Electric control system for vacuum aluminum discharge equipment

Abstract

The utility model discloses an electric control system for vacuum aluminum discharging equipment, and belongs to the technical field of electric control systems. The utility model discloses an electric control system for vacuum aluminum discharge equipment. The electric control system comprises a PLC (Programmable Logic Controller), the vacuum degree control module comprises a dust remover communicated with the aluminum discharging equipment, a vacuum pump arranged at one end of an air outlet of the dust remover and a frequency converter electrically connected with the vacuum pump, and the frequency converter is electrically connected with the PLC; the weight control module comprises a weighing sensor arranged on the aluminum discharging equipment, and the weighing sensor is electrically connected with the PLC; according to the utility model, the PLC is accurately matched with the frequency converter, so that the vacuum degree can be effectively maintained within a set range, and the aluminum discharge quality and efficiency are improved; and two modes of weighing sensor automatic control and manual input weight control are integrated, so that the requirements of different production scenes and operation habits are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric control system, especially relates to a kind of electric control system for vacuum aluminum extraction equipment. BACKGROUND

[0002] In the production process of aluminum, vacuum aluminum extraction equipment plays a vital role.The conventional vacuum aluminum extraction equipment electric control system has many deficiencies.For example, in the control precision, it is difficult to accurately control the pumping speed and vacuum degree of vacuum pump, which may lead to unstable aluminum liquid extraction process, and prone to problems such as aluminum liquid splashing and incomplete extraction.In terms of safety performance, there is a lack of comprehensive fault detection and early warning mechanism.Once electrical system has short circuit, overload and other faults, not only will damage the equipment, but also may cause safety accidents, such as scalding, fire caused by aluminum liquid leakage, etc.Furthermore, the existing electric control system is mostly low in intelligent degree, cannot automatically adjust operating parameters according to actual working conditions, needs frequent manual intervention, increases the labor intensity of operating personnel, and also reduces production efficiency. SUMMARY

[0003] The utility model aims at solving the problems in the prior art and provides an electric control system for vacuum aluminum extraction equipment.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] An electric control system for vacuum aluminum extraction equipment, comprising:

[0006] PLC controller;

[0007] Vacuum degree control module: including dust remover communicated with aluminum extraction equipment, vacuum pump arranged at one end of dust remover gas outlet and frequency converter electrically connected with vacuum pump, and frequency converter is electrically connected with PLC controller;

[0008] Weight control module: including weighing sensor arranged on aluminum extraction equipment, and weighing sensor is electrically connected with PLC controller;

[0009] Cooling liquid temperature control module: including cooling liquid circulation system for cooling aluminum extraction equipment, temperature sensor for detecting cooling liquid temperature and water level sensor for detecting cooling liquid water level;

[0010] Alarm module: including alarm electrically connected with PLC controller.

[0011] In some embodiments, the dust bin of dust remover is provided with material level meter for detecting dust storage capacity, and the material level meter is electrically connected with PLC controller.

[0012] In some embodiments, a vacuum degree sensor for detecting the vacuum degree is arranged inside the aluminum discharging device, and the vacuum degree sensor is electrically connected with the PLC controller.

[0013] In some embodiments, the cooling liquid circulating system, the temperature sensor and the water level sensor are all electrically connected with the PLC controller, and the temperature sensor is installed in the cooling liquid circulating system.

[0014] In some embodiments, a wireless transmission module connected with the PLC controller in data is further included.

[0015] In some embodiments, a display panel connected with the PLC controller in communication is further included, and the manual operation buttons on the display panel include a button for manually stopping the device.

[0016] In some embodiments, the cooling liquid circulating system is a refrigeration fan, a circulating water pump and a cooling fin.

[0017] In some embodiments, the cooling liquid circulating system is a compressor, a refrigeration pipe and a cooling fin.

[0018] Compared with the prior art, the electric control system for the vacuum aluminum discharging device has the following beneficial effects.

[0019] 1、The accurate cooperation of the PLC and the frequency converter can effectively maintain the vacuum degree within the set range, thereby improving the quality and efficiency of aluminum discharging.

[0020] 2、The efficient temperature management realizes the automatic control of the cooling liquid temperature, which can ensure normal operation of the device and save energy.

[0021] Other advantages, objects and features of the present application will be set forth in part in the following description, and in part will become apparent to those skilled in the art upon examination of the following or can be learned from practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Fig. 1 is a schematic diagram of the electric control system of the present application.

[0023] Figure 2 Fig. 2 is a schematic diagram of the cooling liquid circulating system in the present application.

[0024] Figure 3 Fig. 3 is a schematic diagram of the cooling liquid circulating system in the present application. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1:

[0027] Reference Figures 1-2 An electrical control system for a vacuum aluminum tapping device, comprising:

[0028] Vacuum control module: Includes a dust collector connected to the aluminum tapping equipment, a vacuum pump located at the outlet of the dust collector, and a frequency converter electrically connected to the vacuum pump. The dust collector's dust hopper is equipped with a level gauge to detect the amount of dust stored. The aluminum tapping equipment is equipped with a vacuum sensor to detect the vacuum level. Both the level gauge and the vacuum sensor are electrically connected to a PLC controller. The frequency converter is also electrically connected to the PLC controller. After the equipment starts, the vacuum pump evacuates the aluminum tapping equipment, creating negative pressure to extract molten aluminum. Simultaneously, the hot air drawn in by the vacuum pump carries dust, which is stored in the dust hopper by the dust collector. When the dust level in the dust hopper reaches a certain height, the level gauge sends an electrical signal to trigger an alarm. An alarm sounds, and upon manual detection, the dust hopper is opened and the dust is removed. Meanwhile, a vacuum sensor continuously monitors the vacuum level inside the aluminum extraction equipment and transmits this data to the PLC controller. The PLC controller has a preset range for vacuum levels. Upon receiving the vacuum level signal, the PLC controller compares this value with the preset range. If the vacuum level is higher than the upper limit, the PLC controller sends a command to the frequency converter to reduce the frequency of the vacuum pump, thereby reducing the pump speed and lowering the vacuum level. If the vacuum level is lower than the lower limit, the PLC controller commands the frequency converter to increase the vacuum pump frequency and increase the pump speed, thus maintaining the vacuum level within a certain range. The vacuum level data is displayed in real-time on the display panel, allowing operators to check the equipment's vacuum status at any time.

[0029] The weight control module includes a weighing sensor arranged on the aluminum tapping device, the weighing sensor is electrically connected with the PLC controller, can receive the electronic signal from the weighing sensor, is used for detecting the weight of the tapped aluminum liquid at any time, or accurately measuring the weight of the tapped aluminum liquid during the aluminum tapping process and converting the weight into an electric signal; the purpose of accurately tapping or discharging the aluminum liquid is achieved, and the operator is also allowed to input the weight setting value in advance on the device display screen; when the weight value obtained from the weighing sensor reaches the preset value or is consistent with the weight setting value input on the device display screen, the PLC controller automatically issues a command to stop the operation of the aluminum tapping device; in addition, in order to meet special situations or the operation habit of the operator, a manual operation stop device function is also provided; when the operator operates through the manual operation button on the display panel, the PLC controller will ignore the weighing signal and directly execute the stop command.

[0030] The cooling liquid temperature control module includes a cooling liquid circulating system for cooling the aluminum tapping device, a temperature sensor for detecting the temperature of the cooling liquid, and a water level sensor for detecting the water level of the cooling liquid, the cooling liquid circulating system, the temperature sensor and the water level sensor are electrically connected with the PLC controller, the temperature sensor is installed in the cooling liquid circulating system, monitors the temperature of the cooling liquid in real time, and transmits the temperature signal to the PLC controller; the cooling liquid circulating system includes a refrigeration fan, a circulating water pump and a heat sink, the water inlet of the circulating water pump is communicated with the cooling liquid storage tank, the heat sink is communicated with the water outlet of the circulating water pump, the water outlet of the heat sink is communicated with the cooling liquid storage tank, and the refrigeration fan is arranged on the heat sink; when the PLC controller receives the temperature signal from the temperature sensor reaching the preset upper limit value, the refrigeration fan and the circulating water pump will be started immediately; the refrigeration fan removes the heat on the heat sink through forced convection, and the circulating water pump promotes the rapid circulation of the cooling liquid in the pipeline of the heat sink, so that the cooling liquid can be effectively cooled when passing through the heat sink; as the temperature of the cooling liquid decreases, when the temperature decreases to the preset lower limit value, the PLC controller stops the operation of the refrigeration fan and the circulating water pump to avoid excessive cooling; the temperature data of the cooling liquid is displayed on the display panel in real time, so that the operator can intuitively understand the temperature condition; the water level sensor is installed in the cooling liquid storage tank and is used for detecting the water level; when the water level is lower than the safe lower limit value, the PLC controller triggers a water level alarm signal; similarly, the alarm signal displays the alarm information on the display panel and can be connected with an external alarm.

[0031] The alarm module includes an alarm electrically connected with the PLC controller; when the temperature sensor detects that the temperature of the cooling liquid exceeds the preset dangerous upper limit value, the PLC controller triggers a water temperature alarm signal; the alarm signal displays the alarm information on the display panel to remind the operator, and can be connected with an external audible and light alarm to more directly warn the operator to take measures.

[0032] Wireless transmission and data recording module: the operator can manually operate the weight data through the wireless transmission module; the system can be used with the APP system; when the weight data is transmitted through the wireless transmission module, the APP system can receive and record the time, weight and aluminum time of each aluminum; at the same time, the data storage unit also stores various data during the operation of the equipment, such as vacuum degree, temperature, weight, etc., for subsequent query and analysis.

[0033] Specifically, the display panel is in communication connection with the PLC controller, and the display panel is an important interface for the operator to interact with the electric control system. It can directly display various operating state parameters of the equipment, including vacuum degree data, weight information, cooling liquid temperature, etc. At the same time, the display panel also provides manual operation buttons, such as buttons for manually stopping the equipment, etc., to facilitate the operator to intervene when necessary.

[0034] Specifically, the data storage module uses a large-capacity storage medium and is electrically connected with the PLC controller, which can continuously store various data during the operation of the equipment. These data include but are not limited to the vacuum degree change curve, weight data, cooling liquid temperature change, alarm record, etc. during each aluminum discharge process. Through the storage of these data, it can provide strong data support for the analysis of the production process, the maintenance of the equipment and the optimization of the production process.

[0035] Specifically, the control port of the frequency converter is connected to the output port of the PLC controller to realize the control of the vacuum pump frequency conversion by the PLC controller. The control lines of the circulating water pump and the fan are connected to the output port of the PLC controller, so that the PLC controller can control its start and stop according to the temperature control logic. The wireless transmission and data recording module are connected with the PLC controller to ensure that the weight data can be smoothly transmitted. The display panel and the data storage unit are connected with the PLC controller to realize the data display and storage functions.

[0036] Example 2:

[0037] Referring to Figure 3 An electric control system for a vacuum aluminum discharge equipment, which is different from the above embodiments:

[0038] The cooling liquid temperature control module: the cooling liquid circulating system comprises a compressor, a refrigeration pipe and a cooling fin, both ends of the refrigeration pipe are communicated with the compressor, the refrigeration pipe is arranged in the cooling liquid storage tank, and the cooling fin is arranged at the position of the return flow port of the refrigeration pipe close to the compressor; when the temperature sensor detects that the temperature of the cooling liquid rises to the set upper limit, the PLC controller starts the compressor; the compressor takes away the heat from the cooling liquid through the refrigerant circulating in the refrigeration pipe, and the cooling fin assists heat dissipation; when the temperature drops to the lower limit value, the PLC controller stops the operation of the compressor; and the temperature data of the cooling liquid is displayed on the display panel in real time, so that the temperature condition can be intuitively understood by the operator.

[0039] In the utility model, after the equipment starts, each sensor starts collecting data and transmits to the PLC controller, the vacuum pump is used for vacuumizing the vacuum aluminum discharging equipment, negative pressure is generated in the vacuum aluminum discharging equipment to extract the aluminum liquid, the vacuum degree sensor collects the vacuum degree signal of the vacuum aluminum discharging equipment in real time and transmits to the PLC controller to control the speed of extracting the aluminum liquid, and the weighing sensor detects the weight of the aluminum liquid extracted by the vacuum pump at any time, when the weight value obtained from the weighing sensor reaches the preset value or is consistent with the weight setting value input by the equipment display screen, the PLC controller automatically sends an instruction to stop the operation of the vacuum aluminum discharging equipment, thereby accurately controlling the extraction amount, the cooling liquid circulating system is used for cooling the vacuum aluminum discharging equipment, the temperature sensor monitors the temperature of the cooling liquid in the cooling liquid circulating system in real time and transmits the temperature signal to the PLC controller, the upper limit value and the lower limit value of the cooling liquid temperature are preset in the PLC controller, when the temperature feedback by the temperature sensor reaches the upper limit value, the PLC controller makes the cooling liquid circulating system work to accelerate the circulation and heat dissipation of the cooling liquid, thereby reducing the temperature, when the temperature drops to the lower limit value, the PLC controller sends a stop instruction to the cooling liquid circulating system to stop the operation, and when the vacuum aluminum discharging equipment discharges the aluminum liquid, the weighing sensor detects the weight of the aluminum liquid discharged by the vacuum aluminum discharging equipment to accurately control the aluminum discharging amount.

[0040] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

[0041] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0042] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. An electrical control system for a vacuum aluminum tapping device, characterized in that, Comprise: PLC controller; Vacuum degree control module: including dust remover arranged in communication with aluminum outlet device, vacuum pump arranged at one end of dust remover gas outlet, and frequency converter electrically connected with vacuum pump, frequency converter electrically connected with PLC controller; Weight control module: including weighing sensor arranged on aluminum outlet device, weighing sensor electrically connected with PLC controller; Cooling liquid temperature control module: including cooling liquid circulation system for cooling aluminum outlet device, temperature sensor for detecting cooling liquid temperature, and water level sensor for detecting cooling liquid water level; Alarm module: including alarm electrically connected with PLC controller.

2. An electric control system for a vacuum aluminum extraction apparatus according to claim 1, wherein Dust bin of dust remover is provided with material level meter for detecting dust storage amount, material level meter is electrically connected with PLC controller.

3. An electric control system for a vacuum aluminum extraction apparatus according to claim 1, wherein Vacuum degree sensor for detecting vacuum degree is arranged in aluminum outlet device, vacuum degree sensor is electrically connected with PLC controller.

4. An electric control system for a vacuum aluminum extraction apparatus according to claim 1, wherein Cooling liquid circulation system, temperature sensor and water level sensor are electrically connected with PLC controller, temperature sensor is installed in cooling liquid circulation system.

5. An electric control system for a vacuum aluminum extraction apparatus according to claim 1, wherein Still include wireless transmission module connected with PLC controller data.

6. An electric control system for a vacuum aluminum extraction apparatus according to claim 1, wherein Still include display panel in communication connection with PLC controller, manual operation button on display panel includes button for manually stopping equipment.

7. An electric control system for a vacuum aluminum extraction apparatus according to claim 1, wherein Cooling liquid circulation system is refrigeration fan, circulating water pump and heat sink.

8. An electric control system for a vacuum aluminum extraction apparatus according to claim 1, wherein Cooling liquid circulation system is compressor, refrigeration pipe and heat sink.

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