CN212110140U - Mud gun mud-beating amount monitoring device - Google Patents

Abstract

The utility model discloses a mud gun mud-beating amount monitoring device, which comprises a turbine flowmeter and a reversing valve, wherein an oil inlet of the turbine flowmeter is communicated to an oil outlet of a mud gun mud-beating rod cavity oil return pipeline through an oil pipe, an oil outlet of the turbine flowmeter is communicated to a side port of the reversing valve through an oil pipe, the other side port of the reversing valve is communicated to an oil inlet of a mud gun mud-beating rod cavity oil return pipeline through an oil pipe, the turbine flowmeter is connected with a controller and is communicated to a mud gun mud-beating rod cavity oil return pipeline through the turbine flowmeter and the reversing valve, the oil return amount in the mud gun mud-beating rod cavity oil return pipeline mud-beating process is monitored in real time, the real-time monitoring of the mud gun mud-beating amount can be realized, the oil return pipeline is ensured to be stable in the mud-beating process by utilizing the reversing valve, the mud gun is prevented from being interfered by reverse return oil to the, is convenient to be installed and maintained.

Description

Mud gun mud-beating amount monitoring device

Technical Field

The utility model belongs to metallurgical equipment, concretely relates to mud gun mud beating amount monitoring devices.

Background

The clay gun is a key device in the front of a blast furnace. The mud beating amount of the mud gun directly influences the labor intensity and the cost when the taphole is opened, the mud beating amount is accurately controlled, the stability of the taphole depth can be guaranteed, and the method is an important measure for maintaining the taphole. Most of the existing mud guns can not realize accurate measurement through rough estimation of a dial or a scale and the like, so that the problems of too much and too little mud beating, multiple iron notch opening, drill rod damage and the like are caused. Meanwhile, when the hydraulic mud gun works on site, the mud amount cannot be observed in a short distance due to severe environments such as high temperature, dust, molten iron splashing and the like on site. Therefore, the accurate measurement of the mud beating amount is very important for blast furnace ironmaking production. The existing mud gun mainly realizes the estimation of the mud beating amount by installing a stroke indicator at the tail end of a rodless cavity of a mud beating oil cylinder, when mud is beaten, a piston rod drives a pulley to rotate through a steel wire rope, the pulley drives a pointer of the stroke indicator to move up and down to estimate the effective stroke of the piston rod, and the stroke of the piston rod is multiplied by the area of the mud cylinder, so that the mud beating amount is estimated. The mud beating amount is inaccurate in measurement, the drill rod is easily damaged by opening for many times, the mud beating amount is inconvenient to observe and cannot be stored, the mud beating amount cannot be transmitted to a blast furnace production system, the labor intensity and the cost of stokehold workers are increased, the stability of the depth of an iron notch cannot be guaranteed, the service life of the blast furnace is shortened, and the automation and intelligence degrees are low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mud gun mud beating amount monitoring devices to overcome prior art's is not enough.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a mud gun mud-shooting amount monitoring devices, includes turbine flowmeter and switching-over valve, and turbine flowmeter's oil inlet communicates through oil pipe to the oil-out of mud gun pole chamber oil return line, and turbine flowmeter's oil-out communicates through oil pipe to one side port of switching-over valve, and another side port of switching-over valve communicates through oil pipe to the oil inlet of mud gun pole chamber oil return line, and turbine flowmeter is connected with the controller.

Furthermore, the controller adopts a PLC controller, and the reversing valve is connected to the controller.

Furthermore, the controller is connected with a touch display control screen.

Furthermore, the device also comprises an oil return pipeline connected with the turbine flowmeter in parallel, the two ends of the oil return pipeline are respectively communicated with the oil inlet and the oil outlet of the turbine flowmeter, a first control valve is arranged on the oil return pipeline, and a second control valve is arranged at the oil outlet end of the turbine flowmeter.

Furthermore, the first control valve and the second control valve are both solenoid valves, and both the first control valve and the second control valve are connected to the controller.

Furthermore, a pressure gauge and a hydraulic lock are arranged on a pipeline for communicating the turbine flowmeter and the reversing valve, and the pressure gauge is connected to the controller.

Compared with the prior art, the utility model discloses following profitable technological effect has:

the utility model relates to a mud gun mud-beating amount monitoring device, including turbine flowmeter and switching-over valve, the oil inlet of turbine flowmeter communicates to the oil-out of mud gun mud-beating rod cavity oil return pipeline through oil pipe, the oil-out of turbine flowmeter communicates to one side port of switching-over valve through oil pipe, another side port of switching-over valve communicates to the oil inlet of mud gun mud-beating rod cavity oil return pipeline through oil pipe, turbine flowmeter is connected with the controller, communicate to mud gun mud-beating rod cavity oil return pipeline through turbine flowmeter and switching-over valve, real-time monitoring mud gun mud-beating rod cavity oil return pipeline in-process, can realize the real-time monitoring of mud gun mud-beating amount, utilize the switching-over valve to ensure that the oil return pipeline is stable in-beating process, prevent mud-beating rod from being impacted reverse oil return and causing interference to turbine flowmeter, can accurate monitoring mud-beating, the original structure of the clay gun does not need to be changed, and the installation and maintenance are convenient; is beneficial to the control of a blast furnace production system, ensures the stability of the tapping depth and prolongs the service life of the blast furnace.

Furthermore, the controller adopts the PLC controller, and the switching-over valve is connected to the controller, utilizes the controller control switching-over valve, and degree of automation is high, and control accuracy is high.

Furthermore, the controller is connected with the touch display control screen, adopts the touch display control screen, is convenient for observe, improves the visual degree of beating mud.

Further, still include the oil return pipeline parallelly connected with the turbine flowmeter, the both ends of oil return pipeline communicate with the oil inlet and the oil-out of turbine flowmeter respectively, are equipped with first control valve on the oil return pipeline, and turbine flowmeter's oil outlet end is equipped with the second control valve, and the oil return pipeline is returned when utilizing to beat the mud pole return, prevents that the oil return from causing the damage to turbine flowmeter reverse impact, improves turbine flowmeter life.

Furthermore, the first control valve and the second control valve are both electromagnetic valves, automatic control is adopted, the precision is high, and the accuracy is good.

Further, a pressure gauge and a hydraulic lock are arranged on a pipeline communicated with the reversing valve, the pressure gauge is connected to the controller, reverse oil return can be effectively prevented, and monitoring precision is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein, 1, a turbine flowmeter; 2. a diverter valve; 3. an oil return pipeline of a mud gun mud-striking rod cavity; 4. a controller; 5. an oil return line; 6. a first control valve; 7. a second control valve; 8. a pressure gauge; 9. hydraulic locking; 10. and touching the display control screen.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings:

as shown in fig. 1, a mud gun mud-shooting amount monitoring device comprises a turbine flowmeter 1 and a reversing valve 2, wherein an oil inlet of the turbine flowmeter 1 is communicated to an oil outlet of a mud gun mud-shooting rod cavity oil return pipeline 3 through an oil pipe, an oil outlet of the turbine flowmeter 1 is communicated to one side port of the reversing valve 2 through an oil pipe, the other side port of the reversing valve 2 is communicated to an oil inlet of the mud gun mud-shooting rod cavity oil return pipeline 3 through an oil pipe, and the turbine flowmeter 1 is connected with a controller 4.

The controller 4 adopts a PLC controller, the reversing valve 2 is connected to the controller 4, and the switching direction state of the reversing valve 2 is controlled through the controller 4. The controller 4 is connected with the touch display control screen 10, be used for the oil return volume of real-time display mud gun mud beating rod chamber oil return pipeline 3, the oil return volume size that mud gun mud beating rod chamber oil return pipeline 3 is mud gun mud beating volume promptly, its principle is that the volume that utilizes mud gun mud beating volume is incompressible, mud gun mud beating in-process mud beating rod removes mud beating volume the same with mud gun mud beating rod chamber oil return volume, therefore, this application adopts turbine flowmeter 1 and switching-over valve 2 to communicate to mud gun mud beating rod chamber oil return pipeline 3, the oil return volume of real-time supervision mud gun mud beating rod chamber oil return pipeline 3 mud beating in-process, can realize the real-time supervision of mud gun mud beating volume, this device simple structure, need not change the original structure of mud gun, be convenient for install in the maintenance.

The turbine flowmeter further comprises an oil return pipeline 5 connected with the turbine flowmeter 1 in parallel, two ends of the oil return pipeline 5 are communicated with an oil inlet and an oil outlet of the turbine flowmeter 1 respectively, a first control valve 6 is arranged on the oil return pipeline 5, and a second control valve 7 is arranged at an oil outlet end of the turbine flowmeter 1.

The first control valve 6 and the second control valve 7 are electromagnetic valves, and the first control valve 6 and the second control valve 7 are connected to the controller 4. When in mud beating, the first control valve 6 is closed, the second control valve 7 is opened, and the mud beating rod moves to enable the oil mass of the mud gun mud beating rod cavity oil return pipeline 3 to pass through the turbine flowmeter 1; when the oil return pipeline 3 of the mud gun mud-beating rod cavity returns oil reversely, the first control valve 6 is opened, the second control valve 7 is closed, and the damage to the reverse impact of the oil return on the turbine flowmeter 1 is prevented, so that the service life of the turbine flowmeter is influenced.

And a pressure gauge 8 and a hydraulic lock 9 are arranged on a pipeline for communicating the turbine flowmeter 1 with the reversing valve 2, the pressure gauge 8 is connected to the controller 4, and the oil pressure condition of the mud gun mud-striking rod cavity oil return pipeline 3 is monitored through the pressure gauge 8. The hydraulic lock 9 and the reversing valve 2 are combined to ensure that the oil pressure of the oil return pipeline 3 of the mud gun mud-striking rod cavity is stable, so that reverse oil return is prevented.

When the mud beating condition is met and mud beating is started, the effective stroke of a piston rod of the mud gun for beating mud is equal to the accumulated value of flow divided by the difference between the section area of the rodless cavity and the section area of the piston rod, the effective stroke multiplied by the area of the mud cylinder is the mud beating volume, the effective stroke multiplied by the density of mud bags is the real-time mud beating volume, and the real-time mud beating volume is stored and displayed in real time through the touch display control screen 10 by the controller 4. Touch display control screen 10 can set up 4 parameters of controller, inputs the radius of the rodless cavity of the mud-beating cylinder, the radius of the piston rod, the radius of the mud cylinder on touch display control screen 10, effective mud-beating pressure, the lowest flow value and the highest pressure of the rotary gun, when the pressure of the rotary gun reaches the highest pressure, the mud-beating pressure is greater than the effective value, and when the flow is greater than the lowest flow, the mud-beating condition is satisfied promptly, and the mud can be beaten. The touch display control screen 10 communicates with the controller 4 through a serial port RS485 to transmit real-time data, and parameters can be set and displayed on the touch screen or initialized. The controller 4 converts the real-time mud beating amount into a 4-20mA current signal through an analog output module to be output, the signal is connected to an analog input port of the touch display control screen 10, a mud beating amount zero clearing button is arranged on a mud beating amount detection operation box, a touch display control screen 10 closing button is arranged on the touch display control screen, the controller 4 and the touch screen are both arranged on the mud beating amount detection operation box, and the operation box is arranged near a valve table.

The controller 4 communicates with the central control room through the Ethernet, and transmits the real-time mud beating amount to the central control room so as to be observed at any time. The current values of the parameters displayed on the touch display control screen 10 are not affected by system power failure, when the system is powered off, the values are stored and memorized without losing, and if calibration is needed, the current values can be manually reset.

The controller 4 adopts Siemens S7-300, and selects 1 digital quantity input module, 1 digital quantity output module, one analog quantity input module, one analog quantity output module and one DP communication module.

The touch display control screen 10 adopts an SMART LINE IE touch screen, is simple and visual, is powerful in function, is connected with a PLC in a high-speed seamless mode, is very suitable for application of human-computer interfaces in small automation, can be provided with gun rotating pressure, mud beating pressure, tapping machine pressure, trolley pressure and target mud beating amount on the touch screen, can display real-time detection values of all pressures and oil return flow, integrates an RS422/RS485 communication port, enables communication to be more flexible, and can be stably and reliably connected with the small PLC in the market mainstream.

This detection device combines together turbine flowmeter 1, controller 4 and touch display control screen 10 to realize that the stokehold mud gun beats the mud volume and detects, and the device detects the accuracy, and the installation of being convenient for is convenient for, is convenient for observe, and degree of automation is high.

Claims (6)

1. The utility model provides a mud gun mud-shooting amount monitoring devices, a serial communication port, including turbine flowmeter (1) and switching-over valve (2), the oil inlet of turbine flowmeter (1) communicates through oil pipe to the oil-out of mud gun mud-shooting rod chamber oil return pipeline (3), the oil-out of turbine flowmeter (1) communicates through oil pipe to one side port of switching-over valve (2), the opposite side port of switching-over valve (2) communicates through oil pipe to the oil inlet of mud gun mud-shooting rod chamber oil return pipeline (3), turbine flowmeter (1) is connected with controller (4).

2. A mud-stemming amount monitoring device according to claim 1, wherein the controller (4) is a PLC controller, and the reversing valve (2) is connected to the controller (4).

3. The mud stemming amount monitoring device for the mud gun according to claim 1, wherein a touch display control screen (10) is connected to the controller (4).

4. The mud stemming amount monitoring device for the mud gun according to claim 1, further comprising an oil return pipeline (5) connected in parallel with the turbine flowmeter (1), wherein two ends of the oil return pipeline (5) are respectively communicated with an oil inlet and an oil outlet of the turbine flowmeter (1), the oil return pipeline (5) is provided with a first control valve (6), and an oil outlet end of the turbine flowmeter (1) is provided with a second control valve (7).

5. A monitor for the amount of mud stemming according to claim 1, wherein the first control valve (6) and the second control valve (7) are solenoid valves, and the first control valve (6) and the second control valve (7) are connected to the controller (4).

6. The mud stemming amount monitoring device for the mud gun according to claim 1, wherein a pressure gauge (8) and a hydraulic lock (9) are arranged on a pipeline of the turbine flowmeter (1) communicated with the reversing valve (2), and the pressure gauge (8) is connected to the controller (4).

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