CN201924038U

CN201924038U - Return control system of rotary furnace

Info

Publication number: CN201924038U
Application number: CN2010206842208U
Authority: CN
Inventors: 刘立峰; 于淼; 赵奕
Original assignee: China ENFI Engineering Corp
Current assignee: China ENFI Engineering Corp
Priority date: 2010-12-27
Filing date: 2010-12-27
Publication date: 2011-08-10
Anticipated expiration: 2020-12-27

Abstract

The utility model provides a return control system of a rotary furnace. The return control system of the rotary furnace comprises the rotary furnace, a motor controlling the rotation of the rotary furnace, an angle detector, a blow valve and an emptying valve which control the air volume of the rotary furnace and a controller, wherein when the controller judges that the rotary furnace rotates to a first angle, the controller opens the blow valve and closes the emptying valve, controls the rotary furnace to rotate to a second angle, and controls the rotary furnace to rotate to a third angle from the second angle when a technological detection value reaches a set value and controls a sealed fume hood dolly to be lowered to a lower limit position, and simultaneously the rotary furnace rotates to a fourth angle from the third angle. In the embodiment of the utility model, the safety and the reliability of the present rotary furnace operation can be improved, not only the automation level of the rotary furnace operation is improved and the labor intensity of operators is reduced, but also the accident of air hole blockage caused by incorrect manipulation can be effectively avoided.

Description

Converter melt down Controlling System

Technical field

The utility model relates to metallurgical the manufacturing and design field, and particularly a kind of converter melts down Controlling System.

Background technology

Converter smelting is one of the most frequently used smelting process of non-ferrous metal metallurgy.The body of heater of converter is cylindrical, and liner adopts refractory materials, by the chemical reaction heat heating, does not need external heat source during blowing, is present important steelmaking equipment, also can be used for the smelting of non-ferrous metals such as copper, nickel.Mainly to take manual operation be main in the control of melting down of present converter, but this not only causes operative employee's labour intensity big, and occur mishandle easily when fatigue is operated, and the mishandle meeting causes irritating the generation of accidents such as the dead eye of wind.

The utility model content

The purpose of this utility model is intended to solve at least one of above-mentioned technological deficiency, particularly proposes a kind of Controlling System of melting down of converter.

For achieving the above object, the utility model has proposed a kind of Controlling System of melting down of converter on the one hand, comprising: converter; Control the motor that described converter is rotated, described motor via reducer links to each other with the rotating shaft of described converter; Angle detector, described angle detector are positioned on the described rotating shaft, in order to detect the current angle of described converter; Control the blow valve and the blow-off valve of described converter air quantity; Controller, described controller and described angle detector, described blow valve, described blow-off valve links to each other with described motor, control is melted down in described converter, when judging that described converter turns over first angle, open described blow valve and close described blow-off valve, and control described converter and turn to second angle, and after described technology detected value reaches described set(ting)value, control described converter from described second angular turn to the third angle degree, and control sealing petticoat pipe dolly is transferred to lower limit when described third angle is spent, and converter simultaneously turns to the 4th angle from described third angle degree.

In an embodiment of the present utility model, described angle detector comprises encoder and cam operated contoller.

In an embodiment of the present utility model, described controller stops described converter and rotates and wait for when judging that described technology detected value does not reach described set(ting)value.

In an embodiment of the present utility model, this system also comprises ash damper and retaining vent motor, and described ash damper and retaining vent motor are controlled the ash damper and the retaining vent of described converter; And oxygen control valve, described oxygen control valve is controlled the oxygen-supplying amount of described converter.

In an embodiment of the present utility model, described controller links to each other with described oxygen control valve with retaining vent motor with described ash damper, described controller is after described converter reaches the 4th angle, judge further whether described converter verts in Preset Time, if judge that described converter is verted in described Preset Time, then described controller is controlled described ash damper and retaining vent motor cuts out ash damper and keeps off vent and control described oxygen control valve and open.

The utility model embodiment is by being associated air feed, oxygen supply etc. with the converter angle, thereby control the process of melting down of converter automatically, can improve the security and the reliability of converter current operation, and improved converter automation of operation level, alleviate operator's labour intensity, effectively avoided the dead eye of wind accident of filling that causes owing to mishandle.In addition, in the utility model embodiment, the mode that adopts encoder to combine with cam operated contoller detects the angle of converter in real time, thereby improves accuracy of detection.

Additional aspect of the utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.

Description of drawings

The utility model above-mentioned and/or additional aspect and advantage from obviously and easily understanding becoming the description of embodiment, wherein below in conjunction with accompanying drawing:

Fig. 1 melts down the Controlling System structure iron for the utility model embodiment converter; With

Fig. 2 is the control flow chart of the utility model embodiment controller to the process of melting down.

Embodiment

Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the utility model, and can not be interpreted as restriction of the present utility model.

As shown in Figure 1, melt down the Controlling System structure iron for the utility model embodiment converter.Need to prove; in the utility model embodiment, four angles are set for melting down of converter; as first angle to the, four angles; certainly those skilled in the art also can select to increase the angle number of setting; thereby raising control accuracy; certainly those skilled in the art also can reduce the angle number of setting, and these all should be included within the protection domain of the present utility model.This system comprises that converter 10, converter have rotating shaft 20, motor 30, step-down gear 40, controller 50, angle detector 60, blow valve 71 and blow-off valve 72, ash damper and retaining vent motor 80 and oxygen control valve 90.Wherein, retaining vent and ash damper be all at the back side of converter mouth, is used to prevent that liquation from splashing out from fire door causes personnel's injury.Wherein, controller 50 links to each other with oxygen control valve 90 with angle detector 60, blow valve 71, blow-off valve 72, ash damper and retaining vent motor 80 respectively.Motor 30 links to each other with the rotating shaft 20 of converter 10 by step-down gear 40 and rotates with the control converter.Angle detector 60 is positioned on the rotating shaft 20, in order to detect the current angle of converter 10.In preferred embodiment of the present utility model, angle detector 60 can comprise encoder and cam operated contoller.Detect the angle of converter in real time by the mode that adopts encoder to combine, thereby improve accuracy of detection with cam operated contoller.The air quantity of blow valve 71 and blow-off valve 72 control converters 10.The ash damper of ash damper and 80 pairs of converters 10 of retaining vent motor and retaining vent are controlled.The oxygen-supplying amount of 90 pairs of converters 10 of oxygen control valve is controlled.Control is melted down in 50 pairs of converters 10 of controller, when judging that converter 10 turns over first angle, open blow valve and close described blow-off valve, and control converter 10 turns to second angle, and after the technology detected value reaches described set(ting)value, to the third angle degree, and control sealing petticoat pipe dolly is transferred to lower limit when described third angle is spent from second angular turn in control converter 10, and converter simultaneously turns to the 4th angle from described third angle degree.Wherein, first angle to the, four angles can specifically be provided with according to the difference of technology.

In an embodiment of the present utility model, controller 50 stops converter 10 and rotates and wait for when judging that the technology detected value does not reach set(ting)value.

In an embodiment of the present utility model, controller 40 is after converter 10 reaches the 4th angle, judge further whether converter 10 verts in Preset Time, if judge that converter 10 is not verted in Preset Time, then controller 40 control ash dampers and retaining vent motor 80 are closed ash damper and retaining vent and are opened oxygen control valve 90.

As shown in Figure 2, be the control flow chart of the utility model embodiment controller to the process of melting down.The Controlling System of melting down in conjunction with Fig. 1 may further comprise the steps:

Step S101 begins to melt down operation, and detects the current angle of converter.In the utility model embodiment, the mode that adopts encoder to combine with cam operated contoller detects the angle of converter in real time, thereby improves accuracy of detection.

Step S102 carries out the speedup operation to gas blower.

Step S103 judges whether converter turns over first angle.

Step S104 if judge that converter turns over first angle, then opens blow valve and closes blow-off valve, causes fan trouble to prevent valve from not moving, and makes blower fan carry out the normal running putting in blast.

Step S105, the opened smoke-discharging valve, from a security perspective, this exhaust smoke valve can be controlled by the DCS of sulfate system, thus the interlocked control between the realization system.

Step S106 controls described converter and goes to the parking of second angle.

Step S107 judges in residing second angle of converter whether the technology detected value reaches set(ting)value, for example judges that whether the technology detected value is greater than set(ting)value.If judgement technology detected value less than set(ting)value, then stops the converter rotation and waits for.

Step S108, then controls converter and upwards goes to the third angle degree greater than set(ting)value if judge the technology detected value.When converter was in third angle and spends, controller control sealing petticoat pipe continued to drop to lower limit.

Step S109, the control converter goes to the 4th angle, and after converter is reaching the 4th angle, judges whether described converter verts in Preset Time, if judge that described converter is verted in described Preset Time, then close ash damper and retaining vent and open oxygen control valve.In the utility model embodiment, also can carry out speedup to induced-draft fan.

Step S110 is positioned at the blowing position scope in converter, shakes body of heater and adjusts angle, as long as turndown is no more than limit position, then can be confirmed to be the equipment fine setting.

When converter was rotated, ash damper and retaining vent motor were just changeing startup, opened ash damper and retaining vent (body of heater stopped operating 5 seconds after, ash damper and retaining vent are closed automatically).

In the utility model embodiment, by air feed, oxygen supply etc. is associated with the converter angle, thereby control the process of melting down of converter automatically, can improve the security and the reliability of converter current operation, but also improved converter automation of operation level, alleviate operator's labour intensity, effectively avoided the dead eye of wind accident of filling that causes owing to mishandle.In addition, in the utility model embodiment, the mode that adopts encoder to combine with cam operated contoller detects the angle of converter in real time, thereby improves accuracy of detection.

Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification that scope of the present utility model is by claims and be equal to and limit to these embodiment.

Claims

A converter melt down Controlling System, it is characterized in that, comprising:

Converter;

Control the motor that described converter is rotated, described motor via reducer links to each other with the rotating shaft of described converter;

Angle detector, described angle detector are positioned on the described rotating shaft, in order to detect the current angle of described converter;

Control the blow valve and the blow-off valve of described converter air quantity;

Controller, described controller and described angle detector, described blow valve, described blow-off valve links to each other with described motor, described controller melts down control to described converter, described controller is when judging that described converter turns over first angle, open described blow valve and close described blow-off valve, and control described converter and turn to second angle, and described controller is after described technology detected value reaches described set(ting)value, control described converter from described second angular turn to the third angle degree, and control sealing petticoat pipe dolly is transferred to lower limit when described third angle is spent, and converter simultaneously turns to the 4th angle from described third angle degree.
Converter as claimed in claim 1 melt down Controlling System, it is characterized in that described angle detector comprises encoder and cam operated contoller.
Converter as claimed in claim 1 melt down Controlling System, it is characterized in that described controller stops described converter and rotates and wait for when judging that described technology detected value does not reach described set(ting)value.
Converter as claimed in claim 1 melt down Controlling System, it is characterized in that, also comprise:

Ash damper and retaining vent motor, described ash damper and retaining vent motor are controlled the ash damper and the retaining vent of described converter;

Oxygen control valve, described oxygen control valve is controlled the oxygen-supplying amount of described converter.
5. converter as claimed in claim 4 melts down Controlling System, it is characterized in that, described controller links to each other with described oxygen control valve with retaining vent motor with described ash damper, described controller is after described converter reaches the 4th angle, judge further whether described converter verts in Preset Time, if judge that described converter is verted in described Preset Time, then described controller is controlled described ash damper and retaining vent motor cuts out ash damper and keeps off vent and control described oxygen control valve and open.