CN112405870A - Intelligent control system and control method for foam concrete preparation machine - Google Patents
Intelligent control system and control method for foam concrete preparation machine Download PDFInfo
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- CN112405870A CN112405870A CN202011302961.XA CN202011302961A CN112405870A CN 112405870 A CN112405870 A CN 112405870A CN 202011302961 A CN202011302961 A CN 202011302961A CN 112405870 A CN112405870 A CN 112405870A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/02—Controlling the operation of the mixing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C9/00—General arrangement or layout of plant
- B28C9/002—Mixing systems, i.e. flow charts or diagrams; Making slurries; Involving methodical aspects; Involving pretreatment of ingredients; Involving packaging
Abstract
The invention discloses an intelligent control system of a foam concrete preparation machine, which comprises a human-computer interface component, a central controller component, a raw material metering component, a raw material power control component, a raw material flow monitoring component and a fluid power output control component, wherein the human-computer interface component is connected with the central controller component through a pipeline; wherein, the human-computer interface part is connected with the central controller part; the central controller part is respectively connected with the raw material metering part, the raw material power control part, the raw material flow monitoring part and the fluid power output control part in a signal mode. The invention adopts an automatic control mode of intelligent information processing, intelligent information feedback and intelligent control decision, only technical parameters such as foam concrete wet density, foam density, mixing proportion, yield and the like need to be input when the device is used, after the device is started, a control system automatically controls the feeding, metering and stirring of raw materials, dynamically adjusts the output quantities of clean slurry, foaming agent diluent and compressed gas, and fully realizes electronic metering, automatic control and intelligent adjustment.
Description
Technical Field
The invention relates to the technical field of mechanical intelligence, in particular to an intelligent control system of a foam concrete preparation machine and a control method thereof.
Background
A foam concrete preparation machine (preparation machine for foamed concrete) is a special equipment for producing foam concrete, foam lightweight soil, foam mixed lightweight soil, foam cement, foam concrete (hereinafter, collectively referred to as "foam concrete") and is used for cast-in-place construction or casting of foam concrete products. The foam concrete preparation machine comprises the following components: raw material preparing and conveying device, stirring and pulping device, foaming device, foam mixing device, foam concrete slurry conveying device and the like.
The foaming process adopted by the foam concrete preparation machine for producing the foam concrete is physical foaming generally, and the specific foaming process is that a compressed gas generator is adopted to compress air or gases such as nitrogen, carbon dioxide, oxygen and the like, and then the compressed gas and a foam agent are diluted by water in proportion to form foam liquid which enters a foaming device together to prepare aqueous foam group. The physical foaming mode of the foam concrete is to mix the foam group with water, cement, admixture and other raw materials into pure slurry in a physical mode to form foam concrete slurry. The foam group should meet the requirements of no destruction and no deformation of the foam concrete slurry before final setting, so as to achieve the purpose of air entraining in the clean slurry. And after the clean slurry and the foam group are uniformly mixed in the foam mixing device, the foam concrete slurry is conveyed by the foam concrete slurry conveying device and is injected into an operation surface or a mold for molding, and the foam concrete is formed.
The applicant finds that the existing control system for the foam concrete preparation machine has great inconvenience in equipment adjustment and use in actual production and construction application, and the performance and quality of the produced foam concrete are difficult to accurately control. The main problems are as follows:
1. in the field debugging processes of foam density, foam concrete wet density and the like, the foam density, the foam concrete wet density and the like need to be adjusted for multiple times according to the condition of the prepared foam concrete to reach the specified technical index, the time consumption is long, and the raw materials are seriously wasted;
2. the density difference of the foam and the foam concrete slurry at different time points when the foam concrete preparation machine continuously produces the foam concrete reflects the continuous and uniform degree of the foam concrete slurry produced by the preparation machine, and the difference rate of the foam density and the density of the foam concrete slurry is large in the actual construction production process, so that the performance quality of the foam concrete is influenced.
The applicant researches deeply and discovers that due to the influences of differences of raw materials, technical requirements and field environmental factors, the raw materials are not accurately metered in the working process of the foam concrete preparation machine, output flows of net slurry, foaming agent dilution water and compressed gas are mutually influenced, and in addition, pipeline pressure change and other external factor interferences interfere, the output flows of all components are easy to fluctuate greatly, the output quantities of all components cannot be dynamically regulated and controlled accurately in real time to achieve dynamic balance, and therefore the defect that the difference rate of foam density and foam concrete slurry density is large in the production process is caused.
Therefore, it is necessary to provide an intelligent control system for a foam concrete preparation machine, which can perform real-time and accurate calculation and control and dynamically adjust the output of each component, so as to ensure stable quality and performance of the produced foam concrete and improve the working efficiency.
Disclosure of Invention
In view of this, the present invention aims to provide an intelligent control system for a foam concrete preparation machine and a control method thereof, which have the characteristics of simple and rapid adjustment and low density difference rate between foam and foam concrete slurry, can effectively reduce the technical difficulty and working strength of equipment operation, and the produced foam concrete slurry has strong continuity and stability, stable and controllable quality, and is suitable for various types of foam concrete preparation machines.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent control system of a foam concrete preparation machine comprises a human-computer interface component, a central controller component, a raw material metering component, a raw material power control component, a raw material flow monitoring component and a fluid power output control component; wherein, the human-computer interface part is connected with the central controller part; the central controller part is respectively connected with the raw material metering part, the raw material power control part, the raw material flow monitoring part and the fluid power output control part in a signal mode.
The invention has the advantages that the automatic control mode of intelligent information processing, intelligent information feedback and intelligent control decision is adopted, only technical parameters such as foam concrete wet density, foam density, mixing proportion, yield and the like need to be input when the device is started, the control system automatically controls the feeding, metering and stirring of raw materials after the device is started, the output quantities of clean slurry, foaming agent dilution water and compressed gas are dynamically adjusted, and electronic metering, automatic control and intelligent adjustment are fully realized.
Further, the central controller part is any one of a PLC (programmable logic controller), an industrial control computer, a singlechip or an intelligent control circuit.
Further, the raw material metering unit is a load cell for weighing water, cement and admixture.
Further, the raw material power control unit is an electric control switch corresponding to each of power devices such as a water pump and a raw material feeder.
Further, the raw material flow rate monitoring means includes a net slurry flow rate monitoring means, a foaming agent dilution water flow rate monitoring means, and a supply air flow rate monitoring means, which correspond to the net slurry, the foaming agent dilution water, and the supply air, respectively.
Furthermore, the purified pulp flow monitoring component, the foaming agent flow monitoring component and the foaming agent dilution water flow monitoring component are all devices for monitoring real-time flow in the pipeline by adopting a liquid flowmeter, a press close switch or a Hall sensor and the like; the gas supply flow monitoring part is a device for monitoring the real-time flow in a gas pipeline by adopting a gas flowmeter, a pressure sensor or a temperature sensor and the like.
Further, the fluid power output control means includes a net slurry power output control means, a foaming agent dilution water power output control means, and an air supply power output control means, which correspond to net slurry, foaming agent dilution water, and air supply, respectively.
Further, the clean slurry power output control unit, the foaming agent dilution water power output control unit and the air supply power output control unit are respectively any one of control devices such as a servo motor controller, a stepping motor controller or a frequency converter.
A control method of the intelligent control system of the foam concrete preparation machine specifically comprises the following steps:
(1) inputting parameters: inputting technical parameters such as wet density, foam density, mixing ratio, yield and the like of the foam concrete to be produced through a human-computer interface component;
(2) calculating standard quantity: the central controller part automatically calculates the unit standard mass of each plate of raw materials such as water, cement, admixture and the like according to the input technical parameters, and simultaneously calculates the standard flow of pure slurry, foaming agent diluent and air supply in unit time;
(3) feeding and stirring: the central controller part starts the raw material feeding and stirring work through the raw material power control part, receives the real-time metering information returned by the raw material metering part, compares the real-time metering information with the calculated unit standard mass of each disc, and stops the raw material feeding through the raw material power control part after the threshold value is reached;
(4) foaming and mixing foaming: the central controller part respectively starts the supply of the clean slurry, the foaming agent diluent and the air supply through the fluid power control part, simultaneously receives the real-time flow information returned by the raw material flow monitoring part, respectively compares each real-time flow information with each calculated standard flow, and respectively issues an instruction of increasing/decreasing the supply flow to the fluid power output control part according to the difference value of the real-time flow information and the standard flow until the real-time flow information fed back by each flow monitoring part is matched with the standard flow information.
According to the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts the technical means of combining intelligent information processing, intelligent information feedback and intelligent control decision, the system automatically calculates the unit standard mass of each plate of raw materials such as water, cement, admixture and the like according to the input relevant technical parameter conditions affecting the performance quality of the product, such as the wet density, the foam density, the mixing proportion, the yield, the field environment and the like of the foam concrete to be produced, simultaneously calculates the standard flow of the components such as the clean slurry, the foaming agent diluent water, the gas supply and the like in unit time, the control system automatically controls the feeding, metering and stirring of the raw materials and dynamically adjusts the output quantity of the clean slurry, the foaming agent diluent water and the compressed gas, even if the pressure of a pipeline changes, the flow output of each component can also be adaptively adjusted to the corresponding standard flow, and the dynamic real-time adjustment is realized, ensuring the foaming density, the stable slurry density and the stable performance and quality of the final foam concrete.
2. The invention reduces the technical difficulty and the working strength of equipment operation through electronic metering, automatic control and intelligent adjustment, the automatic adjustment process can be completed within 30s, the method is more efficient, convenient, fast and accurate, the method dynamically self-adapts to the changes of the conveying distance, the pipeline pressure and the like according to technical parameters such as productivity and the like, the performance and the quality of the produced foam concrete are always kept stable and reliable, the error rate is less than 2%, and the error requirement of the foam concrete is effectively met.
3. The method is simple and convenient to operate, dynamically and accurately calculates and controls in real time, greatly reduces the debugging and construction difficulty of equipment production, ensures stable and controllable production of the foam concrete, has high working efficiency and good practical effect, and is worthy of wide popularization and application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of the structure provided by the present invention;
FIG. 2 is a schematic structural diagram of a raw material metering unit and a raw material power control unit provided by the present invention;
FIG. 3 is a schematic structural diagram of a raw material flow monitoring unit and a fluid power output control unit according to the present invention;
FIG. 4 is a table of technical parameters entered into the HMI component according to the present invention.
Wherein, 1-a human-machine interface part, 2-a central controller part, 3-a raw material metering part, 4-a raw material power control part, 5-a raw material flow monitoring part, 6-a fluid power output control part, 51-a net slurry flow monitoring part, 52-a foaming agent flow monitoring part, 53-a foaming agent dilution water flow monitoring part, 54-an air supply flow monitoring part, 61-a net slurry power output control part, 62-a foaming agent power output control part, 63-a foaming agent dilution water power output control part, and 64-an air supply power output control part.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in interactive relationship with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, a first feature being "on," "above," and "over" a second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The embodiment 1 of the invention discloses an intelligent control system of a foam concrete preparation machine, which is shown in figure 1 and comprises a human-computer interface part 1, a central controller part 2, a raw material metering part 3, a raw material power control part 4, a raw material flow monitoring part 5 and a fluid power output control part 6; wherein, the human-computer interface part 1 is connected with the central controller part 2; the central controller part 2 is in signal connection with a raw material metering part 3, a raw material power control part 4, a raw material flow monitoring part 5 and a fluid power output control part 6 respectively.
In one embodiment, the central controller component 2 is a PLC programmable logic controller; in another embodiment, the central controller component 2 is an industrial control computer; in other embodiments, on a single chip or smart control circuit. The invention inputs technical parameters such as wet density, foam density, mixing proportion and yield of foam concrete to be produced into a central controller part 2 through a human-computer interface part 1, and the central controller part 2 automatically calculates the unit standard mass of each plate of raw materials such as water, cement and admixture and the standard flow of components such as clean slurry, foaming agent diluted water and supplied air in unit time according to the input technical parameters by adopting a calculation method such as a mass-volume method through a system program.
In one embodiment, the raw material metering unit 3 is a load cell for weighing raw materials such as water, cement, and admixture; the raw material power control part 4 is an electric control switch corresponding to the water pump, the raw material feeding machine and the stirring power device respectively. As shown in fig. 2, a plurality of weighing sensors are arranged at the lower part of a storage stirring device of a container type intelligent concrete soaking station to serve as a raw material metering component 3, multi-point metering is achieved, metering is more accurate, water is supplied into the storage stirring device through a water pipe and a water pump at the upper part of the storage stirring device, a cement feeding machine, an admixture feeding machine and other raw material feeding machines are correspondingly arranged to supply raw materials such as cement and admixture into the storage stirring device, and the water pump and the feeding machines are used as a raw material power control component 4 to control respective starting and stopping operations through electric control switches which are correspondingly connected with each other.
In one embodiment, the raw materials are sequentially fed, for example, water is fed firstly, a required amount of water is delivered through a water pipe of the water supply part and the water pump, the weighing sensor measures the water supply amount in real time and feeds the measured amount back to the central controller part 2, and when the fed weighing information conforms to the standard requirement of the central controller part 2, the central controller part 2 controls an electric control switch connected with the water pump to be disconnected, so that the water pump stops working, and the water supply is stopped; then the central controller part 2 takes the total weight of the cement and the water as the standard of secondary metering, controls an electric control switch connected with a cement feeding machine to be closed, carries out cement feeding, feeds back the real-time weight to the central controller by a weighing sensor, and after the standard requirement of secondary metering is met, the central controller part 2 controls the electric control switch connected with the cement feeding machine to be disconnected, stops the cement feeding, sequentially meters and feeds the raw materials such as admixture and the like, thereby realizing the accurate metering and feeding control of the raw materials; after the feeding is finished, the central controller controls a driving motor (not shown) connected with a stirring shaft in the material storage stirring device to work, raw materials are mixed and stirred to prepare pure slurry, and the central controller is also connected with the driving motor for stirring through an electric control switch to control.
In another embodiment, the raw materials may be weighed respectively, and then the weighed raw materials are added into a storage stirring device for stirring and pulping, the stirring time and power corresponding to the amount of the raw materials can be preset according to the amount of the raw materials, and when the raw materials in the storage stirring device reach a certain amount and are stirred, the central controller controls to automatically call the corresponding stirring time and power for stirring operation.
In one embodiment, as shown in fig. 3, the raw material flow rate monitoring section 5 includes a net slurry flow rate monitoring section 51, a foaming agent flow rate monitoring section 52, a foaming agent dilution water flow rate monitoring section 53, and an air supply flow rate monitoring section 54 corresponding to net slurry, foaming agent dilution water, and air supply, respectively. Specifically, the net slurry flow monitoring component 51, the foaming agent flow monitoring component 52 and the foaming agent dilution water flow monitoring component 53 respectively and correspondingly adopt a proximity switch, a hall sensor and a liquid flowmeter to monitor the real-time flow of the corresponding net slurry, foaming agent and foaming agent dilution water in the pipeline, and feed the respectively monitored real-time flow back to the central controller component 2; the supply gas flow rate monitoring section 54 monitors the real-time flow rate of the gas in the gas pipeline using a gas flowmeter, a pressure sensor, a temperature sensor, or the like, and feeds back the gas flow rate to the central controller section 2 in real time. More specifically, the neat paste, the foamer and the foamer dilution water are all pumped by respective supply pumps, and the gas is delivered by a compressed gas generator for supply. The net slurry flow monitoring part 51, the foaming agent flow monitoring part 52, the foaming agent dilution water flow monitoring part 53 and the air supply flow monitoring part 54 are respectively and correspondingly arranged on the corresponding pipelines of the net slurry, the foaming agent dilution water and the air supply to monitor the respective real-time flow in real time and feed back the monitored real-time flow information to the central control part 2.
In one embodiment, the fluid power output control means 6 comprises a net slurry power output control means 61, a foamer power output control means 62, a foamer dilution water power output control means 63 and a supplied air power output control means 64 corresponding to net slurry, foamer dilution water, supplied air, respectively. Specifically, the clean slurry power output control part 61, the foaming agent power output control part 62, the foaming agent diluted water power output control part 63 and the gas supply power output control part 64 all adopt frequency converters, and power motors of each supply pump and each compressed gas generator are respectively controlled through the frequency converters; in another embodiment a servo motor controller is used, in other embodiments a stepper motor controller is used. Wherein, the net slurry frequency converter regulates and controls the real-time flow rate of the net slurry through the net slurry supply pump by receiving the instruction of the central controller component 2; the foaming agent frequency converter regulates and controls the real-time flow of the foaming agent through a foaming agent supply pump by receiving an instruction of the central controller component 2; the foam agent dilution water frequency converter regulates and controls the real-time flow of the foam agent dilution water through a foam agent dilution water supply pump by receiving the instruction of the central controller part 2; the gas supply frequency converter regulates and controls the real-time flow of gas through the compressed gas generator by receiving the instruction of the central controller part 2.
The central controller part 2 receives the fed back real-time flow information, compares the real-time flow information with the standard flow, and respectively issues instructions for increasing/decreasing the supply flow to the net slurry, the foaming agent dilution water and the air supply power control part according to the difference value between the real-time flow information and the standard flow, so that the real-time flow information fed back by each flow monitoring part is matched with the standard flow information to be consistent or the difference value is within an allowable error range.
In one embodiment, the system further comprises a memory unit, which can memorize and store the working frequency of the corresponding fluid power control component when the real-time flow rate is stable during the production of each fluid, so that when the system is restarted or meets the same technical parameters, the directly memorized working frequency controls the flow rate of each fluid to be close to the standard flow rate at the beginning, and the time for readjusting the real-time flow rate and the standard flow rate by the system is reduced and avoided.
The embodiment of the invention also provides a control method of the intelligent control system of the foam concrete preparation machine, which comprises the following steps:
(1) inputting parameters: as shown in fig. 4, technical parameters such as wet density, foam density, mixing ratio and yield of the foam concrete to be produced are input through the human-computer interface part 1;
(2) calculating standard quantity: the central controller part 2 automatically calculates the unit standard mass of each plate of raw materials such as water, cement, admixture and the like according to the input technical parameters, and simultaneously calculates the standard flow of pure slurry, foaming agent diluent and air supply in unit time;
(3) feeding and stirring: the central controller part 2 starts the raw material feeding and stirring work through the raw material power control part 4, receives the real-time metering information returned by the raw material metering part 3, compares the real-time metering information with the unit standard mass of each disc calculated in the step (2), and stops the raw material feeding through the raw material power control part 4 after reaching a valve value;
(4) foaming and mixing foaming: the central controller part 2 respectively starts the supply of the slurry purification, the foaming agent dilution water and the air supply through the fluid power control part, simultaneously receives the real-time flow information returned by the raw material flow monitoring part 5, respectively compares each real-time flow information with each standard flow calculated in the step (2), and respectively issues an instruction of increasing/decreasing the supply flow to the fluid power output control part 6 according to the difference value of the real-time flow information and the standard flow until the real-time flow information fed back by each flow monitoring part is matched with the standard flow information.
In conclusion, the invention effectively ensures the stable and accurate mixing ratio of the raw materials in the clean slurry by accurately weighing the raw materials, meanwhile, the foam density is stable and controllable through dynamic stable control of the foaming agent, the diluting water of the foaming agent and the gas flow, a foam group with stable density is formed, and then the foam is mixed with the stable net slurry output flow, so that the mixed material, namely the wet density of the foam concrete, is stable and controllable, even if the pipeline pressure changes, such as the pipeline pressure is increased, the output flow of each component is increased due to the resistance caused by the pipeline pressure, and the output flow is reduced, at this time, the central controller part 2 receives the real-time flow reduction transmitted back by each flow monitoring part, immediately sends an instruction through the fluid power control part, controls and increases the flow of the fluid, enables the real-time flow of each fluid to be close to the standard flow, and enables the real-time flow of each fluid to be fast and stable in a matching range. On the contrary, when the pipeline pressure is reduced, the real-time flow rate is increased, the central controller part 2 sends out an instruction for reducing the real-time flow rate, so that the implementation flow rate quickly tends to the standard flow rate, the self-adaptive intelligent control and adjustment are realized, the efficiency, the rapidness and the accuracy are realized, and the stable and reliable performance and quality of the produced foam concrete are always kept.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Rather, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The intelligent control system of the foam concrete preparation machine is characterized by comprising a human-computer interface part, a central controller part, a raw material metering part, a raw material power control part, a raw material flow monitoring part and a fluid power output control part;
the human-computer interface part is connected with the central controller part;
the central controller part is respectively connected with the raw material metering part, the raw material power control part, the raw material flow monitoring part and the fluid power output control part in a signal mode.
2. The intelligent control system of claim 1, wherein the central controller component is any one of a PLC, an industrial control computer, a single chip microcomputer or an intelligent control circuit.
3. The intelligent control system of claim 1, wherein the raw material metering component is a load cell weighing water, cement and admixtures.
4. The intelligent control system for the foam concrete preparation machine according to claim 1, wherein the raw material power control part is an electric control switch corresponding to the water pump and the raw material feeder respectively.
5. The intelligent control system of claim 1, wherein the raw material flow monitoring component comprises a net slurry flow monitoring component, a foamer dilution water flow monitoring component and a supply air flow monitoring component.
6. The intelligent control system for foam concrete preparation machine of claim 5, wherein said net slurry flow monitoring component, said foamer flow monitoring component and said foamer dilution water flow monitoring component are all devices that use liquid flow meters, proximity switches or Hall sensors to monitor the flow in the pipeline in real time.
7. The intelligent control system for the foam concrete preparation machine according to claim 5, wherein the gas supply flow monitoring component is a device for monitoring the real-time flow in the gas pipeline by using a gas flowmeter, a pressure sensor or a temperature sensor.
8. The intelligent control system for a foam concrete preparation machine of claim 1, wherein said fluid power output control means comprises a net slurry power output control means, a foamer dilution water power output control means and a gas supply power output control means.
9. The intelligent control system for a foam concrete preparation machine according to claim 8, wherein said net slurry power take-off control means, said foamer dilution water power take-off control means and said air supply power take-off control means are any one of a servo motor controller, a stepper motor controller or a frequency converter, respectively.
10. The control method of the intelligent control system of the foam concrete preparation machine according to any one of claims 1 to 9, characterized by comprising the following steps:
(1) inputting parameters: inputting the wet density, the foam density, the mixing ratio and the yield of the foam concrete to be produced through a human-computer interface component;
(2) calculating standard quantity: the central controller part automatically calculates the unit standard mass of each plate of water, cement and admixture according to the input technical parameters, and simultaneously calculates the standard flow of the pure slurry, the foaming agent dilution water and the air supply in unit time;
(3) feeding and stirring: the central controller part starts the raw material feeding and stirring work through the raw material power control part, receives the real-time metering information returned by the raw material metering part, compares the real-time metering information with the calculated unit standard mass of each disc, and stops the raw material feeding through the raw material power control part after the threshold value is reached;
(4) foaming and mixing foaming: the central controller part respectively starts the supply of the clean slurry, the foaming agent diluent and the air supply through the fluid power control part, simultaneously receives the real-time flow information returned by the raw material flow monitoring part, respectively compares each real-time flow information with each calculated standard flow, and respectively issues an instruction of increasing/decreasing the supply flow to the fluid power output control part according to the difference value of the real-time flow information and the standard flow until the real-time flow information fed back by each flow monitoring part is matched with the standard flow information.
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| CN115685950A (en) * | 2022-12-31 | 2023-02-03 | 常州市聚凝电气自动化设备有限公司 | Metering and batching mixed pouring control method and system based on industrial Ethernet |
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| CN115685950B (en) * | 2022-12-31 | 2023-03-10 | 常州市聚凝电气自动化设备有限公司 | Metering and batching mixed pouring control method and system based on industrial Ethernet |
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