Novel batching device

Abstract

The invention discloses a novel batching device which comprises a control unit, a permanent magnet servo motor, a servo driver, a weighing sensor and a feeding device, the control unit adopts a closed loop feedback mechanism, collects data collected by the weighing sensor and sends out a control signal, the servo driver receives the control signal, and the feeding device feeds the control signal to the permanent magnet servo motor. And the current is converted into proper current to control the action of the permanent magnet servo motor so as to adjust the speed of the feeding device and maintain the set feeding speed. According to the invention, a high-precision heavy-load servo driving mechanism is adopted, so that the batching precision is ensured, and multiple raw materials can be continuously and automatically fed at the same time; the motor is small in size, low in energy consumption, low in noise and high in efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of cement production, and in particular relates to a novel batching device. Background Art

[0002] At present, batching scales used in industrial production generally use variable frequency motors as power sources to achieve stepless speed regulation. Most of them use ordinary asynchronous motors, which are simple in structure, cheap, low in energy consumption, and high in torque, but it is difficult to achieve metering accuracy. There are also some that use DC speed regulating motors or hydraulic torque converters. Although the speed adjustment range is wide and can meet the different speed requirements of batching scales, they are expensive, difficult to maintain, and have a high failure rate. Summary of the invention

[0003] In view of the above-mentioned defects, the present invention provides a new type of batching device, which adopts a high-precision heavy-load servo drive mechanism and can be widely used for metering and weighing under various viscosity, pressure, temperature, density, concentration and other working conditions, and can completely replace traditional mechanical and electromagnetic batching devices.

[0004] A novel batching device includes a computer control system, a frequency conversion controller, a servo drive, a torque motor, an encoding feedback unit, a sensor, a solid conveying system and a liquid conveying system. The solid conveying system includes a horizontal conveyor and a vertical conveyor. The frequency conversion controller, the servo drive, the torque motor, the encoding feedback unit and the sensor are installed on a workbench located on the upper part of the main body. The solid conveying system is provided at the loading port below the workbench, and the liquid conveying system is provided in the middle above the workbench. The horizontal conveyor is connected to the vertical conveyor, and a solid storage bin is provided on the horizontal conveyor. The surface is installed with a computer-controlled anti-blocking detector and clearing mechanism, a discharge valve is provided on one side of the solid material storage bin, and a stepless speed-regulating horizontal feeder is also provided. The weight of the required ingredients is set by the computer, and then the torque motor is started to drive the screw to rotate. Under the control of the computer program, the horizontal feeder is driven to evenly add the materials in the storage bin to the container below. At the same time, a positive pressure gas tank is provided above the storage bin to further prevent dust pollution; a liquid pump, a flow meter, an electric heater and a temperature sensor are installed on the bracket of the vertical conveyor, and a flow meter with visible flow direction is installed on the pipeline of the vertical conveyor to monitor the entire flow.

[0005] The beneficial effect of the present invention is that in the cement production process, the permanent magnet servo drive system can be used to accurately control the feeding of various additives and trace components, such as grinding aids, mineralizers, etc. It not only helps to improve product quality, but also saves raw materials and reduces production costs. In addition, due to the use of the permanent magnet servo drive system, the motor is small in size, low in energy consumption, low in noise, and high in efficiency; in modern factories with a high degree of automation, such a system is easier to integrate with the central control system, and can realize continuous and automatic feeding of multiple raw materials at the same time, and realize optimal resource allocation and management throughout the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below.

[0007] Figure 1 It is a schematic diagram of a novel batching device according to an embodiment of the present invention.

[0008] Figure numerals: 1-loading port, 2-unloading port, 3-permanent magnet servo motor. DETAILED DESCRIPTION

[0009] The embodiments of the present invention provide a method for making the purpose, technical solution and advantages of the present invention more clear, and the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0010] The present application discloses a novel batching device, which is usually arranged below a storage bin, at the position where the material flows out of the storage bin. Specifically, it is generally installed at the discharge port at the bottom of the storage bin so as to accurately measure the weight of the material discharged from the storage bin. This arrangement allows the material to flow naturally to the batching scale under the action of gravity for weighing, and then can be directly transported to the next process or packaging system.

[0011] like Figure 1As shown, a novel batching device provided by an embodiment of the present invention is intended to achieve high-precision and high-efficiency material feeding and proportioning control, including a control unit, a permanent magnet servo motor 3, a servo driver, an encoder feedback unit, a weighing sensor and a feeding device. The control unit adopts a closed-loop feedback mechanism to collect data collected by the weighing sensor and send a control signal. The servo driver receives the control signal and converts it into an appropriate current to control the permanent magnet servo motor 3 to adjust the speed of the feeding device (such as a screw conveyor, a vibrating plate, etc.) to maintain the set feeding rate. The encoder feedback unit is installed on the motor shaft. Depending on the type of encoder, it can provide absolute position information or relative position change information (incremental encoder). In a permanent magnet servo drive system, the encoder feedback unit is usually installed on the motor shaft or close to the motor to directly measure the rotation of the motor, monitor the actual position and speed of the motor, convert the mechanical position into an electrical signal, and feed back the information to the servo driver for closed-loop control.

[0012] In this embodiment, a permanent magnet servo motor and a driver are selected according to the requirements: a suitable permanent magnet servo motor with a small size, low energy consumption and large torque output is selected. Taking into account the dust problem that may exist in the cement production process, motors with higher protection levels should be given priority. Select a servo driver with high efficiency and fast response characteristics, support multiple communication protocols, and facilitate integration into existing or future automation control systems. Design a closed-loop control system: Use a high-resolution encoder as a feedback unit to monitor the position and speed of the motor in real time to ensure high-precision control of the system. Install a high-precision weighing sensor on the batching scale to detect the weight of the material and transmit it to the controller through analog or digital signals. Implement a closed-loop control logic based on the PID (proportional-integral-differential) control algorithm to optimize the dynamic adjustment of the feeding rate and maintain a stable feeding process.

[0013] Ensure proper connections between all components, including motors, drives, encoders, load cells, and any necessary interface modules. Write control programs to manage the operation of the entire system, including start / stop sequences, fault diagnostics, data logging, etc.; perform adequate testing and debugging to verify system performance.

[0014] Furthermore, the novel batching device has a feed port 1 and a discharge port 2. The feed port is the entrance for materials to enter the batching system, and is responsible for introducing raw materials from external sources (such as trucks, trains, warehouses, etc.) into the storage bin. The discharge port is the exit for materials to leave the batching device, and is usually located directly below the batching scale, immediately after the weighing area. It is responsible for conveying the materials that have been mixed or weighed according to the set ratio to the subsequent process, such as a mixer, reactor or packaging machine. The novel batching device has a solid conveying system upstream of the feed port. The solid conveying system includes a horizontal conveyor and a vertical conveyor, and the horizontal conveyor is connected to the vertical conveyor. The horizontal conveyor is equipped with a solid storage bin, and a positive pressure gas tank is installed on the storage bin to further prevent dust pollution. An anti-blocking detector and a clearing mechanism are installed under the bottom of the solid storage bin. A discharge valve and a stepless speed-adjustable horizontal feeder are installed on one side of the solid storage bin. The screw of the feeder rotates under the control of the control unit, driving the horizontal feeder to evenly add the materials in the storage bin to the container below. The bracket of the vertical conveyor is equipped with a liquid pump, flow meter, electric heater and temperature sensor, and a flow meter with visible flow direction is installed on the pipeline of the vertical conveyor to monitor the entire flow.

[0015] Workflow Loading: Materials are fed into the storage silo from external sources through loading equipment (such as conveyors, elevators, etc.).

[0016] Storage: Materials are temporarily stored in storage silos awaiting further processing.

[0017] Weighing and Proportioning: When needed, materials are weighed and proportioned using a batching scale to ensure that each batch of materials meets the specified proportion and weight.

[0018] Feeding: The batching scale controls the outflow speed and total amount of materials according to the set parameters.

[0019] Discharging: The weighed and proportioned materials enter the next process stage, such as mixing, reaction or packaging, through the discharge port.

[0020] The invention adopts a high-precision heavy-load servo drive mechanism to ensure the accuracy of batching; it can realize continuous and automatic feeding of multiple raw materials at the same time; due to the use of a permanent magnet servo drive system, the motor has a small size, low energy consumption, low noise and high efficiency.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new batching device, characterized in that: It includes a control unit, a permanent magnet servo motor, a servo driver, a weighing sensor and a feeding device. The control unit adopts a closed-loop feedback mechanism to collect data collected by the weighing sensor and send out a control signal. The servo driver receives the control signal and converts it into an appropriate current to control the permanent magnet servo motor to adjust the speed of the feeding device to maintain the set feeding rate.

2. The novel batching device according to claim 1 is characterized in that: The novel batching device also includes an encoding feedback unit, which is installed on the motor shaft, monitors the actual position and speed of the motor, and feeds back the information to the servo driver for closed-loop control.

3. The novel batching device according to claim 2 is characterized in that: The encoder feedback unit provides absolute position information or relative position change information according to the type of encoder, converts the mechanical position into an electrical signal, and transmits it to the control unit.

4. The novel batching device according to claim 1 is characterized in that: The feeding device is a screw conveyor or a vibrating plate.

5. The novel batching device according to any one of claims 1 to 4, characterized in that: A solid material conveying system is provided at the feeding port of the novel batching device, and the solid material conveying system includes a horizontal conveyor and a vertical conveyor, and the horizontal conveyor is connected to the vertical conveyor; a solid material storage bin is provided on the horizontal conveyor, and a discharge valve and a stepless speed-adjustable horizontal feeder are provided on one side of the solid material storage bin. The screw of the feeder rotates under the control of the control unit, driving the horizontal feeder to evenly add the material in the storage bin to the container below.

6. The novel batching device according to claim 5 is characterized in that: A positive pressure gas tank is arranged above the solid material storage bin to prevent dust pollution.

7. The novel batching device according to claim 5 is characterized in that: An anti-blocking detector and a blockage clearing mechanism are arranged at the bottom of the solid material storage bin.

8. The novel batching device according to claim 5 is characterized in that: A liquid pump, a flow meter, an electric heater and a temperature sensor are arranged on the bracket of the vertical conveyor, and a flow meter with visible flow direction is arranged on the pipeline of the vertical conveyor to monitor the entire flow.

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