KR20030053692A - Reciprocation type position detector for body of rotary kiln - Google Patents

Abstract

PURPOSE: A reciprocation type position detector for a rotary kiln is provided to continuously measure a position of the rotary kiln when the rotary kiln is reciprocated in an axial direction thereof. CONSTITUTION: A reciprocation type position detector includes a moving section, a fixing section and a control section. The moving section has moving rollers(301a,301b), a plurality of touch bars(307a,307d), and a moving plate(309). The moving rollers(301a,301b) make contact with lateral portions of tires in order to axially move together with a rotary kiln. The fixing section includes a plurality of supporting rollers(305a,305b) fixed to a base(310) so as to support a lower surface of the moving plate(309). A plurality of guide rollers(306a,306b) are fixed to the base(310) so as to support a lateral portion of the moving plate(309). A position detector(314) is installed on a rotating shaft of the supporting rollers(305a,305b). A plurality of limit sensors(308a,308d) are fixed to the base(310) so as to transmit signals to the control section.

Description

Reciprocation Type Position Detector for Rotary Kilns {Reciprocation Type Position Detector for Body of Rotary Kiln}

The present invention relates to a reciprocating furnace body position sensing device of a rotary kiln, and more particularly, when the furnace is moved in the axial direction when the rotational speed is fluctuated by a change in production of a high temperature kiln, the movement change can be accurately measured. It relates to a reciprocating furnace body position detection device of a rotary kiln.

In general, the rotary firing furnace 100 is a cylindrical structure having a length of about 36 to 50 m, as shown in FIG. 1, and is provided with a heat-resistant wire and a castable inside thereof, and protected by a driving surface. The tires 100a and 100b are mounted, and a ring gear 103b is mounted to the body in the middle.

The ring gear 103b is again engaged with the drive gear 103a, and the reduction gear 105 is connected to the shaft of the drive gear 103a, and the driving motor 106 which is easy to adjust the rotation speed is coupled to one shaft thereof. It is fastened by the ring (not shown).

The tires 100a and 100b are mounted on a plurality of support rows 104a to 104d in two rows and two rows arranged at regular intervals, so that the rotary kiln 100 is easily rotated.

The rotary firing furnace 100 configured as described above has a burner 102 embedded at one end thereof, and continuously rotates the rotary firing furnace 100 at a temperature of about 900 ° C. or higher to rotate the limestone embedded therein to fire the quicklime circuit.

The rotational speed of the rotary kiln 100 varies depending on the amount of quicklime produced. That is, when the inventory of quicklime produced in the rotary kiln 100 increases or decreases or equipment trouble occurs, a sudden change in the rotational speed is required.

However, such a change in the rotational speed causes the rotary kiln 100 to move in the axial direction. That is, the rotary firing furnace 100 is continuously moved in one direction in the axial direction or in the axial direction at a certain rotational speed. This causes an accident that the tires 100a and 100b are separated from the support pads 104a to 104d. Therefore, it is necessary to be prepared for measures to prevent departure.

Conventionally, a thrust roller (not shown) has been fixed to prevent such separation. This thrust roller is a horizontal roll, and is installed to prevent the upper and lower deviation of the furnace body of the rotary firing furnace 100.

However, if the rotary firing furnace 100, which is a heavy chain, overloads the support trolls 104a to 104d or the trust roller for a long time in one direction, damage to the support trolls 104a to 104d or the trust roller occurs. In this case, the production is stopped for a long time, the productivity is lowered, there is a problem of raising the manufacturing cost, such as maintenance costs.

On the other hand, Patent Application No. 2001-44967 "reciprocating movement control device of the rotary kiln" according to the surface state of the tire (100a, 100b) and the support trolley (104a to 104d) which is the driving surface of the rotary kiln 100 In view of the fact that the rotary kiln 100 can be controlled, as shown in FIG. 2, grease can be automatically applied to the support pads 104a to 104d to control the axial movement of the rotary kiln 100. Apparatuses 201-208 and movement monitoring apparatuses 209-214 are presented.

However, in the above technique, sliding bars 210 and 211 configured to be coupled to the matching grooves above and below the male and female while fixing the shaft moving roller 209 are used, and lubricants are required during the movement, causing a malfunction of the sensor due to load generation. Due to this, there is a problem in that the position of the rotary kiln 100 which is reciprocated in a high temperature state cannot be accurately sensed, and thus the position of the rotary kiln 100 can not be measured at an important time or the amount of grease applied cannot be controlled. .

The present invention has been made in order to solve the problems of the prior art as described above, the reciprocating furnace body position of the rotary kiln can continuously measure the position of the rotary kiln 100 as the reciprocating movement in the axial direction simultaneously with rotation. It is to provide a sensing device.

1 is a perspective view schematically showing a conventional rotary kiln,

Figure 2 is a perspective view showing the state of use of the conventional reciprocating movement control apparatus for a rotary kiln,

Figure 3 is a perspective view showing an application example of the reciprocating roche position detecting device of the present invention,

4 is an exploded perspective view of the reciprocating roche position detecting apparatus of the present invention.

<Description of Symbols for Major Parts of Drawings>

100: rotary kiln 100a, 100b: tire

101: entrance chute 102: burner

103a: ring gear 103b: drive gear

104a to 104d: support trolley 105: speed reducer

106: motor 201: panel (LCB Pannel)

202: grease pump 202a: motor

203: pipe 204: cylinder

205: 4-axis rotary arm 206: nozzle

207: Cleaner 208: Stand

209: shaft moving rollers 210, 211: sliding bar

212, 213: stand 214: detection sensor

301a, 301b: shaft movement roller 302: guide plate

303a, 303b: height adjustment plate 304: hinge

304a, 304b: heat sink 305a, 305b: support roller

306a-306d: Guide Rollers 307a-307d: Touch Bar

308a-308d: limit sensor 309: moving plate

310: base 312a to 312d: ring plate

314: position detector 317: analog-to-digital converter

In order to achieve the above technical problem, the present invention is largely composed of a moving part, a fixing part, and a control part.

The moving part is in contact with the side surfaces of the tire (100a, 100b) to maintain the rotation of the rotary kiln 100 and at the same time move along with the axial movement axial movement roller (301a, 301b),

Touch bars 307a to 307d capable of applying a contact to the limit sensors 308a to 308d while moving in the axial direction together with the axial movement rollers 301a and 301b;

A moving plate 309 for mounting the shaft moving rollers 301a and 301b and the touch bars 307a to 307d,

The fixing part is fixed to the base 310 and a plurality of support rollers (305a, 305b) for smoothly moving in the axial direction while supporting the lower surface of the moving plate 309,

A plurality of guide rollers 306a to 306d fixed to the base 310 and smoothly moving in the axial direction while supporting the side surfaces of the moving plate 309;

It is installed on the rotation shaft of the support rollers 305a and 305b while being fixed to the base 310 to convert the axial movement distance of the rotary kiln 100 into an electrical pulse signal by the amount of rotation of the support rollers 305a and 305b. A position detector 314 for transmitting to the control unit;

It is composed of limit sensors 308a to 308d fixed to the base 310 and transmitting signals to the control unit by the contact of the touch bars 307a to 307d.

The control unit calculates the moving distance of the rotary kiln 100 based on the signal input from the position detector 314, and turns on / off the support control coating device and the cleaning device according to the signals input from the limit sensors 308a to 308d. Generate a control signal for the control.

In addition, in the configuration as described above, in the apparatus of the present invention, the axial movement rollers 301a and 301b are installed perpendicular to the guide plate 302, and the height adjustment plate 303a is fixed to the lower surface of the guide plate 302. The height adjusting plate 303b is fixed to the upper surface of the movable plate 309, and the heights of the axis shifting rollers 301a and 301b are adjusted according to the relative positions of the height adjusting plate 303a and the height adjusting plate 303b. It may be configured to.

In addition, one or both of the axial movement rollers 301a and 301b may be mounted in an elliptical groove long in the axial direction so as to adjust the relative distance between the axial movement rollers 301a and 301b.

In addition, a heat dissipation means composed of heat dissipation plates 304a and 304b is provided on an upper surface of the movable plate 309, and a hinge 304 is provided between the heat dissipation plates 304a and 304b, so that the hinge 304 is provided. It may be configured to be able to relatively move either one of the heat sink (304a, 304b) around the center.

That is, the reciprocating roche position detecting device of the present invention is fixedly installed on the bottom of the rotary kiln 100, the moving part moves in parallel with the tires (100a, 100b) in the axial direction of the rotary kiln 100, accordingly The position detector 314 calculates the movement distance, and the reciprocating structure is adopted so that the upper and lower limit detection can be performed by the limit sensors 308a to 308d.

Hereinafter, the configuration of the present invention as described above will be described in more detail through examples. In the reference drawings for the present invention, detailed description is omitted by using the same reference numerals for components having substantially the same configuration and function.

First, the apparatus of the present invention is preferably installed at the lower portion of any one tire (100a, 100b) of the rotary kiln 100. This is because the configuration of the device is simplified with the purpose of utilizing the lower space of the rotary kiln 100. However, other parts, for example, may be configured to be installed on the side or top of the rotary kiln 100, in which case the moving part and the fixing part should be configured to be able to move in a more coupled state so as not to be separated from each other.

First, the moving part includes at least shaft moving rollers 301a and 301b, touch bars 307a to 307d, and a moving plate 309.

The axial movement rollers 301a and 301b are in contact with the side surfaces of the tires 100a and 100b to maintain the rotation of the rotary kiln 100 and simultaneously move together along the axial movement of the tires 100a and 100b. In an embodiment of the present invention, as shown in Figs. 3 and 4, a pair of axial movement rollers 301a and 301b installed in the vertical direction are provided on both sides of the tires 100a and 100b.

The touch bars 307a to 307d are means for applying contact to the limit sensors 308a to 308d while moving in the axial direction together with the axial movement rollers 301a and 301b. According to the embodiment, a plurality of limit sensors 308a to 308d installed at a position corresponding to an allowable limit in which the tires 100a and 100b can move in the axial direction is provided in the fixed portion, and the contact member is disposed at the corresponding limit position. It is installed in the form of 'B' on the side of the moving part.

The moving plate 309 is a means for mounting the axial movement rollers 301a and 301b and the touch bars 307a to 307d. Therefore, the axial movement rollers 301a and 301b and the touch bars 307a to 307d are axially moved together with the movement of the movable plate 309. In the embodiment, the cross section of the flat plate or the lower part is configured in the shape of a 'c' shape, and the height adjusting plates 303a and 303b are installed on the upper part to adjust the height of the axial movement rollers 301a and 301b. It is.

The height adjustment plate 303a has an upper end thereof provided on the lower surface of the guide plate 302, and the height adjustment plate 303b has its lower end installed on an upper surface of the moving plate 309. The axial movement rollers 301a and 301b are provided in this guide plate 302. As shown in FIG. Therefore, as well as fixed, the height can be adjusted.

According to the embodiment, holes for inserting the axial movement rollers 301a and 301b are machined on both sides of the upper portion of the guide plate 302, and the shafts of the axial movement rollers 301a and 301b are inserted and mounted vertically. It is. However, the axial movement rollers 301a and 301b are not necessarily required to be installed on the guide plate 302, and may be installed directly on the moving plate 309 when the height adjustment function is not required. The interval between the axial movement roller (301a, 301b) can be configured to be installed in the longitudinally long elliptical groove formed in the guide plate 302 or the moving plate 309 to be adjusted according to the width of the tire (100a, 100b) Can be.

In addition, the heat dissipation plate (304a, 304b) is installed on the moving plate 309 for high temperature heat dissipation, it is added to the convenience by forming a butterfly wing shape by installing a hinge 304 in the middle for the convenience of opening during repair.

The fixing portion is composed of a plurality of support rollers 305a and 305b, a plurality of guide rollers 306a to 306d, a position detector 314 and limit sensors 308a to 308d.

The supporting rollers 305a and 305b are fixed to the base 310 and are means for smoothly moving in the axial direction while supporting the lower surface of the movable plate 309, and are preferably provided in two or more. According to the embodiment, the support rollers 305a and 305b are provided in parallel on the bearing block provided in the base 310, and the moving plate 309 is mounted thereon.

The guide rollers 306a to 306d are means fixed to the base 310 to smoothly move in the axial direction while supporting the side surface of the movable plate 309, and are preferably provided in three or more. According to the embodiment, four are installed by inserting the shaft into the hole formed in the base 310, and the upper end portion is provided with a circular locking jaw or ring plates 312a to 312d to prevent the moving plate 309 from being separated.

The position detector 314 is installed on the rotation shaft of the support rollers 305a and 305b while being fixed to the base 310 and is moved in the axial direction of the rotary kiln 100 by the amount of rotation of the support rollers 305a and 305b. Converts the signal into an electrical pulse signal and transmits it to the controller. In this case, it is sufficient if only one of the shafts of the support rollers 305a and 305b is installed. On the output side of the position detector 314, a converter and an analog output card are not shown.

The limit sensors 308a to 308d are means fixed to the base 310 to transmit a signal to the control unit by the contact of the touch bars 307a to 307d. This is a means for detecting the deviation of the upper and lower movement of the rotary kiln 100, a plurality of axial front and rear end of the base 310 is installed in accordance with the design specifications and needs.

The control unit calculates the moving distance of the rotary kiln 100 based on the signal input from the position detector 314, and the electronic valves of the support trolley coating device and the cleaning device according to the signals input from the limit sensors 308a to 308d. It is configured to generate a control signal such as on and off (not shown). The controller is provided with a storage device for storing these data and for storing and executing a program for controlling the devices by branching according to a predetermined condition. The support pad coating apparatus and the cleaning apparatus are apparatuses having the same configuration as in the prior art, and thus detailed description thereof will be omitted.

Hereinafter, the operation of the present invention having the above configuration will be described.

When the rotational speed of the rotary kiln 100 is suddenly changed according to the rapid increase or decrease of the quicklime production, the rotary kiln 100 is moved by the force along the axial direction. At the same time, the tires 100a and 100b are also moved.

Then, in order to maintain rotation of the tires 100a and 100b, the axial movement rollers 301a and 301b provided on both side surfaces of the tires 100a and 100b are rotated at the same time, and at the same time the axial movement of the tires 100a and 100b. Along with the force to move axially together.

However, since the load is supported by the support rollers 305a and 305b, and the axial movement rollers 301a and 301b are provided on the movable plate 309 which is a side guide by the guide rollers 306a to 306d, the base ( It is possible to free the relative movement with respect to 310). Therefore, the axial movement rollers 301a and 301b move axially integrally with the moving plate 309 during the axial movement of the rotary kiln 100. At this time, the distance of the axial movement is the same as the distance the actual rotary kiln 100 moved.

Since the support rollers 305a and 305b below the moving plate 309 rotate in close contact with the moving plate 309 during the axial movement, the movement distance of the circumference thereof accurately represents the moving distance of the rotary firing furnace 100. In this relationship, the position detector 314 coaxially installed on the axes of the support rollers 305a and 305b can easily calculate the moving distance of the rotary kiln 100 from the rotation amount of the support rollers 305a and 305b. It becomes possible. The axial movement distance information is transmitted from the position detector 314 to the control unit through the analog-to-digital converter 317 and is controlled by the same procedure as before.

On the other hand, the protrusions or touch bars 307a to 307d fixed to the moving plate 309 are limited to the base sensors when the rotary kiln 100 tries to move beyond the upper and lower limits of the axial movement. It comes in contact with 308a-308d. In addition, the upper and lower limit sensors 308a to 308d may be installed to operate the coating device before the upper and lower detection positions. In this case, the protrusions or the touch bars 307a to 307d may be disposed on the limit sensors 308a to 308d. Can be contacted. When such a contact occurs, the contact occurrence information is transmitted from the limit sensors 308a to 308d to the control unit via the analog-to-digital converter 317, and is controlled by the same procedure as before.

As described above, the control unit that receives the input of the position detector 314 and the limit sensors 308a to 308d in real time sends the appropriate control signal to the support control application apparatus and the cleaning apparatus, thereby accurately turning on and off the rotary kiln 100. Measures can be taken to prevent axial movement of the In addition, it can be configured to provide the driver with calculated data, for example, within a range of 25 mm above and below the center of travel.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the following by those skilled in the art to which the present invention pertains. Various modifications and variations are possible, of course, within the scope of equivalents of the claims to be described.

In addition, the lower surface of the moving plate 309 and the circumferential surfaces of the support rollers 305a and 305b may be configured to reduce slip by using a member having a large frictional resistance coefficient, and in order to further increase the accuracy, the rack and pinion structure may be used. You may also do it.

In addition, the installation place of the touch bars 307a-307d and the limit sensors 308a-308d may be mutually changed. And the height adjustment plate (303a, 303b) is replaced by an elastic member configured to apply a force toward the upper side, it is more preferable to provide a roller member on the upper surface and rolled in contact with the outer peripheral surface of the tire (100a, 100b).

In addition, the apparatus of the present invention is preferably installed so as to be eccentric with respect to the center of the rotary kiln 100 in order to absorb the force component of the force in the rotational direction of the rotary kiln 100. Alternatively, for this purpose, the device of the present invention may be installed slightly obliquely.

Therefore, according to the present invention, while the high-temperature rotary kiln 100 repeats the reciprocating movement in the axial direction, the position information can be accurately obtained with respect to the change in the movement, and the upper and lower reach information can also be obtained. Since it is possible to control the coating and cleaning apparatus at an appropriate time to prevent overload, there is a very innovative effect that can secure the quicklime product stably due to the equipment stability of the rotary kiln 100.

Claims (1)

In the furnace body position sensing device of the rotary kiln, it is composed of a moving part, a fixed part and a control part, The moving part is in contact with the side surfaces of the tire (100a, 100b) to maintain the rotation of the rotary kiln 100 and at the same time move along with the axial movement axial movement roller (301a, 301b), Touch bars 307a to 307d capable of applying a contact to the limit sensors 308a to 308d while moving in the axial direction together with the axial movement rollers 301a and 301b; A moving plate 309 for mounting the shaft moving rollers 301a and 301b and the touch bars 307a to 307d, The fixing part is fixed to the base 310 and a plurality of support rollers (305a, 305b) for smoothly moving in the axial direction while supporting the lower surface of the moving plate 309, A plurality of guide rollers 306a to 306d fixed to the base 310 and smoothly moving in the axial direction while supporting the side surfaces of the moving plate 309; It is installed on the rotation shaft of the support rollers 305a and 305b while being fixed to the base 310 to convert the axial movement distance of the rotary kiln 100 into an electrical pulse signal by the amount of rotation of the support rollers 305a and 305b. A position detector 314 for transmitting to the control unit; It is composed of limit sensors 308a to 308d fixed to the base 310 and transmitting signals to the control unit by the contact of the touch bars 307a to 307d. The control unit calculates the moving distance of the rotary kiln 100 based on the signal input from the position detector 314, and turns on / off the support control coating device and the cleaning device according to the signals input from the limit sensors 308a to 308d. A reciprocating furnace body position sensing device of a rotary kiln, characterized in that it is configured to generate a control signal to make.