Material mixing and preparing system

Abstract

The invention discloses a material mixing and preparing system which comprises a plurality of stock bins, a plurality of feeding mechanisms, a plurality of measuring bins, a mixer and a controller, and first switch valves are arranged at outlets in the bottoms of the stock bins; the metering bin comprises a bin body and a weighing sensor arranged at the bottom of the bin body, and a second switch valve is arranged at a discharging port in the bottom of the bin body. Discharging ports of all the metering bins are connected with a material mixing machine through pipelines, and all the first switch valves, all the second switch valves, all the weighing sensors, the feeding mechanism and the material mixing machine are electrically connected with a controller. Each stock bin continuously and intermittently feeds materials to the corresponding metering bin through the corresponding feeding mechanism, during single-time feeding, each weight sensor detects the weight of the materials in the corresponding bin body, so that the matching accuracy of the various materials during each-time feeding is controlled, then, the various materials jointly fall into the mixer to be stirred, and the mixing efficiency is improved. Proportioning accuracy and mixing uniformity of products are improved, and product quality is remarkably improved.

Description

Technical Field

[0001] The invention relates to the field of material transportation, and in particular to a material mixing and preparing system. Background Art

[0002] The existing material mixing and preparation system includes multiple silos, multiple feeding mechanisms, mixers, elevators and finished product silos. A metering scale or rotor scale is installed under the discharge port of each silo. During operation, various types of materials enter the mixer from the corresponding silo discharge port, through the corresponding rotor scale and feeding mechanism. Then, the mixer starts to mix the materials. After mixing, the materials are transported to the finished product silo through the elevator. However, due to the impact and vibration during the flow of materials, the measurement errors occur, resulting in low ratio accuracy. Summary of the invention

[0003] The object of the present invention is to provide a material mixing and preparing system, which has high mixing ratio accuracy and high mixing uniformity for mixing various types of materials.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A material mixing and preparation system comprises a plurality of silos, a feeding mechanism, a metering silo, a mixer and a controller, wherein each silo is used to store a single type of material, and a first switch valve for opening and closing the outlet is provided at the outlet at the bottom of each silo; the number of the feeding mechanisms and the metering silos corresponds to the silos one by one, the feeding mechanism is used to receive the material outputted by the corresponding silo and transmit it to the corresponding metering silo, each metering silo comprises a silo body for receiving the arriving material and a weighing sensor provided at the bottom of the silo body for real-time detection of the weight of the arriving material in the silo body, and a second switch valve is provided at the outlet at the bottom of the silo body; the outlet of all metering silos The ports are connected to the mixer through pipelines, and all the first switch valves, all the second switch valves, all the weighing sensors, the feeding mechanism and the mixer are electrically connected to the controller; wherein, the mixer continuously stirs, and each silo feeds materials to the corresponding metering silo continuously and intermittently through the corresponding feeding mechanism. When feeding once, each weighing sensor detects that the accumulated material received in the corresponding metering silo reaches a preset weight, and transmits a signal to the controller. The controller controls the closing of the corresponding first switch valve and the feeding mechanism. After the materials in all the metering silos are accumulated, all the second switch valves are opened, and all kinds of materials fall into the mixer for stirring.

[0006] By adopting the above technical solution, each silo continuously and intermittently feeds materials to the corresponding metering silo through the corresponding feeding mechanism. Each time feeding, the weight of the material in the corresponding silo is detected by each weight sensor, thereby controlling the accuracy of the proportion of various materials during each feeding. Afterwards, various materials fall into the mixer together for mixing, which improves the product's proportion accuracy and mixing uniformity, and significantly improves product quality.

[0007] In a specific embodiment of the present invention: the feeding mechanism is a screw conveyor, which includes an outer tube, a spiral core shaft arranged in the outer tube, and a motor arranged outside the outer tube for driving the spiral core shaft, and the two ends of the outer tube are respectively connected to the outlet of the corresponding silo and the feed port of the metering silo.

[0008] In a specific embodiment of the present invention: it also includes an elevator and a finished product bin, the elevator is located on one side of the mixer, the feed port of the elevator is connected to the discharge port of the mixer through a pipeline, and the elevator is connected to the finished product bin through an air chute.

[0009] In a specific embodiment of the present invention: dust collectors are provided on the tops of all the silos, the tops of the finished product silos, the tops of the mixers and the tops of the air chutes, and all the dust collectors are electrically connected to the controller.

[0010] In a specific embodiment of the present invention: each of the silos is provided with a silo frame for supporting the silo on the outside, each of the silo frames is provided with a first blowing device below the corresponding silo, each of the silos is provided with an air inlet at the bottom, and each of the first blowing devices is connected to the corresponding air inlet through a pipeline. With the above structure, the material is prone to cake formation after being stored in the silo for a long time, resulting in a relatively slow material discharge speed. In this way, the high-pressure gas generated by the first blowing device is blown into the silo from the air inlet at the bottom of the silo, so that the material in the silo flows and can be discharged more smoothly from the outlet of the silo, thereby significantly improving the material discharge speed.

[0011] In a specific embodiment of the present invention: a mixer frame for supporting the mixer is provided outside the mixer, a second blowing device is provided on the mixer frame below the mixer, and the mixer and the second blowing device are connected via a pipeline. By adopting the above technical solution, the high-pressure gas generated by the second blowing device is blown into the mixer, so that the materials in the mixer flow, so that various materials can be mixed more fully, thereby improving product quality.

[0012] In a specific implementation manner of the present invention: the first air blowing device and the second air blowing device are both Roots blowers.

[0013] In a specific implementation manner of the present invention: the first switch valve and the second switch valve are pneumatic valves.

[0014] In summary, in the present invention, each silo continuously and intermittently feeds materials to the corresponding metering silo through the corresponding feeding mechanism. During a single feeding, each weight sensor detects the weight of the material in the corresponding silo, thereby controlling the accuracy of the proportion of each type of material during each feeding. Afterwards, all types of materials fall into the mixer for mixing, which improves the accuracy of the product proportion and the uniformity of mixing, and significantly improves the product quality. The high-pressure gas generated by the first blowing device is blown into the silo from the air inlet at the bottom of the silo, so that the material in the silo flows and can be discharged more smoothly from the outlet of the silo, thereby significantly improving the material discharge speed. The high-pressure gas generated by the second blowing device is blown into the mixer, so that the material in the mixer flows, so that various materials can be mixed more fully, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a structural schematic diagram of a material mixing and preparing system of the present invention;

[0017] Figure 2 is a top view of the material mixing and preparing system of the present invention;

[0018] Figure 3 yes Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1 and Figure 2 As shown, the present invention is a material mixing and preparing system, which includes a plurality of silos 10 , a feeding mechanism 20 , a metering silo 30 and a mixer 40 .

[0021] Combination Figure 3 As shown, in this embodiment, the number of the silos 10 is 4. Each silo 10 is used to store a single type of material, and a first switch valve 11 for opening and closing the outlet is provided at the outlet at the bottom of each silo 10.

[0022] In this embodiment, the number of feeding mechanisms 20 is configured to correspond to the silos 10. The feeding mechanism is used to receive the material output from the corresponding silo 10 and transmit it to the corresponding metering silo 30. The feeding mechanism 20 is a screw conveyor, which includes an outer tube 21, a screw mandrel (not shown in the figure) disposed in the outer tube 21, and a motor 22 disposed outside the outer tube for driving the screw mandrel. The two ends of the outer tube are respectively connected to the outlet of the corresponding silo 10 and the feed port of the corresponding metering silo 30.

[0023] like Figure 3 As shown, in this embodiment, the number of metering bins 30 is configured to correspond to the material bins 10. Each metering bin 30 includes a bin body 31 for receiving the arriving materials and a weighing sensor (not shown in the figure) provided at the bottom of the bin body for real-time detection of the weight of the arriving materials in the bin body. A second switch valve 32 is provided at the discharge port at the bottom of the bin body 31.

[0024] The discharge ports of all metering bins 30 are connected to the mixer 40 through pipelines.

[0025] The machine also includes an elevator 50 and a finished product bin 60. The elevator 50 is located on one side of the mixer 40. The discharge port of the mixer 40 is connected to the feed port of the elevator 50 through a pipeline. The elevator 50 is connected to the finished product bin 60 through an air chute 51.

[0026] In this embodiment, both the first switch valve 11 and the second switch valve 32 are pneumatic valves.

[0027] In the present invention, a controller is also provided. All first switch valves 11, all second switch valves 32, all weighing sensors, the feeding mechanism 20, and the mixer 40 are electrically connected to the controller.

[0028] Dust collectors 9 are provided on the top of all silos 10, the top of finished product silos 60, the top of mixers 40 and the top of air chutes. Dust collectors 9 are used to absorb dust generated by materials. All dust collectors 9 are electrically connected to the controller.

[0029] A silo frame 101 for supporting the silo 10 is provided on the outside of the silo 10. A first blowing device 70 is provided on each silo frame 101 below the silo 10. Each silo 10 has an air inlet at the bottom. The first blowing device 70 is connected to the corresponding air inlet through a pipeline. Since the material is easily caked after being stored in the silo 10 for a long time, it will block the outlet, resulting in a relatively slow material discharge speed. In this way, the high-pressure gas generated by the first blowing device is blown into the silo from the air inlet at the bottom of the silo 10, so that the material in the silo 10 flows and can be discharged more smoothly from the outlet of the silo, thereby increasing the material discharge speed. Here, multiple air inlets can be set at the bottom of the silo 10, and high-pressure gas can be blown into the silo from multiple directions through pipelines and the first blowing device, respectively, thereby accelerating the flow of materials.

[0030] A mixer frame 401 for supporting the mixer is provided outside the mixer 40. A second air blowing device 80 is provided on the mixer frame 401 below the mixer 40. The mixer 40 and the second air blowing device 80 are connected by a pipeline. With the above technical solution, the high-pressure gas generated by the second air blowing device is blown into the mixer, so that the materials in the mixer flow, so that various materials can be mixed more fully, the mixing uniformity is improved, and thus the quality of the product is improved.

[0031] In this embodiment, the first air blowing device 70 and the second air blowing device 80 are both Roots blowers.

[0032] The above is the material mixing configuration system of the present invention, and its working method is as follows:

[0033] During operation, the mixer is started, all the first blowing devices 70 are started, and the high-pressure gas generated by the first blowing devices 70 is blown in from the air inlet, so that the materials in each silo 10 are fluidized. Subsequently, all the first switch valves 11 are controlled to open, and all the screw conveyors are started. Various materials enter the corresponding metering bin 30 under the conveyance of the corresponding screw conveyors. Here, each silo 10 continuously and intermittently feeds the corresponding metering bin through the corresponding feeding mechanism. When feeding a single time, each weighing sensor detects the accumulation of materials in its corresponding metering bin. Once the reading of a certain weight sensor reaches the preset weight threshold, it will immediately send a signal to the controller, indicating that the accumulation of materials in the metering bin has been completed. After receiving the signal, the controller will immediately control the closing of the corresponding first switch valve 11 to prevent further materials from entering the metering bin 30, and at the same time stop the feeding mechanism 20 that feeds the metering bin 30 to ensure accurate control of the amount of materials. When all the metering bins 30 confirm that the accumulated materials have reached a preset weight through their respective weighing sensors, the controller controls to open all the second switch valves 32 , and the materials enter the mixer 40 .

[0034] When the value of a weight sensor is 0, it will send a signal to the controller, indicating that the material in the metering bin 30 has been emptied. After receiving the signal, the controller controls the closing of the corresponding second switch valve 32, opens the corresponding first switch valve 11 to discharge the material, and starts the corresponding feeding mechanism 20 to feed the metering bin 30. The metering bin 30 starts to receive and accumulate a new round of materials.

[0035] As the material falls into the mixer 40, the mixer 40 stirs the material. At the same time, the controller controls the second blowing device 80 to start, and the high-pressure gas generated by the second blowing device 80 is blown into the mixer, so that the material in the mixer 40 flows and the stirring is accelerated.

[0036] After the various materials are mixed in the mixer 40, the mixer 40 outputs the finished materials to the elevator 50. Then, the elevator 50 transports the finished materials to the finished product bin 60 through the air chute 51. In each process, the corresponding dust collector 9 is turned on to absorb the dust generated by the materials to avoid pollution to the environment.

[0037] It can be seen from the above detailed description that each silo in the present invention continuously and intermittently feeds materials to the corresponding metering silo through the corresponding feeding mechanism. During a single feeding, each weight sensor detects the weight of the material in the corresponding silo, thereby controlling the accuracy of the proportion of each type of material during each feeding. After that, all types of materials fall into the mixer for mixing, which improves the accuracy of the product proportion and the uniformity of mixing, and significantly improves the product quality. Among them, the high-pressure gas generated by the first blowing device is blown into the silo from the air inlet at the bottom of the silo, so that the material in the silo flows and can be discharged more smoothly from the outlet of the silo, thereby significantly improving the material discharge speed. In addition, the high-pressure gas generated by the second blowing device is blown into the mixer, so that the material in the mixer flows, so that various materials can be mixed more fully, thereby improving product quality.

[0038] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A material mixing and preparation system, characterized in that: It includes multiple silos, feeding mechanisms, metering silos, mixers and controllers. Each silo is used to store a single type of material. A first switch valve for opening and closing the outlet is provided at the outlet at the bottom of each silo. The number of feeding mechanisms and metering silos corresponds to the silos one by one. The feeding mechanism is used to receive the material output from the corresponding silo and transmit it to the corresponding metering silo. Each metering silo includes a silo body for receiving the arriving material and a weighing sensor provided at the bottom of the silo body for real-time detection of the weight of the arriving material in the silo body. A second switch valve is provided at the outlet at the bottom of the silo body. The outlets of all metering silos are connected through pipelines. Connected to the mixer, all the first switch valves, all the second switch valves, all the weighing sensors, the feeding mechanism and the mixer are electrically connected to the controller; wherein, the mixer continuously stirs, and each silo feeds the corresponding metering silo continuously and intermittently through the corresponding feeding mechanism. When feeding once, each weighing sensor detects that the accumulated material received in the corresponding metering silo reaches a preset weight, and transmits a signal to the controller. The controller controls the closing of the corresponding first switch valve and the feeding mechanism. After the accumulation of materials in all the metering silos is completed, all the second switch valves are opened, and all kinds of materials fall into the mixer for stirring.

2. The material mixing and preparation system according to claim 1, characterized in that: The feeding mechanism is a screw conveyor, which includes an outer tube, a spiral core shaft arranged in the outer tube, and a motor arranged outside the outer tube for driving the spiral core shaft. The two ends of the outer tube are respectively connected to the outlet of the corresponding silo and the feed port of the metering silo.

3. The material mixing and preparation system according to claim 1, characterized in that: It also includes an elevator and a finished product bin, wherein the elevator is located at one side of the mixer, the feed port of the elevator is connected to the discharge port of the mixer through a pipeline, and the elevator is connected to the finished product bin through an air chute.

4. The material mixing and preparation system according to claim 1, characterized in that: Each of the silos is provided with a silo frame for supporting the silo on the outside, a first blowing device is provided on the silo frame below the silo, an air inlet is opened at the bottom of each silo, and each of the first blowing devices is connected to the corresponding air inlet through a pipeline.

5. The material mixing and preparation system according to claim 4, characterized in that: A mixer frame for supporting the mixer is disposed outside the mixer, a second air blowing device is disposed below the mixer on the mixer frame, and the mixer is connected to the second air blowing device via a pipeline.

6. The material mixing and preparation system according to claim 5, characterized in that: The first air blowing device and the second air blowing device are both Roots blowers.

7. The material mixing and preparation system according to claim 1, characterized in that: The first switch valve and the second switch valve are pneumatic valves.

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