Double-shaft mixer for producing concrete

Abstract

The utility model provides a double-shaft mixer for producing concrete, which relates to the field of double-shaft mixer devices and comprises a mixer shell, a fixed top cover is detachably connected to the top of the mixer shell, a mixing cavity is formed between the mixer shell and the fixed top cover, and a feeding pipeline is arranged at one end of the top of the fixed top cover in a penetrating manner. According to the double-shaft stirring machine for producing concrete, concrete is poured into the top of the feeding pipeline, falls into the main flow dividing pipe and the tops of the inclined flow dividing pipes located on the two sides of the main flow dividing pipe through falling, and is divided through interlayers of the main flow dividing pipe and the inclined flow dividing pipes, so that the concrete flows in the main flow dividing pipe and the two inclined flow dividing pipes; when concrete of the main flow dividing pipe falls down and breaks away from the inner wall of the main flow dividing pipe, the concrete can fall into the center of the mixer shell, when concrete of the two inclined flow dividing pipes falls down and breaks away from the inner wall of the main flow dividing pipe, the concrete can fall into the two ends of the interior of the mixer shell, and therefore the acting force of the concrete on the mixer shell is reduced, and the service life of the mixer shell is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of double-shaft mixer devices, in particular to a double-shaft mixer used for producing concrete. Background Art

[0002] A twin-shaft mixer is a common mixing equipment, usually composed of two shaft blades and a mixing tank. It is mainly used for mixing, dispersing, and evenly mixing processes in the chemical, building materials, and pharmaceutical industries. The twin-shaft concrete mixer is evenly fed into the main machine by two sets of spiral blade machines. The dry ash and powder materials entering the mixing tank and the stirring tank are forced to be mixed and stirred by the water quantitatively supplied by the water supply device. At the same time, the materials that meet the humidity requirements are transported to the discharge port for discharge. It is often used for mechanized mixing of cement concrete and the ash hopper of the ash bin in thermal power plants for water spraying wet mixing and conveying of powdered materials. It is also suitable for humidification, mixing and conveying of solid particle materials in chemical, mining and other industries.

[0003] When processing and mixing concrete, the existing twin-shaft mixer pours the concrete into the inlet at the top of the twin-shaft mixer, adds a proper amount of water to the twin-shaft mixer, and drives the two shafts to drive the shaft blades to stir the concrete so that the concrete is evenly dispersed in the mixing tank. However, after adding concrete to the inlet, hard materials such as gravel and sand are also added. When they fall along the inlet, they will impact the shaft at the bottom, causing deformation or even damage to the shaft, thereby reducing its service life.

[0004] Therefore, it is necessary to provide a new twin-shaft mixer for producing concrete to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a double-shaft mixer for producing concrete.

[0006] The utility model provides a twin-shaft mixer for producing concrete, comprising a mixer shell, a fixed top cover detachably connected to the top of the mixer shell, a mixing chamber formed between the mixer shell and the fixed top cover, a feed pipe penetrating one end of the top of the fixed top cover, the cross-sectional size of the top of the feed pipe gradually increases, the bottom of the feed pipe extends into the mixing chamber of the mixer shell, and one end of the feed pipe extension is respectively fixedly connected to a main branch pipe and oblique branch pipes located on both sides of the main branch pipe, and the inner side walls of the main branch pipe and the oblique branch pipe are respectively fixedly connected to a plurality of guide brackets at equal intervals along a horizontal angle, and the cross-section of the guide bracket is in the shape of an arc.

[0007] Furthermore, a plurality of support brackets are fixedly connected to the bottom of the mixer housing, and the plurality of support brackets are arranged opposite to each other at the two end edges of the bottom of the mixer housing.

[0008] Furthermore, one end of the mixer housing away from the fixed top cover is fixedly connected to a drive motor and a connecting piece in sequence, and the output end of the drive motor extends into the interior of the connecting piece.

[0009] Furthermore, two fixed shafts are arranged through the inner wall of the mixer shell in the horizontal direction, and the two fixed shafts are staggered with the main diversion pipe and the two oblique diversion pipes. The two fixed shafts extend out of the outer wall of the mixer shell and extend into the interior of the connecting piece, and one of the fixed shafts is fixedly connected to the output end of the drive motor.

[0010] Furthermore, the fixed shaft is radially surrounded by rotating blades on the outside, and a plurality of auxiliary blocks are arranged around the outer wall of the fixed shaft, and the auxiliary blocks and the rotating blades are arranged alternately.

[0011] Furthermore, a discharge pipe is provided through the bottom of one end of the mixer housing away from the feed pipe.

[0012] Compared with the related art, the double-shaft mixer for producing concrete provided by the utility model has the following beneficial effects:

[0013] 1. The double-shaft mixer for producing materials pours materials at the top of the feed pipe, and the materials fall into the main diverter pipe and the tops of the oblique diverter pipes on both sides of the main diverter pipe through falling, and the materials are diverted through the partitions to flow in the main diverter pipe and the two oblique diverter pipes respectively. When the materials in the main diverter pipe fall and break away from its inner wall, they will fall into the center of the mixer shell. When the materials in the two oblique diverter pipes fall and break away from their inner walls, they will fall into the two ends of the inner part of the mixer shell, thereby reducing the force of the materials on the mixer shell and increasing the service life of the mixer shell.

[0014] 2. In the twin-shaft mixer used for the production of materials, when the materials flow in the main diversion pipe and the two oblique diversion pipes, the guide brackets arranged on the inner wall will guide and divide the materials in a small range, so that the materials can pass through the main diversion pipe and the two oblique diversion pipes relatively evenly and fall into the inner wall of the mixer shell, thereby improving the uniformity of the feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structural diagram of the double-shaft mixer for producing concrete provided by the utility model;

[0016] Figure 2 A schematic structural diagram of a twin-shaft mixer for producing concrete provided by the utility model from another perspective;

[0017] Figure 3 A schematic diagram of the disassembled structure of a double-shaft mixer for producing concrete provided by the utility model;

[0018] Figure 4 A schematic diagram of the structure of the feed pipe provided by the utility model;

[0019] Figure 5 A structural schematic diagram of the feed pipe provided by the utility model from another perspective;

[0020] Figure 6 This is a schematic cross-sectional structural diagram of the feed pipe provided by the utility model.

[0021] Numbers in the figure: 1. Mixer shell; 2. Fixed top cover; 3. Inlet pipe; 4. Main diversion pipe; 5. Oblique diversion pipe; 6. Guide bracket; 7. Drive motor; 8. Support bracket; 9. Fixed shaft; 10. Rotating fan blades; 11. Auxiliary block; 12. Discharge pipe. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 , Figure 1 The overall structural diagram of the double-shaft mixer for producing concrete provided by the utility model; Figure 2 A schematic structural diagram of a twin-shaft mixer for producing concrete provided by the utility model from another perspective; Figure 3 A schematic diagram of the disassembled structure of a double-shaft mixer for producing concrete provided by the utility model; Figure 4 A schematic diagram of the structure of the feed pipe provided by the utility model; Figure 5 A structural schematic diagram of the feed pipe provided by the utility model from another perspective; Figure 6 This is a schematic cross-sectional structural diagram of the feed pipe provided by the utility model.

[0024] In the specific implementation process, Figures 1 to 6 As shown, a twin-shaft mixer for producing concrete comprises a mixer housing 1, a fixed top cover 2 is detachably connected to the top of the mixer housing 1, and a mixing chamber is formed between the mixer housing 1 and the fixed top cover 2, a feed pipe 3 is provided through one end of the top of the fixed top cover 2, the cross-sectional size of the top of the feed pipe 3 gradually increases, and the bottom of the feed pipe extends into the mixing chamber of the mixer housing 1, and one end of the feed pipe 3 is fixedly connected to a main shunt pipe 4 and oblique shunt pipes 5 located on both sides of the main shunt pipe 4, and the inner side walls of the main shunt pipe 4 and the oblique shunt pipe 5 are fixedly connected to a plurality of guide brackets 6 at equal intervals along a horizontal angle, and the cross section of the guide bracket 6 is in the shape of an arc;

[0025] It should be noted that by pouring the material into the top of the feed pipe 3, the material falls into the main branch pipe 4 and the top of the oblique branch pipe 5 located on both sides of the main branch pipe 4 through falling, and the material is divided through its partition, so that the material flows in the main branch pipe 4 and the two oblique branch pipes 5 respectively. When the material in the main branch pipe 4 falls and separates from its inner wall, it will fall into the center of the mixer housing 1. When the material in the two oblique branch pipes 5 falls and separates from its inner wall, it will fall into the inner ends of the mixer housing 1, thereby reducing the force of the material on the mixer housing 1 and improving the service life of the mixer housing 1.

[0026] At the same time, when the material flows in the main shunt pipe 4 and the two oblique shunt pipes 5, the guide bracket 6 arranged on the inner wall thereof will guide and divide the material in a small range, so that the material can pass through the main shunt pipe 4 and the two oblique shunt pipes 5 relatively evenly and fall into the inner wall of the mixer housing 1, thereby improving the uniformity of the material feeding;

[0027] Specifically, Figures 1 to 3 As shown, a plurality of support brackets 8 are fixedly connected to the bottom of the mixer housing 1, and the plurality of support brackets 8 are arranged opposite to each other at the edges of both ends of the bottom of the mixer housing 1;

[0028] It should be noted that the multiple support brackets 8 play a bearing role on the mixer housing 1, thereby improving the stability of the mixer housing 1 during operation;

[0029] Specifically, Figures 1 to 3 As shown, one end of the mixer housing 1 away from the fixed top cover 2 is fixedly connected with a drive motor 7 and a connecting piece in sequence, and the output end of the drive motor 7 extends to the inside of the connecting piece, and two fixed shaft rods 9 are arranged through the inner side wall of the mixer housing 1 in the horizontal direction, and the two fixed shaft rods 9 are staggered with the main shunt pipe 4 and the two oblique shunt pipes 5, and the two fixed shaft rods 9 extend out of the outer side wall of the mixer housing 1 and extend to the inside of the connecting piece, and one of the fixed shaft rods 9 is fixedly connected to the output end of the drive motor 7, and the fixed shaft rod 9 is radially surrounded by rotating blades 10 on the outside, and a plurality of auxiliary blocks 11 are arranged around the outer side wall of the fixed shaft rod 9, and the auxiliary blocks 11 are staggered with the rotating blades 10;

[0030] The connecting member includes a connecting housing and a gear 1 and a gear 2 arranged therein and meshing with each other. The gear 1 and the gear 2 are coaxially fixedly connected to two fixed shafts 9 respectively, and one of the fixed shafts 9 is fixedly connected to the output end of the driving motor 7;

[0031] It should be noted that, by starting the driving motor 7, the output end of the driving motor 7 drives the fixed shaft 9 connected thereto, and the two fixed shafts 9 are meshed with each other through the gear 1 and the gear 2 to make them move relative to each other, so that they rotate relative to each other, and the materials inside the mixer housing 1 are stirred and mixed, thereby ensuring that the materials are evenly mixed;

[0032] The two fixed shafts 9 are staggered with the main shunt pipe 4 and the two oblique shunt pipes 5, so that the materials are dispersed and fall into the gap between the two fixed shafts 9 when falling, so that the collision between the fixed shafts 9 and the materials is reduced, and the service life of the fixed shafts 9 is increased;

[0033] Specifically, Figures 1 to 3 As shown, a discharge pipe 12 is provided through the bottom of one end of the mixer housing 1 away from the feed pipe 3;

[0034] It should be noted that the discharge pipe 12 is in a sealed state when the material inside the mixer housing 1 is being processed. After the material inside the mixer housing 1 is processed, the discharge pipe 12 is opened to discharge the processed material.

[0035] The working principle provided by the utility model is as follows: when the utility model is implemented, by pouring materials at the top of the feed pipe 3, the materials fall into the main branch pipe 4 and the tops of the oblique branch pipes 5 located on both sides of the main branch pipe 4 through falling, and the materials are diverted through the partitions, so that the materials flow in the main branch pipe 4 and the two oblique branch pipes 5 respectively. When the materials in the main branch pipe 4 fall and break away from its inner wall, they will fall into the center position of the mixer shell 1. When the materials in the two oblique branch pipes 5 fall and break away from their inner walls, they will fall into the inner ends of the mixer shell 1, thereby reducing the force of the materials on the mixer shell 1 and improving the service life of the mixer shell 1.

[0036] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0037] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A twin-shaft mixer for producing concrete, characterized in that: The invention comprises a mixer housing (1), wherein a fixed top cover (2) is detachably connected to the top of the mixer housing (1), and a mixing chamber is formed between the mixer housing (1) and the fixed top cover (2); a feed pipe (3) is provided through one end of the top of the fixed top cover (2), the cross-sectional size of the top of the feed pipe (3) gradually increases, and the bottom of the feed pipe extends into the mixing chamber of the mixer housing (1); and one end of the feed pipe (3) is fixedly connected to a main flow dividing pipe (4) and oblique flow dividing pipes (5) located on both sides of the main flow dividing pipe (4); and the inner side walls of the main flow dividing pipe (4) and the oblique flow dividing pipe (5) are fixedly connected to a plurality of flow guide brackets (6) at equal intervals along a horizontal angle, and the cross section of the flow guide bracket (6) is in the shape of an arc.

2. The twin-shaft mixer for producing concrete according to claim 1, characterized in that: A plurality of support brackets (8) are fixedly connected to the bottom of the mixer housing (1), and the plurality of support brackets (8) are arranged opposite to each other at the two end edges of the bottom of the mixer housing (1).

3. The twin-shaft mixer for producing concrete according to claim 2, characterized in that: The end of the mixer housing (1) away from the fixed top cover (2) is fixedly connected to a drive motor (7) and a connecting piece in sequence, and the output end of the drive motor (7) extends into the interior of the connecting piece.

4. The twin-shaft mixer for producing concrete according to claim 3, characterized in that: Two fixed shafts (9) are provided through the inner wall of the mixer housing (1) in the horizontal direction, and the two fixed shafts (9) are arranged alternately with the main branch pipe (4) and the two oblique branch pipes (5). The two fixed shafts (9) extend out of the outer wall of the mixer housing (1) and extend into the interior of the connecting piece, and one of the fixed shafts (9) is fixedly connected to the output end of the drive motor (7).

5. The twin-shaft mixer for producing concrete according to claim 4, characterized in that: The fixed shaft rod (9) is radially surrounded by rotating blades (10) on the outside, and a plurality of auxiliary blocks (11) are arranged around the outer wall of the fixed shaft rod (9), and the auxiliary blocks (11) and the rotating blades (10) are arranged in an alternating manner.

6. The twin-shaft mixer for producing concrete according to claim 5, characterized in that: A discharge pipe (12) is provided through the bottom of one end of the mixer housing (1) away from the feed pipe (3).

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