WO2022089493A1 - Pre-selection process for lead-zinc raw ore - Google Patents
Pre-selection process for lead-zinc raw ore Download PDFInfo
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- WO2022089493A1 WO2022089493A1 PCT/CN2021/126776 CN2021126776W WO2022089493A1 WO 2022089493 A1 WO2022089493 A1 WO 2022089493A1 CN 2021126776 W CN2021126776 W CN 2021126776W WO 2022089493 A1 WO2022089493 A1 WO 2022089493A1
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- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000010878 waste rock Substances 0.000 claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 239000012141 concentrate Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000227 grinding Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000013135 deep learning Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005456 ore beneficiation Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000012764 semi-quantitative analysis Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/3416—Sorting according to other particular properties according to radiation transmissivity, e.g. for light, x-rays, particle radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
Abstract
A pre-selection process for lead-zinc raw ore, comprising the following steps: 1) crushing the lead-zinc raw ore to obtain crushed ore; and 2) sorting the crushed ore by means of an XRT ray intelligent concentrator. The XRT ray intelligent concentrator comprises: a control unit, and a conveying unit, a detection unit and an execution unit that are electrically connected to the control unit. The crushed ore is fed into the conveying unit by a feeding device, the conveying unit conveys the crushed ore to pass through the detection unit, the detection unit comprises an X-ray detector, the X-ray detector obtains characteristic value data of the ore and transfers the data to the control unit, the control unit compares the data with set ore characteristic data and waste rock characteristic data and comprehensively determines whether the detected ore is ore or waste rock, and then the control unit controls the execution unit to separate the ore from the waste rock. The process can effectively select the waste rock accounting for 10% to 15% of the total ore amount from the raw ore in advance, and reduces the grinding amount of the raw ore and the amount of tailings in the subsequent production process, thereby greatly reducing the production cost of ore selection.
Description
本发明涉及选矿技术领域，具体涉及一种铅锌原矿预选工艺。The invention relates to the technical field of beneficiation, in particular to a lead-zinc ore pre-selection process.
矿山在矿石采掘过程中会夹带大量废石，特别是低品位矿石，若夹带的大量废石进入选矿厂生产过程，会造成选矿处理成本的增加，且制约选矿厂原矿处理量的提高。因此，如何将原矿中的废石进行预选，减少废石对选矿工序的影响，减少大量废石对后续磨矿、浮选、脱水作业的动力和药剂成本，提高选矿厂的尾矿处理能力，缓解尾矿库的压力，是铅锌原矿选矿工序中的难点和重点，因此，本发明旨在开发一种铅锌原矿预选工艺，以更好地满足实际生产需要。A large amount of waste rock, especially low-grade ore, will be entrained in the mine during the ore mining process. If a large amount of waste rock is carried into the production process of the concentrator, it will increase the cost of beneficiation and restrict the increase in the processing capacity of the concentrator. Therefore, how to pre-select the waste rock in the original ore, reduce the impact of the waste rock on the beneficiation process, reduce the power and reagent costs of a large amount of waste rock for subsequent grinding, flotation, and dewatering operations, and improve the tailings treatment capacity of the beneficiation plant, Relieving the pressure of the tailings pond is the difficulty and the key point in the lead-zinc raw ore beneficiation process. Therefore, the present invention aims to develop a lead-zinc raw ore pre-selection process to better meet the actual production needs.
发明内容SUMMARY OF THE INVENTION
本发明所解决的技术问题在于提供一种铅锌原矿预选工艺，以解决上述背景技术中的问题。The technical problem solved by the present invention is to provide a lead-zinc ore pre-selection process to solve the above-mentioned problems in the background technology.
本发明所解决的技术问题采用以下技术方案来实现：The technical problem solved by the present invention adopts the following technical solutions to realize:
一种铅锌原矿预选工艺，包括如下步骤：A lead-zinc ore pre-selection process, comprising the steps:
1)将铅锌原矿粉碎后得到碎矿；1) obtain crushed ore after the lead-zinc ore is crushed;
2)碎矿通过XRT射线智能选矿机进行分选，XRT射线智能选矿机包括控制单元以及与控制单元电连接的输送单元、探测单元、执行单元，其中碎矿通过给料装置进入输送单元，输送单元使碎矿经过探测单元，探测单元包括X射线探测器，X射线探测器获取矿石的特征值数据并将数据传递至控制单元，控制单元将所述数据与设定的矿石特征数据以及废石特征数据进行对比，综合判断被检测的矿石是矿石或废石，然后控制单元控制执行单元，使矿石与废石分离。2) The crushed ore is sorted by an XRT ray intelligent concentrator, which includes a control unit, a conveying unit, a detection unit, and an execution unit that are electrically connected to the control unit. The crushed ore enters the conveying unit through the feeding device, and is conveyed The unit makes the crushed ore pass through the detection unit. The detection unit includes an X-ray detector. The X-ray detector obtains the characteristic value data of the ore and transmits the data to the control unit. The control unit compares the data with the set characteristic data of the ore and the waste rock. The characteristic data are compared to comprehensively judge whether the detected ore is ore or waste rock, and then the control unit controls the execution unit to separate the ore from the waste rock.
优选的，所述碎矿的粒径范围为10～50mm。Preferably, the particle size of the crushed ore ranges from 10 to 50 mm.
优选的，所述输送单元为输送皮带。Preferably, the conveying unit is a conveying belt.
优选的，所述探测单元设置于输送带的尾部。Preferably, the detection unit is arranged at the tail of the conveyor belt.
优选的，所述执行单元包括出料口以及设置于出料口上的电磁阀，所述电磁阀与所述控制单元电连接。Preferably, the execution unit includes a discharge port and a solenoid valve disposed on the discharge port, and the solenoid valve is electrically connected to the control unit.
优选的，所述出料口分为精矿出料口和废石出料口，精矿出料口上设置有第一电磁阀，废石出料口上设置有第二电磁阀，第一电磁阀和第二电磁阀均与所述控制单元电连接。Preferably, the discharge port is divided into a concentrate discharge port and a waste rock discharge port, the concentrate discharge port is provided with a first solenoid valve, the waste rock discharge port is provided with a second solenoid valve, the first solenoid valve and the second solenoid valve are all electrically connected with the control unit.
优选的，所述第一出料口或第二出料口通过高压喷气进行辅助出料。Preferably, the first discharge port or the second discharge port performs auxiliary discharge through high-pressure air jet.
有益效果：本发明所述的铅锌原矿预选工艺，其能将铅锌矿石中的废石提前选出一部分，经试验，预选选出的废石可占矿石总量的10％至15％以上，该废石可作建筑骨料出售，同时降低了矿石后续磨矿、浮选及脱水作业的动力及药剂成本，提高选矿厂综合经济效益，也有利于提高选矿厂原矿处理能力。同时因废石的提前抛出，每年尾砂的可减少产量， 缓解了尾矿库的压力，延长了尾矿库的使用年限，降低安全环保风险。Beneficial effect: The lead-zinc raw ore pre-selection process of the present invention can select a part of the waste rock in the lead-zinc ore in advance. After testing, the pre-selected waste rock can account for more than 10% to 15% of the total ore. , the waste rock can be sold as building aggregate, and at the same time, it reduces the power and chemical costs of subsequent ore grinding, flotation and dehydration operations, improves the comprehensive economic benefits of the concentrator, and is also conducive to improving the raw ore processing capacity of the concentrator. At the same time, due to the early throwing of waste rock, the output of tailings can be reduced every year, which relieves the pressure on the tailings pond, prolongs the service life of the tailings pond, and reduces the risk of safety and environmental protection.
图1为本发明中XRT射线智能选矿机的电路连接图。Fig. 1 is the circuit connection diagram of the XRT ray intelligent concentrator in the present invention.
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体实施例进一步阐述本发明。In order to make the technical means, creation features, achievement goals and effects of the present invention easy to understand and understand, the present invention is further described below with reference to specific embodiments.
实施例Example
本实施例所述的铅锌原矿预选工艺，包括如下步骤：The lead-zinc ore pre-selection process described in the present embodiment comprises the following steps:
1)将铅锌原矿粉碎后得到碎矿；其中，碎矿的粒径范围为10～50mm；1) crushing the lead-zinc ore to obtain crushed ore; wherein, the particle size range of crushed ore is 10～50mm;
2)碎矿通过XRT射线智能选矿机进行分选，如图1所示，XRT射线智能选矿机包括控制单元以及与控制单元电连接的输送单元、探测单元、执行单元，其中碎矿通过给料装置进入输送单元，输送单元使碎矿经过探测单元，探测单元包括X射线探测器，X射线探测器获取矿石的特征值数据并将数据传递至控制单元，控制单元将所述数据与设定的矿石特征数据以及废石特征数据进行对比，综合判断被检测的矿石是矿石或废石，然后控制单元控制执行单元，使矿石与废石分离。2) The crushed ore is sorted by the XRT ray intelligent concentrator. As shown in Figure 1, the XRT ray intelligent ore concentrator includes a control unit, a conveying unit, a detection unit, and an execution unit that are electrically connected to the control unit. The device enters the conveying unit, and the conveying unit makes the crushed ore pass through the detection unit. The detection unit includes an X-ray detector. The X-ray detector obtains the characteristic value data of the ore and transmits the data to the control unit. The control unit compares the data with the set value. The characteristic data of ore and the characteristic data of waste rock are compared, and the detected ore is judged whether it is ore or waste rock, and then the control unit controls the execution unit to separate the ore from the waste rock.
具体的，输送单元为输送皮带，探测单元设置于输送带的尾部，执行单元包括出料口以及设置于出料口上的电磁阀，所述电磁阀与所述控制单元电连接，出料口分为精矿出料口和废石出料口，精矿出料口上设置有第一电磁阀，废石出料口上设置有第二电磁阀，第一电磁阀和第二电磁阀均与所述控制单元电连接，第一出料口或第二出料口通过高压喷气进行辅助出料。Specifically, the conveying unit is a conveying belt, the detection unit is arranged at the end of the conveying belt, the execution unit includes a discharge port and a solenoid valve arranged on the discharge port, the solenoid valve is electrically connected with the control unit, and the discharge port is divided into two parts. It is the concentrate discharge port and the waste rock discharge port. The concentrate discharge port is provided with a first solenoid valve, and the waste rock discharge port is provided with a second solenoid valve. The first solenoid valve and the second solenoid valve are the same as the The control unit is electrically connected, and the first discharge port or the second discharge port performs auxiliary discharge through high-pressure air jet.
控制单元事先将大量的不同矿石的原子密度、透射率等海量信息进行存储；碎矿经过探测单元时，对碎矿进行光谱探测，光谱探测得到的碎矿的透射率以及原子密度等数据传递至控制单元，进而与控制单元中预先存储的数据进行比对，从而对矿石个体进行结果辨析和预测，实现矿石定性半定量分析判别，即根据矿石实际分析结果与设定的分拣条件综合判断被检测的矿石是精矿或尾矿，通过执行单元实现分拣，从而达到精矿与尾矿分离。The control unit stores a large amount of information such as atomic density and transmittance of different ores in advance; when the broken ore passes through the detection unit, it performs spectral detection on the broken ore, and the transmittance and atomic density of the broken ore obtained by the spectral detection are transmitted to the system. The control unit is then compared with the pre-stored data in the control unit, so as to analyze and predict the results of the individual ore, and realize the qualitative and semi-quantitative analysis and judgment of the ore. The detected ore is concentrate or tailings, and the sorting is realized by the execution unit, so as to achieve the separation of concentrate and tailings.
XRT射线智能选矿机具有极好的机器视觉技术、大数据计算等优点，其中机器视觉即用机器模拟人眼做测量和判断，最大优点是在一些不适于人工作业的环境或者人工视觉难以满足要求的场所可以大大提高生产灵活性、生产效率、生产质量和自动化程度；而大数据计算可针对检测目标进行多方向、多角度、多层次特征提取和数据融合，汇总海量数据集合，结合高性能计算机，让机器全面地、精准地描述检测目标的固有特性，其优点是精准、快速、高效、全面；同时其还具有深度学习的优点，通过模拟人脑神经网络的分析、学习机理，组合低层特征形成更加抽象的高层属性类别或特征的模型结构，让机器象人脑一样学习、分析和解释目标信息，完成高难度的识别和评估任务。XRT ray intelligent concentrator has the advantages of excellent machine vision technology, big data calculation, etc. Among them, machine vision uses machines to simulate human eyes for measurement and judgment. The biggest advantage is that in some environments that are not suitable for manual operation or artificial vision is difficult to meet The required place can greatly improve production flexibility, production efficiency, production quality and degree of automation; while big data computing can perform multi-directional, multi-angle, multi-level feature extraction and data fusion for detection targets, summarize massive data collections, and combine high performance. The computer allows the machine to comprehensively and accurately describe the inherent characteristics of the detection target. Its advantages are precise, fast, efficient and comprehensive; at the same time, it also has the advantages of deep learning. Features form a more abstract high-level attribute category or model structure of features, allowing machines to learn, analyze and interpret target information just like the human brain, and complete difficult recognition and evaluation tasks.
因此，本发明通过将XRT射线智能选矿机进行废石预选，具有效率强、精度高、智能化、自动化和适应性强。废石选出的量占矿石总量的10％至15％，可大大降低选矿生产成本及有利于选矿厂的后续生产发展。Therefore, the present invention has the advantages of high efficiency, high precision, intelligence, automation and strong adaptability by using the XRT ray intelligent concentrator for waste rock pre-selection. The selected amount of waste rock accounts for 10% to 15% of the total amount of ore, which can greatly reduce the production cost of beneficiation and is beneficial to the subsequent production development of the beneficiation plant.
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and modifications fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.
Claims (7)
- 一种铅锌原矿预选工艺，其特征在于，包括如下步骤：A lead-zinc ore pre-selection process is characterized in that, comprises the following steps:1)将铅锌原矿粉碎后得到碎矿；1) obtain crushed ore after the lead-zinc ore is crushed;2)碎矿通过XRT射线智能选矿机进行分选，XRT射线智能选矿机包括控制单元以及与控制单元电连接的输送单元、探测单元、执行单元，其中碎矿通过给料装置进入输送单元，输送单元使碎矿经过探测单元，探测单元包括X射线探测器，X射线探测器获取矿石的特征值数据并将数据传递至控制单元，控制单元将所述数据与设定的矿石特征数据以及废石特征数据进行对比，综合判断被检测的矿石是矿石或废石，然后控制单元控制执行单元，使矿石与废石分离。2) The crushed ore is sorted by an XRT ray intelligent concentrator, which includes a control unit, a conveying unit, a detection unit, and an execution unit that are electrically connected to the control unit. The crushed ore enters the conveying unit through the feeding device, and is conveyed The unit makes the crushed ore pass through the detection unit. The detection unit includes an X-ray detector. The X-ray detector obtains the characteristic value data of the ore and transmits the data to the control unit. The control unit compares the data with the set characteristic data of the ore and the waste rock. The characteristic data are compared to comprehensively judge whether the detected ore is ore or waste rock, and then the control unit controls the execution unit to separate the ore from the waste rock.
- 根据权利要求1所述的铅锌原矿预选工艺，其特征在于，所述碎矿的粒径范围为10～50mm。The lead-zinc raw ore pre-selection process according to claim 1, wherein the particle size range of the crushed ore is 10-50 mm.
- 根据权利要求1所述的铅锌原矿预选工艺，其特征在于，所述输送单元为输送皮带。The lead-zinc raw ore pre-selection process according to claim 1, wherein the conveying unit is a conveying belt.
- 根据权利要求1所述的铅锌原矿预选工艺，其特征在于，所述探测单元设置于输送带的尾部。The lead-zinc raw ore pre-selection process according to claim 1, wherein the detection unit is arranged at the tail of the conveyor belt.
- 根据权利要求1所述的铅锌原矿预选工艺，其特征在于，所述执行单元包括出料口以及设置于出料口上的电磁阀，所述电磁阀与所述控制单元电连接。The lead-zinc raw ore pre-selection process according to claim 1, wherein the execution unit comprises a discharge port and a solenoid valve disposed on the discharge port, and the solenoid valve is electrically connected to the control unit.
- 根据权利要求5所述的铅锌原矿预选工艺，其特征在于，所述出料口分为精矿出料口和废石出料口，精矿出料口上设置有第一电磁阀，废石出料口上设置有第二电磁阀，第一电磁阀和第二电磁阀均与所述控制单元电连接。The lead-zinc raw ore pre-selection process according to claim 5, wherein the discharge port is divided into a concentrate discharge port and a waste rock discharge port, and the concentrate discharge port is provided with a first solenoid valve, and the waste rock discharge port is provided with a first solenoid valve. The discharge port is provided with a second solenoid valve, and both the first solenoid valve and the second solenoid valve are electrically connected to the control unit.
- 根据权利要求6所述的铅锌原矿预选工艺，其特征在于，所述第一出料口或第二出料口通过高压喷气进行辅助出料。The lead-zinc raw ore pre-selection process according to claim 6, wherein the first discharge port or the second discharge port is assisted by high-pressure air jetting.
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| CN202011169482.5A CN113262991A (en) | 2020-10-28 | 2020-10-28 | Lead-zinc raw ore pre-selection process |
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| PCT/CN2021/126776 WO2022089493A1 (en) | 2020-10-28 | 2021-10-27 | Pre-selection process for lead-zinc raw ore |
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| US20160038979A1 (en) * | 2013-04-29 | 2016-02-11 | Research And Production Enterprise "Bourevestnik" | Method for x-ray luminescent separation of minerals and x-ray luminescent separator |
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| CN113262991A (en) * | 2020-10-28 | 2021-08-17 | 水口山有色金属有限责任公司 | Lead-zinc raw ore pre-selection process |
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