Wet mixing equipment for concrete preparation

Abstract

This utility model discloses a wet mixing device for concrete preparation, belonging to the field of concrete preparation technology. The wet mixing device includes a mixing tank, a discharge port connected to the bottom of the mixing tank, and a valve installed on the discharge port. A cylindrical body with a through-type structure at both the top and bottom is fixedly connected to the bottom of the mixing tank's inner cavity. A feed port is opened at the bottom of the cylindrical body. A reduction motor is installed at the top of the mixing tank. A first shaft extending to the inner side of the cylindrical body is rotatably connected to the inner cavity of the mixing tank, and the top of the first shaft is drively connected to the power output end of the reduction motor. It uses first spiral blades to convey stones upwards and discharge them through the top opening of the cylindrical body, then stirs them again through a mixing rod. This cycle effectively mixes the stones thoroughly in the cement, ensuring the strength and quality of the concrete after pouring.

Description

Technical Field

[0001] This utility model relates to the field of concrete preparation technology, and more specifically, to a wet mixing device for concrete preparation. Background Technology

[0002] Concrete refers to artificial stone made by mixing cement as the main binder with water, sand, and gravel, and, if necessary, chemical admixtures and mineral admixtures, in appropriate proportions, and then using a wet mixing device to mix the proportioned raw materials, which are then uniformly mixed, compacted, and cured.

[0003] However, existing wet mixing equipment for concrete preparation uses a mixing paddle to mix the concrete mixture. Since the weight of the aggregate in the mixture is relatively large compared to other aggregates, and the mixing paddle cannot effectively mix the material at the bottom of the mixing tank, the aggregate is prone to depositing at the bottom of the mixing tank, affecting the quality and strength of the concrete. Therefore, we propose a proportioning wet mixing device for concrete preparation to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a wet mixing device for concrete preparation. It uses a first spiral blade to convey the stones upward and discharge them through the top opening of the cylinder. The stones are then stirred again by the mixing rod. This cycle can effectively mix the stones thoroughly in the cement, ensuring the strength and quality of the concrete after pouring.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A wet mixing device for concrete preparation includes a mixing tank, a discharge port connected to the bottom of the mixing tank, and a valve installed on the discharge port. The bottom of the inner cavity of the mixing tank is fixedly connected to a cylinder with a through-type structure at both the top and bottom. The bottom of the cylinder is provided with a feed port.

[0009] A geared motor is installed on the top of the mixing tank. A first shaft extending to the inner side of the cylinder is rotatably connected to the inner cavity of the mixing tank. The top end of the first shaft is connected to the power output end of the geared motor. A first spiral blade is welded to the outer wall of the inner side of the cylinder. A stirring rod fixedly connected to the first shaft and arranged in an L-shape is provided above the first spiral blade.

[0010] A feeding cylinder connected to the mixing tank is installed on one side of the geared motor. A hopper is connected to the side wall of the feeding cylinder. A second shaft is rotatably connected to the inner side of the feeding cylinder. A second helical blade is welded to the outer wall of the second shaft. A driven gear is installed at the bottom end of the second shaft. A driving gear that meshes with the driven gear is installed on the first shaft.

[0011] Furthermore, the driven gear and the driving gear are provided with baffles on their outer sides that are fixedly connected to the inner wall of the mixing tank;

[0012] The baffle is provided with an inclined surface at the part corresponding to the bottom opening of the feed cylinder.

[0013] Furthermore, dynamic seals are installed at the points where the first and second shafts meet the baffle.

[0014] Furthermore, multiple feed inlets are provided at radial positions on the cylinder.

[0015] Furthermore, the first shaft extends through the top of the mixing tank, and a dustproof bearing is installed at the junction of the first shaft and the top of the mixing tank.

[0016] The power output shaft of the geared motor is connected to the top end of the first shaft via a coupling.

[0017] Furthermore, the outer diameter of the first helical blade is adapted to the inner diameter of the cylinder, and the outer diameter of the second helical blade is adapted to the inner diameter of the feed cylinder.

[0018] Furthermore, a dustproof bearing is installed at the junction of the top of the second shaft and the top of the feed cylinder.

[0019] 3. Beneficial effects

[0020] Compared with existing technologies, the advantages of this utility model are:

[0021] (1) In this scheme, the first shaft drives the mixing rod to mix the raw materials, and at the same time drives the first spiral blade on the first shaft to rotate synchronously. When the stones in the wet cement are deposited to the bottom of the inner cavity of the mixing tank, they enter the inner side of the cylinder through the feed port. The first spiral blade is used to convey the stones upward and discharge them through the top opening of the cylinder. The mixing rod is used again to stir them. This cycle can effectively mix the stones fully in the cement and ensure the strength and quality of the concrete after pouring.

[0022] (2) In this scheme, the first shaft is driven to rotate by the reduction motor. The active gear and the driven gear mesh with each other, thereby driving the second shaft to rotate on the inner side of the feed cylinder, which in turn drives the second spiral blade to rotate synchronously. When the second spiral blade rotates, it can squeeze and crush the agglomerated raw material, avoid agglomeration and blockage, and can be smoothly discharged through the feed cylinder. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a side view of the mixing tank of this utility model;

[0025] Figure 3 This is a cross-sectional schematic diagram of the mixing tank AA of this utility model;

[0026] Figure 4 This is a schematic diagram of the cylindrical structure of this utility model;

[0027] Figure 5 This is an enlarged schematic diagram of part A of the present invention.

[0028] Explanation of the labels in the diagram:

[0029] 1. Mixing tank; 2. Discharge port; 3. Valve; 4. Cylinder; 5. Feed inlet; 6. Gear motor; 7. First shaft; 8. Stirring rod; 9. First spiral blade; 10. Feeding cylinder; 11. Hopper; 12. Second shaft; 13. Second spiral blade; 14. Driven gear; 15. Drive gear; 16. Baffle. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0031] Example:

[0032] Please see Figure 1-5 A wet mixing device for concrete preparation includes a mixing tank 1, a discharge port 2 connected to the bottom of the mixing tank 1, and a valve 3 installed on the discharge port 2. A cylinder 4 with a conductive structure at both the top and bottom is fixedly connected to the bottom of the inner cavity of the mixing tank 1. A feed port 5 is opened at the bottom of the cylinder 4.

[0033] A geared motor 6 is installed on the top of the mixing tank 1. The inner cavity of the mixing tank 1 is rotatably connected to a first shaft 7 extending to the inner side of the cylinder 4. The top end of the first shaft 7 is connected to the power output end of the geared motor 6. A first spiral blade 9 is welded to the outer wall of the first shaft 7 located inside the cylinder 4. A stirring rod 8 is fixedly connected to the first shaft 7 and arranged in an L-shaped structure above the first spiral blade 9.

[0034] A feeding cylinder 10 is installed on one side of the geared motor 6 and is connected to the mixing tank 1. A hopper 11 is connected to the side wall of the feeding cylinder 10. A second shaft 12 is rotatably connected to the inner side of the feeding cylinder 10. A second spiral blade 13 is welded to the outer wall of the second shaft 12. A driven gear 14 is installed at the bottom end of the second shaft 12. A driving gear 15 that meshes with the driven gear 14 is installed on the first shaft 7.

[0035] It should be noted that when using this wet mixing device for concrete preparation, the geared motor 6 is started, and then sand, gravel, cement and water are added to the mixing tank 1 in proportion through the hopper 11 and the feeding cylinder 10. The first shaft 7 is driven by the geared motor 6 to rotate, and the active gear 15 and the driven gear 14 mesh, thereby driving the second shaft 12 to rotate inside the feeding cylinder 10, which in turn drives the second spiral blade 13 to rotate synchronously. When the second spiral blade 13 rotates, it can squeeze and crush the lumpy raw materials, avoid lumps causing blockage, and discharge them smoothly through the feeding cylinder 10.

[0036] The first shaft 7 drives the mixing rod 8 to mix the raw materials, and at the same time drives the first spiral blade 9 on the first shaft 7 to rotate synchronously. After the stones in the wet cement are deposited to the bottom of the inner cavity of the mixing tank 1, they enter the inner side of the cylinder 4 through the feed port 5. The first spiral blade 9 is used to convey the stones upward and discharge them through the top opening of the cylinder 4. The mixing is carried out again by the mixing rod 8. This cycle can effectively mix the stones in the cement, ensuring the strength and quality of the concrete after pouring. Finally, the mixed wet concrete is discharged through the discharge port 2 by opening the valve 3.

[0037] like Figure 3 , Figure 5 As shown, a baffle 16 is provided on the outer side of the driven gear 14 and the driving gear 15, which is fixedly connected to the inner wall of the mixing tank 1.

[0038] The baffle 16 is provided with an inclined surface at the bottom opening of the feed cylinder 10, and dynamic sealing elements are installed at the joints of the first shaft 7 and the second shaft 12 with the baffle 16.

[0039] It should be noted that by setting baffle 16 to protect the driving gear 15 and driven gear 14, cement is prevented from splashing onto the driving gear 15 and driven gear 14 and causing them to wear, which can effectively improve the service life of the driving gear 15 and driven gear 14.

[0040] like Figure 4 As shown, multiple feed inlets 5 are provided in the radial position of the cylinder 4;

[0041] It should be noted that by setting multiple feed inlets 5, the efficiency of stones entering the inner side of the cylinder 4 can be effectively improved.

[0042] like Figure 3 As shown, the first shaft 7 passes through the top of the mixing tank 1, and a dustproof bearing is installed at the part where the first shaft 7 is joined to the top of the mixing tank 1.

[0043] The power output shaft of the geared motor 6 is connected to the top of the first shaft 7 via a coupling;

[0044] It should be noted that this ensures the rotational accuracy of the first shaft 7, while also ensuring that the power of the geared motor 6 can be transmitted normally to the first shaft 7.

[0045] like Figure 3 As shown, the outer diameter of the first helical blade 9 is matched with the inner diameter of the cylinder 4, and the outer diameter of the second helical blade 13 is matched with the inner diameter of the feed cylinder 10.

[0046] It should be noted that normal material delivery can be guaranteed.

[0047] like Figure 3 As shown, a dustproof bearing is installed at the part where the top of the second shaft 12 meets the top of the feed cylinder 10;

[0048] It should be noted that this reduces the resistance during the rotation of the second shaft 12 and ensures the rotational accuracy of the second shaft 12.

[0049] In use: Start the geared motor 6, and then add sand, gravel, cement and water to the mixing tank 1 in proportion through the hopper 11 and the feeding cylinder 10. Driven by the geared motor 6, the first shaft 7 rotates, and the active gear 15 meshes with the driven gear 14, thereby driving the second shaft 12 to rotate inside the feeding cylinder 10, which in turn drives the second spiral blade 13 to rotate synchronously. When the second spiral blade 13 rotates, it can squeeze and crush the agglomerated raw materials, avoid agglomeration and blockage, and can be smoothly discharged through the feeding cylinder 10.

[0050] The first shaft 7 drives the mixing rod 8 to mix the raw materials, and at the same time drives the first spiral blade 9 on the first shaft 7 to rotate synchronously. After the stones in the wet cement are deposited to the bottom of the inner cavity of the mixing tank 1, they enter the inner side of the cylinder 4 through the feed port 5. The first spiral blade 9 is used to convey the stones upward and discharge them through the top opening of the cylinder 4. The mixing is carried out again by the mixing rod 8. This cycle can effectively mix the stones fully in the cement. Finally, the mixed wet concrete is discharged through the discharge port 2 by opening the valve 3.

[0051] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A wet mixing apparatus for preparing concrete, comprising a mixing tank (1), a discharge port (2) connected to the bottom of the mixing tank (1), and a valve (3) installed on the discharge port (2), characterized in that: The bottom of the inner cavity of the mixing tank (1) is fixedly connected to a cylindrical body (4) with both the top and bottom ends having a conductive structure, and the bottom end of the cylindrical body (4) is provided with a feed inlet (5); A geared motor (6) is installed on the top of the mixing tank (1). A first shaft (7) extending to the inner side of the cylinder (4) is rotatably connected to the inner cavity of the mixing tank (1). The top end of the first shaft (7) is connected to the power output end of the geared motor (6). A first spiral blade (9) is welded to the outer wall of the inner side of the cylinder (4) of the first shaft (7). A stirring rod (8) fixedly connected to the first shaft (7) and arranged in an L-shaped structure is provided above the first spiral blade (9). A feeding cylinder (10) connected to the mixing tank (1) is installed on one side of the geared motor (6). A hopper (11) is connected to the side wall of the feeding cylinder (10). A second shaft (12) is rotatably connected to the inner side of the feeding cylinder (10). A second spiral blade (13) is welded to the outer wall of the second shaft (12). A driven gear (14) is installed at the bottom end of the second shaft (12). A driving gear (15) meshing with the driven gear (14) is installed on the first shaft (7).

2. The proportioning wet mixing device for the preparation of concrete according to claim 1, characterized in that: The driven gear (14) and the driving gear (15) are provided with baffles (16) that are fixedly connected to the inner wall of the mixing tank (1); The baffle (16) has an inclined surface at the part corresponding to the bottom opening of the feed cylinder (10).

3. The proportioning wet mixing device for the preparation of concrete according to claim 2, characterized in that: Dynamic seals are installed at the points where the first shaft (7) and the second shaft (12) meet the baffle (16).

4. The apparatus for preparing proportioning wet mixing of concrete according to claim 1, wherein: Multiple feed inlets (5) are provided at radial positions on the cylinder (4).

5. The apparatus for preparing proportioning wet mixing of concrete according to claim 1, wherein: The first shaft (7) passes through the top of the mixing tank (1), and a dustproof bearing is installed at the part where the first shaft (7) and the top of the mixing tank (1) are joined. The power output shaft of the geared motor (6) is connected to the top end of the first shaft (7) via a coupling.

6. The apparatus for preparing proportioning wet mixing of concrete according to claim 1, wherein: The outer diameter of the first helical blade (9) is adapted to the inner diameter of the cylinder (4), and the outer diameter of the second helical blade (13) is adapted to the inner diameter of the feed cylinder (10).

7. The apparatus for preparing proportioning wet mixing of concrete according to claim 1, wherein: A dustproof bearing is installed at the point where the top of the second shaft (12) meets the top of the feed cylinder (10).

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