CN113029843A - Mine filling concentration environment-friendly accurate measuring device - Google Patents
Mine filling concentration environment-friendly accurate measuring device Download PDFInfo
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- CN113029843A CN113029843A CN202010552475.7A CN202010552475A CN113029843A CN 113029843 A CN113029843 A CN 113029843A CN 202010552475 A CN202010552475 A CN 202010552475A CN 113029843 A CN113029843 A CN 113029843A
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- 238000005259 measurement Methods 0.000 claims abstract description 85
- 238000005070 sampling Methods 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 43
- 239000002002 slurry Substances 0.000 claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 15
- 230000007613 environmental effect Effects 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 238000005065 mining Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000691 measurement method Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 9
- 238000005303 weighing Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000012764 mineral filler Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 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
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005204 segregation 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
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/36—Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
本发明提供一种矿山充填浓度环保精准测量装置，属于矿山充填技术领域。该装置包括取样容器、充填料浓度检测系统、刚性连接杆、取样容器清洗管、浓度测量控制器、传输线缆、被测料浆容器和自控系统，被测料浆取样器通过可伸缩刚性连接杆控制对被测料浆进行取样，上端与充填料浓度检测系统连接，充填料浓度检测系统通过传输线缆与浓度测量控制器连接，浓度测量控制器连接自控系统。该装置测量原理科学、测量方法环保、测量部位合理、测量结果精确，通过技术指导，对于生产制造企业，易于商品化，凡是采用充填开采的矿山均有采购使用需求，具有非常广阔的市场推广价值。
The invention provides an environment-friendly and precise measuring device for mine filling concentration, which belongs to the technical field of mine filling. The device includes a sampling container, a filling material concentration detection system, a rigid connecting rod, a sampling container cleaning pipe, a concentration measurement controller, a transmission cable, a measured slurry container and an automatic control system. The measured slurry sampler is connected through a retractable rigid connection The rod controls the sampling of the measured slurry, and the upper end is connected to the filling material concentration detection system. The filling material concentration detection system is connected to the concentration measurement controller through the transmission cable, and the concentration measurement controller is connected to the automatic control system. The measurement principle of the device is scientific, the measurement method is environmentally friendly, the measurement position is reasonable, and the measurement results are accurate. Through technical guidance, it is easy to commercialize for manufacturing enterprises. All mines that use backfill mining have purchase and use requirements, and have a very broad market promotion value. .
Description
Technical Field
The invention relates to the technical field of mine filling, in particular to an environment-friendly and accurate measuring device for mine filling concentration.
Background
The metal ore mining method comprises a caving method, an open stope method and a filling method, and the filling method is the only choice of a plurality of mines along with the continuous increase of mining depth and the higher and higher environmental protection requirement. For metal ore filling, the most core is the filling concentration, and the filling concentration is too high, so that the pipe is inhibited and wrinkled and is easy to cause pipe blockage; the filling concentration is too low, the strength is reduced under the condition of the same cement consumption, or the cement consumption is increased and the cost is increased under the condition of the same strength, and the layered segregation of a stope is reached, so the environment is polluted. Pack consistency is considered as the "soul" of pack mining, the key to pack strength and cost control.
However, the current measurement of filler concentration is not satisfactory. The most commonly used methods are nuclear densitometers and ultrasonic densitometers, wherein a nuclear densitometer has radiation that causes more or less harm to the human body over long-term use; the ultrasonic concentration meter has larger measurement error for the concentration of the filling material with higher concentration and non-full pipe; and the two concentration meters need to be frequently checked in the using process. In order to accurately check the filling concentration, a specially-assigned person often performs irregular sampling and manual measurement by adopting a drying method and the like in the filling process. For a long time, the environmental protection and accurate measurement of the filling concentration has not been solved.
Therefore, the invention provides an environment-friendly and accurate measuring device for mine filling concentration, which aims to environment-friendly and accurately measure the concentration of metal ore filling materials. By adopting the device, the concentration of the filling slurry can be accurately detected through a central control room or on-site control, and the use is very convenient. The method has important significance in the aspects of accurate control of mine filling concentration, reduction of filling cost and the like.
Disclosure of Invention
The invention provides an environment-friendly accurate measuring device for mine filling concentration, aiming at the problems that the existing filling concentration detection is not environment-friendly and inaccurate.
The device includes the sample container, the rigid link pole, filling material concentration detection system, the sample container scavenge pipe, the transmission cable, the concentration measurement controller, surveyed ground paste container and autonomous system, it is surveyed the ground paste to hold in the ground paste container to be surveyed, the sample container can go deep into and be surveyed sample in the ground paste, the sample container passes through the filling material concentration detection system of rigid link pole connection top, filling material concentration detection system below sets up the sample container scavenge pipe, the sample container scavenge pipe can wash the sample container, filling material concentration detection system passes through the transmission cable and connects the concentration measurement controller, the remote autonomous system is connected to the concentration measurement controller.
The sampling container is one of a cone, a truncated cone, a cylinder, a quadrangular pyramid and the like, and is easy to intrude into the slurry to be tested for sampling when moving downwards and has a discharging function when moving upwards; the inner surface and the outer surface of the sampling container are smooth and are not easy to rust and corrode.
The rigid connecting rod can stretch out and draw back, and the ground paste sampler is surveyed the ground paste through scalable rigid connecting rod control and is taken a sample.
The filling material concentration detection system comprises a weighing sensor, a distance sensor and a rigid connecting rod telescopic control structure, the precision requirement of the weighing sensor is not less than 1/1000, the precision requirement of the distance sensor is not less than 1cm, and the lifting speed of the telescopic structure is adjusted according to actual requirements. The concentration detection mechanism is protected by a shell.
The concentration measurement controller is mainly used for setting and controlling measurement parameters, including basic parameter settings such as specific gravity, volume, stroke distance, speed and the like, setting parameter inspection, manual and automatic measurement, weight zero clearing, starting measurement, density and mass concentration conversion, liquid crystal screen display and other functions. The functions can be realized through a pre-programmed measurement and control program, and the concentration measurement controller is protected by a shell. The concentration measurement controller provides a remote interface. Before actual use, the device needs to be measured and calibrated for at least 3 times, and the accuracy of a measuring result is ensured.
The filling material concentration detection system and the concentration measurement controller are both fixedly installed on a platform or a support frame where the mine filling concentration environment-friendly accurate measurement device is located.
The measured slurry is the final slurry obtained by uniformly mixing the full tailings, the cement, other aggregates and the additive.
The slurry container to be measured can be a horizontal stirring tank, a vertical stirring tank, a buffer tank and the like, the slurry in the container is the slurry to be filled into an underground stope through a drill hole, and the slurry container to be measured has enough space and installation conditions. The installation condition can be artificially created if the installation condition is not met.
The automatic control system can be a PLC (programmable logic controller) and a DSC (differential scanning controller) system, is connected through a remote interface of the concentration measurement controller and can be compatible with the existing filling automatic control system.
The specific use method of the device is as follows:
s1: the device is arranged at a proper position and used for testing the slurry concentration in the stirring tank or buffering the slurry in the storage bin between the stirring tank and the drill hole, and the tested slurry is the slurry formed by uniformly mixing all filling materials;
s2: before use, checking the volume v of the sampling container for not less than 3 times by using clear water, and checking the symmetrical weighing sensor;
s3: inputting the density value of solid particles of the filling material into a concentration measurement controller;
s4: the concentration measurement controller is used on site or an automatic control system is used remotely to control the device, a weight reset button is clicked at first, then a start button is clicked to start measurement, and the measured weight of the slurry is m;
s5: the density rho of the filling material is m/v, the density rho is set through a built-in program of a concentration measurement controller, and a density result is displayed on the concentration measurement controller or an automatic control system;
s6: calculating mass concentration according to the density of the solid particles of the filling material and the density of the filling material through the built-in program setting of the concentration measurement controller; the density and concentration switching button on the concentration measurement controller can freely convert the density and the concentration;
s7: and unloading the sampling container, emptying the filling material, and cleaning the sampling container by adopting a sampling container cleaning pipe for next measurement.
The technical scheme of the invention has the following beneficial effects:
according to the scheme, the method is easy to commercialize for production and manufacturing enterprises through technical guidance, and all mines adopting filling mining have purchasing and using requirements, so that the method has a very wide market popularization value. The main advantages of the device are summarized as follows: firstly, the measurement principle is scientific. The traditional concentration measurement is indirect, the principle of the measuring device is simple and scientific, namely, the density is the ratio of mass to volume, and the density and the mass concentration can be freely converted through basic physical properties. Secondly, the measuring method is environment-friendly. Compared with the most accurate nuclear density meter of the present filling concentration, the measuring method of the device is environment-friendly and pollution-free. Thirdly, the measurement position is reasonable. The traditional filling concentration measurement is generally installed on a conveying pipeline, but due to concentration fluctuation of slurry and change of the cross section area in the pipeline, the non-contact concentration measurement is difficult to measure accurately, and although the measurement part of the device is not a pipeline, the concentration measurement result is representative because the measured slurry is the final filling material. Fourth, the measurement results are accurate. The testing device ensures the accuracy of the test result by means of weighing sensor precision control, expansion rate control, checking for avoiding errors for not less than 3 times and the like.
Drawings
FIG. 1 is a schematic structural diagram of an environment-friendly and accurate mine filling concentration measuring device according to the present invention;
FIG. 2 is a schematic view of a horizontal stirring installation in example 1 of the present invention;
FIG. 3 is a schematic view of a vertical stirring installation in example 2 of the present invention.
Wherein: the method comprises the following steps of 1-sampling container, 2-rigid connecting rod, 3-filling material concentration detection system, 4-sampling container cleaning tube, 5-transmission cable, 6-concentration measurement controller, 7-measured slurry, 8-measured slurry container and 9-automatic control system.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides an environment-friendly and accurate measuring device for mine filling concentration.
As shown in fig. 1, the device includes sampling container 1, rigid connection rod 2, filling material concentration detection system 3, sampling container scavenge pipe 4, transmission cable 5, concentration measurement controller 6, surveyed ground paste container 8 and autonomous system 9, hold surveyed ground paste 7 in the surveyed ground paste container 8, sampling container 1 can go deep into and be surveyed and take a sample in the ground paste 7, sampling container 1 passes through the filling material concentration detection system 3 of rigid connection rod 2 connection top, filling material concentration detection system 3 below sets up sampling container scavenge pipe 4, sampling container scavenge pipe 4 can wash sampling container 1, filling material concentration detection system 3 passes through transmission cable 5 and connects concentration measurement controller 6, concentration measurement controller 6 connects autonomous system 9.
The device use as follows:
s1: the device is arranged at a proper position and used for testing the slurry concentration in the stirring tank or buffering the slurry in the storage bin between the stirring tank and the drill hole, and the tested slurry is the slurry formed by uniformly mixing all filling materials;
s2: before use, checking the volume v of the sampling container for not less than 3 times by using clear water, and checking the symmetrical weighing sensor;
s3: inputting a particle density value in a concentration measurement controller;
s4: the concentration measurement controller is used on site or an automatic control system is used remotely to control the device, a weight reset button is clicked at first, then a start button is clicked to start measurement, and the measured weight of the slurry is m;
s5: the density rho of the filling material is m/v, the density result is displayed on a concentration measurement controller or an automatic control system through the built-in program setting of the concentration measurement controller;
s6: calculating mass concentration according to the density of the solid particles of the filling material and the density of the filling material through the built-in program setting of the concentration measurement controller; the density and concentration switching button on the concentration measurement controller can freely convert the density and the concentration;
s7: and unloading the sampling container, emptying the filling material, and cleaning the sampling container by adopting a sampling container cleaning pipe for next measurement.
This is described below in connection with two specific embodiments.
Example 1-horizontal stirrer:
as shown in figure 2, in practical application, the device is applied above a discharge opening of a second section of a horizontal mixer for a certain copper ore, and the capacity of the mixer is 120m3H is used as the reference value. Sampling container 1 is connected in filling material concentration detection system 3 through rigid connection rod 2, and during actual sampling, sampling in the horizontal stirred tank is deepened to conical sampling container 1, and rigid connection rod 2 contracts, promotes sampling container, detects, and the testing result passes through transmission cable 5 and transmits to concentration measurement controller 6. The mineral filler has a solid densityAbout 2.73g/cm3The volume of the sampling container is 500ml (which needs to be checked before use), the sampling container is reset when weighing, the mass of the container is 923g when the slurry is full, and the density of the filling material is 1.85g/cm3The mass concentration was switched to 72.5%.
Example 2-vertical stirrer:
as shown in FIG. 3, in practical use, this apparatus is applied to a buffer tank below a certain iron ore vertical mixer, and the slurry is first stirred in two high-concentration stirring tanks of phi 2600X 3000, each vertical mixer having a capacity of 150m3And h, the two vertically stirred slurry are merged in a buffer pool before entering the drill hole. Sampling container 1 is connected in filling material concentration detection system 3 through rigid connection rod 2, and during actual sampling, sampling in the horizontal stirred tank is deepened to conical sampling container 1, and rigid connection rod 2 contracts, promotes sampling container, detects, and the testing result passes through transmission cable 5 and transmits to concentration measurement controller 6. The mineral filler has a solid density of about 2.95g/cm3The volume of the sampling container is 500ml (which needs to be checked before use), the sampling container is reset when weighing, the mass of the container is 890g when slurry is filled, and the density of the filling material is 1.78g/cm3The mass concentration was switched to 66.3%.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010552475.7A CN113029843A (en) | 2020-06-17 | 2020-06-17 | Mine filling concentration environment-friendly accurate measuring device |
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| CN202010552475.7A CN113029843A (en) | 2020-06-17 | 2020-06-17 | Mine filling concentration environment-friendly accurate measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115291507A (en) * | 2022-01-06 | 2022-11-04 | 兰州理工大学 | A kind of sliding mode control method and system of mine filling slurry concentration |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799390A (en) * | 2010-04-19 | 2010-08-11 | 北京矿冶研究总院 | A kind of slurry concentration meter based on gravimetric method |
| CN107589032A (en) * | 2017-09-30 | 2018-01-16 | 浙江钛合仪器有限公司 | A kind of ore pulp concentration meter based on gravimetric method |
| CN212622037U (en) * | 2020-06-17 | 2021-02-26 | 北京科技大学 | An environmentally friendly and precise measurement device for mine filling concentration |
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2020
- 2020-06-17 CN CN202010552475.7A patent/CN113029843A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799390A (en) * | 2010-04-19 | 2010-08-11 | 北京矿冶研究总院 | A kind of slurry concentration meter based on gravimetric method |
| CN107589032A (en) * | 2017-09-30 | 2018-01-16 | 浙江钛合仪器有限公司 | A kind of ore pulp concentration meter based on gravimetric method |
| CN212622037U (en) * | 2020-06-17 | 2021-02-26 | 北京科技大学 | An environmentally friendly and precise measurement device for mine filling concentration |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115291507A (en) * | 2022-01-06 | 2022-11-04 | 兰州理工大学 | A kind of sliding mode control method and system of mine filling slurry concentration |
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