An energy-saving concrete mixing and placing device and process

Abstract

This invention relates to an energy-saving concrete mixing and placing device and process, belonging to the field of concrete mixing and placing technology. It includes a mixing tank with a mixing shaft installed on it, a placing pipe installed at the bottom of the mixing tank, and a mixing assembly on the mixing tank. The mixing assembly includes a pusher ring located inside the mixing tank, capable of reciprocating vertically within the tank. Both the top and bottom sides of the pusher ring are sloped. Through bidirectional compound mixing by the mixing shaft and rotating plate, combined with airflow injection into the concrete for agitation, the concrete material moves in various directions, achieving thorough mixing without dead zones throughout the mixing tank, significantly improving mixing uniformity. The pusher ring continuously and dynamically removes adhering materials from the inner wall of the mixing tank, preventing waste caused by unusable, hardened material. During the unloading and placing stage, the mechanical pushing and airflow purging work together to completely empty the material, thoroughly eliminating residual loss during unloading and achieving energy saving and consumption reduction.

Description

Technical Field

[0001] This invention relates to the field of concrete mixing and placing technology, specifically to an energy-saving concrete mixing and placing device and process. Background Technology

[0002] A concrete mixing and placing device is a mechanical device used in construction engineering to mix cement, aggregates, water, and admixtures in a uniform proportion and then transport the mixed concrete to the designated pouring location. It is a key piece of equipment in modern construction, especially in large-scale, industrialized construction. Its core function is to ensure the uniformity, workability, and stability of the concrete mixture, thereby directly affecting the final quality of the engineering structure and construction efficiency.

[0003] However, existing common concrete mixing and placing devices face a series of problems in practical applications that urgently need to be addressed. First, during the mixing process, materials easily adhere to the inner wall of the mixing drum under centrifugal force, forming a stubborn layer. This layer not only reduces the effective mixing volume, leading to inaccurate material proportions and waste, but also mixes in hardened old materials in subsequent batches, severely affecting the uniformity of the fresh concrete quality. Second, traditional mixing methods based on a central mixing shaft easily create "dead zones" near the drum wall, resulting in insufficient material mixing and uneven microstructure of the concrete. Furthermore, cleaning the adhered materials is time-consuming and labor-intensive, significantly reducing equipment utilization and increasing maintenance costs. Finally, during the placing (unloading) stage, relying solely on gravity for natural descent often results in a large amount of mixture residue remaining at the bottom and on the drum walls, causing material loss and potentially affecting the actual mix proportions of different batches due to inconsistent residue levels. These problems collectively restrict improvements in construction quality, material utilization, and overall operational efficiency. Summary of the Invention

[0004] An energy-saving concrete mixing and feeding device and process includes a mixing tank, a mixing shaft installed on the mixing tank, a feeding pipe installed at the bottom of the mixing tank, and a mixing component on the mixing tank. The mixing component includes a push ring located inside the mixing tank, which can move back and forth linearly inside the mixing tank. Both the top and bottom sides of the push ring are set as inclined surfaces. The outer ring surface of the push ring is tightly slidably fitted with the inner wall of the mixing tank. An equipment groove is opened inside the push ring, and an inner ring is rotatably connected inside the equipment groove. Multiple rotating plates are uniformly fixedly connected to the inner surface of the inner ring. The inner ring can rotate coaxially on the push ring. The rotation direction of the rotating plates driven by the inner ring is opposite to the mixing direction of the mixing shaft. An inner groove is opened inside the push ring, and multiple rubber air nozzles are fixedly connected in a ring shape at the bottom of the groove wall.

[0005] Furthermore, the mixing assembly also includes a support tube, which is fixedly connected to the outer wall of the mixing tank. An energy-saving motor is fixedly connected to the bottom of the outer wall of the mixing tank. The output shaft of the energy-saving motor faces upward and is fixedly connected to a reciprocating lead screw, which is located inside the support tube. The top end of the reciprocating lead screw is rotatably connected to the top of the mixing tank. A guide plate is slidably connected to the support tube, and a retaining shaft is rotatably connected to the guide plate. A connecting rod is fixedly connected to the top surface of the guide plate, and a support block is fixedly connected to the top end of the connecting rod. The support block has a cavity. A fan is rotatably connected inside the cavity. An energy-saving air pump is installed on the top surface of the support block. The air pump's spray end is connected to the cavity of the support block. A support rod is fixedly connected to the lower surface of the support block away from the connecting rod. The bottom end of the support rod is fixedly connected to the top surface of the push ring. An air inlet groove is opened inside the support rod. The air inlet groove is connected to the cavity of the support block and the inside of the equipment slot. A rotating rod is fixedly connected to the bottom of the fan. The rotating rod passes through the air inlet groove and extends into the equipment slot. The bottom end of the rotating rod is rotatably connected to the wall of the equipment slot. The air inlet groove and the rotating rod are fitted with a clearance.

[0006] Furthermore, the mixing assembly also includes a synchronous belt that is connected to the bottom of the rotating rod and between the inner and outer ring surfaces. A connecting shaft is fixedly connected to the top surface of the push ring away from the support rod. A connecting block is fixedly connected to the top of the connecting shaft. A guide rod is fixedly connected to the bottom of the connecting block away from the connecting shaft. The guide rod is slidably connected to the mixing tank. An exhaust groove is provided on the connecting shaft. The top of the exhaust groove passes through the connecting block. The bottom of the exhaust groove is connected to the inside of the equipment tank. An air hole is provided at the bottom of the tank wall corresponding to the exhaust groove position. The air hole is connected to the inside of the inner tank. An energy-saving electric push rod is fixedly connected to the bottom of the tank wall. The telescopic shaft end of the energy-saving electric push rod faces upward and is fixedly connected to a rubber plug.

[0007] Furthermore, a double helical circulation groove with both ends connected is opened on the reciprocating screw. The end of the retaining shaft near the reciprocating screw is slidably connected to the thread groove of the reciprocating screw. The position where the double thread groove of the reciprocating screw is connected at both ends is set as an arc transition groove to realize the reversal. The double thread groove of the reciprocating screw is used to control the up and down sliding of the guide plate.

[0008] Furthermore, the energy-saving air pump is used to drive the fan to rotate by ejecting airflow. Due to the clearance fit between the rotating rod and the air inlet slot, i.e., there is a gap between the rotating rod and the air inlet slot, the airflow ejected by the energy-saving air pump can enter the equipment slot through the air inlet slot.

[0009] Furthermore, the top and bottom ends of the rubber plug are respectively inserted into the bottom opening of the exhaust groove and the air hole of the inner groove. The rubber plug is used to control the flow direction of the gas injected into the equipment groove by the energy-saving air pump.

[0010] An energy-saving concrete mixing and placing process includes the following steps: Step 1: Initial preparation. Ensure the device is in its initial state. The push ring is located at the top of the inner wall of the mixing tank, the guide plate is located at the top of the support tube, the energy-saving electric push rod retracts, and the rubber plug is inserted into the air hole of the inner tank to achieve a sealed inner tank.

[0011] Further, step two: injecting materials and starting basic mixing. Inject concrete materials into the mixing tank and start the mixing shaft to perform basic mixing and homogenization of the concrete in the mixing tank.

[0012] Step 3: Activate the reciprocating scraping function of the mixing component, drive the energy-saving motor to run, drive the reciprocating screw to rotate, and through the cooperation of the guide plate, connecting rod, support rod and connecting shaft, drive the push ring to move up and down linearly back and forth in the mixing tank, scrape off the concrete attached to the inner wall of the mixing tank, and push the material to the mixing area of ​​the mixing shaft.

[0013] Further, in step four: start the bidirectional compound stirring, drive the energy-saving air pump to run, spray high-speed airflow into the cavity of the support block, drive the fan and rotating rod to rotate, and drive the inner ring and rotating plate to rotate through the synchronous belt, which is opposite to the stirring direction of the stirring shaft, forming bidirectional compound stirring.

[0014] Step 5: Airflow-assisted mixing and unloading. Drive the energy-saving electric actuator according to the demand to block the exhaust groove with the rubber plug and open the air hole in the inner groove, so that the gas can be sprayed into the concrete through the rubber air nozzle to assist in mixing. After the mixing is completed, the push ring scrapes back and forth and works in conjunction with the air jet from the rubber air nozzle to help the material to be distributed through the distribution pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are: Through bidirectional compound mixing of the mixing shaft and rotating plate, combined with airflow injection into the concrete for disturbance, the concrete material moves in various directions, achieving full-area mixing without dead corners in the mixing tank, greatly improving the uniformity of mixing. In addition, the push ring continuously moves up and down to dynamically remove the adhering material on the inner wall of the mixing tank, avoiding the waste of raw materials caused by the adhesion and solidification of unusable materials. During the unloading and spreading stage, the mechanical pushing and airflow blowing work together to achieve complete material discharge, completely eliminating residual loss during unloading, and achieving energy saving and consumption reduction. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall device of the present invention; Figure 2 This is a schematic diagram showing the positions of the stirring shaft, push ring, and other structures of the present invention; Figure 3 This is a cross-sectional schematic diagram of the mixing tank, pusher ring, and other structures of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 For the present invention Figure 3Enlarged view of point B in the middle; Figure 6 For the present invention Figure 3 Enlarged view of point C in the middle; Figure 7 For the present invention Figure 3 Enlarged view of point D; Figure 8 This is a schematic diagram showing the positions of the support tube, push ring, and other structures of the present invention; Figure 9 This is a schematic diagram showing the positions of the rubber nozzle, rotating plate, and other structures of the present invention; Figure 10 This is a schematic diagram showing the positions of the inner ring, synchronous belt, and other structures of the present invention; Figure 11 For the present invention Figure 10 Enlarged diagram of point E in the middle.

[0017] In the picture: 11. Mixing tank; 12. Mixing shaft; 13. Distributor pipe; 21. Support tube; 22. Energy-saving motor; 23. Reciprocating lead screw; 24. Guide plate; 25. Shaft retainer; 26. Connecting rod; 27. Support block; 28. Support rod; 29. ​​Fan; 210. Energy-saving air pump; 211. Air inlet slot; 212. Rotating rod; 213. Push ring; 214. Equipment slot; 215. Inner ring; 216. Synchronous belt; 217. Rotating plate; 218. Coupling; 219. Connecting block; 220. Guide rod; 221. Exhaust slot; 222. Inner slot; 223. Rubber air nozzle; 224. Energy-saving electric actuator; 225. Rubber plug. Detailed Implementation

[0018] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below. Example 1:

[0019] Reference Figures 1 to 11 As shown, an energy-saving concrete mixing and placing device includes a mixing tank 11, a mixing shaft 12 installed on the mixing tank 11, and a placing pipe 13 installed at the bottom of the mixing tank 11.

[0020] Among them, the mixing tank 11, the mixing shaft 12, and the material distribution pipe 13 are all existing known technologies. The mixing tank 11 is used to mix and blend concrete through the mixing shaft 12, and the mixing tank 11 distributes the concrete to the outside through the material distribution pipe 13.

[0021] It should be noted that in the prior art, a control valve (not shown) is provided at the bottom of the mixing tank 11 where it connects with the placing pipe 13 to control the discharge of concrete. This control valve is used to ensure that materials do not enter the placing pipe 13 during the concrete mixing process.

[0022] A mixing assembly is provided on the mixing tank 11. The mixing assembly includes a push ring 213, which is located inside the mixing tank 11. The push ring 213 can move back and forth linearly inside the mixing tank 11. Both the top and bottom sides of the push ring 213 are set as inclined surfaces. The outer ring surface of the push ring 213 is tightly slidably fitted with the inner wall of the mixing tank 11. An equipment groove 214 is opened inside the push ring 213. An inner ring 215 is rotatably connected inside the equipment groove 214. Multiple rotating plates 217 are evenly fixedly connected to the inner surface of the inner ring 215. The inner ring 215 can rotate coaxially on the push ring 213. The rotation direction of the inner ring 215 and the rotating plates 217 is opposite to the stirring direction of the mixing shaft 12. An inner groove 222 is opened inside the push ring 213. Multiple rubber air nozzles 223 are fixedly connected in a ring shape at the bottom of the groove wall of the inner groove 222.

[0023] The mixing assembly also includes a support tube 21, which is fixedly connected to the outer wall of the mixing tank 11. An energy-saving motor 22 is fixedly connected to the bottom of the outer wall of the mixing tank 11. The output shaft of the energy-saving motor 22 faces upward and is fixedly connected to a reciprocating screw 23. The reciprocating screw 23 is located inside the support tube 21, and its top end is rotatably connected to the top of the mixing tank 11. A guide plate 24 is slidably connected to the support tube 21, and a retaining shaft 25 is rotatably connected to the guide plate 24. A connecting rod 26 is fixedly connected to the top surface of the guide plate 24, and a support block 27 is fixedly connected to the top end of the connecting rod 26. A cavity is opened inside the support block 27, and a fan 29 is rotatably connected inside the cavity of the support block 27. An energy-saving air pump 210 is installed on the top surface of block 27. The air pump 210 is connected to the cavity of the support block 27. A support rod 28 is fixedly connected to the lower surface of the support block 27 away from the connecting rod 26. The bottom end of the support rod 28 is fixedly connected to the top surface of the push ring 213. An air inlet groove 211 is opened in the support rod 28. The air inlet groove 211 is connected to the cavity of the support block 27 and the inside of the equipment groove 214. A rotating rod 212 is fixedly connected to the bottom of the fan 29. The rotating rod 212 passes through the air inlet groove 211 and extends into the equipment groove 214. The bottom end of the rotating rod 212 is rotatably connected to the groove wall of the equipment groove 214. The air inlet groove 211 and the rotating rod 212 are fitted with a clearance.

[0024] The mixing assembly also includes a synchronous belt 216 that is connected between the bottom end of the rotating rod 212 and the outer ring surface of the inner ring 215. A connecting shaft 218 is fixedly connected to the top surface of the push ring 213 away from the support rod 28. A connecting block 219 is fixedly connected to the top of the connecting shaft 218. A guide rod 220 is fixedly connected to the bottom of the connecting block 219 away from the connecting shaft 218. The guide rod 220 is slidably connected to the mixing tank 11. An exhaust groove 221 is provided on the connecting shaft 218. The top of the exhaust groove 221 passes through the connecting block 219. The bottom of the exhaust groove 221 is connected to the inside of the equipment tank 214. An air hole is provided at the bottom of the tank wall of the equipment tank 214 corresponding to the position of the exhaust groove 221. The air hole is connected to the inside of the inner tank 222. An energy-saving electric push rod 224 is fixedly connected to the bottom of the tank wall of the equipment tank 214. The telescopic shaft end of the energy-saving electric push rod 224 faces upward and is fixedly connected to a rubber plug 225.

[0025] Among them: the reciprocating screw 23 is the existing known technology. The reciprocating screw 23 has a double helical circulation groove with the beginning and end connected. The end of the retaining shaft 25 near the reciprocating screw 23 is slidably connected to the thread groove of the reciprocating screw 23.

[0026] It should be noted that the position where the two threaded grooves of the reciprocating screw 23 are connected end to end is set as an arc transition groove to realize the reversal. The two threaded grooves of the reciprocating screw 23 are used to control the up and down sliding of the guide plate 24.

[0027] It should be noted that the existing linear module mechanism consists of the support tube 21, the energy-saving motor 22, the reciprocating screw 23, the guide plate 24, and the retaining shaft 25. Specifically, the energy-saving motor 22 acts as the drive source to rotate the reciprocating screw 23. During the rotation of the reciprocating screw 23, the threaded groove wall of the reciprocating screw 23 presses against the retaining shaft 25, which tends to push the guide plate 24 and the retaining shaft 25 to deflect accordingly along the threaded direction of the reciprocating screw 23. However, the guide plate 24 is also slidably connected to the support tube 21. Thus, under the sliding guide limit of the support tube 21, the guide plate 24 can slide along the axial direction of the support tube 21 as the reciprocating screw 23 rotates. When the retaining shaft 25 moves with the guide plate 24 to the end of the threaded groove of the reciprocating screw 23, the retaining shaft 25 enters the transition connection position of the positive and negative double threaded grooves at the end of the reciprocating screw 23. At this time, the retaining shaft 25 can smoothly slide into the other threaded groove. Thus, it can move in the same direction as the reciprocating screw 23 as it rotates.

[0028] In summary: Driven by the energy-saving motor 22, the reciprocating screw 23 rotates continuously in a single direction, which can drive the guide plate 24 to move linearly back and forth along the axial direction of the support tube 21.

[0029] It should be added that the length of the support tube 21 covers the inner length of the mixing tank 11.

[0030] Among them, the top and bottom sides of the guide plate 24 are fixedly connected with folded rubber strips. The folded rubber strips are fixedly connected to the top and bottom ends of the support pipe 21. The folded rubber strips assist the guide plate 24 in sliding on the support pipe 21 through their folded shape and the extensibility of rubber. At the same time, they can seal the inside of the support pipe 21 to prevent impurities from the concrete construction site from entering the support pipe 21 and ensure the stability of the cooperation of the reciprocating screw 23, the clamping shaft 25 and other structures.

[0031] Specifically, the fit between the equipment slot 214 and the inner ring 215 has been adjusted for airtightness to ensure that the equipment slot 214 is airtight while the inner ring 215 rotates circumferentially.

[0032] It should be noted that the synchronous belt 216 is a known existing technology. The synchronous belt 216 has teeth on its inner side (not shown) and engages with the rotating rod 212 and inner ring 215 for transmission. The synchronous belt 216 has the following characteristics: the synchronous belt 216 transmits the rotation of the rotating rod 212 and inner ring 215 with high precision and no slippage. Its function in this application is to ensure that the rotation of the rotating rod 212 is synchronously transmitted to the inner ring 215, so that the inner ring 215 rotates synchronously.

[0033] It should be noted that the rotating plate 217 is located in a position that does not interfere with the stirring shaft 12.

[0034] Among them, the energy-saving air pump 210 is used to drive the fan 29 to rotate by spraying air. Since the rotating rod 212 and the air inlet groove 211 are in clearance fit, that is, there is a gap between the rotating rod 212 and the air inlet groove 211, the air sprayed by the energy-saving air pump 210 can enter the equipment groove 214 through the air inlet groove 211.

[0035] It should be noted that the size of the fan 29 and the power of the energy-saving air pump 210, or the driving method of the fan 29, can be adjusted according to actual needs, with the aim of ensuring that the fan 29 can drive the rotating plate 217 to rotate.

[0036] It should be noted that the function of the exhaust trough 221 is to discharge the gas that enters the equipment tank 214 and maintain the stability of the gas pressure in the equipment tank 214.

[0037] It should be noted that the functions of the coupling 218 and the guide rod 220 are: to cooperate with the support rod 28 to ensure that the top two sides of the push ring 213 are evenly stressed, and to provide auxiliary guidance for the linear reciprocating movement of the push ring 213 in the mixing tank 11.

[0038] Wherein: the top and bottom ends of the rubber plug 225 are respectively inserted and matched with the bottom groove opening of the exhaust groove 221 and the air hole of the inner groove 222. The rubber plug 225 is used to control the flow direction of the gas injected into the equipment groove 214 by the energy-saving air pump 210.

[0039] Specifically, the bottom of the rubber nozzle 223 faces the inner wall of the mixing tank 11, and the bottom of the rubber nozzle 223 is set as the jet end. The rubber nozzle 223 relies on the elasticity of the rubber material itself and the synergistic effect of the air pressure difference between the top and bottom sides to achieve the characteristics of one-way sealing and backflow prevention. Under normal conditions, the bottom of the rubber nozzle 223 is squeezed and closed by the elastic force of the rubber. However, when the air pressure at the top is too high, the gas pressure acts on the top of the rubber nozzle 223, overcoming the elastic tightening force of the rubber, thereby opening the jet end at the bottom of the rubber nozzle 223, forming a gap, and thus the gas acting on the top of the rubber nozzle 223 can be discharged outward through the jet end at the bottom of the rubber nozzle 223.

[0040] In the initial state, that is, before the concrete has been mixed and distributed, the structural states within the mixing assembly are as follows: At this time, the push ring 213 is located at the top of the inner wall of the mixing tank 11, the guide plate 24 is located at the top of the support tube 21, the telescopic shaft of the energy-saving electric push rod 224 retracts, and the bottom end of the rubber plug 225 is inserted into the air hole of the inner tank 222, thereby sealing the inside of the inner tank 222.

[0041] During operation, i.e., when concrete is injected into the mixing tank 11 and the mixing shaft 12 is mixing the concrete in the mixing tank 11, the mixing component operates as follows: At this time, the energy-saving motor 22 is driven to run, and the output shaft of the energy-saving motor 22 drives the reciprocating screw 23 to rotate. Based on the above supplement to the energy-saving motor 22 and the reciprocating screw 23, it can be seen that during the rotation of the reciprocating screw 23, the guide plate 24 can move up and down linearly on the support tube 21, and the guide plate 24 drives the connecting rod 26 to move synchronously. The connecting rod 26, through the cooperation of the support rod 28 and the connecting shaft 218, drives the push ring 213 to move up and down linearly in the mixing tank 11.

[0042] As the push ring 213 moves back and forth in a straight line within the mixing tank 11, the inclined surfaces on both the top and bottom sides of the push ring 213 abut against the inner wall of the mixing tank 11, scraping off the concrete material adhering to the inner wall of the mixing tank 11. The inclined surfaces then guide the material towards the center of the mixing tank 11, i.e., towards the mixing area of ​​the mixing shaft 12. This prevents the material from adhering to the inner wall of the mixing tank 11 for a long time, thus avoiding the formation of a mixing blind zone and enhancing the uniformity of concrete mixing.

[0043] In addition to its role in the mixing process, the push ring 213 also plays a role in the discharge process when the material in the mixing tank 11 is finished being mixed and needs to be discharged. The push ring 213 scrapes back and forth in a straight line in the mixing tank 11, which can help to discharge the material in the mixing tank 11, ensuring that the material attached to the inner wall of the mixing tank 11 can be discharged from the mixing tank 11 and distributed to the outside through the distribution pipe 13.

[0044] As the push ring 213 moves linearly back and forth inside the mixing tank 11 to assist in the mixing and homogenization of concrete, the user can drive the energy-saving air pump 210 to operate. This causes the energy-saving air pump 210 to spray high-speed airflow into the cavity of the support block 27, thereby driving the fan 29 to rotate. The rotation of the fan 29 drives the rotating rod 212 to rotate synchronously. The push ring 213 drives the inner ring 215 to rotate synchronously via the synchronous belt 216. During the rotation of the inner ring 215, the inner ring 215 drives the multiple rotating plates 217 on its inner surface to rotate synchronously. Since the rotation direction of the inner ring 215 is opposite to that of the stirring shaft 12, the inner ring 215 drives multiple rotating plates 217 to rotate in the same opposite direction to the stirring shaft 12. This allows the inner ring 215 to move up and down synchronously with the push ring 213 to scrape off the adhering material as the push ring 213 moves up and down within the mixing tank 11. This also drives multiple rotating plates 217 on its inner surface to rotate in the opposite direction to the stirring direction of the stirring shaft 12, thereby forming a stirring area outside the stirring range of the stirring shaft 12 that is in the opposite direction to the stirring direction of the stirring shaft 12.

[0045] The airflow ejected by the energy-saving air pump 210 enters the equipment tank 214 through the rotating rod 212 and is discharged outward through the exhaust duct 221, thereby ensuring the stability of the air pressure within the equipment tank 214. During the reciprocating movement of the push ring 213 and the reverse rotation of the inner ring 215, the user can also drive the energy-saving electric push rod 224 to spray airflow into the concrete being mixed inside the mixing tank 11, assisting in the uniform mixing of the concrete, as detailed below: The user can drive the energy-saving electric actuator 224 to extend its telescopic shaft. This extension shaft drives the rubber plug 225 upwards, inserting it into the bottom of the exhaust groove 221 and sealing it. As the rubber plug 225 moves upwards, its bottom end disengages from the air hole in the inner groove 222, connecting the inner groove 222 with the inside of the equipment groove 214. Consequently, with the exhaust groove 221 sealed, the inside of the equipment groove 214 becomes airtight. When closed, the airflow ejected by the energy-saving air pump 210 continuously accumulates in the equipment tank 214, thereby increasing the air pressure in the equipment tank 214 and the inner tank 222. The air pressure acting on the top of the rubber nozzle 223 pushes the bottom jet end of the rubber nozzle 223 to open, and the gas in the inner tank 222 and the equipment tank 214 is ejected outward from the bottom end of the rubber nozzle 223. This allows the bottom of the push ring 213 to spray airflow into the concrete in the mixing tank 11 through multiple annular rubber nozzles 223, thereby promoting the uniform mixing of the concrete.

[0046] The air jet from the rubber nozzle 223 can also be used during the concrete placement process. That is, when the concrete in the mixing tank 11 needs to be discharged into the placement pipe 13 for placement, the gas sprayed from the rubber nozzle 223 can help the concrete adhering to the inner wall of the mixing tank 11 to fall off.

[0047] In summary, the operation of the mixing component can achieve the following beneficial effects during the concrete mixing and placement process: The mixing shaft 12 and the rotating plate 217 combine bidirectional mixing, and the airflow is injected into the concrete to agitate it. The concrete material moves in various directions, achieving full-area mixing without dead corners in the mixing tank 11. The uniformity of mixing is greatly improved. In addition, the push ring 213 continuously moves up and down to dynamically remove the adhering material on the inner wall of the mixing tank 11, avoiding the waste of raw materials caused by the inability to use the material after it has solidified. During the unloading and spreading stage, the mechanical pushing and airflow blowing work together to achieve complete material discharge, completely eliminating residual loss during unloading and achieving energy saving and consumption reduction. Example 2:

[0048] An energy-saving concrete mixing and placing process includes the following steps: Step 1: Initial preparation. Ensure the device is in its initial state. The push ring 213 is located at the top of the inner wall of the mixing tank 11, the guide plate 24 is located at the top of the support tube 21, the energy-saving electric push rod 224 retracts its telescopic shaft, and the rubber plug 225 is inserted into the air hole of the inner groove 222 to achieve the sealing of the inner groove 222.

[0049] Step 2: Injecting materials and starting basic mixing. Inject concrete materials into mixing tank 11 and start mixing shaft 12 to perform basic mixing and homogenization of concrete in mixing tank 11.

[0050] Step 3: Activate the reciprocating scraping function of the mixing component, drive the energy-saving motor 22 to run, drive the reciprocating screw 23 to rotate, and through the cooperation of the guide plate 24, connecting rod 26, support rod 28 and connecting shaft 218, drive the push ring 213 to move up and down linearly back and forth in the mixing tank 11, scrape off the concrete attached to the inner wall of the mixing tank 11, and push the material to the mixing area of ​​the mixing shaft 12.

[0051] Step 4: Start the bidirectional compound stirring, drive the energy-saving air pump 210 to run, spray high-speed airflow into the cavity of the support block 27, drive the fan 29 and the rotating rod 212 to rotate, and drive the inner ring 215 and the rotating plate 217 to rotate through the synchronous belt 216, which is opposite to the stirring direction of the stirring shaft 12, forming bidirectional compound stirring.

[0052] Step 5: Airflow-assisted mixing and unloading. Drive the energy-saving electric push rod 224 according to the demand, so that the rubber plug 225 seals the exhaust groove 221 and opens the air hole of the inner groove 222, allowing gas to be sprayed into the concrete through the rubber air nozzle 223 to assist in mixing. After the mixing is completed, the push ring 213 scrapes back and forth and works in conjunction with the air jet of the rubber air nozzle 223 to assist the material to be distributed through the material distribution pipe 13.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An energy-saving concrete mixing and placing device, comprising a mixing tank (11), a mixing shaft (12) mounted on the mixing tank (11), and a placing pipe (13) mounted on the bottom of the mixing tank (11), characterized in that: A mixing assembly is provided on the mixing tank (11). The mixing assembly includes a push ring (213). The push ring (213) is located inside the mixing tank (11) and can move back and forth linearly up and down inside the mixing tank (11). The top and bottom sides of the push ring (213) are both set as inclined surfaces. The outer ring surface of the push ring (213) is in tight sliding fit with the inner wall of the mixing tank (11). An equipment groove (214) is opened in the push ring (213). The equipment groove (214) rotates within the equipment groove (214). An inner ring (215) is connected, and multiple rotating plates (217) are uniformly fixedly connected to the inner surface of the inner ring (215). The inner ring (215) can rotate coaxially on the push ring (213). The rotation direction of the inner ring (215) and the rotating plates (217) is opposite to the stirring direction of the stirring shaft (12). An inner groove (222) is opened inside the push ring (213). Multiple rubber air nozzles (223) are fixedly connected to the bottom of the groove wall of the inner groove (222) in a ring shape.

2. The energy-saving concrete mixing and placing device according to claim 1, characterized in that: The mixing assembly also includes a support tube (21), which is fixedly connected to the outer wall of the mixing tank (11). An energy-saving motor (22) is fixedly connected to the bottom of the outer wall of the mixing tank (11). The output shaft of the energy-saving motor (22) faces upward and is fixedly connected to a reciprocating screw (23). The reciprocating screw (23) is located inside the support tube (21). The top end of the reciprocating screw (23) is rotatably connected to the top of the mixing tank (11). A guide plate (24) is slidably connected to the support tube (21). A retaining shaft (25) is rotatably connected to the guide plate (24). A connecting rod (26) is fixedly connected to the top surface of the guide plate (24). A support block (27) is fixedly connected to the top end of the connecting rod (26). A cavity is opened inside the support block (27). A fan (29) is rotatably connected inside the cavity of the support block (27). An energy-saving air pump (210) is installed on the top surface of (27). The pump end of the energy-saving air pump (210) is connected to the cavity of the support block (27). A support rod (28) is fixedly connected to the lower surface of the support block (27) away from the connecting rod (26). The bottom end of the support rod (28) is fixedly connected to the top surface of the push ring (213). An air inlet groove (211) is opened in the support rod (28). The air inlet groove (211) is connected to the cavity of the support block (27) and the inside of the equipment slot (214). A rotating rod (212) is fixedly connected to the bottom of the fan (29). The rotating rod (212) passes through the air inlet groove (211) and extends into the equipment slot (214). The bottom end of the rotating rod (212) is rotatably connected to the slot wall of the equipment slot (214). The air inlet groove (211) and the rotating rod (212) are in clearance fit.

3. The energy-saving concrete mixing and placing device according to claim 1, characterized in that: The mixing assembly also includes a synchronous belt (216) that is driven between the bottom end of the rotating rod (212) and the outer ring surface of the inner ring (215). A connecting shaft (218) is fixedly connected to the top surface of the push ring (213) away from the support rod (28). A connecting block (219) is fixedly connected to the top of the connecting shaft (218). A guide rod (220) is fixedly connected to the bottom of the connecting block (219) away from the connecting shaft (218). The guide rod (220) is slidably connected to the mixing tank (11). The connecting shaft (218) is... An exhaust groove (221) is provided, the top of which passes through a connecting block (219). The bottom of the exhaust groove (221) is connected to the inside of the equipment groove (214). An air hole is provided at the bottom of the wall of the equipment groove (214) corresponding to the position of the exhaust groove (221). The air hole is connected to the inside of the inner groove (222). An energy-saving electric push rod (224) is fixedly connected to the bottom of the wall of the equipment groove (214). The telescopic shaft end of the energy-saving electric push rod (224) faces upward and is fixedly connected to a rubber plug (225).

4. The energy-saving concrete mixing and placing device according to claim 2, characterized in that: The reciprocating screw (23) has a double spiral circulation groove with the beginning and end connected. The end of the retaining shaft (25) close to the reciprocating screw (23) is slidably connected to the thread groove of the reciprocating screw (23). The position where the double thread groove of the reciprocating screw (23) is connected is set as an arc transition groove to realize the reversal. The double thread groove of the reciprocating screw (23) is used to control the up and down sliding of the guide plate (24).

5. The energy-saving concrete mixing and placing device according to claim 2, characterized in that: The energy-saving air pump (210) is used to drive the fan (29) to rotate by spraying air. Since the rotating rod (212) and the air inlet groove (211) are in clearance fit, that is, there is a gap between the rotating rod (212) and the air inlet groove (211), the air sprayed by the energy-saving air pump (210) can enter the equipment groove (214) through the air inlet groove (211).

6. The energy-saving concrete mixing and placing device according to claim 3, characterized in that: The top and bottom ends of the rubber plug (225) are respectively inserted into the bottom groove of the exhaust groove (221) and the air hole of the inner groove (222). The rubber plug (225) is used to control the flow direction of the gas injected into the equipment groove (214) by the energy-saving air pump (210).

7. An energy-saving concrete mixing and placing process, characterized in that: The application of the energy-saving concrete mixing and placing device as described in claim 6 includes the following steps: Step 1: Initial preparation. Ensure the device is in its initial state. The push ring (213) is located at the top of the inner wall of the mixing tank (11), the guide plate (24) is located at the top of the support tube (21), the telescopic shaft of the energy-saving electric push rod (224) retracts, and the rubber plug (225) is inserted into the air hole of the inner groove (222) to achieve the sealing of the inner groove (222).

8. A method for assembling coils for transformer processing according to claim 7, characterized in that: Step 2: Injecting materials and starting basic mixing. Inject concrete materials into the mixing tank (11) and start the mixing shaft (12) to perform basic mixing and homogenization of the concrete in the mixing tank (11). Step 3: Start the reciprocating scraping function of the mixing component, drive the energy-saving motor (22) to run, drive the reciprocating screw (23) to rotate, and through the cooperation of the guide plate (24), connecting rod (26), support rod (28) and connecting shaft (218), drive the push ring (213) to move back and forth in a straight line in the mixing tank (11), scrape off the concrete attached to the inner wall of the mixing tank (11), and push the material to the mixing area of ​​the mixing shaft (12).

9. A method for assembling coils for transformer processing according to claim 7, characterized in that: Step 4: Start the bidirectional compound stirring, drive the energy-saving air pump (210) to run, spray high-speed airflow into the cavity of the support block (27), drive the fan (29) and the rotating rod (212) to rotate, and drive the inner ring (215) and the rotating plate (217) to rotate through the synchronous belt (216), which is opposite to the stirring direction of the stirring shaft (12) to form bidirectional compound stirring; Step 5: Airflow-assisted mixing and unloading. Drive the energy-saving electric push rod (224) to run according to the needs, so that the rubber plug (225) seals the exhaust groove (221) and opens the air hole of the inner groove (222), allowing the gas to be sprayed into the concrete through the rubber air nozzle (223) to assist in mixing. After the mixing is completed, the push ring (213) scrapes back and forth and works in conjunction with the air jet of the rubber air nozzle (223) to assist the material to be distributed through the distribution pipe (13).

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