Concrete mixing preparation machine

Abstract

The utility model relates to a concrete mixing preparation machine which comprises a first-stage mixing barrel and a second-stage storage bin and is characterized in that the first-stage mixing barrel is of an inclined ladder vertical structure, the second-stage storage bin is of a horizontal structure, and the first-stage mixing barrel is erected above the second-stage storage bin; the first-stage stirring barrel is used for mixing and preparing slurry, a first-stage stirring shaft which is vertically mounted is arranged in the first-stage stirring barrel, the first-stage stirring shaft is in output connection with a first-stage stirring motor arranged outside the barrel, and the first-stage stirring barrel is provided with a dry powder inlet, a water inlet, a foam inlet and a slurry outlet; the bottom of the first-stage stirring barrel is communicated with a second-stage storage bin through a pneumatic valve; the second-stage storage bin is used for achieving second-stage stirring and material storage, a second-stage stirring shaft is arranged in the second-stage storage bin, and the second-stage storage bin is provided with a discharging opening. The slurry mixing device is compact and reasonable in structural design, excellent in slurry mixing effect and smaller in space proportion.

Description

Technical Field

[0001] The utility model relates to a concrete mixing and preparation machine, belonging to the technical field. Background Art

[0002] There are two main design forms of the mixing barrels of existing light concrete mixing equipment. One is the horizontal barrel structure, and the other is the vertical barrel structure. The mixing shaft of the horizontal barrel structure is horizontally installed inside the mixing barrel. The problem with this structure is that materials are prone to splashing during the mixing process. At the same time, since the rotating shaft is immersed in the slurry, slurry leakage is likely to occur due to wear of the rotating shaft. The vertical barrel structure enables the mixing shaft to be vertically installed in a suspended manner, so that the shaft end can be separated from the slurry, thus solving the problem of slurry splashing. However, it still has some structural defects. For example, due to the different specific gravities of the materials, the central rotation mixing method cannot fully mix materials with different components and specific gravities, and the phenomenon of separation and stratification often occurs, and the mixing effect is not ideal. To solve the above problems, it is necessary to increase multi-stage mixing, resulting in a complex structure and increased cost, and at the same time, a large space occupation requirement for the equipment.

[0003] In view of the above, this application will continue to optimize the structure of the existing concrete mixing and preparation machine. Summary of the Invention

[0004] The utility model aims to provide a concrete mixing and preparation machine with a scientific and compact structure, excellent mixing effect, and smaller space occupation ratio.

[0005] To solve the above problems, the technical solution adopted by the utility model is:

[0006] A concrete mixing and preparation machine includes a primary mixing barrel and a secondary storage bin. The special feature is that the primary mixing barrel is in an inclined ladder vertical structure, the secondary storage bin is in a horizontal structure, and the primary mixing barrel is erected above the secondary storage bin;

[0007] The primary mixing barrel is used for mixing and preparing slurry. It is internally provided with a vertically installed primary mixing shaft, which is output-connected by a primary mixing motor arranged outside the barrel. The primary mixing barrel has a dry powder inlet, a water inlet, a foam inlet, and a slurry outlet; the bottom of the primary mixing barrel is connected to the secondary storage bin through a pneumatic valve;

[0008] The secondary storage bin is used for secondary mixing and storage. It is internally provided with a secondary mixing shaft, and the secondary storage bin has a discharge port.

[0009] Further, the primary mixing barrel is fixed above the secondary storage bin through a support platform.

[0010] Further, the dry powder inlet of the first-stage mixing barrel is arranged on one side of the barrel top, and the water inlet is arranged on the other side of the barrel top. The water inlet is connected to an external water source through a water inlet pipeline.

[0011] Further, the water inlet pipeline extends to the water inlet of the first-stage mixing barrel through a water inlet pipeline guide groove arranged on the support platform frame, and a flow sensor for monitoring the water volume is arranged in the water inlet pipeline guide groove.

[0012] Further, the foam inlet of the first-stage mixing barrel is connected to a foam pipeline, and a foam stabilizing tank is installed on the foam pipeline. The foam stabilizing tank is arranged on the support platform frame.

[0013] Further, a pneumatic valve is arranged below the slurry outlet of the first-stage mixing barrel, and the pneumatic valve is connected to an air storage tank arranged on the support platform frame.

[0014] Further, the first-stage mixing shaft is successively provided with a high-position three-blade fan, a spiral blade, a low-position three-blade fan, and a bottom scraping blade from top to bottom.

[0015] Further, a liquid level sensor for monitoring the liquid level is arranged above the second-stage storage bin.

[0016] Further, the bottom of the second-stage storage bin is provided with legs and walking wheels.

[0017] Further, a control console is arranged on the front side of the second-stage storage bin. A towing bar is arranged on the front side of the control console. The control console is respectively in communication connection with the liquid level sensor and the flow sensor.

[0018] A concrete mixing and preparation machine of the present utility model can complete functions such as multi-component mixing and stirring, slurry preparation and storage, etc. The inclined ladder vertical structure of the first-stage mixing barrel enables the first-stage mixing shaft to be designed with an asymmetric center in the barrel body, which can fully mix materials with different specific gravities and will not cause problems of stratification and sedimentation. At the same time, combined with the optimization of the mixing shaft, uniform mixing and preparation of the slurry are completed. The prepared slurry has good workability, does not stratify, and does not settle. Description of the Drawings

[0019] Figure 1 : Schematic structural diagram of a concrete mixing and preparation machine in Embodiment 1;

[0020] Figure 2 : Figure 1 Rear view of

[0021] Figure 3 : Schematic internal structure diagram of the first-stage mixing barrel;

[0022] Figure 4 : Schematic external structure diagram of the first-stage mixing barrel;

[0023] Figure 5 : Schematic diagram of the structure of the primary stirring shaft;

[0024] In the figure, 1 is the primary stirring tank, 11 is the primary stirring motor, 12 is the primary stirring shaft, 12a is the bottom scraping blade, 12b is the lower three-blade fan, 12c is the spiral blade, 12d is the upper three-blade fan, 13 is the dry powder inlet, 14 is the foam pipeline, 15 is the water inlet, 16 is the discharge port and the pneumatic valve, 2 is the secondary storage bin, 21 is the secondary stirring shaft, 22 is the discharge port, 5 are the walking wheels, 3 is the control console, 4 is the support frame, 41 is the water inlet pipeline guide groove, 42 is the foam stabilizing tank, 43 is the air storage tank, 6 are the legs, 7 is the towing bar. Specific embodiments

[0025] The following will make the following detailed description of the present invention with reference to the accompanying drawings.

[0026] Embodiment 1

[0027] A concrete mixing and preparation machine, see Figures 1-5 , including a primary stirring tank 1 for preparing slurry, a secondary storage bin 2 for realizing secondary stirring and storage, and a control console 3 for monitoring and controlling the operation of the equipment. The primary stirring tank 1 is of an inclined ladder vertical structure and is fixed above the secondary storage bin 2 through a support frame 4. The secondary storage bin 2 is of a horizontal structure, and its bottom is provided with legs 6 and walking wheels 5; the control console 3 is arranged on one side of the secondary storage bin 2, and a towing bar 7 is provided in front of the control console 3.

[0028] A primary stirring motor 11 is installed on the top of the primary stirring tank 1, and the primary stirring motor 11 is connected to the primary stirring shaft 12 placed in the tank via a reducer. The upper part of the primary stirring tank 1 is respectively provided with a dry powder inlet 13 and a water inlet 15, and a foam pipeline 14 is connected to one side of the middle part. The water inlet 15 is connected to the water inlet pipeline. A water inlet pipeline guide groove 41 is arranged above the support frame 4, and a flow sensor is arranged in the water inlet pipeline guide groove 41. After the water inlet pipeline enters the water inlet pipeline guide groove 41, it is connected to the flow sensor and then connected to the water inlet 15 of the primary stirring tank 1. A foam stabilizing tank 42 is arranged on the support frame 4. The foam pipeline 14 enters the support frame 4 from the outside and is connected to the foam stabilizing tank 42 installed on the support frame 4, and then is connected to the inside of the primary stirring tank 1. The bottom of the primary stirring tank 1 is connected to the lower secondary storage bin 2 through a discharge port and a pneumatic valve 16. An air storage tank 43 is also arranged on the support frame 4, and the air storage tank 43 is used to assist in completing the opening and closing function of the pneumatic valve. After dry powder, foam and water enter the inside of the primary stirring tank 1 through their respective inlets, they are fully mixed under the action of the primary stirring shaft 12 to complete the preparation of the slurry, and enter the lower secondary storage bin 2 through the pneumatic valve 16 at the bottom of the primary stirring tank 1.

[0029] In order to make the materials mix more fully and evenly in the primary stirring barrel, the blades on the primary stirring shaft 12 are optimized. Along the primary stirring shaft 12, there is a pair of bottom scraping blades 12a, a low-position three-blade fan 12b, a high-position three-blade fan 12d, and a spiral blade 12c with a diameter gradually increasing from top to bottom. The bottom scraping blade 12a is located at the end of the primary stirring shaft 12, is adaptively installed at the bottom of the primary stirring barrel 1, and has a certain gap with the bottom plate of the primary stirring barrel 1. The spiral blade 12c is installed on the three-blade fan 12b and extends above the primary stirring barrel 1. The low-position three-blade fan 12b is installed between the bottom scraping blade 12a and the spiral blade 12c. The high-position three-blade fan 12d is installed above the spiral blade 12c. The blade inclination angle of the low-position three-blade fan 12b is greater than that of the high-position three-blade fan 12d. Based on the inclined ladder-shaped inner cavity structure of the primary stirring barrel 1, the centrally vertical primary stirring shaft 12 in the middle, and the mutual cooperation among several types of blades, the best workability of the materials in the barrel can be achieved under different specific gravities, that is, the fluidity, water retention, and cohesiveness of the slurry are ensured in three aspects of performance.

[0030] On one side of the secondary storage bin 2, a secondary stirring motor is provided. The output of the secondary stirring motor is connected to a secondary stirring shaft 21. The secondary stirring shaft 21 is horizontally placed inside the secondary storage bin 2. One side of the secondary storage bin 2 has a discharge port 22.

[0031] A liquid level sensor is provided at a predetermined position above the secondary storage bin 2 to monitor the liquid level of the secondary storage bin 2 to prevent failures such as bridging and jamming.

[0032] The control console 3 is signal-connected to the liquid level sensor and the flow sensor, and can monitor the operation status of the equipment in real time through the configured control interface.

[0033] A concrete mixing and preparation machine of the present utility model can complete functions such as multi-component mixing and stirring, slurry preparation and storage. The inclined ladder vertical structure of the primary stirring barrel makes the primary stirring shaft have an asymmetric center design in the barrel body, which can fully mix materials with different specific gravities and will not cause problems of stratification and sedimentation. At the same time, combined with the optimization of the stirring shaft, the uniform stirring and preparation of the slurry are completed. The prepared slurry has good workability, no stratification, and no sedimentation.

Claims

1. A concrete mixing and preparation machine, comprising a primary mixing barrel and a secondary storage bin, characterized in that, The primary mixing barrel is in an inclined ladder vertical structure, the secondary storage bin is in a horizontal structure, and the primary mixing barrel is erected above the secondary storage bin; The primary mixing barrel is used for mixing and preparing slurry. An upright primary mixing shaft is arranged inside it. The primary mixing shaft is output-connected by a primary mixing motor configured outside the barrel. The primary mixing barrel has a dry powder inlet, a water inlet, a foam inlet, and a slurry outlet. The bottom of the primary mixing barrel is connected to the secondary storage bin through a pneumatic valve; The secondary storage bin is used for secondary mixing and storage. A secondary mixing shaft is arranged inside it. The secondary storage bin has a discharge port.

2. The concrete mixing and preparing machine according to claim 1, wherein The primary mixing barrel is fixed above the secondary storage bin through a support platform frame.

3. The concrete mixing and preparing machine according to claim 1, wherein The dry powder inlet of the primary mixing barrel is arranged on one side of the barrel top, and the water inlet is arranged on the other side of the barrel top. The water inlet is connected to an external water source through a water inlet pipeline.

4. The concrete mixing and preparing machine according to claim 3, wherein The water inlet pipeline extends to the water inlet of the primary mixing barrel through a water inlet pipeline guide groove arranged on the support platform frame. A flow sensor for monitoring the water volume is arranged in the water inlet pipeline guide groove.

5. The concrete mixing and preparing machine according to claim 1, wherein The foam inlet of the primary mixing barrel is connected to a foam pipeline. A foam stabilizing tank is installed on the foam pipeline. The foam stabilizing tank is arranged on the support platform frame.

6. The concrete mixing and preparing machine according to claim 1, wherein A pneumatic valve is arranged below the slurry outlet of the primary mixing barrel. The pneumatic valve is connected to an air storage tank arranged on the support platform frame.

7. The concrete mixing and preparing machine according to claim 1, wherein The primary mixing shaft is sequentially provided with a high-position three-blade fan, a spiral blade, a low-position three-blade fan, and a bottom scraping blade from top to bottom.

8. The concrete mixing and preparing machine according to claim 1, wherein A liquid level sensor for monitoring the liquid level is arranged above the secondary storage bin.

9. The concrete mixing and preparing machine according to claim 1, wherein The bottom of the secondary storage bin has legs and walking wheels.

10. The concrete mixing and preparing machine according to claim 1, wherein A control console is arranged on the front side of the secondary storage bin. A towing bar is arranged on the front side of the control console. The control console is respectively communicatively connected to the liquid level sensor of the secondary storage bin and the flow sensor of the primary mixing barrel.

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