Automatic metering and feeding device for multi-tank powder

Abstract

The utility model relates to the field of feeding devices, and discloses an automatic metering and feeding device for multi-tank powder, which comprises a discharging barrel, a discharging rotating shaft, a discharging screw and a discharging motor, the discharging end of the discharging barrel is connected with a slurry preparation device, the feeding end of the discharging barrel is provided with a pipeline, a weighing switch is arranged in the pipeline, and the discharging rotating shaft is connected with the discharging screw. A plurality of feeding and conveying mechanisms are arranged above the pipeline; the feeding and conveying mechanism comprises a conveying barrel, a conveying rotating shaft, a conveying screw, a conveying motor and a storage barrel, a star-shaped discharger is arranged on the upper side of the conveying barrel, a discharging port of the storage barrel is connected with the conveying barrel through the star-shaped discharger, and a branch pipe connected with the upper portion of the pipeline is arranged at the discharging end of the conveying barrel. The multi-tank powder conveying device is high in automation degree and small in feeding error, meanwhile, packaging-material-free conveying and storage of powder are achieved, and the problems that packaging materials are difficult to process and the environment is polluted are effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of feeding devices, in particular to an automatic metering and feeding device for multi-tank powder materials. Background Art

[0002] At present, the chemical production and construction industries involve processes such as powder addition and multi-material mixing. Powders are mostly transported in bags to the manufacturing plant or unloading site for bag breaking and feeding. At present, the powder is generally fed into the mixer by manual bag breaking and mechanical assistance. This feeding method has high labor intensity, serious dust on site, and poses a great risk to the occupational health of employees. In addition, the packaging bags after the powder is fed are difficult to handle, which poses a potential risk to the ecological environment.

[0003] Bag powder is usually packaged in 25kg / bag, 500kg / bag, 1000kg / bag (commonly known as ton bags), but the actual weight of the powder is not accurate. The actual weight of the powder is inconsistent with the weight written on the surface of the packaging bag. The error of the feeding weight is large, which directly leads to an imbalance in the proportion of ingredients in subsequent production and manufacturing, resulting in substandard product quality and affecting various product performance indicators.

[0004] Therefore, the utility model provides an automatic metering and dosing device for multi-tank powder. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide an automatic metering and dosing device for multi-tank powder, which is intended to solve the problems of low automation, large dust, difficult packaging bag handling and large feeding error in existing feeding devices.

[0006] The utility model solves the above technical problems through the following technical means:

[0007] An automatic metering and dosing device for multi-tank powders, comprising a discharge barrel, a discharge shaft rotatably connected in the discharge barrel, a discharge screw arranged on the discharge shaft, a discharge motor arranged on one side of the discharge barrel, one end of the discharge shaft passing through the discharge barrel and fixedly connected to the output end of the discharge motor, a slurry mixer connected to the discharge end of the discharge barrel, a pipe arranged at the feed end of the discharge barrel, a weighing switch arranged in the pipe, and a plurality of feeding and conveying mechanisms arranged above the pipe;

[0008] The feeding and conveying mechanism comprises a feeding cylinder, a feeding motor and a storage barrel, a feeding shaft is rotatably connected in the feeding cylinder, a feeding screw is arranged on the feeding shaft, one end of the feeding shaft passes through the feeding cylinder and is fixedly connected with the output end of the feeding motor, a star-shaped discharger is arranged on the upper side of the feeding cylinder, a discharge port of the storage barrel is connected with the feeding cylinder through the star-shaped discharger, a feeding pipe is arranged on the upper part of the storage barrel, a control valve is arranged on the feeding pipe, and a branch pipe connected with the upper part of the pipeline is arranged at the discharge end of the feeding cylinder;

[0009] A controller is also provided, and the feeding motor, the discharging motor, the control valve and the weighing switch are all electrically connected to the controller.

[0010] Furthermore, a washing tank is provided below the storage barrel, an air pipe connected to the washing tank is provided on the storage barrel, and a pressure relief valve is provided on the air pipe.

[0011] With this structural design, after the transport tank truck pumps the powder into the storage barrel, the pressure can be released through the air pipe so that the dust in the storage tank can be discharged to the feed barrel. At the same time, the washing tank can wash the depressurized gas.

[0012] Furthermore, an explosion-proof membrane is provided on the top of the storage barrel.

[0013] This structural design can prevent the storage barrel from bursting due to excessive pressure when the transport tank truck pumps powder into the storage barrel.

[0014] Furthermore, the lower portion of the storage barrel is conical, and the inclination angle of the conical portion of the storage barrel is 60°.

[0015] This structural design makes it easy for the powder in the storage tank to be discharged into the feeding barrel.

[0016] Furthermore, a vibrator is provided at the bottom of the storage barrel.

[0017] Such a structural design can vibrate the storage barrel and the powder in the storage barrel through the vibrator so that the powder can be discharged into the feeding tube. Beneficial Effects

[0018] 1. The utility model realizes the packaging-free transportation and storage of powder materials, effectively reducing the difficulty in handling packaging materials and the pollution to the environment.

[0019] 2. The utility model enables suppliers to have more choices in material procurement, greatly reduces material procurement costs, and increases corporate profits.

[0020] 3. The utility model can realize material feeding by using one set of feeding devices in multiple tanks, which completely solves the problems of high labor intensity and poor operating environment of manual feeding.

[0021] 4. The utility model realizes automatic feeding with one-key operation through PLC control, and the accuracy is controlled within 1% error, which greatly improves the stability of the production process.

[0022] 5. The utility model provides a reference for automatic feeding for the same or similar industries. A set of feeding devices can be used to achieve the feeding and preparation of multiple types of materials, thereby reducing the process and technical transformation costs of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of an automatic metering and dosing device for multi-tank powders of the utility model;

[0024] The reference numerals in the figure are as follows: feed barrel 1, feed motor 2, discharge motor 3, storage barrel 4, feed screw 5, star-shaped discharger 6, discharge barrel 7, pipeline 8, weighing switch 9, discharge screw 10, slurry mixer 11, vibrator 12. DETAILED DESCRIPTION

[0025] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are only for exemplary descriptions, and they are only schematic diagrams, not physical diagrams, and cannot be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the figures may be omitted.

[0026] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the figures, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] like Figure 1As shown, the utility model is an automatic metering and dosing device for multi-tank powder, including a discharge barrel 7, a discharge shaft is rotatably connected in the discharge barrel 7, a discharge screw 10 is arranged on the discharge shaft, a discharge motor 3 is arranged on the right side of the discharge barrel 7, the right end of the discharge shaft passes through the discharge barrel 7 and is fixedly connected to the output end of the discharge motor 3, a slurry mixer 11 is connected to the discharge end of the discharge barrel 7, a pipe 8 is fixedly connected to the feed end of the discharge barrel 7, a weighing switch 9 is installed in the pipe 8, and two feeding and conveying mechanisms are arranged above the pipe 8;

[0028] The weighing switch 9 comprises a solenoid valve installed in the pipeline 8, a weighing plate is installed on the upper side of the solenoid valve, and a weight sensor is installed between the weighing plate and the solenoid valve;

[0029] The feeding and conveying mechanism includes a feeding barrel 1, a feeding motor 2 and a storage barrel 4. A feeding shaft is rotatably connected in the feeding barrel 1, and a feeding screw 5 is arranged on the feeding shaft. The end of the feeding shaft away from the pipeline 8 passes through the feeding barrel 1 and is fixedly connected to the output end of the feeding motor 2. A star-shaped discharger 6 is arranged on the upper side of the feeding barrel 1, and the discharge port of the storage barrel 4 is connected to the feeding barrel 1 through the star-shaped discharger 6. A feeding pipe is fixedly connected to the upper part of the storage barrel 4, and a control valve is installed on the feeding pipe. The discharge end of the feeding barrel 1 is provided with a branch pipe fixedly connected to the upper part of the pipeline 8;

[0030] The automatic metering and dosing device of the utility model is also equipped with a controller, and the feeding motor 2, the discharging motor 3, the control valve, the electromagnetic valve and the weight sensor are all electrically connected to the controller.

[0031] As a preferred embodiment of the present embodiment, a washing tank is provided below the storage barrel 4, an air pipe connected to the washing tank is provided on the storage barrel 4, and a pressure relief valve is installed on the air pipe.

[0032] As a preferred embodiment of this embodiment, an explosion-proof membrane is provided on the top of the storage barrel 4.

[0033] As a preferred embodiment of this embodiment, the lower portion of the storage barrel 4 is conical, and the inclination angle of the conical portion of the storage barrel 4 is 60.

[0034] As a preferred embodiment of this embodiment, a vibrator 12 is installed at the bottom of the storage barrel 4.

[0035] The use process of the utility model automatic metering and dosing device is as follows:

[0036] First, connect the feed pipe of the storage barrel 4 to the tank body of the transport tank truck, and then pump the loaded powder into the storage barrel 4 through the transport tank truck. After all the powder is pumped into the storage barrel 4, close the control valve on the feed pipe, open the pressure relief valve, and the pressure relief gas enters the washing tank through the air pipe. The water in the washing tank washes the pressure relief gas to prevent the dust carried by the pressure relief gas from entering the work site, further ensuring the safety of employees. The storage barrel 4 of the left feeding and conveying mechanism is filled with powder A, and the storage barrel 4 of the right feeding and conveying mechanism is filled with powder B. The loading method is the same as above.

[0037] When 1000kg of powder A is needed, the controller selects the storage barrel 4 and feeding and conveying mechanism corresponding to the powder A, sets the powder dosage, and starts feeding with one key after setting. First, the star-shaped discharger 6 corresponding to the powder A storage barrel 4 is opened, and the powder A falls into the feeding barrel 1 under the action of gravity. The feeding motor 2 drives the feeding screw 5 to rotate, and then the powder A in the feeding barrel 1 is bolted to the pipeline 8. The weighing switch 9 in the pipeline 8 weighs the weight of the powder A in the pipeline 8 in real time. When the weight of the powder A in the pipeline 8 reaches 1000kg, the feeding motor 2 and the feeding screw 5 stop rotating. At this time, the weighing switch 9 is opened, and the 1000kg of powder A in the pipeline 8 automatically falls into the feeding barrel, and the discharging motor 3 drives the discharging screw 10 to rotate, and then the 1000kg of powder A in the discharging barrel 7 is bolted to the slurry mixer 11. The whole process is automatic and continuous, without manual intervention, and the system is a closed system without dust hazards.

[0038] When 1000 kg of powder B is needed, the storage barrel 4 and feeding and conveying mechanism corresponding to the powder B are selected through the controller, the feeding amount of the powder B is set, and then the feeding is started with one button. The operation mode of the automatic metering and feeding device is the same as above.

[0039] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. An automatic metering and dosing device for multi-tank powder, characterized in that: It comprises a discharge barrel (7), a discharge shaft rotatably connected inside the discharge barrel (7), a discharge screw (10) being arranged on the discharge shaft, a discharge motor (3) being arranged on one side of the discharge barrel (7), one end of the discharge shaft passing through the discharge barrel (7) and being fixedly connected to the output end of the discharge motor (3), a slurry mixer (11) being connected to the discharge end of the discharge barrel (7), a pipe (8) being arranged at the feed end of the discharge barrel (7), a weighing switch (9) being arranged inside the pipe (8), and a plurality of feeding and conveying mechanisms being arranged above the pipe (8); The feeding and conveying mechanism comprises a feeding barrel (1), a feeding motor (2) and a storage barrel (4); a feeding shaft is rotatably connected inside the feeding barrel (1); a feeding screw (5) is arranged on the feeding shaft; one end of the feeding shaft passes through the feeding barrel (1) and is fixedly connected to the output end of the feeding motor (2); a star-shaped discharger (6) is arranged on the upper side of the feeding barrel (1); the discharge port of the storage barrel (4) is connected to the feeding barrel (1) through the star-shaped discharger (6); a feeding pipe is arranged on the upper part of the storage barrel (4); a control valve is arranged on the feeding pipe; and a branch pipe connected to the upper part of the pipeline (8) is arranged at the discharge end of the feeding barrel (1); A controller is also provided, and the feeding motor (2), the discharging motor (3), the control valve and the weighing switch (9) are all electrically connected to the controller.

2. The automatic metering and dosing device for multi-tank powder according to claim 1 is characterized in that: A washing tank is provided below the storage barrel (4), an air pipe connected to the washing tank is provided on the storage barrel (4), and a pressure relief valve is provided on the air pipe.

3. The automatic metering and dosing device for multi-tank powder according to claim 1, characterized in that: The top of the storage barrel (4) is provided with an explosion-proof membrane.

4. The automatic metering and dosing device for multi-tank powder according to claim 1 is characterized in that: The lower part of the storage barrel (4) is arranged in a conical shape, and the inclination angle of the conical part of the storage barrel (4) is 60°.

5. The automatic metering and dosing device for multi-tank powder according to claim 1, characterized in that: A vibrator (12) is provided at the bottom of the storage barrel (4).

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