CN204439660U - A kind of crude tailings consolidation discharge slurry critical flow velocity measuring system - Google Patents
A kind of crude tailings consolidation discharge slurry critical flow velocity measuring system Download PDFInfo
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- CN204439660U CN204439660U CN201520135196.5U CN201520135196U CN204439660U CN 204439660 U CN204439660 U CN 204439660U CN 201520135196 U CN201520135196 U CN 201520135196U CN 204439660 U CN204439660 U CN 204439660U
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- flow velocity
- critical flow
- crude tailings
- measuring system
- velocity measuring
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- 239000002002 slurry Substances 0.000 title claims abstract description 45
- 238000007596 consolidation process Methods 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000005303 weighing Methods 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 239000004615 ingredient Substances 0.000 claims abstract description 7
- 238000011084 recovery Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 9
- 239000010959 steel Substances 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000008520 organization Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 3
- 238000005065 mining Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000629264 Halicreas minimum Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 102220329494 rs1387400759 Human genes 0.000 description 1
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- 102220067403 rs2273078 Human genes 0.000 description 1
- 102220067404 rs2273079 Human genes 0.000 description 1
- 102220283106 rs372313516 Human genes 0.000 description 1
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- 102220079371 rs778693310 Human genes 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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Abstract
The utility model discloses a kind of crude tailings consolidation discharge slurry critical flow velocity measuring system.Described crude tailings consolidation discharge slurry critical flow velocity measuring system, comprise ingredient sector, rabbling mechanism, Cemented filling mechanism, data acquisition process mechanism, ingredient sector is provided with water tank, crude tailings storehouse, jelling agent storehouse, weighing device, conduit, rabbling mechanism is provided with stirring machine, kiln basin, Cemented filling mechanism is provided with operation valve, mudjack, outlet valve, pipeline, recovery bin, and data acquisition process organization establishes has electromagnetic flowmeter, pressure unit, data cable, central processing unit.The utility model is by the efficient cooperation of ingredient sector, rabbling mechanism, Cemented filling mechanism, data acquisition process mechanism, realize the Real-Time Monitoring between friction loss and transporting velocity in the consolidation discharge slurry pipeline steel process of variable concentrations, reach the slurry pipeline steel critical flow velocity value under efficient, accurate, economic determination different condition, instruct the object of slurry pipeline steel work in consolidation discharge technology.
Description
Technical field
The utility model relates to mining engineering and technology field, particularly relates to a kind of crude tailings consolidation discharge slurry critical flow velocity measuring system.
Background technology
The crude tailings that ore dressing plant is discharged by the discharge of crude tailings consolidation is after thickening and consolidation process, and the last person is carried out in the surface subsidence hole that mining can be utilized to be formed, or stores up other suitable places to earth's surface.The parameter designing etc. of choose reasonable to tailings discharging cost, discharge technology of the critical flow velocity of crude tailings consolidation discharge slurry has material impact, determine that slurry discharge critical flow velocity mainly uses for reference the method for filling system at present, namely determined by the calculating of experimental formula and empirical value.Said method not only computing formula is loaded down with trivial details, and counting accuracy is low, and the slurry critical flow velocity limitation determined is large, large with the actual gap of engineering, can not meet crude tailings consolidation discharge conveying requirement.Based on above-mentioned situation, in the urgent need to the crude tailings consolidation discharge slurry critical flow velocity measuring system that a kind of cost is low, reusable, easy and simple to handle, reach the slurry pipeline steel critical flow velocity value under efficient, accurate, economic determination different condition, instruct the object of slurry pipeline steel work in consolidation discharge technology.
Utility model content
The object of the utility model embodiment is to propose a kind of crude tailings consolidation discharge slurry critical flow velocity measuring system, by the efficient cooperation of ingredient sector, rabbling mechanism, Cemented filling mechanism, data acquisition process mechanism, realize the Real-Time Monitoring between friction loss and transporting velocity in the consolidation discharge slurry pipeline steel process of variable concentrations, reach the slurry pipeline steel critical flow velocity value under efficient, accurate, economic determination different condition, instruct the object of slurry pipeline steel work in consolidation discharge technology.To achieve these goals, the utility model adopts following technical scheme:
A kind of crude tailings consolidation discharge slurry critical flow velocity measuring system, comprising:
Ingredient sector, comprises water tank, crude tailings storehouse, jelling agent storehouse, weighing device, conduit, and described water tank, crude tailings storehouse, jelling agent storehouse are connected with weighing device respectively by respective conduit;
Rabbling mechanism, comprises stirring machine, kiln basin, and it is inner that described stirring machine is placed in described kiln basin, and described kiln basin is placed near described weighing device;
Cemented filling mechanism, comprise operation valve, mudjack, outlet valve, pipeline, recovery bin, described mudjack is connected bottom pond by described operation valve and material, and be connected right-hand member and described mudjack of described outlet valve left end and pipeline is connected, and described recovery bin is placed in pipeline afterbody;
Data acquisition process mechanism, comprise electromagnetic flowmeter, pressure unit, data cable, central processing unit, it is inner that described electromagnetic flowmeter is placed in pipeline left end head straight length, described pressure unit is evenly arranged in described pipe interior six place and six position, place elevations are consistent, and described central processing unit is connected with described electromagnetic flowmeter, pressure unit respectively by data cable.
Preferably, described mudjack is centrifugal pump, and its left end is connected with outlet valve, and right-hand member is connected with operation valve.
Preferably, described pipe diameter experimentally requires 40mm, 50mm, 60mm tri-kinds altogether, and its total length is 15m.
Preferably, it is inner that described electromagnetic flowmeter is placed in pipeline left end head straight length, is connected with central processing unit by data cable.
Preferably, described pressure unit is evenly arranged in described pipe interior six place and six position, place elevations are consistent, is connected with central processing unit by data cable.
Compared with existing slurry critical flow velocity mensuration, the utility model tool has the following advantages:
The crude tailings consolidation discharge slurry critical flow velocity measuring system that the utility model is addressed, to be uniformly distributed in pipeline by six and to be positioned at the pressure unit of same elevation, measure the pressure value P 1 ~ P6 of slurry in pipeline, get rid of two groups of data of going variance maximum, the minimum differntial pressure Δ P/L between certain duct length L can be calculated, unit kPam
-1; The pipeline flow Qm corresponding to minimum differntial pressure can be recorded by electromagnetic flowmeter, thus obtain the critical flow velocity of slurry under the conveying of this caliber
the utility model with reference to but not exclusively rely on the experimental formula of critical flow velocity, consider the physical property of caliber, slurry concentration and discharge tailings to the impact of critical flow velocity in slurry pipeline steel process, can according to the tailings actual conditions in different mine, carry out test simulation, for the transportation problem in consolidation discharge technology, there is actual directive significance.
Accompanying drawing explanation
Fig. 1 is the workflow schematic diagram of crude tailings consolidation discharge slurry critical flow velocity measuring system
In figure: 1-water tank; 2-crude tailings storehouse; 3-jelling agent storehouse; 4-weighing device; 5-stirring machine; 6-kiln basin; 7-operation valve; 8-pump; 9-electromagnetic flowmeter; 10-pipeline; 11-pressure unit; 12-data cable; 13-central processing unit; 14-recovery bin; 15-pump discharge valve; 16-conduit.
Embodiment
Below the utility model is described further, but protection domain of the present utility model is not limited to the scope of following described embodiment.
Shown in composition graphs 1, a kind of crude tailings consolidation discharge slurry critical flow velocity measuring system, ingredient sector, described water tank, crude tailings storehouse, jelling agent storehouse are connected with weighing device respectively by respective conduit; Rabbling mechanism, it is inner that described stirring machine is placed in described kiln basin, and described kiln basin is placed near described weighing device; Cemented filling mechanism, described mudjack is connected bottom pond by described operation valve and material, and be connected right-hand member and described mudjack of described outlet valve left end and pipeline is connected, and described recovery bin is placed in pipeline afterbody; Data acquisition process mechanism, it is inner that described electromagnetic flowmeter is placed in pipeline left end head straight length, described pressure unit is evenly arranged in described pipe interior six place and six position, place elevations are consistent, and described central processing unit is connected with described electromagnetic flowmeter, pressure unit respectively by data cable.
Described data handling system can realize the online record of surveyed data, comprises the functions such as real time data, history curve, data computing, map data and system exit.
Get certain ore deposit crude tailings consolidation discharge slurry as test specimen, crude tailings grain class distribution in table 1, this tailings real density γ
kfor 2.8gcm
-3, jelling agent is the novel gelled material N.T.C.-I of preparation, and volume is 4.5%, and slurry concentration is 73%-78%.
Table 1
The using method of above-mentioned crude tailings consolidation discharge slurry critical flow velocity test macro is:
A, system debug: by complete for each for system equipment connection, add clear water and run this system 3-5min in HJB-180 Double-layer vertical stirring machine (height 1100mm, diameter 1800mm);
Prepared by b, slurry: the clear water in discharge line, adds each raw material in stirring machine from water tank, crude tailings storehouse and jelling agent storehouse, prepares concentration and is 73% and density is homogeneous, the slurry of good fluidity;
C, preset flow gradient: according to crude tailings physico-mechanical properties, calculate this tailings weighted average diameter dp=0.176mm, slurry proportion γ
j=1.148t/m
3, application gram promise Lodz formula
calculate, as caliber Dl=50mm, slurry critical flow velocity vl=1.289ms
-1, pipeline flow Qj=0.0025m3s
-1.Preset the flow gradients Qn corresponding to several flow velocitys;
D, test phase: close the outlet valve 15 on mudjack (GIW-LCC-M200), open motor, opens outlet valve, allow slurry in pipeline, flow 1-2min with the bubble in fully discharge system after pump machine 8 runs well.Regulate outlet valve 15 to change mudjack flow to minimum flow gradient Q1, record electromagnetic flowmeter 9 and pressure unit 11 data, then change flow until test all flow gradients, each gradient continuance test 20s.Change slurry concentration, repeated test;
E, test terminate: slurry is completed rear clean water system;
F, digital independent: from data acquisition system (DAS), read electromagnetic flowmeter (ORBLDBE type) flow value is Q1=8.0m
3/ h, Q2=8.5m
3/ h, Q3=9.0m
3/ h, Q4=9.5m
3/ h, Q5=10.0m
3/ h, Q6=10.5m
3/ h.Minimum differntial pressure can be obtained and be respectively P31=129.8kPa, P32=124.4kPa, P33=118.7kPa from pressure unit (YBY type), P34=112.9kPa, P35=107.kPa, P36=102.3kPa, Δ P3=27.5kPa, Δ P3/L=1.833kPa/m; P41=132.1kPa, P42=126.2kPa, P43=120.4kPa, P44=114.3kPa, P45=108.5kPa, P46=102.7kPa, Δ P=29.4kPa, Δ P4/L=1.96kPa/m;
G, calculating slurry critical flow velocity: corresponding to minimum differntial pressure down-off Q3, Q4 that step (6) obtains, flow velocity is respectively
When slurry concentration be 73%, pipe diameter size be 50mm time, the critical flow velocity vl of conveying can choose between 1.282 ~ 1.353m/s;
H, integral experiment are complete, dismounting native system, and are preserved by each mechanism seals.
Claims (5)
1. a crude tailings consolidation discharge slurry critical flow velocity measuring system, is characterized in that: described crude tailings consolidation discharge slurry critical flow velocity measuring system comprises:
Ingredient sector, comprises water tank, crude tailings storehouse, jelling agent storehouse, weighing device, conduit, and described water tank, crude tailings storehouse, jelling agent storehouse are connected with weighing device respectively by respective conduit;
Rabbling mechanism, comprises stirring machine, kiln basin, and it is inner that described stirring machine is placed in described kiln basin, and described kiln basin is placed near described weighing device;
Cemented filling mechanism, comprise operation valve, mudjack, outlet valve, pipeline, recovery bin, described mudjack is connected bottom pond by described operation valve and material, and be connected right-hand member and described mudjack of described outlet valve left end and pipeline is connected, and described recovery bin is placed in pipeline afterbody;
Data acquisition process mechanism, comprise electromagnetic flowmeter, pressure unit, data cable, central processing unit, it is inner that described electromagnetic flowmeter is placed in pipeline left end head straight length, described pressure unit is evenly arranged in described pipe interior six place and six position, place elevations are consistent, and described central processing unit is connected with described electromagnetic flowmeter, pressure unit respectively by data cable.
2. crude tailings consolidation discharge slurry critical flow velocity measuring system according to claim 1, is characterized in that: described mudjack is centrifugal pump, and its left end is connected with outlet valve, and right-hand member is connected with operation valve.
3. crude tailings consolidation discharge slurry critical flow velocity measuring system according to claim 1, is characterized in that: described pipe diameter experimentally requires 40mm, 50mm, 60mm tri-kinds altogether, and its total length is 15m.
4. crude tailings consolidation discharge slurry critical flow velocity measuring system according to claim 1, is characterized in that: it is inner that described electromagnetic flowmeter is placed in pipeline left end head straight length, is connected with central processing unit by data cable.
5. crude tailings consolidation discharge slurry critical flow velocity measuring system according to claim 1, is characterized in that: described pressure unit is evenly arranged in described pipe interior six place and six position, place elevations are consistent, is connected with central processing unit by data cable.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520135196.5U CN204439660U (en) | 2015-03-10 | 2015-03-10 | A kind of crude tailings consolidation discharge slurry critical flow velocity measuring system |
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|---|---|---|---|
| CN201520135196.5U CN204439660U (en) | 2015-03-10 | 2015-03-10 | A kind of crude tailings consolidation discharge slurry critical flow velocity measuring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817751A (en) * | 2017-11-23 | 2018-03-20 | 广东惠利普路桥信息工程有限公司 | A kind of mixing plant managing and control system |
| CN117104890A (en) * | 2023-09-08 | 2023-11-24 | 哈尔滨工业大学（威海） | Variable-mass steady-state conveying intermediate bin and speed-dependent variable control method realized by same |
-
2015
- 2015-03-10 CN CN201520135196.5U patent/CN204439660U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817751A (en) * | 2017-11-23 | 2018-03-20 | 广东惠利普路桥信息工程有限公司 | A kind of mixing plant managing and control system |
| CN117104890A (en) * | 2023-09-08 | 2023-11-24 | 哈尔滨工业大学（威海） | Variable-mass steady-state conveying intermediate bin and speed-dependent variable control method realized by same |
| CN117104890B (en) * | 2023-09-08 | 2024-05-03 | 哈尔滨工业大学（威海） | Variable-mass steady-state conveying intermediate bin and speed-dependent variable control method realized by same |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20170310 |
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| CF01 | Termination of patent right due to non-payment of annual fee |