Micro-silicon powder storing, metering and conveying system

Abstract

The utility model discloses a micro silicon powder storing, metering and conveying system which comprises a surge bin in flexible connection with a storage tank, the surge bin is supported through a supporting structure, a weighing sensor is installed between the surge bin and the supporting structure, a driving device is installed at the top of the surge bin, a transmission rod is installed at the output end of the driving device, and the transmission rod is connected with the surge bin. One end of the transmission rod is located in the surge bin and extends into a second discharging pipe of the surge bin, a feeding auger is installed at the end, located on the second discharging pipe, of the transmission rod, the second discharging pipe is connected with a first connecting pipe through a second connecting hose, and the first connecting pipe is connected with a conveying device. According to the feeding device, the material using amount can be recorded and controlled, the materials can be stably conveyed according to the conveying amount of all the materials, the diversified feeding requirements can be met by completing the material amount of different batches through one time or multiple times according to the using amount of a single batch, and the control link is simple and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete production, in particular to a microsilica powder storage metering and conveying system. Background Art

[0002] Microsilica powder is a by-product generated in the process of ferrosilicon and industrial silicon (metallic silicon) smelting in ferroalloy. The fineness of microsilica powder is extremely high, and its specific surface area is 70-100 times that of cement and 50-70 times that of fly ash. The high fineness and specific surface area endow microsilica powder with strong activity and filling property, and it is widely used in cement mortar and concrete, which can significantly improve the strength, density, impermeability, frost resistance, abrasion resistance and corrosion resistance of concrete.

[0003] In the concrete batching of different batches, the dosage of microsilica powder needs to be rationed in real time according to the situation. In specific production, various powder materials need to be mixed in proportion. For the microsilica powder storage tank, the feeding speed is fast after the slide valve is opened, and the feeding is only carried out after rough calculation. With the refined transformation of the feeding equipment, the existing microsilica powder feeding cannot meet the production requirements. Therefore, we propose a microsilica powder storage metering and conveying system to solve the above problems. Content of the Utility Model

[0004] This application provides a microsilica powder storage metering and conveying system, which solves the problem that the current feeding of microsilica powder cannot meet the production requirements.

[0005] This application provides a microsilica powder storage metering and conveying system, including a buffer bin soft-connected to a storage tank. The buffer bin is supported by a support structure, and a weighing sensor is installed between the buffer bin and the support structure. A driving device is installed at the top of the buffer bin, and a transmission rod is installed at the output end of the driving device. One end of the transmission rod is located in the buffer bin and extends into the second feeding pipe of the buffer bin. A feeding auger is installed at one end of the transmission rod located in the second feeding pipe. The second feeding pipe is connected to a first connecting pipe through a second connecting hose, and the first connecting pipe is connected to a feeding device.

[0006] Preferably, a first feeding pipe is installed at the bottom of the storage tank, and the bottom of the first feeding pipe is connected to the second connecting pipe on the buffer bin through a first connecting hose.

[0007] Preferably, both the first connecting hose and the second connecting hose are made of canvas.

[0008] Preferably, the support structure includes an inspection platform installed on the bracket of the storage tank. A limiting rod is installed on one side of the buffer bin through a fixing block. A limiting block is arranged on the inspection platform, and the limiting rod is inserted into the limiting block. The weighing sensor is located between the limiting block and the fixing block.

[0009] Preferably, a loosening shaft is also installed on the transmission rod.

[0010] Preferably, a safety ladder is also installed on the inspection platform.

[0011] Preferably, the feeding device is a spiral feeding pipe or a gas feeding pipe.

[0012] Preferably, the first connecting pipe is equipped with a gate valve.

[0013] It can be seen from the above technical scheme that the present application provides a microsilica powder storage, metering and conveying system. When the present application is in use, the material is discharged from the storage tank. After the fly ash enters the buffer bin, the weight value of the buffer bin can be directly recorded. The current weight can also be subtracted from the weight value before feeding to obtain the discharge value. The value of each discharge is superimposed to obtain the total weight value of the material added to the bin to obtain the material amount. After the storage tank is discharged, the driving device can be started to drive the feeding auger to discharge the material through the transmission rod. According to the weight loss of the buffer bin per unit time, the feeding auger can be adjusted in real time to ensure stable feeding.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Through the setting of buffer bin and weighing sensor, the discharge situation of buffer bin can be monitored in real time by weighing. It can discharge materials stably according to the discharge demand and at the required speed, and can also monitor the overall discharge to record the material amount;

[0016] 2. Through the setting of the transmission rod and the feeding auger, the material discharge speed of the buffer bin can be controlled, the feeding is stable, and it is not easy to be blocked, and the material can be stably transported to the mixing equipment.

[0017] In summary, the material quantity can be recorded and controlled in the present application so that the material can be stably conveyed according to the conveying quantity of each material. Different batches of material quantities can also be completed once or multiple times according to the quantity of a single batch to meet diversified feeding requirements. The control link is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the implementation cases. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a structural schematic diagram of a micro silicon powder storage, metering and conveying system proposed by the utility model;

[0020] Figure 2The enlarged view of the structure at position A of a microsilica powder storage, metering and conveying system proposed by the present utility model.

[0021] In the figure: 1 storage tank, 2 first blanking pipe, 3 first connecting hose, 4 buffer bin, 5 driving device, 6 transmission rod, 7 loosening shaft, 8 feeding auger, 9 first connecting pipe, 10 feeding device, 11 second connecting hose, 12 second blanking pipe, 13 safety ladder, 14 inspection platform, 15 support, 16 second connecting pipe, 17 fixing block, 18 limiting rod, 19 weighing sensor, 20 limiting block. Specific embodiments

[0022] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0023] See Figure 1-2 , a microsilica powder storage, metering and conveying system. This application is mainly applied to the front end of mixing. Currently, there are two mixing methods. The first is to directly add different raw materials into the mixing equipment for mixing, and only the raw materials with a set mass fraction need to be provided. The second is the newly installed refined mixing, that is, all raw materials are conveyed by the same feeding device at a set blanking speed, which can be gas conveying or other conveying methods. In the conveying link, the first mixing of each material is carried out, and then through the mixing equipment, the second mixing is completed and then discharged. This method can achieve continuous production. As long as the precision control is appropriate, its mixing efficiency and quality are higher than the first mixing method. While taking into account the first mixing, this application can meet the requirements of the second mixing. Specifically, it includes a buffer bin 4 that is softly connected to the storage tank 1. The buffer bin 4 is a reduced tank body, mainly used to buffer the large blanking volume in the storage tank 1, so that it can be converted into a controllable blanking method. The buffer bin 4 is supported by a support structure, and a weighing sensor 19 is installed between the buffer bin 4 and the support structure. Through the support structure and the weighing sensor 19, the mass of the buffer bin 4 can be detected in real time, so that both the blanking volume of the storage tank 1 and the blanking volume of the buffer bin 4 per unit time can be obtained, thereby controlling the blanking. The specific control can connect the weighing sensor 19 to the central control equipment and monitor and control through the central control equipment;

[0024] A driving device 5 is installed at the top of the buffer bin 4. The driving device 5 consists of a coupling and a motor. For details, reference can be made to the prior art. The output end of the driving device 5 is installed with a transmission rod 6. One end of the transmission rod 6 is located inside the buffer bin 4 and extends into the second blanking pipe 12 of the buffer bin 4. A feeding auger 8 is installed at one end of the transmission rod 6 located in the second blanking pipe 12. During installation, the feeding auger 8 and the second blanking pipe 12 are closely fitted. The feeding auger 8 can not only play the role of feeding, but also support the transmission rod 6 to reduce its radial movement range within a reasonable range. Therefore, in this application, no installation components need to be provided at one end of the transmission rod 6 located in the second blanking pipe 12. In this application, the blanking speed of fly ash is adjusted by the rotation speed of the feeding auger 8. The specific blanking speed can be referred to the change of the weighing sensor 19 per unit time. The second blanking pipe 12 is connected with a first connecting pipe 9 through a second connecting hose 11. The first connecting pipe 9 is connected with a feeding device 10. The distribution of fly ash is completed through the feeding device 10. In the specific design, the feeding device 10 is a spiral feeding pipe or a pneumatic conveying pipe, and multiple powdery materials can be conveyed through the same feeding device 10, that is, the above-mentioned second mixing method. Through this application, the blanking amount of fly ash can be controlled to complete uniform mixing.

[0025] In the present utility model, a first blanking pipe 2 is installed at the bottom of the storage tank 1. It should be understood that a plug valve or other control valves are installed on the first blanking pipe 2 of this application to control the blanking of the storage tank 1. The bottom of the first blanking pipe 2 is connected with a second connecting pipe 16 on the buffer bin 4 through a first connecting hose 3. The setting of the flexible connection can improve the accuracy of the weighing sensor 19.

[0026] In the present utility model, both the first connecting hose 3 and the second connecting hose 11 are made of canvas, which is convenient for manufacturing and installation, and the canvas has good wear resistance, improving the service life while ensuring flexibility.

[0027] In the present utility model, the support structure includes an inspection platform 14 installed on the bracket 15 of the storage tank 1. In this application, the buffer bin 4 is supported by the inspection platform 14. A safety ladder 13 is also installed on the inspection platform 14, allowing access to the inspection platform 14 for inspection and the maintenance of related equipment through the inspection platform 14. Specifically, a limiting rod 18 is installed on one side of the buffer bin 4 through a fixing block 17. A limiting block 20 is provided on the inspection platform 14, and a limiting hole corresponding to the limiting rod 18 is provided on the limiting block 20. The limiting rod 18 is inserted into the limiting block 20 to support the buffer bin 4 and prevent the buffer bin 4 from moving horizontally. During specific installation, the friction between the limiting block 20 and the limiting rod 18 can be reduced through bearings or lubricating oil, thereby improving the accuracy of the load cell 19. The load cell 19 is located between the limiting block 20 and the fixing block 17, and the weight of the buffer bin 4 all falls on the load cell 19 for weighing. Three or more load cells 19 can be provided to improve the stability and accuracy of its support and measurement.

[0028] In some embodiments, a loosening shaft 7 is also installed on the transmission rod 6. In order to prevent the fly ash from being blocked during the feeding process, when the transmission rod 6 rotates, the fly ash can be stirred by the loosening shaft 7 to reduce the blockage during the feeding process.

[0029] In some embodiments, since some batching does not require fly ash or other raw materials, although the feeding auger 8 can prevent blockage, since most of the raw materials are fine powders, some materials will still fall. Therefore, a plug valve is installed on the first connecting pipe 9. When this material is not needed, the first connecting pipe 9 is directly closed through the plug valve, thereby avoiding the situation of material leakage.

[0030] From the above technical solutions, it can be seen that when this application is in use, first, the storage tank 1 discharges materials. After the fly ash enters the buffer bin 4, the weight value of the buffer bin 4 can be directly recorded for the first mixing situation. It is also possible to subtract the weight value before feeding from the current weight to obtain the feeding value, and add up the values of each feeding to obtain the total weight of the feeding into the bin, thereby obtaining the consumption amount, and record and control the feeding of the buffer bin 4 per unit time for the second mixing situation. Through the total feeding amount and the feeding per unit time, the total consumption amount and the specific feeding speed of the same batch are detected simultaneously for precise control. Specifically, when the storage tank 1 discharges materials, the feeding auger 8 does not work. After the storage tank 1 finishes discharging materials and the load cell 19 detects and records the specific mass, the driving device 5 is then started, and the feeding auger 8 is driven by the transmission rod 6 to discharge materials. During the discharging process, the rotation speed of the feeding auger 8 can be adjusted in real time according to the weight reduction of the buffer bin 4 per unit time, so that the feeding is carried out stably at the set speed.

[0031] Other embodiments of the present application will be readily contemplated by those skilled in the art upon consideration of the specification and practice of the application disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include known common general knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and examples are only regarded as exemplary, and the true scope of the present application is pointed out by the claims.

[0032] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The embodiments of the present application described above do not constitute a limitation on the protection scope of the present application.

Claims

1. A microsilica powder storage, metering and conveying system, comprising a buffer bin (4) softly connected to a storage tank (1), characterized in that: The buffer bin (4) is supported by a supporting structure, and a weighing sensor (19) is installed between the buffer bin (4) and the supporting structure. A driving device (5) is installed on the top of the buffer bin (4), and a transmission rod (6) is installed on the output end of the driving device (5). One end of the transmission rod (6) is located in the buffer bin (4) and extends into a second discharge pipe (12) of the buffer bin (4). A feeding auger (8) is installed at one end of the transmission rod (6) located in the second discharge pipe (12). The second discharge pipe (12) is connected to a first connecting pipe (9) via a second connecting hose (11), and the first connecting pipe (9) is connected to a feeding device (10).

2. A microsilica powder storage, metering and conveying system according to claim 1, characterized in that: A first feed pipe (2) is installed at the bottom of the storage tank (1), and the bottom of the first feed pipe (2) is connected to a second connecting pipe (16) on the buffer bin (4) via a first connecting hose (3).

3. A microsilica powder storage, metering and conveying system according to claim 2, characterized in that: The first connecting hose (3) and the second connecting hose (11) are both made of canvas.

4. A microsilica powder storage, metering and conveying system according to claim 1, characterized in that: The support structure comprises an inspection platform (14) installed on a bracket (15) of the storage tank (1); a limit rod (18) is installed on one side of the buffer bin (4) through a fixed block (17); a limit block (20) is provided on the inspection platform (14); the limit rod (18) is inserted into the limit block (20); and the weighing sensor (19) is located between the limit block (20) and the fixed block (17).

5. A microsilica powder storage, metering and conveying system according to claim 4, characterized in that: A safety ladder (13) is also installed on the inspection platform (14).

6. A microsilica powder storage, metering and conveying system according to claim 1, characterized in that: A loosening shaft (7) is also mounted on the transmission rod (6).

7. A microsilica powder storage, metering and conveying system according to claim 1, characterized in that: The material conveying device (10) is a spiral material conveying pipe or a gas conveying pipe.

8. A microsilica powder storage, metering and conveying system according to claim 1, characterized in that: The first connecting pipe (9) is provided with a gate valve.

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