Mixing and stirring device for recycled concrete processing

Abstract

The utility model provides a trial mixing device for recycled concrete processing, which is characterized in that a discharge pipe is arranged at the bottom of one end of a mixing drum, a pre-mixing drum is arranged at the top of the other end of the mixing drum, a plurality of feed pipes are uniformly distributed at the top of the pre-mixing drum, and a mixing motor is fixedly connected to the top of the pre-mixing drum; when trial mixing is carried out, a discharging pipe of a concrete homogenizer is connected with feeding pipes, feeding is carried out on the multiple feeding pipes at the same time, at the moment, a mixing motor works, the output end of the mixing motor drives a pre-mixing stirring frame to rotate at a high speed, and the pre-mixing stirring frame pre-mixes dry raw materials entering a pre-mixing barrel before the raw materials make contact with water; the raw materials can be fully mixed, the mixed raw materials fall into the stirring barrel from the bottom of the pre-mixing barrel, water is injected into the water inlet pipe at the moment, and the fully mixed raw materials are mixed again by adding water, so that concrete is more uniform during trial mixing.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete production, in particular to a trial mixing device for processing recycled concrete. Background Art

[0002] Recycled concrete refers to new concrete made by crushing, cleaning, and grading discarded concrete blocks, mixing them with grading in a certain proportion, partially or completely replacing natural aggregates such as sand and gravel (mainly coarse aggregate), and then adding cement, water, etc.; recycled concrete can have the following situations according to the combination of aggregates: all aggregates are recycled aggregates; coarse aggregates are recycled aggregates and fine aggregates are natural sand; coarse aggregates are natural crushed stone or pebbles and fine aggregates are recycled aggregates; recycled aggregates replace part of the coarse aggregate or fine aggregate.

[0003] When existing mixing equipment is in use, the internal stirring rod is often of a fixed structure and fixed speed. During stirring, the internal raw materials are easily stratified due to the inertia of rotation, and solutions of the same density are located in the same layer, resulting in uneven mixing of the raw materials. Therefore, a trial mixing device for recycled concrete processing is proposed. Utility Model Content

[0004] In order to solve at least one of the above-mentioned technical shortcomings, the utility model provides a trial mixing device for recycled concrete processing, including a mixing drum, a mixing mechanism and a supporting mechanism. The mixing drum is fixed to the ground by the supporting mechanism, and the mixing mechanism is rotatably connected to the inside of the mixing drum. A discharge pipe is provided at the bottom of one end of the mixing drum, and a premixing drum is provided at the top of the other end of the mixing drum. Several feed pipes are evenly distributed on the top of the premixing drum. A mixing motor is fixedly connected to the top of the premixing drum. The output end of the mixing motor passes through the top of the premixing drum and is fixedly connected to a premixing mixing frame located inside the premixing drum. A water inlet pipe is provided on the mixing drum.

[0005] Furthermore, the water inlet pipe is located at the top of one end of the mixing drum away from the discharge pipe.

[0006] Furthermore, a flow valve is provided on the water inlet pipe.

[0007] Furthermore, the premixing stirring frame includes a mixing shaft fixedly connected to the output end of the mixing motor, and the outer wall of the mixing shaft is evenly provided with a plurality of mixing blades with a spiral shape of 15° to 30°, and the plurality of mixing blades are distributed in a spiral.

[0008] Furthermore, the mixing sheet is provided with at least one through hole.

[0009] Furthermore, the stirring mechanism includes a stirring rod rotatably connected to the inside of the stirring drum, the end of the stirring drum is fixedly connected to a drive motor, the output end of the drive motor is fixedly connected to the stirring rod, and the outer wall of the stirring rod is evenly provided with a plurality of stirring arc plates.

[0010] Furthermore, the stirring arcs are distributed in a spiral shape.

[0011] Furthermore, a plurality of support mechanisms are provided, and the support mechanisms include a support ring fixed on the outer wall of the mixing drum, and two support feet arranged in an "eight" shape are provided at the bottom of the support ring. Beneficial effects

[0012] During trial mixing, the discharge pipe of the concrete homogenizer is connected to the feed pipe, and materials are added to multiple feed pipes at the same time. At this time, the mixing motor is working, and the output end of the mixing motor drives the pre-mixing mixing frame to rotate at high speed, so that the pre-mixing mixing frame pre-mixes the dry raw materials entering the pre-mixing drum before they come into contact with water, so that the raw materials can be fully mixed. The mixed raw materials fall from the bottom of the pre-mixing drum into the interior of the mixing drum, and water is injected into the water inlet pipe. At this time, water is added to the fully mixed raw materials for re-mixing, so that the concrete is more uniform during trial mixing.

[0013] The output end of the mixing motor drives the pre-mixing mixing frame to rotate at high speed, so that the pre-mixing mixing frame pre-mixes the dry raw materials entering the pre-mixing barrel before they come into contact with water, and fully impacts the raw materials through the mixing pieces. At the same time, the mixing pieces are spirally distributed. When rotating clockwise, the mixing pieces are spirally distributed to stir the raw materials as a whole upward, so that they stay inside the pre-mixing barrel for a period of time, making the raw materials mixed more fully. When rotating counterclockwise, the entry of the raw materials can be accelerated so that the raw materials can be fully mixed. The mixed raw materials fall from the bottom of the pre-mixing barrel into the interior of the mixing barrel. At this time, water is injected into the water inlet pipe. At this time, water is added to the fully mixed raw materials for re-mixing, so that the concrete is more uniform during trial mixing.

[0014] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall axonometric drawing of the present invention.

[0016] Figure 2 It is an overall axial cross-sectional view of the utility model.

[0017] Figure 3 This is an axial cross-sectional view of the pre-mixing barrel of the present invention.

[0018] Figure 4 It is an axonometric view of the stirring mechanism of the present invention.

[0019] Figure 5 This is an axonometric view of the premixing stirring frame of the present invention.

[0020] Figure 6 It is an axonometric drawing of the support mechanism of the present utility model.

[0021] exist Figures 1 to 6 , the correspondence between the component names or lines and the drawing numbers is: mixing drum 1, water inlet pipe 101, flow valve 102, premixing drum 103, feeding pipe 104, premixing stirring frame 105, mixing shaft 151, mixing sheet 152, through hole 153, mixing motor 106, discharge pipe 107, stirring mechanism 2, drive motor 201, stirring rod 202, stirring arc sheet 203, support mechanism 3, support ring 301, support foot 302. DETAILED DESCRIPTION

[0022] Please refer to Figures 1 to 6 ;

[0023] This embodiment provides a trial mixing device for processing recycled concrete. Figures 1 to 3 , comprising a mixing drum 1, a stirring mechanism 2 and a supporting mechanism 3, the mixing drum 1 is fixed to the ground through the supporting mechanism 3, the stirring mechanism 2 is rotatably connected to the inside of the mixing drum 1, a discharge pipe 107 is provided at the bottom of one end of the mixing drum 1, a pre-mixing drum 103 is provided on the top of the other end of the mixing drum 1, a plurality of feed pipes 104 are evenly distributed on the top of the pre-mixing drum 103, a mixing motor 106 is fixedly connected to the top of the pre-mixing drum 103, the output end of the mixing motor 106 passes through the top of the pre-mixing drum 103 and is fixedly connected to a pre-mixing stirring frame 105 located inside the pre-mixing drum 103, and a water inlet pipe 101 is provided on the mixing drum 1;

[0024] In specific implementation, when trial mixing is carried out, the discharge pipe of the concrete homogenizer is connected to the feed pipe 104, and multiple feed pipes 104 are fed at the same time. At this time, the mixing motor 106 is working, and the output end of the mixing motor 106 drives the pre-mixing stirring frame 105 to rotate at high speed, so that the pre-mixing stirring frame 105 pre-mixes the dry raw materials entering the pre-mixing drum 103 before they come into contact with water, so that the raw materials can be fully mixed. The mixed raw materials fall from the bottom of the pre-mixing drum 103 into the interior of the mixing drum 1, and water is injected into the water inlet pipe 101. At this time, water is added to the fully mixed raw materials for re-mixing, so that the concrete is more uniform during trial mixing.

[0025] For further reference, Figures 1 to 3 , the water inlet pipe 101 is located at the top of the end of the mixing drum 1 away from the discharge pipe 107;

[0026] In specific implementation, when cleaning the interior of the mixing drum 1, the water inlet pipe 101 is located at the top of the end of the mixing drum 1 away from the discharge pipe 107, so that the incoming water can flow through the entire interior of the mixing drum 1, thereby improving the cleaning quality.

[0027] For further reference, Figure 2 , a flow valve 102 is provided on the water inlet pipe 101;

[0028] In a specific implementation, the amount of water added is counted by setting the flow valve 102 .

[0029] For further reference, Figure 5 The pre-mixing stirring frame 105 includes a mixing shaft 151 fixedly connected to the output end of the mixing motor 106, and the outer wall of the mixing shaft 151 is evenly provided with a plurality of mixing blades 152 with a spiral shape of 15° to 30°, and the plurality of mixing blades 152 are distributed in a spiral;

[0030] During specific implementation, the output end of the mixing motor 106 drives the pre-mixing stirring frame 105 to rotate at a high speed, so that the pre-mixing stirring frame 105 pre-mixes the dry raw materials entering the pre-mixing drum 103 before they come into contact with water, and fully impacts the raw materials through the mixing pieces 152. At the same time, the mixing pieces 152 are spirally distributed. When rotating clockwise, the mixing pieces 152 are spirally distributed to stir the raw materials as a whole upward, so that the raw materials entering the pre-mixing drum 103 will stay for a period of time, so that the raw materials are mixed more fully. When rotating counterclockwise, the entry of the raw materials can be accelerated so that the raw materials can be fully mixed. The mixed raw materials fall from the bottom of the pre-mixing drum 103 into the interior of the mixing drum 1. At this time, water is injected into the water inlet pipe 101. At this time, water is added to the raw materials that have been fully mixed to mix them again, so that the concrete is more uniform during trial mixing.

[0031] For further reference, Figure 5 , at least one through hole 153 is formed on the mixing sheet 152;

[0032] In a specific implementation, the through hole 153 is provided so that the raw materials that are impacted and lifted up can pass through the through hole 153 and move around randomly, thereby making the mixing more complete.

[0033] For further reference, Figure 4 The stirring mechanism 2 includes a stirring rod 202 rotatably connected to the inside of the stirring drum 1, a driving motor 201 is fixedly connected to the end of the stirring drum 1, an output end of the driving motor 201 is fixedly connected to the stirring rod 202, and a plurality of stirring arc pieces 203 are evenly arranged on the outer wall of the stirring rod 202;

[0034] In specific implementation, when the concrete is being stirred, the output end of the driving motor 201 drives the stirring rod 202 to rotate at a low speed, and the concrete inside the mixing drum 1 is stirred through the stirring arc piece 203 .

[0035] Furthermore, the stirring arc pieces 203 are distributed in a spiral shape;

[0036] In specific implementation, when the stirring arc plate 203 rotates clockwise, the raw materials in the mixing drum 1 are pushed toward the end away from the discharge pipe 107. When the stirring arc plate 203 rotates counterclockwise, the raw materials in the mixing drum 1 are pushed toward the end close to the discharge pipe 107, thereby increasing the discharge rate.

[0037] For further reference, Figure 6 The supporting mechanism 3 is provided with several supporting members, and the supporting mechanism 3 includes a supporting ring 301 fixed on the outer wall of the mixing drum 1 , and two supporting feet 302 arranged in an "eight" shape are provided at the bottom of the supporting ring 301 .

Claims

1. A trial mixing device for processing recycled concrete, comprising a mixing drum (1), a mixing mechanism (2) and a supporting mechanism (3), wherein the mixing drum (1) is fixed to the ground via the supporting mechanism (3), and the mixing mechanism (2) is rotatably connected to the interior of the mixing drum (1), characterized in that: A discharge pipe (107) is provided at the bottom of one end of the mixing drum (1), a premixing drum (103) is provided at the top of the other end of the mixing drum (1), a plurality of feed pipes (104) are evenly distributed on the top of the premixing drum (103), a mixing motor (106) is fixedly connected to the top of the premixing drum (103), an output end of the mixing motor (106) passes through the top of the premixing drum (103) and is fixedly connected to a premixing stirring frame (105) located inside the premixing drum (103), and a water inlet pipe (101) is provided on the mixing drum (1).

2. The trial mixing device for processing recycled concrete according to claim 1, characterized in that: The water inlet pipe (101) is located at the top of one end of the mixing drum (1) away from the discharge pipe (107).

3. The trial mixing device for processing recycled concrete according to claim 2, characterized in that: A flow valve (102) is provided on the water inlet pipe (101).

4. The trial mixing device for processing recycled concrete according to claim 3, characterized in that: The premixing stirring frame (105) comprises a mixing shaft (151) fixedly connected to the output end of the mixing motor (106), and the outer wall of the mixing shaft (151) is evenly provided with a plurality of mixing blades (152) with a spiral shape of 15° to 30°, and the plurality of mixing blades (152) are distributed in a spiral shape.

5. The trial mixing device for processing recycled concrete according to claim 4, characterized in that: At least one through hole (153) is provided on the mixing sheet (152).

6. The trial mixing device for processing recycled concrete according to claim 5, characterized in that: The stirring mechanism (2) comprises a stirring rod (202) rotatably connected to the interior of the stirring drum (1); a driving motor (201) is fixedly connected to the end of the stirring drum (1); an output end of the driving motor (201) is fixedly connected to the stirring rod (202); and a plurality of stirring arc blades (203) are evenly arranged on the outer wall of the stirring rod (202).

7. The trial mixing device for processing recycled concrete according to claim 6, characterized in that: The stirring arc pieces (203) are distributed in a spiral shape.

8. The trial mixing device for processing recycled concrete according to claim 7, characterized in that: A plurality of support mechanisms (3) are provided. The support mechanism (3) comprises a support ring (301) fixed on the outer wall of the mixing drum (1). The bottom of the support ring (301) is provided with two support feet (302) arranged in an "eight" shape.

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