CN102305750A - 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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- CN102305750A CN102305750A CN201110128035A CN201110128035A CN102305750A CN 102305750 A CN102305750 A CN 102305750A CN 201110128035 A CN201110128035 A CN 201110128035A CN 201110128035 A CN201110128035 A CN 201110128035A CN 102305750 A CN102305750 A CN 102305750A
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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 iron ore open fire moisture.
Background technology
Iron ore just has free water and separates out when moisture surpasses its absorption saturation value, be called the open fire phenomenon traditionally, and the handing-over of iron ore weight generally all is benchmark with the dry state.At present iron ore dry state Weight Calculation method is: at iron ore during to the port; Weigh the general assembly (TW) of moisture iron ore earlier; Get a part of sample then and by standard ISO 3087-1998 " mensuration of iron ore-delivery batch moisture " the iron ore sample is carried out the detection of moisture, and in the iron ore general assembly (TW), deduct the weight that obtains the dry state iron ore by the moisture of measuring to the laboratory.But the moisture that contains saturated planar water part in the just iron ore that standard ISO 3087-1998 measures; And much contain open fire in the iron ore of import at present; Iron ore open fire in links such as unloading, storage, transhipment can run off; Can not be got by sampler; Cause the moisture result after the iron ore sample detection of getting more on the low side greatly than its actual moisture; Produce the goods missing-ton, cause serious economy 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 the mensuration system and the assay method of the iron ore open fire moisture that reduces recipient goods missing-ton greatly.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of mensuration system of iron ore open fire moisture; Comprise grab bucket; The weigh-hatching plant device; Belt vacuum filtration device; The metering tank; Division machine and control system; Described weigh-hatching plant device comprises support; Hopper and gage probe; Described hopper is provided with otic placode; 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 the driven for opening and closing device on the described bottom, described gage probe is connected with described control system respectively with the driven for opening and closing device.
Described driven for opening and closing device comprises first hydraulic cylinder and first driving stem; Described first hydraulic cylinder is coupling on described hopper; Described first driving stem and described first hydraulic cylinder sealing are slidingly matched, and the end of described first driving stem and described bottom are coupling.
Described weigh-hatching plant device is provided with anti whip device; Described anti whip device comprises first pole; Second pole; Connecting rod and lever driving device; Described first pole; Second pole and hopper are spaced; Described pitman shaft is connected on described 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 second hydraulic cylinder and second driving stem; Described second hydraulic cylinder is coupling on described second pole; Described second driving stem and described second hydraulic cylinder sealing are slidingly matched, and the end of described 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 through the current arm; Described vacuum tank is provided with the reciprocal spacing drive unit that drives vacuum tank and belt synchronous operation; Described vacuum pump is connected with described current house steward through transfer valve respectively with moisture trap; Described metering tank is arranged on described current house steward's below; Described belt is provided with leaking hole, described vacuum pump; Transfer valve; Moisture trap is connected with described control system respectively with reciprocal spacing drive unit.
Described reciprocal spacing drive unit comprises track, near switch, photoelectric sensor and vacuum tank driving mechanism; Described vacuum tank and described track are slidingly matched; The described two ends that are fixedly installed on described track near switch and photoelectric sensor respectively; Describedly be connected with described control system respectively near switch, photoelectric sensor and vacuum tank driving mechanism, described vacuum tank driving mechanism is motor-driven mechanism, hydraulic drive mechanism or air pressure driving mechanism.
Described belt is provided with the idler roller group.
Described metering tank comprises tank and laser sensor, and described laser sensor is arranged on the described tank, and the freeing port of described tank is provided with solenoid valve, and described laser sensor is connected with described control system respectively with solenoid valve.
Described division machine is for deciding than division machine.
A kind of assay method that utilizes described mensuration system that iron ore is 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, grasp the iron ore that contains open fire with grab bucket then and put into hopper, and measure the general assembly (TW) G that contains the open fire iron ore in the hopper through 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 division machine;
(3), the iron ore sample after the division is carried out the determination of moisture of saturated planar water, measure the percentage composition of saturated planar water in the iron ore;
(4), according to the formula:? ?
get out of water containing iron ore integrated moisture content.
A kind of assay method that utilizes described mensuration system that iron ore is 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, control second Driven by Hydraulic Cylinder, second driving stem then, make hopper break away from gage probe hopper jack-up;
(2), grasp the iron ore contain open fire with grab bucket and put into hopper, control second Driven by Hydraulic Cylinder, second driving stem then and hopper is descended and rest on the gage probe, measure the general assembly (TW) G that contains the open fire iron ore in the hopper through 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 division machine;
(4), the iron ore sample after the division is carried out the determination of moisture of saturated planar water, measure the percentage composition of saturated planar water in the iron ore;
(5), according to the formula:
get out of water containing iron ore integrated moisture content.
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 the prior art, the present invention has the advantage that the moisture content of the ore arrived in Hong Kong to direct sampling of the measurement system to prevent the iron ore out of water during the unloading, transport and other aspects of the loss, but also through the belt vacuum filtration device will clear after the separation of water and iron ore, iron ore can be measured in the clear water content, so that the detected moisture content of iron ore integrated (out of water content in saturated adsorbed water content) and its actual moisture content close to or consistent with, and in the total weight of the iron ore is charged, greatly reduce or even eliminate the consignee of the goods deficit tons, saved the receipt economic losses of enterprises; addition, the device is provided with a metering hopper anti-shock device, to release the grab iron ore hopper prevented when the impact on the measurement sensor, damaged metering sensor.
Description of drawings
Fig. 1 measures the structural representation of system for the present invention;
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 describes in further detail the present invention below in conjunction with accompanying drawing.
As shown in the figure; A kind of mensuration system of iron ore open fire moisture; Comprise grab bucket 1; Weigh-hatching plant device 2; Belt vacuum filtration device; The metering tank; Fixed than division machine 3 and control system 4; Weigh-hatching plant device 2 comprises support 21; Hopper 22; Gage probe 23; First pole 24; 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 the driven for opening and closing device on the bottom 222; The driven for opening and closing device comprises first hydraulic cylinder 27 and first driving stem 271; First hydraulic cylinder 27 is coupling on hopper 22; First driving stem 271 and first hydraulic cylinder, 27 sealed sliding are movingly; The end of first driving stem 271 and bottom 222 are coupling; First pole 24; Second pole 25 is spaced with hopper 22; Connecting rod 26 is coupling on first pole 24; One end and the hopper 22 of connecting rod 26 are coupling; Be connected with second hydraulic cylinder 28 on second pole 25; Second driving stem 281 and second hydraulic cylinder, 28 sealed sliding are movingly; The other end of the end of second driving stem 281 and connecting rod 26 is coupling; First hydraulic cylinder 27; Second hydraulic cylinder 28 is connected with control system 4 respectively with gage probe 23; 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; Belt 5 is provided with the leaking hole (not shown); Belt 5 is provided with idler roller group 50; Vacuum tank 52 is connected with current house steward 53 through current arm 531; Vacuum tank 52 is provided with the reciprocal spacing drive unit that drives vacuum tank 52 and belt 5 synchronous operations; Reciprocal spacing drive unit comprises track 56; Near switch 57; Photoelectric sensor 58 and vacuum tank driving mechanism (not shown); Vacuum tank 52 is slidingly matched with track 56; Be fixedly installed on the two ends of track 56 respectively near switch 57 and photoelectric sensor 58; Vacuum pump 54 is connected with current house steward 53 through transfer valve 59 respectively with moisture trap 55; Vacuum pump 54; Transfer valve 59; Moisture trap 55; Near switch 57; Photoelectric sensor 58 is connected with control system 4 respectively with vacuum tank driving mechanism (not shown); 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; The freeing port of tank 6 is provided with solenoid valve 8, and laser sensor 7 is connected with control system 4 respectively with solenoid valve 8.
In the described mensuration of the foregoing description 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 passes through the operation of driving pulley assembly drive vacuum tank; Hydraulic drive mechanism can be that common Driven by Hydraulic Cylinder assembly drives the vacuum tank operation; The air pressure driving mechanism can be that common air cylinder driven assembly drives the vacuum tank operation.
The assay method that utilizes the said determination system that iron ore is 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, control second hydraulic cylinder 28 then and drive second driving stem 281, make hopper 22 break away from gage probes 23 hopper 22 jack-up;
(2), grasp the iron ore that contains open fire with grab bucket 1 and put into hopper 22; Control second hydraulic cylinder 28 then and drive 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 through 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 through 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 division machine 3;
(4), the iron ore sample after the division is carried out the determination of moisture of saturated planar 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), according to the formula:
get out of water containing iron ore integrated moisture content.
Claims (10)
1. the mensuration system of an iron ore open fire moisture; It is characterized in that comprising grab bucket; The weigh-hatching plant device; Belt vacuum filtration device; The metering tank; Division machine and control system; Described weigh-hatching plant device comprises support; Hopper and gage probe; Described hopper is provided with otic placode; 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 the driven for opening and closing device on the described bottom, described gage probe is connected with described control system respectively with the driven for opening and closing device.
2. the mensuration system of a kind of iron ore open fire moisture as claimed in claim 1; It is characterized in that described driven for opening and closing device comprises first hydraulic cylinder and first driving stem; Described first hydraulic cylinder is coupling on described hopper; Described first driving stem and described first hydraulic cylinder sealing are slidingly matched, and the end of described first driving stem and described bottom are coupling.
3. the mensuration system of a kind of iron ore open fire moisture as claimed in claim 1; It is characterized in that described weigh-hatching plant device is provided with anti whip device; Described anti whip device comprises first pole; Second pole; Connecting rod and lever driving device; Described first pole; Second pole and hopper are spaced; Described pitman shaft is connected on described 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 second hydraulic cylinder and second driving stem; Described second hydraulic cylinder is coupling on described second pole; Described second driving stem and described second hydraulic cylinder sealing are slidingly matched, and the end of described second driving stem and the other end of described connecting rod are coupling.
4. the mensuration system of a kind of iron ore open fire moisture 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 through the current arm; Described vacuum tank is provided with the reciprocal spacing drive unit that drives vacuum tank and belt synchronous operation; Described vacuum pump is connected with described current house steward through transfer valve respectively with moisture trap; Described metering tank is arranged on described current house steward's below; Described belt is provided with leaking hole, described vacuum pump; Transfer valve; Moisture trap is connected with described control system respectively with reciprocal spacing drive unit.
5. the mensuration system of a kind of iron ore open fire moisture as claimed in claim 4; It is characterized in that described reciprocal spacing drive unit comprises track; Near switch; Photoelectric sensor and vacuum tank driving mechanism; Described vacuum tank and described track are slidingly matched; The described two ends that are fixedly installed on described track near switch and photoelectric sensor respectively; Described near switch; Photoelectric sensor is connected with described control system respectively with the vacuum tank driving mechanism, and described vacuum tank driving mechanism is a motor-driven mechanism; Hydraulic drive mechanism or air pressure driving mechanism.
6. the mensuration system of a kind of iron ore open fire moisture as claimed in claim 4 is characterized in that described belt is provided with the idler roller group.
7. the mensuration system of a kind of iron ore open fire moisture 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; The freeing port of described tank is provided with solenoid valve, and described laser sensor is connected with described control system respectively with solenoid valve.
8. the mensuration system of a kind of iron ore open fire moisture as claimed in claim 1 is characterized in that described division machine is for deciding than division machine.
9. one kind is utilized the described mensuration of claim 1 system to the assay method that iron ore carries out the open fire determination of moisture, it is characterized in that its detailed process is:
(1), the mensuration system is placed on the position of berth, discharge jetty level, grasp the iron ore that contains open fire with grab bucket then and put into hopper, and measure the general assembly (TW) G that contains the open fire iron ore in the hopper through 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 division machine;
(3), the iron ore sample after the division is carried out the determination of moisture of saturated planar water, measure the percentage composition of saturated planar water in the iron ore;
(4), according to the formula:?
get out of water containing iron ore integrated moisture content.
10. one kind is utilized the described mensuration of claim 3 system to the assay method that iron ore carries out the open fire determination of moisture, it is characterized in that its detailed process is:
(1), the mensuration system is placed on the position of berth, discharge jetty level, control second Driven by Hydraulic Cylinder, second driving stem then, make hopper break away from gage probe hopper jack-up;
(2), grasp the iron ore contain open fire with grab bucket and put into hopper, control second Driven by Hydraulic Cylinder, second driving stem then and hopper is descended and rest on the gage probe, measure the general assembly (TW) G that contains the open fire iron ore in the hopper through 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 division machine;
(4), the iron ore sample after the division is carried out the determination of moisture of saturated planar water, measure the percentage composition of saturated planar water in the iron ore;
(5), according to the formula:
get out of water containing iron ore integrated moisture content.
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN102305750A true CN102305750A (en) | 2012-01-04 |
| CN102305750B CN102305750B (en) | 2013-05-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590020A (en) * | 2012-03-06 | 2012-07-18 | 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 |
| CN102589933A (en) * | 2012-03-06 | 2012-07-18 | 天津口岸检测分析开发服务有限公司 | Open water pipeline sampling device |
| 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590020A (en) * | 2012-03-06 | 2012-07-18 | 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 |
| CN102589933A (en) * | 2012-03-06 | 2012-07-18 | 天津口岸检测分析开发服务有限公司 | Open water pipeline sampling device |
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| 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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| CN102305750B (en) | 2013-05-01 |
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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 |