CN111452220A - Environment-friendly fine-quality sand making building control system - Google Patents
Environment-friendly fine-quality sand making building control system Download PDFInfo
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- CN111452220A CN111452220A CN202010449978.1A CN202010449978A CN111452220A CN 111452220 A CN111452220 A CN 111452220A CN 202010449978 A CN202010449978 A CN 202010449978A CN 111452220 A CN111452220 A CN 111452220A
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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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Abstract
The invention discloses an environment-friendly type fine sand-making building control system, which is used for production control of sand-making lines and relates to the technical field of automatic control of sand-making production equipment.
Description
Technical Field
The invention discloses an environment-friendly type fine sand making building control system, which is used for production control of a sand making line and relates to the technical field of automatic control of sand making production equipment.
Background
With the continuous development of economy in China, various large-scale building projects are gradually increased, particularly the rapid development of high-speed rails, and the requirements on the performance of concrete are higher and higher due to the continuous emergence of ultra-high-rise buildings and large-span bridges; the sandstone is used as the raw material with the highest proportion in the concrete, and the performance of the sandstone directly influences the performance of the high-performance concrete; in the existing major projects, almost all important structures require high-performance concrete, the performance of the high-performance concrete can be ensured only by adopting natural sand, the natural sand serving as a non-renewable resource is exhausted, the exploitation of the natural sand causes serious damage to the environment, a series of environmental protection problems and social problems are brought, and the preparation of the concrete by adopting high-quality fine sand instead of the natural sand becomes an important trend of social development.
The sand making performance at the present stage is better than that of a production process and a method of a floor type sand making station, the sand making processes and used equipment of various manufacturers and the arrangement thereof are different, and the most prominent defects of the synthesis of the production process and the equipment are poor performance of powder selecting equipment and not ideal dust control; after the production line is put into operation, the quality and the yield can not meet the requirements of engineering construction, and the harmfulness is very serious.
Disclosure of Invention
The invention aims to: the environment-friendly control system for the fine sand-making building is provided, the operation of production equipment is intelligently controlled, and the problem that the powder content in sand exceeds the standard is solved.
The technical scheme includes that the environment-friendly type control system for the competitive sand building comprises a PC upper computer, a P L C, an intermediate relay, a transmitter, a frequency converter, main equipment, a contactor/electromagnetic valve and a control panel, wherein the intermediate relay is sequentially electrically connected with the contactor/electromagnetic valve and the main equipment in a closed circuit mode, the transmitter is electrically connected with the frequency converter, the P L C is respectively electrically connected with the intermediate relay, the transmitter and the control panel and is wirelessly or wiredly connected with the PC upper computer through an Ethernet protocol, the running state of the main equipment is controlled through the P L C, and the running speed is adjusted through adjustment of the frequency converter.
The working principle of the invention is that the invention consists of P L C and an upper computer monitoring program, P L C is responsible for main control logic, P L C controls the running state of equipment through an intermediate relay and a contactor/electromagnetic valve, the intermediate relay feeds back the equipment state to P L C, P L C knows the running state of the main equipment through the analog current amount fed back by a transmitter, and then P L C sends an instruction to the transmitter, so that a frequency converter changes the current amount, thereby changing the feeding speed, and keeping the feeding in an optimal state, the upper computer mainly has monitoring and partial control functions, the P L C and the upper computer exchange data through Ethernet, when the equipment is produced in an automatic mode, if the equipment directly involved in production such as a belt conveyor, a shaping machine or a vibrating screen has overload/trip faults, the system automatically stops production, and alarms a lamp and a system alarm, the fault is cleared, the production can be manually reset to start again after the fault is cleared, if the equipment which is produced by an air compressor, a dust removal system and the like fails, the equipment can be manually started to continue to be manually stopped after the fault is cleared, and the production of the equipment can be manually stopped.
The monitoring program of the PC upper computer is installed in the PC upper computer and comprises a real-time current display module, a main interface display module and a technical parameter modification module, wherein the main interface display module consists of a production monitoring picture, a control parameter picture, an alarm information picture, signal detection and system parameters; the technical parameter modification module provides a production parameter modification interface, so that the production is conveniently monitored.
The production monitoring picture is provided with a discharging mode and a host mode, and in the starting or stopping process of the discharging mode, the system can start/stop a corresponding finished product discharging belt or a corresponding elevator according to different discharging modes; the host mode: according to the selection of a user, the system starts and stops corresponding equipment in the starting/stopping process; the functions on the production monitoring picture are effective in a stop state, and if a user needs to switch in production, corresponding equipment can be manually started and stopped on a signal detection interface; the production monitoring picture is used for automatically starting and stopping the system and monitoring the production state, and the running state of each device is displayed by different dynamic pictures or color changes; and a production parameter group selection function is also integrated, and the system can automatically adjust the working state according to different parameter groups set by a user.
The control parameter picture is used for setting the interval time when the equipment is started or stopped, and each interval time of the system is 300-600 seconds; the reasonable interval time when the equipment is started can avoid power grid fluctuation caused by voltage drop, reduce the damage probability of voltage fluctuation to a field sensitive sensor and ensure the safe and stable operation of the equipment; the material circulation condition is considered in the setting of the equipment stop time interval, so that the influence on the service life of the equipment caused by the loading starting of the equipment when the equipment is started next time is avoided, and particularly, the equipment such as a hoister, a crusher, a vibrating screen and the like cannot be started in a heavy load manner; the starting early warning time is not too short, sufficient reaction time is provided for field maintainers, an operator is informed, a maintenance board is hung, a key switch is pulled out during equipment maintenance, the operator is informed to the maintainers before starting the equipment, and non-professional personnel are prohibited to start and stop the equipment; reasonable full material level signal time delay can avoid powder or sand tank to explode the storehouse, gets rid of the signal interference that production environment arouses.
And the alarm information picture is used for displaying corresponding abnormal alarm information.
The signal detection is used for emergently switching the discharging direction and stopping the designated equipment in an emergency.
The system parameters comprise analog quantity setting, frequency of a frequency converter, a draught fan regulating and controlling plate, an air blower regulating and controlling plate, a wind control box regulating and controlling plate, parameter group setting and self-regulation parameters, the analog quantity setting is a parameter for regulating the virtual ammeter, after the parameter is modified, a storage and exit program is clicked to reenter, so that the modification is successful, and the parameter cannot be modified in the production process; the frequency of the frequency converter is used when the frequency is adjusted during manual production or maintenance and repair of equipment, and the frequency does not need to be adjusted in the automatic production process; the induced draft fan regulating and controlling plate, the air blower regulating and controlling plate and the wind control box regulating and controlling plate are used for manually testing the electric actuator during equipment overhaul and maintenance; no adjustment is needed in the automatic production process;
parameter set setting: the parameter set is core data in the automatic production process, has direct relation with the process quality of the produced sand, is generally set by professionals of our company on site through experimental data, and is not required to be modified by general users at the later stage, if the users have special requirements, the parameters can be modified under the guidance of the professionals of our company;
referring to other control areas at the lower right corner of fig. 7, parameters are automatically adjusted in an automatic production process, a feeding belt and a belt automatically adjust frequency according to set low target current, so that the system can run more stably and efficiently, the frequency is set as an initial frequency by using parameter set when the system is started, then the frequency is gradually adjusted until the target current is reached, the adjustment efficiency, the stability and a basic coefficient have a direct relation, a general company can set a reliable parameter, a pulse dust removal chamber works, and a user can automatically adjust according to own requirements.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the invention adopts the PC upper computer and the P L C to control and match the electric actuator and the frequency converter, can realize the adjustment of the sand powder content, can be operated during the production, is simple and convenient, collects the current of the host machine, adjusts the feeding amount according to the current change of the host machine, does not have single feeding amount, solves the problems of single feeding amount, easy blockage of more feeding amount and less feeding amount, and greatly improves the yield.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic flow diagram of the principle of the present invention;
FIG. 2 is a schematic diagram of the functional flow of the PC upper computer program of the present invention;
FIG. 3 is a schematic diagram of the host interface for operating the PC host computer program according to the present invention;
FIG. 4 is a schematic diagram of the operation interface for setting parameters by the PC upper computer program;
FIG. 5 is a schematic diagram of the PC upper computer program switching value input detection interface;
FIG. 6 is a schematic diagram of the switching value output detection interface of the PC upper computer program according to the present invention;
FIG. 7 is a schematic diagram of the parameter interface of the PC upper computer program system.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-7, an environment-friendly control system for a fine sand building comprises a PC upper computer, a P L C, an intermediate relay, a transmitter, a frequency converter, main equipment, a contactor/electromagnetic valve and a control panel, wherein the intermediate relay is sequentially electrically connected with the contactor/electromagnetic valve and the main equipment in a closed circuit mode, the transmitter is electrically connected with the frequency converter, the P L C is respectively electrically connected with the intermediate relay, the transmitter and the control panel and is wirelessly or wiredly connected with the PC upper computer through an ethernet protocol, the operation state of the main equipment is controlled through the P L C, and the operation speed is adjusted through adjusting the frequency converter.
The working principle of the invention is that the invention consists of P L C and an upper computer monitoring program, P L C is responsible for main control logic, P L C controls the running state of equipment through an intermediate relay and a contactor/electromagnetic valve, the intermediate relay feeds back the equipment state to P L C, P L C knows the running state of the main equipment through the analog current amount fed back by a transmitter, and then P L C sends an instruction to the transmitter, so that a frequency converter changes the current amount, thereby changing the feeding speed, and keeping the feeding in an optimal state, the upper computer mainly has monitoring and partial control functions, the P L C and the upper computer exchange data through Ethernet, when the equipment is produced in an automatic mode, if the equipment directly involved in production such as a belt conveyor, a shaping machine or a vibrating screen has overload/trip faults, the system automatically stops production, and alarms a lamp and a system alarm, the fault is cleared, the production can be manually reset to start again after the fault is cleared, if the equipment which is produced by an air compressor, a dust removal system and the like fails, the equipment can be manually started to continue to be manually stopped after the fault is cleared, and the production of the equipment can be manually stopped.
Example 2
On the basis of the embodiment 1, a PC upper computer monitoring program is installed in the PC upper computer and comprises a real-time current display module, a main interface display module and a technical parameter modification module, wherein the main interface display module consists of a production monitoring picture, a control parameter picture, an alarm information picture, signal detection and system parameters, the real-time current display module provides real-time current display for main equipment, an operator can pay attention to current change at the position at any moment, the feeding flow is timely adjusted according to the current condition, and equipment faults caused by motor overload are prevented; the technical parameter modification module provides a production parameter modification interface, so that the production is conveniently monitored.
Example 3
On the basis of the embodiment 2, the production monitoring picture is provided with a discharging mode and a host mode, and in the starting or stopping process of the discharging mode, a system can start/stop a corresponding finished product discharging belt or a corresponding elevator according to different discharging modes; the host mode: according to the selection of a user, the system starts and stops corresponding equipment in the starting/stopping process; the functions on the production monitoring picture are effective in a stop state, and if a user needs to switch in production, corresponding equipment can be manually started and stopped on a signal detection interface; the production monitoring picture is used for automatically starting and stopping the system and monitoring the production state, and the running state of each device is displayed by different dynamic pictures or color changes; and a production parameter group selection function is also integrated, and the system can automatically adjust the working state according to different parameter groups set by a user.
Example 4
On the basis of the embodiment 2, the control parameter picture is used for setting the interval time when the equipment is started or stopped, and each interval time of the system is 300-600 seconds; the reasonable interval time when the equipment is started can avoid power grid fluctuation caused by voltage drop, reduce the damage probability of voltage fluctuation to a field sensitive sensor and ensure the safe and stable operation of the equipment; the material circulation condition is considered in the setting of the equipment stop time interval, so that the influence on the service life of the equipment caused by the loading starting of the equipment when the equipment is started next time is avoided, and particularly, the equipment such as a hoister, a crusher, a vibrating screen and the like cannot be started in a heavy load manner; the starting early warning time is not too short, sufficient reaction time is provided for field maintainers, an operator is informed, a maintenance board is hung, a key switch is pulled out during equipment maintenance, the operator is informed to the maintainers before starting the equipment, and non-professional personnel are prohibited to start and stop the equipment; reasonable full material level signal time delay can avoid powder or sand tank to explode the storehouse, gets rid of the signal interference that production environment arouses.
Example 5
On the basis of the embodiment 2, the alarm information picture is used for displaying alarm information corresponding to abnormality.
Example 6
On the basis of example 2, the signal detection is used for emergency switching of the discharge direction and for stopping the specific device in case of emergency.
Example 7
On the basis of the embodiment 2, the system parameters comprise analog quantity setting, frequency converter frequency, an induced draft fan control board, an air blower control board, a wind control box control board, parameter group setting and self-adjusting parameters, the analog quantity setting is a parameter for adjusting a virtual ammeter, after the parameter is modified, a click saving exit program enters again, so that the modification is successful, and the parameter cannot be modified in the production process; the frequency of the frequency converter is used when the frequency is adjusted during manual production or maintenance and repair of equipment, and the frequency does not need to be adjusted in the automatic production process; the induced draft fan regulating and controlling plate, the air blower regulating and controlling plate and the wind control box regulating and controlling plate are used for manually testing the electric actuator during equipment overhaul and maintenance; no adjustment is needed in the automatic production process;
parameter set setting:
| fineness of fineness Modulus of elasticity | 1# blast Opening degree of machine | 1# wind control Opening degree of the tank | 1# blast Machine frequency | 2# blast Opening degree of machine | 2# wind control Opening degree of the tank | 2# blast Machine frequency | Draught fan Frequency of | Belt conveyor Frequency of | 1# Main machine elevator Front current | 2# host computer elevator Front current | Belt return Coefficient of material | Belt protector Frequency guard |
| 2.0 | 90 | 90 | 30 | 90 | 90 | 40 | 40 | 50 | 200 | 100 | 0.87 | 35 |
| 2.2 | 50 | 50 | 25 | 50 | 50 | 25 | 25 | 25 | 100 | 100 | 0 | 35 |
| 2.4 | 50 | 50 | 25 | 50 | 50 | 25 | 25 | 25 | 100 | 100 | 0.35 | 35 |
| 2.6 | 50 | 50 | 25 | 50 | 50 | 25 | 25 | 25 | 100 | 100 | 0.35 | 35 |
| 2.8 | 50 | 50 | 25 | 50 | 50 | 25 | 25 | 25 | 100 | 100 | 0.35 | 35 |
The parameter set is core data in the automatic production process, has direct relation with the process quality of the produced sand, is generally set by professionals of our company on site through experimental data, and is not required to be modified by general users at the later stage, if the users have special requirements, the parameters can be modified under the guidance of the professionals of our company;
referring to other control areas at the lower right corner of fig. 7, parameters are automatically adjusted in an automatic production process, a feeding belt and a belt automatically adjust frequency according to set low target current, so that the system can run more stably and efficiently, the frequency is set as an initial frequency by using parameter set when the system is started, then the frequency is gradually adjusted until the target current is reached, the adjustment efficiency, the stability and a basic coefficient have a direct relation, a general company can set a reliable parameter, a pulse dust removal chamber works, and a user can automatically adjust according to own requirements.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (7)
1. An environment-friendly type fine sand building control system comprises a PC upper computer, a P L C, an intermediate relay, a transmitter, a frequency converter, main equipment, a contactor/electromagnetic valve and a control panel, and is characterized in that the intermediate relay is electrically connected with the contactor/electromagnetic valve and the main equipment in a closed circuit mode in sequence, the transmitter is electrically connected with the frequency converter, the P L C is electrically connected with the intermediate relay, the transmitter and the control panel respectively and is in wireless or wired connection with the PC upper computer through an Ethernet protocol, the running state of the main equipment is controlled through the P L C, and the running speed is adjusted through adjusting the frequency converter.
2. The environment-friendly fine sand building control system according to claim 1, wherein a PC upper computer monitoring program is installed in the PC upper computer, the PC upper computer monitoring program comprises a real-time current display module, a main interface display module and a technical parameter modification module, wherein the main interface display module consists of a production monitoring picture, a control parameter picture, an alarm information picture, signal detection and system parameters, the real-time current display module provides real-time current display of main equipment, an operator can pay attention to current change at the position at any moment, and feed flow is timely adjusted according to current conditions to prevent equipment faults caused by motor overload; the technical parameter modification module provides a production parameter modification interface, so that the production is conveniently monitored.
3. The environment-friendly fine-quality sand building control system according to claim 2, wherein the production monitoring picture is provided with a discharging mode and a host mode, and in the process of starting or stopping the discharging mode, the system can start/stop a corresponding finished product discharging belt or a corresponding hoister according to different discharging modes; the host mode: according to the selection of a user, the system starts and stops corresponding equipment in the starting/stopping process; the functions on the production monitoring picture are effective in a stop state, and if a user needs to switch in production, corresponding equipment can be manually started and stopped on a signal detection interface.
4. The system as claimed in claim 2, wherein the control parameter picture is used to set the interval time when the equipment is started or stopped, and each interval time of the system is 300-600 seconds.
5. The environment-friendly boutique-made sand building control system of claim 2, wherein the alarm information picture is used for displaying corresponding abnormal alarm information.
6. The system as claimed in claim 2, wherein the signal detection is used to switch the discharging direction in case of emergency and stop the designated equipment in case of emergency.
7. The environment-friendly control system for a sand building made of competitive products as claimed in claim 2, wherein the system parameters include analog quantity setting, frequency converter frequency, draught fan regulating plate, blower regulating plate, wind control box regulating plate, parameter group setting, and self-adjusting parameters, the analog quantity setting is a parameter for adjusting the virtual ammeter, the frequency converter frequency is used when adjusting frequency during manual production or maintenance of equipment, and the draught fan regulating plate, the blower regulating plate, and the wind control box regulating plate are used when manually testing an electric actuator during equipment maintenance.
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| CN113696328A (en) * | 2021-08-26 | 2021-11-26 | 三一重型装备有限公司 | Control method and control device for adjusting feeding speed of sand making building and sand making building |
| CN116273425A (en) * | 2023-03-21 | 2023-06-23 | 郑州水工机械有限公司 | Control method and control system of sand making building |
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