Environmentally friendly and frost-resistant rubber concrete mixing preparation device and method

Abstract

The invention provides an environmentally friendly antifreeze type rubber concrete mixing preparation device and method, which relates to the technical field of concrete preparation, and comprises a material storage component, which comprises six groups of storage tanks distributed in a circular array; a material guide component, which is used to sequentially receive materials guided out of the storage tanks; a stirring component, which comprises a main tank body, a first material pipe, a second material pipe, a stirring component, a dispersing component and a flip support frame, wherein the main tank body is a circular tube in the middle and tapered at both ends, and the first material pipe and the second material pipe are respectively arranged at the two ends of the main tank body, a dispersing component is installed at one end inside the main tank body, and the dispersing component is arranged close to the first material pipe, a stirring component is arranged in the middle of the inside of the main tank body, and a flip support frame capable of driving the main tank body to flip vertically is installed in the middle of the outer wall of the main tank body; the invention can quickly stir and mix various materials, stir evenly, and the production process is more green and environmentally friendly.

Description

Technical Field

[0001] The invention relates to the technical field of concrete preparation, and in particular to an environmentally friendly and frost-resistant rubber concrete mixing preparation device and method. Background Art

[0002] Rubber concrete is an innovative material based on ordinary concrete. It improves performance by evenly mixing a certain proportion of rubber particles or powder. These rubber particles usually replace the aggregate in concrete in an equal volume. The rubber particles can come from discarded rubber tires. The prepared rubber concrete has the advantages of light weight, good toughness, strong impact resistance and good durability. It has good application prospects, especially in road projects with high requirements for impact resistance and durability.

[0003] The current rubber concrete has the following difficulties in the preparation process:

[0004] 1. Due to the low density of rubber, it is easy to float during the mixing and molding process, resulting in uneven distribution, so the qualified rate of rubber concrete preparation needs to be improved;

[0005] 2. During the mixing process, a lot of solid materials accumulate at the bottom of the mixing tank, resulting in different uniformity between the upper and lower layers of the entire concrete. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an environmentally friendly and frost-resistant rubber concrete mixing preparation device and method, which solves the problems mentioned in the background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] An environmentally friendly and frost-resistant rubber concrete mixing and preparation device, comprising:

[0009] A material storage assembly, comprising six groups of storage tanks distributed in a circular array, the six groups of storage tanks storing cement, sand, gravel, rubber particles, water reducing agent solution and flushing water in sequence;

[0010] A material guide assembly, which is used to sequentially receive the materials guided out of the storage tank;

[0011] The stirring assembly comprises a main tank body, a first material pipe, a second material pipe, a stirring component, a dispersing component and a flipping support frame. The main tank body is a circular tube in the middle and tapered at both ends. The first material pipe and the second material pipe are respectively arranged at both ends of the main tank body. A dispersing component is installed at one end of the interior of the main tank body, and the dispersing component is arranged close to the first material pipe. A stirring component is arranged in the middle of the interior of the main tank body. A flipping support frame capable of driving the main tank body to flip vertically is installed in the middle of the outer wall of the main tank body. The stirring assembly comprises the following stirring steps:

[0012] In the first step, the first material pipe is facing upward, the second material pipe is facing downward and closed, the material guide component guides cement, sand, gravel and rubber particles to the main tank, the dispersion component filters and disperses the introduced dry materials, and the stirring component is in dry stirring mode for stirring;

[0013] In the second step, the second material pipe is facing upward, the first material pipe is facing downward and the dispersion component is closed, the material guide component guides the water reducer solution to the main tank body, and the stirring component is in a wet stirring mode to stir the turned material;

[0014] In the third step, the first material pipe is facing upward and the second material pipe is facing downward, the second material pipe is opened to discharge the prepared antifreeze type rubber concrete, and the stirring component stirs to accelerate the discharge speed;

[0015] In the fourth step, the material guide assembly guides flushing water, and the flushing water flushes the dispersion component and the interior of the main tank;

[0016] The material receiving assembly is used to receive concrete and flushing water and is responsible for opening the second material pipe.

[0017] Furthermore, the material guiding assembly includes a positioning frame, a material receiving elbow is rotatably installed in the middle of the top of the positioning frame, a first motor for driving the material receiving elbow to rotate is installed on the side wall of the positioning frame, a material guiding hose is installed at the bottom of the positioning frame, the top of the material guiding hose is connected to the material receiving elbow, a material guiding joint is provided at the bottom of the material guiding hose, a first driving rod is installed on the side wall of the positioning frame, and the output end of the first driving rod is connected to the material guiding joint.

[0018] Furthermore, the dispersion component includes a lower filter ring, which is fixed on the inner wall of the main tank body, and the lower filter ring is arranged on the outer wall of the lower cover body. An upper filter ring is rotatably installed on the top of the lower filter ring, and the upper filter ring is arranged on the outer wall of the upper cone cover; the upper cone cover is arranged above the lower cover body and the two are connected, the inner wall of the upper cone cover is provided with a first gear ring, the interior of the lower cover body is provided with a second motor, the output end of the second motor is provided with a first driving gear, the first driving gear is meshed and placed in the first gear ring, a lower filter hole is opened in the interior of the lower filter ring, and an upper filter hole is opened in the interior of the upper filter ring; when the upper filter hole is connected with the lower filter hole, the dispersion component is in an open state; when the upper filter hole is staggered with the lower filter hole, the dispersion component is in a closed state.

[0019] Furthermore, a dispersion shaft is rotatably installed at the inner center of the lower cover body, a second gear ring is provided on the outer wall of the dispersion shaft, a third motor is installed inside the lower cover body, a second drive gear is provided at the output end of the third motor, and the second drive gear is meshed and connected to the second gear ring; the dispersion shaft extends outward from the upper conical cover, a conical stopper is provided at the top end of the dispersion shaft, an oblique scraper rod is provided on the outer wall of the conical stopper, the oblique scraper rod is attached to the outer wall of the upper conical cover, a flat scraper plate is provided at the bottom end of the oblique scraper rod, and the flat scraper plate is attached to the surface of the upper filter ring.

[0020] Furthermore, the stirring component includes a main shaft tube, a vertical tooth plate frame is vertically slidably installed inside the main shaft tube, a heavy rod is provided at the bottom end of the vertical tooth plate frame, a heavy blocking block is provided at the bottom end of the heavy rod, both ends of the heavy blocking block are conical, and the outer wall of the main shaft tube is symmetrically provided with two rows of stirring rod groups, and the two rows of stirring rod groups are meshed and connected with the vertical tooth plate frame.

[0021] Furthermore, the stirring rod group includes a stirring plate, a positioning shaft, an outer clamping sleeve and an inner gear, the positioning shaft rotates and penetrates the main shaft tube, the inner end of the positioning shaft is provided with an inner gear, the inner gear is meshed and connected with the vertical tooth plate frame, the outer end of the positioning shaft is provided with an outer clamping sleeve, the outer clamping sleeve is rotatably connected to the stirring plate, and the side of the stirring plate is provided with a triangular bar;

[0022] In the first step, the heavy block falls down to block the second material pipe, and the triangular bars of the stirring plate face the rotation direction to reduce the dry stirring resistance;

[0023] In the second step, the heavy block falls down, the heavy rod is retracted into the main shaft tube, and the vertical tooth plate frame drives the stirring plate to rotate so that the plane of the stirring plate faces the rotation direction to ensure the wet stirring effect.

[0024] Furthermore, a connecting column is provided at the outer end of the heavy blocking block, and an annular groove is provided on the outer wall of the connecting column.

[0025] Furthermore, the material receiving assembly comprises a material receiving pipe, a discharge trough, an upper horizontal plate, a sedimentation tank and a discharge conveyor belt, a resistance column is vertically slidably installed in the middle part of the inner part of the material receiving pipe, a clamping component is provided on the top of the resistance column, and the clamping component is clamped on the annular groove of the connecting column, an upper horizontal plate is vertically provided on one side wall of the material receiving pipe, a second driving rod is provided on the bottom surface of the upper horizontal plate, a lower horizontal plate is provided on the bottom end of the second driving rod, and the bottom end of the resistance column is provided on the surface of the lower horizontal plate; a U-shaped frame is provided at the bottom end of the material receiving pipe, a switching motor is provided on the bottom surface of the U-shaped frame, and a third driving rod is provided on the bottom surface of the switching motor; a discharge trough is provided on the other side of the material receiving pipe, and the discharge trough is connected to the inside of the material receiving pipe; the sedimentation tank and the discharge conveyor belt are symmetrically arranged on both sides of the flip support frame, and the sedimentation tank is connected to the material storage assembly through a pump body.

[0026] Furthermore, the clamping component includes a fourth driving rod, a rocker arm, an L-shaped plate and a clamping half ring. Two groups of L-shaped plates are symmetrically slidably arranged on both sides of the top of the resistance column. The fourth driving rod is arranged at the inner top of the resistance column. The top of the resistance column is symmetrically hinged with a rocker arm. The outer ends of the two groups of rocker arms are respectively hinged to a group of L-shaped plates. The exposed top of the L-shaped plate is provided with a clamping half ring, and the clamping half ring is embedded in the ring groove.

[0027] A method for mixing and preparing environmentally friendly antifreeze rubber concrete, the method comprising the following steps:

[0028] S1. Add the raw materials to the material storage component. The weight ratio of the raw materials is: cement: water: sand: gravel: water reducing agent: rubber particles = 329.6: 132.3: 581.43: 1356.67: 3.3: 58.14; the rubber particles are made by cutting and crushing waste rubber tires and have a particle size of 30 meshes;

[0029] S2, start the stirring component, the material guide component puts the weighed gravel, sand and cement into the stirring component for stirring, and then adds rubber particles and continues to stir to make the materials evenly mixed;

[0030] S3. Add the water reducing agent solution into the stirring assembly, and obtain green antifreeze rubber concrete after stirring.

[0031] The present invention provides an environmentally friendly and frost-resistant rubber concrete mixing preparation device and method. Compared with the prior art, it has the following beneficial effects:

[0032] 1. The material storage components are designed to be distributed in a circular array. The rotation of the material guide components can be used to add each raw material in sequence, thereby achieving rapid material unloading;

[0033] 2. The main tank is designed to be a self-rotating structure. This design has the following effects: in the second step, the main tank rotates, so that the dry materials stirred in the first step will turn over, and the materials previously located at the bottom will now be located at the surface. In this way, the materials can be fully stirred and mixed, eliminating the problem of uneven stirring of the materials always located at the bottom; in terms of the preparation method, the solid is stirred first and then the liquid is stirred. The solid can be fully stirred, and the liquid can be added for stirring after the stirring is even, which reduces the floating of the rubber particles. At the same time, when the liquid is stirred, the tank will turn over, and the stirring is more even;

[0034] The water reducing agent solution is discharged through the second material pipe, which can be separated from the first material pipe, so that the water reducing agent solution is discharged more smoothly without being blocked by solid residual materials; after the stirring is completed, the main tank body will rotate again, and the open second material pipe is more suitable for discharging, making the discharge faster. At the same time, it also prepares for the subsequent flushing water to enter the flushing dispersion component from the first material pipe;

[0035] Since the resistances of the stirring parts in dry stirring and wet stirring are different, the resistances in dry stirring are larger and those in wet stirring are smaller. When the main tank body is turned over, the working mode of the stirring parts will be adjusted synchronously, so that the stirring parts can be in dry stirring in the first step, with smaller stirring resistance, and in wet stirring in the second step, with higher stirring efficiency.

[0036] 3. The material receiving assembly is designed to receive concrete and flushing water, which can be used after settling. At the same time, since the second material pipe is closed when it is facing downward, the material receiving assembly can also unlock the second material pipe so that the second material pipe can discharge materials normally.

[0037] 4. Select rubber particles of appropriate mesh size and mix them into concrete in proportion to obtain a green antifreeze rubber concrete, which improves the essential problems of traditional concrete such as heavy dead weight and insufficient toughness, and is convenient for construction application. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 The schematic diagram of the structure of the environmentally friendly and frost-resistant rubber concrete mixing and preparation device of the present invention is shown;

[0040] Figure 2 The schematic diagram of the structure of the material guide assembly of the present invention is shown;

[0041] Figure 3 It shows a schematic diagram of the internal cross-sectional structure of the main tank body when the first material pipe of the present invention is facing upward;

[0042] Figure 4 The overall structural diagram of the dispersion components of the present invention is shown;

[0043] Figure 5 A schematic diagram of the internal cross-sectional structure of the dispersion component of the present invention is shown;

[0044] Figure 6 It shows a schematic structural diagram of the material receiving assembly of the present invention in a pulled-down closed state;

[0045] Figure 7 Shows Figure 6 A schematic diagram of the enlarged structure at point A;

[0046] Figure 8 The schematic diagram of the structure of the stirring component of the present invention is shown;

[0047] Fig. 9 A schematic diagram of the structure of the stirring rod group of the present invention is shown;

[0048] Fig.10 It shows a schematic diagram of the internal cross-sectional structure of the main tank body when the second material pipe of the present invention is facing upward;

[0049] As shown in the figure: 1. material storage component, 11. storage tank, 2. material guide component, 21. positioning frame, 22. material connection elbow, 23. first motor, 24. material guide hose, 25. material guide joint, 26. first drive rod, 3. main tank body, 31. first material pipe, 32. second material pipe, 4. dispersion component, 41. lower filter ring, 42. lower cover body, 43. upper filter ring, 44. upper cone cover, 441. first gear ring, 45. second motor, 451. first drive gear, 46. dispersion shaft, 461. second gear ring, 47. third motor, 471. second drive gear, 48. cone stopper, 49. oblique scraper rod, 491. flat scraper, 5. stirring component, 51. main Axle tube, 52, vertical tooth plate frame, 53, heavy rod, 54, heavy blocking block, 55, connecting column, 551, ring groove, 56, stirring rod group, 561, positioning shaft, 562, internal gear, 563, outer clamping sleeve, 564, stirring plate, 565, triangular bar, 6, material receiving assembly, 61, material receiving pipe, 62, outlet groove, 63, resistance column, 64, U-shaped frame, 65, clamping part, 651, fourth drive rod, 652, rocker rod, 653, L-shaped plate, 654, clamping half ring, 66, upper horizontal plate, 661, second drive rod, 67, lower horizontal plate, 68, third drive rod, 69, switching motor, 7, flip support frame, 8, discharge conveyor belt, 9, sedimentation tank. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] In order to solve the technical problems in the background technology, the following environmentally friendly and antifreeze rubber concrete mixing and preparation device is provided:

[0052] Combination Figure 1-Figure 10 As shown, an environmentally friendly and frost-resistant rubber concrete mixing and preparing device provided by the present invention comprises a material storage assembly 1, which comprises six groups of storage tanks 11 distributed in a circular array, and the six groups of storage tanks 11 store cement, sand, gravel, rubber particles, water reducing agent solution and flushing water in sequence respectively;

[0053] The material guide assembly 2 is used to sequentially receive the materials guided out of the storage tank 11;

[0054] The stirring assembly includes a main tank body 3, a first material pipe 31, a second material pipe 32, a stirring component 5, a dispersing component 4 and a flip support frame 7. The main tank body 3 is a circular tube in the middle and tapered at both ends. The first material pipe 31 and the second material pipe 32 are respectively provided at both ends of the main tank body 3. The dispersing component 4 is installed at one end of the interior of the main tank body 3. The dispersing component 4 is arranged close to the first material pipe 31. The stirring component 5 is provided in the middle of the interior of the main tank body 3. The flip support frame 7 that can drive the main tank body 3 to flip vertically is installed in the middle of the outer wall of the main tank body 3. The stirring assembly includes the following stirring steps:

[0055] In the first step, the first material pipe 31 is facing upward, the second material pipe 32 is facing downward and closed, the material guide component 2 guides cement, sand, gravel and rubber particles to the main tank 3, the dispersion component 4 filters and disperses the introduced dry materials, and the stirring component 5 is in dry stirring mode for stirring;

[0056] In the second step, the second material pipe 32 faces upward, the first material pipe 31 faces downward, and the dispersion component 4 is closed, the material guide component 2 guides the water reducing agent solution to the main tank 3, and the stirring component 5 is in a wet stirring mode to stir the turned material;

[0057] In the third step, the first material pipe 31 is facing upwards and the second material pipe 32 is facing downwards, the second material pipe 32 is opened to discharge the prepared antifreeze type rubber concrete, and the stirring component 5 stirs to accelerate the discharge speed;

[0058] In the fourth step, the material guide assembly 2 guides out the flushing water, and the flushing water flushes the dispersion component 4 and the inside of the main tank body 3;

[0059] The material receiving assembly 6 is used to receive concrete and flushing water and is responsible for opening the second material pipe 32 .

[0060] In the above scheme:

[0061] 1. The material storage component 1 is designed to be distributed in a circular array, and the material guide component 2 can be used to rotate to realize the sequential addition of each raw material, thereby realizing rapid material discharge;

[0062] 2. The main tank 3 is designed to be a self-rotating structure. This design has the following effects:

[0063] 2.1. In the second step, the main tank body 3 rotates, so that the dry materials mixed in the first step will turn over, and the materials previously located at the bottom layer will now be located at the surface layer, so that the materials can be fully mixed and stirred, eliminating the problem of uneven mixing of the materials always located at the bottom;

[0064] 2.2. The water reducing agent solution is discharged through the second material pipe 32, which can be separated from the first material pipe 31, so that the water reducing agent solution is discharged more smoothly without being blocked by solid residual materials;

[0065] 2.3. After the stirring is completed, the main tank body 3 will rotate again, and the open second material pipe 32 is more suitable for discharging materials, making the discharging faster. At the same time, it also prepares for the subsequent flushing water to enter the flushing dispersion component 4 from the first material pipe 31;

[0066] 2.4. Since the resistances of the stirring member 5 are different in dry stirring and wet stirring, the resistance is larger in dry stirring and smaller in wet stirring. When the main tank 3 is turned over, the working mode of the stirring member 5 is adjusted synchronously, so that the stirring member 5 can be in dry stirring in the first step, with smaller stirring resistance, and in wet stirring in the second step, with higher stirring efficiency.

[0067] 3. The material receiving assembly 6 is designed to receive concrete and flushing water, which can be used after settling. At the same time, since the second material pipe 32 is closed when it is facing downward, the material receiving assembly 6 can also unlock the second material pipe 32, so that the second material pipe 32 can discharge materials normally.

[0068] 4. The dispersing component 4 can disperse the discharged solid material, screen out large-sized particles, and stir the material to speed up the feeding speed and avoid clogging of the solid material; and the large-sized particles screened out will be directly discharged in the second step when the first material pipe 31 is facing downward.

[0069] In this embodiment, the material guiding assembly 2 includes a positioning frame 21, a material receiving elbow 22 is rotatably installed in the middle of the top of the positioning frame 21, a first motor 23 for driving the material receiving elbow 22 to rotate is installed on the side wall of the positioning frame 21, a material guiding hose 24 is installed at the bottom of the positioning frame 21, the top of the material guiding hose 24 is connected to the material receiving elbow 22, a material guiding joint 25 is provided at the bottom of the material guiding hose 24, and a first driving rod 26 is installed on the side wall of the positioning frame 21, and the output end of the first driving rod 26 is connected to the material guiding joint 25.

[0070] In the above scheme: when rotating, the first motor 23 can drive the material receiving elbow 22 to rotate in sequence under each storage tank 11, and the material discharged from the storage tank 11 is discharged through the material receiving elbow 22, the material guiding hose 24 and the material guiding joint 25; when the main tank body 3 rotates, the first driving rod 26 drives the material guiding joint 25 to be lifted, and the material guiding hose 24 is retracted. After the flipping is completed, the first driving rod 26 drives the material guiding joint 25 to descend, and the material guiding joint 25 is connected to the material pipe located above.

[0071] In this embodiment, the dispersion component 4 includes a lower filter ring 41, which is fixed to the inner wall of the main tank body 3 and is arranged on the outer wall of the lower cover body 42. An upper filter ring 43 is rotatably installed on the top of the lower filter ring 41, and the upper filter ring 43 is arranged on the outer wall of the upper cone cover 44; the upper cone cover 44 is arranged above the lower cover body 42 and the two are connected, and a first gear ring 441 is provided on the inner wall of the upper cone cover 44, and a second motor 45 is installed inside the lower cover body 42, and a first driving gear 451 is installed at the output end of the second motor 45, and the first driving gear 451 is meshed and placed in the first gear ring 441, and a lower filter hole is opened inside the lower filter ring 41, and an upper filter hole is opened inside the upper filter ring 43; when the upper filter hole is connected with the lower filter hole, the dispersion component 4 is in an open state; when the upper filter hole is staggered with the lower filter hole, the dispersion component 4 is in a closed state.

[0072] In the above scheme: during the dispersion treatment, the second motor 45 drives the first drive gear 451 to rotate, the first drive gear 451 drives the first gear ring 441 to rotate and then drives the upper cone cover 44 to rotate, the upper cone cover 44 drives the upper filter ring 43 to rotate, when filtering the material, the upper filter hole of the upper filter ring 43 is correspondingly connected to the lower filter hole of the lower filter ring 41, when closing is required, the upper filter ring 43 of the upper filter ring 43 is staggered with the lower filter hole of the lower filter ring 41, so that the dispersion component 4 is blocked, and the upper cone cover 44 with a conical structure can disperse the falling material to the upper filter ring 43.

[0073] In this embodiment, a dispersion shaft 46 is rotatably installed at the inner center of the lower cover body 42, and a second gear ring 461 is provided on the outer wall of the dispersion shaft 46. A third motor 47 is installed inside the lower cover body 42, and a second drive gear 471 is provided at the output end of the third motor 47, and the second drive gear 471 is meshed and connected to the second gear ring 461; the dispersion shaft 46 extends outward from the upper cone cover 44, and a cone stopper 48 is provided at the top end of the dispersion shaft 46, and an oblique scraper rod 49 is provided on the outer wall of the cone stopper 48, and the oblique scraper rod 49 is attached to the outer wall of the upper cone cover 44, and a flat scraper plate 491 is provided at the bottom end of the oblique scraper rod 49, and the flat scraper plate 491 is attached to the surface of the upper filter ring 43.

[0074] In the above scheme: during the unloading process, the third motor 47 drives the second driving gear 471 to rotate, thereby driving the second gear ring 461 and the dispersion shaft 46 to rotate, and the dispersion shaft 46 drives the top conical stopper 48, the inclined scraper rod 49 and the flat scraper 491 to rotate, the inclined scraper rod 49 can scrape off the material attached to the side wall of the upper cone cover 44, and the flat scraper 491 can scrape the material on the upper filter ring 43 to avoid material blockage; the conical stopper 48 can disperse the falling material to prevent the material from entering the dispersion shaft 46.

[0075] In order to realize the follow-up switching mode of the stirring component 5, the following scheme is given:

[0076] In this embodiment, the stirring component 5 includes a main shaft tube 51, and a vertical tooth plate frame 52 is vertically slidably installed inside the main shaft tube 51. A weight rod 53 is provided at the bottom end of the vertical tooth plate frame 52, and a heavy blocking block 54 is provided at the bottom end of the weight rod 53. Both ends of the heavy blocking block 54 are conical. The outer wall of the main shaft tube 51 is symmetrically provided with two rows of stirring rod groups 56, and the two rows of stirring rod groups 56 are both meshed and connected with the vertical tooth plate frame 52. The stirring rod group 56 includes a stirring plate 564, a positioning shaft 561, an outer clamping sleeve 563 and an inner gear 562. The positioning shaft 561 rotates and penetrates the main shaft tube 51. The inner end of the positioning shaft 561 is provided with an inner gear 562, which is meshed and connected with the vertical tooth plate frame 52. The outer end of the positioning shaft 561 is provided with an outer clamping sleeve 563, which is rotatably connected to the stirring plate 564. The side of the stirring plate 564 is provided with a triangular bar 565; in the first step, the heavy blocking block 54 falls down to block the second material pipe 32, and the triangular bar 565 of the stirring plate 564 faces the rotation direction to reduce the dry stirring resistance; in the second step, the heavy blocking block 54 falls down, the heavy rod 53 is retracted into the main shaft tube 51, and the vertical tooth plate frame 52 drives the stirring plate 564 to rotate, so that the plane of the stirring plate 564 faces the rotation direction to ensure the wet stirring effect.

[0077] In the above scheme:

[0078] 1. The weight block is designed so that the weight rod 53 can always move downward by virtue of the gravity of the weight block. In the first step, the weight block can block the second material pipe 32 without blocking it separately. In the second step, since the second material pipe 32 is facing upward, under the action of the weight block, the weight rod 53 is completely retracted into the spindle tube 51, and the weight rod 53 drives the vertical tooth plate frame 52 to move inward, and the vertical tooth plate frame 52 drives each group of internal gears 562 to rotate, thereby driving the positioning shaft 561, the outer clamping sleeve 563, and the stirring plate 564 to rotate, thereby changing the direction of the triangular bar block 565;

[0079] When the triangular bar block 565 faces the rotation direction, it is a dry stirring mode. At this time, the triangle of the triangular bar block 565 is subjected to less resistance, and the stirring is smoother;

[0080] When the plane of the stirring plate 564 faces the rotation direction, it is a wet stirring mode, at which time the stirring efficiency is higher.

[0081] 2. The stirring plate 564 will be in a tilted downward state under the action of its own weight. The tilted stirring plate 564 can increase the stirring coverage of the stirring plate 564;

[0082] In this embodiment, a connecting column 55 is provided at the outer end of the heavy block 54, and an annular groove 551 is provided on the outer wall of the connecting column 55. The setting of the connecting column 55 facilitates docking with the material receiving assembly 6 to improve the sealing performance and unlock the material.

[0083] In this embodiment, the material receiving assembly 6 includes a material receiving pipe 61, a guide trough 62, an upper horizontal plate 66, a sedimentation tank and a material discharging conveyor belt. A resisting column 63 is vertically slidably installed in the middle of the inner part of the material receiving pipe 61. A clamping component 65 is provided on the top of the resisting column 63. The clamping component 65 is clamped on the annular groove 551 of the connecting column 55. An upper horizontal plate 66 is vertically provided on one side wall of the material receiving pipe 61. A second driving rod 661 is provided on the bottom surface of the upper horizontal plate 66. The bottom of the second driving rod A lower horizontal plate 67 is provided at the end, and the bottom end of the abutment column 63 is provided on the surface of the lower horizontal plate 67; a U-shaped frame 64 is provided at the bottom end of the material receiving pipe 61, a switching motor 69 is provided on the bottom surface of the U-shaped frame, and a third driving rod 68 is provided on the bottom surface of the switching motor 69; a guide groove 62 is provided on the other side of the material receiving pipe 61, and the guide groove 62 is connected to the inside of the material receiving pipe 61; the sedimentation tank 9 and the discharge conveyor belt 8 are symmetrically arranged on both sides of the flip support frame 7, and the sedimentation tank is connected to the storage assembly 1 through a pump body.

[0084] In the above scheme: the switching motor 69 can drive the upper receiving pipe 61 to rotate, when receiving concrete, the outlet trough 62 faces the discharging conveyor belt, and when receiving flushing water, the outlet trough 62 faces the sedimentation tank;

[0085] In the first step, in order to improve the sealing performance of the weight block to the second material pipe 32, the third driving rod 68 drives the material receiving pipe 61 to dock with the second material pipe 32, the clamping component 65 docks with the connecting column 55, and the second driving rod pulls down the clamping component 65, so that the weight block contacts the second material pipe 32 tightly and firmly;

[0086] When unloading, the second driving rod drives the abutment column 63 to move upward, and the abutment column 63 pushes the weight block to move upward through the clamping component 65, so that the second material pipe 32 opens to unload;

[0087] After the flushing water is discharged from the sedimentation tank, it is pumped up to a storage tank 11 to achieve the recycling of the flushing water.

[0088] In this embodiment, the clamping component 65 includes a fourth driving rod 651, a rocker rod 652, an L-shaped plate 653 and a clamping half ring 654. Two groups of L-shaped plates 653 are symmetrically slidably arranged on both sides of the top of the resistance column 63. The fourth driving rod 651 is arranged at the inner top of the resistance column 63. The top of the resistance column 63 is symmetrically hinged with a rocker rod 652. The outer ends of the two groups of rocker rods 652 are respectively hinged to a group of L-shaped plates 653. The exposed top of the L-shaped plate 653 is provided with a clamping half ring 654, and the clamping half ring 654 is embedded in the annular groove 551.

[0089] In the above scheme: when the fourth driving rod 651 is extended, it drives the two sets of rocker rods 652 to expand outward, and the rocker rods 652 drive the L-shaped plate 653 to move outward. When the fourth driving rod 651 is retracted, it drives the two sets of rocker rods 652 to retract inward, and then drives the L-shaped plate 653 to move inward, and the clamping half ring 654 can be clamped and embedded in the annular groove 551.

[0090] A method for mixing and preparing environmentally friendly antifreeze rubber concrete, the method comprising the following steps:

[0091] S1. Add the raw materials to the material storage component. The weight ratio of the raw materials is: cement: water: sand: gravel: water reducing agent: rubber particles = 329.6: 132.3: 581.43: 1356.67: 3.3: 58.14; the rubber particles are made by cutting and crushing waste rubber tires and have a particle size of 30 meshes;

[0092] S2, start the stirring component, the material guide component puts the weighed gravel, sand and cement into the stirring component for stirring, and then adds rubber particles and continues to stir to make the materials evenly mixed;

[0093] S3. Add the water reducing agent solution into the stirring assembly, and obtain green antifreeze rubber concrete after stirring.

[0094] As an embodiment: the cement is selected from ordinary Portland cement of grade P.O42.5.

[0095] As an example: the sand is natural river sand, with a fineness modulus of 2.8 and an apparent density of 2520 kg / m 3 , bulk density is 1640kg / m 3 .

[0096] As an example: the crushed stone particle size is 5-16 mm and the apparent density is 2625 kg / m 3 , bulk density is 1665kg / m 3 .

[0097] As an embodiment: the water reducing agent is HPWR high performance water reducing agent, and the water reducing rate is 37%.

[0098] As an example: the rubber particles have a particle size of 30 mesh and an apparent density of 750 kg / m 3 .

[0099] Based on the above preparation method, the following test examples were carried out:

[0100] Example 1: Green antifreeze rubber concrete with a 10-mesh rubber particle dosage of 20% is prepared, and the mass proportion of each raw material is: cement: water: sand: crushed stone: water reducer: rubber particles = 329.6: 132.3: 581.43: 1356.67: 3.3: 58.14.

[0101] Example 2: Green antifreeze rubber concrete with a 20-mesh rubber particle dosage of 20% is prepared, and the mass proportion of each raw material is: cement: water: sand: crushed stone: water reducer: rubber particles = 329.6: 132.3: 581.43: 1356.67: 3.3: 58.14.

[0102] Example 3: Green antifreeze rubber concrete with a 30-mesh rubber particle dosage of 20% is prepared, and the mass proportion of each raw material is: cement: water: sand: crushed stone: water reducer: rubber particles = 329.6: 132.3: 581.43: 1356.67: 3.3: 58.14.

[0103] For the compressive strength test, a 100mm×100mm×100mm cubic specimen was used. After curing for 24 hours under a standard environment, it was demolded and then cured for 28 days in a saturated Ca(OH)2 solution at room temperature of 20±2℃. The test block was then subjected to a freeze-thaw cycle using the quick freezing method. Each freeze-thaw cycle was a cycle of 25 times. Each freeze-thaw cycle lasted for 4 hours, with rapid freezing for 2.5 hours, followed by rapid thawing for 1.5 hours. The temperature of the low-temperature freezing equipment was set to -20℃. After the freeze-thaw cycle, the specimen was taken out, dried naturally in dry air, and its surface was polished flat. The cubic specimen was placed on the test machine stand, then geometrically aligned, loaded at the specified speed until it was destroyed, and its compressive strength was measured. The test results are shown in Table 1:

[0104] Table 1 Compressive strength of specimens after different freeze-thaw cycles

[0105]

[0106] Experimental conclusion:

[0107] By conducting compressive strength tests on ordinary concrete and the green antifreeze rubber concrete obtained by the present invention, the test results show that the antifreeze performance of the green antifreeze rubber concrete obtained by the present invention is significantly improved. Among the three rubber particle sizes, 30 mesh rubber has the least effect on the reduction of concrete strength. When subjected to different numbers of freeze-thaw cycles, the strength decline trend of the concrete group with rubber added is significantly less than that of ordinary concrete. Therefore, adding rubber particles can improve the antifreeze property of concrete.

[0108] For the splitting tensile strength test, a 100mm×100mm×100mm cubic specimen was used. After curing for 24 hours under standard conditions, it was demolded and then cured for 28 days in a saturated Ca(OH)2 solution at room temperature of 20±2℃. Then, the test block was subjected to freeze-thaw cycles using the quick freezing method. Each freeze-thaw cycle was a cycle of 25 times. Each freeze-thaw cycle lasted for 4 hours, with rapid freezing for 2.5 hours, and then rapid thawing for 1.5 hours. The temperature of the low-temperature freezing equipment was set to -20℃. After the freeze-thaw cycle, the specimen was taken out, dried naturally in dry air, and its surface was polished flat. Place the cubic specimen on the lower half of the fixture, and then place the other half of the fixture on the specimen. Slowly lower the upper pressure plate of the press, and make fine adjustments to allow the upper surface of the fixture to contact the upper pressure plate to ensure uniform contact. Continuously and evenly apply load at the specified speed until it is destroyed, and measure its tensile strength. The test results are shown in Table 2:

[0109] Table 2 Splitting tensile strength of specimens after different freeze-thaw cycles

[0110]

[0111] Experimental conclusion:

[0112] By conducting splitting tensile strength tests on ordinary concrete and the green antifreeze rubber concrete obtained by the present invention, the test results show that the antifreeze performance of the green antifreeze rubber concrete obtained by the present invention is significantly improved. During the freeze-thaw cycle, the addition of rubber slows down the rate of decrease in splitting tensile strength, mainly because on the one hand, as an elastic material, rubber can slow down the stress of concrete when the concrete test block is stressed, and on the other hand, the addition of rubber can introduce more bubbles into the concrete, thereby increasing the antifreeze performance of the concrete, reducing the internal damage of the concrete after freeze-thaw, and thus slowing down the rate of decrease in splitting tensile strength. Therefore, adding rubber particles can improve the frost resistance of concrete.

[0113] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0114] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An environmentally friendly and frost-resistant rubber concrete mixing and preparation device, characterized in that: include: A material storage assembly, comprising six groups of storage tanks distributed in a circular array, the six groups of storage tanks storing cement, sand, gravel, rubber particles, water reducing agent solution and flushing water in sequence; A material guide assembly, which is used to sequentially receive the materials guided out of the storage tank; The stirring assembly comprises a main tank body, a first material pipe, a second material pipe, a stirring component, a dispersing component and a flipping support frame. The main tank body is a circular tube in the middle and tapered at both ends. The first material pipe and the second material pipe are respectively arranged at both ends of the main tank body. A dispersing component is installed at one end of the interior of the main tank body, and the dispersing component is arranged close to the first material pipe. A stirring component is arranged in the middle of the interior of the main tank body. A flipping support frame capable of driving the main tank body to flip vertically is installed in the middle of the outer wall of the main tank body. The stirring assembly comprises the following stirring steps: In the first step, the first material pipe is facing upward, the second material pipe is facing downward and closed, the material guide component guides cement, sand, gravel and rubber particles to the main tank, the dispersion component filters and disperses the introduced dry materials, and the stirring component is in dry stirring mode for stirring; In the second step, the second material pipe is facing upward, the first material pipe is facing downward and the dispersion component is closed, the material guide component guides the water reducer solution to the main tank body, and the stirring component is in a wet stirring mode to stir the turned material; In the third step, the first material pipe is facing upward and the second material pipe is facing downward, the second material pipe is opened to discharge the prepared antifreeze type rubber concrete, and the stirring component stirs to accelerate the discharge speed; In the fourth step, the material guide assembly guides flushing water, and the flushing water flushes the dispersion component and the interior of the main tank; The material receiving assembly is used to receive concrete and flushing water and is responsible for opening the second material pipe.

2. The environmentally friendly and frost-resistant rubber concrete mixing and preparing device according to claim 1 is characterized by: The material guiding assembly comprises a positioning frame, a material receiving elbow is rotatably installed in the middle of the top of the positioning frame, a first motor for driving the material receiving elbow to rotate is installed on the side wall of the positioning frame, a material guiding hose is installed on the bottom of the positioning frame, the top of the material guiding hose is connected to the material receiving elbow, a material guiding joint is provided at the bottom of the material guiding hose, a first driving rod is installed on the side wall of the positioning frame, and the output end of the first driving rod is connected to the material guiding joint.

3. The environmentally friendly and frost-resistant rubber concrete mixing and preparing device according to claim 2 is characterized in that: The dispersion component includes a lower filter ring, which is fixed on the inner wall of the main tank body and arranged on the outer wall of the lower cover body. An upper filter ring is rotatably installed on the top of the lower filter ring, and the upper filter ring is arranged on the outer wall of the upper cone cover; the upper cone cover is arranged above the lower cover body and the two are connected, a first gear ring is arranged on the inner wall of the upper cone cover, a second motor is installed inside the lower cover body, a first driving gear is installed on the output end of the second motor, and the first driving gear is meshed and placed in the first gear ring, a lower filter hole is opened inside the lower filter ring, and an upper filter hole is opened inside the upper filter ring; when the upper filter hole is connected with the lower filter hole, the dispersion component is in an open state; when the upper filter hole is staggered with the lower filter hole, the dispersion component is in a closed state.

4. The environmentally friendly and frost-resistant rubber concrete mixing and preparing device according to claim 3 is characterized by: A dispersion shaft is rotatably installed at the inner center of the lower cover body, a second gear ring is provided on the outer wall of the dispersion shaft, a third motor is installed inside the lower cover body, a second drive gear is provided at the output end of the third motor, and the second drive gear is meshed and connected to the second gear ring; the dispersion shaft extends outward from the upper cone cover, a cone stopper is provided at the top end of the dispersion shaft, an oblique scraper rod is provided on the outer wall of the cone stopper, the oblique scraper rod is attached to the outer wall of the upper cone cover, a flat scraper plate is provided at the bottom end of the oblique scraper rod, and the flat scraper plate is attached to the surface of the upper filter ring.

5. The environmentally friendly and frost-resistant rubber concrete mixing and preparing device according to claim 4 is characterized by: The stirring component includes a main shaft tube, a vertical tooth plate frame is vertically slidably installed inside the main shaft tube, a heavy rod is provided at the bottom end of the vertical tooth plate frame, a heavy blocking block is provided at the bottom end of the heavy rod, both ends of the heavy blocking block are conical, and the outer wall of the main shaft tube is symmetrically provided with two rows of stirring rod groups, and the two rows of stirring rod groups are meshed and connected with the vertical tooth plate frame.

6. The environmentally friendly and frost-resistant rubber concrete mixing and preparing device according to claim 5 is characterized by: The stirring rod group includes a stirring plate, a positioning shaft, an outer clamping sleeve and an inner gear. The positioning shaft rotates and penetrates the main shaft tube. The inner end of the positioning shaft is provided with an inner gear, which is meshed and connected with the vertical tooth plate frame. The outer end of the positioning shaft is provided with an outer clamping sleeve, which is rotatably connected to the stirring plate. The side of the stirring plate is provided with a triangular bar. In the first step, the heavy block falls down to block the second material pipe, and the triangular bars of the stirring plate face the rotation direction to reduce the dry stirring resistance; In the second step, the heavy block falls down, the heavy rod is retracted into the main shaft tube, and the vertical tooth plate frame drives the stirring plate to rotate so that the plane of the stirring plate faces the rotation direction to ensure the wet stirring effect.

7. The environmentally friendly and frost-resistant rubber concrete mixing and preparing device according to claim 6 is characterized by: A connecting column is arranged at the outer end of the heavy blocking block, and an annular groove is arranged on the outer wall of the connecting column.

8. The environmentally friendly and frost-resistant rubber concrete mixing and preparing device according to claim 7 is characterized by: The material receiving assembly includes a material receiving pipe, a guide trough, an upper cross plate, a sedimentation tank and a discharge conveyor belt. A resistance column is vertically slidably installed in the middle of the inner part of the material receiving pipe, and a clamping component is provided on the top of the resistance column, and the clamping component is clamped on the annular groove of the connecting column. An upper cross plate is vertically provided on one side wall of the material receiving pipe, and a second driving rod is provided on the bottom surface of the upper cross plate. A lower cross plate is provided at the bottom end of the second driving rod, and the bottom end of the resistance column is arranged on the surface of the lower cross plate; a U-shaped frame is provided at the bottom end of the material receiving pipe, a switching motor is provided on the bottom surface of the U-shaped frame, and a third driving rod is provided on the bottom surface of the switching motor; a guide trough is provided on the other side of the material receiving pipe, and the guide trough is connected to the inside of the material receiving pipe; the sedimentation tank and the discharge conveyor belt are symmetrically arranged on both sides of the flip support frame, and the sedimentation tank is connected to the material storage assembly through a pump body.

9. The environmentally friendly and frost-resistant rubber concrete mixing and preparing device according to claim 8, characterized in that: The clamping component includes a fourth driving rod, a rocker arm, an L-shaped plate and a clamping half ring. Two groups of L-shaped plates are symmetrically slidably arranged on both sides of the top of the abutment column. The fourth driving rod is arranged at the inner top of the abutment column. The top of the abutment column is symmetrically hinged with a rocker arm. The outer ends of the two groups of rocker arms are respectively hinged to a group of L-shaped plates. The exposed top of the L-shaped plate is provided with a clamping half ring, and the clamping half ring is embedded in the ring groove.

10. A method for mixing and preparing environmentally friendly antifreeze rubber concrete, characterized in that: The environmentally friendly and frost-resistant rubber concrete mixing and preparation device according to claim 1 is used; the preparation method comprises the following steps: S1. Add the raw materials to the material storage component. The weight ratio of the raw materials is: cement: water: sand: gravel: water reducer: rubber particles = 329.6: 132.3: 581.43: 1356.67: 3.3: 58.14; the rubber particles are made by cutting and crushing waste rubber tires and have a particle size of 30 meshes; S2, start the stirring component, the material guide component puts the weighed gravel, sand and cement into the stirring component for stirring, and then adds rubber particles and continues to stir to make the materials evenly mixed; S3. Add the water reducing agent solution into the stirring assembly, and obtain green antifreeze rubber concrete after stirring.

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