Machine-made sand concrete proportioning device and concrete preparation method

Abstract

The invention discloses a machine-made sand concrete proportioning device and a concrete preparation method, and belongs to the technical field of concrete processing. Comprising a supporting table and a stirring tank, the stirring tank is arranged on the supporting table, a driving assembly used for driving the stirring tank to rotate is arranged on the supporting table, the stirring tank comprises a tank body, a plurality of water storage tanks are arranged on the outer wall of the tank body, and conical round shells and round sliding rails are arranged at the two ends of the tank body; an inner groove is formed in the position, corresponding to the circular sliding rail, of the inner wall of the conical circular shell, a water spraying hole connected with the water storage tank is formed in the inner wall of the inner groove, and a magnetic ring is arranged in the inner groove in a sliding mode. According to the stirring device, water flow can be continuously sprayed into mixed raw materials in the stirring process of the stirring tank, so that the mixed raw materials and the added water flow are mixed more uniformly. And in the rotary stirring process of the stirring tank, the water spraying holes formed in the inner grooves spray water outwards.

Description

Technical Field

[0001] The invention relates to a machine-made sand concrete proportioning device and a concrete preparation method, and belongs to the technical field of concrete processing. Background Art

[0002] Machine-made sand is a kind of fine granular stone formed by crushing stones. It is often used to replace river sand in the production of concrete. Concrete is a common raw material in construction projects and infrastructure construction. The traditional river sand concrete will have a serious impact on the surrounding natural ecological environment. Machine-made sand is a kind of artificial sand and a medium-coarse sand. Applying machine-made sand to concrete preparation can help improve the stability, strength, durability, and workability of concrete.

[0003] Concrete production requires adding the required raw materials into a mixing tank, and then controlling the rotation of the mixing tank to mix the various raw materials into concrete. During the rotation of the mixing tank, in order to maintain an accurate raw material ratio, water needs to be added to the mixing tank for mixing. Since the mixing tank can only be filled with water from the end, the added water cannot be in contact with most of the raw materials in a timely and uniform manner. Continuous stirring is required to fully mix the water and raw materials, which greatly prolongs the mixing time of the concrete. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a machine-made sand concrete proportioning device and a concrete preparation method, which solves the problem in the prior art that concrete cannot be quickly and fully contacted with raw materials during the process of adding water.

[0005] The technical problem to be solved by the present invention is achieved by adopting the following technical scheme: a machine-made sand concrete proportioning device comprises a support platform,

[0006] The stirring tank is obliquely arranged on the support platform, and a driving assembly for driving the stirring tank to rotate is arranged on the support platform. The stirring tank comprises a tank body, and a plurality of water storage tanks are arranged on the outer wall of the tank body. Conical round shells are arranged at both ends of the tank body.

[0007] A circular slide rail is arranged on the outer wall of the conical shell, an inner groove is arranged on the inner wall of the conical shell corresponding to the position of the circular slide rail, and a water spray hole connected to the water storage tank is arranged on the inner wall of the inner groove.

[0008] The magnetic ring is slidably disposed in the inner groove, and the magnetic ring is in an incomplete circular shape, and the arc between the two ends is less than half of the arc of the entire magnetic ring.

[0009] A pair of arc supports with the same taper as the conical shell are respectively arranged at both ends of the support platform, the inner wall surface of the arc support is provided with a slide groove, the slide groove is slidably engaged with the circular slide rail, and a circular magnetic block is fixedly arranged on the inner wall surface of the slide groove.

[0010] By adopting the above technical solution, water can be continuously sprayed into the mixed raw materials during the stirring process of the mixing tank, so that the mixed raw materials and the added water are mixed more evenly. During the rotating stirring process of the mixing tank, the water spray hole arranged in the inner groove sprays water outward.

[0011] Since a magnetic ring is arranged in the inner groove, and the magnetic ring and the circular magnetic block arranged in the slide groove attract each other, the magnetic ring always remains at the bottom of the conical shell when the conical shell rotates with the mixing tank, thereby preventing cement sand from entering the inner groove and affecting the relative sliding of the magnetic ring and the inner groove.

[0012] The magnetic ring setting makes the water flow always spray out from the top, so that the water flow spreads over a larger range after spraying and can contact the raw materials more evenly.

[0013] When the raw materials are put into the stirring chamber through the feeding platform, the water spray holes arranged on the inner groove continuously spray water outward, which can adhere to a large number of raised fine particles and reduce dust generated during the raw material feeding process.

[0014] The present invention is further configured as follows: a discharging platform and a feeding platform are respectively provided at the left and right ends of the support platform, and a second driver is provided on the discharging platform.

[0015] By adopting the above technical solution, the setting of the feeding platform and the discharging platform can realize the feeding and discharging more conveniently. The machine-made sand and cement can be accurately fed into the inner cavity of the mixing tank through the feeding platform for mixing. The discharging platform can guide the discharged molded concrete and can quickly transport the discharged concrete to the designated location.

[0016] The present invention is further configured as follows: the driving assembly includes a driver 1, the driver 1 is connected to a driving gear via a rotating shaft, the driving gear is meshedly connected to an outer ring gear, and the outer ring gear is fixedly sleeved on the outer wall of the tank body.

[0017] By adopting the above technical solution, the design of the drive assembly is compact and the components are closely matched, which not only reduces the required space but also improves the integration of the entire system. The structure of the drive assembly is relatively simple, and the components are easy to disassemble and replace. When a component fails or needs maintenance, it can be quickly replaced or repaired, reducing maintenance costs and time costs. At the same time, due to the use of standardized components such as gears and shafts, the procurement and replacement of these components are also more convenient and economical.

[0018] The present invention is further configured as follows: a pair of baffles are arranged on the outer wall surface of the tank body, and the outer ring gear is arranged between the two baffles.

[0019] By adopting the above technical solution and setting the baffle, the driving gear and the outer ring gear can be confined to the same rotation plane, so that the driving gear and the outer ring gear are meshed for transmission and a relatively stable transmission state can be maintained without tooth disengagement.

[0020] The present invention is further configured as follows: the arc support is semicircular, a support plate is hingedly connected to the bottom of the arc support, and the support plate is fixedly connected to the support platform.

[0021] By adopting the above technical solution, the semicircular arc support can more conveniently install the mixing tank, and the arc support is installed on the support platform through the support plate at the bottom. The support plate and the arc support are connected in a hinged manner, so that when the mixing tank is installed with the arc support, the outer wall surface of the conical shell and the inner wall surface of the arc support can be quickly fitted to each other, and the arc support can automatically rotate to adjust the fitting angle with the conical shell during the fitting process.

[0022] The present invention is further configured as follows: a rotating shaft support is provided in the inner cavity of the stirring tank, a driving shaft is provided through the rotating shaft support, the driving shaft is formed by splicing two sections of shafts that can rotate independently, a spiral blade is provided on the driving shaft, and the obliquely downward end of the driving shaft extends out of the stirring tank and is connected to the second driver, and is driven to rotate by the second driver.

[0023] By adopting the above technical solution, the drive shaft is installed through the rotating shaft bracket and the second driver, and the rotation of the drive shaft is controlled by the driver. The rotation of the spiral blade and the rotation of the mixing tank are separated from each other, so that during the mixing process, by controlling the mixing tank and the spiral blade to rotate relative to each other at the same time, faster and more sufficient mixing can be achieved, so that the concrete in the inner cavity of the mixing tank is mixed more evenly.

[0024] The present invention is further configured as follows: a feed hopper is connected to the upper end of the feed table, a driver three is arranged on the feed hopper, an obliquely upward end of the drive shaft is connected to the driver three, and a discharge chute is connected to the lower end of the feed hopper.

[0025] By adopting the above technical solution, production efficiency can be significantly improved. The design of the feed hopper allows the raw materials to enter the next processing link continuously and stably, avoiding production stagnation caused by insufficient or interrupted feeding.

[0026] The present invention is further configured as follows: the spiral blade arranged in the middle of the driving shaft has the largest diameter, the diameter of the spiral blades extending from the center of the driving shaft to both ends gradually decreases, and the spiral blades symmetrically arranged on the two sections of the driving shaft body with the center of the driving shaft have opposite spiral rotation directions.

[0027] By adopting the above technical solution, the diameter of the spiral blade gradually decreases from the middle to the two ends, and the spiral blade in the middle of the drive shaft has the largest diameter, so that the spiral blade fits better with the inner cavity of the mixing tank. The opposite spiral rotation direction can make the concrete concentrate in the center of the mixing chamber by controlling the single-direction rotation of the drive shaft during the mixing process, so as to facilitate the full mixing of all raw materials.

[0028] The method for preparing machine-made sand concrete comprises the following steps:

[0029] Step 1: adding machine-made sand and cement in a certain ratio into the inner cavity of the mixing tank through the opening of the conical round shell connected to the upper end of the tank body, and rotating the spiral blade during the adding process to gather the added raw materials at the center of the inner cavity of the mixing tank;

[0030] Step 2: The stirring tank is driven to rotate by the driving component, and water is supplied to the water spray hole through the water storage tank. The water spray hole continuously sprays water into the stirring chamber and adds it to the raw materials. At the same time, the spiral blade is driven to rotate forward and reverse to stir and mix the raw materials.

[0031] Step three, after the raw materials are evenly mixed to form concrete, the spiral blades are controlled to rotate continuously in one direction so that the formed concrete is continuously discharged from the opening of the conical round shell connected to the lower end of the tank body.

[0032] By adopting the above technical solution, through the rotation of the spiral blades, especially the convergence effect when adding raw materials, and the subsequent forward and reverse rotation stirring, it can be ensured that the machine-made sand, cement and other raw materials are fully mixed in the mixing tank. This dynamic mixing method is more efficient than static mixing and helps to improve the uniformity and quality of concrete. The water spray hole continuously sprays water into the mixing chamber during the mixing process. This method can better ensure the uniform wetting of the raw materials than adding a large amount of water at one time. At the same time, it also effectively controls the amount of water, avoids unnecessary waste, and improves the economy of production. The entire mixing process, including the addition of raw materials, mixing, and the discharge of concrete, is automatically completed by mechanical devices, reducing manual intervention and improving production efficiency and safety.

[0033] The beneficial effects of the present invention are: stirring water can be added continuously and evenly during the stirring process for mixing, which can ensure uniform wetting of the mixed raw materials compared to adding a large amount of water at one time, thereby reducing the stirring time of the concrete and making it faster. At the same time, by setting two threaded blades with opposite spiral directions, the concrete in the mixing tank can be concentrated in the middle part of the inner cavity of the mixing tank for mixing. When discharging and unloading are required, discharging and unloading can be carried out simultaneously by controlling the rotation of the two sections of the drive shaft respectively, thereby speeding up the time for preparing concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0035] Figure 2 is a cross-sectional view of the present invention;

[0036] Figure 3 It is a schematic diagram of the three-dimensional structure of the arc support of the present invention;

[0037] Figure 4 It is a schematic diagram of the three-dimensional structure of the stirring tank of the present invention;

[0038] Figure 5 It is a schematic diagram of the three-dimensional structure of the conical round shell of the present invention.

[0039] In the figure: 1. support platform; 2. mixing tank; 201. tank body; 202. water storage tank; 203. conical shell; 204. circular slide rail; 205. magnetic ring; 2031. inner groove; 3. drive assembly; 301. driver one; 302. rotating shaft; 303. driving gear; 304. outer ring gear; 305. baffle; 4. arc support; 401. slide groove; 402. circular magnetic block; 5. discharge platform; 6. feed platform; 7. driver two; 8. support plate; 9. rotating shaft support; 10. driving shaft; 11. spiral blade; 12. connector; 13. driver three; 14. feed hopper. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0041] like Figure 1 As shown, the machine-made sand concrete proportioning device comprises a support platform 1, the upper surface of the support platform 1 is an inclined surface, the downwardly inclined end is connected to a discharging platform 5, and the upwardly inclined end is connected to a feeding platform 6.

[0042] The stirring tank 2 is obliquely arranged on the supporting platform 1 . The stirring tank 2 comprises a tank body 201 . A plurality of water storage tanks 202 are arranged on the outer wall of the tank body 201 . Conical round shells 203 are arranged at both ends of the tank body 201 .

[0043] A connector 12 is provided on the end surface of the conical shell 203 connected to the tank body 201 , and the connector 12 is connected to the water supply channel on the tank body 201 .

[0044] Each water storage tank 202 is connected to a water spray hole. Water is supplied to the water spray hole through the water storage tank 202, so that water can be continuously sprayed into the inner cavity of the mixing tank 2 through the water spray hole during the concrete mixing process, thereby greatly increasing the contact area between the mixing raw materials and water.

[0045] Compared with adding a large amount of water at a time and stirring directly, continuous water spraying during the stirring process can make the raw materials and water contact more fully, so that the concrete can be formed faster and the concrete can be continuously kept evenly moist.

[0046] The circular slide rail 204 is arranged on the outer wall of the conical shell 203. The inner wall of the conical shell 203 is arranged with an inner groove 2031 corresponding to the position of the circular slide rail 204. The water spray hole is arranged on the inner wall of the inner groove 2031. The magnetic ring 205 is slidably arranged in the inner groove 2031. The magnetic ring 205 is in an incomplete circular shape, and the arc between the two ends is less than half of the arc of the entire magnetic ring 205. During the rotation of the mixing tank 2, the magnetic ring 205 in the inner groove 2031 is attracted by the circular magnetic block 402 arranged in the slide groove 401, so that the magnetic ring 205 is always kept at the bottom position of the inner groove 2031. Therefore, the bottom position of the inner groove 2031 is always closed by the magnetic ring 205. In the inner groove 2031 whose upper part is not closed by the magnetic ring 205, the water spray hole continuously sprays water into the inner cavity of the mixing tank 2.

[0047] The magnetic ring 205 is arranged so that the water flow is always sprayed out from the top, so that the water flow spreads over a larger range after spraying and can contact the raw materials more evenly.

[0048] As the mixing tank 2 continues to rotate, the relative positions of the inner grooves 2031 are constantly switched, so that the water in all water storage tanks 202 can be sprayed out through the spray holes. Each spray hole is connected to a water storage tank 202 separately to prevent the situation where the spray hole is blocked and water cannot be sprayed through other spray holes.

[0049] A pair of arc supports 4 with the same taper as the conical shell 203 are respectively arranged at both ends of the support platform 1. The inner wall of the arc support 4 is provided with a slide groove 401, which is slidably engaged with the circular slide rail 204, and a circular magnetic block 402 is fixedly provided on the inner wall of the slide groove 401.

[0050] When raw materials are added into the stirring chamber through the feeding platform 6, the water spray holes arranged on the inner groove 2031 continuously spray water outward, which can adhere to a large number of raised fine particles and reduce dust generated during the raw material feeding process.

[0051] In this embodiment, the arc support 4 is a semicircular conical truncated cone structure made of non-magnetic material. The circular magnetic block 402 in the arc support 4 can attract the magnetic ring 205, so that the magnetic ring 205 always remains at the bottom of the inner groove 2031 during the rotation of the mixing tank 2, thereby preventing the mud and sand at the bottom from entering the inner groove 2031 and affecting the normal operation of the mixing tank 2.

[0052] The left and right ends of the support platform 1 are respectively provided with a discharging platform 5 and a feeding platform 6. The setting of the feeding platform 6 and the discharging platform 5 can realize the feeding and discharging more conveniently. The machine-made sand and cement can be accurately fed into the inner cavity of the mixing tank 2 through the feeding platform 6 for mixing. The discharging platform 5 can guide the discharged molded concrete and can quickly transport the discharged concrete to the designated location.

[0053] The support platform 1 is provided with a driving assembly 3 for driving the stirring tank 2 to rotate. The driving assembly 3 includes a driver 301. In the present embodiment, the driver 301 is specifically a servo motor. The driver 301 is connected to a driving gear 303 via a rotating shaft 302. The driving gear 303 is meshedly connected with an outer ring gear 304. The outer ring gear 304 is fixedly sleeved on the outer wall surface of the tank body 201. The entire stirring tank 2 is driven by the driving assembly 3. The driver 301 can rotate forward and reverse, thereby controlling the tank body 201 of the stirring tank 2 to rotate forward and reverse. The forward and reverse rotation allows the mixed raw materials to be concentrated in large quantities at the center of the inner cavity of the stirring tank 2 for mixing, which speeds up the mixing speed and makes the mixing of the raw materials more concentrated and more thorough.

[0054] A pair of baffles 305 are arranged on the outer wall of the tank body 201, and the outer ring gear 304 is arranged between the two baffles 305. By setting the baffles 305, the driving gear 303 and the outer ring gear 304 can be limited to the same rotation plane, so that the driving gear 303 and the outer ring gear 304 are meshed and transmitted, and a relatively stable transmission state can be maintained without the situation of tooth disengagement.

[0055] The arc support 4 is semicircular, and a support plate 8 is hinged at the bottom of the arc support 4, and the support plate 8 is fixedly connected to the support platform 1. The semicircular arc support 4 can more conveniently install the mixing tank 2, and the arc support 4 is installed on the support platform 1 through the support plate 8 at the bottom. The support plate 8 and the arc support 4 are connected in a hinged manner, so that when the mixing tank 2 is installed with the arc support 4, the outer wall surface of the conical shell 203 and the inner wall surface of the arc support 4 can be quickly fitted to each other, and the arc support 4 can automatically rotate to adjust the fitting angle with the conical shell 203 during the fitting process.

[0056] The inner cavity of the mixing tank 2 is provided with a rotating shaft 302 support, and a driving shaft 10 is provided through the rotating shaft 302 support. The driving shaft 10 is composed of two sections of shafts that can rotate independently. A spiral blade 11 is provided on the driving shaft 10. The obliquely downward end of the driving shaft 10 extends out of the mixing tank 2 and is connected to the driver 2 7, and is driven to rotate by the driver 2 7. The driver 2 7 is provided on the discharging platform 5, and the driver 3 13 is provided on the feeding platform 6. The driver 2 7 and the driver 3 13 are respectively connected to the two ends of the driving shaft 10, and respectively control the two sections of the shaft constituting the driving shaft 10.

[0057] In this embodiment, the second driver 7 and the third driver 13 are specifically drive motors, and one end of each of the two shaft sections is rotatably connected via a rotating shaft 302, and the two shaft sections are driven to rotate by the drive motors. During the rotation of the shaft, the spiral blades 11 arranged on the shaft are driven to rotate.

[0058] When stirring and mixing is required, the two shaft sections rotate in opposite directions, so that the mixed raw materials are concentrated in the inner cavity of the stirring tank 2 for mixing.

[0059] When discharging and unloading are required, the two shaft sections are controlled to rotate in the same direction respectively, and the concrete in the inner cavity at the oblique lower end of the mixing tank 2 is quickly brought out by the spiral blade 11, and the inner cavity at the oblique upper end of the mixing tank 2 is continuously fed through the spiral blade 11.

[0060] The drive shaft 10 is installed through the rotating shaft 302 and the driver 27, and the drive shaft 10 is controlled to rotate by the driver. The rotation of the spiral blade 11 is separated from the rotation of the mixing tank 2, so that during the mixing process, by controlling the mixing tank 2 and the spiral blade 11 to rotate relative to each other at the same time, faster and more sufficient mixing can be achieved, so that the concrete in the inner cavity of the mixing tank 2 is mixed more evenly.

[0061] The upper end of the feed table 6 is connected to a feed hopper 14, a driver 3 13 is arranged on the feed hopper 14, the upper end of the drive shaft 10 is connected to the driver 3 13, and the lower end of the feed hopper 14 is connected to a discharge trough. The discharge trough is connected to the opening at the bottom of the feed hopper 14, and the mixed raw materials enter the discharge trough through the bottom opening, and the raw materials to be mixed are transported to the mixing tank 2 through the guiding effect of the discharge trough.

[0062] The design of the feed hopper 14 allows the raw materials to continuously and stably enter the next processing link, avoiding production stagnation caused by insufficient or interrupted supply.

[0063] The spiral blade 11 arranged in the middle of the driving shaft 10 has the largest diameter, and the diameters of the spiral blades 11 extending from the center of the driving shaft 10 to both ends gradually decrease. The spiral blades 11 symmetrically arranged on the two sections of the driving shaft 10 with the center of the driving shaft 10 have opposite spiral rotation directions.

[0064] The diameter of the spiral blade 11 gradually decreases from the middle to both ends, and the spiral blade 11 in the middle of the drive shaft 10 has the largest diameter, so that the spiral blade 11 fits more closely with the inner cavity of the mixing tank 2. The opposite spiral rotation direction can make the concrete concentrate in the center of the mixing chamber by controlling the drive shaft 10 to rotate in one direction during the mixing process, so as to facilitate the full mixing of all raw materials.

[0065] The method for preparing machine-made sand concrete comprises the following steps:

[0066] Step 1: Add a certain ratio of machine-made sand and cement into the inner cavity of the mixing tank 2 through the opening of the conical shell 203 connected to the upper end of the tank body 201, and rotate the spiral blade 11 during the adding process to gather the added raw materials at the center of the inner cavity of the mixing tank 2;

[0067] The rotating spiral blades 11 quickly gather and preliminarily mix the newly added machine-made sand and cement raw materials at the center of the inner cavity of the mixing tank 2. This instant mixing method helps to reduce the stratification of raw materials in the tank, improve the mixing efficiency, and ensure that the raw materials can be mixed evenly and quickly, laying a good foundation for subsequent deeper mixing. The upward slanting conical shell 203 opening design helps to control the speed and direction of adding raw materials and reduce the dust generated by the direct impact of raw materials on the bottom or side walls of the tank during the addition process. This not only improves the working environment and reduces the impact of dust on the health of operators, but also reduces pollution to the environment. The stirring method of the rotating spiral blade 11 may be more efficient than the traditional stirring method because it can mix the raw materials more evenly more quickly, thereby shortening the stirring time and reducing energy consumption.

[0068] In addition, by optimizing the flow and mixing pattern in the mixing tank 2, the energy utilization efficiency can be further improved. Since the spiral blade 11 plays a guiding and mixing role during the mixing process, the direct impact and wear of the raw materials on the inner wall of the mixing tank 2 are reduced, which helps to extend the service life of the mixing tank 2 and related equipment. This reduces maintenance costs and improves the reliability and stability of the equipment. The speed of adding raw materials and the rotation speed of the spiral blade 11 can be adjusted according to different production requirements to adapt to the production of concrete or mortar with different proportions and mixing requirements.

[0069] Step 2: The stirring tank 2 is driven to rotate by the driving component 3, and water is supplied to the water spray hole through the water storage tank 202. The water spray hole continuously sprays water into the stirring chamber and adds it to the raw materials. At the same time, the spiral blade 11 is driven to rotate forward and reversely to stir and mix the raw materials.

[0070] The combination of the rotation of the stirring tank 2 and the forward and reverse rotation of the spiral blade 11 can form a multi-dimensional mixing motion, so that the raw materials are fully mixed in the stirring chamber. The addition of water further promotes the wetting and dispersion of the raw materials, which helps to improve the mixing uniformity.

[0071] Step three, after the raw materials are evenly mixed to form concrete, the spiral blade 11 is controlled to rotate continuously in one direction, so that the formed concrete is continuously discharged from the tank body 201 obliquely toward the opening of the conical shell 203 connected to the lower end.

[0072] The continuous rotation of the spiral blade 11 provides a stable driving force for the concrete, ensuring that the concrete can be discharged from the mixing tank 2 continuously and evenly. This discharge method avoids the problems of concrete caking and clogging that may occur in traditional methods, and improves production efficiency and the quality of concrete. During the discharge process, the continuous rotation of the spiral blade 11 still stirs the concrete to a certain extent, which helps to further improve the uniformity of the concrete. This continuous stirring action can reduce bubbles and voids in the concrete and improve the density and strength of the concrete. The design of the opening of the conical shell 203 allows the concrete to better fit the wall of the tank body 201 and concentrate at the outlet, reducing the residual concrete in the mixing tank 2. This not only improves the utilization rate of raw materials, but also reduces the workload of cleaning and maintenance.

[0073] Working principle: During the operation of the device, the raw materials of each component are first added into the inner cavity of the stirring tank 2 through the feeding platform 6. During the process of adding the raw materials, the driving shaft 10 is driven to rotate by the driver 3 13, so that the spiral blade 11 in the inner cavity on the obliquely upward side of the stirring tank 2 also rotates, and the added raw materials are continuously transported to the center position of the inner cavity of the stirring tank 2.

[0074] At the same time, the water spray hole at the upper end of the inner groove 2031 at the entrance of the conical shell 203 continuously sprays water to the added raw materials to adhere to the raised small particles and reduce dust pollution.

[0075] After the raw materials are added, the driving assembly 3 drives the mixing tank 2 to rotate, and at the same time, the two spiral blades 11 with opposite rotation directions in the inner cavity of the mixing tank 2 are also controlled to rotate, so as to quickly mix the raw materials evenly.

[0076] During the stirring and mixing process, as the stirring tank 2 continuously rotates on the arc support 4, the water spray holes at the top continuously change, while the inner groove 2031 at the lower end is filled and closed by the magnetic ring 205 which is always adsorbed and held at the bottom of the inner groove 2031 by the circular magnetic block 402, thereby preventing a large amount of mud and sand from entering the inner groove 2031 and affecting the movement of the tank body 201.

[0077] Since the inner groove 2031 itself continuously sprays water outward through the water spray hole, the mud and sand entering the inner groove 2031 can also be washed away.

[0078] The two spiral blades 11 arranged in opposite spiral directions can concentrate the mixed raw materials at the center of the mixing tank 2 when rotating, so that the proportioned raw materials can be fully mixed. The mixed concrete can be brought out of the mixing tank 2 by the rotation of the spiral blades 11, and finally discharged to a predetermined position through the discharge platform 5.

[0079] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. Machine-made sand concrete proportioning device, characterized by: comprising a support platform (1), A stirring tank (2) is obliquely arranged on the support platform (1), and a driving component (3) for driving the stirring tank (2) to rotate is arranged on the support platform (1). The stirring tank (2) comprises a tank body (201), a plurality of water storage tanks (202) are arranged on the outer wall of the tank body (201), and conical round shells (203) are arranged at both ends of the tank body (201). A circular slide rail (204) is arranged on the outer wall of the conical shell (203); an inner groove (2031) is arranged on the inner wall of the conical shell (203) at a position corresponding to the circular slide rail (204); a water spray hole connected to the water storage tank (202) is arranged on the inner wall of the inner groove (2031); A magnetic ring (205) is slidably arranged in the inner groove (2031); the magnetic ring (205) is in an incomplete circular shape; the curvature of the gap between the two ends is less than half of the curvature of the entire magnetic ring (205); a pair of arc supports (4) having the same taper as the conical shell (203) are respectively arranged at the two ends of the support platform (1); a slide groove (401) is arranged on the inner ring wall of the arc support (4); the slide groove (401) is slidably engaged with the circular slide rail (204); and a circular magnetic block (402) is fixedly arranged on the inner wall of the slide groove (401).

2. The machine-made sand concrete proportioning device according to claim 1 is characterized in that: A discharging platform (5) and a feeding platform (6) are respectively arranged at the left and right ends of the support platform (1), and a second driver (7) is arranged on the discharging platform (5).

3. The machine-made sand concrete proportioning device according to claim 1 is characterized in that: The driving assembly (3) comprises a driver 1 (301), wherein the driver 1 (301) is connected to a driving gear (303) via a rotating shaft (302), and the driving gear (303) is meshingly connected with an outer ring gear (304), and the outer ring gear (304) is fixedly sleeved on the outer wall surface of the tank body (201).

4. The machine-made sand concrete proportioning device according to claim 3 is characterized in that: A pair of baffles (305) are arranged on the outer wall surface of the tank body (201), and the outer ring gear (304) is arranged between the two baffles (305).

5. The machine-made sand concrete proportioning device and concrete preparation method according to claim 1 are characterized in that: The arc support (4) is semicircular, and a support plate (8) is hingedly connected to the bottom of the arc support (4), and the support plate (8) is fixedly connected to the support platform (1).

6. The machine-made sand concrete proportioning device according to claim 2, characterized in that: The inner cavity of the stirring tank (2) is provided with a rotating shaft (302) support, and a driving shaft (10) is provided through the rotating shaft (302) support. The driving shaft (10) is formed by splicing two shafts that can rotate independently. The driving shaft (10) is provided with a spiral blade (11). The driving shaft (10) extends obliquely downward from the stirring tank (2) and is connected to the second driver (7), and is driven to rotate by the second driver (7).

7. The machine-made sand concrete proportioning device according to claim 2 is characterized in that: The upper end of the feed platform (6) is connected to a feed hopper (14), a driver three (13) is provided on the feed hopper (14), an obliquely upward end of the drive shaft (10) is connected to the driver three (13), and the lower end of the feed hopper (14) is connected to a discharge chute.

8. The machine-made sand concrete proportioning device according to claim 6, characterized in that: The spiral blade (11) arranged in the middle of the driving shaft (10) has the largest diameter, and the diameters of the spiral blades (11) extending from the center of the driving shaft (10) to both ends gradually decrease. The spiral blades (11) symmetrically arranged on the shaft bodies of the two sections of the driving shaft (10) with respect to the center of the driving shaft (10) have opposite spiral rotation directions.

9. A method for preparing machine-made sand concrete, specifically applied to the machine-made sand concrete proportioning device according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: adding machine-made sand and cement in a certain ratio into the inner cavity of the mixing tank (2) through the opening of the conical round shell (203) connected to the upper end of the tank body (201), and rotating the spiral blade (11) during the adding process to gather the added raw materials at the center of the inner cavity of the mixing tank (2); Step 2: The stirring tank (2) is driven to rotate by the driving component (3), and water is supplied to the water spray hole through the water storage tank (202), and the water spray hole continuously sprays water into the stirring chamber and adds it to the raw materials, and at the same time, the spiral blade (11) is driven to rotate forward and reverse to stir and mix the raw materials; Step 3: After the raw materials are evenly mixed to form concrete, the spiral blade (11) is controlled to continuously rotate in one direction, so that the formed concrete is continuously discharged from the tank body (201) obliquely toward the opening of the conical round shell (203) connected to the lower end.

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