Cement grinding aid feeding and mixing device

Abstract

The utility model discloses a cement grinding aid feeding and mixing device. The cement grinding aid feeding and mixing device comprises a mixing tank body and a first driving motor, the cement grinding aid raw material mixing device has the beneficial effects that cement grinding aid raw materials are put into the mixing tank body, then the first driving motor and the second driving motor are started, the first driving motor drives the main shaft to rotate to mix the cement grinding aid raw materials, and meanwhile, the second driving motor drives the side shaft and the shaft pipe to rotate to drive the mixing tank body to turn over, so that the turning efficiency of the cement grinding aid raw materials is improved; compared with traditional shaking and upside-down overturning, the cement grinding aid raw material overturning efficiency is higher, the mixing speed and efficiency are further improved, when the shaft pipe rotates, the input end of the electric slip ring is fixed and connected with an external power source, the output end of the electric slip ring rotates along with the shaft pipe, and a connecting wire connected with the output end of the electric slip ring penetrates through the interior of the shaft pipe; the other end of the connecting wire is connected with the first driving motor, so that the first driving motor continuously supplies power while rotating, and continuous overturning and stirring are completed.

Description

Technical Field

[0001] This utility model relates to the field of cement grinding aid production technology, specifically to a cement grinding aid feeding and mixing device. Background Technology

[0002] Common cement grinding aids come in two forms: liquid and powder (solid). Both can significantly increase mill output, improve product quality, or reduce grinding power consumption. In the wet grinding process, cement grinding aids are also known as dispersants.

[0003] A search revealed application CN202121395632.4, entitled "A Cement Grinding Aid Feeding and Mixing Device." This application proposes a method for mixing liquid cement grinding aids by adding powdered substances with grinding-aiding functions to the mother liquor of the powdered grinding aid for stirring. Typically, such feeding and mixing devices include a stirring device inside the mixing vessel and a device on the outside of the mixing vessel to drive it to oscillate and ensure thorough mixing of the materials. Commonly, the external oscillation device uses a cylinder structure to drive the mixing vessel to oscillate; however, this method suffers from high cylinder replacement frequency and short service life. This application addresses the problem by employing a mechanically driven oscillation method... Compared to cylinder-driven methods, the oscillation mechanism of the mixing vessel has a longer service life and lower maintenance frequency. The oscillation motor drives the transmission main shaft to rotate, which in turn drives the universal joint mounted on the U-shaped plate to oscillate via the transmission secondary shaft. This, in turn, drives the oscillation plate and swing rod connected to the universal joint to oscillate, thus enabling the oscillation of the mixing vessel around the support frame. Multiple locking holes on the oscillation plate allow control of the swing rod's mounting position and oscillation amplitude. However, simple oscillation still results in low efficiency in agitating the materials inside the vessel, and further improvements are possible. Furthermore, the stirring structure of this application is relatively simple, and the stirring coverage area can be further expanded.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a cement grinding aid feeding and mixing device, which has the advantage of high mixing efficiency, thereby solving the problems mentioned in the background technology.

[0007] (II) Technical Solution

[0008] To achieve the aforementioned advantage of high mixing efficiency, the specific technical solution adopted by this utility model is as follows:

[0009] A cement grinding aid feeding and mixing device includes a mixing tank and a first drive motor. The first drive motor is fixedly installed on the top surface of the mixing tank, and a main shaft is installed at the output end of the first drive motor. A stirring frame is fixedly connected to the surface of the main shaft inside the mixing tank. An upper stirring rod and a lower stirring rod are fixedly installed at the top and bottom of the stirring frame, respectively. Side shafts and shaft tubes are fixedly installed on the two side surfaces of the mixing tank, respectively. Supports are provided on both sides of the mixing tank, and the side shafts and shaft tubes pass through the supports and are rotatably connected to the supports. A second drive motor is fixedly installed on one side surface of the support through a motor frame, and the output end of the second drive motor is fixedly connected to the other end of the side shaft. An electric slip ring is fixedly connected to the other end of the shaft tube, and the output end of the electric slip ring is electrically connected to the input end of the first drive motor through a connecting wire.

[0010] Furthermore, a hopper is connected through the top surface of the mixing tank, and a top cover is threaded onto the top opening of the hopper.

[0011] Furthermore, a discharge pipe is connected through the bottom surface of the mixing tank, and a gate valve is installed on the surface of the discharge pipe.

[0012] Furthermore, the side shaft and the shaft tube are arranged coaxially, and both the side shaft and the shaft tube are rotatably connected to the bracket through bearings.

[0013] Furthermore, a through hole is provided on the surface of the shaft tube, through which the connecting wire passes.

[0014] Furthermore, the other end of the slip ring is electrically connected to a power supply line, and the slip ring is arranged coaxially with the shaft tube.

[0015] Furthermore, a central stirring rod is fixedly installed on the inner side wall of the stirring frame.

[0016] Furthermore, the outer wall of the stirring frame slides against the mixing tank.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a cement grinding aid feeding and mixing device, which has the following beneficial effects:

[0019] (1) This utility model adopts a first drive motor, a second drive motor and an electric slip ring. When mixing cement grinding aid, the cement grinding aid raw material can be put into the mixing tank. Then, the first drive motor and the second drive motor are started. The first drive motor drives the main shaft to rotate and mix the cement grinding aid raw material. At the same time, the second drive motor drives the side shaft and shaft tube to rotate and drive the mixing tank to turn over, thereby improving the turning efficiency of the cement grinding aid raw material. Compared with the traditional shaking, the turning efficiency of the cement grinding aid raw material is higher by turning it upside down, thereby improving the mixing speed and efficiency. When the shaft tube rotates, the input end of the electric slip ring does not move. The input end of the electric slip ring is connected to the external power supply. The output end of the electric slip ring follows the rotation of the shaft tube. A connecting wire connected to the output end of the electric slip ring is passed through the shaft tube. The other end of the connecting wire is connected to the first drive motor, so that the first drive motor continuously supplies power while rotating, thereby completing continuous turning and stirring.

[0020] (2) This utility model adopts a stirring frame, an upper stirring rod, a middle stirring rod and a lower stirring rod. The main shaft drives the stirring frame to rotate. At the same time, the stirring frame rotates and drives the upper stirring rod, the lower stirring rod and the middle stirring rod to rotate. The cement grinding aid raw materials in various positions inside the mixing tank are fully stirred and mixed. The stirring and mixing range is wide and the working efficiency is improved. At the same time, the outside of the stirring frame slides against the inner wall of the mixing tank to avoid the raw materials from adhering, which further improves the stirring efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the internal structure of a cement grinding aid feeding and mixing device proposed in this utility model;

[0023] Figure 2 This is a front view of a cement grinding aid feeding and mixing device proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the external structure of a cement grinding aid feeding and mixing device proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the stirring frame proposed in this utility model.

[0026] In the picture:

[0027] 1. Mixing tank; 2. First drive motor; 3. Main shaft; 4. Stirring frame; 5. Upper stirring rod; 6. Middle stirring rod; 7. Lower stirring rod; 8. Discharge pipe; 9. Slide valve; 10. Motor frame; 11. Second drive motor; 12. Side shaft; 13. Hopper; 14. Top cover; 15. Shaft tube; 16. Electric slip ring; 17. Connecting wire; 18. Support. Detailed Implementation

[0028] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0029] According to an embodiment of the present invention, a cement grinding aid feeding and mixing device is provided.

[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, a cement grinding aid feeding and mixing device according to an embodiment of the present invention includes a mixing tank 1 and a first drive motor 2. The first drive motor 2 is fixedly installed on the top surface of the mixing tank 1. The first drive motor 2, the main shaft 3, and the mixing tank 1 are arranged coaxially. The output end of the first drive motor 2 is installed on the main shaft 3. A stirring frame 4 is fixedly connected to the surface of the main shaft 3 inside the mixing tank 1. An upper stirring rod 5 and a lower stirring rod 7 are fixedly installed at the top and bottom of the stirring frame 4, respectively. Side shafts 12 and shaft tubes 15 are fixedly installed on the two side surfaces of the mixing tank 1, respectively. A bracket 18 is provided on both sides of the mixing tank 1. The side shafts 12 and shaft tubes 15 pass through the brackets 18 and are rotatably connected to the brackets 18. A second drive motor 11 is fixedly installed on one side surface of the bracket 18 through a motor frame 10. The output end of the second drive motor 11 is fixedly connected to the other end of the side shaft 12. An electric slip ring 16 is fixedly connected to the other end of the shaft tube 15. The output end of the electric slip ring 16 is connected to a connecting wire. 17 is electrically connected to the input terminal of the first drive motor 2. When mixing cement grinding aid, the cement grinding aid raw material can be put into the mixing tank 1. Then, the first drive motor 2 and the second drive motor 11 are started. The first drive motor 2 drives the main shaft 3 to rotate and mix the cement grinding aid raw material. At the same time, the second drive motor 11 drives the side shaft 12 and the shaft tube 15 to rotate, causing the mixing tank 1 to tumble, improving the tumbling efficiency of the cement grinding aid raw material. Compared with the traditional shaking, the tumbling efficiency of the cement grinding aid raw material is higher by flipping up and down, thereby improving the mixing speed and efficiency. When the shaft tube 15 rotates, the input terminal of the electric slip ring 16 does not move. The input terminal of the electric slip ring 16 is connected to the external power supply. The output terminal of the electric slip ring 16 follows the rotation of the shaft tube 15. A connecting wire 17 connected to the output terminal of the electric slip ring 16 is passed through the shaft tube 15. The other end of the connecting wire 17 is connected to the first drive motor 2, so that the first drive motor 2 is continuously powered while rotating, completing continuous tumbling and stirring.

[0031] In one embodiment, a hopper 13 is connected through the top surface of the mixing tank 1, and a top cover 14 is threaded onto the top opening of the hopper 13. The top cover 14 is used to close the hopper 13, and the hopper 13 facilitates feeding.

[0032] In one embodiment, a discharge pipe 8 is connected through the bottom surface of the mixing tank 1, and a gate valve 9 is installed on the surface of the discharge pipe 8 to facilitate discharge.

[0033] In one embodiment, the side shaft 12 and the shaft tube 15 are arranged coaxially, and both the side shaft 12 and the shaft tube 15 are rotatably connected to the bracket 18 through bearings, and the central axis of the side shaft 12 and the shaft tube 15 intersects the central axis of the main shaft 3 perpendicularly.

[0034] In one embodiment, a through hole is provided on the surface of the shaft tube 15, through which the connecting wire 17 passes to facilitate its exit. The connecting wire 17 located on the outside of the shaft tube 15 is fixedly connected to the outer wall of the mixing tank 1 to prevent shaking.

[0035] In one embodiment, the other end of the slip ring 16 is electrically connected to a power supply line, and the slip ring 16 is arranged coaxially with the shaft tube 15. The slip ring 16 is a common rotating power supply structure, which will not be described in detail here.

[0036] In one embodiment, a central stirring rod 6 is fixedly installed on the inner side wall of the stirring frame 4, which is a common stirring structure.

[0037] In one embodiment, the outer wall of the mixing frame 4 slides against the mixing tank 1, and the main shaft 3 drives the mixing frame 4 to rotate. While the mixing frame 4 rotates, it also drives the upper mixing rod 5, the lower mixing rod 7 and the middle mixing rod 6 to rotate, so as to fully mix the cement grinding aid raw materials in various positions inside the mixing tank 1. The mixing range is wide and the working efficiency is improved. At the same time, the outer wall of the mixing frame 4 slides against the inner wall of the mixing tank 1 to avoid the raw materials from adhering, which further improves the mixing efficiency.

[0038] Working principle:

[0039] When mixing cement grinding aid, the raw materials for the cement grinding aid can be added to the mixing tank 1. Then, the first drive motor 2 and the second drive motor 11 are started. The first drive motor 2 drives the main shaft 3 to rotate, mixing the cement grinding aid raw materials. At the same time, the second drive motor 11 drives the side shaft 12 and the shaft tube 15 to rotate, causing the mixing tank 1 to tumble, improving the tumbling efficiency of the cement grinding aid raw materials. Compared with traditional shaking, the up-and-down tumbling method is more efficient in tumbling the cement grinding aid raw materials, thereby improving the mixing speed and efficiency. When the shaft tube 15 rotates, the input end of the electric slip ring 16 remains stationary, and the input end of the electric slip ring 16 is connected to an external power supply. The output end of the electric slip ring 16 rotates with the shaft tube 15. A connecting wire 17, which connects to the output end of the electric slip ring 16, is inserted inside the shaft tube 15. The other end of the connecting wire 17 is connected to the first drive motor 2, so that the first drive motor 2 continuously supplies power while rotating, completing continuous tumbling and stirring. At the same time, the rotation of the stirring frame 4 drives the upper stirring rod 5, the lower stirring rod 7 and the middle stirring rod 6 to rotate, so as to fully stir and mix the cement grinding aid raw materials in various positions inside the mixing tank 1. The stirring and mixing range is wide, which improves the working efficiency. At the same time, the outside of the stirring frame 4 slides against the inner wall of the mixing tank 1 to avoid the material from adhering, which further improves the stirring efficiency.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cement grinding aid feeding and mixing device, characterized in that, The mixture includes a mixing tank (1) and a first drive motor (2). The first drive motor (2) is fixedly installed on the top surface of the mixing tank (1), and a main shaft (3) is installed at the output end of the first drive motor (2). A stirring frame (4) is fixedly connected to the surface of the main shaft (3) inside the mixing tank (1). An upper stirring rod (5) and a lower stirring rod (7) are fixedly installed at the top and bottom of the stirring frame (4), respectively. Side shafts (12) and shaft tubes (15) are fixedly installed on the two sides of the mixing tank (1), respectively. Both sides are supported by brackets (18), and the side shaft (12) and shaft tube (15) pass through the brackets (18) and are rotatably connected to the brackets (18). A second drive motor (11) is fixedly installed on one side surface of the bracket (18) through a motor frame (10), and the output end of the second drive motor (11) is fixedly connected to the other end of the side shaft (12). An electric slip ring (16) is fixedly connected to the other end of the shaft tube (15), and the output end of the electric slip ring (16) is electrically connected to the input end of the first drive motor (2) through a connecting line (17).

2. The cement grinding aid feeding and mixing device according to claim 1, characterized in that, The mixing tank (1) has a hopper (13) that is connected through to the top surface, and the top opening of the hopper (13) is threaded with a top cover (14).

3. The cement grinding aid feeding and mixing device according to claim 1, characterized in that, The bottom surface of the mixing tank (1) is connected to a discharge pipe (8), and a slide valve (9) is installed on the surface of the discharge pipe (8).

4. The cement grinding aid feeding and mixing device according to claim 1, characterized in that, The side shaft (12) and the shaft tube (15) are arranged coaxially, and both the side shaft (12) and the shaft tube (15) are rotatably connected to the bracket (18) through bearings.

5. The cement grinding aid feeding and mixing device according to claim 1, characterized in that, The shaft tube (15) has a through hole on its surface, and the connecting wire (17) passes through the through hole.

6. The cement grinding aid feeding and mixing device according to claim 1, characterized in that, The other end of the electric slip ring (16) is electrically connected to a power line, and the electric slip ring (16) is arranged coaxially with the shaft tube (15).

7. The cement grinding aid feeding and mixing device according to claim 1, characterized in that, The stirring frame (4) has a central stirring rod (6) fixedly installed on its inner side wall.

8. The cement grinding aid feeding and mixing device according to claim 1, characterized in that, The outer wall of the stirring frame (4) slides against the mixing tank (1).

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