fixedly connected to the chassis 510.

[0091] The outer mixing tank 511 is coaxially sleeved on the outside of the inner mixing tank 512. The top of the inner mixing tank 512 is fixedly connected to the top inner wall of the outer mixing tank 511. The outer mixing tank 511 is fixed to the vehicle body 1. A gap is provided between the inner wall of the outer mixing tank 511 and the outer wall of the inner mixing tank 512. A partition ring 519 is provided in the middle of the gap. The partition ring 519 is coaxially sleeved on the outside of the inner mixing tank 512. The partition ring 519 divides the gap into a repair agent chamber 526 located above and a squeezing chamber 527 located below. The liquid outlet of the repair agent chamber 526 and the liquid inlet of the squeezing chamber 527 are connected through several one-way valves 521. The liquid outlet of the squeezing chamber 527 is connected to the inside of the inner mixing tank 512 through several one-way valves 522.

[0092] Several one-way valves 521 are circumferentially and equally spaced within the spacer ring 519;

[0093] Several one-way valves 522 are circumferentially and equally spaced and embedded in the side wall of the inner mixing tank 512;

[0094] Piston ring 520 is sleeved on the outside of the mixing inner barrel 512. Piston ring 520 is vertically slidably disposed in the extrusion chamber 527. The outer wall of piston ring 520 is in contact with and slidably disposed on the inner wall of the mixing outer barrel 511. Piston ring 520 is connected to the lifting cylinder 505 in a transmission connection.

[0095] A stirring assembly is installed inside the stirring inner tank 512, and the stirring assembly is connected to the rotating shaft 504 via a transmission.

[0096] The top discharge end of the mixing inner tank 512 is connected to the inlet end of the spreading device 6;

[0097] The top end of the rotating shaft 504 is connected to the output shaft of motor 3 514, and the fixed end of motor 3 514 is fixed to the outside of the top of the mixing tank 511.

[0098] The specific working process of the repair agent mixing component is as follows:

[0099] Motor 3 514 drives the rotating shaft 504 to rotate. During the rotation of the rotating shaft 504, it simultaneously drives the auger 523 to rotate and drives the lifting cylinder 505 to reciprocate up and down.

[0100] The auger 523 transports the soil into the mixing tank 512, and the rotating shaft 504 drives the mixing components to agitate the soil.

[0101] The repair agent chamber 526 is filled with repair agent and is connected to the extrusion chamber 527 through one-way valve 521. During the reciprocating lifting and lowering process of the lifting cylinder 505, the piston ring 520 moves in the extrusion chamber 527. When the piston ring 520 descends, the extrusion chamber 527 is in a negative pressure environment, which draws the repair agent from the repair agent chamber 526 into the extrusion chamber 527 through one-way valve 521. When the piston ring 520 rises, one-way valve 521 closes, and the repair agent in the extrusion chamber 527 is squeezed and enters the mixing tank 512 through one-way valve 522 to mix with the soil. The mixing components work together to achieve uniform mixing.

[0102] A check valve, also known as a non-return valve, is an automatic control valve that allows fluid to flow in only one direction. Its core function is to prevent backflow and ensure the safe operation of the system. Structurally, a check valve mainly consists of a valve body, valve disc (or valve ball), valve seat, spring, and sealing components. Common types include straight-through, right-angle, swing, lift, butterfly, and hydraulically controlled check valves. Straight-through check valves connect directly to the pipeline via threads, while right-angle check valves offer threaded, plate, or flanged connection options. Hydraulically controlled check valves, based on a conical valve core, add a control oil passage, enabling precise bidirectional flow control. In specialized fields such as liquid chromatography systems, precision ceramic components with ruby ​​valve balls and sapphire valve seats are used, achieving high-pressure sealing through nanoscale grinding processes.

[0103] The core function of a check valve is to block the reverse flow of fluid. It is widely used in hydraulic systems to prevent oil backflow, pneumatic systems to prevent compressed air backflow, water pumps to prevent siphon damage, and air compressor tanks to maintain pressure. Its working principle is based on the synergistic effect of fluid dynamics and mechanics: in forward flow, the medium pressure overcomes the spring resistance or the valve disc's gravity to open the passage; in reverse flow, the spring force, the valve disc's own weight, and the reverse pressure work together to achieve instantaneous locking. For example, swing valves rely on fluid to open the rotating valve disc, and self-repositioning after pressure loss; spring valves use medium pressure to lift the spring valve disc, and the spring depresses to close the flow channel after pressure disappears; hydraulically controlled valves unlock through external oil pressure to achieve bidirectional controllable flow.

[0104] The one-way valve 521 and one-way valve 522 of this device are spring-loaded one-way valves.

[0105] As an optional implementation, the stirring assembly includes:

[0106] The rotating cylinder 517 is sleeved on the outside of the rotating shaft 504. The bottom end of the rotating cylinder 517 is vertically limited by a limiting ring 528. The limiting ring 528 is coaxially fixed with the rotating shaft 504. The rotating cylinder 517 and the limiting ring 528 are rotatably set.

[0107] Several stirring blade groups are coaxially fixed to the outside of the rotating cylinder 517, and the several stirring blade groups are equally spaced along the height direction of the rotating cylinder 517.

[0108] The stirring blade assembly includes several stirring blades 518 arranged at equal intervals in the circumferential direction, and the stirring blades 518 are fixedly connected to the outer wall of the rotating cylinder 517.

[0109] The toothed ring 515 is sleeved on the outside of the rotating shaft 504. The toothed ring 515 is fixedly connected to the inner wall of the top of the mixing outer barrel 511. The toothed ring 515 is connected to the rotating cylinder 517 in a transmission manner.

[0110] The gear ring 515 is engaged with a plurality of gears 516, the gears 516 are rotatably disposed with the rotating shaft 504, the plurality of gears 516 are equally spaced around the rotating shaft 504, and the gears 516 are engaged with the top of the rotating cylinder 517.

[0111] A protective sleeve 513 is coaxially sleeved on the outer side of the gear ring 515. The protective sleeve 513 is fixedly connected to the inner wall of the top of the mixing outer barrel 511, and the protective sleeve 513 covers the outer side of several gears 516.

[0112] The working process of the stirring component is as follows:

[0113] When the rotating shaft 504 rotates, it drives several gears 516 to rotate. Under the meshing action of the gear ring 515 and the gear 516, the gear 516 rotates on its own. The rotation of the gear 516 drives the rotating cylinder 517 to rotate relative to the rotating shaft 504, and drives multiple mixing blades 518 to stir the soil, so as to achieve the mixing of soil and remediation agent.

[0114] As an optional implementation, the rotating shaft 504 has a V-shaped continuous bending slide 524 with the ends connected. There are two symmetrically arranged slide rods 525 slidingly fitted inside the V-shaped continuous bending slide 524. The slide rods 525 are fixedly connected to the inner wall of the lifting cylinder 505. When the slide rods 525 slide along the V-shaped continuous bending slide 524, they drive the lifting cylinder 505 to move back and forth in the vertical direction.

[0115] The piston ring 520 is connected to the outer wall of the lifting cylinder 505 via several L-connecting rods 509. One end of the L-connecting rod 509 is fixed to the outer wall of the lifting cylinder 505, and the other end of the L-connecting rod 509 is fixed to the bottom of the piston ring 520. Several L-connecting rods 509 are arranged at equal intervals around the circumference.

[0116] The rotating shaft 504 has a V-shaped continuous bending slide 524 with the beginning and end connected. When the rotating shaft 504 rotates, the slide rod 525 moves in the V-shaped continuous bending slide 524. The slide rod 525 moves continuously from the top end to the bottom end and then back to the top end in the V-shaped continuous bending slide 524. During this process, the lifting cylinder 505 is driven to rise and fall.

[0117] The piston ring 520 is connected to the outer wall of the lifting cylinder 505 via several L-connecting rods 509, so that the lifting cylinder 505 drives the piston ring 520 to rise and fall via the L-connecting rods 509.

[0118] As an optional implementation, the rotary tillage device 2 includes:

[0119] Rotary tiller 204, with slide rod 203 rotatably connected to both ends of rotary tiller 204. Slide rod 203 slides vertically on the inner side of column 201. Column 201 is fixed to the bottom of vehicle body 1. Spring 202 is provided between the inner wall of column 201 and the top of slide rod 203. One end of spring 202 is fixed to the inner wall of column 201, and the other end of spring 202 is fixed to the top of slide rod 203.

[0120] Motor 205, the output shaft of motor 205 is axially connected to one end of rotary tiller 204, and the fixed end of motor 205 is fixedly connected to any slide bar 203.

[0121] The rotary tiller blade 204 is driven to rotate by motor 205, which can chop the soil. The spring 202 ensures that the rotary tiller blade 204 is in contact with the soil.

[0122] As an optional implementation, the earthmoving device 3 includes:

[0123] The shovel 304 has two sliding rods 303 fixedly connected to its two ends. The sliding rods 303 slide vertically on the inside of the column 301. The column 301 is fixedly connected to the bottom of the vehicle body 1. A spring 302 is provided between the inner wall of the column 301 and the top of the sliding rod 303. One end of the spring 302 is fixedly connected to the inner wall of the column 301, and the other end of the spring 302 is fixedly connected to the top of the sliding rod 303.

[0124] One end of the connecting rod 305 is fixed to the bottom of the slide rod 303. One of the rotating shafts of the conveyor belt assembly 4 is rotatably arranged between the two connecting rods 305. One of the connecting rods 305 is fixed to the fixed end of the motor 306. The output shaft of the motor 306 is shaft-connected to the rotating shaft of the conveyor belt assembly 4.

[0125] The setting of spring 2 302 ensures that the feed end of the slope shovel 304 is in contact with the soil, which can shovel up the divided soil blocks. As the vehicle body 1 moves, the broken soil blocks move towards the feed end of the conveyor belt assembly 4. The output shaft of motor 2 306 is connected to the rotating shaft of the conveyor belt assembly 4. Motor 2 306 is installed on one of the connecting rods 305, which can realize the transportation of soil.

[0126] The conveyor belt assembly 4 includes two rotating shafts and a conveyor belt wound around the outside of the two rotating shafts. The rotating shafts and the conveyor belt are driven by friction. One of the rotating shafts is rotatably disposed between two connecting rods 305, and the other rotating shaft is rotatably disposed at the soil and rock inlet 503.

[0127] As an optional implementation, the spreading device 6 includes:

[0128] The discharge channel 601 is connected to the bottom inlet end of the discharge channel 601 and the top outlet end of the mixing inner barrel 512. The discharge channel 601 is fixed to the mixing outer barrel 511.

[0129] The high end of the ramp 602 is connected to the discharge end of the discharge channel 601, and the low end of the ramp 602 is fixed to the vehicle body 1.

[0130] As the soil in the mixing tank 512 increases until it is full, the soil that subsequently enters the mixing tank 512 will squeeze the soil that has been mixed with the repair agent into the discharge channel 601, and then enter the slope 602 through the discharge channel 601, and slide down the vehicle body 1 under the action of gravity.

[0131] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to 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 this invention.

[0132] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A high-efficiency mixing device for soil remediation agents used in ecological restoration, characterized in that, include: Vehicle body (1); Rotary tillage device (2) is located at the front end of the vehicle body (1) in the direction of travel. The rotary tillage device (2) is connected to the vehicle body (1) and is used for soil breaking. The soil-shoveling device (3) has its feed end connected to the discharge end of the rotary tillage device (2), and the soil-shoveling device (3) is connected to the vehicle body (1). The conveyor belt assembly (4) has its feed end connected to the discharge end of the shovel device (3). The conveyor belt assembly (4) is used for soil conveying, and one end of the conveyor belt assembly (4) is connected to the shovel device (3). The soil remediation agent mixing device (5) has its feed end connected to the discharge end of the conveyor belt assembly (4), and the other end of the conveyor belt assembly (4) is connected to the soil remediation agent mixing device (5). The soil remediation agent mixing device (5) is used to mix the soil and the remediation agent evenly. The spreading device (6) has its feed end connected to the discharge end of the soil remediation agent mixing device (5). The spreading device (6) is connected to the vehicle body (1). The discharge end of the spreading device (6) faces the ground surface and is used to spread the soil mixed with the remediation agent on the ground surface. The soil remediation agent mixing device (5) includes a stone separation component and a remediation agent mixing component. The inlet end of the stone separation component is connected to the outlet end of the conveyor belt component (4). The stone outlet end of the stone separation component is connected to the ground surface. The soil outlet end of the stone separation component is connected to the inlet end of the remediation agent mixing component. The stone separation component includes: The feed cylinder (501) is fixed to the bottom of the vehicle body (1) via the support arm (508). The feed cylinder (501) has a soil and rock inlet (503) and a stone outlet (502) on both sides respectively. The soil and rock inlet (503) is connected to the discharge end of the conveyor belt assembly (4). The bottom end of the rotating shaft (504) is rotatably connected to the bottom inner wall of the feed cylinder (501), the top end of the rotating shaft (504) is connected to the repair agent mixing assembly, and an auger (523) is sleeved on the bottom outer side of the rotating shaft (504). The conveying direction of the auger (523) is upward, and the auger (523) is axially connected to the rotating shaft (504). The lifting cylinder (505) is vertically slidably connected to the inside of the feeding cylinder (501). The feeding cylinder (501) and the lifting cylinder (505) are coaxially arranged. The lifting cylinder (505) is connected to the rotating shaft (504) for transmission. The rotating shaft (504) drives the lifting cylinder (505) to repeatedly lift and lower. A screen (507) is sleeved on the outside of the lifting cylinder (505). The screen (507) is fixedly connected to the lifting cylinder (505). The screen (507) is inclined. The high end of the screen (507) is connected to the soil and rock inlet (503), and the low end of the screen (507) is connected to the stone outlet (502). The vibrating part is connected to the screen (507) in a transmission manner; The feed end of the auger (523) is connected to the bottom chamber of the feed cylinder (501), and the feed end of the auger (523) is located below the screen (507); The vibrating part includes two vibrators (506), which are respectively disposed at the top and bottom of the screen (507). The vibrators (506) are in contact with the screen (507), and the two vibrators (506) alternately contact the top or bottom surface of the screen (507). One of the vibrators (506) is fixed below the soil and rock inlet (503), and the other vibrator (506) is fixed below the stone outlet (502).

2. The high-efficiency mixing device for soil remediation agents for ecological restoration according to claim 1, characterized in that, The repair agent mixture includes: The chassis (510) is a ring structure. The chassis (510) is coaxially arranged with the lifting cylinder (505) and the rotating shaft (504). The chassis (510) and the lifting cylinder (505) are vertically slidingly engaged. A stirring inner barrel (512) is coaxially sleeved on the outside of the chassis (510). The stirring inner barrel (512) is fixedly connected to the chassis (510). An outer mixing tank (511) is coaxially sleeved on the outside of an inner mixing tank (512). The top of the inner mixing tank (512) is fixedly connected to the top inner wall of the outer mixing tank (511). The outer mixing tank (511) is fixed to the vehicle body (1). A gap is provided between the inner wall of the outer mixing tank (511) and the outer wall of the inner mixing tank (512). A spacer ring (519) is provided in the middle of the gap. The spacer ring (519) is coaxially sleeved on the outer mixing tank (512). On the outside of the mixing inner tank (512), the partition ring (519) divides the gap into an upper repair agent chamber (526) and a lower extrusion chamber (527). The liquid outlet of the repair agent chamber (526) and the liquid inlet of the extrusion chamber (527) are connected by several one-way valves (521). The liquid outlet of the extrusion chamber (527) is connected to the inside of the mixing inner tank (512) by several one-way valves (522). Several of the one-way valves (521) are circumferentially and equally spaced within the spacer ring (519); Several of the one-way valves (522) are circumferentially and equally spaced and embedded in the side wall of the stirring inner tank (512); A piston ring (520) is sleeved on the outside of the inner mixing tank (512). The piston ring (520) is vertically slidably disposed in the extrusion chamber (527). The outer wall of the piston ring (520) is in contact with and slidably disposed on the inner wall of the outer mixing tank (511). The piston ring (520) is connected to the lifting cylinder (505) in a transmission connection. A stirring assembly is disposed inside the stirring inner tank (512), and the stirring assembly is connected to the rotating shaft (504) for transmission. The top discharge end of the mixing inner tank (512) is connected to the feed end of the spreading device (6); The top end of the rotating shaft (504) is connected to the output shaft of the third motor (514), and the fixed end of the third motor (514) is fixed to the outside of the top of the stirring tank (511).

3. The high-efficiency mixing device for soil remediation agents for ecological restoration according to claim 2, characterized in that, The stirring assembly includes: A rotating cylinder (517) is sleeved on the outside of the rotating shaft (504). The bottom end of the rotating cylinder (517) is vertically limited by a limiting ring (528). The limiting ring (528) is coaxially fixed with the rotating shaft (504). The rotating cylinder (517) and the limiting ring (528) are rotatably arranged. Several stirring blade groups are coaxially fixed to the outside of the rotating cylinder (517), and the several stirring blade groups are equally spaced along the height direction of the rotating cylinder (517). The stirring blade assembly includes several stirring blades (518) arranged circumferentially at equal intervals, and the stirring blades (518) are fixedly connected to the outer wall of the rotating cylinder (517). A toothed ring (515) is sleeved on the outside of the rotating shaft (504). The toothed ring (515) is fixedly connected to the inner wall of the top of the stirring outer barrel (511). The toothed ring (515) is connected to the rotating cylinder (517) in a driving connection. The gear ring (515) is engaged with a plurality of gears (516), the gears (516) are rotatably disposed with the rotating shaft (504), the plurality of gears (516) are circumferentially spaced around the rotating shaft (504), and the gears (516) are engaged with the top of the rotating cylinder (517); A protective sleeve (513) is coaxially sleeved on the outside of the gear ring (515). The protective sleeve (513) is fixedly connected to the inner wall of the top of the mixing tank (511). The protective sleeve (513) covers the outside of several gears (516).

4. The high-efficiency mixing device for soil remediation agents for ecological restoration according to claim 3, characterized in that: The rotating shaft (504) has a V-shaped continuous bending slide (524) with the ends connected. There are two symmetrically arranged slide rods (525) slidingly fitted inside the V-shaped continuous bending slide (524). The slide rods (525) are fixedly connected to the inner wall of the lifting cylinder (505). When the slide rods (525) slide along the V-shaped continuous bending slide (524), they drive the lifting cylinder (505) to move back and forth in the vertical direction. The piston ring (520) is connected to the outer wall of the lifting cylinder (505) by a plurality of L-links (509). One end of the L-link (509) is fixed to the outer wall of the lifting cylinder (505), and the other end of the L-link (509) is fixed to the bottom of the piston ring (520). The plurality of L-links (509) are arranged at equal intervals around the circumference.

5. The high-efficiency mixing device for soil remediation agents for ecological restoration according to claim 1, characterized in that, The rotary tillage device (2) includes: Rotary tiller (204), with slide rods (203) rotatably connected to both ends of the rotary tiller (204). The slide rods (203) slide vertically on the inner side of the column (201). The column (201) is fixedly connected to the bottom of the vehicle body (1). A spring (202) is provided between the inner wall of the column (201) and the top of the slide rod (203). One end of the spring (202) is fixedly connected to the inner wall of the column (201), and the other end of the spring (202) is fixedly connected to the top of the slide rod (203). Motor 1 (205), the output shaft of which is axially connected to one end of the rotary tiller (204), and the fixed end of the motor 1 (205) is fixedly connected to any of the slide rods 1 (203).

6. The high-efficiency mixing device for soil remediation agents for ecological restoration according to claim 1, characterized in that, The soil-moving device (3) includes: A shovel (304) has two ends of a sliding rod (303) fixedly connected to each other. The sliding rod (303) slides vertically on the inside of a column (301). The column (301) is fixedly connected to the bottom of the vehicle body (1). A spring (302) is provided between the inner wall of the column (301) and the top of the sliding rod (303). One end of the spring (302) is fixedly connected to the inner wall of the column (301), and the other end of the spring (302) is fixedly connected to the top of the sliding rod (303). One end of the connecting rod (305) is fixed to the bottom of the slide bar (303). One of the rotating shafts of the conveyor belt assembly (4) is rotatably disposed between the two connecting rods (305). One of the connecting rods (305) is fixed to the fixed end of the motor (306). The output shaft of the motor (306) is shaft-connected to the rotating shaft of the conveyor belt assembly (4).

7. The high-efficiency mixing device for soil remediation agents for ecological restoration according to claim 2, characterized in that, The spreading device (6) includes: The discharge channel (601) has a bottom inlet end connected to the top outlet end of the mixing inner barrel (512), and the discharge channel (601) is fixed to the mixing outer barrel (511). The ramp (602) has its high end connected to the discharge end of the discharge channel (601), and its low end is fixed to the vehicle body (1).

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