CN113820171A - Ore sampling and sample preparation system and method - Google Patents
Ore sampling and sample preparation system and method Download PDFInfo
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- CN113820171A CN113820171A CN202111322098.9A CN202111322098A CN113820171A CN 113820171 A CN113820171 A CN 113820171A CN 202111322098 A CN202111322098 A CN 202111322098A CN 113820171 A CN113820171 A CN 113820171A
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- 238000005070 sampling Methods 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims description 14
- 238000012216 screening Methods 0.000 claims abstract description 45
- 238000005303 weighing Methods 0.000 claims abstract description 36
- 239000002699 waste material Substances 0.000 claims abstract description 28
- 230000009467 reduction Effects 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005464 sample preparation method Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 235000019580 granularity Nutrition 0.000 description 4
- 239000013072 incoming material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 239000010837 adhesive waste Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an ore sampling and sample preparing system which comprises a sampling device, a screening device, a weighing device, a crushing device, a division device and a sample collecting device, wherein after being collected by the sampling device, finished ore is processed by the screening device, the weighing device, the crushing device and the division device in sequence to obtain samples, then the samples are collected in the sample collecting device, the screening device screens the finished ore according to a set size, the finished ore larger than the set size is output as a waste material, and the finished ore not larger than the set size is conveyed to the weighing device. The invention also discloses an ore sampling and sample preparation method, which comprises the steps of sample collection, screening, crushing, division and collection. The ore sampling and sample preparing system and method provided by the invention have the advantages of high automation degree, high sample preparing efficiency and low investment cost.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to an ore sampling and sample preparation system and method.
Background
At present, most of sinter sampling and sample preparation systems are comprehensive systems of physical samples and chemical samples, and the problems of complex systems, long sample preparation process and the like exist.
The application number is 201420685043.3 Chinese invention patent application discloses an automatic sinter sample preparation and sampling system with crushing and screening functions, which comprises an automatic sampler, a screening sieve, a crusher, a sinter tape head funnel and an overflow funnel, wherein the automatic sampler is arranged at the sinter tape head funnel, the crusher is arranged at a discharge hole of the automatic sampler, the screening sieve is arranged at a feed hole of the crusher, and the overflow funnel is arranged at one side of the screening sieve. Although the sampling and sample-making system is high in automation degree and efficiency, the system only adopts one crusher, so that the phenomenon that the crusher is blocked and stopped easily occurs in the sample crushing link.
The Chinese patent application with the application number of 200710071091.8 discloses a full-automatic mineral complete set sampling system, which comprises a material conveying device, a head sampling machine, a weighing sample storage hopper, a swing chute, a drum type cylinder screening machine, a weighing feed scale group, a vibrating feeder, a large crusher, an adjustable reduction machine, a two divider, a small crusher, a sample collector, a reversible belt feeder, a rotary drum, a three-stage sieve, a weighing hopper group, a material abandoning belt conveyor, a chute, a dust remover, a dust removal pipeline and a PLC (programmable logic controller), wherein the head sampling machine, the weighing sample storage hopper, the swing chute and the like are connected through the chute. However, the sampling system belongs to a complete set of sampling systems, comprises sample physical property detection and chemical sample preparation, and needs multiple screening division, and the chemical sample preparation time is long. The system is not provided with a bucket elevator, so that the waste adhesive tape machine can be only arranged at the bottommost layer, and the whole system is not flexible enough. In addition, the system is provided with a plurality of crushers with different granularities, so that the whole system is huge and redundant.
In general, the industry lacks a sampling and preparing system which is simple and flexible in design and is specially used for preparing chemical samples.
Disclosure of Invention
In view of the above, the present invention provides a chemical sample preparation system and method that overcomes, or at least partially solves, the above-mentioned problems.
On one hand, the invention discloses an ore sampling and sample preparing system which comprises a sampling device, a screening device, a weighing device, a crushing device, a division device and a sample collecting device, wherein after being collected by the sampling device, finished ore is sequentially processed by the screening device, the weighing device, the crushing device and the division device to obtain samples, and then the samples are collected in the sample collecting device, the screening device screens the finished ore according to a set size, the finished ore larger than the set size is output as waste, and the finished ore not larger than the set size is conveyed to the weighing device.
Optionally, a feeding belt conveyor is arranged between the sampling device and the screening device, and after the finished ore is collected by the sampling device, the finished ore is conveyed to the screening device through the feeding belt conveyor.
Optionally, the separator further comprises a waste material elevator arranged downstream of the division device, and the waste material elevator is respectively connected with the screening device and the division device and is used for collecting waste materials separated by the screening device and the division device.
Optionally, the system further comprises a secondary main belt conveyor arranged above the waste material elevator, the waste material elevator is lifted to the secondary main belt conveyor through a rail, and waste material is input into the secondary main belt conveyor and conveyed by the secondary main belt conveyor.
Optionally, the weighing device is a weigh storage hopper in which material is conveyed to the crushing device after reaching a certain weight.
Optionally, the dividing device is used for dividing the material into two parts, and the amount of the sample input into the sample collecting device is controlled by adjusting the dividing ratio.
On the other hand, the invention discloses an ore sampling and sample preparing method, which uses the sampling and sample preparing system and comprises the following steps:
step S1, conveying the finished ore collected by the sampling device to a screening device for screening, outputting the screened part larger than the set size as waste, and conveying the part not larger than the set size to a weighing device;
step S2, after the materials in the weighing device are accumulated to a certain weight, the materials are conveyed to a crushing device and crushed into powder with set granularity;
and step S3, the powder is reduced by the reduction device to obtain a sample with the weight not less than the set weight, and then the sample is conveyed to the sample collection device.
Optionally, in step S1, the set size is 60 mm.
Optionally, in step S2, the set particle size is 13 mm.
Alternatively, in step S3, the set weight is 60 kg.
According to the technical scheme, the ore sampling and sampling system and the ore sampling and sampling method provided by the invention have the following advantages:
according to the ore sampling and sample preparing system, the feeding belt conveyor is arranged between the sampling device and the screening device, and the sampling device collects ores and then transfers the ores through the feeding belt conveyor, so that interference on downstream equipment can be effectively prevented.
The ore sampling and sample preparing system is provided with the weighing device, so that the chemical sample can be accurately metered.
According to the ore sampling and sample preparing system, the screening device is arranged in front of the weighing device, and oversized ores can be removed, so that the problem of blocking and stopping possibly caused by the oversized ores entering the crushing device is effectively avoided.
The ore sampling and sampling system and the method can be suitable for chemical sample preparation of various ores.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of a sampling system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a sampling device and a feeding belt conveyor in an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a weighing device, a crushing device and a division device in an embodiment of the invention;
fig. 4 is a process flow diagram of a sampling method according to an embodiment of the invention.
Description of reference numerals:
1. a sampling device;
2. a feeding belt conveyor 201 and a first chute;
3. a screening device 301, a second chute 302 and a third chute;
4. a weighing device 401 and a fourth chute;
5. a crushing device;
6. a reduction device 601, a fifth chute 602 and a sixth chute;
7. a waste material hoister;
8. a sample collection device;
9. a secondary main belt conveyor;
10. an incoming material belt conveyor;
11. dust collection device, 1101, dust output pipe.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Example 1
As shown in fig. 1, an ore sampling and sample preparing system according to embodiment 1 of the present invention includes a sampling device 1, a screening device 3, a weighing device 4, a crushing device 5, a reduction device 6, and a sample collecting device 8, after finished ore is collected by the sampling device 1, the finished ore is processed by the screening device 3, the weighing device 4, the crushing device 5, and the reduction device 6 in sequence to obtain a sample, and then the sample is collected in the sample collecting device 8, the screening device 3 screens the finished ore according to a set size, the finished ore larger than the set size is output as waste, and the finished ore not larger than the set size is conveyed to the weighing device 4.
After collecting the finished ore, if the finished ore is directly conveyed to the screening device, the situation that the ore falls to affect the downstream equipment inevitably occurs, so that, as shown in fig. 1 and 2, a feeding belt conveyor 2 is arranged between the sampling device 1 and the screening device 3 for conveying the finished ore from the sampling device 1 to the screening device 3.
As shown in fig. 2, the sampling device 1 collects finished ore, the sampling device 1 is driven by the incoming material belt conveyor 10 to move to the upper side of the feeding belt conveyor 2, then the sampling device 1 directly drops the ore to the feeding belt conveyor 2 from the bottom of the sampling device 1, and then the sampling device 1 returns to the initial position under the drive of the incoming material belt conveyor 10. The sampling device 1 may be a head sampler having a receiving port through which finished ore is received.
As shown in fig. 2, a dust collecting device 11 is provided above the sampling device 1 for collecting dust generated during the collection of the finished ore. The dust is output by the dust output duct 1101.
As shown in fig. 1 and 2, the feeding belt conveyor 2 is connected with the screening device 3 through a first chute 201. Under the drive of the driving device, the feeding belt conveyor 2 conveys the finished ore forward, and the finished ore directly enters the first chute 201 through a hopper at the head of the feeding belt conveyor 2 and is conveyed to the screening device 3.
As shown in fig. 1, the ore sampling and sampling system of the present embodiment includes a screening device 3, and the screening device 3 may be a slide screen. The slide screen is a stationary and inclined screen, and the size of the aperture of the screen is set as required. When the ore is conveyed to the sliding sieve, under the action of gravity, the ore part which is not larger than the set size in the finished ore passes through the sieve holes of the sieve mesh, falls into the second chute 301 arranged below the sieve mesh and is conveyed to the weighing device 4. The ore part of the finished ore larger than the set size slides downwards on the screen obliquely under the action of gravity, falls into the third chute 302 and is conveyed to the waste material elevator 7.
By arranging the screening device 3 in front of the weighing device 4, finished ore of a larger size can be removed, thereby effectively avoiding the possible jamming shutdown problem of large ore entering the crushing device 5.
As shown in fig. 1, the discharge end of the weighing device 4 is connected to the crushing device 5 via a fourth chute 401. When the ore in the weighing device 4 reaches a certain weight, the discharge end of the weighing device 4 is opened, and the ore enters the crushing device 5 through the fourth chute 401. The crushing device 5 can be a jaw crusher, and the finished ore is crushed into powder with a certain granularity as required.
As shown in fig. 1 and fig. 3, the crushing device 5 is connected to the reduction device 6, and the powder obtained by crushing the finished ore by the crushing device 5 enters the reduction device 6 from the crushing device 5 to reduce and separate the sample with the weight not less than the set weight. The dividing device 6 can be a dividing and dividing device for dividing the powder into two parts, and the amount of the divided sample is controlled by adjusting the dividing proportion. The discharge end of the reduction device 6 is connected with the feed ends of a fifth chute 601 and a sixth chute 602. The discharge end of the fifth chute 601 is connected with the sample collecting device 8, and the sample contracted and separated by the contraction and separation device 6 is conveyed to the sample collecting device 8 through the fifth chute 601. The discharge end of the sixth chute 602 is connected with the waste material elevator 7, and the waste material contracted and separated by the contraction and separation device 6 is conveyed to the waste material elevator 7 through the sixth chute 602.
As shown in fig. 1, a reject elevator 7 is provided downstream of the reduction device 6. The waste material elevator 7 can be a bucket elevator, is lifted to the secondary main belt conveyor 9 through a rail, and then inputs waste materials into the secondary main belt conveyor 9 through a chute and conveys the waste materials away.
The sample collection device 8 of the ore sampling system of this embodiment may be any type of collection device, such as a smart code bucket.
The first, second, third, fourth, fifth and sixth chutes 201, 301, 302, 401, 601 and 602 of the ore sampling and sampling system of the present embodiment may be any type of commonly used chute, for example, a chute.
Each device of this embodiment ore sampling system can adopt PLC control system to control, and equipment links to each other with control system through the signal line with the instrument in each device, through system processing, and the signal is concentrated and is shown, and control signal conveys corresponding equipment by the signal line, realizes automatic control. The PLC control system is a conventional control system in the art and will not be described herein.
Each device of the ore sampling and sampling system in this embodiment may be arranged in a hierarchical manner, and the floor in this embodiment is, for example, a floor of a factory building. As shown in fig. 1, the devices of the ore sampling and sample preparation system of the present embodiment can be arranged in five layers, from bottom to top, a first layer is provided with a sample collection device 8, a second layer is provided with a waste material elevator 7, a third layer is provided with a crushing device 5 and a reduction and separation device 6, a fourth layer is provided with a screening device 3, a weighing device 4 and a secondary main belt conveyor 9, and a fifth layer is provided with a sampling device 1 and a material belt conveyor 2. Of course, this is merely exemplary, and other arrangements may be used as long as the sample preparation requirements are met.
Example 2
As shown in fig. 4, an ore sampling and sample preparation method according to embodiment 2 of the present invention, which uses the sampling and sample preparation system according to embodiment 1 of the present invention, includes the following steps:
step S1: collecting and screening finished ore
The sampling device 1 collects finished ore, and then the finished ore is conveyed to the screening device 3 through the feeding belt conveyor 2 to be screened. The part which is sieved by the sieving device 3 and is larger than the set size is output to a waste material hoister 7 as waste material, and the part which is not larger than the set size is conveyed to the weighing device 4.
The set size can be reasonably selected by a person skilled in the art according to actual needs, and for example, the set size can be 60 mm. Namely, the part of more than 60mm sieved by the sieving device 3 is output to a waste material hoister 7 as waste material, and the part of not more than 60mm is conveyed to the weighing device 4.
Step S2: crushing finished ore
When the finished ore of the weighing device 4 is conveyed to the crushing device 5 after being accumulated to a certain weight, the finished ore is crushed into powder with set granularity in the crushing device 5.
The set particle size can be reasonably selected by those skilled in the art according to actual needs, for example, the set particle size is 13 mm. That is, the finished ore of the weighing device 4 was conveyed to a 13mm jaw crusher to be crushed into 13mm powder.
Step S3: division of powder and collection of sample
And conveying the powder obtained by crushing the crushing device 5 to a division device 6, dividing samples with the weight not less than the set weight, conveying the samples to a sample collection device 8, and conveying the waste materials removed by division to a waste material elevator 7.
The set weight can be reasonably selected by those skilled in the art according to actual needs, for example, the set weight is 60 kg. And conveying the powder obtained by crushing by the crushing device 5 to a division device 6, dividing to obtain samples of not less than 60kg, conveying to a sample collection device 8, and conveying the waste materials removed by division to a waste material elevator 7.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains
In the description of the present application, it is to be understood that the terms "central," "radial," "axial," "depth," "width," "upper," "lower," "end," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The utility model provides an ore system of getting system appearance, its characterized in that includes sampling device, screening plant, weighing device, breaker, division device and sample collection device, after the finished product ore is collected by sampling device, obtains the sample through the processing of screening plant, weighing device, breaker and division device in proper order, then collects among the sample collection device, screening plant sieves the finished product ore according to setting for the size, and the finished product ore that is greater than setting for the size is exported as abandoning the material, and the finished product ore that is not greater than setting for the size is carried to weighing device.
2. An ore sampling and sample preparation system according to claim 1, wherein a feeding belt conveyor is arranged between the sampling device and the screening device, and after being collected by the sampling device, the finished ore is conveyed to the screening device through the feeding belt conveyor.
3. An ore sampling system according to claim 1, further comprising a reject elevator disposed downstream of the reduction device, the reject elevator being connected to the screening device and the reduction device respectively for collecting the reject separated by the screening device and the reduction device.
4. An ore sampling system according to claim 3, further comprising a secondary primary belt conveyor disposed above the reject elevator, the reject elevator being lifted by rails to the secondary primary belt conveyor, wherein reject material is input into and conveyed by the secondary primary belt conveyor.
5. An ore sampling system according to claim 1 wherein the weighing device is a weigh storage hopper in which material is delivered to the crushing device after reaching a certain weight.
6. An ore sampling system according to claim 1 wherein the reduction means is adapted to divide the material into two portions, the amount of sample input to the sample collection means being controlled by adjusting the reduction ratio.
7. An ore sampling method, characterized in that the sampling system of any one of claims 1 to 6 is used, and the method comprises the following steps:
step S1, conveying the finished ore collected by the sampling device to a screening device for screening, outputting the screened part larger than the set size as waste, and conveying the part not larger than the set size to a weighing device;
step S2, after the materials in the weighing device are accumulated to a certain weight, the materials are conveyed to a crushing device and crushed into powder with set granularity;
and step S3, the powder is reduced by the reduction device to obtain a sample with the weight not less than the set weight, and then the sample is conveyed to the sample collection device.
8. An ore sampling method according to claim 7, wherein in step S1 the set size is 60 mm.
9. The ore sampling method according to claim 7, wherein the set grain size is 13mm in step S2.
10. An ore sampling method according to claim 7, wherein in step S3, the set weight is 60 kg.
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| US20100193618A1 (en) * | 2007-09-26 | 2010-08-05 | Gekko Systems Pty Ltd | Modular ore processor |
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| CN110926906A (en) * | 2019-12-30 | 2020-03-27 | 济南中意维尔科技有限公司 | Automatic package, sample, screening, broken system of tearing of alloy ore deposit |
| CN110940819A (en) * | 2019-11-19 | 2020-03-31 | 青岛海关技术中心 | Full-automatic sample preparation screening and measuring system for alloy ore |
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2021
- 2021-11-09 CN CN202111322098.9A patent/CN113820171A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1110087A (en) * | 1997-06-23 | 1999-01-19 | Kobe Steel Ltd | Automatic particle size measuring device for sand |
| CN201096643Y (en) * | 2007-09-04 | 2008-08-06 | 范金泉 | Full-automatic mineral whole set sampling and preparing system |
| CN101382475A (en) * | 2007-09-04 | 2009-03-11 | 范金泉 | Full automatic mineral sampling and sample-preparing system in set and mineral sampling and sample-preparing method thereof |
| US20100193618A1 (en) * | 2007-09-26 | 2010-08-05 | Gekko Systems Pty Ltd | Modular ore processor |
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