Concrete filler reservoir

Abstract

The utility model relates to building material production equipment technical field, concretely relates to a kind of storage device for concrete filler, including tank body, the upper and lower ends of tank body are respectively provided with feed inlet and discharge port, the feed inlet is provided with feed hopper by feed mechanism, the discharge port is provided with the conveying pipeline that is connected with external high-pressure gas source, conveying pipeline and tank body between form the conveying path of filler, one side of tank body is provided with the conveying pipeline that is connected with external high-pressure gas source, to provide the pressurizing pipeline of the inflation path to tank body interior, conveying pipeline side is connected with external high-pressure gas source, to provide the inflation pipeline of the inflation path to conveying path one end, the high-pressure gas source of inflation pipeline interior flow direction conveying path is used to promote filler to present flow state, tank body interior is also provided with the sensor of detecting gas pressure, the sensor is used to decide feed, pressurizing and inflation timing according to pressure value.

Description

Technical Field

[0001] This utility model relates to the field of building material production equipment technology, specifically to a closed storage and pneumatic conveying device for powdered fillers in asphalt concrete. Background Technology

[0002] As a widely used building material, the performance of asphalt concrete largely depends on the proper proportioning and use of various fillers. Among these, powdered fillers (such as mineral powder and limestone powder) play a crucial role in asphalt concrete, improving the density, stability, and durability of the mixture. However, powdered fillers are prone to generating dust during storage and transportation, leading not only to material waste but also severe pollution of the working environment, violating the stringent environmental protection requirements of modern industrial production.

[0003] Currently, traditional methods for storing powdered fillers mostly employ open or semi-closed containers, such as ordinary silos or bagged stacking. These methods struggle to effectively control dust dispersion during feeding and discharging operations. Especially during discharging, the poor flowability of the filler often necessitates manual intervention or mechanical stirring, resulting in low discharging efficiency and a tendency to cause blockages, impacting production continuity. Furthermore, while some pneumatic conveying devices exist, they primarily focus on the conveying process, neglecting the sealing and dust suppression issues during storage, thus failing to achieve integrated and efficient management of storage and conveying.

[0004] With increasingly stringent environmental regulations and ever-increasing demands for efficiency in industrial production, achieving enclosed, dust-suppressed storage of powdered fillers while ensuring rapid and smooth discharge during use has become a pressing technical challenge in this field. Therefore, there is an urgent need for a new type of storage device that can meet environmental protection requirements while maintaining production efficiency, enabling automated and clean storage and transportation of fillers. Utility Model Content

[0005] To address the problems of severe dust generation, easy blockage at discharge, and low efficiency during the storage and transportation of powdered fillers, which fail to balance environmental protection and production efficiency, this utility model provides a storage device for concrete fillers. Through the linkage control of pressurization, air purging, and pressure sensing, it achieves closed dust-suppressed storage and rapid and smooth discharge of powdered fillers, thus balancing environmental protection and production efficiency.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a storage device for concrete filler, including a tank body, with an inlet and an outlet at the upper and lower ends of the tank body respectively. A feed hopper is provided at the inlet through a feeding mechanism, and a conveying pipe connected to an external high-pressure air source is provided at the outlet. A conveying path for the filler is formed between the conveying pipe and the tank body. A pressurizing pipe connected to an external high-pressure air source is provided on one side of the tank body to provide a path for inflating the tank body. An aeration pipe connected to an external high-pressure air source is connected in parallel on one side of the conveying pipe to provide a path for aeration at one end of the conveying path. The high-pressure air source flowing into the conveying path inside the aeration pipe is used to promote the fluidization of the filler. A sensor for detecting gas pressure is also provided inside the tank body. The sensor is used to determine the timing of feeding, pressurizing, and aeration based on the pressure value.

[0007] The aforementioned concrete filler storage device has a first regulating valve for adjusting gas flow and a first check valve for preventing gas backflow connected in series on the upper part of the pressurization pipeline.

[0008] The aforementioned concrete filler storage device has a discharge valve at one end of the conveying path that connects both the conveying pipe and the air blowing pipe.

[0009] The aforementioned concrete filler storage device has a second regulating valve for adjusting the gas flow rate and a second check valve for preventing gas backflow connected in series on the upper part of the air venting pipe.

[0010] The aforementioned concrete filler storage device is equipped with a third regulating valve for adjusting gas flow and a third check valve for preventing gas backflow along the conveying path. The third regulating valve and the third check valve are connected in series only with the conveying pipeline.

[0011] The aforementioned concrete filler storage container is equipped with a level gauge for detecting the internal filler height and an exhaust valve for releasing internal pressure at the top of the tank.

[0012] The aforementioned concrete filler storage device has a pneumatic feed valve as its feeding mechanism.

[0013] The aforementioned concrete filler storage device may have a fourth regulating valve connected in series at one end of the conveying pipeline to control the flow path of an external high-pressure air source.

[0014] The aforementioned concrete filler storage container has support legs arranged at intervals around its perimeter to provide off-ground support.

[0015] The beneficial effects of this utility model are: it realizes the fully enclosed dust suppression storage of the packing, effectively protecting the environment; through pressurization and fluidized aeration, it significantly improves the fluidity and discharge speed of the packing, avoids clogging, and ensures the continuity and efficiency of the production process; the overall structure is compact, the operation is intelligent and convenient, and it simultaneously meets the dual strict requirements of modern production for environmental protection and efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the embodiments and examples.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment.

[0018] Figure 2 This is a schematic diagram of the material conveying pipeline and the air blowing pipeline.

[0019] In the diagram: 1. Tank; 2. Feed hopper; 3. Conveying pipe; 31. Third regulating valve; 32. Third check valve; 4. Pressurizing pipe; 41. First regulating valve; 42. First check valve; 5. Air blowing pipe; 51. Second regulating valve; 52. Second check valve; 6. Discharge valve; 7. Level gauge; 8. Exhaust valve; 9. Fourth regulating valve. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described in conjunction with the preferred embodiments thereof. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0021] It should be noted that the external high-pressure air source (such as an air compressor, high-pressure air tank, etc.) mentioned in this utility model is existing technology, and its specific structure and working principle will not be described in detail here.

[0022] This utility model provides a material storage device for concrete filler, such as... Figure 1-2 As shown, this device is mainly used to solve the problem of closed-loop dust suppression storage and rapid discharge of powdered fillers used in asphalt concrete. The core of this storage device lies in the integration of pressure sensing and multi-channel pneumatic control to achieve automated control of storage, pressurization, fluidization, and conveying, which greatly improves discharge and production efficiency while ensuring environmentally friendly and dust-free production.

[0023] Specifically, the concrete filler storage container includes a tank 1. The tank 1 has an inlet and an outlet at its upper and lower ends, respectively. At the inlet, a feed hopper 2 is installed via a feeding mechanism, through which powdered filler can be fed into the tank. The outlet is connected to a conveying pipe 3, which is connected to an external high-pressure air source and, together with the interior of the tank 1, forms a conveying path for the filler.

[0024] To pressurize the tank 1, a pressurization pipe 4 is provided on one side of the tank 1. This pressurization pipe 4 is also connected to an external high-pressure gas source, forming a path for injecting high-pressure gas into the tank 1, so as to increase the pressure inside the tank when discharging and help the packing flow out.

[0025] To further optimize the discharge process and prevent blockages, an air-blowing pipe 5 is connected in parallel to one side of the conveying pipe 3. This air-blowing pipe 5 is also connected to an external high-pressure air source, and its function is to provide a high-pressure airflow to the beginning of the conveying path, forming an air-blowing path. This high-pressure airflow can penetrate and disturb the packing material accumulated near the discharge port, causing it to become fluidized, thereby significantly improving the fluidity of the packing material and ensuring smooth and rapid discharge.

[0026] The key control element of this invention is a sensor installed inside the tank 1 to detect the internal gas pressure. This sensor monitors the pressure inside the tank in real time, and the control system intelligently determines and executes actions such as feeding, pressurizing, and ventilating based on the pressure value fed back, thereby automating the entire workflow.

[0027] In a preferred embodiment, a first regulating valve 41 for adjusting the gas flow rate and a first check valve 42 for preventing gas backflow are connected in series on the pressurization pipeline 4. The first regulating valve 41 can precisely control the pressurization rate and intensity, while the first check valve 42 can prevent the backflow of materials or gas in the tank, ensuring pipeline safety.

[0028] In a preferred embodiment, a discharge valve 6 is provided at the beginning of the conveying path, which is connected to both the conveying pipe 3 and the aeration pipe 5. This design allows high-pressure gas to act directly on the packing material through the aeration pipe 5 and the discharge valve 6, achieving efficient fluidized aeration.

[0029] In a preferred embodiment, a second regulating valve 51 for adjusting the gas flow rate and a second check valve 52 for preventing gas backflow are connected in series on the gas blowing pipe 5. The second regulating valve 51 controls the blowing intensity, while the second check valve 52 ensures unidirectional gas flow.

[0030] In a preferred embodiment, the conveying path is further provided with a third regulating valve 31 and a third check valve 32 connected in series only with the conveying pipe 3. The third regulating valve 31 is used to finely control the main airflow in the conveying pipe 3 during the conveying stage, while the third check valve 32 prevents the packing or high-pressure gas from flowing backward.

[0031] In a preferred embodiment, the top of the tank 1 is equipped with a level gauge 7 for real-time detection of the internal filler storage height, and an exhaust valve 8 for releasing internal pressure under specific operating conditions (such as before feeding or during maintenance). The level gauge 7 provides inventory warnings, while the exhaust valve 8 ensures operational safety.

[0032] In a preferred embodiment, the feeding mechanism is preferably a pneumatic feed valve. The pneumatic feed valve enables rapid and sealed opening and closing, effectively preventing dust escape during the feeding process and meeting stringent environmental protection requirements.

[0033] In a preferred embodiment, a fourth regulating valve 9 may be connected in series at the end of the conveying pipe 3 near the external high-pressure air source. This fourth regulating valve 9 serves as a master control valve, used to control the on / off state of the high-pressure air source flow path throughout the conveying system.

[0034] In a preferred embodiment, the tank body 1 is provided with multiple legs spaced around its perimeter. These legs provide stable support for the tank body 1 off the ground, facilitating the installation of the bottom discharge pipe and providing a solid foundation for the equipment.

[0035] The working process of the concrete filler storage device of this utility model is briefly described as follows: The filler is added into the tank through the feed hopper 2 under the control of the pneumatic feed valve; when discharge is required, the feed valve and the exhaust valve 8 are closed, the pressurization pipeline 4 is opened first to pressurize the tank, and the air blowing pipeline 5 is opened at the same time or as appropriate to fluidize and disturb the filler at the discharge port; when the pressure in the tank reaches the discharge threshold set by the sensor, the main air passage of the conveying pipeline 3 is opened, and the fluidized filler is quickly and continuously transported to the designated location under the action of pressure difference and airflow. The whole process is carried out in a closed environment, with no dust pollution and high discharge efficiency.

[0036] The concrete filler storage device of this utility model is used in a manner that mainly includes the following steps, achieving automated control through feedback from an internal pressure sensor: 1. Feeding and storage stage: Open the vent valve 8 located at the top of tank 1 to allow the inside of the tank to communicate with the atmosphere and balance the pressure.

[0037] The feeding mechanism (such as a pneumatic feed valve) is activated to add powdered filler from the feed hopper 2 into the tank 1. The level gauge 7 located on the top of the tank monitors the filler height in real time. Once the predetermined capacity is reached, the feeding mechanism and the exhaust valve 8 are closed. This process is completely enclosed, effectively suppressing dust dispersion.

[0038] 2. Material preparation and pressurization stage: When material needs to be discharged, the control system first ensures that the feeding mechanism and the exhaust valve 8 are in the closed state.

[0039] Subsequently, the first regulating valve 41 on the pressurization pipeline 4 is opened, allowing gas from an external high-pressure gas source to enter the tank 1 and pressurize the tank. The first check valve 42 prevents gas and packing from flowing back.

[0040] 3. Fluidized air blowing and conveying stage: Simultaneously or with a delay, the second regulating valve 51 on the air duct 5 is opened. A high-pressure airflow enters the beginning of the conveying path through the discharge valve 6, purging and agitating the packing material accumulated at the discharge port, making it "fluidized" and greatly improving its fluidity.

[0041] When the sensor inside the tank detects that the pressure has reached the preset discharge pressure value, the control system determines that the pressurization and fluidization are sufficient, and then opens the third regulating valve 31 (and / or the fourth regulating valve 9) on the conveying pipeline 3. At this time, the fluidized packing is transported at high speed and continuously to the external point of use under the combined action of the pressure inside the tank and the airflow in the conveying pipeline 3.

[0042] 4. Process control and cycle: Throughout the discharge process, the sensor continuously monitors the pressure inside the tank and maintains a stable output pressure and flow rate by adjusting the regulating valves (first, second, and third regulating valves) of each pipeline.

[0043] When feeding is required after one discharge, repeat the above steps: close all air passages, open exhaust valve 8 and feeding mechanism to feed.

[0044] Through the above methods, the storage device realizes a complete process from closed dust-suppressed storage to rapid, stable, and automated conveying of powdered fillers, perfectly balancing environmental protection requirements and production efficiency.

Claims

1. A storage container for concrete filler, characterized in that: The device includes a tank body with an inlet and an outlet at its upper and lower ends, respectively. A feeding hopper is installed at the inlet via a feeding mechanism, and a conveying pipe connected to an external high-pressure air source is installed at the outlet. The conveying pipe and the tank body form a conveying path for the packing material. A pressurizing pipe connected to an external high-pressure air source is installed on one side of the tank body to provide a path for inflating the tank. An aeration pipe connected in parallel to an external high-pressure air source is installed on one side of the conveying pipe to provide a path for aeration at one end of the conveying path. The high-pressure air flowing into the conveying path from the aeration pipe is used to fluidize the packing material. A gas pressure sensor is also installed inside the tank body to detect gas pressure and determine the timing of feeding, pressurizing, and aeration based on the pressure value.

2. The concrete filler storage device according to claim 1, characterized in that: The upper part of the pressurization pipeline is connected in series with a first regulating valve for adjusting the gas flow rate and a first check valve for preventing gas backflow.

3. The concrete filler storage device according to claim 1, characterized in that: One end of the conveying path is equipped with a discharge valve that connects both the material conveying pipe and the air blowing pipe.

4. The concrete filler storage device according to claim 1, characterized in that: The upper part of the gas blowing pipe is respectively connected in series with a second regulating valve to adjust the gas flow rate and a second check valve to prevent gas backflow.

5. The concrete filler storage device according to claim 1, characterized in that: The conveying path is equipped with a third regulating valve for adjusting the gas flow rate and a third check valve for preventing gas backflow. The third regulating valve and the third check valve are connected in series only with the conveying pipeline.

6. The concrete filler storage device according to claim 1, characterized in that: The top of the tank is equipped with a level gauge for detecting the height of the internal packing material and an exhaust valve for releasing internal pressure.

7. The concrete filler storage device according to claim 1, characterized in that: The feeding mechanism is a pneumatic feeding valve.

8. The concrete filler storage device according to claim 1, characterized in that: One end of the conveying pipeline can be connected in series with a fourth regulating valve to control the flow path of the external high-pressure gas source.

9. The concrete filler storage device according to claim 1, characterized in that: The tank is surrounded by support legs that provide support off the ground.

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