CN102305750B - System and method for determining open water of iron ores - Google Patents
System and method for determining open water of iron ores Download PDFInfo
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- CN102305750B CN102305750B CN 201110128035 CN201110128035A CN102305750B CN 102305750 B CN102305750 B CN 102305750B CN 201110128035 CN201110128035 CN 201110128035 CN 201110128035 A CN201110128035 A CN 201110128035A CN 102305750 B CN102305750 B CN 102305750B
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Abstract
The invention discloses a system for determining open water of iron ores. The system is characterized by comprising a grab bucket, a metering hopper device, a belt type vacuum suction filtration device, a metering water tank, a condensed classification machine and a control system, wherein the metering hopper device comprises a support, a hopper and a metering sensor; the hopper is provided with an ear plate; the metering sensor is fixedly arranged on the support; the ear plate is arranged on the metering sensor; the bottom of the hopper is coupled with a bottom cover which is connected with an opening/closing driving device; and the metering sensor and the opening/closing driving device are connected with the control system respectively. The invention has the advantages that: water-containing iron ores which arrive at port just now are directly sampled to the system for determining the open water of the iron ores, so the open water in the iron ores can be prevented from losing in links such as unloading, transshipment and the like; moreover, after the open water and the iron ores are separated by the belt type vacuum suction filtration device, the content of the open water in the iron ores can be determined and is deducted from the total weight of the iron ores, so that the cargo shortfall of consignees is greatly reduced and even eliminated.
Description
Technical field
The present invention relates to the determination of moisture of iron ore, relate in particular to a kind of mensuration system and assay method of open water of iron ores.
Background technology
Iron ore just has free water and separates out when moisture surpasses its absorption saturation value, be called traditionally the open fire phenomenon, and the handing-over of iron ore weight is generally all take dry state as benchmark.At present the computing method of iron ore dry state weight are: at iron ore during to the port, weigh first the general assembly (TW) of moisture iron ore, then get a part of sample and ironstone sample is carried out the detection of moisture to the laboratory by standard ISO 3087-1998 " mensuration of iron ore-delivery batch moisture ", and in the iron ore general assembly (TW), deduct the weight that obtains the dry state iron ore by the moisture of measuring.But the moisture that contains the saturated adsorption water section in the just iron ore that standard ISO 3087-1998 measures, and much contain open fire in the iron ore of at present import, iron ore open fire in the links such as unloading, storage, transhipment can run off, can not get by sampled machine, cause the moisture result of the ironstone sample of getting after detecting greatly more on the low side than its actual moisture, produce the goods missing-ton, cause serious economic loss for the enterprise that receives.
Summary of the invention
Technical matters to be solved by this invention provides a kind of content that detects open fire in the iron ore, with mensuration system and the assay method of the open water of iron ores that greatly reduces recipient goods missing-ton.
The present invention solves the problems of the technologies described above the technical scheme that adopts: a kind of mensuration system of open water of iron ores, comprise grab bucket, the weigh-hatching plant device, belt vacuum filtration device, the metering tank, contracting device and control system, described weigh-hatching plant device comprises support, hopper and gage probe, be provided with otic placode on the described hopper, described gage probe is fixedly installed on the described support, described otic placode rests on the described gage probe, the bottom of described hopper is connected with bottom, be connected with open/close driving device on the described bottom, described gage probe is connected with open/close driving device with described control system and is connected.
Described open/close driving device comprises the first hydraulic cylinder and the first driving stem, described the first hydraulic cylinder is coupling on described hopper, described the first driving stem and described the first hydraulic cylinder sealing are slidingly matched, and the end of described the first driving stem and described bottom are coupling.
Be provided with anti whip device on the described weigh-hatching plant device, described anti whip device comprises the first pole, the second pole, connecting rod and lever driving device, described the first pole, the second pole and hopper are spaced, described pitman shaft is connected on described the first pole, one end and the described hopper of described connecting rod are coupling, described lever driving device is connected with described control system, described lever driving device comprises the second hydraulic cylinder and the second driving stem, described the second hydraulic cylinder is coupling on described the second pole, described the second driving stem and described the second hydraulic cylinder sealing are slidingly matched, and the end of described the second driving stem and the other end of described connecting rod are coupling.
Described belt vacuum filtration device comprises transmission beaming roller group, belt, vacuum tank, the current house steward, vacuum pump and moisture trap, described weigh-hatching plant device is positioned at the top of described belt, described vacuum tank is positioned at the below of described belt, described vacuum tank is connected with described current house steward by the current arm, be provided with the reciprocal limit driving device that drives vacuum tank and belt synchronous operation on the described vacuum tank, described vacuum pump is connected with moisture trap by transfer valve and is connected with described current house steward, described metering tank is arranged on described current house steward's below, be provided with leaking hole on the described belt, described vacuum pump, transfer valve, moisture trap is connected with described control system respectively with the limit driving device of being connected.
Described reciprocal limit driving device comprises track, approach switch, photoelectric sensor and vacuum tank driving mechanism, described vacuum tank and described track sliding are movingly, described approach switch and photoelectric sensor are fixedly installed on respectively the two ends of described track, described approach switch, photoelectric sensor and vacuum tank driving mechanism are connected with described control system and are connected, and described vacuum tank driving mechanism is motor-driven mechanism, hydraulic drive mechanism or air pressure driving mechanism.
Be provided with the idler roller group on the described belt.
Described metering tank comprises tank and laser sensor, and described laser sensor is arranged on the described tank, is provided with solenoid valve on the freeing port of described tank, and described laser sensor is connected with solenoid valve with described control system and is connected.
Described contracting device is for surely than contracting device.
A kind of assay method that utilizes described mensuration system iron ore to be carried out the open fire determination of moisture, its detailed process is:
(1), the mensuration system is placed on the position of berth, discharge jetty level, the iron ore that then contains open fire with the grab bucket crawl is put into hopper, and measures the general assembly (TW) G that contains the open fire iron ore in the hopper by gage probe
Always
(2), open the bottom of feed hopper bottom, the iron ore that will contain open fire is put into belt vacuum filtration device, and iron ore is separated with open fire, the open fire after the separation imports in the metering tank, and weighs the weight G of open fire
Open fire, the iron ore after the separation is transported to and carries out division in the contracting device;
(3), the ironstone sample after the division carried out the determination of moisture of saturated adsorption water, measure the percentage composition of saturated planar water in the iron ore;
(4), by formula:
Obtain containing the comprehensive moisture of open fire iron ore.
A kind of assay method that utilizes described mensuration system iron ore to be carried out the open fire determination of moisture, its detailed process is:
(1), the mensuration system is placed on the position of berth, discharge jetty level, then control the second Driven by Hydraulic Cylinder the second driving stem with hopper jack-up, make hopper break away from gage probe;
(2), the iron ore that contains open fire with grab bucket crawl puts into hopper, then controls the second Driven by Hydraulic Cylinder the second driving stem and hopper is descended and rests on the gage probe, measures the general assembly (TW) G that contains the open fire iron ore in the hopper by gage probe
Always
(3), open the bottom of feed hopper bottom, the iron ore that will contain open fire is put into belt vacuum filtration device, and iron ore is separated with open fire, the open fire after the separation imports in the metering tank, and weighs the weight G of open fire
Open fire, the iron ore after the separation is transported to and carries out division in the contracting device;
(4), the ironstone sample after the division carried out the determination of moisture of saturated adsorption water, measure the percentage composition of saturated planar water in the iron ore;
(5), by formula:
Obtain containing the comprehensive moisture of open fire iron ore.
In the said method, the moisture of saturated planar water can be measured by standard ISO 3087-1998 " mensuration of iron ore-delivery batch moisture " in the iron ore.
Compared with prior art, advantage of the present invention be with just to the moisture iron ore direct sample at port in this mensuration system, can prevent in the iron ore open fire the unloading, run off in the links such as transhipment, and by belt vacuum filtration device with open fire with after iron ore separates, can measure the content of open fire in the iron ore, the comprehensive moisture of detected iron ore (open fire content+saturated adsorption liquid water content) and its actual moisture are approached or conform to, and in the general assembly (TW) of iron ore, deduct, greatly reduce even eliminated the goods missing-ton of recipient, retrieved the economic loss of the enterprise that receives; In addition, be provided with anti whip device on the weigh-hatching plant device, during the Iron Release ore, can prevent from gage probe is impacted the damage gage probe in grab bucket in the hopper.
Description of drawings
Fig. 1 is the structural representation that the present invention measures system;
Fig. 2 is the structural representation of weigh-hatching plant device of the present invention;
Fig. 3 is the vertical view of Fig. 2.
Embodiment
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
As shown in the figure, a kind of mensuration system of open water of iron ores, comprise grab bucket 1, weigh-hatching plant device 2, belt vacuum filtration device, the metering tank, fixed than contracting device 3 and control system 4, weigh-hatching plant device 2 comprises support 21, hopper 22, gage probe 23, the first pole 24, the second pole 25 and connecting rod 26, be wholely set otic placode 221 on the hopper 22, gage probe 23 is fixedly installed on the support 21, otic placode 221 rests on the gage probe 23, the bottom of hopper 22 is connected with bottom 222, be connected with open/close driving device on the bottom 222, open/close driving device comprises the first hydraulic cylinder 27 and the first driving stem 271, the first hydraulic cylinder 27 is coupling on hopper 22, the first driving stem 271 and the first hydraulic cylinder 27 sealed sliding are movingly, the end of the first driving stem 271 and bottom 222 are coupling, the first pole 24, the second pole 25 and hopper 22 are spaced, connecting rod 26 is coupling on the first pole 24, one end and the hopper 22 of connecting rod 26 are coupling, be connected with the second hydraulic cylinder 28 on the second pole 25, the second driving stem 281 and the second hydraulic cylinder 28 sealed sliding are movingly, the other end of the end of the second driving stem 281 and connecting rod 26 is coupling, the first hydraulic cylinder 27, the second hydraulic cylinder 28 is connected with gage probe and is connected with control system 4 respectively, belt vacuum filtration device comprises belt 5, transmission beaming roller group 51, vacuum tank 52, current house steward 53, vacuum pump 54 and moisture trap 55, hopper 22 is positioned at the top of belt 5, vacuum tank 52 is positioned at the below of belt 5, be provided with the leaking hole (not shown) on the belt 5, be provided with idler roller group 50 on the belt 5, vacuum tank 52 is connected with current house steward 53 by current arm 531, be provided with the reciprocal limit driving device that drives vacuum tank 52 and belt 5 synchronous operations on the vacuum tank 52, back and forth limit driving device comprises track 56, approach switch 57, photoelectric sensor 58 and vacuum tank driving mechanism (not shown), vacuum tank 52 is slidingly matched with track 56, approach switch 57 and photoelectric sensor 58 are fixedly installed on respectively the two ends of track 56, vacuum pump 54 is connected with moisture trap respectively and is connected with current house steward 53 by transfer valve 59, vacuum pump 54, transfer valve 59, moisture trap 55, approach switch 57, photoelectric sensor 58 is connected with control system 4 with vacuum tank driving mechanism (not shown) and is connected, the metering tank comprises tank 6 and laser sensor 7, tank 6 is arranged on current house steward 53 below, laser sensor 7 is arranged on the tank 6, be provided with solenoid valve 8 on the freeing port of tank 6, laser sensor 7 is connected with solenoid valve and is connected with control system 4 respectively.
In the described mensuration of above-described embodiment system, the vacuum tank driving mechanism can be motor-driven mechanism, hydraulic drive mechanism or air pressure driving mechanism commonly used in Mechanical Driven and the transmission field; Motor-driven mechanism can be that motor drives the vacuum tank operation by driving pulley assembly; Hydraulic drive mechanism can be common Driven by Hydraulic Cylinder Component driver vacuum tank operation; The air pressure driving mechanism can be common air cylinder driven Component driver vacuum tank operation.
Utilize the said determination system iron ore to be carried out the assay method of open fire determination of moisture, its detailed process is:
(1), the mensuration system is placed on the position of berth, discharge jetty level, then control the second hydraulic cylinder 28 and drive the second driving stem 281 with hopper 22 jack-up, make hopper 22 break away from gage probes 23;
(2), grasp the iron ore that contains open fire with grab bucket 1 and put into hopper 22, then control the second hydraulic cylinder 28 and drive the second driving stem 281 and hopper 22 is descended and rest on the gage probe 23, measure the general assembly (TW) G that contains the open fire iron ore in the hopper 22 by gage probe 23
Always
(3), open the bottom 222 of hopper 22 bottoms, the iron ore that will contain open fire is put into belt vacuum filtration device, and iron ore is separated with open fire, the open fire after the separation imports in the tanks 6 by current house steward 53, and weighs the weight G of open fire
Open fire, the iron ore after the separation is transported to fixed than carrying out division in the contracting device 3;
(4), the ironstone sample after the division is carried out the determination of moisture of saturated adsorption water by the standard ISO 3087-1998 mensuration of moisture " iron ore-delivery crowd ", measure the percentage composition of saturated planar water in the iron ore;
(5), by formula:
Obtain containing the comprehensive moisture of open fire iron ore.
Claims (9)
1. the mensuration system of an open water of iron ores, comprise grab bucket, the weigh-hatching plant device, belt vacuum filtration device, the metering tank, contracting device and control system, described weigh-hatching plant device comprises support, hopper and gage probe, be provided with otic placode on the described hopper, described gage probe is fixedly installed on the described support, described otic placode rests on the described gage probe, the bottom of described hopper is connected with bottom, be connected with open/close driving device on the described bottom, described gage probe is connected with open/close driving device with described control system and is connected, it is characterized in that described open/close driving device comprises the first hydraulic cylinder and the first driving stem, described the first hydraulic cylinder is coupling on described hopper, described the first driving stem and described the first hydraulic cylinder sealing are slidingly matched, and the end of described the first driving stem and described bottom are coupling.
2. the mensuration system of a kind of open water of iron ores as claimed in claim 1, it is characterized in that being provided with anti whip device on the described weigh-hatching plant device, described anti whip device comprises the first pole, the second pole, connecting rod and lever driving device, described the first pole, the second pole and hopper are spaced, described pitman shaft is connected on described the first pole, one end and the described hopper of described connecting rod are coupling, described lever driving device is connected with described control system, described lever driving device comprises the second hydraulic cylinder and the second driving stem, described the second hydraulic cylinder is coupling on described the second pole, described the second driving stem and described the second hydraulic cylinder sealing are slidingly matched, and the end of described the second driving stem and the other end of described connecting rod are coupling.
3. the mensuration system of a kind of open water of iron ores as claimed in claim 1, it is characterized in that described belt vacuum filtration device comprises transmission beaming roller group, belt, vacuum tank, the current house steward, vacuum pump and moisture trap, described weigh-hatching plant device is positioned at the top of described belt, described vacuum tank is positioned at the below of described belt, described vacuum tank is connected with described current house steward by the current arm, be provided with the reciprocal limit driving device that drives vacuum tank and belt synchronous operation on the described vacuum tank, described vacuum pump is connected with moisture trap by transfer valve and is connected with described current house steward, described metering tank is arranged on described current house steward's below, be provided with leaking hole on the described belt, described vacuum pump, transfer valve, moisture trap is connected with described control system respectively with the limit driving device of being connected.
4. the mensuration system of a kind of open water of iron ores as claimed in claim 3, it is characterized in that described reciprocal limit driving device comprises track, approach switch, photoelectric sensor and vacuum tank driving mechanism, described vacuum tank and described track sliding are movingly, described approach switch and photoelectric sensor are fixedly installed on respectively the two ends of described track, described approach switch, photoelectric sensor is connected with described control system with the vacuum tank driving mechanism and is connected, and described vacuum tank driving mechanism is motor-driven mechanism, hydraulic drive mechanism or air pressure driving mechanism.
5. the mensuration system of a kind of open water of iron ores as claimed in claim 3 is characterized in that being provided with on the described belt idler roller group.
6. the mensuration system of a kind of open water of iron ores as claimed in claim 1, it is characterized in that described metering tank comprises tank and laser sensor, described laser sensor is arranged on the described tank, be provided with solenoid valve on the freeing port of described tank, described laser sensor is connected with solenoid valve with described control system and is connected.
7. the mensuration system of a kind of open water of iron ores as claimed in claim 1 is characterized in that described contracting device is for surely than contracting device.
8. assay method that utilizes mensuration claimed in claim 1 system iron ore to be carried out the open fire determination of moisture is characterized in that its detailed process is:
(1), the mensuration system is placed on the position of berth, discharge jetty level, the iron ore that then contains open fire with the grab bucket crawl is put into hopper, and measures the general assembly (TW) G that contains the open fire iron ore in the hopper by gage probe
Always
(2), open the bottom of feed hopper bottom, the iron ore that will contain open fire is put into belt vacuum filtration device, and iron ore is separated with open fire, the open fire after the separation imports in the metering tank, and weighs the weight G of open fire
Open fire, the iron ore after the separation is transported to and carries out division in the contracting device;
(3), the ironstone sample after the division carried out the determination of moisture of saturated adsorption water, measure the percentage composition of saturated planar water in the iron ore;
(4), by formula:
Obtain containing the comprehensive moisture of open fire iron ore.
9. assay method that utilizes mensuration claimed in claim 2 system iron ore to be carried out the open fire determination of moisture is characterized in that its detailed process is:
(1), the mensuration system is placed on the position of berth, discharge jetty level, then control the second Driven by Hydraulic Cylinder the second driving stem with hopper jack-up, make hopper break away from gage probe;
(2), the iron ore that contains open fire with grab bucket crawl puts into hopper, then controls the second Driven by Hydraulic Cylinder the second driving stem and hopper is descended and rests on the gage probe, measures the general assembly (TW) G that contains the open fire iron ore in the hopper by gage probe
Always
(3), open the bottom of feed hopper bottom, the iron ore that will contain open fire is put into belt vacuum filtration device, and iron ore is separated with open fire, the open fire after the separation imports in the metering tank, and weighs the weight G of open fire
Open fire, the iron ore after the separation is transported to and carries out division in the contracting device;
(4), the ironstone sample after the division carried out the determination of moisture of saturated adsorption water, measure the percentage composition of saturated planar water in the iron ore;
(5), by formula:
Obtain containing the comprehensive moisture of open fire iron ore.
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| CN 201110128035 CN102305750B (en) | 2011-05-18 | 2011-05-18 | System and method for determining open water of iron ores |
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| CN 201110128035 CN102305750B (en) | 2011-05-18 | 2011-05-18 | System and method for determining open water of iron ores |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102589933B (en) * | 2012-03-06 | 2013-07-31 | 天津口岸检测分析开发服务有限公司 | Open water pipeline sampling device |
| CN102590020B (en) * | 2012-03-06 | 2013-10-02 | 天津出入境检验检疫局化矿金属材料检测中心 | Method for determining free water weight in iron ore |
| CN111879662A (en) * | 2020-08-03 | 2020-11-03 | 浙江万里学院 | Weight measurement system and method for open water of iron ore |
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| JP2760054B2 (en) * | 1989-05-25 | 1998-05-28 | 井関農機株式会社 | Anomaly detection device in self-verification system for grain samples |
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| CN2227010Y (en) * | 1995-02-24 | 1996-05-15 | 四川省华兴机械总厂 | Automatic bottom pen-close type charging device |
| CN2814391Y (en) * | 2005-08-12 | 2006-09-06 | 方彰林 | Breaking, condensing and dividing sampling machine |
| CN201421409Y (en) * | 2009-06-11 | 2010-03-10 | 上虞市宏兴机械仪器制造有限公司 | Iron ore sampler |
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Effective date of registration: 20180213 Address after: 315012 Ningbo, Zhejiang, Ma Road, Haishu District No. 9 Patentee after: Ningbo Institute of Inspection and Quarantine Science Technology Address before: 315800 minzhou Road, Beilun District, Ningbo, Zhejiang Province, No. 197 Patentee before: Beilun Entry-Exit Inspection And Quarantine Bureau |