CN215953518U - Movable test device for converter large-area repairing mass simulation test - Google Patents

Abstract

The utility model provides a movable test device for a converter large-area fettling simulation test, which comprises a heating furnace, a movable small crane and a dust removal device, wherein the heating furnace comprises a furnace body, a heating element, a heat-resistant stainless steel plate, a test stainless steel box, a thermocouple and wheels, the furnace body consists of a furnace bottom and a furnace wall, a groove is formed in the upper surface of the furnace bottom, the heating element is arranged in the groove, the thermocouple is further arranged at the furnace bottom, the wheels are arranged at the bottom of the furnace body, the heat-resistant stainless steel plate is laid at the upper end of the furnace bottom, the test stainless steel box is arranged on the heat-resistant stainless steel plate, a dust removal cover of the dust removal device is arranged above the furnace body, and the movable small crane sends and takes materials to the heating furnace from the upper part of the furnace body. The temperature-adjustable portable temperature-adjustable timing device is adjustable and controllable in temperature, accurate in timing, easy to operate, convenient to observe, environment-friendly, portable and high in practicability.

Description

Movable test device for converter large-area repairing mass simulation test

Technical Field

The utility model relates to the field of research and development of refractory materials for converters and test devices, in particular to a movable test device for a converter large-surface repairing mass simulation test.

Background

The converter is the main equipment for converter steelmaking production, and the improvement of the converter life can not only improve the production efficiency of the converter, reduce the consumption of refractory materials and ensure the operation rate of a continuous casting machine, but also give full play to the comprehensive benefits of systems such as blast furnaces, steelmaking, steel rolling and the like. However, since the converter is subjected to mechanical impact and slag erosion for a long time at a high temperature, the furnace bottom and the front and rear large surfaces of the refractory material are easily damaged. The rapid erosion of the front and rear large surfaces of the converter becomes a key factor influencing the improvement of the converter life. In order to improve the service life of the converter, the converter large-surface repairing material is generally adopted to carry out hot repairing on the parts.

The use effect of the converter large-surface repairing mass is judged by physicochemical indexes different from other refractory materials, and the physicochemical indexes can only be used as one item for controlling the production process of the converter large-surface repairing mass but cannot reflect the actual use performance of the material. The temperature in different converters is different according to different smelting types, the temperature in the converter before the fettling material is thrown and repaired is about 1100-1250 ℃, and the large-area fettling material suitable for different converters needs to be developed in a targeted manner, and the actual using temperature needs to be simulated as far as possible. The key properties of the large-surface repairing mass of the converter are high-temperature fluidity and sintering time. The high temperature fluidity and sintering time need to be judged by simulation tests in the laboratory. The widely used converter large-surface repairing mass is still combined with asphalt, and can generate a large amount of black smoke during the test process, thereby causing pollution and damage to people and environment. The test temperature has great influence on the sintering time, the temperature under the existing test condition has great fluctuation caused by the influence of the environment, so that the sintering time fluctuation of the same batch of tests has no comparability, and the tests of different batches have no reference. Although it is indispensable to study converter large-area repairing mass analogue test like this, and the test process needs whole observation record moreover, but present testing arrangement, or heavy loaded down with trivial details, is difficult to observe, or crude, not environmental protection, and the test result is undulant big, and the test effect can not reach the linear relevance with the actual use effect, can not play the guide effect to research and development work.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a movable test device for a converter large-area repairing mass simulation test, which is adjustable and controllable in temperature, accurate in timing, easy to operate, convenient to observe, environment-friendly, portable and high in practicability.

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

the utility model provides a movable test device for converter large face repairing mass analogue test, includes heating furnace, removes little crane, dust collector, the heating furnace includes furnace body, heating element, heat-resisting corrosion resistant plate, experimental corrosion resistant plate box, thermocouple, wheel, the furnace body comprises stove bottom and furnace wall, the upper surface at stove bottom is equipped with the recess, heating element arranges in the recess, the thermocouple is still installed at the stove bottom, and the wheel is installed to the furnace body bottom, heat-resisting corrosion resistant plate lays in stove bottom upper end, experimental corrosion resistant plate box is arranged in on the heat-resisting corrosion resistant plate, dust collector's dust excluding hood is in the top of furnace body, remove little crane and send the material of getting from the furnace body upper direction heating furnace.

The furnace wall is characterized in that the inner wall of the furnace wall is a fireproof light heat insulation brick, the outer wall of the furnace wall is a metal furnace shell, and a nanometer fireproof fiberboard is arranged between the fireproof light heat insulation brick and the metal furnace shell.

The bottom layer of the furnace bottom is made of refractory high-alumina bricks, and the refractory light heat-insulating bricks with grooves are arranged on the refractory high-alumina bricks.

The furnace body is provided with a cart handle.

The movable small crane comprises a chassis, wheels, a worm gear lead screw lifter, a cross rod and mechanical claws, wherein the wheels are installed at the bottom of the chassis, the lower end of the worm gear lead screw lifter is fixed on the chassis, the cross rod is installed at the upper end of the worm gear lead screw lifter, and the mechanical claws are installed on the cross rod.

The dust removal device comprises a dust hood, a dust absorption pipe and a filter water tank, wherein one end of the dust absorption pipe is connected with the dust hood, and the other end of the dust absorption pipe is inserted into water in the filter water tank.

Compared with the prior art, the utility model has the beneficial effects that:

the furnace body is provided with the thermocouple, the temperature is adjustable and controllable, and the temperature fluctuation is one of key parameters influencing the experimental effect of the large-area repairing mass of the converter, so the key problem of temperature stability is solved. The utility model is provided with a movable small crane, two mechanical grippers of the small crane can simultaneously add the converter large-area fettling material for the test into the test stainless steel box, and the calculation time is also one of the key parameters for evaluating the converter large-area fettling material, so the utility model solves the key problem that the experimental sample and the comparison sample are synchronously put into the experimental device.

The temperature-adjustable portable temperature-adjustable timing device is adjustable and controllable in temperature, accurate in timing, easy to operate, convenient to observe, environment-friendly, portable and high in practicability.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of a heating furnace according to the present invention;

fig. 3 is a schematic structural view of the mobile small crane in the utility model.

In the figure: 1-fire-resistant light heat-insulating brick; 2-furnace body; 3-furnace shell; 4-nano refractory fiberboard; 5-refractory high-alumina brick; 6-a fire-resistant light heat-insulating brick with a groove; 7-a heating element; 8-heat-resistant stainless steel plate; 9-test stainless steel box; 10-a thermocouple; 11-a control cabinet; 12-a wheel; 13-a cart handle; 14-a wheel; 15-a chassis; 16-worm screw hoist; 17-mechanical claw; 18-a cross-bar; 19-dust hood; 20-a dust suction pipe; 21-a filtering water tank; 22-a heating furnace; 23-a chassis; 24-transparent partition; 25-a fan.

Detailed Description

The following further illustrates embodiments of the utility model:

see fig. 1-fig. 3, a movable test device for converter large face fettling analogue test, including heating furnace 22, removal trolley 23, dust collector, the heating furnace includes furnace body 2, heating element 7, heat-resisting corrosion resistant plate 8, experimental corrosion resistant plate 9, thermocouple 10, wheel 12, furnace body 2 comprises stove bottom and furnace wall, the upper surface on stove bottom is equipped with the recess, heating element 7 arranges in the recess, thermocouple 10 is still installed at the stove bottom, and wheel 12 is installed to furnace body 2 bottom, heat-resisting corrosion resistant plate 8 lays in stove bottom upper end, experimental corrosion resistant plate 9 is arranged in on heat-resisting corrosion resistant plate 8, dust collector's dust excluding hood 19 is in the top of furnace body 2, removal trolley 23 is from furnace body 2 top to heating furnace 22 send and get the material.

The furnace wall is characterized in that the inner wall of the furnace wall is a fireproof light heat insulation brick 1, the outer wall of the furnace wall is a metal furnace shell 3, and a nanometer fireproof fiberboard 4 is arranged between the fireproof light heat insulation brick 1 and the metal furnace shell 3.

The bottom layer of the furnace bottom is a fireproof high-alumina brick 5, and a fireproof light heat-insulating brick 6 with a groove is arranged on the fireproof high-alumina brick 5.

A trolley handle 13 is arranged on the furnace body 2.

The movable small crane 23 comprises a chassis 15, wheels 14, a worm gear lead screw lifter 16, a cross rod 18 and mechanical claws 17, wherein the wheels 14 are installed at the bottom of the chassis 15, the lower end of the worm gear lead screw lifter 16 is fixed on the chassis 15, the cross rod 18 is installed at the upper end of the worm gear lead screw lifter 16, and the two mechanical claws 17 are installed on the cross rod 18.

The dust removal device comprises a dust hood, a dust absorption pipe and a filter water tank, wherein one end of the dust absorption pipe is connected with the dust hood, and the other end of the dust absorption pipe is inserted into water in the filter water tank. The filtered smoke dust is discharged through a dust exhaust pipe, and the dust removal device is driven by a fan to work.

The test stainless steel box 9 is provided with a handle for grabbing by a mechanical claw 17, the thermocouple 10 is connected with a control cabinet 11 outside the furnace body and is connected with a control system, and four wheels 12 are arranged at the bottom of the furnace body 2.

Example 1:

as shown in fig. 2, the metal shell 3 is a steel plate with a thickness of 3 mm; the furnace size (mm) is 800 × 500 × 400.

The test stainless steel box 9 (mm) has a length × width × height of 600 × 300 × 40, a thickness of 3mm, a transverse partition in the middle, and handles with a height of 70mm on both sides.

The inner wall around the furnace body 2 is a fire-resistant heat-insulating layer with the thickness of 90mm, and the fire-resistant heat-insulating layer is built by fire-resistant light heat-insulating bricks. Between the metal furnace shell 3 and the fire-resistant insulating layer is a 7mm thick nanometer fire-resistant fiber board.

The bottom of the furnace body 2 is a refractory high-alumina brick cushion layer with the thickness of 250mm, a refractory light heat-insulating brick with the height of 50mm and 20X20mm grooves is arranged on the refractory high-alumina brick cushion layer, 12 silicon carbide rods are arranged in 12 grooves, and the types of the 12 silicon carbide rods are straight 30mm (hot) X phi 8mm solid silicon carbide rods. Above the heating zone was a heat-resistant stainless steel plate 8 having dimensions (mm) of length × width × height of 600 × 300 × 3. The test stainless steel box 9 was placed on the heat-resistant stainless steel plate 8.

The thermocouple 10 penetrates from the side surface of the furnace body 2 to the heating zone for detecting temperature. The thermocouple 10 is connected to a control system.

Rated power of the heating furnace is 36kw, rated voltage is 380v, 3 phases and 50HZ, wiring mode YY and temperature control mode: the PWM is controlled by pulse width modulation, and the data recording function is realized. The maximum temperature rise speed is less than or equal to 100 ℃/h, the furnace temperature uniformity is +/-10 ℃, and the furnace temperature stability is less than or equal to +/-1 ℃.

The furnace door can be opened by the furnace body which is vertical to one side of the silicon carbide rod, so that the silicon carbide rod can be conveniently replaced. The lower part of the furnace body 2 is provided with four wheels, one side of the furnace body is provided with a cart handle, and the whole furnace body can be moved at will.

As shown in figure 3, the small mobile crane 23 is provided with a stable triangular base plate 15 with the side length of 300mm from the lower part, a worm gear screw lifter 16 is arranged on the base plate 15, a long cross rod 18 with the length of 600mm is arranged at the top end of the worm gear screw lifter 16, the cross rod 18 is provided with two mechanical claws 17, and 3 phi 6mm nylon universal wheels with self-provided brakes are arranged below the base plate 15 of the small mobile crane 23.

A plurality of test stainless steel boxes 9 with handles are used alternately during the test.

As shown in FIG. 1, the furnace 22 is set at constant temperatures of 1000 ℃, 1050 ℃, 1100 ℃, 1150 ℃, 1200 ℃ and 1250 ℃ during the test, respectively, according to the requirements of the test.

The dust removal device is started before the test material is put in, the dust removal device enters the flue gas into the filter water tank 21 through the dust absorption pipe 20 after the test material is put in, and the filtered smoke and dust are discharged to the atmosphere through the dust exhaust pipe.

During the test, the tester can observe through the transparent partition 24, and after the test is finished, the heating furnace 23 and the small mobile crane 23 can be moved to a storehouse for storage, so that the laboratory space is not occupied.

The present invention has been described in connection with the accompanying drawings, and it is to be understood that the utility model is not limited to the specific embodiments disclosed, but is intended to cover various modifications, adaptations or uses of the utility model, and all such modifications and changes are intended to be included within the scope of the utility model.

Claims (6)

1. The utility model provides a movable test device for converter large face fettling analogue test, a serial communication port, including heating furnace, removal trolley, dust collector, the heating furnace includes furnace body, heating element, heat-resisting corrosion resistant plate, experimental corrosion resistant plate box, thermocouple, wheel, the furnace body comprises stove bottom and furnace wall, the upper surface on stove bottom is equipped with the recess, heating element arranges in the recess, the thermocouple is still installed on the stove bottom, and the wheel is installed to the furnace body bottom, heat-resisting corrosion resistant plate lays in stove bottom upper end, experimental corrosion resistant plate box is arranged in on, dust collector's dust excluding hood is in the top of furnace body, remove trolley and send the material of getting from the furnace body upper direction heating furnace.

2. The movable testing device for the simulation test of the converter large-area repairing mass according to claim 1, wherein the inner wall of the furnace wall is a fire-resistant light heat-insulating brick, the outer wall of the furnace wall is a metal furnace shell, and a nano fire-resistant fiber board is arranged between the fire-resistant light heat-insulating brick and the metal furnace shell.

3. The movable testing device for the converter large-surface repairing mass simulation test according to claim 1, wherein the bottom layer of the furnace bottom is made of refractory high-alumina bricks, and the refractory light heat-insulating bricks with grooves are arranged on the refractory high-alumina bricks.

4. The movable testing device for simulation test of converter large-area repairing mass according to claim 1, wherein a cart handle is arranged on the furnace body.

5. The movable testing device for the converter large-area repairing mass simulation test according to claim 1, wherein the movable small crane comprises a chassis, wheels, a worm gear screw lifter, a cross bar and mechanical claws, the wheels are mounted at the bottom of the chassis, the lower end of the worm gear screw lifter is fixed on the chassis, the cross bar is mounted at the upper end of the worm gear screw lifter, and the two mechanical claws are mounted on the cross bar.

6. The movable testing device for the converter large-area repairing mass simulation test according to claim 1, wherein the dust removing device comprises a dust hood, a dust suction pipe and a filter water tank, one end of the dust suction pipe is connected with the dust hood, and the other end of the dust suction pipe is inserted into water in the filter water tank.

Images