Energy-saving and environment-friendly fast forming device for producing columnar activated carbon

Abstract

The present application belongs to the technical field of activated carbon production, and particularly relates to an energy-saving and environment-friendly type fast forming device for columnar activated carbon production. Through a calculated particulate matter concentration growth curve and a preset particulate matter attenuation curve, particulate matter concentration exceeding data is calculated according to the growth curve, and a deceleration amount is calculated based on the pre-stored attenuation curve. A main control module generates a deceleration instruction according to the deceleration amount, and outputs the deceleration instruction to control the forming device main body to run at a reduced speed. The main control module reduces the running speed of the equipment, so that the attenuation speed of the particulate matter concentration in the air is greater than the increase speed. After maintaining the specific running time of the running speed, the particulate matter concentration in the air decreases. Through intelligent calculation, the production efficiency loss caused by the need to reserve a redundant deceleration amount when the operator manually operates is avoided, the deceleration time is accurate, and the production efficiency can be restored in time.

Description

Technical Field

[0001] This invention belongs to the field of activated carbon production technology, specifically relating to an energy-saving and environmentally friendly rapid prototyping device for producing columnar activated carbon. Background Technology

[0002] Activated carbon is made by grinding natural materials such as wood, coconut shells, and coal, or artificial synthetic materials into powder in a certain proportion, and then extruding the powdered raw materials into columnar shapes. The forming device for extruding activated carbon powder adopts the existing technology disclosed in CN117359992B, which discloses a forming device for producing columnar activated carbon. This device can achieve batch processing of activated carbon columns through extrusion molding, with fast production speed and stable forming effect. However, the problem is that this existing technology involves high-speed powder injection and extrusion operations during the extrusion molding process. The high-speed and frequent powder movement and impact inevitably generate dust. After a period of accumulation, the concentration of particulate matter in the production environment where the forming equipment is located exceeds the standard, affecting air quality and easily causing short circuits in the equipment.

[0003] When operating existing equipment, although dust will settle to the ground due to gravity after floating for a certain period of time, and will gradually disperse with the air flow in the workshop, the cumulative increase in dust generated by continuously operating equipment is still greater than the natural reduction. Therefore, it is necessary for operators to suspend production or significantly reduce the operating speed of equipment every once in a while to achieve the purpose of dust reduction.

[0004] Since operators rely solely on experience and intuition to control the equipment speed, they typically implement significant speed reductions with redundancy to avoid insufficient deceleration and failure to reduce dust particle concentration. However, this severely impacts production efficiency and is extremely detrimental to products like activated carbon columns that require large production batches and high capacity.

[0005] In conclusion, there is an urgent need for an activated carbon forming device that can reduce pollution while also enabling rapid production. Summary of the Invention

[0006] To address the aforementioned problems in the existing technology, this invention provides an energy-saving and environmentally friendly rapid prototyping device for the production of columnar activated carbon, which solves the problem that when the dust concentration reaches the standard value, the operator can only adjust the equipment speed based on experience and feeling, thus slowing down the production progress.

[0007] The objective of this invention can be achieved through the following technical solution: an energy-saving and environmentally friendly rapid prototyping device for producing columnar activated carbon, comprising a prototyping device body, a main control module for controlling the prototyping device body, and a particulate matter detection module;

[0008] The particulate matter detection module is used to detect the change data of particulate matter concentration in the air during a period of time when the main body of the molding device operates at its rated speed, and uploads it to the main control module to generate a curve of the cumulative increase of particulate matter concentration over time.

[0009] The main control module has a pre-stored decay curve of particulate matter concentration as a function of speed and time when the main body of the molding device is running at each low-speed node.

[0010] The main control module calculates the particulate matter concentration exceeding the standard based on the growth curve, and then calculates the deceleration amount based on the pre-stored decay curve. The main control module generates a deceleration command based on the deceleration amount and outputs the deceleration command to control the main body of the molding device to run at a reduced speed.

[0011] Preferably, the main control module calculates the deceleration time and deceleration amount based on the particulate matter concentration exceeding the standard value, the growth curve, and the decay curve.

[0012] Preferably, the main control module calculates the time difference between the current time node and the time node when the particulate matter concentration exceeds the standard based on the growth curve. The time difference is calibrated as the adjustment time, and the deceleration amount is calculated by referring to the decay curve, the growth curve, and the adjustment time.

[0013] Preferably, it also includes a temperature detection module, which is electrically connected to the main control module. The temperature detection module is used to detect the ambient temperature in real time and transmit the ambient temperature to the main control module.

[0014] The main control module has a preset ambient temperature-particulate matter concentration curve that shows the rated particulate matter concentration changing with temperature. The main control module calculates and corrects the deceleration time and deceleration amount based on the ambient temperature and the ambient temperature-particulate matter concentration curve, and generates corrected deceleration time and corrected deceleration amount respectively.

[0015] Preferably, the main control module generates the data by fitting historical ambient temperature and historical particulate matter concentration to the device at its rated speed.

[0016] Preferably, it also includes a device working data acquisition module, which is electrically connected to the main control module. The device working data acquisition module is used to acquire real-time device working data and transmit the real-time device working data to the main control module. The main control module calculates the heat generated by the device within a certain period of time based on the real-time device working data.

[0017] The main control module establishes a heat generation-ambient temperature-time curve between the real-time heat generation of the device and the real-time ambient temperature. Based on the heat generation-ambient temperature-time curve and the real-time device operating data, the main control module calculates the trend of the ambient temperature change over time.

[0018] Preferably, it also includes a historical data acquisition module and a raw material temperature control module, wherein the historical data acquisition module and the raw material temperature control module are electrically connected to the main control module respectively;

[0019] The historical data acquisition module is used to acquire historical data, including historical equipment operating data and historical raw material temperature data, and transmit the historical data to the main control module.

[0020] The main control module is used to generate equipment operation-raw material temperature-time curves by combining historical data;

[0021] The main control module predicts the future trend of raw material temperature based on the equipment operation-raw material temperature-time curve and real-time equipment operation data.

[0022] The main control module generates a temperature adjustment command based on the difference between the predicted trend of raw material temperature change and the preset raw material temperature range. The temperature adjustment command is used to control the predicted future raw material temperature to remain within the preset raw material temperature range.

[0023] The temperature control module receives and executes temperature adjustment commands to regulate the temperature of the raw materials.

[0024] Preferably, the particulate matter detection module includes a detection unit and a filtering unit, wherein the detection unit is used to acquire particulate matter concentration, and the filtering unit is used to filter the particulate matter concentration.

[0025] The beneficial effects of this invention are as follows:

[0026] This invention calculates particulate matter concentration growth curves and preset particulate matter decay curves. Based on the growth curve, it calculates the particulate matter concentration exceeding the standard, and then calculates the deceleration amount based on the pre-stored decay curve. The main control module generates a deceleration command based on the deceleration amount and outputs the deceleration command to control the main body of the molding device to reduce its operating speed. By reducing the operating speed of the equipment, the rate of decay of particulate matter concentration in the air is made greater than the rate of increase. After maintaining this operating speed for a specific period of time, the particulate matter concentration in the air decreases. Intelligent calculation avoids the production efficiency loss caused by the need for manual operation to reserve redundant deceleration amounts, and the precise deceleration time allows for timely restoration of production efficiency. Attached Figure Description

[0027] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0028] Figure 1 This is a system structure block diagram of the present invention. Detailed Implementation

[0029] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0030] To improve production efficiency, the overall operating speed of the molding device will be increased. Consequently, the operating speed of the equipment will also increase. Due to the mechanical movement during operation, dust will be stirred up, further increasing the concentration of particulate matter in the air. When the concentration of particulate matter in the air reaches the pollution value stipulated by environmental regulations, production needs to be stopped and corresponding dust suppression measures need to be taken until the concentration of pollutants in the air is lower than the pollution value.

[0031] Furthermore, to ensure that the theoretically optimal equipment production speed can be achieved and rapid production efficiency maintained in a low-pollution environment, please refer to [link / reference needed]. Figure 1 One embodiment provides an energy-saving and environmentally friendly rapid prototyping device for producing columnar activated carbon. This device comprises a main body integrating feeding, extrusion, and other complete processes, and is also equipped with a main control module for controlling the main body. Standardized production of activated carbon columns can be achieved through pre-programmed control of the main control module.

[0032] Regarding air pollution, a particulate matter detection module has been added to detect the amount of dust generated by the dust-raising effect in the air, i.e., particulate matter concentration data. Since some of the dispersed dust in the air settles due to gravity and some diffuses due to airflow, as long as the equipment continues to operate at its rated power, it will inevitably continue to generate increased dust. With the increase in equipment operating time, the overall particulate matter concentration still shows an increasing trend. Because the raw material for activated carbon is itself in powder form, ventilation fans cannot be used to disperse particulate matter in the air. The airflow from a ventilation fan would blow the raw material, causing it to drift and further increasing the particulate matter concentration in the air, even resulting in material waste. Furthermore, because the temperature and humidity of the raw material must be maintained within a specific range during activated carbon extrusion molding to ensure the final extrusion molding effect, particulate matter in the air cannot be reduced by spraying methods. Therefore, after the particulate matter concentration in the air reaches a certain peak, the operating speed of the equipment needs to be reduced so that the rate of decrease in the particulate matter concentration is greater than the rate of increase. After maintaining this for a certain period, the particulate matter concentration in the air will inevitably decrease.

[0033] To accurately calculate or predict changes in particulate matter concentration, a particulate matter detection module needs to continuously monitor the concentration of particulate matter in the air. This data is then uploaded to the main control module, and combined with time data provided by a timer, a curve showing the increase in particulate matter concentration over time under the equipment's rated speed operating conditions can be generated. When the equipment is running at its rated speed, the timer records the particulate matter concentration data collected by the particulate matter detection module at the corresponding time point, and the detection data from the timer and the particulate matter detection module are aligned in time series.

[0034] This allows us to obtain a curve showing the increase in particulate matter concentration over time when the equipment is operating at its rated speed. This curve can represent the value of particulate matter concentration at a specific point in time, or the increasing trend of particulate matter concentration over a period of time.

[0035] To fully utilize the growth curve, a reference needs to be set in advance. In this embodiment, the reference is based on standard workshop conditions, where the operating speed of the equipment is uniformly adjusted, and the equipment is kept running stably at each operating speed node. Starting at the moment of speed adjustment, the change data of particulate matter concentration over time at the current operating speed is recorded at intervals to obtain the relationship between the particulate matter concentration data and time at the current operating speed.

[0036] Arranging these data in order of decreasing velocity yields the decay curve. The decay curve can show the trend of particulate matter concentration changing over time at the same velocity, and it can also show the trend of the effect of decreasing velocity on particulate matter concentration over the same time period.

[0037] When the main control module has both types of curves, it can calculate the real-time particulate matter concentration data and compare it with the air pollution index specified by the national standard to obtain the specific particulate matter concentration exceeding the standard data. The exceeding data here is the difference between the particulate matter concentration in the air and the standard particulate matter concentration.

[0038] Then, based on the real-time particulate matter concentration exceeding the standard data, a calculation formula is established to process the data under the influence of the two curves, obtaining the specific equipment operating speed value and maintenance time. The difference between the equipment operating speed value and the current rated operating speed value yields the equipment speed reduction amount. The maintenance time is the deceleration time. The main control module sends commands through these two data points to cause the various mechanisms of the forming device to reduce their speed to lower the particulate matter concentration over a period of time, ensuring the air quality meets the standards.

[0039] This control method is intelligent and automatic, avoiding the production efficiency loss caused by the need for operators to reserve redundant speed reduction when operating manually. Moreover, the speed reduction time is precise, which can restore production efficiency in a timely manner.

[0040] Since the main control module can obtain the growth curve and decay curve, it has the ability to predict the trend of particulate matter concentration change after a period of time. Therefore, the standard for calculating particulate matter concentration exceeding the standard can also be divided into a control method of reducing the speed to reduce the amount of excess after exceeding the standard, or a control method of slightly reducing the speed in advance to maintain a balanced state when the time of exceeding the standard is predicted.

[0041] For the first control method of reducing the excessive amount after exceeding the standard, in one embodiment, the main control module obtains the specific excess value of particulate matter concentration by receiving real-time data uploaded by the particulate matter detection module, comparing it with the national standard data, and then calculating the difference. Based on the real-time excess value being zeroed under the influence of the two curves, a calculation formula is established for data processing to obtain the specific equipment operating speed value and maintenance time. The equipment deceleration amount is obtained by subtracting the equipment operating speed value from the current rated operating speed value. The maintenance time is the deceleration time.

[0042] For the second type of control method that predicts the time of exceeding the standard and reduces the speed slightly in advance to maintain a balanced state, in one embodiment, the main control module obtains the current particulate matter concentration data by substituting the pollutant concentration data specified by the national standard and the real-time detected particulate matter concentration data into the growth curve. It then obtains the time node corresponding to the current particulate matter concentration data and the time node corresponding to the particulate matter concentration data exceeding the standard at the current operating speed. The difference between the two time nodes is the time period. This time period is used as the monitoring time, and the speed adjustment of the equipment is triggered before the time period is reached.

[0043] This method of maintaining air quality by slightly slowing down production ensures that air pollutants do not exceed standards within the specified time period. It is conducive to efficient production in a short period of time, ending the production process before the time point when standards are exceeded, avoiding the impact of significant slowdown, and maintaining a relatively fast production mode to the maximum extent.

[0044] In one embodiment, since many interfering factors exist in the environment, such as humidity and temperature, which can affect the detection accuracy of the particulate matter detection module, the particulate matter detection module includes a detection unit, a self-calibration unit, and a filtering unit to improve the accuracy of the detection data. These three units are connected sequentially. The self-calibration unit performs zero-point and range calibration on the detection unit at preset time intervals. The calibration data is processed by the filtering unit and then transmitted to the main control module. The detection unit includes a laser scattering sensor array. The detection data from the laser sensor arrays are cross-referenced and compensated, enabling mutual verification between the two sets of data. The self-calibration unit can reduce errors caused by the laser scattering sensor itself after long detection cycles by connecting a self-calibration circuit to the detection loop circuit.

[0045] The particulate matter concentration data includes the concentration data of fine particulate matter (PM2.5) and inhalable particulate matter (PM10) in the Air Quality Index (AQI) pollutant detection scope.

[0046] Because changes in ambient temperature affect the concentration of particulate matter in the workshop, when the temperature rises, particulate matter molecules in the air diffuse faster and are more likely to adhere to equipment or settle on the ground, thus causing the concentration of particulate matter in the air to decrease more quickly. Therefore, when the temperature rises, the rate of decrease in the concentration of particulate matter in the air will be faster than that of the same ambient temperature. Conversely, when the ambient temperature falls, the rate of decrease in the concentration of particulate matter in the air will be slower than that of the same ambient temperature.

[0047] Therefore, changes in ambient temperature will affect the effect of reducing the concentration of particulate matter molecules in the air by decreasing the operating speed of the equipment. Therefore, in one embodiment, a temperature detection module is also included. The temperature detection module is electrically connected to the main control module, and the temperature detection module detects the ambient temperature in real time and transmits the ambient temperature to the main control module.

[0048] The main control module has a preset ambient temperature-particulate matter concentration curve for rated particulate matter concentration. This curve is calculated under experimental conditions. By setting the equipment's rated operating speed, the particulate matter concentration in the air and the ambient temperature in the workshop are monitored to obtain a trend curve showing the change in air particulate matter concentration with ambient temperature at that rated speed. This trend curve represents the impact of ambient temperature changes on air particulate matter concentration at the equipment's rated operating speed. Multiple sets of equipment operating speeds need to be set to measure the trend of air particulate matter concentration with ambient temperature. Based on the ambient temperature and the ambient temperature-particulate matter concentration curve, the main control module, at the equipment's rated operating speed, reduces the air particulate matter concentration by ensuring that the total decrease in the amount of particulate matter molecules exceeds the total increase.

[0049] The main control module extracts the influence factor of ambient temperature on particulate matter concentration based on the ambient temperature-particulate matter concentration curve, calculates and corrects the deceleration time and deceleration amount, and generates corrected deceleration time and corrected deceleration amount respectively.

[0050] Because the equipment dissipates heat during operation, the ambient temperature in the workshop will rise relative to the original ambient temperature after the equipment has been running for a period of time. The system also includes an equipment operation data acquisition module, which is electrically connected to the main control module. The equipment operation data acquisition module is used to acquire real-time equipment operation data and transmit the real-time equipment operation data to the main control module. The main control module calculates the heat generated by the equipment within a certain working time based on the real-time equipment operation data and the heat conversion equation. The heat generation data here refers to the data that affects the heat generation of the equipment during operation, including the operating power and the operating time.

[0051] The main control module establishes a heat generation-ambient temperature-time curve between the real-time heat generation of the equipment and the real-time ambient temperature. Based on the heat generation-ambient temperature-time curve and the equipment running at the current speed, the main control module obtains the real-time equipment operating data and calculates the trend of ambient temperature change over time based on the real-time equipment operating data.

[0052] Regarding the impact of equipment operating heat on ambient temperature, historical data can be used to simulate and calculate the equipment operating data-ambient temperature curve, thereby obtaining the trend of ambient temperature change affected by equipment operating heat, and further revealing the trend of ambient temperature change over time.

[0053] Since the temperature of the raw material needs to be controlled to keep it within a specific temperature range during the extrusion molding process of activated carbon, in one embodiment, a historical data acquisition module and a raw material temperature control module are also included, which are electrically connected to the main control module respectively.

[0054] The historical data acquisition module is used to acquire historical data and transmit the historical data to the main control module. The historical data includes the equipment's historical operating data and historical raw material temperature data.

[0055] The main control module is used to generate equipment operation-raw material temperature-time curves by combining historical data;

[0056] The main control module predicts the trend of raw material temperature change over a certain period of time based on the equipment operation-raw material temperature-time curve and real-time equipment operation data.

[0057] The main control module generates a temperature adjustment command based on the difference between the predicted trend of raw material temperature change and the preset raw material temperature range. This temperature adjustment command ensures that the predicted future raw material temperature is within the preset raw material temperature range, which is the preset temperature range required for the activated carbon raw material in the activated carbon forming device.

[0058] The temperature control module controls the actuators within the molding device that regulate the temperature of the raw materials. It receives temperature adjustment commands from the main control module and executes these commands to regulate the raw material temperature. The actuators that regulate the raw material temperature typically include insulation boxes or other insulation equipment. The temperature control module can control the operating parameters of these actuators. The temperature control module parses the temperature adjustment commands and controls the operating parameters of the actuators to achieve temperature control of the raw materials.

[0059] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An energy-saving and environmentally friendly rapid prototyping device for producing columnar activated carbon, characterized in that: The molding device comprises a molding device body, a main control module for controlling the molding device body, and a particulate matter detection module; The particulate matter detection module is configured to detect the concentration of particulate matter in the air during the operation of the molding device body at a rated speed for a period of time, and upload the data to the main control module to generate a growth curve of the concentration of particulate matter over time; The main control module pre-stores the attenuation curve of the concentration of particulate matter over speed and time at each low-speed node operation state of the molding device body; The main control module calculates the over-standard data of the concentration of particulate matter according to the growth curve, and calculates the deceleration amount based on the pre-stored attenuation curve, and generates a deceleration instruction according to the deceleration amount, and outputs the deceleration instruction to control the molding device body to operate at a reduced speed; The main control module calculates the deceleration time and deceleration amount according to the over-standard concentration of particulate matter, the growth curve and the attenuation curve; The molding device further comprises a temperature detection module, which is electrically connected to the main control module, and is configured to detect the ambient temperature in real time and transmit the ambient temperature to the main control module; The main control module pre-stores an ambient temperature-particulate matter concentration curve representing the change of the rated concentration of particulate matter with temperature, and calculates and corrects the deceleration time and the deceleration amount according to the ambient temperature and the ambient temperature-particulate matter concentration curve, and generates a corrected deceleration time and a corrected deceleration amount, respectively.

2. The energy-saving and environment-friendly rapid forming device for producing columnar activated carbon according to claim 1, characterized in that: The main control module calculates the time difference between the current time node and the over-standard time node of the concentration of particulate matter according to the growth curve, and the time difference is set as the adjustment time.

3. The energy-saving and environment-friendly rapid forming device for producing columnar activated carbon according to claim 2, characterized in that: The ambient temperature-particulate matter concentration curve represents the influence of the change of the ambient temperature on the concentration of particulate matter in the air at the rated operating speed of the device.

4. The energy-saving and environment-friendly rapid forming device for producing columnar activated carbon according to claim 2, characterized in that: The molding device further comprises a device work data acquisition module, which is electrically connected to the main control module, and is configured to acquire real-time device work data and transmit the real-time device work data to the main control module, and the main control module calculates the heat generation of the device within a certain time according to the real-time device work data; The main control module establishes a device heat generation-ambient temperature-time curve between the real-time device heat generation and the real-time ambient temperature, and calculates the change trend of the ambient temperature over time according to the device heat generation-ambient temperature-time curve and in combination with the real-time device work data.

5. The energy-saving and environment-friendly rapid forming device for producing columnar activated carbon according to claim 2, characterized in that: The molding device further comprises a historical data acquisition module and a raw material temperature control module, which are respectively electrically connected to the main control module; The historical data acquisition module is configured to acquire historical data, which includes historical device work data and historical raw material temperature data of the device, and transmit the historical data to the main control module; The main control module is configured to generate a device work-raw material temperature-time curve in combination with the historical data; The main control module predicts the change trend of the raw material temperature at a future time according to the device work-raw material temperature-time curve and in combination with the real-time device work data; The main control module generates a temperature adjustment instruction according to a difference between a predicted change trend of the raw material temperature and a preset raw material temperature interval, and the temperature adjustment instruction is used to control the predicted future raw material temperature to be kept in the preset raw material temperature interval. The temperature control module receives and executes the temperature adjustment instruction to regulate the raw material temperature.

6. The energy-saving and environment-friendly rapid forming device for producing columnar activated carbon according to claim 5, characterized in that: The particulate matter detection module comprises a detection unit and a filtering unit, the detection unit is used to acquire the particulate matter concentration, and the filtering unit is used to filter the particulate matter concentration.

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