WO2019062280A1 - 料浆流变特性测试系统 - Google Patents

料浆流变特性测试系统 Download PDF

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Publication number
WO2019062280A1
WO2019062280A1 PCT/CN2018/095472 CN2018095472W WO2019062280A1 WO 2019062280 A1 WO2019062280 A1 WO 2019062280A1 CN 2018095472 W CN2018095472 W CN 2018095472W WO 2019062280 A1 WO2019062280 A1 WO 2019062280A1
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Prior art keywords
tank
slurry
stirred tank
driving device
testing system
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PCT/CN2018/095472
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English (en)
French (fr)
Inventor
于润沧
谢盛青
施士虎
朱维根
朱瑞军
贺茂坤
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中国恩菲工程技术有限公司
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Priority claimed from CN201721246384.0U external-priority patent/CN207197980U/zh
Priority claimed from CN201710884619.7A external-priority patent/CN107525741A/zh
Application filed by 中国恩菲工程技术有限公司 filed Critical 中国恩菲工程技术有限公司
Priority to AU2018339848A priority Critical patent/AU2018339848B2/en
Priority to US16/617,711 priority patent/US11047785B2/en
Priority to CA3064472A priority patent/CA3064472C/en
Publication of WO2019062280A1 publication Critical patent/WO2019062280A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
    • G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
    • G01N11/08—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by measuring pressure required to produce a known flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties

Definitions

  • the invention relates to the field of rheological property measuring devices, and in particular to a slurry rheological property testing system.
  • the industrial tailings cement slurry is prepared by mixing tailings, cementing materials and water.
  • the laboratory measurement methods for rheological properties are roughly divided into capillary method, falling body method, rotating method, flat plate method and vibration method. However, these methods are limited to the limitations and effects of the accuracy of the test instrument, the range of variation of the transport speed, and the measured parameters do not necessarily completely reflect the rheological properties of the slurry.
  • the large-scale industrial loop test system was designed according to the laying conditions of the pipeline in the Huize lead-zinc mine, Jinchuan nickel mine and Dongguashan copper mine. It can be seen from the test results that the data collected by the test has a large degree of dispersion, and some of the measured points even have irregularities in pressure changes. This is because the traditional loop test system uses a piston pump to simulate a high-pressure environment.
  • the stroke of the pump is periodic
  • the change and transmission of the pressure of the pipeline system is also periodic, but the fluctuation of the flow, the fluctuation of the pressure and There is no strict time period, but the way to collect data is to select data strictly according to a fixed time interval in one cycle. Therefore, the collected data will have a phenomenon of pressure change and fluid mechanics theory, which cannot meet the test requirements.
  • the test system requires a lot of manpower, material and financial resources, and the test cycle is relatively long, which affects the progress and planning of the test.
  • the present invention aims to solve at least one of the technical problems existing in the prior art.
  • the present invention provides a slurry rheological property testing system, wherein the slurry rheological property testing system has relatively accurate measurement parameters, a short test cycle, and a low test cost.
  • a slurry rheological property testing system includes: a first stirred tank, the first stirred tank is provided with a first material port; and a second stirred tank is provided with a second stirring tank a feed port, the feed pipe is respectively connected to the first port and the second port; a driving device, the driving device is respectively connected to the first agitating tank and the second a stirring tank connected, the driving device having a first state of driving the slurry in the first stirring tank toward the second stirring tank, the driving device having a slurry direction driving the second stirring tank a second state of the first agitator output, the driving device being configured to at least cyclically switch between the first state and the second state; a pressure detecting member for measuring the The amount of pressure in the delivery line.
  • the slurry rheological property testing system of the embodiment of the present invention since the first agitating tank and the second agitating tank can act as a conveying device under the action of the quantity device, the reuse of the slurry is realized, and the slurry is avoided. Waste, reduce the cost of the test, improve the test efficiency, and shorten the test cycle.
  • the slurry rheological property testing system of the embodiment of the present invention can perform a plurality of tests very conveniently, the researcher can eliminate systematic errors and human errors based on a large amount of test data to improve the test accuracy.
  • the drive device includes an air compressor coupled to the first stirred tank and the second stirred tank to drive slurry flow by adjusting air pressure.
  • the driving device further includes: a gas storage tank connected between the first stirring tank, the second stirring tank and the air compressor.
  • a first regulating valve for adjusting a gas flow rate is disposed between the air compressor and the first stirring kettle;
  • a second regulating valve for adjusting the flow rate of the air is provided between the air compressor and the second agitating tank.
  • the plurality of pressure detecting members are plural, and the plurality of pressure detecting members are spaced apart along a length direction of the delivery duct.
  • the slurry rheological property testing system further includes: a control device electrically connected to the first agitating tank and the second agitating tank to adjust the first a stirring speed of the stirred tank and the second stirred tank; the control device is electrically connected to the driving device to adjust an operating state of the driving device; the control device is electrically connected to the pressure detecting member to record the pressure detecting The data collected.
  • control device may further control the pressure of the switch of the first stirred tank and the second stirred tank, the first stirred tank and the second stirred tank Pressing and stopping of the pressure and atmospheric agitation tanks.
  • control device may also monitor the liquid level change in the first stirred tank and the second stirred tank in real time, monitor and output the pressure detection on the delivery pipeline in real time. The pressure change of the piece.
  • the slurry rheological property testing system further includes: an atmospheric pressure agitation tank connected to the first stirred tank to provide a slurry.
  • the slurry rheological property testing system further includes: a delivery valve, the delivery valve being disposed between the atmospheric pressure agitation tank and the first stirred tank.
  • the feed conduit extends between the first stirred tank and the second stirred tank to extend the length of the feed conduit.
  • the delivery conduit is provided with the pressure sensing member adjacent the first port, the second port, and the pipe bend.
  • FIG. 1 is a schematic view showing the overall structure of a slurry rheological property testing system according to an embodiment of the present invention.
  • a first stirred tank 10 a first stirred tank 10
  • a first port 110 a first regulating valve 120
  • a second stirred tank 20 a second port 210, a second regulating valve 220, a delivery pipe 30,
  • Atmospheric stirring tank 50 feed valve 510
  • a slurry rheological property testing system 1 includes a first agitating vessel 10, a second agitating vessel 20, a delivery conduit 30, a driving device 40, and a pressure detecting member 60.
  • the first agitating tank 10 is provided with a first port 110
  • the second agitating tank 20 is provided with a second port 210
  • the conveying pipe 30 is connected to the first port 110 and the second port 210, respectively.
  • the driving device 40 is connected to the first agitating tank 10 and the second agitating tank 20, respectively.
  • the driving device 40 has a first state for driving the slurry in the first agitating tank 10 to be output toward the second agitating tank 20, and the driving device 40 has a driving state.
  • the driving device 40 In a second state in which the slurry in the stirred tank 20 is output toward the first stirred tank 10, the driving device 40 is configured to be at least cyclically switchable in the first state and the second state.
  • the pressure detecting member 60 is used to measure the magnitude of the pressure in the delivery conduit 30.
  • first stirred tank 10 and the second stirred tank 20 are connected by a feed pipe 30, and the driving device 40 can output the slurry from the first stirred tank 10 to the second stirred tank 20, or the slurry can be
  • the second stirred tank 20 is output to the first stirred tank 10. Therefore, during the test, the first stirred tank 10 and the second stirred tank 20 can be mutually connected to each other, and the slurry is transported in multiple times.
  • the pressure detecting member 60 can collect the slurry in real time. The pressure change in the material pipe 30.
  • the slurry rheological property testing system 1 of the embodiment of the invention can realize the reuse of the slurry, improve the efficiency of repeated tests, shorten the test period, avoid waste of slurry, and reduce the test cost.
  • the slurry rheological property testing system 1 of the embodiment of the present invention can perform a plurality of tests very conveniently, the researcher can eliminate system errors and human errors based on a large amount of test data to improve the test accuracy.
  • the slurry rheological property testing system 1 of the embodiment of the present invention since the first agitating tank 10 and the second agitating tank 20 can act as a conveying device under the action of the quantity device, the reuse of the slurry is realized, and the avoidance is avoided. The slurry waste is reduced, the test cost is reduced, the test efficiency is improved, and the test cycle is shortened. In addition, since the slurry rheological property testing system 1 of the embodiment of the present invention can perform a plurality of tests very conveniently, the researcher can eliminate system errors and human errors based on a large amount of test data to improve the test accuracy.
  • drive unit 40 includes an air compressor 410 that is coupled to first stirred tank 10 and second stirred tank 20 to drive slurry flow by adjusting air pressure.
  • air compressor 410 needs to be in communication with the first stirred tank 10 to input compressed air into the first stirred tank 10, This can increase the gas pressure in the first stirred tank 10, so that the gas pressure in the first stirred tank 10 is higher than that in the second stirred tank 20, and the slurry can flow toward the second stirred tank 20 under the action of the pressure difference.
  • the gas pressure in the first stirred tank 10 is high and the slurry is incompressible, the slurry at the bottom of the first stirred tank 10 can enter the feed pipe 30 in a desired slurry flow state.
  • the air pressure is used as the power to uniformly output the slurry to the first stirred tank 10, and the measured test parameters are relatively stable, and the obtained data is closer to the actual production.
  • the driving device 40 further includes a gas storage tank 420 connected between the first agitating tank 10, the second agitating tank 20, and the air compressor 410.
  • the pressure of the gas delivered by the air compressor 410 during operation may be fluctuating, and the speed of the air delivered by the air compressor 410 is slow, and a large amount of gas cannot be delivered into the stirred tank in a short time. Therefore, when the air tank 420 is disposed between the agitating tank and the air compressor 410, the air compressor 410 inputs compressed air into the air tank 420, and the compressed air passes through the air tank 420 and enters the stirring tank, and the airflow is relatively stable. Gas pressure fluctuations are small. Thereby, the slurry can be conveyed more uniformly, and the test parameters are improved.
  • the driving device 40 is not limited to the air compressor 410 and the air tank 420 structure, and may have other forms.
  • the driving device 40 is formed as a lifting device, and the lifting device drives the first stirring kettle 10 to move with the second stirring.
  • the kettle 20 is formed to have a height difference, and the slurry flows into the second stirred tank 20 from the first stirred tank 10 by gravity or flows into the first stirred tank 10 from the second stirred tank 20.
  • a first regulating valve 120 for adjusting the air flow is disposed between the air compressor 410 and the first agitating tank 10, and a second adjustment for adjusting the air flow is provided between the air compressor 410 and the second agitating tank 20.
  • Valve 220 Therefore, it is possible to realize that the air compressor 410 inputs air into only one agitating tank. Specifically, when the slurry needs to be transported from the first agitating tank 10 to the second agitating tank 20, it is necessary to open the first regulating valve 120 and close.
  • the second regulator valve 220 is configured to deliver the compressed air to the first agitator 10 from the air compressor 410.
  • the first regulating valve 120 and the second regulating valve 220 are pneumatic regulating valves. Simple and quick control is achieved with a pneumatic air regulator. And it has high safety performance with pneumatic control valve, so there is no need to install explosion-proof device on the regulating valve.
  • the first regulating valve 120 and the second regulating valve 220 are solenoid valves. Since the solenoid valve can realize different control schemes in combination with different circuits, the use of the solenoid valve as the regulating valve can achieve a plurality of gas transmission results, thereby making the slurry rheological property testing system 1 have a variety of conveying environments.
  • the first regulating valve 120 and the second regulating valve 220 are manual regulating valves. Thereby, the cost of the slurry rheological property testing system 1 can be reduced.
  • the plurality of pressure detecting members 60 are plural, and the plurality of pressure detecting members 60 are spaced apart along the length direction of the delivery duct 30. This makes it possible to measure multiple sets of data in one test and improve test efficiency.
  • the slurry rheological property testing system 1 further includes a control device 70 electrically connected to the first stirred tank 10 and the second stirred tank 20, respectively, to adjust the first stirred tank. 10 and the stirring speed of the second stirred tank 20.
  • Control device 70 is electrically coupled to drive device 40 to regulate the operational state of drive device 40.
  • the control device 70 is electrically connected to the pressure detecting member 60 to record the collected data of the pressure detecting member 60.
  • the slurry rheological property testing system 1 further includes a liquid level detecting member (not shown) for detecting the slurry level in the first stirred tank 10 and the second stirred tank 20.
  • the liquid level detecting member is electrically connected to the control device 70, and the control device 70 can control the operating states of the driving device 40, the first agitating tank 10, and the second agitating tank 20 based on the measurement data of the liquid level detecting member.
  • control device 70 adopts a PLC control system
  • the PLC control system can control the driving stop of the driving device 40, the pressure in the kettle of the stirred tank, and can also collect the liquid level change in the kettle and the pressure in the kettle.
  • Basic parameters such as conditions, pipeline pressure changes, and a USB interface are reserved for researchers to export data for analysis.
  • the slurry rheological property testing system 1 further includes an atmospheric pressure agitation vessel 50 coupled to the first agitator vessel 10 to provide a slurry.
  • an atmospheric pressure agitation vessel 50 coupled to the first agitator vessel 10 to provide a slurry.
  • the atmospheric pressure agitation tank 50 is used to transport the slurry to the first agitating tank 10, and the slurry can be stirred before being conveyed to make it closer to the actual working condition.
  • the atmospheric agitating tank 50 can also be connected to the second stirred tank 20 to provide a slurry.
  • the conveying device is not limited to the atmospheric pressure agitation tank 50, and may be other means such as a feed pump.
  • the slurry rheology test system 1 further includes a feed valve 510 disposed between the atmospheric agitation tank 50 and the first stirred tank 10.
  • a feed valve 510 disposed between the atmospheric agitation tank 50 and the first stirred tank 10.
  • the feed conduit 30 extends between the first stirred tank 10 and the second stirred tank 20 to extend the length of the feed conduit 30.
  • the installation space is provided for arranging the plurality of pressure detecting members 60, and the distance between the adjacent two pressure detecting members 60 can be ensured, thereby making the measurement data more representative.
  • the delivery conduit 30 is provided with a pressure sensing member 60 adjacent the first port 110, the second port 210, and the pipe bend.
  • the pressure detecting member 60 can measure the pressure data at the outlet, the curve, and the end of the pipeline, so that the data range is wide and the data precision is higher.
  • control device 70 can also control the opening and closing of the lids of the first stirred tank 10 and the second stirred tank 20, the pressurization and pressure relief of the first stirred tank 10 and the second stirred tank 20, and the atmospheric pressure. Driving and parking of the agitation tank 50.
  • control device 70 can also monitor the surface change of the liquid in the first stirred tank 10 and the second stirred tank in real time, and monitor and output the pressure change of the pressure detecting member 20 on the delivery pipe 30 in real time. .
  • the delivery conduit 30 may be composed of a plurality of sub-pipe segments having different pipe diameters, thereby further expanding the range of test data.
  • a slurry rheological property testing system 1 of one embodiment of the present invention will now be described with reference to FIG.
  • the slurry rheological property testing system 1 of the present embodiment includes a first agitating vessel 10, a second agitating vessel 20, a delivery conduit 30, a normal pressure agitation vessel 50, a driving device 40, and a pressure detecting member 60. And control device 70.
  • the first agitating tank 10 is provided with a first port 110
  • the second agitating tank 20 is provided with a second port 210
  • the conveying pipe 30 is connected to the first port 110 and the second port 210, respectively.
  • the atmospheric pressure stirring tank 50 is connected to the first stirred tank 10 to deliver the slurry to the first stirred tank 10, and a feed valve 510 is provided between the atmospheric stirring tank 50 and the first stirred tank 10.
  • the driving device 40 includes an air compressor 410 and a gas storage tank 420.
  • the air compressor 410 is connected to the gas storage tank 420.
  • the gas storage tank 420 is connected to the first stirring tank 10 and the second stirring tank 20, respectively, and the gas storage tank 420 is respectively
  • a first regulator valve 120 and a second regulator valve 220 are provided between the first stirred tank 10 and the second stirred tank 20.
  • the control device 70 is a PLC system, and is electrically connected to the first stirred tank 10 and the second stirred tank 20, respectively, to adjust the stirring speed of the first stirred tank 10 and the second stirred tank 20, and the control device 70 is electrically connected to the driving device 40.
  • the operating state of the driving device 40 is adjusted, and the control device 70 is electrically connected to the pressure detecting member 60 to record the collected data of the pressure detecting member 60.
  • the delivery pipe 30 extends between the first agitating tank 10 and the second agitating tank 20 to form a "U-shaped".
  • the first pressure detecting member 610 is disposed adjacent to the first port 110 on the feeding pipe, adjacent to A fifth pressure detecting member 650 is disposed at the second port 210.
  • a third pressure detecting member 630 is disposed at a corner of the conveying pipe 30, and a second pressure detecting member 620 and a fourth pressure detecting member 640 are symmetrically disposed at the corner and the exiting curve.
  • the first pressure detecting member 610 has a measured value of P1
  • the second pressure detecting member 620 has a measured value of P2
  • the third pressure detecting member 630 has a measured value of P3, and the fourth pressure detecting member.
  • the measured value of 640 is P4
  • the measured value of the fifth pressure detecting member 650 is P5.
  • J1, J2, J2, J4 are the resistance along the pipe flow, the unit is MPa;
  • L1, L2, L3, and L4 are the distances for adjacent pressure detection, and the unit is m. That is, L1 is the distance between the first pressure detecting member 610 and the second pressure detecting member 620, and so on, L2, L3, L4 and the like.
  • the slurry rheological property testing system 1 of the present embodiment has the following advantages:
  • Adjustable compressed air is used as the external power source.
  • the slurry of different properties in the closed stirred tank can flow in the pipeline at different rates.
  • the stirred tank + the delivery pipe 30 constitutes a closed system, and the compressed air is supplied by the gas storage tank 420 so that the slurry has a certain initial potential energy, and the slurry can be stably transported in the delivery pipe 30 under the action of the compressed air.
  • the pressure detecting member 60 is disposed along the conveying pipe 30, and the pressure detecting member 60 can automatically collect the pressure data and transmit the pressure data to the control system, and the pressure and the pressure difference of each test point can be automatically monitored and calculated;
  • the slurry rheological property testing system 1 of the present embodiment can simulate the slurry self-flow conveying under high pressure environment, and determine the rheological properties of the slurry by using the pipeline conveying parameters, and the data obtained by the method is closest to the actual production and has strong adaptability.
  • the utility model has the advantages of high practical value and accurate and reliable data.
  • the slurry flow state analysis is the basic data for related research. It has wider application in various industries, especially in the mining field. This patent has great market promotion value.

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Abstract

一种料浆流变特性测试系统(1)，包括第一搅拌釜(10)、第二搅拌釜(20)、输料管道(30)、驱动装置(40)和压力检测件(60)。驱动装置(40)具有驱动第一搅拌釜(10)内的浆料朝向第二搅拌釜(20)输出的第一状态和驱动第二搅拌釜(20)内的浆料朝向第一搅拌釜(10)输出的第二状态。压力检测件(60)用于测量输料管道(40)中的压力大小。

Description

料浆流变特性测试系统 技术领域
本发明涉及流变特性测量设备领域，尤其涉及一种料浆流变特性测试系统。
背景技术
工业用尾砂胶结料浆由尾砂、胶凝材料、水混合搅拌制备而成，其流变特性实验室测量方法大致分为毛细管法、落体法、旋转法、平板法、振动法等。但这些方法限于测试仪器的精度、输送速度的变化范围等限制和影响，测得的参数不一定完全真实反映料浆的流变特性。
会泽铅锌矿、金川镍矿、冬瓜山铜矿等矿山为了测定管道输送过程中料浆流变参数，根据井下管路敷设情况，设计了大型工业环管试验系统。从试验结果可以看出该试验采集的数据离散度大，部分测点甚至出现压力变化无规律性。这是由于传统的环管试验系统采用活塞泵来模拟高压环境，由于泵的冲程是周期性的，所以管路系统的压力的变化与传递也是周期性的，然而流量的波动，压力的波动并没有严格的时间周期，但采集数据的方式是在一个周期内严格按照固定的时间间隔来选择数据，因此采集的数据会出现压力变化规律与流体力学理论不符合现象，如此不能满足试验需求。同时该试验系统需要耗费大量的人力、物力和财力，试验周期也比较长，影响试验的进度和规划。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明提出一种料浆流变特性测试系统，所述料浆流变特性测试系统测量参数较为精准，试验周期较短，试验成本较低。
根据本发明实施例的料浆流变特性测试系统，包括：第一搅拌釜，所述第一搅拌釜上设有第一料口；第二搅拌釜，所述第二搅拌釜上设有第二料口；输料管道，所述输料管道分别与所述第一料口和所述第二料口相连；驱动装置，所述驱动装置分别与所述第一搅拌釜和所述第二搅拌釜相连，所述驱动装置具有驱动所述第一搅拌釜内的浆料朝向所述第二搅拌釜输出的第一状态，所述驱动装置具有驱动所述第二搅拌釜内的浆料朝向所述第一搅拌釜输出的第二状态，所述驱动装置至少构造成可在所述第一状态和所述第 二状态中循环切换；压力检测件，所述压力检测件用于测量所述输料管道中的压力大小。
根据本发明实施例的料浆流变特性测试系统，由于第一搅拌釜和第二搅拌釜在数量装置的作用下可以互相充当输料装置，实现了对料浆的重复利用，避免了料浆浪费，降低了试验成本，提高了试验效率，缩短了试验周期。此外由于本发明实施例的料浆流变特性测试系统可以非常方便地进行多次试验，因此，研究人员可以根据大量的试验数据剔除系统误差和人为误差以提高试验精度。
在一些实施例中，所述驱动装置包括：空气压缩机，所述空气压缩机与所述第一搅拌釜和所述第二搅拌釜相连以通过调节气压来驱动浆料流动。
具体地，所述驱动装置还包括：储气罐，所述储气罐连接在所述第一搅拌釜、所述第二搅拌釜与所述空气压缩机之间。
具体地，所述空气压缩机与所述第一搅拌釜之间设有用于调节气流量的第一调节阀；
所述空气压缩机与所述第二搅拌釜之间设有用于调节气流量的第二调节阀。
在一些实施例中，所述压力检测件为多个，多个所述压力检测件沿所述输料管道的长度方向间隔开设置。
在一些实施例中，所述的料浆流变特性测试系统，还包括：控制装置，所述控制装置分别与所述第一搅拌釜、所述第二搅拌釜电连接以调节所述第一搅拌釜和第二搅拌釜的搅拌速度；所述控制装置与所述驱动装置电连接以调节所述驱动装置的运行状态；所述控制装置与所述压力检测件电连接以记录所述压力检测件的采集数据。
在一些实施例中，所述控制装置还可以控制所述第一搅拌釜和所述第二搅拌釜的釜盖的开关、所述第一搅拌釜和所述第二搅拌釜的增压和泄压、以及常压搅拌槽的开车和停车。
在一些可选的实施例中，所述控制装置还可以实时监测所述第一搅拌釜和所述第二搅拌釜内液面变化情况、实时监测并输出所述输料管道上所述压力检测件的压力变化情况。
在一些实施例中，所述的料浆流变特性测试系统，还包括：常压搅拌槽，所述常压搅拌槽与所述第一搅拌釜相连以提供浆料。
可选地，所述的料浆流变特性测试系统，还包括：输料阀，所述输料阀设在所述常压搅拌槽与所述第一搅拌釜之间。
在一些实施例中，所述输料管道在所述第一搅拌釜和所述第二搅拌釜之间蜿蜒延伸以延长所述输料管道的长度。
在一些实施例中，所述输料管道在邻近所述第一料口、所述第二料口处以及管路弯道处均设有所述压力检测件。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是本发明实施例的料浆流变特性测试系统的整体结构示意图。
附图标记：
料浆流变特性测试系统1、
第一搅拌釜10、第一料口110、第一调节阀120、
第二搅拌釜20、第二料口210、第二调节阀220、输料管道30、
驱动装置40、空气压缩机410、储气罐420、
常压搅拌槽50、输料阀510、
压力检测件60、第一压力检测件610、第二压力检测件620、第三压力检测件630、第四压力检测650、第五压力检测件660、控制装置70。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
下面参考图1描述根据本发明实施例的料浆流变特性测试系统1的具体结构。
如图1所示，根据本发明实施例的料浆流变特性测试系统1包括第一搅拌釜10、第二搅拌釜20、输料管道30、驱动装置40和压力检测件60。第一搅拌釜10上设有第一料口110，第二搅拌釜20上设有第二料口210，输料管道30分别与第一料口110和第二料口210相连。驱动装置40分别与第一搅拌釜10和第二搅拌釜20相连，驱动装置40具有驱动第一搅拌釜10内的浆料朝向第二搅拌釜20输出的第一状态，驱动装置40具有驱动第二搅拌釜20内的浆料朝向第一搅拌釜10输出的第二状态，驱动装置40至少构造成可在第一状态和第二状态中循环切换。压力检测件60用于测量输料管道30中的压力大小。
可以理解的是，第一搅拌釜10和第二搅拌釜20通过输料管道30相连，驱动装置40可以将料浆由第一搅拌釜10输出到第二搅拌釜20，也可以将料浆由第二搅拌釜20输出到第一搅拌釜10。由此，在试验过程中，第一搅拌釜10和第二搅拌釜20可以互为输料装置，完成多次料浆的输送，在输料过程中压力检测件60可以实时采集料浆在输料管道30中的压力变化情况。因此，本发明实施例的料浆流变特性测试系统1可以实现对料浆的重复利用，提高了多次重复试验的效率，缩短了试验周期，避免了料浆浪费，降低了试验成本。此外，由于本发明实施例的料浆流变特性测试系统1可以非常方便地进行多次试验，因此，研究人员可以根据大量的试验数据剔除系统误差和人为误差以提高试验精度。
根据本发明实施例的料浆流变特性测试系统1，由于第一搅拌釜10和第二搅拌釜20在数量装置的作用下可以互相充当输料装置，实现了对料浆的重复利用，避免了料浆浪费，降低了试验成本，提高了试验效率，缩短了试验周期。此外由于本发明实施例的料浆流变特性测试系统1可以非常方便地进行多次试验，因此，研究人员可以根据大量的试验数据剔除系统误差和人为误差以提高试验精度。
在一些实施例中，如图1所示，驱动装置40包括空气压缩机410，空气压缩机410与第一搅拌釜10和第二搅拌釜20相连以通过调节气压来驱动浆料流动。可以理解的是，当需要将第一搅拌釜10作为第二搅拌釜20的输料装置时，需要将空气压缩机410与第一搅拌釜10连通以向第一搅拌釜10内输入压缩空气，这样可以使得第一搅拌釜10内的气压升高，从而使得第一搅拌釜10内的气压高于第二搅拌釜20，料浆在压差的作用下就可以朝向第二搅拌釜20流动。此外，在运输过程中，由于第一搅拌釜10内的气压较高，且料浆具有不可压缩性，第一搅拌釜10底部的料浆能够以理想的料浆流态进入输料管道30，这样以空气压力作为动力使得料浆可以均匀地输出第一搅拌釜10，测得的试验参数相对稳定，取得数据更加接近于实际生产。
具体地，如图1所示，驱动装置40还包括储气罐420，储气罐420连接在第一搅拌釜10、第二搅拌釜20与空气压缩机410之间。可以理解的是，空气压缩机410在工作过程中输送的气体压力会存在压力波动的情况，且空气压缩机410的输送空气的速度较慢，不能在短时间内向搅拌釜内输送大量的气体。因此在搅拌釜和空气压缩机410之间设置有储气罐420时，空气压缩机410向储气罐420中输入压缩空气，压缩空气经过储气罐420再进入搅拌釜中，气流较为平稳，气体压力波动较小。由此，使得料浆能够较为均匀地被输送，提高了试验参数。
当然，驱动装置40并不限于空气压缩机410和储气罐420结构，还可以有其他形 式，例如，驱动装置40形成为升降装置，升降装置驱动第一搅拌釜10运动以实现与第二搅拌釜20形成高度差，料浆在重力的作用下由第一搅拌釜10流入第二搅拌釜20或者由第二搅拌釜20流入第一搅拌釜10。
具体地，空气压缩机410与第一搅拌釜10之间设有用于调节气流量的第一调节阀120，空气压缩机410与第二搅拌釜20之间设有用于调节气流量的第二调节阀220。由此可以实现空气压缩机410仅向一个搅拌釜中输入空气，具体而言，当料浆需要从第一搅拌釜10输送到第二搅拌釜20中时，需要打开第一调节阀120，关闭第二调节阀220以实现空气压缩机410朝向第一搅拌釜10输送压缩空气。
可选地，第一调节阀120和第二调节阀220为气动调节阀。采用气动调气阀可以实现简单、快捷的控制。并且有与气动调节阀具有较高的安全性能，因此无需在调节阀上安装防爆装置。
可选地，第一调节阀120和第二调节阀220为电磁阀。由于电磁阀配合不同的电路可以实现不同的控制方案，因此采用电磁阀作为调节阀可以实现多种输气结果，由此使得料浆流变特性测试系统1可以具有多种多样的输料环境。
可选地，第一调节阀120和第二调节阀220为手动调节阀。由此，可以将降低料浆流变特性测试系统1的成本。
在一些实施例中，压力检测件60为多个，多个压力检测件60沿输料管道30的长度方向间隔开设置。由此可以实现在一次检测中可以测量多组数据，提高试验效率。
在一些实施例中，如图1所示，料浆流变特性测试系统1还包括控制装置70，控制装置70分别与第一搅拌釜10、第二搅拌釜20电连接以调节第一搅拌釜10和第二搅拌釜20的搅拌速度。控制装置70与驱动装置40电连接以调节驱动装置40的运行状态。控制装置70与压力检测件60电连接以记录压力检测件60的采集数据。由此可以实现试验过程自动化控制，研究员可以根据需要设置试验参数，实现试验条件多样化，扩大了试验数据范围，提高了试验效率。
可选地，料浆流变特性测试系统1还包括液面高度检测件(图未示出)用以检测第一搅拌釜10和第二搅拌釜20内的料浆液面高度。液面高度检测件与控制装置70电连接，控制装置70可以根据液面高度检测件的测量数据控制驱动装置40、第一搅拌釜10和第二搅拌釜20的运行状态。
在一些可选地实施例中，控制装置70采用PLC控制系统，PLC控制系统可对驱动装置40的开车停车、搅拌釜的釜内压力进行控制，还可以采集釜内液位变化、釜内压力情况、管路压力变化等基础参数，并预留USB接口，便于研究员将数据导出分析。
在一些实施例中，如图1所示，料浆流变特性测试系统1还包括常压搅拌槽50，常压搅拌槽50与第一搅拌釜10相连以提供浆料。可以理解的是，根据前文所述在试验进行中第一搅拌釜10和第二搅拌釜20可以互为输料装置，那么在可知在试验开始之前需要将第一搅拌釜10内充满料浆。采用常压搅拌槽50作为向第一搅拌釜10输送料浆，可以在输送之前先对料浆进行搅拌以使其更贴近实际工况。当然，常压搅拌槽50也可以与第二搅拌釜20相连以提供料浆。此外，输料装置并不限于常压搅拌槽50，还可以是其他输料泵等装置。
可选地，料浆流变特性测试系统1还包括输料阀510，输料阀510设在常压搅拌槽50与第一搅拌釜10之间。根据前文所述，试验进行中第一搅拌釜10和第二搅拌釜20可以互为输料装置，也就是说试验开始进行后常压搅拌槽50不需要再向第一搅拌釜10内输送料浆，因此设置输料阀510可以在试验开始后将常压搅拌槽50与第一搅拌釜10断开，这样可以节省料浆，避免料浆浪费，降低试验成本。
在一些实施例中，输料管道30在第一搅拌釜10和第二搅拌釜20之间蜿蜒延伸以延长输料管道30的长度。由此，为布置多个压力检测件60提供了安装空间，并且能够保证相邻的两个压力检测件60的距离，由此使得测量数据更具代表性。
在一些实施例中，输料管道30在邻近第一料口110、第二料口210处以及管路弯道处均设有压力检测件60。由此，压力检测件60可以测量管路出口、弯道处、末端的压力数据，使得数据范围广，数据精度更高。
在一些实施例中，控制装置70还可以控制第一搅拌釜10和第二搅拌釜20的釜盖的开关、第一搅拌釜10和第二搅拌釜20的增压和泄压、以及常压搅拌槽50的开车和停车。
在一些可选的实施例中，控制装置70还可以实时监测第一搅拌釜10和第二搅拌釜内液20面变化情况、实时监测并输出输料管道30上压力检测件20的压力变化情况。
可选地，输料管道30可以由多个管径不同的子管段组成，由此可以进一步扩大试验数据范围。
下面参考图1描述本发明一个具体实施例的料浆流变特性测试系统1。
如图1所述，本实施例的料浆流变特性测试系统1包括第一搅拌釜10、第二搅拌釜20、输料管道30、常压搅拌槽50、驱动装置40、压力检测件60和控制装置70。
第一搅拌釜10上设有第一料口110，第二搅拌釜20上设有第二料口210，输料管道30分别与第一料口110和第二料口210相连。常压搅拌槽50与第一搅拌釜10相连以向第一搅拌釜10输送料浆，且常压搅拌槽50与第一搅拌釜10之间设有输料阀510。
驱动装置40包括空气压缩机410和储气罐420，空气压缩机410与储气罐420相连，储气罐420分别与第一搅拌釜10和第二搅拌釜20相连，且储气罐420分别与第一搅拌釜10和第二搅拌釜20之间设有第一调节阀120和第二调节阀220。
控制装置70为PLC系统，且分别与第一搅拌釜10、第二搅拌釜20电连接以调节第一搅拌釜10和第二搅拌釜20的搅拌速度，控制装置70与驱动装置40电连接以调节驱动装置40的运行状态，控制装置70与压力检测件60电连接以记录压力检测件60的采集数据。
输料管道30在第一搅拌釜10和第二搅拌釜20之间蜿蜒延伸，形成为“U型”，输料管上临近第一料口110处设有第一压力检测件610，临近第二料口210处设有第五压力检测件650。输料管道30的弯道处设有第三压力检测件630，进入弯道和离开弯道处对称地设有第二压力检测件620和第四压力检测件640。
根据试验设计和实测的测点压力值，假定第一压力检测件610测量值为P1，第二压力检测件620测量值为P2，第三压力检测件630测量值为P3，第四压力检测件640测量值为P4，第5压力检测件650测量值为P5，
共计算了四种流向的管流沿程阻力：
(1)水平直管阻力：
J1＝△P1/L1
(2)水平弯头阻力：
J2＝(△P2-J1×0.7)/2
(3)水平弯头阻力：
J3＝(△P3-J1×0.7)/2
(4)水平直管阻力：
J4＝△P4/L4
式中：J1，J2，J2，J4为管流沿程阻力，单位为MPa；
△P1,△P2,△P3，△P4为相邻传压力检测件60的压力差，单位为MPa。即△P1＝P2-P1，△P2,△P3，△P4以此类推。
L1，L2，L3，L4为相邻压力检测将的距离，单位为m。即L1为第一压力检测件610和第二压力检测件620之间的距离，L2，L3，L4以此类推。
本实施例的料浆流变特性测试系统1具有以下优点：
1、采用可调节的压缩空气作为外部动力源，密闭搅拌釜中的不同性质料浆可以以不同速率在管路中流动。
2、测试中搅拌釜+输料管道30组成密闭系统，压缩空气由储气罐420供应使得料浆具有一定的初始势能，在压缩空气作用下料浆能够在输料管道30中稳定输送。
3、输料管道30沿程设置压力检测件60，压力检测件60可自动采集压力数据并传至控制系统，各测试点压力及压差可自动监测和计算；
4、系统中采用两台搅拌釜，测试过程中第一搅拌釜10和第二搅拌釜20可以实现功能互换，提高试验效率。
本实施例的料浆流变特性测试系统1可以模拟高压环境下料浆自流输送，利用管路输送参数确定料浆流变特性，采用此法获得的数据，最接近生产实际，具有适应性强，实用价值高，数据准确可靠的优点。料浆流态分析是从事相关研究的基础数据，在各行业特别是矿山领域有较广泛的运用，本专利具有较大的市场推广价值。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (10)

  1. 一种料浆流变特性测试系统，其特征在于，包括：
    第一搅拌釜，所述第一搅拌釜上设有第一料口；
    第二搅拌釜，所述第二搅拌釜上设有第二料口；
    输料管道，所述输料管道分别与所述第一料口和所述第二料口相连；
    驱动装置，所述驱动装置分别与所述第一搅拌釜和所述第二搅拌釜相连，所述驱动装置具有驱动所述第一搅拌釜内的浆料朝向所述第二搅拌釜输出的第一状态，所述驱动装置具有驱动所述第二搅拌釜内的浆料朝向所述第一搅拌釜输出的第二状态，所述驱动装置至少构造成可在所述第一状态和所述第二状态中循环切换；
    压力检测件，所述压力检测件用于测量所述输料管道中的压力大小。
  2. 根据权利要求1所述的料浆流变特性测试系统，其特征在于，所述驱动装置包括：空气压缩机，所述空气压缩机与所述第一搅拌釜和所述第二搅拌釜相连以通过调节气压来驱动浆料流动。
  3. 根据权利要求2所述的料浆流变特性测试系统，其特征在于，所述驱动装置还包括：储气罐，所述储气罐连接在所述第一搅拌釜、所述第二搅拌釜与所述空气压缩机之间。
  4. 根据权利要求2所述的料浆流变特性测试系统，其特征在于，
    所述空气压缩机与所述第一搅拌釜之间设有用于调节气流量的第一调节阀；
    所述空气压缩机与所述第二搅拌釜之间设有用于调节气流量的第二调节阀。
  5. 根据权利要求1所述的料浆流变特性测试系统，其特征在于，所述压力检测件为多个，多个所述压力检测件沿所述输料管道的长度方向间隔开设置。
  6. 根据权利要求1所述的料浆流变特性测试系统，其特征在于，还包括：控制装置，所述控制装置分别与所述第一搅拌釜、所述第二搅拌釜电连接以调节所述第一搅拌釜和第二搅拌釜的搅拌速度；所述控制装置与所述驱动装置电连接以调节所述驱动装置的运行状态；所述控制装置与所述压力检测件电连接以记录所述压力检测件的采集数据。
  7. 根据权利要求1所述的料浆流变特性测试系统，其特征在于，还包括：常压搅拌槽，所述常压搅拌槽与所述第一搅拌釜相连以提供浆料。
  8. 根据权利要求7所述的料浆流变特性测试系统，其特征在于，还包括：输料阀，所述输料阀设在所述常压搅拌槽与所述第一搅拌釜之间。
  9. 根据权利要求1所述的料浆流变特性测试系统，其特征在于，所述输料管道在所述第一搅拌釜和所述第二搅拌釜之间蜿蜒延伸以延长所述输料管道的长度。
  10. 根据权利要求1所述的料浆流变特性测试系统，其特征在于，所述输料管道在邻近所述第一料口、所述第二料口处以及管路弯道处均设有所述压力检测件。
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