Activated carbon production process control method and related device

Abstract

The invention provides an activated carbon production process control method and a related device. The method comprises the steps that feeding valves of metering tanks including a pulverized coal metering tank, a tar metering tank and a water metering tank are controlled to be opened, and the feeding valves are controlled to be closed based on the matching amount and the real-time weight of each metering tank; controlling to open a discharge valve of each metering tank, and controlling to close the discharge valve based on the proportioning amount and the real-time weight of each metering tank; determining the soft and hard state of the mixture in the kneading machine based on the host current of the kneading machine and the normal current range; when the soft and hard states are abnormal states, the discharging valves of all the metering tanks are controlled to supplement materials; and when the hardness state is moderate, controlling the kneading machine to discharge materials. According to the activated carbon production process control method, the automation degree is high, closed-loop control is achieved, generation of waste materials is reduced, and the accuracy of the matching amount can be improved; the hardness is adjusted by supplementing materials, so that overload work of equipment such as a kneading machine and a hydraulic machine is avoided, and the service life of related equipment is prolonged.

Description

Technical Field

[0001] The present disclosure relates to the technical field of activated carbon production process, and in particular, to an activated carbon production process control method and related devices. Background Art

[0002] In the activated carbon production process, the ratio of raw materials has a great influence on the indicators of the final product. If the raw material ratio does not meet the process requirements, it will lead to problems such as the strength of the activated carbon product not meeting the standards and the specifications of the formed strips not meeting the standards. There may even be problems such as overloading of the hydraulic press and excessive pressure on the hydraulic system during the pressing process, causing damage to the hydraulic press.

[0003] The existing technology mostly uses single-machine automation equipment, and each set of equipment usually requires at least one operator, which results in high personnel costs and a low degree of automation in the overall production system. Summary of the invention

[0004] The purpose of the embodiments of the present disclosure is to provide an activated carbon production process control method and related devices to solve at least one of the technical problems existing in the prior art in the activated carbon production process, such as difficulty in meeting the requirements of the proportion, easy overload damage to the hydraulic press, and low degree of automation.

[0005] In order to solve the above technical problems, the first aspect of the present invention provides an activated carbon production process control method, including: controlling to open the feed valves of metering tanks including a coal powder metering tank, a tar metering tank, and a water metering tank, and closing the feed valves based on the proportion and the real-time weight of each metering tank; controlling to open the discharge valves of each metering tank, and closing the discharge valves based on the proportion and the real-time weight of each metering tank; determining the soft and hard state of the mixture in the kneader based on the main current and normal current range of the kneader; when the soft and hard state is an abnormal state, controlling the discharge valves of each metering tank to add material; when the soft and hard state is a moderate state, controlling the kneader to discharge material.

[0006] Furthermore, the discharge valves of the metering tanks are all pneumatic butterfly valves.

[0007] Furthermore, the coal powder metering tank is provided with a coal powder weighing sensor to obtain the real-time weight of the coal powder, the tar metering tank is provided with a tar weighing sensor to obtain the real-time weight of the tar, and the water metering tank is provided with a water weighing sensor to obtain the real-time weight of the water.

[0008] Furthermore, the controlling and closing of the feed valve based on the proportion amount and the real-time weight of each metering tank includes: when the real-time weight of each metering tank is greater than or equal to a first multiple threshold of the corresponding raw material proportion amount, controlling the closing of the feed valve.

[0009] Furthermore, the abnormal state includes an over-hard state and an over-soft state. When the hard or soft state is an abnormal state, the discharge valves of each metering tank are controlled to replenish material, including: when the hard or soft state is the over-hard state, the tar replenishment amount and the water replenishment amount are calculated, and the opening and closing of the discharge valves of the tar metering tank and the water metering tank are controlled based on the tar replenishment amount and the water replenishment amount; when the hard or soft state is the over-soft state, the coal powder replenishment amount is calculated, and the opening and closing of the discharge valve of the coal powder metering tank is controlled based on the coal powder replenishment amount.

[0010] Furthermore, the method of determining the soft and hard state of the mixture in the kneading machine based on the main machine current and the normal current range of the kneading machine includes: when the main machine current is greater than the maximum value of the normal current range and maintains a first time threshold, or when the main machine current is less than the minimum value of the normal current range and maintains a second time threshold, determining that the soft and hard state is an abnormal state; when the main machine current is within the normal current range and maintains a third time threshold, determining that the soft and hard state is a moderate state.

[0011] The second aspect of the present invention provides an activated carbon production process control device, including: a feed control unit, used to control the opening of feed valves of metering tanks including a coal powder metering tank, a tar metering tank, and a water metering tank, and to close the feed valves based on the ratio and the real-time weight of each metering tank; a discharge control unit, used to control the opening of the discharge valves of each metering tank, and to close the discharge valves based on the ratio and the real-time weight of each metering tank; a soft and hard judgment unit, used to determine the soft and hard state of the mixture in the kneader based on the main current and normal current range of the kneader; a replenishment / discharge control unit, used to control the discharge valves of each metering tank to replenish when the soft and hard state is an abnormal state; and to control the kneader to discharge when the soft and hard state is a moderate state.

[0012] A third aspect of the present invention provides a computer program product, comprising a computer program, wherein the computer program implements the method when executed by a processor.

[0013] A fourth aspect of the present invention provides an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the method described is executed when the program is running.

[0014] A fifth aspect of the present invention provides a storage medium, wherein an executable program is stored in the storage medium, and when the executable program is run, the device where the storage medium is located is controlled to execute the method described.

[0015] The activated carbon production process control method provided in the first aspect of the present invention controls the feed valve of the metering tank and closes the feed valve based on the ratio and the real-time weight of the metering tank to achieve precise control of the feed of the metering tank; controls the discharge valve of the metering tank to open and close the discharge valve based on the real-time weight and the ratio to achieve precise control of the discharge of the metering tank; determines the hardness of the mixture in the kneader according to the main current of the kneader and the normal current range, and when the hardness is abnormal, feeds are added through the metering tank discharge control so that the hardness of the mixture gradually becomes moderate, and when the hardness is moderate, controls the kneader to discharge for subsequent pressing and other processes; the entire activated carbon production process has a high degree of automation, and even if there is a problem of wrong ratio, the hardness of the mixture in the kneader can be judged to control the feeding or discharging, thereby achieving closed-loop control, reducing the generation of waste, and being beneficial to improving the accuracy of the ratio; in addition, by timely closed-loop feeding to adjust the hardness, it is possible to avoid overloading of equipment such as kneaders and hydraulic presses, and extend the service life of related equipment.

[0016] The activated carbon production process control device, computer program product, electronic device, and storage medium provided in other aspects of the present invention have all the beneficial effects of the above-mentioned activated carbon production process control method, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic diagram of the steps of the activated carbon production process control method provided by the present invention;

[0019] Figure 2 A schematic diagram of the process of controlling the activated carbon production process provided by the present invention;

[0020] Figure 3 This is a schematic structural diagram of the activated carbon production process control device provided by the present invention. DETAILED DESCRIPTION

[0021] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of an embodiment. Other modifications within the scope and spirit of the present disclosure will occur to those skilled in the art.

[0022] These and other characteristics of the present disclosure will become apparent from the following description of a preferred form of embodiment given as a non-limiting example, with reference to the attached drawings.

[0023] It should also be understood that, although the present disclosure has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present disclosure that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0024] Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments claimed are merely examples of the present disclosure, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid obscuring the present disclosure with unnecessary or redundant details. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as a basis and representative basis for the claims to teach those skilled in the art to use the present disclosure in a variety of ways with substantially any suitable detailed structure.

[0025] The first aspect of the present invention provides a method for controlling an activated carbon production process, Figure 1 As shown, including:

[0026] S100, controlling to open the feed valves of metering tanks including the pulverized coal metering tank, the tar metering tank, and the water metering tank, and controlling to close the feed valves based on the proportion and the real-time weight of each metering tank;

[0027] S200, controlling to open the discharge valve of each metering tank, and controlling to close the discharge valve based on the proportion amount and the real-time weight of each metering tank;

[0028] S300, determining the soft and hard state of the mixture in the kneading machine based on the main machine current and the normal current range of the kneading machine;

[0029] S400, when the soft and hard state is in an abnormal state, controlling the discharge valves of each metering tank to replenish material; when the soft and hard state is in a moderate state, controlling the kneading machine to discharge material.

[0030] In the above-mentioned activated carbon production process control method, the main equipment involved includes metering tanks (including at least coal powder metering tanks, tar metering tanks, and water metering tanks. Since the raw materials may also include other additives, the number of metering tanks is not limited here) and kneading machines. Preferably, the coal powder metering tank is provided with a coal powder weighing sensor to obtain the real-time weight of the coal powder, the tar metering tank is provided with a tar weighing sensor to obtain the real-time weight of the tar, and the water metering tank is provided with a water weighing sensor to obtain the real-time weight of the water. In this way, the real-time weight of the coal powder, tar, and water added to the metering tank can be obtained through the coal powder weighing sensor, the tar weighing sensor, and the water weighing sensor to ensure that the proportion of the added raw materials meets the proportion requirements as much as possible.

[0031] In addition, optionally, the discharge valve of each metering tank is a pneumatic butterfly valve (the inlet valve of each metering tank can also be a pneumatic butterfly valve). In this way, the rapid opening and closing characteristics of the pneumatic butterfly valve can ensure that the weight of the added coal powder, tar, and water can meet the expectations as much as possible, avoiding the problem of large errors in the actual proportion due to slow opening and closing.

[0032] In step S100, the feed valves of the metering tanks including the coal powder metering tank, the tar metering tank, and the water metering tank are controlled to be opened, and the feed valves are controlled to be closed based on the proportion and the real-time weight of each metering tank. After receiving the opening command, the feed valves of the coal powder metering tank, the tar metering tank, and the water metering tank are controlled to be opened, and the raw materials including coal powder, tar, and water are continuously added to the corresponding metering tanks. The proportion is the proportion between the various raw materials required for the manufacture of activated carbon, which can be an ideal proportion or a proportion after optimization and adjustment.

[0033] For example, in combination Figure 2 As shown, one embodiment of the activated carbon production process control method of the present invention is shown, and the closing of the feed valve based on the proportion amount and the real-time weight control of each metering tank includes:

[0034] When the real-time weight of each metering tank is greater than or equal to the first multiple threshold of the corresponding raw material ratio, the feed valve is controlled to be closed.

[0035] The first multiple threshold here can be determined based on actual calculations. Taking the first multiple threshold of 130% as an example, when the real-time weight of each metering tank is greater than or equal to 130% of the corresponding raw material ratio (for example, for coal powder, the real-time weight of the coal powder metering tank is greater than or equal to 130% of the coal powder ratio), the feed valve is controlled to be closed. In this way, for each metering tank, the weight of the corresponding raw material has increased by a certain amount compared to the expectation. Considering the loss in the transportation process of the raw materials in the subsequent steps and other errors resulting in excessive / too little raw materials, these excess raw materials can be supplemented in the subsequent steps. At the same time, the feed valve is controlled by the real-time weight when the next round of metering tank feeding is performed, so these excess raw materials will not affect the subsequent metering tank feeding.

[0036] In step S200, the discharge valve of each metering tank is controlled to be opened, and the discharge valve is controlled to be closed based on the proportion amount and the real-time weight of each metering tank. After the discharge valve of each metering tank is opened, raw materials including coal powder, tar, and water enter the kneader. It can be determined according to the real-time weight change of each metering tank. For example, when the real-time weight change of each metering tank reaches the proportion amount (that is, each metering tank has raw materials reaching the proportion amount output from the metering tank to the kneader), the discharge valve is controlled to be closed. At this time, there is still residual raw material in the metering tank for subsequent feeding.

[0037] In step S300, the hardness and softness of the mixture in the kneading machine are determined based on the main machine current and the normal current range of the kneading machine. The normal current range of the main machine current of the kneading machine (the main machine current is usually determined by collecting three-phase currents and taking the average value) can be preset according to relevant data, that is, the normal current value interval determined by the maximum value and the minimum value. In this way, by comparing the main machine current and the normal current range, the hardness and softness of the material kneaded by the kneading machine can be reflected to a certain extent.

[0038] Furthermore, the method of determining the hardness and softness of the mixture in the kneading machine based on the main machine current and the normal current range of the kneading machine includes:

[0039] When the host current is greater than the maximum value of the normal current range and maintains the first time threshold, or when the host current is less than the minimum value of the normal current range and maintains the second time threshold, the soft and hard state is determined to be an abnormal state; when the host current is within the normal current range and maintains the third time threshold, the soft and hard state is determined to be a moderate state.

[0040] Specifically, when the host current is greater than the maximum value of the normal current range, it may be caused by the material in the kneader being too hard, or by the material not being fully mixed causing part of the material to be too hard, or other minor problems; or, when the host current is less than the minimum value of the normal current range, it may be caused by the material in the kneader being too soft, or by the material not being fully mixed causing part of the material to be too soft, or other minor problems. Therefore, it is necessary to set the first time threshold and the second time threshold to avoid the misjudgment problem of the host current being too high or too low due to these minor problems. The first time threshold and the second time threshold can be determined according to the time required for the material in the kneader to be fully mixed.

[0041] When the host current is within the normal current range (i.e., the host current is greater than or equal to the minimum value of the normal current range, and less than or equal to the maximum value of the normal current range), it may be caused by other problems such as the hardness of the material mixed in the kneading machine is moderate, or the hardness of the unmixed material is just enough. Therefore, it is necessary to set the third time threshold to avoid these problems that lead to the misjudgment that the host current is briefly within the normal current range. The third time threshold can be determined according to the time required for complete mixing of the materials in the kneading machine.

[0042] In this way, whether the main machine current falls within the normal current range is accurately judged by combining the first time threshold, the second time threshold and the third time threshold to determine whether the material in the kneading machine is in a moderate state or an abnormal state.

[0043] In step S400, when the soft and hard state is in an abnormal state, the discharge valves of each metering tank are controlled to replenish the material; when the soft and hard state is in a moderate state, the kneading machine is controlled to discharge the material.

[0044] When the hardness and softness state is abnormal, it means that the hardness and softness of the material mixed in the kneader do not meet the requirements, which means that the proportion of each raw material finally entering the kneader is not accurate enough. Therefore, by controlling the discharge valve of each metering tank, the corresponding raw materials are added to make the hardness and softness of the mixed material become moderate. When the hardness and softness state is moderate, it means that the hardness and softness of the material mixed in the kneader are moderate, which will not be too hard to cause overload and damage to the kneader and hydraulic press, nor will it cause the output quality of activated carbon to decrease. Therefore, the kneader pot door is controlled to open and release the material. After a certain period of time (the time for closing the pot door can be determined according to the actual material weight), the kneader pot door can be controlled to close, and the mixed material enters the hydraulic press for subsequent processes such as pressing.

[0045] Furthermore, combined with Figure 2 As shown, the abnormal state includes an over-hard state and an over-soft state. When the over-hard state is an abnormal state, the discharge valve of each metering tank is controlled to replenish the material, including:

[0046] When the soft and hard state is the over-hard state, the tar supplement amount and the water supplement amount are calculated, and the opening and closing of the discharge valves of the tar metering tank and the water metering tank are controlled based on the tar supplement amount and the water supplement amount; when the soft and hard state is the over-soft state, the coal powder supplement amount is calculated, and the opening and closing of the discharge valve of the coal powder metering tank is controlled based on the coal powder supplement amount.

[0047] The abnormal state specifically refers to the over-hard state and the over-soft state. When the material in the kneading machine is in an over-hard state, the main machine current of the kneading machine will increase abnormally, which may cause problems such as overloading the kneading machine and excessive pressure on the hydraulic press during subsequent pressing; when the material is in an over-soft state, it will lead to an increase in waste, and the activated carbon produced does not meet the requirements. In order to keep the kneading machine materials in a moderate state after mixing, it is necessary to add tar and water to reduce the hardness when it is in an over-hard state, and to add coal powder to increase the hardness when it is in an over-soft state. Specifically, the amount of tar added, the amount of water added, and the amount of coal powder added can be calculated based on factors such as the specific value of the main machine current, or a fixed amount of material can be added by pre-setting the added amount. This process controls the amount of material added by opening and closing the discharge valve and the real-time weight of the corresponding metering tank, which will not be repeated here.

[0048] In this way, by adding tar and water when the material is in an over-hard state, the hardness of the material will gradually soften to a moderate state, ensuring that the kneading machine and hydraulic press will not be overloaded and damaged; by adding coal powder when the material is in an over-soft state, the hardness of the material will gradually harden to a moderate state, ensuring that the ratio meets the requirements, thereby ensuring the quality of the activated carbon produced.

[0049] Optionally, combined Figure 2 and Figure 3 As shown, the pressure feedback during the pressing process of the hydraulic press is obtained, and the proportion is adjusted according to the pressure feedback. A pressure sensor is provided in the hydraulic press, and pressure feedback is performed through a feedback loop. If the pressure of the hydraulic press is too large or too small, the proportion of each raw material in the metering tank can be appropriately adjusted (for example, if the pressure feedback is too large, the tar proportion and water proportion in the proportion will increase, and if the pressure feedback is too small, the coal powder proportion in the proportion will increase); if the pressure of the hydraulic press is normal, the proportion will remain unchanged.

[0050] The activated carbon production process control method provided in the first aspect of the present invention controls the feed valve of the metering tank and closes the feed valve based on the ratio and the real-time weight of the metering tank to achieve precise control of the feed of the metering tank; controls the discharge valve of the metering tank to open and close the discharge valve based on the real-time weight and the ratio to achieve precise control of the discharge of the metering tank; determines the hardness of the mixture in the kneader according to the main current of the kneader and the normal current range, and when the hardness is abnormal, feeds are added through the metering tank discharge control so that the hardness of the mixture gradually becomes moderate, and when the hardness is moderate, controls the kneader to discharge for subsequent pressing and other processes; the entire activated carbon production process has a high degree of automation, and even if there is a problem of wrong ratio, the hardness of the mixture in the kneader can be judged to control the feeding or discharging, thereby achieving closed-loop control, reducing the generation of waste, and being beneficial to improving the accuracy of the ratio; in addition, by timely closed-loop feeding to adjust the hardness, it is possible to avoid overloading of equipment such as kneaders and hydraulic presses, and extend the service life of related equipment.

[0051] A second aspect of the present invention provides an activated carbon production process control device, comprising:

[0052] A feed control unit, used to control the opening of feed valves of metering tanks including a pulverized coal metering tank, a tar metering tank, and a water metering tank, and to control the closing of the feed valves based on the proportion and the real-time weight of each metering tank;

[0053] A discharge control unit, used for controlling the opening of the discharge valve of each metering tank, and controlling the closing of the discharge valve based on the proportion amount and the real-time weight of each metering tank;

[0054] A soft and hard judgment unit, used to determine the soft and hard state of the mixture in the kneading machine based on the main machine current and the normal current range of the kneading machine;

[0055] The material replenishment / discharge control unit is used to control the discharge valves of each metering tank to replenish material when the soft and hard state is in an abnormal state; and to control the kneading machine to discharge material when the soft and hard state is in a moderate state.

[0056] Optionally, the activated carbon production process control device further comprises:

[0057] Data acquisition unit, used to obtain the real-time weight of each metering tank, the main machine current of the kneading machine, and the pressure feedback of the hydraulic press;

[0058] The display module is used to display the real-time weight, the host current, the opening and closing status of the inlet valve, the opening and closing status of the outlet valve, the soft and hard status and other information.

[0059] In this way, accurate and timely data collection can be achieved through the data acquisition unit to ensure the control accuracy of the activated carbon production process control device; the display module can facilitate workers to view relevant information, can provide a certain early warning function, and is conducive to maintenance and repair work.

[0060] Preferably, the activated carbon production process control device also includes:

[0061] The pressing control unit is used to control the hydraulic press for pressing and adjust the proportion according to the pressure feedback.

[0062] In this way, when the mixed materials enter the hydraulic press, the hydraulic press is controlled by the pressing control unit to perform pressing.

[0063] Specifically, combined Figure 3 As shown, an embodiment of the activated carbon production process control device in the present invention is shown, wherein the feed control unit, the discharge control unit, the soft and hard judgment unit, the replenishment / discharge control unit, and the pressing control unit are all integrated in the PLC controller, and the data acquisition unit includes a weighing meter corresponding to each metering tank. The host current acquisition device and the hydraulic press pressure acquisition device in the data acquisition unit are not shown in the figure. The display module includes a touch screen. Workers can obtain relevant information through the touch screen and can also touch and operate to perform manual intervention. Finally, the relevant devices are summarized to the upper computer industrial control computer to achieve overall control.

[0064] The activated carbon production process control device provided in the second aspect of the present invention controls the feed valve of the metering tank and closes the feed valve based on the ratio and the real-time weight of the metering tank to achieve precise control of the feed of the metering tank; controls the discharge valve of the metering tank to open and close the discharge valve based on the real-time weight and the ratio to achieve precise control of the discharge of the metering tank; determines the hardness of the mixture in the kneader according to the main current of the kneader and the normal current range, and when the hardness is abnormal, feeds are added through the metering tank discharge control so that the hardness of the mixture gradually becomes moderate, and when the hardness is moderate, controls the kneader to discharge for subsequent pressing and other processes; the entire activated carbon production process has a high degree of automation, and even if there is a problem of wrong ratio, the hardness of the mixture in the kneader can be judged to control the feeding or discharging, thereby achieving closed-loop control, reducing the generation of waste, and helping to improve the accuracy of the ratio; in addition, by timely closed-loop feeding to adjust the hardness, it is possible to avoid overloading of equipment such as kneaders and hydraulic presses and extend the service life of related equipment.

[0065] A third aspect of the present invention provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the activated carbon production process control method is implemented, comprising:

[0066] S100, controlling to open the feed valves of metering tanks including the pulverized coal metering tank, the tar metering tank, and the water metering tank, and controlling to close the feed valves based on the proportion and the real-time weight of each metering tank;

[0067] S200, controlling to open the discharge valve of each metering tank, and controlling to close the discharge valve based on the proportion amount and the real-time weight of each metering tank;

[0068] S300, determining the soft and hard state of the mixture in the kneading machine based on the main machine current and the normal current range of the kneading machine;

[0069] S400, when the soft and hard state is in an abnormal state, controlling the discharge valves of each metering tank to replenish material; when the soft and hard state is in a moderate state, controlling the kneading machine to discharge material.

[0070] When the computer program product provided in the third aspect of the present invention is executed by a processor, the above-mentioned activated carbon production process control method is implemented, by controlling the feed valve of the metering tank, closing the feed valve based on the ratio and the real-time weight of the metering tank, and realizing accurate control of the feed of the metering tank; by controlling the opening of the discharge valve of the metering tank, closing the discharge valve based on the real-time weight and the ratio of the metering tank, and realizing accurate control of the discharge of the metering tank; determining the hardness and softness of the mixture in the kneading machine according to the main current of the kneading machine and the normal current range, and when the hardness and softness are abnormal, the metering tank discharge control is used to make up for the abnormal state. The material is fed into the kneader so that the hardness and softness of the mixture gradually become moderate. When the hardness and softness are moderate, the kneader is controlled to discharge the material for subsequent pressing and other processes. The entire activated carbon production process has a high degree of automation. Even if there is a problem of incorrect proportioning, the hardness and softness of the mixture in the kneader can be judged to control the feeding or discharging of the material, thereby realizing closed-loop control, reducing the generation of waste, and being beneficial to improving the accuracy of the proportioning. In addition, timely closed-loop feeding and adjustment of the hardness and softness can avoid overloading of equipment such as kneading machines and hydraulic presses, thereby extending the service life of related equipment.

[0071] A fourth aspect of the present invention provides an electronic device, comprising:

[0072] A memory storing an executable program;

[0073] A processor is used to run the program, wherein when the program is run, the activated carbon production process control method is executed, including:

[0074] S100, controlling to open the feed valves of metering tanks including the pulverized coal metering tank, the tar metering tank, and the water metering tank, and controlling to close the feed valves based on the proportion and the real-time weight of each metering tank;

[0075] S200, controlling to open the discharge valve of each metering tank, and controlling to close the discharge valve based on the proportion amount and the real-time weight of each metering tank;

[0076] S300, determining the soft and hard state of the mixture in the kneading machine based on the main machine current and the normal current range of the kneading machine;

[0077] S400, when the soft and hard state is in an abnormal state, controlling the discharge valves of each metering tank to replenish material; when the soft and hard state is in a moderate state, controlling the kneading machine to discharge material.

[0078] The electronic device provided by the fourth aspect of the present invention realizes the above-mentioned activated carbon production process control method when its processor executes the stored program, by controlling the feed valve of the metering tank, closing the feed valve based on the ratio and the real-time weight of the metering tank, and realizing accurate control of the metering tank feeding; by controlling the opening of the discharge valve of the metering tank, closing the discharge valve based on the real-time weight and the ratio of the metering tank, and realizing accurate control of the metering tank discharge; determining the hardness and softness state of the mixture in the kneading machine according to the main current of the kneading machine and the normal current range, and when the hardness and softness state is abnormal, controlling the discharge of the metering tank by the metering tank discharge control By adding materials, the hardness and softness of the mixture gradually become moderate. When the hardness and softness are moderate, the kneading machine is controlled to discharge materials for subsequent pressing and other processes. The entire activated carbon production process has a high degree of automation. Even if there is a problem of incorrect proportioning, the hardness and softness of the mixture in the kneading machine can be judged to control the addition or discharge of materials, thereby realizing closed-loop control, reducing the generation of waste materials, and helping to improve the accuracy of the proportioning. In addition, timely closed-loop feeding to adjust the hardness and softness can avoid overloading of equipment such as kneading machines and hydraulic presses, thereby extending the service life of related equipment.

[0079] A fifth aspect of the present invention provides a storage medium, wherein an executable program is stored in the storage medium, and when the executable program is run, the device where the storage medium is located is controlled to execute the activated carbon production process control method, including:

[0080] S100, controlling to open the feed valves of metering tanks including the pulverized coal metering tank, the tar metering tank, and the water metering tank, and controlling to close the feed valves based on the proportion and the real-time weight of each metering tank;

[0081] S200, controlling to open the discharge valve of each metering tank, and controlling to close the discharge valve based on the proportion amount and the real-time weight of each metering tank;

[0082] S300, determining the soft and hard state of the mixture in the kneading machine based on the main machine current and the normal current range of the kneading machine;

[0083] S400, when the soft and hard state is in an abnormal state, controlling the discharge valves of each metering tank to replenish material; when the soft and hard state is in a moderate state, controlling the kneading machine to discharge material.

[0084] The storage medium provided in the fifth aspect of the present invention can control the device to execute the above-mentioned activated carbon production process control method when its executable program is running, by controlling the feed valve of the metering tank, closing the feed valve based on the ratio and the real-time weight of the metering tank, and realizing accurate control of the feed of the metering tank; by controlling the opening of the discharge valve of the metering tank, closing the discharge valve based on the real-time weight and the ratio of the metering tank, and realizing accurate control of the discharge of the metering tank; determining the hardness and softness of the mixture in the kneading machine according to the main current of the kneading machine and the normal current range, and when the hardness and softness are abnormal, the discharge control of the metering tank is performed. Feeding is carried out to make the hardness and softness of the mixture gradually become moderate. When the hardness and softness are moderate, the kneading machine is controlled to discharge the material for subsequent pressing and other processes. The entire activated carbon production process has a high degree of automation. Even if there is a problem of incorrect proportioning, the hardness and softness of the mixture in the kneading machine can be judged to control the feeding or discharging of the material, thereby realizing closed-loop control, reducing the generation of waste, and helping to improve the accuracy of the proportioning. In addition, timely closed-loop feeding to adjust the hardness and softness can avoid overloading of equipment such as kneading machines and hydraulic presses, thereby extending the service life of related equipment.

[0085] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0086] In addition, the embodiments shown in the drawings of the present application or the features of the various embodiments mentioned in this specification are not necessarily understood as independent embodiments. Instead, each feature described in one example of an embodiment can be combined with one or more other desired features from other embodiments to produce other embodiments not described in words or with reference to the drawings.

[0087] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for controlling an activated carbon production process, characterized in that: include: Control opening of the feed valves of metering tanks including the pulverized coal metering tank, the tar metering tank, and the water metering tank, and control closing of the feed valves based on the proportion and the real-time weight of each metering tank; Controlling to open the discharge valve of each metering tank, and controlling to close the discharge valve based on the proportion amount and the real-time weight of each metering tank; Determine the soft and hard state of the mixture in the kneading machine based on the main machine current and the normal current range of the kneading machine; When the soft and hard state is in an abnormal state, the discharge valves of each metering tank are controlled to replenish the material; when the soft and hard state is in a moderate state, the kneading machine is controlled to discharge the material.

2. The method according to claim 1, characterized in that The discharge valves of the metering tanks are all pneumatic butterfly valves.

3. The method according to claim 1, characterized in that The coal powder metering tank is provided with a coal powder weighing sensor to obtain the real-time weight of the coal powder, the tar metering tank is provided with a tar weighing sensor to obtain the real-time weight of the tar, and the water metering tank is provided with a water weighing sensor to obtain the real-time weight of the water.

4. The method according to claim 1, characterized in that: The method of closing the feed valve based on the proportion and the real-time weight control of each metering tank includes: When the real-time weight of each metering tank is greater than or equal to the first multiple threshold of the corresponding raw material ratio, the feed valve is controlled to be closed.

5. The method according to claim 1, characterized in that The abnormal state includes an over-hard state and an over-soft state. When the over-hard state is an abnormal state, the discharge valve of each metering tank is controlled to replenish the material, including: When the soft and hard state is the over-hard state, the tar supplement amount and the water supplement amount are calculated, and the opening and closing of the discharge valves of the tar metering tank and the water metering tank are controlled based on the tar supplement amount and the water supplement amount; when the soft and hard state is the over-soft state, the coal powder supplement amount is calculated, and the opening and closing of the discharge valve of the coal powder metering tank is controlled based on the coal powder supplement amount.

6. The method according to claim 1, characterized in that The method of determining the softness and hardness of the mixture in the kneading machine based on the main machine current and the normal current range of the kneading machine includes: When the host current is greater than the maximum value of the normal current range and maintains a first time threshold, or when the host current is less than the minimum value of the normal current range and maintains a second time threshold, determining that the soft and hard state is an abnormal state; When the host current is within the normal current range and maintains a third time threshold, the soft and hard state is determined to be a moderate state.

7. An activated carbon production process control device, characterized in that: include: A feed control unit, used to control the opening of feed valves of metering tanks including a pulverized coal metering tank, a tar metering tank, and a water metering tank, and to control the closing of the feed valves based on the proportion and the real-time weight of each metering tank; A discharge control unit, used for controlling the opening of the discharge valve of each metering tank, and controlling the closing of the discharge valve based on the proportion amount and the real-time weight of each metering tank; A soft and hard judgment unit, used to determine the soft and hard state of the mixture in the kneading machine based on the main machine current and the normal current range of the kneading machine; The material replenishment / discharge control unit is used to control the discharge valves of each metering tank to replenish material when the soft and hard state is in an abnormal state; and to control the kneading machine to discharge material when the soft and hard state is in a moderate state.

8. A computer program product, characterized in that The invention comprises a computer program which, when executed by a processor, implements the method according to any one of claims 1 to 6.

9. An electronic device, characterized in that: include: A memory storing an executable program; A processor, configured to run the program, wherein the program executes the method according to any one of claims 1 to 6 when running.

10. A storage medium, characterized in that: The storage medium stores an executable program, and when the executable program is run, the device where the storage medium is located is controlled to execute the method according to any one of claims 1 to 6.

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