CN114858261A - Calibration device and calibration method for belt weigher - Google Patents
Calibration device and calibration method for belt weigher Download PDFInfo
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- CN114858261A CN114858261A CN202210520410.3A CN202210520410A CN114858261A CN 114858261 A CN114858261 A CN 114858261A CN 202210520410 A CN202210520410 A CN 202210520410A CN 114858261 A CN114858261 A CN 114858261A
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- unloading
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 89
- 238000007599 discharging Methods 0.000 claims abstract description 43
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 238000005303 weighing Methods 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 6
- 235000013312 flour Nutrition 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 10
- 230000032258 transport Effects 0.000 description 6
- 230000003068 static effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
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- General Physics & Mathematics (AREA)
- Structure Of Belt Conveyors (AREA)
- Control Of Conveyors (AREA)
Abstract
The invention provides a calibration device and a calibration method of a belt weigher, wherein the calibration device of the belt weigher comprises an unloading belt, a buffer bin, a disc feeder and a discharging belt which are sequentially arranged along the material conveying direction, and the unloading belt is provided with the belt weigher; the two ends of the blanking belt are respectively a blanking end and a metering end, the metering end is provided with a metering belt, and the discharge end of the metering belt is used for being connected with a material carrying vehicle; the blanking belt can be switched between a discharging mode and a scale correcting mode, and when in the discharging mode, the blanking belt rotates forwards, and the material is output from a blanking end of the blanking belt; during the school balance mode, the unloading belt reversal, the material is exported from the measurement end of unloading belt, and warp the measurement belt falls into the skip to transport the material to truck scale. The belt weigher can realize the metering of materials and the calibration of the belt weigher, and has the advantages of small investment, high metering precision, high asset utilization rate, and low daily maintenance difficulty and cost.
Description
Technical Field
The invention belongs to the technical field of material conveying equipment, and particularly relates to a calibration device and a calibration method for a belt weigher.
Background
The belt conveyor is a belt conveyor for short, and has the advantages of fixed type, movable type, simple structure and high efficiency. The friction force between the driving roller and the belt is used to drag the conveyer belt and the material to run. The conveying device is suitable for conveying bulk materials and finished articles in horizontal and inclined directions, and can also be used in a production line for certain process operations. Simple structure, stable and reliable work, strong adaptability to materials, larger conveying capacity and wide application.
The calibration of the belt conveyor at present has three modes of material object calibration, chain code calibration and hanging code calibration, and the latter two modes have small investment but have zero point change and poorer calibration precision. Although the precision of the material object check (material metering mode) is high, the zero point of the scale is unchanged, the investment is high, a hopper scale or a high-precision large-scale static scale with a certain capacity needs to be built, the daily maintenance difficulty is high, the requirement on the quality of maintenance personnel is high, the parts are expensive, and the maintenance cost is high. And according to the related measurement regulations, the belt weigher only needs to be calibrated once every half year or one year, and the asset utilization rate is not high.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a calibration apparatus and a calibration method for a belt weighing scale, which are used to solve the problems of high calibration cost, low asset utilization rate and difficult maintenance of the belt conveyor in the prior art.
In order to achieve the above and other related objects, the present invention provides a calibration device for a belt weigher, comprising a discharge belt, a buffer bin, a disk feeder and a discharge belt, which are sequentially arranged along a material transportation direction, wherein the discharge belt is provided with a belt weigher; the two ends of the blanking belt are respectively a blanking end and a metering end, the metering end is provided with a metering belt, and the discharge end of the metering belt is used for being connected with a material carrying vehicle; the blanking belt can be switched between a discharging mode and a scale correcting mode, and when in the discharging mode, the blanking belt rotates forwards, and the material is output from a blanking end of the blanking belt; during the school balance mode, the unloading belt reversal, the material is exported from the measurement end of unloading belt, and warp the measurement belt falls into the skip to transport the material to truck scale.
Optionally, a change-over switch is arranged on the discharging belt and used for switching between the discharging mode and the scale calibration mode.
Optionally, the metering end of the blanking belt is located above the metering belt, and the metering end of the blanking belt is provided with an extension section which extends in a direction close to the metering belt.
Optionally, a surface increasing wheel is arranged at the bottom of the metering end of the blanking belt and is in running fit with the blanking belt.
Optionally, the disk feeder is located above the discharging belt, the buffer bin is located above the disk feeder, the buffer bin corresponds to the disk feeder, and the extending direction of the discharging belt is perpendicular to the extending direction of the discharging belt.
Optionally, the extending direction of the metering belt and the extending direction of the blanking belt are parallel to each other or have a set angle.
The invention also provides a calibration method of the belt weigher, which comprises the following steps:
unloading the material from the material carrying ship onto an unloading belt, and weighing and metering the material by a belt scale on the unloading belt to obtain a metering value of the belt scale;
the materials are conveyed to a buffer bin along with a discharging belt and fall onto a discharging belt through a disc feeder;
the blanking belt is switched to a scale calibration mode, so that the blanking belt is reversely rotated;
the material falls from the metering end of the blanking belt to the feeding end of the metering belt and falls into the material carrying vehicle through the discharging end of the metering belt;
the material carrying vehicle transfers the material to the truck scale for weighing and metering, and a metering numerical value of the truck scale is obtained;
and calibrating the belt scale according to the comparison between the metering value of the truck scale and the metering value of the belt scale.
Optionally, in the step of unloading the material from the material carrying boat onto the unloading belt, the material carrying boat unloads the material onto the unloading belt through a pontoon.
Optionally, in the step of switching the blanking belt to the scale calibration mode, the blanking belt is reversed through a change-over switch.
Optionally, before the step of switching the blanking belt to the scale calibration mode, the method further includes removing a backstop of the blanking belt.
As described above, the present invention has the following advantageous effects:
1. the investment is small, and the precision is high: according to the invention, the metering belt is arranged at the metering end of the blanking belt, materials are transferred to the transfer trolley, the existing truck scale is used as a static scale function, the metering of the materials is realized, and the belt scale is calibrated, so that the investment is smaller compared with the traditional mode that a new material bin and a high-precision large-scale static scale are required, and the material metering precision is higher;
2. the asset utilization rate is high: according to the invention, the metering belt is arranged, the existing truck scale is used for metering, and the production can be adjusted during calibration, so that the asset utilization rate is high;
3. the daily maintenance difficulty and the cost are low: the invention only needs to maintain one belt conveyor, and has simple maintenance and low maintenance cost.
Drawings
FIG. 1 is a schematic diagram of an overall structure of a calibration device of a belt scale according to an embodiment of the present invention;
fig. 2 is a schematic view of a portion of fig. 1.
Description of reference numerals
1-a material carrying ship; 2-wharf boat; 3-a discharge belt; 4-a buffer bin; 5-a disc feeder; 6-a blanking belt; 6 a-a blanking end; 6 b-a metering end; 61-backstop; 62-an extension; 63-a dough increasing wheel; 7-a metering belt; and 8-carrying vehicle.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
In order to be able to describe the invention in detail, the following description will be made of a calibration device and a calibration method for a belt scale according to the invention:
referring to fig. 1 and 2, the invention provides a calibration device for a belt weigher, which includes a discharge belt 3, a buffer bin 4, a disk feeder 5 and a discharge belt 6, which are sequentially arranged along a material transportation direction, wherein a first end of the discharge belt 3 is used for connecting a material carrying boat 1, a second end of the discharge belt 3 is connected with the buffer bin 4, and the discharge belt 3 is provided with the belt weigher; two ends of the blanking belt 6 are respectively a blanking end 6a and a metering end 6b, the metering end 6b is provided with a metering belt 7, and a discharging end of the metering belt 7 is used for being connected with a material loading vehicle 8; the blanking belt 6 can be switched between a discharging mode and a scale correcting mode, when in the discharging mode, the blanking belt 6 rotates forwards, and the material is output from a blanking end 6a of the blanking belt 6; during the school balance mode, unloading belt 6 reversal, the material is exported from the measurement of unloading belt 6 end 6b, and the warp measurement belt 7 falls into skip 8 to transport the material to truck scale.
Specifically, the arrangement condition of the wharf belt conveyor is fully utilized, and the real object calibration mode is optimized and improved. Through setting up a measurement belt 7 at the measurement end 6b of unloading belt 6, through the mode of switching unloading belt 6, can switch between the mode of unloading and school balance mode to whether need carry out the school balance according to the demand decision. When needs school balance, switch unloading belt 6 and be the school balance mode, with the material (for example shipping the ore) in proper order through unloading belt 3, surge bin 4, disk feeder 5 back, from the output of the measurement end 6b of unloading belt 6 and fall into on the skip 8, the rethread is carried skip 8 and is transported to the truck scale and weigh the material. Meanwhile, the belt weighers of the discharging belt 3 synchronously measure and compare the measured data of the truck scale with the measured data of the belt weighers by taking the measured data of the truck scale as a reference value, so that the aim of calibrating the belt weighers is fulfilled.
The disk feeder 5 is located above the discharging belt 6, the buffer bin 4 is located above the disk feeder 5, the buffer bin 4 corresponds to the disk feeder 5, and the extending direction of the discharging belt 3 is perpendicular to the extending direction of the discharging belt 6. The disk feeder 5 can be transversely arranged in a plurality and corresponds to the buffer bin 4. So, can conveniently realize the smooth and easy transportation of material to satisfy the on-the-spot material transport demand.
In some embodiments, the extension direction of the metering belt 7 and the extension direction of the blanking belt 6 are parallel or have a set angle. Specifically, the feeding end of the metering belt 7 corresponds to the metering end 6b of the blanking belt 6, and the discharging end of the metering belt 7 is used for corresponding to the material loading vehicle 8. In this embodiment, the extending direction of the metering belt 7 and the extending direction of the blanking belt 6 have a set angle, and in other embodiments, the extending direction of the metering belt 7 and the extending direction of the blanking belt 6 can be set according to actual requirements and field space arrangement conditions.
In the above embodiment, the discharging belt 6 is provided with a switch for switching between the discharging mode and the scale calibrating mode. Specifically, by arranging the change-over switch, the change-over switch can be operated to easily switch the working mode. When the automatic feeding device is used in daily life, the discharging belt 6 is switched to a discharging mode by operating the change-over switch, the discharging belt 6 rotates forwards, and materials are output to a field for use from the discharging end 6a of the discharging belt 6 after passing through the discharging belt 3, the buffer bin 4 and the disk feeder 5; when needs school balance, need demolish backstop 61 of unloading belt 6 earlier, make unloading belt 6 switch to the school balance mode through operation change over switch, unloading belt 6 reversal, the material is through unloading belt 3, surge bin 4, disk feeder 5 back, from the output of the measurement end 6b of unloading belt 6, transports the material to on the measurement belt 7, and the warp measurement belt 7 falls into skip car 8 to transport the material to the truck scale and measure.
In some embodiments, the metering end 6b of the blanking belt 6 is located above the metering belt 7, and the metering end 6b of the blanking belt 6 is provided with an extension section 62, and the extension section 62 extends in a direction close to the metering belt 7. Specifically, the metering end 6b of the blanking belt 6 is positioned above the metering belt 7, so that the material output from the metering end 6b of the blanking belt 6 can easily fall on the metering belt 7 by using gravity; in addition, in order to ensure that the material can fall on the metering belt 7 smoothly from the blanking belt 6, the extension section 62 is provided to play a role in transition from the blanking belt 6 to the metering belt 7.
It can be understood that the bottom of the metering end 6b of the blanking belt 6 is provided with a dough increasing wheel 63, and the dough increasing wheel 63 is in running fit with the blanking belt 6. Specifically, through setting up face wheel 63 that increases, can prevent that unloading belt 6 from taking place the phenomenon of skidding when the reversal, the stationarity when guaranteeing its reversal operation.
In addition, the invention also provides a calibration method of the belt weigher, which comprises the following steps:
unloading the material onto an unloading belt 3, and weighing and metering the material by a belt scale on the unloading belt 3 to obtain a metering value of the belt scale;
the materials are conveyed to a buffer bin 4 along with a discharging belt 3 and fall onto a discharging belt 6 through a disc feeder 5;
the blanking belt 6 is switched to a scale calibration mode, so that the blanking belt 6 is reversed;
the material falls from the metering end 6b of the blanking belt 6 to the feeding end of the metering belt 7 and falls into the material carrying vehicle 8 through the discharging end of the metering belt 7;
the material carrying vehicle 8 transfers the material to the truck scale for weighing and metering, and a metering value of the truck scale is obtained;
and calibrating the belt scale according to the comparison between the metering value of the truck scale and the metering value of the belt scale.
Wherein, in the step of unloading the material from carrying the material ship 1 to the belt 3 of unloading, carry the material ship 1 and unload the material to the belt 3 of unloading through the wharf boat 2. The pontoon 2 is a rectangular flat-bottomed non-self-propelled boat without a power unit, and is usually fixed on the shore to serve as a "pontoon" for berthing, boarding and disembarking passengers. And in the step of switching the blanking belt 6 to the scale calibration mode, the blanking belt 6 is reversely rotated through a change-over switch. Before the step of switching the blanking belt 6 to the scale calibration mode, the method further comprises the step of removing the backstop 61 of the blanking belt 6.
Specifically, in this embodiment, the material (e.g., ore) is unloaded from the material carrying vessel 1 onto the discharge belt 3 through the pontoon 2, and the discharge belt 3 is provided with a belt scale for measuring the material. The material is transported to the surge bin 4 along with the belt 3 of unloading, and then falls to the unloading belt 6 through the disk feeder 5. Before the belt weigher is calibrated, the backstop 61 of the blanking belt 6 is removed, and the blanking belt 6 is switched to a metering mode through the operation of a change-over switch, so that the blanking belt 6 is reversely rotated. The material is exported from the measurement end 6b of unloading belt 6, falls on measurement belt 7 again to finally fall into year skip 8, transport to the truck scale by year skip 8 and weigh the material once more. After the ship is unloaded by adopting the scale calibration mode, the belt scale is adaptively adjusted after the metering value of the truck scale is compared with the metering value of the belt scale, so that the calibration of the belt scale is realized.
In summary, the calibration device and the calibration method for the belt weigher according to the above embodiments transfer the material to the transfer vehicle by arranging the metering belt 7, and use the existing truck scale as a static scale function, so as to realize the metering of the material and calibrate the belt weigher, and compared with the conventional method that a new stock bin and a high-precision large-scale static scale are required, the calibration device and the calibration method have the advantages of low investment and high material metering precision; by arranging the metering belt 7, the existing truck scale is utilized for metering, and the metering can be realized by only adjusting production during calibration, so that the asset utilization rate is high; the invention only needs to maintain one belt conveyor, and has simple daily maintenance and low maintenance cost.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A calibrating device of belt weigher characterized in that: the automatic feeding device comprises a discharging belt, a buffer bin, a disc feeder and a discharging belt which are sequentially arranged along the material conveying direction, wherein a belt scale is arranged on the discharging belt; the two ends of the blanking belt are respectively a blanking end and a metering end, the metering end is provided with a metering belt, and the discharge end of the metering belt is used for being connected with a material carrying vehicle; the blanking belt can be switched between a discharging mode and a scale correcting mode, and when in the discharging mode, the blanking belt rotates forwards, and the material is output from a blanking end of the blanking belt; during the school balance mode, the unloading belt reversal, the material is exported from the measurement end of unloading belt, and warp the measurement belt falls into the skip to transport the material to truck scale.
2. The calibration device for a belt weighing scale of claim 1, wherein: and the blanking belt is provided with a change-over switch for switching between the unloading mode and the scale calibration mode.
3. The calibration device of a belt scale of claim 1, wherein: the metering end of the blanking belt is located above the metering belt, an extension section is arranged at the metering end of the blanking belt, and the extension section extends towards the direction close to the metering belt.
4. The calibration device of a belt scale of claim 1, wherein: the bottom of the metering end of the blanking belt is provided with a flour increasing wheel which is in running fit with the blanking belt.
5. The calibration device for a belt weighing scale of claim 1, wherein: the disc feeder is located above the discharging belt, the buffer bin is located above the disc feeder and corresponds to the disc feeder, and the extension direction of the discharging belt is perpendicular to that of the discharging belt.
6. The calibration device of a belt scale of claim 1, wherein: the extending direction of the metering belt and the extending direction of the blanking belt are parallel to each other or have a set angle.
7. A method of calibrating a belt scale, using the calibration apparatus of a belt scale according to any one of claims 1 to 6, comprising:
unloading the material from the material carrying ship onto an unloading belt, and weighing and metering the material by a belt scale on the unloading belt to obtain a metering value of the belt scale;
the materials are conveyed to a buffer bin along with a discharging belt and fall onto a discharging belt through a disc feeder;
the blanking belt is switched to a scale calibration mode, so that the blanking belt is reversely rotated;
the material falls from the metering end of the blanking belt to the feeding end of the metering belt and falls into the material carrying vehicle through the discharging end of the metering belt;
the material carrying vehicle transfers the material to the truck scale for weighing and metering, and a metering numerical value of the truck scale is obtained;
and calibrating the belt scale according to the comparison between the metering value of the truck scale and the metering value of the belt scale.
8. The method of calibrating a belt scale of claim 7, wherein: in the step of unloading the materials from the material carrying boat to the unloading belt, the material carrying boat unloads the materials to the unloading belt through the pontoon.
9. The method of calibrating a belt scale of claim 7, wherein: and in the step of switching the blanking belt to a scale calibration mode, the blanking belt is reversely rotated through a change-over switch.
10. The method of calibrating a belt scale of claim 7, wherein: before the step of switching the blanking belt to the scale calibration mode, the method also comprises the step of dismantling a backstop of the blanking belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210520410.3A CN114858261A (en) | 2022-05-12 | 2022-05-12 | Calibration device and calibration method for belt weigher |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210520410.3A CN114858261A (en) | 2022-05-12 | 2022-05-12 | Calibration device and calibration method for belt weigher |
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| CN114858261A true CN114858261A (en) | 2022-08-05 |
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| CN202210520410.3A Pending CN114858261A (en) | 2022-05-12 | 2022-05-12 | Calibration device and calibration method for belt weigher |
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