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Device and method for controlling precision of automatic preparation of emulsion

A technology of precision control and automatic preparation, applied in chemical instruments and methods, mixing methods, transportation and packaging, etc., can solve the problem that the precision of emulsion preparation cannot be effectively guaranteed, the mass ratio of water and emulsified oil cannot be accurately measured, and it is difficult to realize real-time Controlling issues such as emulsion concentration

Inactive Publication Date: 2018-12-18
CHINA UNIV OF MINING & TECH
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Problems solved by technology

In addition, the emulsion is easy to lose a large amount during the operation of mine support equipment, and must be replenished in time, otherwise it will seriously affect the safe use of support equipment
[0003] Most of the existing emulsion preparation devices cannot accurately measure the mass ratio of water to emulsified oil, and the accuracy of emulsion preparation is difficult to be effectively guaranteed
In addition, the existing emulsion configuration device adopts the method of detecting the concentration of the emulsion first and then compensating the corresponding liquid, which makes it difficult to realize real-time control of the concentration of the added emulsion

Method used

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  • Device and method for controlling precision of automatic preparation of emulsion
  • Device and method for controlling precision of automatic preparation of emulsion
  • Device and method for controlling precision of automatic preparation of emulsion

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Embodiment

[0046] Generally, the concentration of the emulsion is required to be in the range of 3% to 5%. In this example, the mixing ratio K of emulsified oil and water is set to 4%. According to the actual situation of the field equipment, the upper limit H of the liquid level of the emulsion tank 12 is set. is 1.2 meters, the lower limit H of the liquid level is 0.3 meters, the delay error compensation time T is 15 seconds, and the error compensation coefficient A is 2.

[0047] According to the diameter of the water pipe on site, the pressure of the water source is adjusted to 0.3MPa through the pressure regulating valve 7, and the water flow Q water is basically kept at about 500Kg / h.

[0048] When working, the liquid level value H in the emulsion tank 12 is detected in real time by the liquid level detector 11. When H≤0.3m, the frequency conversion motor 4, the oil circuit solenoid valve 5 and the water filling solenoid valve 8 are turned on to start preparing the emulsion.

[004...

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Abstract

The invention discloses a device and a method for controlling the precision of automatic preparation of an emulsion. The device comprises a variable frequency motor driving oil pump, and the oil outlet of the oil pump and the liquid outlet end of a water supply pipeline are respectively connected with two liquid inlets of a mixer; the liquid outlet of the mixer is connected with an emulsion tank;an oil supply pipeline is sequentially serially connected with an oil way solenoid valve and an emulsion flow meter; the water supply pipeline is sequentially serially connected with a water adding solenoid valve and a water adding flow meter; the emulsion tank is provided with a liquid level detector; a controller is respectively connected with the emulsion flow meter, the oil way solenoid valve,the water adding flow meter, the liquid level detector and the water adding solenoid valve; and a variable frequency motor is connected with the controller through a PID adjusting module. The methodcomprises the following steps: setting of basic parameters; collection of real-time data; starting of the preparation of the emulsion; quick tracking of preset values; and stopping of the preparationof the emulsion. The device and the method have the advantages of accurateness in metering of a mass ratio of water to the emulsion, improvement of the preparation precision of the emulsion, and realization of real-time control the concentration of the added emulsion.

Description

technical field [0001] The invention belongs to the technical field of emulsion preparation, and in particular relates to an emulsion automatic preparation accuracy control device and a control method. Background technique [0002] As the transmission medium of the hydraulic system, the emulsion is widely used in mine support equipment and other fields. It not only plays the role of power transmission, but also plays the role of lubrication, cooling, anti-corrosion and anti-rust. Emulsion is a completely mixed liquid prepared by water and emulsified oil in a certain proportion. Whether its concentration is appropriate will directly affect the life cycle and production and operation costs of hydraulic props, hydraulic supports and other hydraulic components. In addition, the emulsion is easy to lose a large amount during the operation of mine support equipment, and must be replenished in time, otherwise it will seriously affect the safe use of support equipment. [0003] Mos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F3/08B01F15/00
CPCB01F23/41B01F35/2202Y02P70/10
Inventor 卢爱红茅献彪徐金海
Owner CHINA UNIV OF MINING & TECH
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