Uniform spreading equipment for soil heavy metal passivator
Through the uniform dispersion equipment of soil heavy metal passivator with a combined structure of spiral conveying blades and inner linings, the problem of dispersion of nano-level passivator is solved, and uniform dispersion and efficient passivation effects are achieved, and the soil repair effect is improved.
Patent Information
- Application Number
- CN202510819009.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-18
- Publication Date
- 2025-08-01
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing soil heavy metal passivator uniform dispersion equipment is difficult to effectively disperse when dealing with new nano-scale passivators such as biomass carbon-loaded nano-zero-valent iron, resulting in excessive local concentration and poor overall uniformity during dispersion, which affects the effect of heavy metal passivation.
A soil heavy metal passivator uniform dispersion device is adopted to disperse materials through a combined structure of spiral conveying blades and cylindrical linings, and the materials are dispersed by interlayer shear force and mechanical force, combined with the flexible material of the lining and wavy raised structure to prevent agglomeration, and further disperse materials through the filter holes and tooth block structure to ensure uniform dispersion.
Effectively prevent material agglomeration, improve the uniformity of the passivation agent and the passivation effect of heavy metals, and enhance the contact area and reaction efficiency of the passivation agent with the soil.
Smart Images
Figure CN120394543A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of soil improvement equipment, and particularly to a device for evenly spreading a soil heavy metal passivator. Background Art
[0002] Soil heavy metal pollution has become a global environmental problem, seriously threatening the stability of the ecosystem and the health and safety of humans. As a key equipment for repairing polluted soil, the device for evenly spreading a soil heavy metal passivator spreads the passivator (such as biomass charcoal loaded with nano-zero-valent iron, lime, organic materials, etc.) evenly on the soil surface, promoting adsorption, precipitation or complexation reactions of heavy metal ions, reducing their bioavailability and mobility, so as to achieve the purpose of soil remediation. The performance of this device directly affects the contact efficiency between the passivator and the polluted soil and the remediation effect, and occupies an important position in the soil remediation project.
[0003] Currently, the existing devices for evenly spreading a soil heavy metal passivator mainly adopt traditional spreading methods. For example, most devices use gravity discharging from a hopper in combination with a rotating spreading disk for spreading, that is, the material naturally leaks out from the discharging port of the hopper and falls onto the high-speed rotating spreading disk, and then the passivator is scattered onto the soil surface by centrifugal force. This method has the characteristic of high spreading uniformity; some devices adopt the form of pneumatic conveying combined with spraying by a nozzle, and the passivator is conveyed to the nozzle by compressed air and atomized and sprayed out.
[0004] However, when the existing spreading devices are dealing with new nano-scale passivators such as biomass charcoal loaded with nano-zero-valent iron, due to the small particles of biomass charcoal loaded with nano-zero-valent iron, which have high surface energy and magnetism and are extremely prone to agglomeration, traditional gravity discharging or simple stirring methods are difficult to effectively disperse them, resulting in too high local concentration and poor overall uniformity during spreading, seriously affecting the heavy metal passivation effect.
[0005] Therefore, it is necessary to provide a device for evenly spreading a soil heavy metal passivator to solve the above technical problems. Summary of the Invention
[0006] In view of the problems existing in the prior art, the present invention provides a device for evenly spreading a soil heavy metal passivator.
[0007] The technical solution adopted by the present invention to solve its technical problems is: a soil heavy metal passivator uniform spreading device, comprising a base plate, the top of the base plate is symmetrically welded with side plates, the center line positions of the two side plates are each installed with a support shaft, the opposite surfaces of the two support shafts are fixedly connected to the support plates, a fixed plate is installed between the two support plates, a first shaft frame is provided at the center position of the opposite surfaces of the two fixed plates, the center positions of the fixed plate and the first shaft frame are each provided with a placement hole, the outer sides of the two first shaft frames are rotatably sleeved with circular plates, the two circular plates are fixedly connected and sealed by a cylinder, the outer side of the cylinder is equipped with a feeding port, and the internal chamber of the combination of the two circular plates and the cylinder is a storage chamber; A driving motor is installed on the outer side of one side plate through a motor fixing frame, and the output end of the driving motor is concentrically connected to one of the support shafts. A positioning bevel gear is installed on the inner side wall of any side plate through a positioning plate, and the positioning bevel gear and the support shaft are axially overlapped. One side of the positioning bevel gear is meshed with a driving bevel gear shaft, and the driving bevel gear shaft is fixedly installed on the outer side wall of the support plate through a second shaft frame; A first driving wheel is installed at the bottom of the driving bevel gear shaft, and the first driving wheel is connected to the second driving wheel through a first synchronous belt. A sealing shaft is fixedly connected to the center of the top of the second driving wheel, and the sealing shaft is installed in one of the placement holes. A conveying shaft is installed at the center of one end surface of the sealing shaft facing the storage chamber, and the end of the conveying shaft is exposed to the storage chamber. A spiral conveying blade is installed on the outer ring of the conveying shaft, and the outer ring of the spiral conveying blade is in contact with the inner wall of the placement hole at another position; The outer wall of the side plate is symmetrically installed with a placement rack, and the side walls of the two placement racks on the same side are installed with arc-shaped plates through support rods, and the center of curvature of the arc-shaped plate is located on the center line of the support shaft. A first annular plate is arranged between the inner end faces of the two arc-shaped plates, and the inner circle of the first annular plate is flush with the inner circle of the arc-shaped plate. A leakage hole is opened at the bottom position of the first annular plate in the vertical direction, and a unloading plate is arranged directly below the leakage hole. The side wall of the unloading plate is connected and fixed to the inner side of the side plate through a round rod, and a spreading plate is arranged directly below the end of the unloading plate, and the spreading plate is driven by a control motor.
[0008] Preferably, a first conical cylinder is provided on the inner wall of the cylinder at one end facing the sealing shaft, a hollow cylindrical block is welded at the end position of the short diameter end of the first conical cylinder, and the inner wall of the hollow cylindrical block is close to the outer wall of the conveying shaft, a circular ring block is fixedly installed on the inner wall of the circular plate on the side facing away from the sealing shaft, and a second conical cylinder is fixedly installed at the end position of the circular ring block, the short diameter end of the second conical cylinder is in contact with the end face of the first shaft frame but not connected, and the first conical cylinder, the second conical cylinder and the conveying shaft are coaxial.
[0009] Preferably, the inner side walls of the cylinder, the first conical cylinder and the second conical cylinder are all provided with linings, and the linings are components made of silicone material.
[0010] Preferably, a slot is provided at the center position of the inner end face of the arc-shaped plate. A second annular plate is inserted into the slot. The second annular plate and the first annular plate are concentrically arranged, and the diameter of the second annular plate is smaller than that of the first annular plate. Filter holes are equiangularly arranged along the circumferential direction on the outer side of the second annular plate.
[0011] Preferably, tooth blocks are arranged on the outer surface of the outer ring of the second annular plate along its path direction. A driving gear is meshed and connected directly above the tooth blocks. A shaft rod is fixedly connected to the center position of one end face of the driving gear. The outer side of the shaft rod is supported and fixed by a shaft seat, and the shaft seat is detachably installed on the top of the side plate. A first synchronous pulley is installed at the other end of the shaft rod. A second synchronous pulley is connected to the end of the other support shaft not connected to the driving motor, and the first synchronous pulley and the second synchronous pulley are connected by a second synchronous belt.
[0012] Preferably, an inclined rod is fixedly installed on the outer side of the conveying shaft and between the spiral conveying blade and the hollow cylindrical block. A wavy protrusion is provided on the inner side wall of the lining.
[0013] Preferably, the vertical cross-section of the second annular plate passing through the axis is in a V-shaped structure with two opposite openings, and antistatic coatings are applied to both the inner and outer side surfaces of the second annular plate.
[0014] Preferably, steel balls are provided at the connection between the second frustum-shaped cylinder and the first shaft bracket, and lubricating grease is applied to the surfaces of the steel balls.
[0015] Compared with the related art, a soil heavy metal passivator uniform spreading device provided by the present invention has the following beneficial effects: (1) The present invention provides a soil heavy metal passivator uniform spreading device. When the support plate and the fixing plate rotate, they will drive the storage chamber composed of two circular plates and a cylinder to rotate. At this time, a speed difference is generated in the material particles stored in the storage chamber. For example, the linear velocity at the inner wall of the support plate is greater than that at the center of the storage chamber, forming an interlayer shear force, effectively preventing the material from agglomerating. Similarly, the agglomerated material can be broken. The spiral conveying blade rotates to stir the material a second time, so that the material located in the storage chamber is further broken, further improving the anti-agglomeration effect, making the material not easy to agglomerate during the spreading operation, and the material can be effectively dispersed before spreading, effectively avoiding the situation of too high local concentration and poor overall uniformity during spreading, and effectively improving the metal passivation effect.
[0016] (2) The present invention provides a device for evenly spreading a soil heavy metal passivator. In the present invention, the storage chamber is divided into a conical surface by the first frustum cylinder and the second frustum cylinder on the initial plane of the circular plate, which can effectively avoid the accumulation of the stored materials in the storage chamber. The inner side walls of the cylinder, the first frustum cylinder and the second frustum cylinder are all provided with lining members, and the lining member is a component made of a silicone material. The rubber material is a flexible material, and the elastic collision of the flexible material is used to reduce the crushing loss of the material particles, such as the oxidation risk of nano zero-valent iron. At the same time, the wavy convex structure can guide the material to form longitudinal tumbling, further avoiding the occurrence of layered accumulation.
[0017] (3) The present invention provides a device for evenly spreading a soil heavy metal passivator. In the present invention, after the support shaft rotates, it synchronously drives the second synchronous wheel to rotate. The rotating second synchronous wheel drives the first synchronous wheel to rotate through the second synchronous belt. After the first synchronous wheel rotates, it drives the shaft rod to rotate in the shaft seat, and the driving gear arranged at the other end of the shaft rod rotates synchronously with it and gradually engages with several matching tooth blocks, thereby driving the second annular plate to rotate in the slot. The rotating second annular plate drives its own filter holes to rotate axially. When the agglomerated passivator material contacts the hole edge of the filter hole, the mechanical force generated by the rotation will disperse it, ensuring that the material falling into the spreading plate exists in a uniform fine particle state, improving the contact area and reaction efficiency between the passivator and the heavy metal in the soil, and further improving the metal passivation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a three-dimensional view of the overall structure of the present invention; Figure 2 is a three-dimensional view of a part of the present invention Figure 1 ; Figure 3 is a three-dimensional view of a part of the present invention Figure 2 ; Figure 4 is of the present invention Figure 3 a partial enlarged schematic view of area A in; Figure 5 is of the present invention Figure 3 a partial enlarged schematic view of area B in; Reference numerals in the figure: 1, base plate; 2, side plate; 3, support plate; 4, fixing plate; 5, circular plate; 6, cylinder; 7, discharge plate; 8, spreading plate; 9, driving gear; 20, placing rack; 21, support shaft; 22, driving motor; 23, positioning bevel gear; 24, driving bevel gear shaft; 25, second shaft bracket; 26, first driving wheel; 27, second driving wheel; 28, sealing shaft; 29, conveying shaft; 41, first shaft bracket; 201, arc plate; 202, first annular plate; 203, leakage hole; 204, slot; 205, second annular plate; 206, filtering hole; 207, tooth block; 61, first frustum cylinder; 62, hollow cylindrical block; 63, ring block; 64, second frustum cylinder; 65, lining piece; 91, shaft rod; 92, shaft seat; 93, first synchronous pulley; 94, second synchronous pulley; 291, spiral conveying blade; 292, inclined rod; 293, wavy protrusion. Detailed implementation mode
[0019] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation modes.
[0020] In addition, the terms in the following text are defined based on the functions in the present invention and may be different according to the intentions or conventions of users and operators. Therefore, these terms are defined based on the entire content of this specification.
[0021] Please refer to Figures 1-5 , a uniform spreading device for soil heavy metal passivator according to the present invention includes a base plate 1. The top of the base plate 1 is symmetrically welded with side plates 2. The base plate 1 and the side plates 2 are both components made of a high-strength steel structure material. Specifically, they are fixedly connected by spot welding to ensure that the two have a high connection strength and are not easily deformed; The bottom of the base plate 1 is equipped with traveling wheels, and one end of the base plate 1 facing away from the traveling wheels is equipped with a towing head. The towing head is connected to an existing towing device, such as an agricultural towing tractor. The traveling wheels, the towing head and the towing device are all prior arts, and the present invention does not elaborate on their connection and working principles with each other; Support shafts 21 are installed at the center line positions of both side plates 2. The opposite surfaces of the two support shafts 21 are fixedly connected with support plates 3. A fixing plate 4 is installed between the two support plates 3. In this embodiment, the composition structure of the support plate 3 and the fixing plate 4 is a regular quadrilateral structure; A first shaft bracket 41 is arranged at the center position of the opposite surfaces of the two fixing plates 4. Placing holes 42 are opened at the center positions of the fixing plates 4 and the first shaft bracket 41. Circular plates 5 are rotatably sleeved outside the two first shaft brackets 41, and the two circular plates 5 are fixedly connected and sealed through a cylinder 6; A feeding port is provided on the outer side of the cylinder 6, and the inner chamber formed by the combination of the two circular plates 5 and the cylinder 6 is a storage chamber. The sealing panel of the feeding port can be made of a transparent material, which is convenient for adding materials (the materials refer to passivators) and can observe the material storage amount in the storage chamber at the same time; A driving motor 22 is installed on the outer side of one of the side plates 2 through a motor fixing bracket. The output end of the driving motor 22 is concentrically connected to one of the support shafts 21. When the driving motor 22 works, it can drive the support shaft 21 to rotate. One of the rotating support shafts 21 drives the regular quadrilateral structure composed of the support plate 3 and the fixing plate 4 to rotate along Figure 2 the N direction in. The other support shaft 21 rotates synchronously inside the side plate 2. When the support plate 3 and the fixing plate 4 rotate, they will drive the storage chamber formed by the combination of the two circular plates 5 and the cylinder 6 to rotate. At this time, a speed difference is generated in the material particles stored in the storage chamber. For example, the linear velocity at the inner wall of the support plate 3 is greater than that at the center of the storage chamber, forming an interlayer shear force, effectively preventing the material from agglomerating, and similarly, the agglomerated material can be broken; A positioning bevel gear 23 is installed on the inner wall of any one of the side plates 2 through a positioning plate, and the positioning bevel gear 23 and the support shaft 21 are axially coincident. The positioning bevel gear 23 is stationary relative to the side plate 2, and there is no relative movement between the two; One side of the positioning bevel gear 23 is meshed with a driving bevel gear shaft 24. The driving bevel gear shaft 24 is fixedly installed on the outer wall of the support plate 3 through a second shaft bracket 25. When the present invention rotates in the N direction as shown in Figure 2 , it synchronously drives the driving bevel gear shaft 24 to rotate in the same direction. While the driving bevel gear shaft 24 rotates in the N direction, it gradually meshes with the positioning bevel gear 23, causing the driving bevel gear shaft 24 to rotate self - rotatably in the second shaft bracket 25; A first driving wheel 26 is installed at the bottom of the driving bevel gear shaft 24. The first driving wheel 26 is connected to a second driving wheel 27 through a first synchronous belt. A sealing shaft 28 is fixedly connected to the center position at the top of the second driving wheel 27, and the sealing shaft 28 is installed in one of the placement holes 42. The outer diameter of the sealing shaft 28 is equal to the inner diameter of the placement hole 42. In the non - working state, the sealing shaft 28 is stationary in the placement hole 42 and seals it to prevent the material from leaking out through the gap between the two; The movement mode of the first driving wheel 26 is consistent with that of the driving bevel gear shaft 24. That is, it can be understood that the driving bevel gear shaft 24 drives the first driving wheel 26 to rotate together. The rotating first driving wheel 26 drives the second driving wheel 27 to rotate through the first synchronous belt, and then the second driving wheel 27 drives the sealing shaft 28 to rotate in the placement hole 42; At the center position of the end face of the sealing shaft 28 facing the storage chamber, a conveying shaft 29 is installed, and the end of the conveying shaft 29 extends out of the storage chamber. A spiral conveying blade 291 is installed on the outer circle of the conveying shaft 29, and the outer circle of the spiral conveying blade 291 contacts the inner wall of another placement hole 42. When the sealing shaft 28 rotates, the spiral conveying blade 291 is driven to rotate by the conveying shaft 29. On the one hand, the spiral conveying blade 291 rotates to stir the material twice, so that the material located in the storage chamber is further broken, further improving the anti-agglomeration effect. On the other hand, the spiral conveying blade 291 can drive the material to another placement hole 42 (this placement hole 42 is referred to as Figure 5 shown and marked as the H-end placement hole 42), and is discharged from this placement hole 42; It should be noted that in the static state of the present invention, some blades of the spiral conveying blade 291 can partially seal the H-end placement hole 42 as shown in Figure 5 shown, and the H-end placement hole 42 is horizontally upward in the normal state. Therefore, when adding materials, the H-end placement hole 42 will not leak materials; Placement frames 20 are symmetrically installed on the outer side wall of the side plate 2. The side walls of two placement frames 20 on the same side are installed with arc plates 201 through support rods, and the center of curvature of the arc plates 201 is located on the center line of the support shaft 21. A first annular plate 202 is arranged between the inner end faces of the two arc plates 201, and the inner circle of the first annular plate 202 is flush with the inner circle of the arc plate 201. The placement holes 42 rotate synchronously in the N direction as shown in Figure 2 shown during operation. Therefore, when the placement holes 42 discharge materials, the materials will be thrown towards the inner wall of the first annular plate 202 under the action of centrifugal force, and when contacting the first annular plate 202, the materials will generate a certain impact force with it, and the remaining agglomerated materials will be further broken through this impact force. The broken materials slide down along the inner side wall of the first annular plate 202 under the action of their own gravity; Leak holes 203 are opened at the bottom position of the first annular plate 202 in the vertical direction. A discharge plate 7 is arranged directly below the leak holes 203. The discharge plate 7 is inclined relative to the horizontal plane. The side wall of the discharge plate 7 is connected and fixed to the inner side of the side plate 2 through a round rod. A spreading disk 8 is arranged directly below the end of the discharge plate 7, and the spreading disk 8 is driven by a control motor. During operation, the control motor drives the spreading disk 8 to be in an open state. In this embodiment, the spreading disk 8 and the control motor are both prior arts, and their specific working principles will not be elaborated; When the broken materials pass through the leak holes 203, they fall onto the discharge plate 7 and then fall onto the spreading disk 8 along the discharge plate 7. The high-speed rotating spreading disk 8 centrifugally throws the materials to achieve the effect of uniform spreading of the soil heavy metal passivator; At the same time, when the present invention is performing as shown in Figure 2When rotating in the N direction as shown, the material stored in the storage chamber will impact the inner ring of the cylinder 6, and this impact force can exert a circumferential extrusion force on the inner wall of the cylinder 6, enabling the assembly of the cylinder 6 and the circular plate 5 to shake along Figure 2 the M direction shown. Specifically, it can be understood that the two circular plates 5 rotate slightly along the first shaft bracket 41 as shown in Figure 2 M, thereby driving the cylinder 6 to shake, and then causing the material to shake axially. Combining the above, during the spreading operation of this embodiment, the material is not prone to agglomeration, and the material is effectively dispersed before spreading, effectively avoiding the situation of too high local concentration and poor overall uniformity during spreading, and effectively improving the metal passivation effect; Refer to Figures 1-5 As shown, an inclined rod 292 is fixedly installed at a position outside the conveying shaft 29 and between the spiral conveying blade 291 and the hollow cylindrical block 62. The inclined rod 292 rotates with the conveying shaft 29, and after rotation, the inclined rod 292 will contact the material in the storage chamber and exert a circumferential enhanced stirring effect on the material.
[0022] In another embodiment, a first frustum-shaped cylinder 61 is provided on the inner wall of one end of the inner wall of the cylinder 6 facing the sealing shaft 28. A hollow cylindrical block 62 is welded at the end of the short diameter end of the first frustum-shaped cylinder 61, and the inner wall of the hollow cylindrical block 62 closely abuts against the outer wall of the conveying shaft 29. The hollow cylindrical block 62 can support the outside of the conveying shaft 29, effectively increasing the external support force of the conveying shaft 29 and preventing the conveying shaft 29 from deforming during operation; A ring block 63 is fixedly installed on the inner wall of the circular plate 5 on the side facing away from the sealing shaft 28. A second frustum-shaped cylinder 64 is fixedly installed at the end of the ring block 63. The short diameter end of the second frustum-shaped cylinder 64 contacts but is not connected to the end face of the first shaft bracket 41, and the first frustum-shaped cylinder 61, the second frustum-shaped cylinder 64, and the conveying shaft 29 are coaxial. The storage chamber is divided into a conical surface by the first frustum-shaped cylinder 61 and the second frustum-shaped cylinder 64 in the initial plane of the circular plate 5, effectively avoiding the situation of material accumulation in the storage chamber; Steel balls are provided at the connection between the second frustum-shaped cylinder 64 and the first shaft bracket 41, and lubricating grease is coated on the surface of the steel balls to reduce the mutual wear between the two.
[0023] Furthermore, refer to Figure 3 and Figure 4 As shown, lining members 65 are provided on the inner side walls of the cylinder 6, the first frustum-shaped cylinder 61, and the second frustum-shaped cylinder 64, and the lining member 65 is a component made of a silicone material. The rubber material is a flexible material, and the elastic collision of the flexible material is used to reduce the breakage loss of material particles, such as the oxidation risk of nano zero-valent iron; At the same time, when the lining member 65 made of silicone material contacts the material, it can reduce electrostatic adsorption (the rubber insulation can be improved through grounding treatment); Moreover, the inner side wall of the inner lining member 65 is provided with wavy protrusions 293. The height of the wavy protrusions 293 is 1-2 cm, and the spacing is 5-8 cm. When the present invention rotates along the N direction, the structure of the wavy protrusions 293 can guide the material to form longitudinal tumbling, further avoiding the occurrence of stratified accumulation phenomenon.
[0024] In another embodiment, referring to Figures 1-5 , a slot 204 is provided at the center position of the inner end face of the arc-shaped plate 201. A second annular plate 205 is inserted into the slot 204. The second annular plate 205 and the first annular plate 202 are concentrically arranged, that is, the design of the first annular plate 202 does not interfere with the installation of the second annular plate 205; Moreover, the diameter of the second annular plate 205 is smaller than that of the first annular plate 202. Filter holes 206 are equiangularly arranged along the circumferential direction on the outer side of the second annular plate 205. Therefore, in this embodiment, the material falling from the leakage hole 203 will first enter the second annular plate 20, and after being screened by the filter holes 206 provided on the second annular plate 20, it will fall onto the discharge plate 7, thereby further screening out the agglomerated material.
[0025] In another embodiment, referring to Figures 1-5 , tooth blocks 207 are arranged on the outer surface of the outer ring of the second annular plate 205 along its path direction. A driving gear 9 is meshed and connected directly above the tooth blocks 207. The driving gear 9 and the tooth blocks 207 are mutually cooperating components; A shaft rod 91 is fixedly connected to the center position of one end face of the driving gear 9, and a lubricating oil is coated at the connection between the two to reduce the friction at the connection between the two; The outer side of the shaft rod 91 is supported and fixed by a shaft seat 92, and the shaft seat 92 is detachably installed on the top of the side plate 2. A first synchronous pulley 93 is installed at the other end of the shaft rod 91. A second synchronous pulley 94 is connected to the end of another support shaft 21 not connected to the driving motor 22. The first synchronous pulley 93 and the second synchronous pulley 94 are connected by a second synchronous belt. Specifically, when the support shaft 21 rotates during operation, it synchronously drives the second synchronous pulley 94 to rotate. The rotating second synchronous pulley 94 drives the first synchronous pulley 93 to rotate through the second synchronous belt. After the first synchronous pulley 93 rotates, it drives the shaft rod 91 to rotate in the shaft seat 92, and the driving gear 9 provided at the other end of the shaft rod 91 rotates synchronously therewith and gradually engages with a number of cooperating tooth blocks 207, thereby driving the second annular plate 205 to rotate in the slot 204. The rotating second annular plate 205 drives its own filter holes 206 to rotate axially. When the agglomerated passivating agent material contacts the hole edge of the filter holes 206, the mechanical force generated by the rotation will break it up, ensuring that the material falling into the spreading disc 8 exists in a uniform fine particle state, improving the contact area and reaction efficiency between the passivating agent and the heavy metals in the soil, and further improving the metal passivation effect.
[0026] Wherein, the vertical cross-section of the second annular plate 205 passing through the axis is in a V-shaped structure with two opposite openings. At this time, when the material enters the inner side of the second annular plate 205, the material will not fall along the axis of the second annular plate 205, and antistatic coatings are applied to both the inner and outer sides of the second annular plate 205 to avoid the occurrence of electrostatic agglomeration.
[0027] The above are only embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are equally included in the patent protection scope of the present invention.
Claims
1. A device for evenly spreading a soil heavy metal passivator, comprising a base plate (1), characterized in that, The top of the base plate (1) is symmetrically welded with side plates (2), and support shafts (21) are installed at the center line positions of the two side plates (2), and the opposite surfaces of the two support shafts (21) are fixedly connected with support plates (3), and a fixed plate (4) is installed between the two support plates (3). A first shaft frame (41) is provided at the center position of the opposite surfaces of the two fixed plates (4), and a placement hole (42) is provided at the center position of the fixed plate (4) and the first shaft frame (41). The outer sides of the two first shaft frames (41) are rotatably sleeved with circular plates (5), and the two circular plates (5) are fixedly connected and sealed by a cylinder (6). The outer side of the cylinder (6) is equipped with a feeding port, and the internal chamber of the combination of the two circular plates (5) and the cylinder (6) is a storage chamber; A driving motor (22) is mounted on the outer side of one side plate (2) via a motor fixing frame, and an output end of the driving motor (22) is concentrically connected to one of the support shafts (21). A positioning bevel gear (23) is mounted on the inner side wall of any side plate (2) via a positioning plate, and the positioning bevel gear (23) and the support shaft (21) are axially aligned. A driving bevel gear shaft (24) is meshedly connected to one side of the positioning bevel gear (23), and the driving bevel gear shaft (24) is fixedly mounted on the outer side wall of the support plate (3) via a second shaft frame (25); A first driving wheel (26) is installed at the bottom of the driving bevel gear shaft (24), and the first driving wheel (26) is connected to the second driving wheel (27) through a first synchronous belt. A sealing shaft (28) is fixedly connected to the center of the top of the second driving wheel (27), and the sealing shaft (28) is installed in one of the placement holes (42). A conveying shaft (29) is installed at the center of one end face of the sealing shaft (28) facing the storage chamber, and the end of the conveying shaft (29) is exposed to the storage chamber. A spiral conveying blade (291) is installed on the outer ring of the conveying shaft (29), and the outer ring of the spiral conveying blade (291) contacts the inner wall of the placement hole (42) at another position. A placement rack (20) is symmetrically mounted on the outer wall of the side plate (2), and arc-shaped plates (201) are mounted on the side walls of the two placement racks (20) on the same side through support rods, and the center of curvature of the arc-shaped plates (201) is located on the center line of the support shaft (21). A first annular plate (202) is arranged between the inner end faces of the two arc-shaped plates (201), and the inner ring of the first annular plate (202) is flush with the inner ring of the arc-shaped plate (201). A leakage hole (203) is opened at the bottom position of the first annular plate (202) in the vertical direction, and a discharge plate (7) is arranged directly below the leakage hole (203). The side wall of the discharge plate (7) is connected and fixed to the inner side of the side plate (2) through a round rod, and a spreading plate (8) is arranged directly below the end of the discharge plate (7), and the spreading plate (8) is driven by a control motor.
2. The uniform spreading device for a soil heavy metal passivator according to claim 1, characterized in that One end of the inner wall of the cylinder (6) facing the inner wall of the sealing shaft (28) is provided with a first truncated cone cylinder (61). A hollow cylindrical block (62) is welded at the end of the short diameter of the first truncated cone cylinder (61). The inner wall of the hollow cylindrical block (62) is closely attached to the outer wall of the conveying shaft (29). A ring block (63) is fixedly installed on the inner wall of the circular plate (5) on the side facing away from the sealing shaft (28). A second truncated cone cylinder (64) is fixedly installed at the end of the ring block (63). The short diameter end of the second truncated cone cylinder (64) is in contact with but not connected to the end face of the first shaft bracket (41). The first truncated cone cylinder (61), the second truncated cone cylinder (64) and the conveying shaft (29) are coaxial.
3. The uniform spreading device for soil heavy metal passivator according to claim 2, characterized in that, Inner lining members (65) are provided on the inner side walls of the cylinder (6), the first truncated cone cylinder (61) and the second truncated cone cylinder (64). The inner lining members (65) are members made of a silicone material.
4. A uniform spreading device for soil heavy metal passivator according to claim 1, characterized in that, A slot (204) is provided at the center of the inner end face of the arc-shaped plate (201). A second annular plate (205) is inserted into the slot (204). The second annular plate (205) and the first annular plate (202) are concentrically arranged. The diameter of the second annular plate (205) is smaller than that of the first annular plate (202). Filter holes (206) are provided at equal angles along the circumferential direction on the outer side of the second annular plate (205).
5. A uniform spreading device for soil heavy metal passivator according to claim 4, characterized in that, Tooth blocks (207) are provided on the outer surface of the outer ring of the second annular plate (205) along its path direction. A driving gear (9) is meshed and connected directly above the tooth blocks (207). A shaft rod (91) is fixedly connected to the center of one end face of the driving gear (9). The outer side of the shaft rod (91) is supported and fixed by a shaft seat (92). The shaft seat (92) is detachably installed on the top of the side plate (2). A first synchronous pulley (93) is installed at the other end of the shaft rod (91). A second synchronous pulley (94) is connected to the end of the other support shaft (21) not connected to the driving motor (22). The first synchronous pulley (93) and the second synchronous pulley (94) are connected by a second synchronous belt.
6. The uniform spreading device for soil heavy metal passivator according to claim 3, characterized in that, An inclined rod (292) is fixedly installed at a position between the spiral conveying blade (291) and the hollow cylindrical block (62) on the outer side of the conveying shaft (29). Wave-shaped protrusions (293) are provided on the inner side wall of the inner lining member (65).
7. A uniform spreading device for soil heavy metal passivator according to claim 4, characterized in that, The vertical cross-section of the second annular plate (205) passing through the axis is a V-shaped structure with two openings facing each other. Anti-static coatings are applied to both the inner and outer side surfaces of the second annular plate (205).
8. A uniform spreading device for soil heavy metal passivator according to claim 1, characterized in that, Steel balls are provided at the connection between the second truncated cone cylinder (64) and the first shaft bracket (41). Lubricating grease is applied to the surfaces of the steel balls.