CN102353438B - Scale calibrating device and scale calibrating method for hopper scale with hopper or hopper bin horizontal detection - Google Patents

Scale calibrating device and scale calibrating method for hopper scale with hopper or hopper bin horizontal detection Download PDF

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Publication number
CN102353438B
CN102353438B CN 201110156919 CN201110156919A CN102353438B CN 102353438 B CN102353438 B CN 102353438B CN 201110156919 CN201110156919 CN 201110156919 CN 201110156919 A CN201110156919 A CN 201110156919A CN 102353438 B CN102353438 B CN 102353438B
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CN
China
Prior art keywords
hopper
school
feed bin
platform
weighing
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CN 201110156919
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Chinese (zh)
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CN102353438A (en
Inventor
季华锋
郑运红
任波
段臣斌
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中国一冶集团有限公司
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Priority to CN 201110156919 priority Critical patent/CN102353438B/en
Publication of CN102353438A publication Critical patent/CN102353438A/en
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Publication of CN102353438B publication Critical patent/CN102353438B/en

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Abstract

The invention relates to a scale calibrating device and a scale calibrating method for a hopper scale with hopper or hopper bin horizontal detection. The device mainly comprises a jack, a portal frame, a magnetic level instrument, a magnetic level instrument connection hose, a pressure applying platform, a standard weighing sensor and a weighing display instrument, wherein the lower end of the central position of a horizontal transverse beam of the portal frame is provided with the jack; the jack is vertically arranged on the upper surface of the standard weighing sensor for scale calibrating; the pressure applying platform is arranged below the standard weighing sensor for scale calibrating; and the magnetic level instrument mainly comprises a magnetic base and a plastic pipe with graduations. The jack is used for converting a standard weight needed by electronic scale calibration into mechanical force instead of a weight, the magnitude of applied force is controllable, and the loading is at a uniform speed and is reliable; the magnitude of the applied force is accurately displayed through the standard weighing sensor and the weighing display instrument, so that the accurate metering of mechanical force is realized; and the scale calibrating device has a simple structure and a low price, is suitable for narrow fields, can be used repeatedly, is flexible and convenient for applying, and is convenient to install and use on site.

Description

The hopper of band hopper or feed bin horizontal detection claims the school to claim device and school to claim method
Technical field
The present invention relates to a kind of metering correction and caliberating device, be specifically related to a kind of hopper with hopper/feed bin horizontal detection and claim the school to claim device and adopt the school of this device to claim method.
Background technology
Hopper/feed bin claims both to can be used as material level and detects (converting the weight of material of institute's weighing in the feed bin of a constant volume to height of materials is material level), detects as bin-level in the sintering engineering; Can be used as batch weigher again, as blast furnace ironmaking, the weighing proportioning of coke, ore etc. is and an important process procedure in the convertor steelmaking process, and whether its weighing precisely is directly connected to the quality of energy-saving and cost-reducing and products thereof quality, so hopper claims to have a wide range of applications in commercial production.Hopper claims to be made up of weigh hopper/feed bin and electronic scale (comprising LOAD CELLS and annex thereof, weighting display instrument) etc. usually, guarantee to weigh, prepare burden precisely, just must demarcate calibration to electronic scale, makes it reach the precision of designing requirement.And for the demarcation of electronic scale, classic method is to adopt the counterweight that loads standard weights to carry out.But this method need repeatedly be carried counterweight, and labour intensity is big, and efficiency is low.In loading the counterweight process, the display precision of electronic scale is also directly related with the putting position of counterweight, if it is bigger that counterweight is put inhomogeneous unbalance loading, to cause demarcating failure, even because inclination causes the uneven LOAD CELLS of damaging of load distribution, if the while counterweight is piled up and badly also may be caused collapsing hurting sb.'s feelings.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of hopper with hopper/feed bin horizontal detection to claim the school to claim device and school to claim method at above-mentioned technological deficiency, it is simple in structure, with low cost, and safe and reliable and easy and simple to handle applicability is forced to such an extent that raising is greatly imitated in work.
The present invention solves the problems of the technologies described above the technical scheme of taking to be:
The hopper of band hopper/feed bin horizontal detection claims the school to claim device, mainly comprise lifting jack, portal frame, the magnetic levels instrument, the magnetic levels instrument connects flexible pipe, the platform of exerting pressure, the standard LOAD CELLS, weighting display instrument, wherein, portal frame is fixedlyed connected with brace summer or ground by welding or bolt, the lower end, horizontal gird center of portal frame arranges lifting jack, lifting jack vertically is vertically set on the school and claims to use on the upper surface of standard LOAD CELLS, the school claims to be the platform of exerting pressure with the below of standard LOAD CELLS, certain thickness cushion block is set between portal frame and the lifting jack; The magnetic levels instrument mainly comprises magnetic bases and vertically is arranged on the plastic tube of the band scale of the upper end open on this base, connects the level meter group that flexible pipe connects and composes the sealing serial connection by the magnetic levels instrument between each level meter; The platform of exerting pressure is separately positioned on each outside, side of hopper/feed bin, and each trailing arm along continuous straight runs extends to the outside of each side; Weighting display instrument and each standard LOAD CELLS phase configuration and outer being located at make things convenient for the observations place; It is corresponding that the tricks that described school claims device and on-the-spot hopper claim to design the calibrated load cell number of use; Described calibrated load cell is the press-down type load sensor.
The magnetic levels instrument connects flexible pipe and by the hose adapter that each magnetic levels instrument magnetic bases horizontal ends left and right sides arranges respectively four magnetic levels instrument is constituted the level meter group that sealing is connected in series, each level meter is distributed in four jiaos of horizontal plane of hopper/feed bin, real-time follow-up, detects the stress balance situation of weighting platform.
Described weighting display instrument mainly comprises 4~8 sensor input channels, central controller, has guidance panel and a display screen of each function button; Each sensor input channel and a standard LOAD CELLS phase configuration; By the function button on the guidance panel central controller is carried out parameter and set, and show the gravimetric value of each sensor input and the general assembly (TW) of all sensors input by operating different function buttons in the display screen cocycle.
The thick cushion block of 20~60cm is set, to regulate the distance between the lifting jack of placing in portal frame and below between portal frame and the lifting jack.
Described weighting display instrument is 4 sensor input channels and 4 standard LOAD CELLS phase configuration only, by gravimetric value and 4 general assembly (TW)s that sensor is imported of operating each sensor input of different function buttons demonstration capable of circulation.
When the upper surface that be used for to support the trailing arm of hopper/feed bin when each calibrated load cell top, side of hopper/feed bin is the plane, the described upper surface of platform for each trailing arm of exerting pressure; At this moment, using this invention that hopper is claimed to carry out timing signal, the school claims device to pass through each trailing arm and its below is up and down vertical opposite by the LOAD CELLS of verification.Using this device to carry out timing signal, by the described school of quadruplet claim device in the outside of four sides of hopper of weighing uniform and with the strong point corresponding distribution up and down of calibrated load cell; If claiming to design by three calibrated load cells, on-the-spot hopper arranges the weighing system of forming in the outside, three sides therein, select for use three cover schools to claim the outside, described three sides that device is arranged in hopper/feed bin so, and the strong point of going up calibrated load cell with each outside up and down corresponding distribution get final product; Arrange identical with aforesaid way during overlap more.
When the upper surface that be used for to support the trailing arm of hopper/feed bin when each calibrated load cell top, side of hopper/feed bin is on-plane surface, being made into the upper surface by channel-section steel or steel plate is that each side that a plurality of little trailing arm on plane directly is welded on hopper/feed bin forms the described platform of exerting pressure, a plurality of little trailing arms need in each outside, side symmetry of the hopper/feed bin of weighing uniform, and each little trailing arm will be in same level height, and the horizontal support face of each little trailing arm is wanted level; At this moment, using this device that hopper is claimed to carry out timing signal, the school claims the little trailing arm of device and each vertical corresponding up and down.Using this device to carry out timing signal, the described school of quadruplet claims device to be distributed on to weigh on each little trailing arm of the platform of exerting pressure that the outside welding of four sides of hopper forms, and with the vertical corresponding distribution up and down of each little trailing arm; Arrange the weighing system of forming in the outside, three sides therein if on-the-spot hopper claims to design by three calibrated load cells, select for use so three cover schools claim device place in the outside, described three sides of hopper/feed bin and with the platform vertical corresponding distribution up and down of exerting pressure of welding formation; Arrange identical with aforesaid way during overlap more.
The range ability of weighing of single standard LOAD CELLS is selected from 0-1t, 0-5t, four scopes of 0-10t, 0-15t.
The principle of work of this device is:
Utilize principle and the fluid level principle of acting force and reacting force, upwards portal frame is produced acting force with lifting jack, form downward reacting force by portal frame, this power is loaded on standard LOAD CELLS and the calibrated load cell simultaneously, and the standard electronic of forming by standard LOAD CELLS and weighting display instrument claims, accurately show the size of power that each lifting jack applies and the summation of power that whole lifting jack applies, by the function button on the guidance panel central controller is carried out parameter and set, and show the result of a certain sensor input channel and result's sum total of all the sensors input channel on request by the display screen of operating different function button weighting display instruments; Civil time, select wherein 4 sensor input channels and 4 standard LOAD CELLS configurations one by one mutually.This school claims device that electronic scale is demarcated required standard weights to be transformed into the standard mechanical power easily that applies thus, accurately metering and replace counterweight to realize the demarcation that hopper is claimed as normal loading.Observe the horizontal situation of the hopper of weighing by hopper/four jiaos of four uniform level meters of feed bin horizontal plane in addition, to avoid the generation of weighting platform unbalance loading situation.
Adopt above-mentioned school to claim the school of device to claim method to be:
(1) after hopper claims whole installations, before electronic scale demarcated, at first the magnetic levels instrument group that four magnetic levels instrument are formed is placed on the hopper of weighing/feed bin horizontal plane, and uniform at hopper/four jiaos of feed bin horizontal planes, the plastic tube that passes through the band scale of upper end open with funnel injects an amount of water in the level meter group.Whether the installation that the real-time scale registration by water in each level meter detects the hopper/feed bin of weighing level, if out-of-level, then carries out necessary adjustment till being up to the standard.Then each magnetic levels instrument is all taken off from the hopper/feed bin of weighing, electronic scale is carried out Zero calibration, again each magnetic levels instrument is reapposed on the hopper/feed bin of weighing after finishing Zero calibration, at this moment magnetic levels instrument group is placed on the hopper of weighing/feed bin horizontal plane, the perhaps uniform hopper of the weighing/same level height in the feed bin side place that sticks on, be advisable in loading procedure, to be convenient to real-time monitored, prepare to load demarcation then.
(2) high-ranking officers' lifting jack of claiming device places by the platform of exerting pressure that calibrated load cell places or vertical corresponding bottom welding forms of the vertical corresponding bottom of platform of exerting pressure, revolve and rise lifting jack and make push rod upwards claim the portal frame of device to apply certain pretightning force to the school, to guarantee that in the pretension process lifting jack is vertically stressed, avoid lifting jack to produce deflection.Up revolve by required loading force size then and rise lifting jack portal frame is loaded downwards, in the range ability of being weighed by the school electronic scale by 25% of full scale, 50%, 75%, 100% evenly loads, observe the horizontal situation of the hopper/feed bin of weighing simultaneously by the level meter group, avoid the generation of unbalance loading situation, guarantee that the power that loads all vertically is applied on the calibrated load cell of the platform bottom of exerting pressure or the platform of exerting pressure that forms by the bottom welding all vertically is applied on the calibrated load cell downwards, until adding load reach by the school electronic scale range upper limit, add load and contain the school and claim general assembly (TW) with the standard LOAD CELLS, then electronic scale is carried out full scale and demarcates.
(3) finish the electronic scale full scale and demarcate after, slowly unload and observe by school electronic scale weight displayed value and claim the corresponding situation that the device standard is weighed displayed value with the school.Until being discharged to zero load, confirm to be shown whether be zero by the school electronic scale, if the non-vanishing Zero calibration that then carries out again.
(4) repeat the above-mentioned 2-3 step, till weighed by the school electronic scale displayed value 25%, 50%, 75%, 100% linearity and precision in range ability satisfy product precision or design accuracy and require.
(5) respectively at 50% the range and carry out two groups of tests near 100% the range of weighing of weighing, every group is repeated 3 times at least.Before each test, should transfer to null position with claiming, if the hopper weighing-appliance have automatic balancing or zero point tracking means, should move during test.For same load, repeatedly weighing gained result's is poor, should be not more than the absolute value of these hopper weighing limits of error, can finish the demarcation of electronic scale.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention has from start to finish avoided the generation of weighting platform unbalance loading in calibration process, has improved the qualification rate that electronic scale is once demarcated.
2, this school claims device to adopt method of substitution that electronic scale is demarcated required standard weights to be transformed into the standard mechanical power easily that applies: by each input results and result's sum total of each sensor correspondence on standard LOAD CELLS and the weighting display instrument, the size that accurately shows the loading force that lifting jack applies, realized the accurate metering of mechanical force, replace counterweight to realize the demarcation that hopper is claimed as normal loading, greatly reduce people's labour intensity, not only safe and reliable the but also work efficiency that makes simple to operate improves greatly.
3, load at the uniform velocity, reliably by the lifting jack application of force, and afterburning controlled amount.
4, portal frame and the platform of exerting pressure are gathered materials on the spot at the scene, make on the spot, are installed, and can use repeatedly.
5, magnetic levels instrument, lifting jack and school claim to be used in combination behind the scene with standard LOAD CELLS and the equal monomer keeping of weighting display instrument transportation, have avoided large-scale lifting.
6, the school claims to use the standard LOAD CELLS, and the range ability of weighing of each can be selected by several scopes such as 0-1t, 0-5t, 0-10t, and corresponding weighting display instrument only need one can be general.After carrying out periodic verification, can repeatedly use repeatedly, convenient, flexible, save cost.
7, can adapt to the narrow and small restriction in on-the-spot place, easy to use.
8, the magnetic levels instrument can be used as hopper when claiming to install the hopper horizontal detection use.
9, the present invention is applicable to debugging and the maintenance demarcation that all metal construction hoppers claim.
Description of drawings
Fig. 1 is the device use figure of one embodiment of the invention;
Fig. 2 is magnetic levels instrument structural drawing of the present invention;
Fig. 3 is the distribution vertical view of platform of respectively exerting pressure among Fig. 1;
Among the figure: 1-magnetic levels instrument, 2-portal frame, 3-magnetic levels instrument connect flexible pipe, 4-cushion block, 5-lifting jack, 6-school and claim to be with plastic tube, 12-magnetic bases, the 13-hose adapter of scale with exert pressure platform, 8-calibrated load cell, 9-brace summer or ground, 10-hopper/feed bin, 11-of standard LOAD CELLS, 7-.
Embodiment
For understanding the present invention better, the invention will be further described below in conjunction with drawings and Examples.
Referring to Fig. 1, Fig. 2, Fig. 3, the hopper of band hopper/feed bin horizontal detection of implementing according to present embodiment claims the school to claim device, comprises that mainly magnetic levels instrument 1, portal frame 2, magnetic levels instrument connect flexible pipe 3, cushion block 4, lifting jack 5, school and claim to reach a weighting display instrument that matches by four standard LOAD CELLS 6 with standard LOAD CELLS 6, the platform 7 of exerting pressure; Wherein, portal frame 2 is fixedlyed connected with brace summer or ground 9, lifting jack 5 is placed in the below, horizontal gird center of portal frame 2, places the thick cushion block of 20~60cm 4 between portal frame 2 and the lifting jack 5, to regulate the distance between the lifting jack of placing in portal frame 2 and cushion block 4 belows 5; Lifting jack 5 vertically vertically is placed on the school and claims to use on the upper surface of standard LOAD CELLS 6, and the school claims to be the platform 7 of exerting pressure with the below of standard LOAD CELLS 6; As shown in Figure 2, magnetic levels instrument 1 mainly comprises magnetic bases 12 and the plastic tube 11 of the vertical band scale that is placed on the upper end open on this base and the hose adapter 13 that the magnetic bases 12 horizontal ends left and right sides arrange respectively; As shown in Figure 3, connect four jiaos of horizontal plane that flexible pipe 3 connects and be distributed in hopper/feed bin 10 by the magnetic levels instrument between each level meter 1.Magnetic levels instrument connection flexible pipe 3 constitutes the level meter group that sealing is connected in series by hose adapter 13 with four magnetic levels instrument 1, the stress balance situation of real-time follow-up, detection weighting platform.
Weighting display instrument is placed on outside above-mentioned each parts, observes when being convenient to debug to show the result; Described weighting display instrument mainly comprises 4~8 sensor input channels, central controller, has guidance panel and a display screen of each function button; Each sensor input channel and a standard LOAD CELLS phase configuration; By the function button on the guidance panel central controller is carried out parameter and set, and by the gravimetric value of different each sensor input of function button demonstration capable of circulation of operation and the general assembly (TW) of all sensors input thereof.Civil time, select wherein 4 sensor input channels and 4 standard LOAD CELLS phase configuration.
Single school claims to be selected from 0-1t, 0-5t, four scopes of 0-10t, 0-15t with the range ability of weighing of standard LOAD CELLS 6.
Calibrated load cell 8 is the press-down type load sensor.
Portal frame 2 links to each other with brace summer or ground 9 by welding or by bolt.
Lifting jack 5 upwards produces acting forces to portal frame 2, and portal frame 2 produces loading forces to calibrated load cell 8 downwards, and this school claims device that electronic scale is demarcated required standard weights to be transformed into the standard mechanical power easily that applies thus.
It is corresponding that the tricks that described school claims device and on-the-spot hopper claim to design the number of calibrated load cell 8 of use, can be many covers; Hopper/feed bin 10 designs by four LOAD CELLS usually in 10 4 sides uniform unsettled supports in the outside of hopper/feed bin owing to weigh, so it is uniform in the outside, four sides of the hopper/feed bin 10 of weighing that the present embodiment lieutenant colonel claims that device also is made into quadruplet, the quadruplet school claims device and exerts pressure platform 7 following distribution on hopper/feed bin 10:
Weigh when the upper surface of the trailing arm of calibrated load cell 8 top braces hopper/feed bins 10 usefulness is the plane on hopper/feed bin 10, the upper surface of this original trailing arm of general using is as the platform 7 of exerting pressure of 5 pairs of calibrated load cells 8 of lifting jack, as shown in Figure 3, four sides that four trailing arms are separately positioned on hopper/feed bin 10 are as exerting pressure platform 7, and each trailing arm along continuous straight runs extends to the outside of each side; Claim device directly to be placed on each trailing arm respectively in the quadruplet school, at this moment each trailing arm upper surface is the supporting surface of standard LOAD CELLS 6, it simultaneously also is the strong point of hopper/feed bin 10 of weighing, it is by realizing that with the calibrated load cell 8 of following corresponding installation " unsettled " of symmetrical heavy burder bucket/feed bin 10 support, each school claims device and corresponding LOAD CELLS 8 by verification up and down vertical opposite like this, and the direct transmission of being convenient to power has reduced the exert pressure workload of platform 7 of special making again.If claiming to design by three calibrated load cells 8, on-the-spot hopper arranges the weighing system of forming in the outside, wherein three sides of hopper/feed bin 10, select for use three cover schools to claim device to arrange in the outside, described three sides of hopper/feed bin 10 so, and with hopper/feed bin 10 on respectively claim calibrated load cell 8 on this outside, three sides the strong point up and down corresponding distribution get final product; Arrange identical with aforesaid way during overlap more.
The upper surface of original trailing arm is because being provided with reinforcement on the hopper/feed bin 10 of weighing, various on-plane surface factors such as diagonal rib can not directly be placed the school when claiming device, need to make separately, the installation platform 7 of exerting pressure, at this moment can select that [above channel-section steel (deciding on hopper weighing tonnage size) or the steel plate of 10# made the little trailing arm that a plurality of upper surfaces are the plane for use, each side that then directly will these a plurality of little trailing arms be welded on the hopper/feed bin 10 of weighing forms the platform 7 of exerting pressure, at this moment, the platform 7 of exerting pressure that this welding forms is the supporting surface of standard LOAD CELLS 6, also is the platform that 5 pairs of calibrated load cells 8 of lifting jack are exerted pressure simultaneously.When platform 7 is exerted pressure in welding, make each the little trailing arm that forms the platform 7 of exerting pressure uniform in the outside, four sides of the hopper/feed bin 10 of weighing symmetry, and each little trailing arm will be in same level height, and the horizontal support face of each little trailing arm is wanted level, and it is firm, reliable that welding is wanted.At this moment, because each little trailing arm of the platform 7 of exerting pressure that the trailing arm of each calibrated load cell 8 top braces hopper/feed bins 10 usefulness and welding form is not at same horizontal level, thereby each school claims that device should be vertical corresponding up and down with each little trailing arm of the platform 7 of exerting pressure of independent making, installation, and can not be up and down vertical opposite with calibrated load cell 8.Arrange the weighing system of forming in the outside, three sides therein if on-the-spot hopper claims to design by three calibrated load cells 8, select for use so three cover schools claim device place in the outside, described three sides of hopper/feed bin 10 and with the platform 7 vertical corresponding distribution up and down of exerting pressure of welding formation; Arrange identical with aforesaid way during overlap more.
School of the present invention claims the principle of work of device device to be: using this invention that hopper is claimed to carry out timing signal, it is corresponding that concrete tricks and on-the-spot hopper claim to design the number of calibrated load cell 8 of use, generally select for use three or the described school of quadruplet claim device, utilize principle and the fluid level principle of acting force and reacting force, produce upwards acting force with 5 pairs of portal frames of lifting jack 2, this power reacts to downwards on standard LOAD CELLS 6 and the calibrated load cell 8 simultaneously, and each input results and the result that pass through each standard LOAD CELLS 6 correspondence on standard LOAD CELLS 6 and the weighting display instrument sum up, the size that accurately shows power that lifting jack applies replaces counterweight to realize the demarcation that hopper is claimed as normal loading.Observe the horizontal situation of the hopper/feed bin 10 of weighing in addition by four jiaos of uniform level meters of hopper/feed bin 10 horizontal planes 1, to avoid the generation of weighting platform unbalance loading situation.
Above-mentioned school claims the school of device to claim method to be:
(1) after hopper claims whole installations, before electronic scale demarcated, at first the magnetic levels instrument group that four magnetic levels instrument 1 are formed is placed on hopper/feed bin 10 horizontal planes of weighing, and uniform four jiaos of hopper/feed bin 10 horizontal planes, the plastic tube 11 that passes through the band scale of upper end open with funnel injects an amount of water in the level meter group.Whether the installation that the real-time scale registration by water in each level meter 1 detects the hopper/feed bin 10 of weighing level, if out-of-level, then carries out necessary adjustment till being up to the standard.Then each magnetic levels instrument 1 is all taken off from the hopper/feed bin 10 of weighing, electronic scale is carried out Zero calibration, again each magnetic levels instrument 1 is reapposed on the hopper/feed bin 10 of weighing after finishing Zero calibration, at this moment magnetic levels instrument group is placed on hopper/feed bin 10 horizontal planes of weighing, the perhaps uniform same level height place, hopper/feed bin 10 sides of weighing that sticks on, be advisable in loading procedure, to be convenient to real-time monitored, prepare to load demarcation then.
(2) high-ranking officers' lifting jack 5 of claiming device places by the platform 7 of exerting pressure that calibrated load cell 8 places or vertical corresponding bottom welding forms of the platform 7 vertical corresponding bottoms of exerting pressure, revolve and rise lifting jack 5 and make push rod upwards claim the portal frame 2 of device to apply certain pretightning force to the school, to guarantee that in the pretension process lifting jack 5 is vertically stressed, avoid lifting jack 5 to produce deflection.Up revolve by required loading force size then and rise lifting jack 5 portal frame 2 is loaded downwards, in the range ability of being weighed by the school electronic scale by 25% of full scale, 50%, 75%, 100% evenly loads, observe the horizontal situation of the hopper/feed bin 10 of weighing simultaneously by the level meter group, avoid the generation of unbalance loading situation, guarantee that the power that loads all vertically is applied on the calibrated load cell 8 of platform 7 bottoms of exerting pressure or the platform 7 of exerting pressure that forms by the bottom welding all is applied on the calibrated load cell 8 downward vertically, until adding load reach by the school electronic scale range upper limit, add load and contain the school and claim general assembly (TW) with standard LOAD CELLS 6, then electronic scale is carried out full scale and demarcates.
(3) finish the electronic scale full scale and demarcate after, slowly unload and observe by school electronic scale weight displayed value and claim the corresponding situation that the device standard is weighed displayed value with the school.Until being discharged to zero load, confirm to be shown whether be zero by the school electronic scale, if the non-vanishing Zero calibration that then carries out again.
(4) repeat the above-mentioned 2-3 step, till weighed by the school electronic scale displayed value 25%, 50%, 75%, 100% linearity and precision in range ability satisfy product precision or design accuracy and require.
(5) respectively at 50% the range and carry out two groups of tests near 100% the range of weighing of weighing, every group is repeated 3 times at least.Before each test, should transfer to null position with claiming, if the hopper weighing-appliance have automatic balancing or zero point tracking means, should move during test.For same load, repeatedly weighing gained result's is poor, should be not more than the absolute value of these hopper weighing limits of error, can finish the demarcation of electronic scale.
Above disclosed only is preferred embodiment of the present invention, and the equivalence of doing according to the present invention changes, and still belongs to protection scope of the present invention.

Claims (10)

1. the hopper of band hopper/feed bin horizontal detection claims the school to claim device, it is characterized in that mainly comprising lifting jack, portal frame, the magnetic levels instrument, the magnetic levels instrument connects flexible pipe, the platform of exerting pressure, the standard LOAD CELLS, weighting display instrument, wherein, portal frame is fixedlyed connected with brace summer or ground by welding or bolt, the lower end, horizontal gird center of portal frame arranges lifting jack, lifting jack vertically is vertically set on the school and claims to use on the upper surface of standard LOAD CELLS, the school claims to be the platform of exerting pressure with the below of standard LOAD CELLS, the thick cushion block of 20~60cm is set between portal frame and the lifting jack; The magnetic levels instrument mainly comprises magnetic bases and vertically is arranged on the plastic tube of the band scale of the upper end open on this base, connects the level meter group that flexible pipe connects and composes the sealing serial connection by the magnetic levels instrument between each level meter; The platform of exerting pressure is separately positioned on each outside, side of hopper/feed bin, and each trailing arm along continuous straight runs extends to the outside of each side; Weighting display instrument and each standard LOAD CELLS phase configuration and outer being located at make things convenient for the observations place; It is corresponding that the tricks that described school claims device and on-the-spot hopper claim to design the calibrated load cell number of use; Described calibrated load cell is the press-down type load sensor.
2. school according to claim 1 claims device, it is characterized in that described weighting display instrument mainly comprises 4~8 sensor input channels, central controller, has guidance panel and a display screen of each function button; Each sensor input channel and a standard LOAD CELLS phase configuration; By the function button on the guidance panel central controller is carried out parameter and set, and can show the gravimetric value of each sensor input and the general assembly (TW) of all sensors input in the display screen cocycle by operating different function buttons.
3. school according to claim 2 claims device, it is characterized in that described weighting display instrument only 4 sensor input channels and 4 standard LOAD CELLS phase configuration, by gravimetric value and 4 general assembly (TW)s that sensor is imported of operating each sensor input of different function buttons demonstration capable of circulation.
4. school according to claim 3 claims device, it is characterized in that the magnetic levels instrument connects hose adapter that flexible pipe arranges respectively by each magnetic levels instrument magnetic bases horizontal ends left and right sides four magnetic levels instrument are constituted the level meter group of sealing serial connection, each level meter is distributed in four jiaos of horizontal plane of hopper/feed bin.
5. claim device according to the described school of one of claim 1-4, it is characterized in that the upper surface of each trailing arm is the described platform of exerting pressure when upper surface that the trailing arm of hopper/feed bin be used for is supported at each calibrated load cell top, side of hopper/feed bin is the plane; At this moment, using this school to claim device that hopper is claimed to carry out timing signal, the school claims device to pass through each trailing arm and its below calibrated load cell is up and down vertical opposite.
6. school according to claim 5 claims device, it is characterized in that by the described school of quadruplet claim device in the outside of four sides of hopper of weighing uniform and with the corresponding distribution up and down of the strong point of calibrated load cell.
7. claim device according to the described school of one of claim 1-4, it is characterized in that when upper surface that the trailing arm of hopper/feed bin be used for is supported at each calibrated load cell top, side of hopper/feed bin is on-plane surface, being made into the upper surface by channel-section steel or steel plate is that each side that a plurality of little trailing arm on plane directly is welded on hopper/feed bin forms the described platform of exerting pressure, a plurality of little trailing arms need in each outside, side symmetry of hopper/feed bin uniform, and each little trailing arm will be in same level height, and the horizontal support face of each little trailing arm is wanted level; At this moment, using this device that hopper is claimed to carry out timing signal, the school claims the little trailing arm of device and each vertical corresponding up and down.
8. school according to claim 7 claims device, it is characterized in that the described school of quadruplet claims device to be distributed on to weigh on each little trailing arm of the platform of exerting pressure that the outside welding of four sides of hopper forms, and with the vertical corresponding distribution up and down of each little trailing arm.
9. claim device according to one of claim 1-4 or 6 or 8 described schools, it is characterized in that the range ability of weighing of single standard LOAD CELLS is selected from 0-1t, 0-5t, four scopes of 0-10t, 0-15t.
10. the described school of one of claim 1-9 claims the school of device to claim method, it is characterized in that comprising the steps:
(1) after hopper claims whole installations, before hopper claimed to demarcate, at first the magnetic levels instrument group that four magnetic levels instrument are formed is placed on hopper/feed bin horizontal plane, and it is uniform at hopper/four jiaos of feed bin horizontal planes, the plastic tube that passes through the band scale of upper end open with funnel injects an amount of water in the level meter group, whether the installation that the real-time scale registration by water in each level meter detects hopper/feed bin level, if out-of-level, then carry out necessary adjustment till being up to the standard; Then each magnetic levels instrument is all taken off from hopper/feed bin, hopper is claimed to carry out Zero calibration, again each magnetic levels instrument is reapposed on hopper/feed bin after finishing Zero calibration, at this moment magnetic levels instrument group is placed on hopper/feed bin horizontal plane, the perhaps uniform hopper/same level height in the feed bin side place that sticks on, be advisable in loading procedure, to be convenient to real-time monitored, prepare to load demarcation then;
(2) high-ranking officers' lifting jack of claiming device places by the platform of exerting pressure that calibrated load cell places or vertical corresponding bottom welding forms of the vertical corresponding bottom of platform of exerting pressure, revolve and rise lifting jack and make push rod upwards claim the portal frame of device to apply certain pretightning force to the school, to guarantee that in the pretension process lifting jack is vertically stressed, avoid lifting jack to produce deflection; Up revolve by required loading force size then and rise lifting jack portal frame is loaded downwards, in the range ability of being weighed by the school hopper by 25% of full scale, 50%, 75%, 100% evenly loads, observe the horizontal situation of hopper/feed bin simultaneously by the level meter group, avoid the generation of unbalance loading situation, guarantee that the power that loads all vertically is applied on the calibrated load cell of the platform bottom of exerting pressure, perhaps the platform of exerting pressure that forms by the bottom welding all vertically is applied on the calibrated load cell downwards, until adding load reach by the school hopper weighing journey upper limit, add load and contain the school and claim then hopper to be claimed general assembly (TW) with the standard LOAD CELLS to carry out full scale and demarcate;
(3) finish hopper and claim that full scale is demarcated after, slowly unload and observe by the school hopper displayed value that weighs and claim the corresponding situation that the device standard is weighed displayed value with the school; Until being discharged to zero load, confirm to be claimed to show whether be zero by the school hopper, if the non-vanishing Zero calibration that then carries out again;
(4) repeat above-mentioned (2)-(3) steps, till weighed by the school hopper displayed value 25%, 50%, 75%, 100% linearity and precision in range ability satisfy product precision or design accuracy and require;
(5) respectively at 50% the range and carry out two groups of tests near 100% the range of weighing of weighing, every group is repeated 3 times at least; Before each test, should transfer to null position with claiming, if the hopper weighing-appliance have automatic balancing or zero point tracking means, should move during test; For same load, repeatedly weighing gained result's is poor, should be not more than the absolute value of these hopper weighing limits of error, can finish the demarcation that hopper claims.
CN 201110156919 2011-06-13 2011-06-13 Scale calibrating device and scale calibrating method for hopper scale with hopper or hopper bin horizontal detection CN102353438B (en)

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102721413B (en) * 2012-06-29 2014-03-05 武汉一冶钢结构有限责任公司 Simulated positioning method for storage tank deep-well pump installation for total-pressure type liquefied petroleum gas (LPG) transport ship
CN103438976B (en) * 2013-07-18 2016-03-30 江苏联峰能源装备有限公司 A kind of Novel steelmaking material loading bunker scale rapid detection system and method
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CN105277268B (en) * 2014-06-25 2018-11-09 中联重科股份有限公司 Moving bin cylinder school scale system and school scale method
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CN109668616A (en) * 2018-11-06 2019-04-23 杭州钱江称重技术有限公司 One kind is automatically without weight calibrating device
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101363750A (en) * 2008-07-23 2009-02-11 仇关根 Large tonnage material level electronic scale and correcting method of weigh without counter poise
CN101387539A (en) * 2008-09-09 2009-03-18 中冶长天国际工程有限责任公司 Weighing ore groove level meter demarcating apparatus
CN101526391A (en) * 2008-11-17 2009-09-09 珠海市长陆工业自动控制系统有限公司 Digital hopper-balance checker
CN101865750A (en) * 2010-06-22 2010-10-20 胡卓林 Portable calibrating device for pull pressure sensor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5737018B2 (en) * 1977-12-27 1982-08-07
AT413763B (en) * 2003-04-04 2006-05-15 Voest Alpine Ind Anlagen Method and device for calibrating a weighing device, in particular a weigh bunker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101363750A (en) * 2008-07-23 2009-02-11 仇关根 Large tonnage material level electronic scale and correcting method of weigh without counter poise
CN101387539A (en) * 2008-09-09 2009-03-18 中冶长天国际工程有限责任公司 Weighing ore groove level meter demarcating apparatus
CN101526391A (en) * 2008-11-17 2009-09-09 珠海市长陆工业自动控制系统有限公司 Digital hopper-balance checker
CN101865750A (en) * 2010-06-22 2010-10-20 胡卓林 Portable calibrating device for pull pressure sensor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP昭54-89663A 1979.07.16

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