CN114229499A - Stable unloading of fly ash and measurement system - Google Patents
Stable unloading of fly ash and measurement system Download PDFInfo
- Publication number
- CN114229499A CN114229499A CN202111518479.4A CN202111518479A CN114229499A CN 114229499 A CN114229499 A CN 114229499A CN 202111518479 A CN202111518479 A CN 202111518479A CN 114229499 A CN114229499 A CN 114229499A
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- China
- Prior art keywords
- blanking
- driving motor
- hopper
- fly ash
- roller
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/005—Control arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/68—Large containers characterised by means facilitating filling or emptying preventing bridge formation using rotating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
- B65G47/18—Arrangements or applications of hoppers or chutes
- B65G47/19—Arrangements or applications of hoppers or chutes having means for controlling material flow, e.g. to prevent overloading
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/48—Devices for emptying otherwise than from the top using other rotating means, e.g. rotating pressure sluices in pneumatic systems
- B65G65/4881—Devices for emptying otherwise than from the top using other rotating means, e.g. rotating pressure sluices in pneumatic systems rotating about a substantially horizontal axis
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention discloses a stable feeding and metering system for fly ash, which comprises: and the blanking device is positioned at the feeding end of the sealing belt type constant feeder, and the discharging end of the sealing belt type constant feeder is provided with a blanking hopper. The feeding speed information is accurately controlled through three-level material stabilization, the feeding speed of the sealing belt type constant feeder is corrected through the weight information obtained by the first weighing sensor, and therefore the feeding speed is accurate and the feeding stability is kept.
Description
Technical Field
The invention relates to a blanking system capable of effectively controlling blanking speed, in particular to a stable blanking and metering system for fly ash.
Background
During the cement production process, fly ash is added into raw materials to replace clay, or fly ash is added into clinker to increase the fluidity of the clinker. The existing blanking system generally adopts a storage barrel to configure a belt type constant feeder to control blanking, but when the blanking is too violent or the blanking is broken due to the shed material, the belt type constant feeder cannot effectively regulate the stable blanking. The belt type constant feeder can only calculate the feeding speed, namely the feeding amount in a unit time period according to the weight of the weighing sensor and the running speed of the carrier roller, but the calculated feeding speed has a large deviation from the actual feeding speed, and cannot be automatically corrected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a stable blanking and metering system for high-moisture desulfurized gypsum, which solves the problems that the blanking stability is not high and the correction cannot be carried out according to the actual blanking speed in the prior art.
In order to achieve the above object, the technical solution adopted by the present invention comprises: unloader, unloader are located sealed belt constant feeder's feed end, and sealed belt constant feeder's discharge end is equipped with down the hopper, unloader includes: the support is equipped with a storage section of thick bamboo on the support, and a storage section of thick bamboo is equipped with feed inlet and discharge gate, and discharge gate department is equipped with the valve that dams, and a storage section of thick bamboo is equipped with flow aid device, and the top of discharge gate is equipped with two at least unloading wheels, and the unloading wheel includes: the device comprises a wheel cylinder, a cutter holder and a cutter holder, wherein the two ends of the wheel cylinder are connected with wheel shafts, blades are arranged on the wheel cylinder, and at least one wheel shaft is provided with a blanking driving motor;
sealed belt batcher includes: the frame is provided with a sealing cover, the sealing cover is provided with a feeder inlet and a feeder outlet, the feeder inlet corresponds to the discharge port, a driving roller and a turnabout roller are arranged in the sealing cover, more than one carrier roller is arranged between the driving roller and the turnabout roller, at least one carrier roller is provided with at least one second weighing sensor, the driving roller, the turnabout roller and the carrier roller are wound around a belt, the driving roller is connected with a roller driving motor, and the turnabout roller is provided with a rotating speed sensor;
the lower hopper includes: the hopper body is provided with a discharging hopper inlet and a discharging hopper outlet, the discharging hopper inlet corresponds to the feeder outlet, a rotating shaft is arranged above the discharging hopper outlet, more than six discharging blades are arranged on the rotating shaft, the rotating shaft is connected with a hopper driving motor, and the hopper body is provided with a first weighing sensor;
the first weighing sensor, the second weighing sensor, the rotating speed sensor, the roller driving motor, the blanking driving motor, the hopper driving motor, the cutoff valve and the flow aiding device are respectively connected with the controller.
The flow aid device comprises: the stirring shaft is connected with a stirring rod, the stirring shaft is connected with a flow-assistant driving motor, and the flow-assistant driving motor is connected with a controller.
The storage cylinder is equipped with upper limit detection sensor and lower limit detection sensor, and upper limit detection sensor and lower limit detection sensor connect the controller respectively.
The stirring rods are more than two and are spirally connected to the stirring shaft.
The first weight data acquisition time point of the second weighing sensor is earlier than the first weight data acquisition time point of the first weighing sensor.
And the blanking speeds of the blanking device, the sealing belt type constant feeder and the blanking hopper are synchronous.
The shutoff valve includes: and one end of the valve rod is connected with a valve executing motor, the other end of the valve rod is connected with a valve plate, two sides of the valve plate are positioned in the valve body, and the valve executing motor is connected with a controller.
If the average blanking weight value of the weight data detected by the first weighing sensor in the correction period is less than or equal to 95% of the preset blanking speed, the difference value of the preset blanking speed and the average blanking weight value is fed back to the controller to accelerate the rotating speed of the quantitative feeding driving motor, and if the average blanking weight value of the weight data detected by the first weighing sensor in the verification period is greater than or equal to 105% of the preset blanking speed, the difference value of the average blanking weight value and the preset blanking speed is fed back to the controller to reduce the rotating speed of the quantitative feeding driving motor.
The correction period is formed by adding a collection time slice to a rest time slice; or the lower section of the material storage cylinder is in a three-section type, wherein the upper section and the lower end are inclined planes, and the middle section is an inward convex arc surface.
According to the invention, through the blanking device, the sealed belt type constant feeder and the blanking hopper, the blanking speed information is accurately controlled through three-stage material stabilization, and the blanking speed of the sealed belt type constant feeder is corrected through the weight information obtained by the first weighing sensor, so that the blanking speed is accurate, the blanking stability is kept, and the situation of unstable blanking caused by material flushing is avoided. Secondly, thereby further avoid the appearance of canopy material condition through setting up flow aid device, guarantee unloader's stability. And thirdly, the correction period of the first weighing sensor consists of a collection time slice and a rest time slice, so that the blanking speed of the sealed belt type constant feeder is corrected timely, the processed data volume is effectively reduced, and the control method is simplified. Fourthly, the lower section of the storage cylinder is of a three-section structure, and the blanking device is convenient for blanking and is not easy to cause the condition of shed material.
Drawings
Fig. 1 is a schematic sectional view of a blanking device according to an embodiment of the present invention, and fig. 2 is a schematic sectional view of a blanking hopper according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
Embodiments of the invention include: and the blanking device is positioned at the feeding end of the sealing belt type constant feeder, and the discharging end of the sealing belt type constant feeder is provided with a blanking hopper.
As shown in fig. 1, the blanking device comprises: support 1 is equipped with storage section of thick bamboo 2 on the support 1, and storage section of thick bamboo 2 is equipped with feed inlet 3 and discharge gate 4. Discharge gate 4 departments are equipped with the valve that dams, and the valve that dams includes: and one end of the valve rod is connected with a valve executing motor, the other end of the valve rod is connected with a valve plate, two sides of the valve plate are positioned in the valve body, and the valve executing motor is connected with a controller. The storage cylinder is equipped with and helps a class device, helps a class device to include: the stirring shaft 5 is connected with the stirring rod 6, the stirring shaft 5 is connected with the flow-aiding driving motor 7, and the flow-aiding driving motor 7 is connected with the controller. The number of the stirring rods 6 is more than two, and each stirring rod 6 is spirally connected to the stirring shaft 5.
Two discharging wheels are arranged above the discharging port 4, and each discharging wheel comprises: the wheel barrel 8 is provided with blades 9, and two ends of the wheel barrel are connected with a wheel barrel wheel shaft 17. The wheel cylinder 8 is a cylinder with two closed ends. The two wheel drum wheel shafts 17 are linked through driven gears connected to the wheel drum wheel shafts respectively, one driven gear is meshed with a driving gear, and the driving gear is connected with a discharging driving motor. The section of the lower part of the storage barrel 2 is of a three-section type, wherein the upper section and the lower end are inclined planes, and the middle section is an inward convex arc surface, so that the fly ash can fall conveniently and the shed material can be prevented from happening. The connection between the arc surface of the middle section of the lower part of the storage cylinder 2 and the inclined surface of the lower section of the storage cylinder is tangent to the circumference formed by the movement of the blade 9, so that the storage cylinder has no blanking dead angle. The storage cylinder 2 is provided with an upper limit detection sensor and a lower limit detection sensor for detecting the amount of the fly ash in the storage cylinder.
Sealed belt batcher includes: be equipped with the sealed cowling in the frame, be equipped with batcher import and batcher export on the sealed cowling, the batcher import corresponds the discharge gate, be equipped with driving pulley and driven pulley in the sealed cowling, be equipped with more than four bearing rollers between driving pulley and driven pulley, wherein two adjacent bearing rollers are equipped with second weighing sensor respectively, the both ends of every bearing roller respectively are equipped with a second weighing sensor, be equipped with four second weighing sensor altogether, driving pulley, driven pulley and bearing roller outer loop are around the belt, driving pulley connects the cylinder driving motor, driven pulley is equipped with speed sensor.
As shown in fig. 2, the hopper comprises: hopper body 10, hopper body 10 are equipped with hopper import 11 and hopper export 12 down, and hopper import 11 corresponds the batcher export down, and the export 12 top of hopper is equipped with pivot 13 down, is equipped with unloading blade 14 more than six on the pivot 13, and hopper driving motor is connected in pivot 13, and hopper body 10 sets up 16 on the hopper body support, is equipped with first weighing sensor 15 between hopper body 10 and hopper body support.
The first weighing sensor, the second weighing sensor, the rotating speed sensor, the upper limit detection sensor, the lower limit detection sensor, the roller driving motor, the blanking driving motor, the hopper driving motor, the valve execution motor and the flow-assisting driving motor are respectively connected with the controller. The controller is a PLC controller, the controller is connected with a remote control computer through a communication network, and the remote control computer can detect various data through the controller and remotely and manually control each device connected with the controller. The first weight data acquisition time point of the second weighing sensor is earlier than the first weight data acquisition time point of the first weighing sensor. The roller driving motor, the blanking driving motor and the hopper driving motor are respectively connected with a frequency converter, each frequency converter is connected with a controller, and the controller respectively controls the rotating speed of the roller driving motor, the blanking driving motor and the hopper driving motor through the respectively connected frequency converters. The controller controls the closure valve to open and close through the valve execution motor, and can control the closure of the closure valve or prevent the occurrence of material leakage when feeding into the material storage barrel according to the preset blanking amount.
And if the average value of the blanking weight of the weight data detected by the first weighing sensor in the verification period is more than or equal to 105% of the preset blanking speed, the difference value of the average value of the blanking weight and the preset blanking speed is fed back to the controller to reduce the rotating speed of the quantitative feeding driving motor. The correction period is obtained by adding a collection time slice to a rest time slice, wherein the collection time slice is 30 seconds, the rest time slice is also 30 seconds, and weight data are collected every 5 seconds in the collection time slice.
The controller calculates according to the sum of the weight data of the four second weighing sensors and the speed data acquired by the rotating speed sensor at the same time point in a second weight acquisition period according to the following formula:
and is
The controller calculates and obtains the current blanking speed and compares with the preset blanking speed after obtaining data according to the second weighing sensor and the rotating speed sensor, and if the current blanking speed is less than or equal to 95% of the preset blanking speed, the controller increases the rotating speed of the quantitative feeding driving motor to the following adjusting rotating speed:
and the rotating speed of the flow aid driving motor is increased to 3% of the preset rotating speed.
If the current blanking speed is more than or equal to 105% of the preset blanking speed, the controller reduces the rotating speed of the dosing driving motor to the following adjusting rotating speed:
and the rotating speed of the flow aid driving motor is reduced to 3% of the preset rotating speed.
And if the current blanking speed is less than 105% of the preset blanking speed and greater than 95% of the preset blanking speed, setting the rotating speed of the flow aid driving motor as the preset rotating speed by the controller.
The controller records the weight data obtained by the first weighing sensor every time as the current blanking speed, and the recorded used weight data is divided by the detection times to obtain the average blanking speed.
The blanking device, the sealing belt type constant feeder and the blanking hopper have synchronous blanking speed, and the rotating speed of the hopper driving motor is the same as that of the constant feeding driving motor. The upper limit detection sensor sends an alarm through the controller when exceeding the upper limit of the storage barrel so as to stop the feeding of the storage barrel to prevent the phenomenon that the storage is too much and the discharging is not smooth when the storage pressure is too high. The lower limit detection sensor sends an alarm through the controller when exceeding the lower limit of the storage barrel and stops the operation of subsequent equipment, so that the condition of flow cutoff can be avoided.
When the automatic blanking machine is used for blanking, the blanking device, the sealing belt type constant feeder and the blanking hopper are sequentially controlled by the controller to enable the blanking speeds of the blanking device, the sealing belt type constant feeder and the blanking hopper to be synchronous, so that the blanking speed is accurately and stably close to a preset blanking speed value, the total blanking amount is conveniently measured, the total blanking amount is equal to the average blanking speed multiplied by the blanking time, and when blanking fluctuation or errors occur, correction is carried out through the controller.
While the foregoing description of the disclosed embodiments will enable one skilled in the art to make or use the invention, various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Therefore, any technical solutions that are the same as or similar to the embodiment fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a unloading and measurement system are stabilized to fly ash, includes unloader, and unloader is located sealed belt constant feeder's feed end, and sealed belt constant feeder's discharge end is equipped with down hopper, its characterized in that, unloader includes: the support is equipped with a storage section of thick bamboo on the support, and a storage section of thick bamboo is equipped with feed inlet and discharge gate, and discharge gate department is equipped with the valve that dams, and a storage section of thick bamboo is equipped with flow aid device, and the top of discharge gate is equipped with two at least unloading wheels, and the unloading wheel includes: the blade-feeding mechanism comprises wheel shafts, blades and a feeding driving motor, wherein the blades are arranged on the wheel shafts;
sealed belt batcher includes: the frame is provided with a sealing cover, the sealing cover is provided with a feeder inlet and a feeder outlet, the feeder inlet corresponds to the discharge port, a driving roller and a turnabout roller are arranged in the sealing cover, more than one carrier roller is arranged between the driving roller and the turnabout roller, at least one carrier roller is provided with at least one second weighing sensor, the driving roller, the turnabout roller and the carrier roller are wound around a belt, the driving roller is connected with a roller driving motor, and the turnabout roller is provided with a rotating speed sensor;
the lower hopper includes: the hopper body is provided with a discharging hopper inlet and a discharging hopper outlet, the discharging hopper inlet corresponds to the feeder outlet, a rotating shaft is arranged above the discharging hopper outlet, more than six discharging blades are arranged on the rotating shaft, the rotating shaft is connected with a hopper driving motor, and the hopper body is provided with a first weighing sensor;
the first weighing sensor, the second weighing sensor, the rotating speed sensor, the roller driving motor, the blanking driving motor, the hopper driving motor, the cutoff valve and the flow aiding device are respectively connected with the controller.
2. The fly ash stable blanking and metering system as set forth in claim 1, wherein: the flow aid device comprises: the stirring shaft is connected with a stirring rod, the stirring shaft is connected with a flow-assistant driving motor, and the flow-assistant driving motor is connected with a controller.
3. The fly ash stable blanking and metering system as set forth in claim 1, wherein: the storage cylinder is equipped with upper limit detection sensor and lower limit detection sensor, and upper limit detection sensor and lower limit detection sensor connect the controller respectively.
4. The fly ash stable blanking and metering system as set forth in claim 3, wherein: the stirring rods are more than two and are spirally connected to the stirring shaft.
5. A stable blanking and metering system of fly ash as claimed in any one of claims 1 to 4, wherein: the first weight data acquisition time point of the second weighing sensor is earlier than the first weight data acquisition time point of the first weighing sensor.
6. A stable blanking and metering system of fly ash as claimed in any one of claims 1 to 4, wherein: the rotating speed of the hopper driving motor is the same as that of the quantitative feeding driving motor.
7. The fly ash stable blanking and metering system as set forth in claim 5, wherein: and the blanking speeds of the blanking device, the sealing belt type constant feeder and the blanking hopper are synchronous.
8. A stable blanking and metering system of fly ash as claimed in any one of claims 1 to 4, wherein: the shutoff valve includes: and one end of the valve rod is connected with a valve executing motor, the other end of the valve rod is connected with a valve plate, two sides of the valve plate are positioned in the valve body, and the valve executing motor is connected with a controller.
9. The fly ash stable blanking and metering system as set forth in claim 7, wherein: if the average blanking weight value of the weight data detected by the first weighing sensor in the correction period is less than or equal to 95% of the preset blanking speed, the difference value of the preset blanking speed and the average blanking weight value is fed back to the controller to accelerate the rotating speed of the quantitative feeding driving motor, and if the average blanking weight value of the weight data detected by the first weighing sensor in the verification period is greater than or equal to 105% of the preset blanking speed, the difference value of the average blanking weight value and the preset blanking speed is fed back to the controller to reduce the rotating speed of the quantitative feeding driving motor.
10. The fly ash stable feeding and metering system as set forth in claim 9, wherein: the correction period is formed by adding a collection time slice to a rest time slice; or the lower section of the material storage cylinder is in a three-section type, wherein the upper section and the lower end are inclined planes, and the middle section is an inward convex arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111518479.4A CN114229499A (en) | 2021-12-13 | 2021-12-13 | Stable unloading of fly ash and measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111518479.4A CN114229499A (en) | 2021-12-13 | 2021-12-13 | Stable unloading of fly ash and measurement system |
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| Publication Number | Publication Date |
|---|---|
| CN114229499A true CN114229499A (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111518479.4A Pending CN114229499A (en) | 2021-12-13 | 2021-12-13 | Stable unloading of fly ash and measurement system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115262308A (en) * | 2022-08-04 | 2022-11-01 | 保利长大工程有限公司 | Carbonaceous mudstone low-permeability surrounding rock roadbed and grouting equipment |
-
2021
- 2021-12-13 CN CN202111518479.4A patent/CN114229499A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115262308A (en) * | 2022-08-04 | 2022-11-01 | 保利长大工程有限公司 | Carbonaceous mudstone low-permeability surrounding rock roadbed and grouting equipment |
| CN115262308B (en) * | 2022-08-04 | 2023-09-05 | 保利长大工程有限公司 | Carbonaceous mudstone low-permeability surrounding rock roadbed and grouting equipment |
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