CN218985279U - Powder adding device for concrete stirring equipment and concrete stirring equipment - Google Patents

Abstract

The utility model provides a powder adding device for concrete stirring equipment and the concrete stirring equipment, which relate to the technical field of the concrete equipment and comprise the following components: the device comprises a storage bin, a blanking mechanism and a valve. Wherein, the feed bin bottom is formed with rectangular blanking mouth. The blanking mechanism comprises a long cylindrical shell, a rotating shaft arranged in the shell, a spiral blade arranged on the periphery of the rotating shaft and a power source for driving the spiral blade to rotate; the shell is positioned at the bottom of the storage bin and is fixed on a blanking port of the storage bin; the bottom of the shell is also provided with a discharging channel. The valve is arranged on the discharging channel. The technical scheme of the application has the following technical effects: first, under helical blade's stirring, the material of feed bin bottom can be smooth and easy follow blanking mouth discharge to reduce the condition of card material. Secondly, with the help of helical blade, the material can reach the blanking mouth fast, and discharge speed is faster.

Description

Powder adding device for concrete stirring equipment and concrete stirring equipment

Technical Field

The application relates to the technical field of concrete equipment, in particular to a powder adding device for concrete stirring equipment and the concrete stirring equipment.

Background

The concrete stirring equipment takes cement as cementing material, and mixes and stirs the raw materials such as sand, lime, cinder and the like, and finally the concrete is manufactured. The raw materials of the self-compacting concrete comprise powder materials such as cement, coal ash and additives. The powder blanking device is used for quantitatively adding powder, and the powder easily blocks a blanking port of the bin in the blanking process, so that the powder cannot be blanked smoothly. In addition, at present, the concrete equipment mostly adopts the mode of free blanking, and blanking speed is slower.

Disclosure of Invention

The technical problem to be solved in this application lies in, to the above-mentioned not enough of prior art, proposes a powder interpolation device and concrete mixing equipment for concrete mixing equipment.

A powder adding device for concrete stirring equipment, comprising:

a strip-shaped blanking port is formed at the bottom of the storage bin;

the blanking mechanism comprises a long cylindrical shell, a rotating shaft arranged in the shell, a helical blade arranged on the periphery of the rotating shaft and a power source for driving the helical blade to rotate; the shell is positioned at the bottom of the storage bin and is fixed on a blanking port of the storage bin; the bottom of the shell is also provided with a discharging channel;

and the valve is arranged on the discharging channel.

In some improvements, the helical blade includes a first segment of helical blade on a first side of the discharge channel and a second segment of helical blade on a second side of the discharge channel; the spiral direction of the first section of spiral blade is opposite to the spiral direction of the second section of spiral blade, so that materials on two sides in the shell can be gathered towards the middle discharging channel when the spiral blade rotates.

In some improvements, the valve is a butterfly valve.

In some improvements, the valve is a pneumatic butterfly valve.

In some improvements, the power source is an electric motor.

In some improvements, a plurality of weighing sensors for mass metering are arranged along the circumference of the storage bin.

In some improved technical schemes, a vibrator is further arranged on the outer wall of the storage bin.

In another aspect, the present application also provides a concrete mixing apparatus comprising: the stirrer and the powder adding device for the concrete stirring equipment provided by the above parts.

The technical scheme of the application has the following technical effects: first, under helical blade's stirring, the material of feed bin bottom can be smooth and easy follow blanking mouth discharge to reduce the condition of card material. Secondly, with the help of helical blade, the material can reach the blanking mouth fast, and discharge speed is faster.

Drawings

Fig. 1 is a schematic structural view of a concrete mixing apparatus according to an embodiment of the present application.

Fig. 2 is a schematic structural view of a powder adding device for a concrete stirring apparatus in an embodiment of the present application.

Fig. 3 is a schematic structural view of a silo in an embodiment of the application.

Fig. 4 is another schematic structural view of a powder adding device for a concrete mixing apparatus in an embodiment of the present application.

Fig. 5 is a schematic diagram of an internal structure of the blanking mechanism in the embodiment of the present application.

Detailed Description

The following are specific embodiments of the present application and the technical solutions of the present application are further described with reference to the accompanying drawings, but the present application is not limited to these embodiments. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the present application. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the application. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

In addition, embodiments and features of embodiments in the present application may be combined with each other without conflict.

Referring to fig. 1 to 5, an embodiment of the present application provides a powder adding device for a concrete mixing apparatus, including: the automatic feeding device comprises a storage bin 10, a blanking mechanism 20 and a valve 30. Wherein, a strip-shaped blanking port 11 is formed at the bottom of the stock bin 10. The blanking mechanism 20 includes a long cylindrical housing 21, a rotating shaft 22 provided inside the housing 21, a helical blade 23 provided at the outer periphery of the rotating shaft 22, and a power source 24 for driving the helical blade 23 to rotate; the shell 21 is positioned at the bottom of the bin 10 and is fixed on the blanking port 11 of the bin 10; the bottom of the shell 21 is also provided with a discharge channel 25. A valve 30 is arranged on the discharge channel 25.

In the embodiments of the present application, the powder adding device can be applied to self-compacting concrete stirring equipment, and is particularly used for storing and metering powder, such as coal ash, cement and adhesive modifier. The self-compacting concrete is concrete which can flow and be compact under the action of self gravity, can completely fill the template even if compact reinforcing steel bars exist, and has good homogeneity without additional vibration. The self-compacting concrete comprises the following raw materials: cobble, sand, cement, coal ash, liquid additive and solid additive. Wherein the stone is coarse aggregate; the sand is fine aggregate; the adhesive, cement and coal ash are powder materials. The self-compacting concrete mixing equipment integrates the storage, metering, conveying and mixing equipment of various materials required by self-compacting concrete. In such self-compacting concrete mixing equipment, raw materials need to be added into a mixer according to a certain proportion, and a weighing device is used for mass metering of various materials. The self-compacting concrete mixing device can be used for manufacturing self-compacting concrete on site. In the prior art, powder is placed in a bin and is blanked through a blanking port at the bottom, and the blanking port of the bin is easily blocked in the blanking process, so that the powder cannot be blanked smoothly. Under normal conditions, the speed of free blanking of powder is also slower.

In the concrete mixing plant shown in fig. 4, the silo 10 may contain powder for making concrete, such as cement, coal ash. When powder is required to be added into the stirrer 200, the controller controls the valve 30 to be opened, controls the power source 24 to drive the rotating shaft 22 to rotate, and the helical blades 23 rotate to stir the materials in the shell 21, so that the materials are promoted to enter the discharging channel 25 from the shell 21 and are discharged into the stirrer 200 to be stirred. When the material in the shell 21 is continuously discharged from the discharging channel 25, the material in the upper bin 10 continuously enters the shell 21 through the blanking port 11. After discharging the predetermined mass of material, the control valve 30 is controlled to be closed, and the power source 24 is controlled to stop operating, so that the quantitative addition of the powder to the mixer 200 can be realized. The stirring action of the helical blades 23 can promote blanking. In some embodiments, power source 24 is an electric motor.

Referring to fig. 2 and 4, the blanking port 11 at the bottom of the bin 10 is elongated, and the housing 21 of the blanking mechanism 20 is elongated, and the housing 21 is fixed to the blanking port 11 upward, so as to cover the blanking port 11 in the length direction. The shell 21 is communicated with the bin 10 through a blanking port 11. The material in the bin 10 can efficiently enter the housing 21 of the blanking mechanism 20 through the strip-shaped blanking port 11.

Referring to fig. 2 and 5, in some embodiments, the helical blade 23 includes a first segment of helical blade 231 on a first side of the outfeed channel 25 and a second segment of helical blade 232 on a second side of the outfeed channel 25; the spiral direction of the first section of spiral blade 231 is opposite to the spiral direction of the second section of spiral blade 232, so that the materials on two sides in the shell 21 can be gathered to the middle discharging channel 25 when the spiral blade 23 rotates. When the spiral direction of the first-stage spiral blade 231 is left-handed, the spiral direction of the second-stage spiral blade 232 is right-handed; when the spiral direction of the first-stage spiral blade 231 is right-handed, the spiral direction of the second-stage spiral blade 232 is left-handed.

Specifically, when the power source 24 drives the rotation shaft 22 and the screw blades 23 to rotate in a predetermined direction, the first and second screw blades 231 and 232 drive the material to move in opposite directions. Therefore, by controlling the power source 24 to drive the rotating shaft 22 and the helical blades 23 to rotate in a predetermined direction, the aggregation of the materials at both sides in the driving housing 21 to the middle discharging channel 25 can be realized, thereby realizing the efficient discharge of the materials and avoiding the occurrence of the jamming phenomenon.

Referring to fig. 4, a valve 30 is provided between the blanking mechanism 20 and the agitator 200, and can be used to open or close the discharge passage 25. In some embodiments, the valve 30 is a butterfly valve. Further, the valve 30 is a pneumatic butterfly valve.

A plurality of load cells 40 for mass metering are arranged along the circumference of the silo 10. The load cell 40 may be used to measure the overall mass of the bin 10 and material. As the material in the bin 10 is conveyed into the agitator 200, the material in the bin 10 decreases and the mass decreases. When the measured mass value of the load cell 40 decreases to a predetermined value, the control valve 30 is controlled to close, and the power source 24 is controlled to stop working and discharging.

In the technical scheme of this application, under helical blade's stirring, the material of feed bin bottom can be smooth and easy follow blanking mouth discharge to reduce the condition of card material. In addition, with the help of helical blade, the material can reach the blanking mouth fast, and discharge speed is faster.

In some embodiments, a vibrator is also mounted on the outer wall of the silo 10. A vibrator may be used to facilitate movement of the material within the bin 10.

In addition, the embodiment of the application also provides a concrete mixing equipment, including: the mixer 200 and the powder adding device for the concrete mixing plant provided in the above section. The relevant content can be found in the previous section, and will not be described here again.

In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

In the description of the present application, it should be understood that the terms "left," "right," "upper," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the present application. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims (8)

1. A powder adding device for concrete stirring equipment, comprising:

a stock bin (10) with a strip-shaped blanking port (11) formed at the bottom;

a blanking mechanism (20) comprising a long cylindrical shell (21), a rotating shaft (22) arranged in the shell (21), a spiral blade (23) arranged on the periphery of the rotating shaft (22), and a power source (24) for driving the spiral blade (23) to rotate; the shell (21) is positioned at the bottom of the storage bin (10) and is fixed on a blanking port (11) of the storage bin (10); a discharging channel (25) is further arranged at the bottom of the shell (21);

and a valve (30) arranged on the discharging channel (25).

2. Powder adding device for a concrete mixing plant according to claim 1, characterized in that the helical blade (23) comprises a first section of helical blade (231) at a first side of the discharge channel (25) and a second section of helical blade (232) at a second side of the discharge channel (25); the spiral direction of the first section of spiral blade (231) is opposite to the spiral direction of the second section of spiral blade (232), so that materials on two sides in the shell (21) can be gathered towards the middle discharging channel (25) when the spiral blade (23) rotates.

3. Powder adding device for a concrete mixing plant according to claim 1, characterized in that the valve (30) is a butterfly valve.

4. A powder adding device for a concrete mixing plant according to claim 3, characterized in that the valve (30) is a pneumatic butterfly valve.

5. Powder adding device for a concrete mixing plant according to claim 1, characterized in that the power source (24) is an electric motor.

6. Powder adding device for a concrete mixing plant according to claim 1, characterized in that several load cells (40) for mass metering are arranged in the circumferential direction of the silo (10).

7. Powder adding device for a concrete mixing plant according to claim 1, characterized in that a vibrator is also mounted on the outer wall of the silo (10).

8. A concrete mixing apparatus, comprising:

a stirrer (200);

a powder adding device for a concrete mixing plant as recited in any one of claims 1 to 7.

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