CN108483962B - Intelligent control system and method for aggregate production - Google Patents

Intelligent control system and method for aggregate production Download PDF

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Publication number
CN108483962B
CN108483962B CN201810299637.3A CN201810299637A CN108483962B CN 108483962 B CN108483962 B CN 108483962B CN 201810299637 A CN201810299637 A CN 201810299637A CN 108483962 B CN108483962 B CN 108483962B
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control system
aggregate
sensor
screening
ball mill
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CN108483962A (en
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张卫强
徐红梅
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Luoyang Dahua Intelligent Technology Co ltd
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Luoyang Dahua Intelligent Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/1805—Monitoring devices for tumbling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/04—Heat treatment

Abstract

An intelligent control system and method for aggregate production comprises a grinding mechanism, a metering mechanism, a forming and sintering mechanism, a screening mechanism and a control system, wherein the grinding mechanism comprises a lifting bin, a roller press and a ball mill, the metering mechanism comprises a conical feeding pipe, a storage box, a material guide pipe and a belt scale, a flow distribution plate is arranged in the material guide pipe, a control valve is arranged at the lower end of the material guide pipe, a feeding port of the ball mill is connected with a discharging end of the belt scale, a discharging port of the ball mill is communicated with the forming and sintering mechanism, the forming and sintering mechanism comprises a granulator, a drying box and a sintering furnace, the screening mechanism comprises a vibrating screening box and a feeding hopper, a screening plate is; the processor of the control system receives signals sent by the temperature sensors I and II, the weighing sensors I and II and the speed measuring sensor on the single-machine equipment through the communication module, processes the signals and sends instructions. The invention realizes the automation of the production process by combining single-machine equipment and intelligent control, and effectively improves the fault processing capacity and the production efficiency.

Description

Intelligent control system and method for aggregate production
Technical Field
The invention relates to the field of aggregate production, in particular to an intelligent control system and method for aggregate production.
Background
The aggregate is used as an important material for infrastructure and urban construction, and bears great responsibility in novel urbanization construction in China, the aggregate is mainly prepared from artificial sand, river sand and sea sand, the river sand and the sea sand are ideal in modulus and gradation, but are used for protecting limited river sand resources and avoiding the problems of excessive mining and excessive mining influencing ecology, river flood banks, shipping and bridge use safety, and the current concrete problem is caused to a great extent by the fact that the quality of the gravel is not critical, such as poor coarse aggregate grain shape, poor gradation, large porosity, more needle-shaped grains, high stone powder content and the like, and the poor gravel quality is a main cause of the problems of high water consumption of concrete, large using amount of cementing materials, poor durability and the like. The quality assurance of the concrete not only needs to improve the level from the production equipment, but also needs to improve the quality control of the concrete, the artificial aggregate can replace the natural aggregate to prepare the artificial aggregates with different particle sizes, the porosity is reduced through reasonable aggregate gradation, the consumption of admixtures such as cement and clay is reduced, and the waste of river sand resources can be reduced.
At present, an aggregate production line is taken as a labor-intensive traditional industry, monitoring of production operation conditions mainly depends on manual supervision and data recording of field workers, various electrical parameters, yield, switches and other data of key equipment are lacked, it is difficult to timely judge under which working condition the production line is in, the working conditions cannot be fed back to guide the workers to timely adjust, if grinding, batching and molding sintering of aggregates are all guided by manual observation, the automatic adjustment capability in the production process of the artificial aggregates is not strong, the intelligence and continuity are lacked, and the production efficiency of the aggregates is reduced.
Disclosure of Invention
In order to solve the technical problems, the invention provides an intelligent control system and method for aggregate production, which realize automatic adjustment control of a production process by combining single-machine equipment and intelligent control, operate at an optimal load, improve the yield, reduce shutdown maintenance and effectively improve the fault handling capacity and the production efficiency.
The technical scheme adopted by the invention is as follows: an intelligent control system for aggregate production comprises a plurality of single-machine devices and a control system, wherein the single-machine devices comprise a grinding mechanism, a metering mechanism, a forming and sintering mechanism and a screening mechanism, the grinding mechanism comprises a plurality of raw material pretreatment devices and a ball mill, each raw material pretreatment device comprises a lifting bin and a roller press, different raw materials are crushed by the raw material pretreatment devices and then enter the metering mechanism, and a feed opening of the roller press is provided with a temperature sensor I for measuring the temperature of the materials and preventing the roller press from being overheated;
the metering mechanism and the raw material pretreatment device are provided with a plurality of sets in a matched manner and are respectively arranged below each roller press, each set of metering mechanism comprises a feeding device and a weighing device, the feeding device comprises a conical feeding pipe, a material storage box and a material guide pipe, a plurality of flow distribution plates with weighing sensors I mounted at the bottoms are arranged in the material guide pipe, the lower end of the material guide pipe is provided with a control valve, and the flow distribution plates are sequentially arranged on the inner wall of the material guide pipe through a rotating shaft; the weighing device comprises a belt scale, a weighing sensor II and a speed measuring sensor, wherein the weighing sensor II and the speed measuring sensor are arranged below the belt scale;
the feeding port of the ball mill is respectively connected with the discharging end of the belt scale through a discharging pipe, the discharging port of the ball mill is communicated with the forming mechanism, a temperature sensor II for measuring the discharging temperature and preventing the ball mill from overheating is arranged at the discharging port, the forming sintering mechanism comprises a granulator, a drying box and a sintering furnace, and the material ball-milled by the ball mill enters the forming sintering mechanism from the discharging port;
the screening mechanism comprises a vibration screening box for screening the size of the sintered aggregate, a feed hopper is arranged above the vibration screening box, screening plates with different apertures are arranged in the vibration screening box, the screening plates divide the vibration screening box into a plurality of independent cavities, a grading discharge port is arranged on one side of each cavity, a telescopic hydraulic column is arranged below the vibration screening box, and the hydraulic column is electrically connected with a control system;
the control system comprises a communication module, a program setting module and a processor which are connected with each other, wherein the processor receives signals sent by a temperature sensor I, a weighing sensor II, a speed measuring sensor and a temperature sensor II which are arranged on the single-machine equipment through the communication module, and processes and sends instructions to the received signals.
Furthermore, a plurality of spiral material distributing plates with different lengths are uniformly arranged on the inner wall of the storage box, and materials sliding down on the spiral material distributing plate above fall on the spiral material distributing plate below.
Furthermore, the flow distribution plate is evenly provided with holes, and the diameters of the holes are sequentially increased from top to bottom on the inner wall of the material guide pipe according to the flow distribution plate.
Furthermore, each single machine device is provided with a motor.
Furthermore, an angle measuring instrument and a rotating speed sensor are arranged on the granulator, the angle measuring instrument and the rotating speed sensor transmit signals to a processor through a communication module, and the processor regulates and controls the angle and the rotating speed of the granulator according to a program set by a program setting module.
Furthermore, a grading material receiving box is arranged below the grading discharge hole.
Furthermore, an alarm module is arranged on the control system.
The use method of the intelligent control system for aggregate production comprises the following steps:
(1) firstly, setting the highest temperature of a temperature sensor I and a temperature sensor II, the transmission speed range of a speed measuring sensor, the weight threshold of a weighing sensor I, the rotation range of an angle measuring instrument and the rotation speed range of a rotating speed sensor by a program setting module of a control system, and then setting the preset weight of the weighing sensor II according to the mixing ratio of raw materials;
(2) various raw materials required for producing the aggregate respectively enter respective raw material pretreatment devices, are conveyed to a roller press through a lifting bin, are primarily crushed by the roller press and are respectively conveyed to a metering mechanism from a feed opening of the roller press; when the temperature of a feeding hole of the roller press exceeds a set high temperature, a signal is sent to the alarm module and the processor by the temperature sensor I through the communication module, the alarm module gives out an alarm, and the processor adjusts the running state of the roller press;
(3) the crushed raw materials respectively enter respective metering mechanisms, are fed into a storage box through a conical feeding pipe, are sequentially dispersed to a material guide pipe through a spiral material distribution plate in the storage box, are conveyed to a belt weigher through the material guide pipe, reach the weight required by the proportion after being regulated and controlled by a weighing sensor II, a control valve at the lower end of the material guide pipe is closed, all the raw materials are conveyed to a ball mill through the discharge end of the belt weigher, and the transmission speed of the belt weigher can be adjusted according to the feeding speed in the conveying process;
(4) the raw materials are uniformly mixed in the ball mill, when the temperature of a discharge port of the ball mill and the temperature of a feed port of the roller press exceed set high temperatures, signals are sent to an alarm module and a processor by a temperature sensor I and a temperature sensor II through a communication module, the alarm module gives out an alarm, and the processor adjusts the running states of the roller press and the ball mill;
(5) regulating and controlling the angle and the rotating speed of the granulator through a program set by a program setting module, so that the ground raw materials are molded in the granulator, and the molded blanks are dried and sintered to prepare aggregates;
(6) the sintered aggregate is sent into the vibration screening box to be screened for the particle size, the aggregate with small particle size sequentially passes through the screening plate and falls on the bottom of the vibration screening box, the aggregate with large particle size sequentially falls in a cavity formed by the screening plate and the vibration screening box, after screening is finished, a timing program is set in a program setting module of a control system, a telescopic hydraulic column is started by timing control, the vibration screening box is inclined towards the grading discharge port, the aggregates with different particle sizes after screening are discharged from respective grading discharge ports, and production of the aggregate is finished.
The invention has the beneficial effects that:
the invention provides an intelligent control system for aggregate production, which comprises a plurality of single-machine devices and a control system for production, wherein the single-machine devices and the control system are combined to realize automatic adjustment and control in the production process; the metering mechanism comprises a feeding device and a weighing device, the feeding device comprises a conical feeding pipe, a material storage box and a material guide pipe, a plurality of flow distribution plates are arranged in the material guide pipe, when raw materials fall from the material guide pipe, the raw materials firstly fall on the flow distribution plates and leak from holes to play a role of buffering and distributing, when the weight of the flow distribution plates is larger than a threshold value set by the weighing sensor I, a control system controls a rotating shaft to rotate by 90 degrees to dump the raw materials on the flow distribution plates, the falling flow is increased, accumulation and flocculation in the material guide pipe are avoided, the feeding device of the metering mechanism does not need workers to beat pipelines frequently, and the metering efficiency is improved; the weighing mechanism comprises a belt scale, a weighing sensor II and a speed measuring sensor, the transmission speed range of the speed measuring sensor and the preset weight of the weighing sensor II can be set in the control system, when the material on the belt scale reaches the set value of the weighing sensor II, the control system can close a control valve at the lower end of the material guide pipe, adjust the conveying speed of the belt and convey the metered material to the ball mill for mixing and grinding; the aggregate does not need manual observation and guidance from grinding, batching and molding sintering, and a control system is used for regulating and controlling devices such as a temperature sensor I, a temperature sensor II, a speed measuring sensor, a weighing sensor I, a weighing sensor II, an angle measuring instrument and the like which are arranged on a single machine device, so that the autonomous adjusting capacity in the production process of the artificial aggregate is improved, the error of manual intervention is reduced, the intelligence and the continuity are enhanced, the operation is carried out at the optimal load, the yield is improved, the shutdown maintenance is reduced, and the fault handling capacity and the production efficiency are effectively improved.
Drawings
FIG. 1 is a flow control diagram of an aggregate production intelligent control system;
FIG. 2 is a schematic structural diagram of an aggregate production intelligent control system;
fig. 3 is a schematic structural diagram of a selection mechanism;
fig. 4 is a schematic view showing the structure of a guide tube of the feeding mechanism;
reference numerals: 1. grinding mechanism, 2, metering mechanism, 3, molding sintering machine, 4, screening mechanism, 5, raw material pretreatment device, 6, feeding device, 601, tapered feeding pipe, 602, storage box, 603, guide pipe, 604, flow distribution plate, 605, rotating shaft, 606, control valve 7, weighing device, 701, belt scale, 8, ball mill, 801, feeding port, 802, discharge port, 9, vibration screening box, 901, feeding hopper, 902, screening plate, 903, cavity, 904, grading discharge port, 905, hydraulic column, 10, spiral material distribution plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions will be clearly and completely described below with reference to the embodiments of the present invention. The scheme of the invention is described in detail below with reference to specific examples:
an intelligent control system for aggregate production comprises a plurality of single-machine equipment and a control system for production, wherein each single-machine equipment is provided with a motor, and the control system is provided with an alarm module; the control system comprises a communication module, a program setting module and a processor which are connected with each other, wherein the processor receives signals sent by a temperature sensor I, a weighing sensor II, a speed measuring sensor and a temperature sensor II which are arranged on the single-machine equipment through the communication module, processes the received signals and sends instructions;
the single-machine equipment for production comprises a grinding mechanism 1, a metering mechanism 2, a forming and sintering mechanism 3 and a screening mechanism 4, wherein the grinding mechanism 1 comprises a plurality of raw material pretreatment devices 5 and a ball mill 8, each raw material pretreatment device 5 comprises a lifting bin and a roller press, different raw materials are crushed by the raw material pretreatment devices 5 and then enter the metering mechanism 2, and a feed opening of the roller press is provided with a temperature sensor I for measuring the material temperature and preventing the roller press from overheating;
the metering mechanism 2 and the raw material pretreatment device 5 are provided with a plurality of sets in a matched manner and are respectively arranged below each roller press, each set of metering mechanism 2 comprises a feeding device 6 and a weighing device 7, the feeding device 6 comprises a conical feeding pipe 601, a storage box 602 and a material guide pipe 603, the inner wall of the storage box 602 is uniformly provided with a plurality of spiral material distributing plates 10 with different lengths, materials sliding down from the spiral material distributing plates 10 above fall on the spiral material distributing plates 10 below, the falling time of the raw materials falling from the conical discharging pipe 601 is prolonged by arranging the multi-stage spiral material distributing plates 10, and the raw materials are dispersed and prevented from being accumulated in the storage box 602 to cause the blockage of the powder material guide pipe 603;
a plurality of flow distribution plates 604 with weighing sensors I mounted at the bottoms are arranged in the material guide pipe 603, a control valve 606 is arranged at the lower end of the material guide pipe 603, the flow distribution plates 604 are sequentially arranged on the inner wall of the material guide pipe 603 through a rotating shaft 605, holes are uniformly formed in the flow distribution plates 604, the diameters of the holes are sequentially increased according to the sequence that the flow distribution plates 604 are arranged on the inner wall of the material guide pipe 603 from top to bottom, when raw materials fall from the material guide pipe 603, the raw materials firstly fall on the flow distribution plates 604 and leak out of the holes to play a role of buffering and distributing, the weighing sensors I are arranged at the bottom of the flow distribution plates 604, when the weight of the flow distribution plates 604 is larger than a set threshold value, the weighing sensors I can send signals to a control system, the control system controls the rotating shaft 605 to rotate by 90 degrees, the raw materials on the flow distribution plates 604 are poured to increase the flow of the falling materials, and the, Due to the flocculation effect, workers do not need to beat the pipeline frequently, and the metering efficiency is improved; the weighing device 7 comprises a belt scale 701, a weighing sensor II and a speed measuring sensor, the weighing sensor II and the speed measuring sensor are arranged below the belt scale 701, a metering program of the weighing sensor II can be set in a control system, when materials on the belt scale 701 reach a set value of the weighing sensor II, the control system sends an instruction to close a control valve 606, and various raw materials metered by the weighing device 7 enter the ball mill 8;
the feeding port 801 of the ball mill 8 is respectively connected with the discharging end of the belt scale 701 through a discharging pipe, the discharging port 802 of the ball mill 8 is communicated with the forming sintering mechanism 3, a temperature sensor II for measuring the discharging temperature and preventing overheating of the ball mill 8 is arranged at the discharging port 802, the forming sintering mechanism 3 comprises a granulator, a drying box and a sintering furnace, an angle measuring instrument and a rotating speed sensor are arranged on the granulator, the angle measuring instrument and the rotating speed sensor transmit signals to a processor through a communication module, and the processor regulates and controls the angle and the rotating speed of the granulator according to a program set by a program setting module; the material after ball milling by the ball mill 8 enters the molding sintering mechanism 3 from the discharge hole 802; the aggregate is not required to be observed and guided manually from grinding, batching and molding sintering, and a control system is used for regulating and controlling devices such as a temperature sensor I, a temperature sensor II, a speed measuring sensor, a weighing sensor I, a weighing sensor II, an angle measuring instrument and the like which are arranged on single-machine equipment, so that the autonomous regulating capacity in the production process of the artificial aggregate is improved, the error of manual intervention is reduced, the intelligence and the continuity are enhanced, the operation is carried out at the optimal load, the yield is improved, the shutdown maintenance is reduced, and the fault handling capacity and the production efficiency are effectively improved;
screening mechanism 4 is including the vibratory screening case 9 that is used for screening the aggregate size after the sintering, vibratory screening case 9 top is equipped with feeder hopper 901, be equipped with the screening board 902 that has different apertures in vibratory screening case 9, screening board 902 falls into a plurality of independent cavities 903, every with vibratory screening case 9 one side of cavity 903 is equipped with hierarchical discharge gate 904, hierarchical discharge gate 904 below is equipped with hierarchical receipts workbin, vibratory screening case 9 below is equipped with telescopic hydraulic column 905, hydraulic column 905 is connected with the control system electricity, and the aggregate of the different grades after the vibratory screening temporarily exists in cavity 903, regularly starts hydraulic column 905, makes cavity 903 to the slope of hierarchical discharge gate 904 orientation, unloads out the aggregate.
The use method of the intelligent control system for aggregate production comprises the following steps:
(1) firstly, setting the highest temperature of a temperature sensor I and a temperature sensor II, the transmission speed range of a speed measuring sensor, the weight threshold of a weighing sensor I, the rotation range of an angle measuring instrument and the rotation speed range of a rotating speed sensor by a program setting module of a control system, and then setting the preset weight of the weighing sensor II according to the mixing ratio of raw materials;
(2) various raw materials required for producing the aggregate respectively enter respective raw material pretreatment devices 5, are conveyed to a roller press through a lifting bin, are primarily crushed by the roller press and are respectively conveyed to a metering mechanism 2 from a feed opening of the roller press; when the temperature of a feeding hole of the roller press exceeds a set high temperature, a signal is sent to the alarm module and the processor by the temperature sensor I through the communication module, the alarm module gives out an alarm, and the processor adjusts the running state of the roller press;
(3) the crushed raw materials enter respective metering mechanisms 2 respectively, are fed into a storage box 602 through a conical feeding pipe 601, are sequentially dispersed to a material guide pipe 603 through a spiral material distribution plate 10 in the storage box 602, are conveyed to a belt weigher 701 through the material guide pipe 603, reach the weight required by proportioning after being regulated and controlled by a weighing sensor II, a control valve 606 at the lower end of the material guide pipe 603 is closed, and each raw material is conveyed to a ball mill 8 through the discharge end of the belt weigher 701, so that the transmission speed of the belt weigher 701 can be adjusted according to the speed of blanking in the conveying process;
(4) the raw materials are uniformly mixed in the ball mill 8, when the temperature of a discharge port 802 of the ball mill 8 and the temperature of a feed port of the roller press exceed the set high temperature, signals are sent to an alarm module and a processor by a temperature sensor I and a temperature sensor II through a communication module, the alarm module gives out an alarm, and the processor adjusts the running states of the roller press and the ball mill 8;
(5) regulating and controlling the angle and the rotating speed of the granulator through a program set by a program setting module, so that the ground raw materials are molded in the granulator, and the molded blanks are dried and sintered to prepare aggregates;
(6) the sintered aggregate is sent into a vibration screening box 9 for particle size screening, the aggregate with small particle size sequentially passes through a screening plate 902 and falls on the bottom of the vibration screening box 9, the aggregate with larger particle size sequentially falls in a cavity 903 formed by the screening plate 902 and the vibration screening box 9, after screening is finished, a timing program is set in a program setting module of a control system, a telescopic hydraulic column 905 is started by timing control, the vibration screening box 9 is inclined towards a grading discharge port 904, the aggregates with different particle sizes after screening are discharged from respective grading discharge ports 904, and then production of the aggregate is finished.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The intelligent control system for aggregate production comprises a plurality of single-machine devices and a control system for production, and is characterized in that the single-machine devices for production comprise a grinding mechanism, a metering mechanism, a forming and sintering mechanism and a screening mechanism, the grinding mechanism comprises a plurality of raw material pretreatment devices and a ball mill, each raw material pretreatment device comprises a lifting bin and a roller press, different raw materials are crushed by the raw material pretreatment devices and then enter the metering mechanism, and a feed opening of the roller press is provided with a temperature sensor I for measuring the temperature of the materials and preventing the roller press from overheating;
the metering mechanism and the raw material pretreatment device are provided with a plurality of sets in a matched manner and are respectively arranged below each roller press, each set of metering mechanism comprises a feeding device and a weighing device, the feeding device comprises a conical feeding pipe, a material storage box and a material guide pipe, a plurality of flow distribution plates with weighing sensors I mounted at the bottoms are arranged in the material guide pipe, the lower end of the material guide pipe is provided with a control valve, and the flow distribution plates are sequentially arranged on the inner wall of the material guide pipe through a rotating shaft; the weighing device comprises a belt scale, a weighing sensor II and a speed measuring sensor, wherein the weighing sensor II and the speed measuring sensor are arranged below the belt scale;
the feeding port of the ball mill is respectively connected with the discharging end of the belt scale through a discharging pipe, the discharging port of the ball mill is communicated with the forming mechanism, a temperature sensor II for measuring the discharging temperature and preventing the ball mill from overheating is arranged at the discharging port, the forming sintering mechanism comprises a granulator, a drying box and a sintering furnace, and the material ball-milled by the ball mill enters the forming sintering mechanism from the discharging port;
the screening mechanism comprises a vibration screening box for screening the size of the sintered aggregate, a feed hopper is arranged above the vibration screening box, screening plates with different apertures are arranged in the vibration screening box, the screening plates divide the vibration screening box into a plurality of independent cavities, a grading discharge port is arranged on one side of each cavity, a telescopic hydraulic column is arranged below the vibration screening box, and the hydraulic column is electrically connected with a control system;
the control system comprises a communication module, a program setting module and a processor which are connected with each other, wherein the processor receives signals sent by a temperature sensor I, a weighing sensor II, a speed measuring sensor and a temperature sensor II which are arranged on the single-machine equipment through the communication module, and processes and sends instructions to the received signals.
2. The intelligent aggregate production control system according to claim 1, wherein the inner wall of the storage box is uniformly provided with a plurality of spiral material distributing plates with different lengths, and materials sliding from the spiral material distributing plate above fall on the spiral material distributing plate below.
3. The intelligent control system for aggregate production according to claim 1, wherein the flow distribution plate is uniformly provided with holes, and the diameters of the holes are increased in sequence from top to bottom on the inner wall of the material guide pipe.
4. The intelligent aggregate production control system of claim 1, wherein each single machine is provided with a motor.
5. The intelligent aggregate production control system according to claim 1, wherein the granulator is provided with an angle measuring instrument and a rotation speed sensor, the angle measuring instrument and the rotation speed sensor transmit signals to the processor through the communication module, and the processor regulates and controls the angle and the rotation speed of the granulator according to a program set by the program setting module.
6. The intelligent control system for aggregate production according to claim 1, wherein a grading material receiving box is arranged below the grading discharge hole.
7. The intelligent control system for aggregate production according to claim 1, wherein an alarm module is arranged on the control system.
8. The use method of the intelligent control system for aggregate production according to claim 1, characterized by comprising the following steps:
(1) firstly, setting the highest temperature of a temperature sensor I and a temperature sensor II, the transmission speed range of a speed measuring sensor, the weight threshold of a weighing sensor I, the rotation range of an angle measuring instrument and the rotation speed range of a rotating speed sensor by a program setting module of a control system, and then setting the preset weight of the weighing sensor II according to the mixing ratio of raw materials;
(2) various raw materials required for producing the aggregate respectively enter respective raw material pretreatment devices, are conveyed to a roller press through a lifting bin, are primarily crushed by the roller press and are respectively conveyed to a metering mechanism from a feed opening of the roller press; when the temperature of a feeding hole of the roller press exceeds a set high temperature, a signal is sent to the alarm module and the processor by the temperature sensor I through the communication module, the alarm module gives out an alarm, and the processor adjusts the running state of the roller press;
(3) the crushed raw materials respectively enter respective metering mechanisms, are fed into a storage box through a conical feeding pipe, are sequentially dispersed to a material guide pipe through a spiral material distribution plate in the storage box, are conveyed to a belt weigher through the material guide pipe, reach the weight required by the proportion after being regulated and controlled by a weighing sensor II, a control valve at the lower end of the material guide pipe is closed, all the raw materials are conveyed to a ball mill through the discharge end of the belt weigher, and the transmission speed of the belt weigher is adjusted according to the feeding speed in the conveying process;
(4) the raw materials are uniformly mixed in the ball mill, when the temperature of a discharge port of the ball mill and the temperature of a feed port of the roller press exceed set high temperatures, signals are sent to an alarm module and a processor by a temperature sensor I and a temperature sensor II through a communication module, the alarm module gives out an alarm, and the processor adjusts the running states of the roller press and the ball mill;
(5) regulating and controlling the angle and the rotating speed of the granulator through a program set by a program setting module, so that the ground raw materials are molded in the granulator, and the molded blanks are dried and sintered to prepare aggregates;
(6) the sintered aggregate is sent into the vibration screening box to be screened for the particle size, the aggregate with small particle size sequentially passes through the screening plate and falls on the bottom of the vibration screening box, the aggregate with large particle size sequentially falls in a cavity formed by the screening plate and the vibration screening box, after screening is finished, a timing program is set in a program setting module of a control system, a telescopic hydraulic column is started by timing control, the vibration screening box is inclined towards the grading discharge port, the aggregates with different particle sizes after screening are discharged from respective grading discharge ports, and production of the aggregate is finished.
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CN113275119A (en) * 2021-06-29 2021-08-20 中国水利水电第九工程局有限公司 Online quality control preparation system of grit processing extra fine workshop
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CN115055273B (en) * 2022-05-24 2024-03-29 华北电力科学研究院有限责任公司 Intelligent control method and device for pulverizing system under full-working-condition wide load
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