Material conveying device

Abstract

The utility model discloses a material conveying device, and relates to the technical field of conveying equipment, the material conveying device comprises a material storage assembly and a conveying assembly, the material storage assembly comprises a material storage bin in which a preset amount of materials are stored, and the material storage bin is provided with a discharge port and at least two first input ports which are communicated with the material storage bin; the conveying assembly comprises first medium sources and a conveying pipe set, the conveying pipe set comprises at least two conveying pipes, and the first medium sources communicate with the corresponding first input ports through the conveying pipes correspondingly. Media act on different directions of materials in the storage bin through the multiple conveying pipes respectively, so that acting force of the media is dispersed to the surfaces of the materials in larger areas, impact of the media on the materials is reduced, and damage of the materials is reduced. By means of the check valve, the problem that due to the fact that the medium pressure in different conveying pipes is inconsistent, part of media flow back to the first medium source from the conveying pipes with the small conveying pressure under the action of the pressure difference, and materials cannot be effectively conveyed is solved, and the conveying efficiency of the materials is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, and in particular to a material conveying device. Background Technology

[0002] In existing technologies, materials such as powders are prone to breakage during transportation, and the broken materials are unqualified and cannot be used for subsequent production. Therefore, how to reduce material breakage during transportation has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0003] The purpose of this invention is to provide a material conveying device to reduce material breakage during the conveying process.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model provides a material conveying device, the material conveying device comprising:

[0006] A material storage assembly, comprising a storage bin for storing a preset amount of material, the storage bin having a discharge port connected to the storage bin, and at least two first input ports;

[0007] A conveying assembly includes a first medium source and a conveying pipe group. The conveying pipe group includes at least two conveying pipes. The first end of each conveying pipe is connected to the first medium source, and the second end of each conveying pipe is connected to a corresponding first input port. The first medium source is used to supply medium to the storage bin and to convey materials by the medium. The medium and the materials are set up independently.

[0008] Check valves are provided on all conveying pipes. The check valves are used to prevent the medium entering the storage silo from flowing back to the first medium source through the conveying pipe.

[0009] Preferably, the storage assembly includes a weighing unit for measuring the weight of materials. The weighing unit has a cavity, and a first inlet and a first outlet connected to the cavity. The first inlet is used to fill materials, and the first outlet is connected to a second inlet of the storage bin through a first conveying pipe.

[0010] The storage bin is connected to the cavity or the outside through an exhaust pipe, and the exhaust pipe is equipped with an exhaust valve.

[0011] And / or, the first conveying pipe is provided with a first discharge valve and a first inlet valve in sequence along the material conveying direction;

[0012] And / or, the first discharge port and the first inlet port are arranged sequentially from top to bottom; or, the weighing unit or the first conveying pipe is connected to a conveying component for conveying the material in the cavity to the storage bin;

[0013] And / or, the weighing unit includes several weight sensors connected to the cavity, and several vibrators.

[0014] Preferably, the discharge port is located at the bottom of the storage silo, and the conveying pipe assembly includes a first conveying pipe, a second conveying pipe and a third conveying pipe. The first end of the first conveying pipe is connected to the first medium source, the second end of the first conveying pipe is connected to the first ends of the second conveying pipe and the third conveying pipe, the second end of the second conveying pipe is connected to the top of the storage silo, and the second end of the third conveying pipe is connected to the bottom of the storage silo.

[0015] The first conveying pipe is provided with a first valve, a first pressure reducing valve, and a second valve in sequence along the direction of medium flow; the second conveying pipe is provided with a third valve and a first check valve in sequence along the direction of medium flow; the third conveying pipe is provided with a fourth valve and a second check valve in sequence along the direction of medium flow; or, the storage silo is connected to a level gauge, a safety valve, and a pressure gauge.

[0016] Preferably, the conveying assembly includes a second conveying pipe, and the outlet is connected to the material collection bin through the second conveying pipe. The second conveying pipe is provided with a sixth valve, a second pressure reducing valve, a fifth valve and several second inlets connected to a second medium source in sequence along the material conveying direction. The second medium source is used to supply medium into the second conveying pipe.

[0017] Wherein, the first force applied to the material by the first medium source is less than the force required to transport the material from the storage bin to the material collection bin;

[0018] When the material conveying device is in the conveying state, the second medium source intermittently supplies medium into the second conveying pipe.

[0019] Preferably, the conveying assembly includes a second conveying pipe, the input end of which is connected to the second medium source, and a plurality of ejectors are provided on the second conveying pipe along the material conveying direction, the ejectors being connected to the corresponding second input ports;

[0020] And / or, the material collection bin is connected to an air vent valve.

[0021] Preferably, the material conveying device includes a humidity sensor communicating with the cavity;

[0022] And / or, the first conveying pipe is provided with a cleaning unit, the cleaning unit including an iron remover provided on the first conveying pipe, and / or a drying element communicating with the cavity, and / or an electrostatic eliminator communicating with the cavity or the first conveying pipe.

[0023] Preferably, the second conveying pipe includes a variable diameter section, the inner diameter of which gradually increases along the material conveying direction; the inner wall of the second conveying pipe is provided with a resistance-reducing layer for reducing frictional resistance.

[0024] Preferably, the second conveying pipe includes a corrosion-resistant layer, a reinforcing layer and a wear-resistant layer arranged sequentially from the inside to the outside; and / or, a first guide vane is provided at one end of the second conveying pipe near the material collection bin.

[0025] Preferably, the second conveying pipe is connected to a flow rate sensor; the flow rate sensor, the first medium source, and the second medium source are all signal-connected to the controller; when the controller determines that the flow rate of the material exceeds a preset range based on the feedback from the flow rate sensor, it adjusts the operating status of the first medium source and the second medium source.

[0026] Preferably, the second conveying pipe is an integral structure, and the conveying assembly includes several support frames connected to the second conveying pipe for supporting the second conveying pipe; a second guide vane is provided at the corner of the second conveying pipe and arranged along the direction of the corner; the conveying assembly includes a third conveying pipe, the two ends of the third conveying pipe are respectively connected to the discharge port and the material collection bin, a seventh valve is provided on the third conveying pipe, and the inner diameter of the third conveying pipe is smaller than the inner diameter of the second conveying pipe.

[0027] The present invention achieves the following technical advantages over the prior art:

[0028] The material conveying device of this utility model includes a storage component and a conveying component. The storage component includes a storage bin containing a preset amount of material. The storage bin has a discharge port and at least two first input ports connected to it. The conveying component includes a first medium source and a conveying pipe assembly. The conveying pipe assembly includes at least two conveying pipes. The first medium source is connected to the corresponding first input ports through the conveying pipes. The medium and the material are set up independently. The first medium source inputs the medium into the storage bin through the conveying pipes, and the medium pushes the material out of the storage bin for subsequent conveying or production operations. Where the total amount of medium supplied to the storage bin per unit time remains constant, this utility model uses multiple conveying pipes to distribute the medium separately... By applying the medium to different locations within the storage silo, the force of the medium is dispersed over a larger area of ​​the material surface, reducing the impact of the medium on the material and minimizing material breakage. Furthermore, each conveying pipe is equipped with a check valve to prevent the medium entering the storage silo from flowing back to the first medium source. This reduces the problem of some medium flowing back to the first medium source from the conveying pipe with the lower conveying pressure due to pressure differences in different conveying pipes, thus preventing effective material conveying and ensuring material conveying efficiency. In short, this invention reduces material breakage while ensuring material conveying efficiency; that is, this invention reduces material breakage during the conveying process. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the material conveying device.

[0031] Among them, 1. First valve; 2. First pressure reducing valve; 3. Second valve; 4. Fourth valve; 5. Second check valve; 6. Third valve; 7. First check valve; 8. Safety valve; 9. Level gauge; 10. Pressure gauge; 11. Storage silo; 12. Exhaust valve; 13. First feed valve; 14. Fifth valve; 15. Impurity removal unit; 16. First discharge valve; 17. Weighing unit; 18. Material collection silo; 19. Second pressure reducing valve; 20. Sixth valve; 21. First ejector; 22. Second ejector; 23. Third ejector; 24. Fourth ejector; 25. Fifth ejector; 26. Sixth ejector. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] like Figure 1 As shown, this utility model discloses a material conveying device, which includes: a storage component, which includes a storage bin 11 for storing a preset amount of material, the storage bin 11 having a discharge port connected to the storage bin 11, and at least two first input ports connected to the storage bin 11; a conveying component, which includes a first medium source and a conveying pipe assembly, the conveying pipe assembly including at least two conveying pipes, the first end of the conveying pipes being connected to the first medium source, and the second end of the conveying pipes being connected to the corresponding first input ports; the first medium source being used to supply medium to the storage bin 11 and to convey material through the medium, the medium and the material being set independently; and a check valve, which is provided on each conveying pipe to prevent the medium entering the storage bin 11 from flowing back to the first medium source from the conveying pipe.

[0035] The material conveying device of this utility model includes a storage component and a conveying component. The storage component includes a storage bin 11 storing a preset amount of material. The storage bin 11 has a discharge port and several first input ports connected to it. The conveying component includes a first medium source and a conveying pipe assembly. The conveying pipe assembly includes at least two conveying pipes. The first medium source is connected to the corresponding first input ports through the conveying pipes. The medium and the material are set up independently. The first medium source inputs the medium into the storage bin 11 through the conveying pipes, and the medium pushes the material out of the storage bin 11 for subsequent conveying or production operations. While the total amount of medium supplied to the storage bin 11 remains constant, this utility model uses multiple conveying pipes to separately convey the medium... The medium acts on different locations within the storage silo 11, dispersing its force across a larger area of ​​the material surface, reducing the impact of the medium on the material and minimizing material breakage. Furthermore, each conveying pipe is equipped with a check valve to prevent the medium entering the storage silo 11 from flowing back to the first medium source. This reduces the problem of inconsistent medium pressure in different conveying pipes causing some medium to flow back from the pipe with lower conveying pressure to the first medium source under pressure difference, thus hindering effective material conveying and ensuring material conveying efficiency. In short, this invention reduces material breakage while ensuring material conveying efficiency; that is, this invention reduces material breakage during the conveying process.

[0036] The material conveying device of this invention can be used to convey powdery or granular materials; it can also be used for conveying silica. The preset quantity of material refers to the amount of material that needs to be placed in the storage silo 11 according to the current working conditions. Storing the preset quantity of material means that the storage silo 11 does not always contain the preset quantity of material; it must contain the preset quantity of material before the material conveying device conveys the material. Specifically, the storage silo 11 can be a 1.0m model manufactured by Hubei Lingtan Electromechanical Equipment Co., Ltd. 3 The design pressure is 0.8 MPa, and the design temperature is 50℃. When the medium is air, the first medium source includes an air compressor and a storage tank connected to the air compressor. The storage tank stores air, which is pressurized by the air compressor and then supplied to the material in the storage silo 11 through a delivery pipe. The connection between the first medium source and the delivery pipe means that the delivery pipe is connected to the storage tank and can receive the air or other media pressurized by the air compressor. Depending on the type of medium, different media such as nitrogen can be stored in the storage tank.

[0037] Independent setting of medium and material means that the medium comes into contact with the material without reacting with it or changing its physical and chemical properties. However, this does not mean that contact between the medium and the material completely prevents material breakage. The material can still suffer some damage due to impact and collision from the medium, but the breakage rate is low. The medium can specifically be air.

[0038] The conveying tank assembly includes at least two conveying pipes, through which the medium is simultaneously applied to the material in the storage silo 11. This increases the fluidization rate of the material, making the material conveying smoother. Figure 1 As shown, the conveying pipe assembly includes a first conveying pipe, a second conveying pipe, and a third conveying pipe. The first end of the first conveying pipe is connected to a first medium source, and the second end of the first conveying pipe is connected to the first ends of both the second and third conveying pipes. The second end of the second conveying pipe is connected to the top of the storage silo 11, and the second end of the third conveying pipe is connected to the bottom of the storage silo 11. A first valve 1, a first pressure reducing valve 2, and a second valve 3 are sequentially installed on the first conveying pipe along the medium flow direction. A third valve 6 and a first check valve 7 are sequentially installed on the second conveying pipe along the medium flow direction. A fourth valve 4 and a second check valve 5 are sequentially installed on the third conveying pipe along the medium flow direction. Alternatively, the storage silo 11 is connected to a level gauge 9, a safety valve 8, and a pressure gauge 10. The first valve 1, the third valve 6, and the fourth valve 4 can be manual valves such as ball valves. When the medium is air, the first valve 1, the third valve 6, and the fourth valve 4 act as manual switches for compressed air, facilitating maintenance by operators. The second valve 3 can be a valve such as an angle seat valve that controls the medium delivery volume, used for automatic switching to control the medium delivery volume, such as the air intake volume. The first pressure reducing valve 2 is used to control the medium pressure by adjusting its own opening. The first check valve 7 and the second check valve 5 are the check valves mentioned above, used to prevent the medium from flowing back to the first medium source from the second and third conveying pipes, respectively. At this time, the discharge port can be located at the bottom of the storage silo 11, so that the material can fall to the discharge port by its own weight, thereby reducing the air pressure and reducing the damage caused by the air impact on the material. The level gauge 9 can be a radio frequency admittance switch, used for full signal reminder, sensing whether the material in the storage silo 11 is full. The level gauge 9 can be a radio frequency admittance switch; the radio frequency admittance switch can be a TCSP-500 manufactured by Beijing Tiancheng Senshou Instrument Technology Co., Ltd., with a working pressure of 3-4KG, working temperature of -40-130℃, and output of switching quantity. The safety valve 8 is used to prevent the pressure in the storage silo 11 from exceeding the safety value, and automatically opens to release air when the pressure in the storage silo 11 exceeds the safety threshold. When the pressure gauge 10 senses that the pressure inside the storage bin 11 is lower than the set pressure, it indicates that the material has been emptied, the current batch of material conveying is complete, and the material conveying ends.

[0039] Furthermore, the storage assembly includes a weighing unit 17 for measuring the weight of materials. The weighing unit 17 has a cavity, and a first inlet and a first outlet connected to the cavity. The first inlet is used to fill materials, and the first outlet is connected to the second inlet of the storage silo 11 through a first conveying pipe. The storage silo 11 is connected to the cavity or the outside through an exhaust pipe, and an exhaust valve 12 is provided on the exhaust pipe. Alternatively, a first outlet valve 16 and a first inlet valve 13 are sequentially provided on the first conveying pipe along the material conveying direction. Alternatively, the cavity and the storage silo 11 are arranged sequentially from top to bottom. Alternatively, the cavity is connected to a conveying component for conveying materials in the cavity to the storage silo 11. Alternatively, the weighing unit 17 includes several weight sensors connected to the cavity, and several vibrators.

[0040] Materials can be added to the first inlet via a conveyor belt or other feeding equipment. Before the material conveying device conveys the material, the first discharge valve 16, the first feed valve 13, and the exhaust valve 12 are opened. The weighed material in the weighing unit 17 enters the storage silo 11 through the first conveying pipe. As the material enters the storage silo 11, the air in the storage silo 11 is discharged, allowing the material to fill the storage silo 11 as needed under operating conditions. This also avoids the problem of air accumulation in the storage silo 11, which would create air resistance and affect the flow of materials. When the exhaust pipe is connected to the cavity, the air in the storage silo 11 enters the cavity, promoting the flow of materials in the cavity to the storage silo 11, improving the feeding rate and reducing feeding costs. When the first discharge port, the first conveying pipe, and the first inlet are arranged sequentially from top to bottom, the material in the cavity can flow to the first inlet under its own gravity, thereby reducing the cost of transporting the material from the cavity to the storage silo 11. Alternatively, the cavity and storage silo 11 may not adopt the above arrangement. In this case, a conveying device is required. For example, a spiral blade is arranged along the axial direction of the first conveying pipe, and a rotary motor is used to drive the spiral blade to rotate. The material is transported to the storage silo 11 through the spiral blade. In this case, the conveying component is located in the first conveying pipe and includes the spiral blade and the rotary motor. Alternatively, the above structure may not be provided. The cavity is connected to a first medium source, which supplies medium to the cavity. Under the action of the medium, the material is pressed into the storage silo 11. In this case, the conveying component is connected to the cavity and includes the first medium source. The first feed valve 13, the first discharge valve 16, and the exhaust valve 12 may specifically be valve structures such as pneumatic butterfly valves. The weight sensor can detect the weight inside the cavity so that the controller or operator can determine the weight of the material conveyed to the storage bin 11. The vibrator accelerates the material conveying and reduces the amount of material adhering to the cavity.

[0041] Weighing unit 17 may specifically be a batching scale for weighing and batching materials. A purification unit 15 is provided on the first conveying pipe. The purification unit 15 includes an iron remover installed on the first conveying pipe to remove iron from the material; the material conveying device includes a humidity sensor connected to the cavity; and the purification unit 15 includes a drying element connected to the cavity. Based on feedback from the humidity sensor, when the material moisture content is high, the drying element is activated to reduce the moisture content, thereby reducing material adhesion within the first conveying pipe. The drying element includes a heating wire for heating air and a fan for delivering the heated air to the first conveying pipe. It is important to note that when the drying element dries the material, the moisture content must not be too low to ensure that the material meets the requirements of subsequent processes. And / or, the purification unit 15 includes an electrostatic eliminator connected to the cavity or the first conveying pipe. The electrostatic eliminator may specifically be an existing electrostatic eliminator, which includes a high-voltage power generator and a discharge electrode (generally an ion needle). The installation of static electricity eliminators reduces the probability of fires and explosions, and improves the safety of material transportation.

[0042] like Figure 1 As shown, the conveying assembly includes a second conveying pipe. The outlet is connected to the material collection bin 18 via the second conveying pipe. Along the material conveying direction, the second conveying pipe is equipped with a sixth valve 20, a second pressure reducing valve 19, a fifth valve 14, and several second inlets connected to a second medium source. The second medium source supplies medium into the second conveying pipe. The first force exerted on the material by the first medium source is less than the force required to convey the material from the storage bin 11 to the material collection bin 18. When the material conveying device is in conveying mode, the second medium source intermittently supplies medium into the second conveying pipe. The fifth valve 14 is used for automatic switching control of the medium inlet, such as air inlet, and can be a valve such as an angle seat valve. The second pressure reducing valve 19 is used to control the pressure of the medium, such as compressed air. The sixth valve 20 can be a ball valve or other manual valve, serving as a manual switch for the medium, such as compressed air, facilitating maintenance by operators. The material collection bin 18 is used to receive the conveyed material. The material collection bin 18 can be a pulse bag dust collector structure. When the material falls into the pulse bag dust collector structure, the compressed air passes through the bag and is discharged from the discharge valve.

[0043] The initial force exerted on the material by the first medium source is less than the force required to transport the material from the storage silo 11 to the material collection silo 18. This reduces the force exerted on the material by the medium, such as air, reducing material breakage. It also reduces the problem of decreased adsorption value of silica in subsequent mixers due to breakage during transport, leading to product defects. Furthermore, the second conveying pipe has several second inlets connected to the second medium source along the material conveying direction. The second medium source supplies the medium into the second conveying pipe, supplementing it with a medium, such as compressed air, to maintain the material conveying pressure and ensure the material can be transported from the storage silo 11 to the material collection silo 18. Because the second medium source intermittently supplies the medium into the second conveying pipe, a "segment of material, segment of medium, such as air" configuration is formed within the pipe, using the static pressure difference between the two ends to propel and transport the material.

[0044] The number of second inlets depends on the operating requirements, such as the length of the second conveying pipe and the amount of material to be conveyed; generally, there is more than one second inlet. The conveying assembly includes a second conveying pipe, the inlet of which is connected to a second medium source. Several ejectors are provided on the second conveying pipe, and each ejector is connected to a corresponding second inlet. The structure of the second medium source is the same as that of the first medium source described above. The second medium source delivers a medium, such as compressed air, into the second conveying pipe, and then periodically opens the ejectors to intermittently replenish the medium, such as compressed air. Alternatively, if cost permits, each second inlet can be equipped with a separate second medium source, which is connected to the second inlet, and each second medium source directly supplies the medium into the second inlet. And / or, the material collection bin 18 is connected to an air vent valve, which allows the air in the material collection bin 18 to be expelled by the material during the process of the material entering the material collection bin 18, so that the material collection bin 18 can be filled when the operating conditions require it.

[0045] like Figure 1 As shown, along the axial direction of the second conveying pipe, there are sequentially arranged a first ejector 21, a second ejector 22, a third ejector 23, a fourth ejector 24, a fifth ejector 25, and a sixth ejector 26. The first ejector 21 to the sixth ejector 26 can be air ejectors of model bp-20, with adjustable pressure of 0-0.8Mpa and standard air flow rate of 2218 cubic centimeters / s, manufactured by Bipu Fluid Equipment (Shanghai) Co., Ltd.

[0046] The table below compares the data of storage silos 11 with bottom discharge, a second conveying pipe with several second inlets along the material conveying direction, and a second medium source intermittently supplying medium to the second inlets with existing pneumatic conveying equipment. As can be seen from the table, after adopting the material conveying device of this invention, the adsorption value and particle size of the material before and after conveying do not change significantly. Clearly, adopting the material conveying device of this invention significantly reduces the material breakage rate.

[0047]

[0048] Specifically, valves 1 (first), 6 (third), 4 (fourth), and 20 (sixth) can be manual ball valves. Pressure gauge 10 can be a pressure transmitter manufactured by Shanghai Daojing Intelligent Instrument Co., Ltd., model DJ2088T, with a measuring range of 0-1000 kPa, output signal of 4-20 mA, power supply of 24VDC, operating temperature of -20-80℃, and accuracy class of 0.25% FS. Pressure reducing valves 2 (first) and 19 (second) can be pressure reducing valves manufactured by Wuxi Huatong Pneumatic Manufacturing Co., Ltd., model QTY-50, with an operating pressure of 0.05-1 MPa. Valve 3 (second) and 14 (fifth) are angle seat valves, specifically angle seat valves manufactured by Qingdao Jingrui Machinery Manufacturing Co., Ltd., model DN50-63mm, with an operating temperature T of -10-180℃ and an operating pressure P of 3-8 bar. Pressure gauge 10 can be a pressure transmitter.

[0049] In addition, the second conveying pipe includes a variable diameter section, the inner diameter of which gradually increases along the material conveying direction. This gradually increases the material flow area, reduces the material flow rate, and decreases the degree of collision between the material and the second conveying pipe, thus reducing material breakage. However, it is important to note that the length of the variable diameter section and the setting of the second medium source need to be considered comprehensively, i.e., reducing material breakage without significantly reducing material conveying efficiency. The inner wall of the second conveying pipe is provided with a drag-reducing layer, which improves the smoothness of the inner wall of the second conveying pipe, reduces the friction between the second conveying pipe and the material, and reduces material breakage. Specifically, the drag-reducing layer can be a coating made of amine-cured epoxy resin or polyamide epoxy resin.

[0050] The second conveying pipe includes a corrosion-resistant layer, a reinforcing layer, and a wear-resistant layer arranged sequentially from the inside out. The corrosion-resistant layer improves the corrosion resistance of the second conveying pipe, enabling it to be used for conveying corrosive materials. The corrosion-resistant layer can be made of materials such as epoxy resin. The reinforcing layer improves the strength of the second conveying pipe, enabling it to be used for conveying large volumes of materials and to support long-term conveying. The reinforcing layer can be reinforcing ribs arranged circumferentially along the second conveying pipe, and the reinforcing ribs can be made of high-strength alloy. The wear-resistant layer improves the wear resistance of the second conveying pipe, giving it strong resistance to external environments when installed outdoors and making it less prone to leakage. The wear-resistant layer can be made of wear-resistant ceramic. And / or, a first guide vane is provided at one end of the second conveying pipe near the material collection bin 18. The first guide vane can be a spiral guide plate arranged axially along the second conveying pipe, allowing the material to be conveyed along the first guide vane, thereby reducing the material flow rate and the collision between the material and the second conveying pipe and the material collection bin 18, reducing material breakage.

[0051] The second conveying pipe is connected to a flow rate sensor; the flow rate sensor, the first medium source, and the second medium source are all connected to the controller signal; when the controller determines that the flow rate of the material exceeds the preset range based on the feedback from the flow rate sensor, it adjusts the operating status of the first medium source and the second medium source, and adjusts the discharge speed of the material from the storage bin 11 and the conveying speed in the second conveying pipe.

[0052] The second conveying pipe has an integrated structure. The conveying assembly includes several support frames connected to and supporting the second conveying pipe. By making the second conveying pipe an integrated structure (i.e., a single pipe), the number of joints is reduced, improving the sealing performance of the second conveying pipe. The multiple support frames also enhance the strength of the second conveying pipe, reducing the risk of damage due to excessive length. Second guide vanes are installed at the corners of the second conveying pipe, guiding the material to a different direction and reducing friction between the material and the second conveying pipe. To reduce collisions and material breakage, the conveying assembly includes a third conveying pipe, with its two ends connected to the discharge port and the material collection bin 18, respectively. A seventh valve is installed on the third conveying pipe, and the inner diameter of the third conveying pipe is smaller than that of the second conveying pipe. The third conveying pipe serves as a backup conveying pipe. When the second conveying pipe malfunctions, the seventh valve is opened, allowing the material to be temporarily conveyed through the third conveying pipe. The smaller inner diameter of the third conveying pipe compared to the second conveying pipe results in a higher flow velocity of the material within the third conveying pipe, making it less prone to blockage.

[0053] "And / or" refers to the fact that the text preceding "and / or" and the text following "and / or" can exist simultaneously or separately, such as A and / or B, including the cases where only A or B exists, and the cases where A and B exist simultaneously. "And / or" has the same meaning as "and / or", and will not be elaborated upon here.

[0054] This utility model discloses multiple technical solutions, but does not provide any contrary technical teachings.

[0055] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, "a plurality of" means two or more, unless otherwise expressly specified.

[0057] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0058] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0060] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

[0061] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A material conveying device, characterized in that, The material conveying device includes: A material storage assembly, comprising a storage bin for storing a preset amount of material, the storage bin having a discharge port connected to the storage bin, and at least two first input ports; A conveying assembly includes a first medium source and a conveying pipe group. The conveying pipe group includes at least two conveying pipes. The first end of each conveying pipe is connected to the first medium source, and the second end of each conveying pipe is connected to a corresponding first input port. The first medium source is used to supply medium to the storage bin and to convey materials by the medium. The medium and the materials are set up independently. Check valves are provided on all conveying pipes. The check valves are used to prevent the medium entering the storage silo from flowing back to the first medium source through the conveying pipe.

2. The material conveying device according to claim 1, characterized in that, The storage assembly includes a weighing unit for measuring the weight of materials. The weighing unit has a cavity, and a first inlet and a first outlet connected to the cavity. The first inlet is used to fill materials, and the first outlet is connected to the second inlet of the storage bin through a first conveying pipe. The storage bin is connected to the cavity or the outside through an exhaust pipe, and the exhaust pipe is equipped with an exhaust valve. And / or, the first conveying pipe is provided with a first discharge valve and a first inlet valve in sequence along the material conveying direction; And / or, the first discharge port and the first inlet port are arranged sequentially from top to bottom; or, the weighing unit or the first conveying pipe is connected to a conveying component for conveying the material in the cavity to the storage bin; And / or, the weighing unit includes several weight sensors connected to the cavity, and several vibrators.

3. The material conveying device according to claim 1, characterized in that, The discharge port is located at the bottom of the storage silo. The conveying pipe assembly includes a first conveying pipe, a second conveying pipe, and a third conveying pipe. The first end of the first conveying pipe is connected to the first medium source. The second end of the first conveying pipe is connected to the first ends of the second conveying pipe and the third conveying pipe, respectively. The second end of the second conveying pipe is connected to the top of the storage silo. The second end of the third conveying pipe is connected to the bottom of the storage silo. The first conveying pipe is provided with a first valve, a first pressure reducing valve, and a second valve in sequence along the direction of medium flow; the second conveying pipe is provided with a third valve and a first check valve in sequence along the direction of medium flow; the third conveying pipe is provided with a fourth valve and a second check valve in sequence along the direction of medium flow; or, the storage silo is connected to a level gauge, a safety valve, and a pressure gauge.

4. The material conveying device according to claim 1, characterized in that, The conveying assembly includes a second conveying pipe, and the outlet is connected to the material collection bin through the second conveying pipe. The second conveying pipe is provided with a sixth valve, a second pressure reducing valve, a fifth valve and several second inlets connected to a second medium source in sequence along the material conveying direction. The second medium source is used to supply medium into the second conveying pipe. Wherein, the first force applied to the material by the first medium source is less than the force required to transport the material from the storage bin to the material collection bin; When the material conveying device is in the conveying state, the second medium source intermittently supplies medium into the second conveying pipe.

5. The material conveying device according to claim 4, characterized in that, The conveying assembly includes a second conveying pipe, the input end of which is connected to the second medium source, and a plurality of ejectors are provided on the second conveying pipe along the material conveying direction, the ejectors being connected to the corresponding second input ports; And / or, the material collection bin is connected to an air vent valve.

6. The material conveying device according to claim 2, characterized in that, The material conveying device includes a humidity sensor that communicates with the cavity; And / or, the first conveying pipe is provided with a cleaning unit, the cleaning unit including an iron remover provided on the first conveying pipe, and / or a drying element communicating with the cavity, and / or an electrostatic eliminator communicating with the cavity or the first conveying pipe.

7. The material conveying device according to claim 4, characterized in that, The second conveying pipe includes a variable diameter section, the inner diameter of which gradually increases along the material conveying direction; the inner wall of the second conveying pipe is provided with a resistance-reducing layer to reduce frictional resistance.

8. The material conveying device according to claim 4, characterized in that, The second conveying pipe includes a corrosion-resistant layer, a reinforcing layer, and a wear-resistant layer arranged sequentially from the inside out; and / or, a first guide vane is provided at one end of the second conveying pipe near the material collection bin.

9. The material conveying device according to claim 4, characterized in that, The second conveying pipe is connected to a flow rate sensor; the flow rate sensor, the first medium source, and the second medium source are all connected to the controller signal; when the controller determines that the flow rate of the material exceeds the preset range based on the feedback from the flow rate sensor, it adjusts the operating status of the first medium source and the second medium source.

10. The material conveying device according to claim 4, characterized in that, The second conveying pipe is an integral structure. The conveying assembly includes several support frames connected to the second conveying pipe for supporting the second conveying pipe. A second guide vane is provided at the corner of the second conveying pipe, which is arranged along the direction of the corner. The conveying assembly includes a third conveying pipe, the two ends of which are respectively connected to the discharge port and the material collection bin. A seventh valve is provided on the third conveying pipe. The inner diameter of the third conveying pipe is smaller than the inner diameter of the second conveying pipe.

Images