A cement silo structure for a concrete mixing plant

Abstract

This utility model discloses a cement silo structure for a concrete mixing plant, comprising a support frame, a silo body fixedly fitted inside the support frame, a discharge pipe fixedly fitted at the bottom of the silo body, an emergency valve fixedly fitted outside the discharge pipe, a No. 1 motor fixedly mounted on the top of the silo body, a drive shaft fixedly fitted on the output shaft of the No. 1 motor, a connecting rod fixedly fitted outside the drive shaft, a scraper fixedly connected to one end of the connecting rod, a No. 1 conveying impeller fixedly connected to the bottom of the drive shaft, a conveying pipe fixedly fitted on the top of the silo body, a solenoid valve fixedly mounted outside the conveying pipe, a control mechanism inside the silo body, and a crushing mechanism inside the support frame. This cement silo structure avoids the problem of concrete clogging the discharge pipe and hindering discharge when it accumulates, improving the smoothness of concrete discharge and the convenience of concrete loading.

Description

Technical Field

[0001] This utility model relates to the field of concrete preparation, specifically to a cement silo structure for a concrete mixing plant. Background Technology

[0002] A concrete mixing plant is a building material manufacturing equipment consisting of five major systems: a mixing host, a material weighing system, a material conveying system, a material storage system, and a control system, as well as other auxiliary facilities. The working principle of a concrete mixing plant is to use cement as a binder to mix raw materials such as sand, gravel, lime, and cinders, ultimately producing concrete, which is then used as a building material in construction production.

[0003] Cement silos, as the main storage and supply containers for cement, the raw material for concrete, are usually located outdoors. When materials are stored in silos for a long time, the moisture content of the materials increases. As the falling materials flow inside the conical silo, the cross-sectional area decreases as they flow downwards, which compresses the materials themselves and increases friction, causing blockages at the discharge port.

[0004] In existing technologies, such as the Chinese patent announcement CN216465415U entitled "A Cement Silo for a Concrete Mixing Plant", a storage silo is included for storing cement. A feeding pipe is fixedly installed on the top of the storage silo, and a support is fixedly installed below it. A discharge hopper is fixedly installed at the bottom of the storage silo, and a discharge port is opened at the bottom for discharging cement. By setting an independent and detachable discharge hopper at the bottom of the storage silo, a flow sensor is installed inside the discharge hopper at the discharge port to detect the cement flow rate during the discharge process. When the cement flow rate decreases and blockage may occur, the flow sensor transmits this signal to the pulse air pump, which activates the arch breaker to break up any cement adhesion or cement lumps, restoring the smoothness of cement discharge and ensuring a stable cement supply during concrete production.

[0005] In existing technologies for storing concrete, the air pumps are difficult to fully distribute at the bottom of the silo cavity, resulting in insufficient impact on the clumps of concrete at the bottom. This leads to poor discharge of the clumps and, moreover, uneven concrete discharge due to the pulsed operation of the air pumps. Therefore, it is necessary to provide a concrete silo structure for concrete mixing plants to solve these technical problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a cement silo structure for concrete mixing plants, thereby solving problems related to existing cement silo structures for concrete mixing plants.

[0007] To achieve the above-mentioned objectives, this utility model is implemented through the following technical solution:

[0008] A cement silo structure for a concrete mixing plant includes a support frame and a silo body. The silo body is fixedly fitted inside the support frame. A discharge pipe is fixedly fitted to the bottom of the silo body. An emergency valve is fixedly fitted to the outside of the discharge pipe. A No. 1 motor is fixedly installed on the top of the silo body. A drive shaft is fixedly fitted onto the output shaft of the No. 1 motor. A connecting rod is fixedly fitted onto the outside of the drive shaft. A scraper is fixedly connected to one end of the connecting rod. A No. 1 conveying impeller is fixedly connected to the bottom of the drive shaft. A conveying pipe is fixedly fitted to the top of the silo body. A solenoid valve is fixedly installed on the outside of the conveying pipe. A control mechanism is provided inside the silo body. A base plate is fixedly fitted inside the support frame. A crushing mechanism is provided on the top of the base plate.

[0009] Preferably, the first conveying impeller is movably sleeved inside the discharge pipe, and the first conveying impeller is located directly below the drive shaft.

[0010] Preferably, the emergency valve is located directly below the chamber body and below the first conveying impeller.

[0011] Preferably, there are two scrapers, which are symmetrically distributed about the drive shaft.

[0012] Preferably, the control mechanism includes a PLC controller, which is fixedly installed on the top of the chamber, and a pressure sensor is fixedly installed on the side of the inner wall of the chamber. The output terminal of the PLC controller is connected to the output terminal of the pressure sensor, and the output terminal of the PLC controller is connected to the input terminal of the solenoid valve.

[0013] Preferably, the crushing mechanism includes a crushing box, which is fixedly connected to the top of the base plate. A second motor is fixedly installed on the side of the crushing box, and a first gear is fixedly sleeved on the output shaft of the second motor. A second conveying impeller is movably sleeved inside the crushing box, and a second gear is fixedly sleeved on one end of the second conveying impeller.

[0014] This utility model provides a cement silo structure for a concrete mixing plant, which has the following beneficial effects:

[0015] 1. The concrete mixing plant of this utility model uses a cement silo structure. By setting a No. 1 motor, the drive shaft and connecting rod drive the scraper to rotate. The rotating scraper can push and scrape away the concrete that has accumulated on the inner wall of the silo, so that the concrete can quickly fall into the discharge pipe and drive the concrete inside the discharge pipe to be quickly discharged to the outside of the silo. This avoids the problem of concrete clogging the discharge pipe when it accumulates and is difficult to discharge, thereby improving the smoothness of concrete discharge.

[0016] 2. The cement silo structure of this utility model for concrete mixing plant is equipped with a control mechanism to detect the concrete pressure inside the silo. The PLC controller controls the opening of the solenoid valve to open the conveying pipe, so that the concrete can be quickly injected into the silo through the conveying pipe, thereby achieving the effect of automatic concrete feeding and greatly improving the convenience of concrete feeding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a preferred embodiment of the cement silo structure for a concrete mixing plant according to the present invention.

[0018] Figure 2 This is a front view of the scraper in the cement silo structure of the concrete mixing plant of this utility model;

[0019] Figure 3 This is a front view of the cement silo structure for a concrete mixing plant according to this utility model;

[0020] Figure 4 This is a front view of the crushing mechanism in the cement silo structure of the concrete mixing plant of this utility model. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This utility model provides a cement silo structure for a concrete mixing plant, which includes a support frame 1 and a silo body 2 forming the main structure. The silo body 2 is fixedly sleeved inside the support frame 1. A discharge pipe 3 is fixedly sleeved at the bottom of the silo body 2. An emergency valve 4 is fixedly sleeved outside the discharge pipe 3. A No. 1 motor 5 is fixedly installed at the top of the silo body 2. A drive shaft 6 is fixedly sleeved on the output shaft of the No. 1 motor 5. A connecting rod 7 is fixedly sleeved outside the drive shaft 6. A scraper 8 is fixedly connected to one end of the connecting rod 7. A No. 1 conveying impeller 9 is fixedly connected to the bottom of the drive shaft 6. A conveying pipe 10 is fixedly sleeved at the top of the silo body 2. A solenoid valve 11 is fixedly installed outside the conveying pipe 10. A control mechanism 12 is provided inside the silo body 2. A base plate 13 is fixedly sleeved inside the support frame 1. A crushing mechanism 14 is provided on the top of the base plate 13.

[0023] The first conveying impeller 9 is movably sleeved inside the discharge pipe 3, and the first conveying impeller 9 is located directly below the drive shaft 6. By setting the first motor 5, when concrete is being discharged, the first motor 5 is started, so that the first motor 5 can drive the first conveying impeller 9 to rotate through the drive shaft 6. At this time, the first conveying impeller 9 can drive the concrete inside the discharge pipe 3 to be quickly discharged to the outside of the silo 2, thereby avoiding the problem of concrete clogging inside the discharge pipe 3 when it accumulates and is difficult to discharge, thus improving the smoothness of concrete discharge.

[0024] Emergency valve 4 is located directly below silo 2 and below the first conveying impeller 9. By setting emergency valve 4, when concrete discharge leaks, emergency valve 4 is closed, so that emergency valve 4 can seal the discharge pipe 3 in time, thus avoiding the problem of concrete continuing to flow out of silo 2 and causing waste, thereby improving the safety of concrete discharge.

[0025] There are two scrapers 8, which are symmetrically distributed about the drive shaft 6. By setting up the scrapers 8, when concrete is being discharged, the first motor 5 is started, which drives the scrapers 8 to rotate through the drive shaft 6 and the connecting rod 7. At this time, the rotating scrapers 8 can push and scrape away the concrete that has accumulated on the inner wall of the silo 2, so that the concrete can quickly fall into the discharge pipe 3, thus avoiding the problem of the concrete being difficult to discharge smoothly when it is piled up.

[0026] The control mechanism 12 includes a PLC controller 121, which is fixedly installed on the top of the silo 2. A pressure sensor 122 is fixedly installed on the side of the inner wall of the silo 2. The output terminal of the PLC controller 121 is connected to the output terminal of the pressure sensor 122, and the output terminal of the PLC controller 121 is also connected to the input terminal of the solenoid valve 11. By setting up the control mechanism 12, when there is less material inside the silo 2, the pressure sensor 122 can detect the concrete pressure inside the silo 2 and transmit it to the PLC controller 121. At this time, the PLC controller 121 can control the solenoid valve 11 to open, that is, the conveying pipe 10 is opened, so that concrete can be quickly injected into the silo 2 through the conveying pipe 10, thereby achieving the automatic concrete feeding effect and greatly improving the convenience of concrete feeding.

[0027] The crushing mechanism 14 includes a crushing box 141, which is fixedly connected to the top of the base plate 13. A second motor 142 is fixedly installed on the side of the crushing box 141. A first gear 143 is fixedly sleeved on the output shaft of the second motor 142. A second conveying impeller 144 is movably sleeved inside the crushing box 141. A second gear 145 is fixedly sleeved at one end of the second conveying impeller 144. By setting up the crushing mechanism 14, when the agglomerated concrete is discharged into the crushing box 141, the second motor 142 is started, so that the second motor 142 drives the second gear 145 to rotate through the first gear 143, that is, drives the two second conveying impellers 144 to rotate, so that the second conveying impellers 144 can squeeze and convey the agglomerated concrete, thereby achieving the crushing effect during concrete conveying and improving the quality of concrete.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cement silo structure for a concrete mixing plant, characterized in that: It includes a support frame (1) and a hopper body (2). The hopper body (2) is fixedly sleeved inside the support frame (1). A discharge pipe (3) is fixedly sleeved at the bottom of the hopper body (2). An emergency valve (4) is fixedly sleeved on the outside of the discharge pipe (3). A No. 1 motor (5) is fixedly installed at the top of the hopper body (2). A drive shaft (6) is fixedly sleeved on the output shaft of the No. 1 motor (5). A connecting rod (7) is fixedly sleeved on the outside of the drive shaft (6). (7) is fixedly connected to one end of a scraper (8), the bottom of the drive shaft (6) is fixedly connected to a conveying impeller (9), the top of the bin (2) is fixedly fitted with a conveying pipe (10), the outside of the conveying pipe (10) is fixedly installed with a solenoid valve (11), the inside of the bin (2) is provided with a control mechanism (12), the inside of the support frame (1) is fixedly fitted with a bottom plate (13), and the top of the bottom plate (13) is provided with a crushing mechanism (14).

2. The cement silo structure for a concrete mixing plant according to claim 1, characterized in that: The first conveying impeller (9) is movably sleeved inside the discharge pipe (3), and the first conveying impeller (9) is located directly below the drive shaft (6).

3. The cement silo structure for a concrete mixing plant according to claim 1, characterized in that: The emergency valve (4) is located directly below the silo body (2) and below the first conveying impeller (9).

4. The cement silo structure for a concrete mixing plant according to claim 1, characterized in that: The number of scrapers (8) is two, and the two scrapers (8) are symmetrically distributed about the drive shaft (6) as the axis of symmetry.

5. The cement silo structure for a concrete mixing plant according to claim 1, characterized in that: The control mechanism (12) includes a PLC controller (121), which is fixedly installed on the top of the chamber (2). A pressure sensor (122) is fixedly installed on the side of the inner wall of the chamber (2). The output terminal of the PLC controller (121) is connected to the output terminal of the pressure sensor (122), and the output terminal of the PLC controller (121) is connected to the input terminal of the solenoid valve (11).

6. The cement silo structure for a concrete mixing plant according to claim 1, characterized in that: The crushing mechanism (14) includes a crushing box (141), which is fixedly connected to the top of the base plate (13). A second motor (142) is fixedly installed on the side of the crushing box (141). A first gear (143) is fixedly sleeved on the output shaft of the second motor (142). A second conveying impeller (144) is movably sleeved inside the crushing box (141). A second gear (145) is fixedly sleeved at one end of the second conveying impeller (144).

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