KR20090076656A - Electric furnace for refractoriness measurement - Google Patents

Abstract

An electric furnace for measuring the refractoriness to record and monitor a process and a result of the measurement in real-time is provided to manage data by storing and outputting almost all data related to the refractoriness measurement. An electric furnace for measuring the refractoriness comprises: a disk-shaped crucible in which a test member of cone-shape is arranged on the upper side as the radial shape; a heating unit(110) in which the disk-shape crucible is located in inside; a picturing unit(120) taking a picture of the process of measuring the refractoriness of the test member through an observation hole of an upper heating unit; a controller(130) controlling the power source supplied to a hot wire and storing all data related to the refractoriness of the test member; and a output unit(140) outputting the image to outside.

Description

ELECTRIC FURNACE FOR REFRACTORINESS MEASUREMENT}

The present invention relates to an electric furnace for measuring the fire resistance, and in particular, it is possible to monitor or record the process and results of measuring the fire resistance of the test member in real time, and to measure the fire resistance to store and output all data related to the fire resistance measurement process. It is about a furnace.

In general, refractoriness is the degree to which the object is able to maintain its initial state when the object is heated. The degree of fire resistance is not precisely determined, and the number assigned to the test member is used as a unit according to the softening state of the test member (or weight, Segel Kegel: SK) devised by the German coating Segel.

FIG. 5 is a perspective view illustrating a furnace for measuring a fire resistance according to the prior art, and FIG. 6 is an exploded perspective view illustrating an furnace for measuring a fire resistance according to the prior art. Referring to FIGS. Let's take a look.

The conventional furnace for the measurement of fire resistance (hereinafter referred to as an electric furnace) is installed vertically at the front and rear ends of the bottom plate 11 and the bottom plate 11 and the heating wire 15 is uniformly arranged on the inner wall surface. The front plate 12 and the back plate 13, the side plate 16 vertically installed at both ends of the bottom plate 11, the front plate 12, the back plate 13 and the side plate (16): It is comprised including the main body 10 of the enclosure shape comprised from the upper surface board 17 installed in the upper part of 16a, 16b.

In addition, one side of the main body 10 is provided with a control box 20 for supplying / regulating and controlling the power required for the heating wire 15. At this time, the heating controller 22 of the control box (22: 22a, 22b, 22c) is the rear panel 13 to maintain a uniform temperature while the user arbitrarily control and correct the internal temperature of the main body 10 It is electrically connected to a plurality of thermometers (30) provided in the).

In addition, the front panel 12 or the rear plate 13 of the main body 10 is provided with a check window 12a through which the inside can be seen, and the test plate 50 is mounted on the upper plate 17. A plurality of member assembly portions 17a are formed. At this time, only one end of the test member 50 mounted on the member assembly 17a is positioned inside the main body 10.

By the way, the conventional furnace for the measurement of fire resistance as described above is made of a structure that can be confirmed only by the naked eye measurement process of the test member, at least one measurer is required when measuring the fire resistance, the eyepiece in the inspection window (12a) There is a risk of visual burn. In addition, since all the data related to the fire resistance measurement process is directly recorded by the measurer, the accuracy of the data decreases, and data management is not easy and takes a lot of time.

Therefore, the present invention is to solve the above-mentioned problems, it is possible to monitor or record the process and results of measuring the fire resistance of the test member in real time using the recording and output equipment, and to store and store all data related to the fire resistance measurement process The purpose is to provide a furnace for measuring the fire resistance that can be output.

Refractoriness measurement electric furnace according to the present invention for achieving the above object, a disk-shaped crucible in which a cone-shaped test member is radially disposed on the upper surface, the disk-shaped crucible is located inside and a plurality of hot wires are disposed radially around And a heating unit having an observation hole formed on one side of the wall, a photographing unit for photographing a process of measuring the fire resistance of the test member through the observation hole, controlling the power supplied to the heating wire, and storing all data related to the measurement of the fire resistance of the test member. And an output unit configured to output an image photographed by the photographing unit to the outside.

Refractoriness measuring furnace according to the present invention, it is possible to monitor or record the process and results of measuring the fire resistance of the test member in real time using the photographing and output equipment, it is possible to sufficiently perform the fire resistance measurement with a minimum number of people. In addition, unlike the conventional check directly through the inspection window can be confirmed by using the output equipment, there is no fear of burns, and all data related to the fire resistance measurement process can be stored and output, so data management is very easy.

With reference to the accompanying drawings will be described embodiments of the present invention;

1 is a front view showing an electric furnace for refractory measurement according to the present invention, Figures 2 and 3 are a front sectional view and a side cross-sectional view showing the internal configuration of the electric furnace for fire resistance measurement according to the present invention, Figure 4 is It is a perspective view which shows the disk-shaped crucible in the electric furnace for refractory degree measurement by the same.

Referring to FIG. 1, the electric furnace for measuring a degree of fire resistance according to the present invention is provided separately from the main body 100 and the main body 100 in which the heating unit 110, the photographing unit 120, and the control unit 130 are built and photographed. It is configured to include an output unit 140 electrically connected to the unit 120 and the control unit 130.

2 and 3, the main body 100 has a front shape formed at the letter A, and a heating unit 110 for heating the test member 150 is provided at the upper left side. Built-in, upper and lower right side stores all the data related to the fire resistance measurement, including the image taken by the photographing unit 120 and the photographing unit 120 for photographing the fire resistance measurement process proceeds from the heating unit 110 The controller 130 is built. In addition, a lift 170 for moving the disc-shaped crucible 160 in which the test member 150 is installed up and down is provided at the lower left side of the main body 100, that is, the lower part of the heating unit 110, and the main body 100. The upper part of the) is provided with a duct 180 for discharging the gas and heat generated during the fire resistance measurement to the outside.

First, the heating unit 110 has a space 112 for heating the test member 150 installed in the disc-shaped crucible 160 is formed therein, a plurality of hot wire 114 is formed on the inner peripheral surface of the space 112 It is disposed radially, one side of the wall is provided with an observation hole 116 for observing the fire resistance measurement process and a temperature sensor 118 for measuring the internal temperature. At this time, the wall of the heating unit 110 is preferably formed of several layers in order to prevent heat loss due to conduction, it is very preferably made of several layers made of different materials as in this embodiment. That is, the heating part 110 of the present embodiment has a first zirconia layer (about 1900 ° C.-40 mm, 110a), a second zirconia layer (about 1800 ° C.-25 mm, 110b), and a ceramic layer (about 1600 ° C.) from the center thereof. -25mm, 110c) and a heat insulating material layer (about 1400 degreeC-10mm, 110d), and the surface temperature does not exceed 35 degreeC. On the other hand, the above-described embodiment is only an example and is not necessarily limited thereto, and may be variously changed according to heating temperature and time.

The photographing unit 120 is to photograph the fire resistance measurement process of the test member 150 through the observation hole 116 formed on the wall surface of the heating unit 110. In this case, the photographing unit 120 is spaced a predetermined distance from one end of the observation hole 116 and the exhaust fan 190 is provided therebetween. The exhaust fan 190 is to prevent damage to the photographing unit 120 by the heat discharged through the observation hole 116, the discharge heat 102 formed in the upper portion of the discharged hot air Discharge through the duct 180 through).

The control unit 130 is a means for controlling the amount of heating by controlling the power supplied to the heating wire 114 and at the same time to store all data related to the fire resistance measurement, including the image taken by the photographing unit 120, The output unit 140 is a means for outputting the image photographed by the photographing unit 120 and all data related to the measurement of fire resistance calculated and stored in the controller 130 to the outside. In this case, a general computer including a CPU is used as the controller 130 and a general monitor is used as an output unit, and thus a detailed description thereof will be omitted.

The lift 170 is a means for installing and removing the disk-shaped crucible 160 including the test member 150 in the heating unit 110. Looking at the configuration, a rectangular plate 172 having a predetermined thickness, a mounting hole 174 provided in the center of the upper surface of the plate 172 and a disk-shaped crucible are installed, and provided on the lower surface of the plate 172. Rotating means 176 for rotating 174, a ball screw 178 provided on both sides of the plate 172 to move it up and down, a guide 179 for guiding the direction of movement thereof, although not shown in the figure It is composed of an electric motor for rotating the ball screw 178. At this time, the mounting hole 174 is formed in a multi-stage smaller diameter toward the top bar is closely coupled to the heating unit 110, through which heat can be minimized to be discharged to the outside. In addition, the mounting hole 174 is preferably made of the same zirconia component as the inner wall of the heating unit 110 to withstand high temperatures.

On the other hand, the lift 170 is configured as described above is a linear movement mechanism of the general form in which the plate 172 linearly reciprocated by the rotating ball screw 178 will not be described in detail. In addition, the rotary means 176 provided on the lower surface of the plate 172 to rotate the mounting hole 174 can be applied to a variety of power generating apparatus and power transmission means including an electric motor, the detailed description thereof will be omitted. do.

On the other hand, reference numeral 104 described in the drawings is an operation panel for operating the furnace for measuring the refractory degree according to the present invention, and reference numeral 106 is a wheel used when moving to the furnace for measuring the refractory degree.

Referring to the disk-shaped crucible 160 and the test member 150 with reference to Figure 4, the disk-shaped crucible 160 is made of the same zirconia component as the inner wall and mounting holes 174 of the heating unit 110 to withstand high temperatures It is preferable to produce. Looking at the shape, a disk shape having a predetermined thickness is formed in the center of the hole 162 of a predetermined diameter. The hole 162 is a means for increasing the mounting efficiency of the disk-shaped crucible 160, although not shown in the drawings, a protrusion corresponding to the hole 162 is formed on the surface of the mounting hole 174.

In addition, the test member 150 is formed in a cone, more specifically, a triangular pyramid shape, and is disposed radially on the upper surface of the disc-shaped crucible 160. At this time, the test member 150 is divided into a reference member 152 for measuring the degree of fire resistance, and a comparison member 154 for comparing the degree of fire resistance, and in the case of the reference member 154, the degree of fire resistance is indicated at the bottom thereof.

Looking at the process of measuring the fire resistance of the electric furnace for fire resistance measurement according to the present invention configured as described above, first, the test member 150 is disposed in the mounting hole 174 in the state in which the plate 172 is lowered using the lift 170. Install the disk-shaped crucible 160. Then, when the plate 172 is lifted and coupled, the mounting tool 174 is rotated using the rotating means 176 and heated to a predetermined temperature. At the same time, photographing the fire resistance measurement process using the photographing unit 120 and outputs the image through the output unit 140. In this case, the controller 130 stores all the data related to the image and the fire resistance measurement taken by the photographing unit 120 so that it can be output as necessary.

Although the configuration and the refractory measurement process of the electric furnace for refractory measurement according to the preferred embodiment of the present invention are illustrated according to the above description and drawings, these are merely described for example and various changes within the scope without departing from the technical spirit of the present invention. And those skilled in the art will appreciate that changes are possible.

1 is a front view showing an electric furnace for measuring the degree of fire resistance according to the present invention.

2 and 3 are a front sectional view and a side sectional view showing the internal configuration of the electric furnace for fire resistance measurement according to the present invention.

Figure 4 is a perspective view showing a disk-shaped crucible of the electric furnace for fire resistance measurement according to the present invention.

5 is a perspective view showing an electric furnace for measuring the degree of fire resistance according to the prior art.

Figure 6 is an exploded perspective view showing an electric furnace for measuring the fire resistance according to the prior art.

* Description of the symbols for the main parts of the drawings *

100: main body 110: heating unit

120: recording unit 130: control unit

140: output unit 150: test member

160: disc-shaped crucible 170: lift

180: duct 190: exhaust fan

Claims (5)

A disk-shaped crucible having a cone-shaped test member radially disposed on an upper surface thereof; A heating unit in which the disc-shaped crucible is disposed inside and a plurality of heating wires are radially disposed around the disc-shaped crucible and an observation hole is formed at one side of a wall; A photographing unit photographing a process of measuring the degree of fire resistance of the test member through the observation hole; A control unit which controls the power supplied to the hot wire and stores all data related to the measurement of fire resistance of a test member; And Refractoriness measurement electric furnace characterized in that it comprises an output unit for outputting the image taken by the photographing unit to the outside. The method of claim 1, Refractoriness measurement electric furnace, characterized in that the temperature sensor is provided on one side of the wall surface of the heating unit. The method of claim 2, Refractoriness measurement electric furnace, characterized in that the exhaust fan is provided on both sides of the observation hole of the imaging unit. The method of claim 3, wherein The disc-shaped crucible is moved up and down by a lift, and the electric furnace for measuring the fire resistance, characterized in that detachably coupled through the lower surface of the heating portion. The method of claim 4, wherein The lift includes a plate, a mounting hole provided on the upper surface of the plate and installed with a disk-shaped crucible, a rotating means provided on the lower surface of the plate for rotating the mounting hole, a ball screw for moving the plate up and down, and a moving direction of the plate. Refractoriness measurement electric furnace, characterized in that consisting of a guide.

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