Mixing and stirring device for materials with different particle sizes

Abstract

The utility model discloses a mixing and stirring device for materials with different particle sizes, which comprises a stirring barrel, a stirring structure capable of mixing the materials is arranged in the stirring barrel, a conveying structure capable of conveying the materials is arranged on the surface of the stirring barrel, and the stirring structure is composed of a material mixing assembly and a stirring assembly. The stirring assembly comprises a connecting shaft rotationally mounted on the inner bottom wall of the stirring barrel, a spiral twisted blade and a [-shaped stirring rod are fixedly mounted on the surface of the connecting shaft, the mixing assembly comprises a first conical plate and a second conical plate which are fixedly mounted on the inner wall of the stirring barrel, and a leakage hole is formed in the center of the first conical plate; and a plurality of leakage grooves are formed in the outer diameter surface of the second conical plate. Compared with the prior art, the device has the advantages that cement, gravel and aggregate with different particle sizes can be preliminarily mixed through the mixing assembly, layering of the cement, the gravel and the aggregate is avoided, and then the cement, the gravel and the aggregate are stirred again through the stirring assembly, so that the stirring efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixing, in particular to a mixing and stirring device for materials with different particle sizes. Background Art

[0002] Chinese patent announcement number CN216803952U discloses a concrete mixing device. The present application comprises a bracket, a mixing barrel is mounted on the upper surface of the bracket, a feeding port is mounted on the arc surface of the mixing barrel, three mixing blades are mounted on the inner wall of the mixing barrel, a cleaning structure is provided on the surface of the mixing blade, and the cleaning structure comprises two tooth plates, the lower surfaces of the two tooth plates are fixedly connected to the mixing blades, a slide plate is slidably inserted on the surface of the mixing blades, a handle is fixedly connected to the upper surface of the slide plate, a scraper is fixedly connected to the side of the slide plate away from the mixing blades, two C-shaped plates are fixedly connected to the side of the slide plate away from the handle, and the surfaces of the two C-shaped plates are both rotatably connected to a rotating shaft. The present invention solves the problem that after a long period of use of a traditional mixing device, concrete will adhere to the inner wall of the mixing barrel, which not only causes waste of concrete, but also affects the normal mixing of concrete by the mixing device.

[0003] However, the device has the following defects when in use: after the cement, sand and aggregate are put into the mixing drum one by one, the cement, sand and aggregate with different particle sizes will be separated into layers, so it is difficult to quickly mix the cement, sand and aggregate evenly. To this end, we propose a mixing device for materials with different particle sizes. Utility Model Content

[0004] The purpose of the utility model is to provide a device for mixing and stirring materials with different particle sizes to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mixing and stirring device for materials of different particle sizes, comprising a mixing drum, wherein a stirring structure capable of mixing materials is arranged inside the mixing drum, and a conveying structure capable of conveying materials is arranged on the surface of the mixing drum;

[0007] The stirring structure is composed of a mixing component and a stirring component. The stirring component includes a connecting shaft rotatably mounted on the bottom wall of the stirring drum, and a spiral blade and a U-shaped stirring rod are fixedly mounted on the surface of the connecting shaft;

[0008] The mixing assembly comprises a first conical plate and a second conical plate respectively fixedly mounted on the inner wall of the mixing drum, wherein a material leakage hole is provided at the center of the first conical plate, and a plurality of material leakage grooves are provided on the outer diameter surface of the second conical plate;

[0009] The conveying structure includes three feeding cylinders respectively arranged on the surface of the mixing drum. A first motor is fixedly installed at the lower end of the feeding cylinder, and a spiral auger is fixedly installed at the output end of the first motor. Three insertion pipes are respectively communicated with the surface of the mixing drum, and flow control valves are arranged on the surfaces of the three insertion pipes.

[0010] Preferably, a feeding port is arranged on the surface of the feeding cylinder, and the spiral auger is rotationally connected with the inner wall of the feeding cylinder.

[0011] Preferably, the discharging end of the feeding cylinder is inserted into one end of the insertion pipe.

[0012] Preferably, a second motor is fixedly installed at the lower end of the mixing drum, and the output end of the second motor is fixedly connected with the lower end of the connecting shaft.

[0013] Preferably, the central axis of the spiral blade coincides with the central axis of the connecting shaft. The number of U-shaped stirring rods is three, and the three U-shaped stirring rods are arranged in a circumferential array on the surface of the connecting shaft.

[0014] Preferably, a dust-proof cover is fixedly installed at the upper end of the mixing drum through bolts, and one end of the insertion pipe away from the feeding cylinder extends into the mixing drum.

[0015] Preferably, a water injection pipe is communicated with the surface of the mixing drum, and the water injection pipe is connected with an external water pump.

[0016] The utility model has the following advantages compared with the prior art:

[0017] 1. By setting the mixing structure, the utility model can respectively convey cement, sand and gravel and aggregates into the mixing drum by using the conveying structure. When the cement, sand and gravel and aggregates enter the mixing drum, the cement, sand and gravel and aggregates will be preliminarily mixed by the mixing component, and then fall onto the inner bottom wall of the mixing drum, and the mixing component is used to mix the cement, sand and gravel and aggregates again. Compared with the prior art, the device can preliminarily mix cement, sand and gravel and aggregates with different particle sizes by using the mixing component, avoiding stratification of cement, sand and gravel and aggregates, and then using the mixing component to stir them again, thereby improving the mixing efficiency.

[0018] 2. By setting the conveying structure, when the first motor works, the spiral auger is used to convey the materials into the insertion pipe, and then the flow control valve can control the flow rate of cement, sand and gravel and aggregates entering the mixing drum, so as to accurately proportion the cement, sand and gravel and aggregates. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional structural schematic diagram proposed for the utility model;

[0020] Figure 2Schematic diagram of the front sectional structure of the mixing drum proposed for the utility model;

[0021] Figure 3 Schematic diagram of the top view structure of the second conical plate proposed for the utility model;

[0022] Figure 4 Schematic diagram of the top view structure of the mixing assembly proposed for the utility model.

[0023] In the figure: 1 mixing drum, 2 connecting shaft, 3 spiral blade, 4 U-shaped mixing rod, 5 feeding cylinder, 6 first motor, 7 spiral auger, 8 insertion pipe, 9 flow control valve, 10 second motor, 11 dust cover, 12 water injection pipe, 13 first conical plate, 14 second conical plate, 15 material leakage hole, 16 material leakage groove. Specific implementation manner

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0026] Refer to Figure 1-4 , a mixing and stirring device for materials with different particle sizes, including a mixing drum 1. A conveying structure for conveying materials is arranged on the surface of the mixing drum 1. The conveying structure includes three feeding cylinders 5 respectively arranged on the surface of the mixing drum 1. A first motor 6 is fixedly installed at the lower end of the feeding cylinder 5. A spiral auger 7 is fixedly installed at the output end of the first motor 6. A feeding port is arranged on the surface of the feeding cylinder 5, and the spiral auger 7 is rotatably connected to the inner wall of the feeding cylinder 5.

[0027] The surface of the mixing drum 1 is respectively communicated with three inserting pipes 8. The discharging end of the feeding cylinder 5 is inserted into one end of the inserting pipe 8, and the end of the inserting pipe 8 far away from the feeding cylinder 5 extends into the mixing drum 1. Flow control valves 9 are arranged on the surfaces of the three inserting pipes 8. Driving the first motor 6 can drive the spiral auger 7 to rotate, so that cement, sand and gravel and aggregates can respectively enter the feeding cylinder 5 along the feeding ports on the three feeding cylinders 5. Then, the spiral auger 7 can respectively convey the cement, sand and gravel and aggregates into the three inserting pipes 8. After that, the flow control valves 9 can control the flow rates of the cement, sand and gravel and aggregates entering the mixing drum 1, so as to accurately proportion the cement, sand and gravel and aggregates.

[0028] A mixing structure for mixing materials is arranged inside the mixing drum 1. The mixing structure is composed of a mixing component and a stirring component. The mixing component includes a first conical plate 13 and a second conical plate 14 respectively and fixedly installed on the inner wall of the mixing drum 1. A leakage hole 15 is opened at the center of the first conical plate 13, and a plurality of leakage grooves 16 are opened on the outer diameter surface of the second conical plate 14.

[0029] After the cement, sand and gravel and aggregates enter the mixing drum 1, the cement, sand and gravel and aggregates will fall onto the first conical plate 13, so that the cement, sand and gravel and aggregates are mixed and then fall onto the second conical plate 14 along the leakage hole 15. After that, the mixed cement, sand and gravel and aggregates are scattered into multiple strands and fall onto the inner bottom wall of the mixing drum 1 along the plurality of leakage grooves 16.

[0030] The stirring component includes a connecting shaft 2 rotatably installed on the inner bottom wall of the mixing drum 1. Spiral blades 3 and U-shaped stirring rods 4 are respectively and fixedly installed on the surface of the connecting shaft 2. A second motor 10 is fixedly installed at the lower end of the mixing drum 1, and the output end of the second motor 10 is fixedly connected to the lower end of the connecting shaft 2.

[0031] The central axis of the spiral blade 3 coincides with the central axis of the connecting shaft 2. The number of the U-shaped stirring rods 4 is three, and the three U-shaped stirring rods 4 are arranged in a circumferential array on the surface of the connecting shaft 2. When the cement, sand and gravel and aggregates fall onto the inner bottom wall of the mixing drum 1, at this time, driving the second motor 10 can drive the stirring component to rotate. The rotating spiral blade 3 can stir the cement, sand and gravel and aggregates in the middle of the mixing drum 1, and the rotating U-shaped stirring rods 4 can stir the cement, sand and gravel and aggregates at the edge position of the mixing drum 1.

[0032] A water injection pipe 12 is communicated with the surface of the mixing drum 1. The water injection pipe 12 is connected to an external water pump. A dust-proof cover 11 is fixedly installed at the upper end of the mixing drum 1 through bolts. The dust-proof cover 11 can be used to prevent a large amount of dust from flying during the mixing of materials.

[0033] Compared with the existing technology, the device can use the mixing component to preliminarily mix cement, sand and aggregate of different particle sizes, avoiding stratification of cement, sand and aggregate, and then use the stirring component to stir them again, thereby improving the stirring efficiency.

[0034] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for mixing and stirring materials of different particle sizes, comprising a mixing drum (1), characterized in that: Inside the mixing drum (1), there is a mixing structure for mixing materials, and on the surface of the mixing drum (1), there is a conveying structure for conveying materials; The mixing structure is composed of a material mixing component and a stirring component. The stirring component includes a connecting shaft (2) rotatably installed on the inner bottom wall of the mixing drum (1). On the surface of the connecting shaft (2), a spiral blade (3) and a U-shaped stirring rod (4) are respectively fixedly installed; The material mixing component includes a first conical plate (13) and a second conical plate (14) respectively fixedly installed on the inner wall of the mixing drum (1). A material leakage hole (15) is provided at the center of the first conical plate (13), and a plurality of material leakage grooves (16) are provided on the outer diameter surface of the second conical plate (14); The conveying structure includes three feeding cylinders (5) respectively arranged on the surface of the mixing drum (1). A first motor (6) is fixedly installed at the lower end of the feeding cylinder (5). The output end of the first motor (6) is fixedly installed with a screw auger (7). Three insertion pipes (8) are respectively communicated with the surface of the mixing drum (1). Flow control valves (9) are arranged on the surfaces of the three insertion pipes (8).

2. The device for mixing and stirring materials of different particle sizes according to claim 1, characterized in that: A feeding port is arranged on the surface of the feeding cylinder (5), and the screw auger (7) is rotatably connected to the inner wall of the feeding cylinder (5).

3. The device for mixing and stirring materials of different particle sizes according to claim 1, characterized in that: The discharging end of the feeding cylinder (5) is inserted into one end of the insertion pipe (8).

4. The device for mixing and stirring materials of different particle sizes according to claim 1, characterized in that: A second motor (10) is fixedly installed at the lower end of the mixing drum (1), and the output end of the second motor (10) is fixedly connected to the lower end of the connecting shaft (2).

5. The device for mixing and stirring materials of different particle sizes according to claim 1, characterized in that: The central axis of the spiral blade (3) coincides with the central axis of the connecting shaft (2). The number of U-shaped stirring rods (4) is three, and the three U-shaped stirring rods (4) are arranged in a circular array on the surface of the connecting shaft (2).

6. The device for mixing and stirring materials of different particle sizes according to claim 1, characterized in that: A dust-proof cover (11) is fixedly installed at the upper end of the mixing drum (1) through bolts, and the end of the insertion pipe (8) far from the feeding cylinder (5) extends into the mixing drum (1).

7. The device for mixing and stirring materials of different particle sizes according to claim 1, characterized in that: A water injection pipe (12) is communicated with the surface of the mixing drum (1), and the water injection pipe (12) is connected to an external water pump.

Images