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Hot metal based hydraulic clay gun and use method

A liquid metal and hydraulic technology, applied to blast furnace parts, furnaces, blast furnace details, etc., can solve the problems of reducing lubrication performance, increasing system pressure loss, and reducing efficiency, so as to reduce the number of replacements, improve safety, and facilitate installation Effect

Pending Publication Date: 2019-01-15
YUNNAN KEWEI LIQUID METAL VALLEY R & D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when the pressure exceeds 30 MPa, the viscosity of the hydraulic oil increases greatly. Excessively high viscosity will increase the pressure loss of the system, reduce efficiency, make the system heat, and deteriorate the suction conditions of the oil pump; when the temperature rises from -5°C to At 60°C, the kinematic viscosity of the hydraulic oil will drop sharply from 1500cm2 / s to 30cm2 / s, and the viscosity of the hydraulic oil that is too small will increase the leakage, resulting in failure to complete the plugging, and even causing fire to burn the pipeline or equipment, affecting efficiency , will also reduce the lubricating performance
And the experiment shows that when the hydraulic oil temperature exceeds 55°C, the oxidation of the hydraulic oil will intensify. At this time, the service life of the hydraulic oil will be shortened by half for every 10°C increase in the temperature.

Method used

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  • Hot metal based hydraulic clay gun and use method
  • Hot metal based hydraulic clay gun and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1As shown, the present invention provides a hydraulic mud gun based on liquid metal, the hydraulic mud gun includes a controller, a first hydraulic cylinder 5, a second hydraulic cylinder 6, a first steering valve 1, a second steering valve 2, a A flow sensor, a second flow sensor, a first valve 7, a second valve 8, an inflow pipe 9, a return pipe 10, a liquid storage tank 12 filled with liquid metal 19, a heater 13 arranged on the liquid storage tank 12, The drive pump 11 that is arranged on the inflow pipe 9, the gun mechanism 3 that is connected with the piston rod of the first hydraulic cylinder 5, and the mud-beating mechanism 4 that is connected with the piston rod of the second hydraulic cylinder 6; One port a1, the second port b1, the third port c1, the fourth port d1 and the fifth port e1, the end of the first hydraulic cylinder 5 adjacent to the gun mechanism 3 communicates with the first port a1 of the first steering valve 1, the first port On...

Embodiment 2

[0055] Such as figure 2 Shown, the present invention also provides a kind of using method based on liquid metal hydraulic mud cannon, and this using method comprises the following steps:

[0056] S0, system initialization, and execute step S1;

[0057] S1. Obtain the temperature of the liquid metal 19 in the liquid storage tank 12, and jump to step S2;

[0058] S2. Determine whether the temperature of the liquid metal 19 is lower than the set temperature threshold, if so, skip to step S3, and otherwise skip to step S4;

[0059] S3, turn on the heater 13, and skip to step S0;

[0060] S4. Judging whether the gun-rotating mechanism 3 and the mud-beating mechanism 4 are to retreat, if so, skip to step S5, otherwise skip to step S6;

[0061] S5. Start the driving pump 11, open the first valve 7 and the second valve 8 at the same time, and control the communication between the first port a1 of the first steering valve 1 and the fourth port d1, and the second port b1 of the firs...

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Abstract

The invention relates to the technical field of smelting stokehold equipment, and provides a hot metal based hydraulic clay gun and an use method. The hydraulic clay gun comprises a controller, a first hydraulic cylinder, a second hydraulic cylinder, a first turning valve, a second turning valve, a first flow rate sensor, a second flow rat sensor, a first valve, a second valve, a flow-in pipe, a reflowing pipe, a storing box filled with hot metal, a heater arranged on the storing box, a driving pump arranged on the flow-in pipe, a gun transferring mechanism which is connected to a piston rod of the first hydraulic cylinder, and a clay injecting mechanism which is connected to a piston rod of the second hydraulic cylinder. According to the hot metal based hydraulic clay gun and the use method, the use method is carried out; the hot metal is used as a pressure transferring medium, so that the viscosity of the pressure transferring medium under high temperature basically remains, and as aresult, the safety of the hydraulic clay gun is greatly improved, and the leakage is avoided; the times of replacing the pressure transferring medium is greatly decreased; and the cost is saved.

Description

technical field [0001] The invention relates to the technical field of equipment in front of a smelting furnace, in particular to a hydraulic mud gun based on liquid metal and a method for using it. Background technique [0002] Hydraulic mud cannon, also known as blast furnace ironmaking mud cannon, ironmaking blast furnace plugging machine, blast furnace mud cannon, is the necessary pre-furnace equipment in the smelting industry. The function of the hydraulic mud gun is to quickly and accurately block the taphole after the iron is placed, so that the blast furnace can quickly enter the next cycle of operation. [0003] Existing hydraulic mud cannon is made up of parts such as gun turning mechanism, pressure gun mechanism, mud-beating mechanism, hydraulic station, operation table. Among them, the pressure transmission medium in the gun-rotating mechanism and the mud-beating mechanism is hydraulic oil, and the temperature and pressure have a great influence on the performan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B7/12
CPCC21B7/125
Inventor 蔡昌礼耿成都邓中山
Owner YUNNAN KEWEI LIQUID METAL VALLEY R & D CO LTD
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