Refractoriness test furnace for producing waste refractory bricks

Abstract

The utility model relates to the technical field of refractoriness test, and provides a refractoriness test furnace for producing waste refractory bricks, which comprises a heat resistance test furnace body, a positioning mechanism and a rotating mechanism, and through the mutual cooperation of the positioning mechanism, the rotating mechanism and an electromagnetic induction heater, the device can carry out refractoriness test on waste refractory bricks with different sizes. Meanwhile, when a servo motor is started, a worm can be driven to rotate, then a rotating rod can slowly rotate through an arranged worm gear, and when the rotating rod slowly rotates, positioning discs fixedly connected to the surface of the rotating rod can rotate, so that waste refractory bricks positioned in the two positioning discs can be slowly rotated; and all the faces of the waste refractory bricks can be heated more comprehensively, and the situation that heating is not uniform due to heating dead corners of the waste refractory bricks is avoided. According to the technical scheme, the problem that the refractoriness test result is affected due to the fact that the position of the waste refractory brick is in a fixed state in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of refractoriness test, in particular to a refractoriness test furnace for producing waste refractory bricks. Background Art

[0002] A refractoriness test furnace is an experimental device specially used to test and evaluate the ability of materials to resist thermal decomposition and melting at high temperatures. By simulating an extreme high temperature environment, this device can accurately determine the refractoriness of the material, that is, the maximum temperature that the material can withstand without significant mass loss and structural changes.

[0003] Waste refractory bricks are divided into: waste magnesia-alumina spinel bricks, waste magnesia bricks, waste magnesia-chrome bricks, waste corundum bricks, waste magnesia-carbon bricks, waste high-alumina bricks, waste skateboard bricks, and waste refractory bricks, that is, waste refractory bricks used in (steel mills, cement plants, glass kilns, refractory material plants and other furnaces). In the process of waste refractory brick production, its refractoriness needs to be tested.

[0004] In the prior art, there is a utility model with authorization announcement number: CN206990481U, and its name is: A refractoriness test device. The utility model has a novel and reasonable design, and can automatically record the changes of the test cone and the standard cone in the furnace, without the need for manual observation and recording, thereby reducing the labor intensity of the operator, and the test results are accurate. One operator can monitor multiple refractoriness test furnaces at the same time, shortening the cycle of the refractoriness test and improving work efficiency.

[0005] However, during the refractoriness test of waste refractory bricks, the device directly places the waste refractory bricks in the device for heating test, and the position of the waste refractory bricks is in a fixed state, which will result in the waste refractory bricks being unable to be heated more comprehensively, affecting the accuracy of the refractoriness test.

[0006] In the prior art, there is a utility model with authorization announcement number: CN215727822U, and its name is: A furnace temperature control device for a refractoriness test furnace for refractory materials, which utilizes an environmental protection box to collect the heat of discharged high-temperature air and uses its heat to preheat the air input when the temperature needs to be raised. In this way, heat conversion is utilized to save resources, reduce consumption, and quickly complete cooling and heating operations. The method is simple and convenient.

[0007] However, during the process of the device conducting a refractoriness test on the waste refractory bricks, the position of the waste refractory bricks is still in a fixed state, which makes it impossible for the waste refractory bricks to be heated more evenly and comprehensively, thus affecting the accuracy of the refractoriness test. Utility Model Content

[0008] The utility model provides a refractoriness test furnace for waste refractory brick production, which solves the problem in the related art that the positions of the waste refractory bricks are in a fixed state and thus affect the refractoriness test results.

[0009] The technical solution of the utility model is as follows: a refractoriness test furnace for the production of waste refractory bricks, comprising a heat-resistant test furnace body, a positioning mechanism and a rotating mechanism, the positioning mechanism comprising a first threaded rod threadedly connected to the inner wall of the heat-resistant test furnace body, a rotating rod rotatably sleeved on the other side of the inner wall of the heat-resistant test furnace body, positioning plates are installed at the ends of the first threaded rod and the rotating rod close to each other, the inner wall of each positioning plate is threadedly connected to a second threaded rod, and the bottom end of each second threaded rod is rotatably connected to a positioning plate.

[0010] The rotating mechanism comprises a servo motor and a worm mounted on the outer surface of the heat resistance test furnace body. The output shaft end of the servo motor is fixedly connected to the rotating shaft end of the worm. The rotating shaft end of the rotating rod is fixedly connected to a worm wheel meshing with the worm.

[0011] Furthermore, one end of the first threaded rod is rotatably connected to the inner wall of the corresponding positioning plate, and one end of the rotating rod is fixedly connected to the inner wall of the corresponding positioning plate. By limiting the relationship between the two positioning plates and the first threaded rod and the rotating rod respectively, when the rotating rod rotates, the corresponding positioning plate will be driven to rotate, and the rotation of the first threaded rod will not interfere with or affect the rotation of the positioning plate.

[0012] Furthermore, two guide rods are fixedly connected to the upper surface of each positioning plate, and the four guide rods are respectively slidably mounted on the inner walls of the two positioning plates. By providing the guide rods, the positioning plate can be moved to facilitate the positioning of waste refractory bricks of different thicknesses, and the refractoriness test of waste refractory bricks of different sizes can be performed.

[0013] Furthermore, the other end of the first threaded rod is fixedly connected to a first handle, the top end of each of the second threaded rods is fixedly connected to a second handle, and the top end of each of the guide rods is fixedly connected to a limiting plate. By setting the first handle, the first threaded rod can be easily rotated, and by setting the second handle, the second threaded rod can be easily rotated. By setting the limiting plate, the movement range of the positioning plate can be limited.

[0014] Furthermore, the inner bottom wall and the inner top wall of the heat-resistant test furnace body are both installed with electromagnetic induction heaters, and the two inner side walls of the heat-resistant test furnace body are both installed with temperature sensors. By setting the electromagnetic induction heater, the waste refractory bricks positioned inside the heat-resistant test furnace body can be heated, so that the interior of the heat-resistant test furnace body can simulate a high-temperature environment, which is convenient for conducting refractoriness tests on the waste refractory bricks. By setting the temperature sensor, the temperature inside the heat-resistant test furnace body can be detected.

[0015] Furthermore, a heat insulation board is fixedly connected to the front of the heat resistance test furnace body, and a controller is fixedly connected to the outer surface of the heat insulation board. The two electromagnetic induction heaters are electrically connected to the controller through heat-resistant wires, and the two temperature sensors are electrically connected to the controller. The heat insulation board can achieve heat insulation effect to avoid thermal damage to the controller. The controller can control the operation of the electromagnetic induction heater and display the temperature value detected by the temperature sensor.

[0016] Furthermore, a sealed door is installed on the back of the heat-resistant test furnace body, and support columns are fixedly connected to the four corners of the bottom surface of the heat-resistant test furnace body. By setting the sealed door, waste refractory bricks can be conveniently placed into the heat-resistant test furnace body, and waste refractory bricks can also be conveniently taken out from the heat-resistant test furnace body.

[0017] Furthermore, two exhaust ports are installed at the top of the heat-resistant test furnace body, and a valve is provided inside each of the exhaust ports. By setting the exhaust ports, the high-temperature gas inside the heat-resistant test furnace body can be discharged to the outside in advance when the test is completed, so that the tested waste refractory bricks can be removed from the heat-resistant test furnace body conveniently.

[0018] The working principle and beneficial effects of the utility model are:

[0019] 1. In the utility model, the positioning mechanism, the rotating mechanism and the electromagnetic induction heater cooperate with each other, so that the device can perform refractoriness tests on waste refractory bricks of different sizes. At the same time, when the servo motor is started, the worm can be driven to rotate, and then the rotating rod can be slowly rotated by the arranged worm wheel. When the rotating rod rotates slowly, the positioning disk fixedly connected to the surface of the rotating rod can be rotated, so that the waste refractory bricks positioned in the two positioning disks can be slowly rotated, so that all surfaces of the waste refractory bricks can be heated more comprehensively, avoiding the situation that the waste refractory bricks are heated unevenly due to the heating dead corners, and preventing the refractoriness test from being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0022] Figure 2 This is a rear view structural diagram of the utility model;

[0023] Figure 3 It is a partial top view structural schematic diagram of the utility model;

[0024] Figure 4It is a partial bottom view of the structure of the utility model.

[0025] In the figure: 1. Heat resistance test furnace body; 2. Positioning mechanism; 201. First threaded rod; 202. Rotating rod; 203. Positioning plate; 204. Second threaded rod; 205. Positioning plate; 206. Guide rod; 207. First handle; 208. Second handle; 209. Limiting plate; 3. Rotating mechanism; 301. Servo motor; 302. Worm; 303. Worm gear; 4. Electromagnetic induction heater; 5. Temperature sensor; 6. Exhaust port; 7. Heat insulation board; 8. Controller; 9. Sealing door; 10. Support column. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] like Figure 1 to Figure 4 As shown, this embodiment proposes a refractoriness test furnace for the production of waste refractory bricks, including a heat-resistant test furnace body 1, a positioning mechanism 2 and a rotating mechanism 3. The positioning mechanism 2 includes a first threaded rod 201 threadedly connected to the inner wall of the heat-resistant test furnace body 1, and a rotating rod 202 is rotatably sleeved on the other side of the inner wall of the heat-resistant test furnace body 1. Positioning plates 203 are installed on the ends of the first threaded rod 201 and the rotating rod 202 that are close to each other.

[0029] One end of the first threaded rod 201 is rotatably connected to the inner wall of the corresponding positioning plate 203, and one end of the rotating rod 202 is fixedly connected to the inner wall of the corresponding positioning plate 203. By limiting the relationship between the two positioning plates 203 and the first threaded rod 201 and the rotating rod 202 respectively, when the rotating rod 202 rotates, it will drive the corresponding positioning plate 203 to rotate, and the rotation of the first threaded rod 201 will not interfere with or affect the rotation of the positioning plate 203.

[0030] When the first threaded rod 201 rotates, the position of the corresponding positioning plate 203 inside the heat resistance test furnace body 1 can be changed, so as to achieve the effect of positioning the waste refractory bricks of different lengths and improve the application range of the device.

[0031] The inner wall of each positioning disk 203 is threadedly connected to a second threaded rod 204 , and the bottom end of each second threaded rod 204 is rotatably connected to a positioning plate 205 .

[0032] Two guide rods 206 are fixedly connected to the upper surface of each positioning plate 205. The four guide rods 206 are slidably mounted on the inner walls of the two positioning plates 203 respectively. The positioning plate 205 can be moved by setting the guide rods 206, so as to facilitate the positioning of waste refractory bricks of different thicknesses and to conduct refractoriness tests on waste refractory bricks of different sizes.

[0033] In summary, the two sides of waste refractory bricks of different sizes can be positioned between the two positioning plates 203 through the second threaded rod 204 and the positioning plate 205, and the positioning plate 203 and the positioning plate 205 are both made of materials with good thermal conductivity.

[0034] The rotating mechanism 3 includes a servo motor 301 and a worm 302 installed on the outer surface of the heat resistance test furnace body 1. The output shaft end of the servo motor 301 is fixedly connected to the rotating shaft end of the worm 302. The rotating shaft end of the rotating rod 202 is fixedly connected to a worm wheel 303 meshing with the worm 302.

[0035] When the servo motor 301 is driven to work, the worm 302 can be driven to rotate, and when the worm 302 rotates, the worm wheel 303 can be driven to rotate, and the rotation of the worm wheel 303 can make the rotating rod 202 rotate, and when the rotating rod 202 rotates, the positioning plate 203 fixedly connected to its surface can be driven to rotate, so that the waste refractory bricks positioned by the two positioning plates 203 can be slowly rotated, so that the position of the waste refractory bricks is no longer fixed, avoiding the occurrence of heating dead corners, and making the waste refractory bricks more evenly heated inside the heat resistance test furnace body 1, thereby improving the accuracy of the results of the waste refractory brick refractories test.

[0036] Example 2

[0037] like Figure 1 to Figure 4 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes that the other end of the first threaded rod 201 is fixedly connected to a first handle 207, the top of each second threaded rod 204 is fixedly connected to a second handle 208, and the top of each guide rod 206 is fixedly connected to a limiting plate 209. By setting the first handle 207, the first threaded rod 201 can be easily rotated, and by setting the second handle 208, the second threaded rod 204 can be easily rotated. By setting the limiting plate 209, the movement range of the positioning plate 205 can be limited.

[0038] The inner bottom wall and the inner top wall of the heat-resistant test furnace body 1 are both installed with an electromagnetic induction heater 4. The essence of the electromagnetic induction heater 4 is to use electromagnetic induction to generate eddy currents in the column to electrically heat the heated workpiece. It converts electrical energy into electromagnetic energy, and then converts electromagnetic energy into electrical energy. The electrical energy is converted into thermal energy inside the metal to achieve the heating effect. In this way, the interior of the heat-resistant test furnace body 1 can simulate a high-temperature environment, which is convenient for the refractoriness test of waste refractory bricks.

[0039] Temperature sensors 5 are installed on both inner walls of the heat-resistant test furnace body 1. By setting up the electromagnetic induction heater 4, the waste refractory bricks positioned inside the heat-resistant test furnace body 1 can be heated, so that the interior of the heat-resistant test furnace body 1 can simulate a high-temperature environment, which is convenient for conducting a refractoriness test on the waste refractory bricks. By setting up the temperature sensor 5, the temperature inside the heat-resistant test furnace body 1 can be detected.

[0040] An insulation board 7 is fixedly connected to the front of the heat resistance test furnace body 1, and a controller 8 is fixedly connected to the outer surface of the insulation board 7. The two electromagnetic induction heaters 4 are electrically connected to the controller 8 through heat-resistant wires, and the two temperature sensors 5 are electrically connected to the controller 8. The insulation board 7 can achieve a heat insulation effect to avoid thermal damage to the controller 8. The controller 8 can control the operation of the electromagnetic induction heater 4 and display the temperature value detected by the temperature sensor 5.

[0041] A sealing door 9 is installed on the back of the heat resistance test furnace body 1. The sealing door 9 is an existing mechanism and is only used as a style reference. By setting the sealing door 9, the interior of the heat resistance test furnace body 1 can be sealed, making it convenient for the interior of the heat resistance test furnace body 1 to simulate a high temperature environment.

[0042] Support columns 10 are fixedly connected to the four corners of the bottom surface of the heat-resistant test furnace body 1. By setting a sealed door 9, waste refractory bricks can be easily put into the heat-resistant test furnace body 1, and it is also convenient to take out the waste refractory bricks from the heat-resistant test furnace body 1.

[0043] Two exhaust ports 6 are installed at the top of the heat-resistant test furnace body 1. A valve is provided inside each exhaust port 6. In the initial state, the exhaust port 6 is closed. By setting the exhaust port 6, the high-temperature gas inside the heat-resistant test furnace body 1 can be discharged to the outside in advance when the test is completed, so that the tested waste refractory bricks can be removed from the heat-resistant test furnace body 1 conveniently.

[0044] Working principle: one side of the waste refractory brick is placed in the positioning disk 203 fixedly connected to the surface of the rotating rod 202, and then the corresponding second threaded rod 204 is rotated to make the positioning plate 205 move downward. When the positioning plate 205 moves downward, one side of the waste refractory brick can be pressed against the corresponding positioning disk 203. Then the first threaded rod 201 is rotated to make the positioning disk 203 rotated on one end of the first threaded rod 201 and move toward the waste refractory brick until the outer surface of the positioning disk 203 contacts the other side of the waste refractory brick. The rotation of the first threaded rod 201 can be stopped. Then the second threaded rod 204 on one side of the first threaded rod 201 needs to be rotated to make the corresponding positioning plate 205 move downward to achieve the compression and positioning of the other side of the waste refractory brick. Through the above steps, waste refractory bricks of different sizes can be positioned inside the heat-resistant test furnace body 1. Then the sealing door 9 is closed and locked. Then the two electromagnetic induction heaters 4 are started to heat the inside of the heat-resistant test furnace body 1. Heating can make the interior of the heat-resistant test furnace body 1 simulate a high-temperature environment, which is convenient for the refractoriness test of the waste refractory bricks. Then, the servo motor 301 is started to work. When the servo motor 301 is working, it can drive the worm 302 to rotate. The rotation of the worm 302 can make the worm wheel 303 rotate slowly, so that the rotating rod 202 and the positioning disk 203 fixedly connected to its surface can be rotated slowly. Since one end of the first threaded rod 201 is rotatably connected to the corresponding positioning disk 203, when the rotating rod 202 drives the corresponding positioning disk 203 to rotate, the waste refractory bricks positioned in the two positioning disks 203 can be rotated slowly. In this way, when the refractoriness test of the waste refractory bricks is carried out, the appearance of dead angles can be avoided, and each surface of the waste refractory bricks can be fully heated, which effectively improves the accuracy of the refractoriness test. After completing the refractoriness test, the two exhaust ports 6 can be opened first to discharge the hot air inside the heat-resistant test furnace body 1, and then the sealing door 9 can be opened to take out the waste refractory bricks.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A refractoriness test furnace for waste refractory brick production, characterized in that: The heat-resistant test furnace comprises a body (1), a positioning mechanism (2) and a rotating mechanism (3), wherein the positioning mechanism (2) comprises a first threaded rod (201) threadedly connected to the inner wall of the body (1) of the heat-resistant test furnace, a rotating rod (202) is rotatably sleeved on the other side of the inner wall of the body (1) of the heat-resistant test furnace, a positioning plate (203) is installed at the ends of the first threaded rod (201) and the rotating rod (202) close to each other, the inner wall of each positioning plate (203) is threadedly connected to a second threaded rod (204), and the bottom end of each second threaded rod (204) is rotatably connected to a positioning plate (205); The rotating mechanism (3) comprises a servo motor (301) and a worm (302) mounted on the outer surface of the heat resistance test furnace body (1); the output shaft end of the servo motor (301) is fixedly connected to the rotating shaft end of the worm (302); and the rotating shaft end of the rotating rod (202) is fixedly connected to a worm wheel (303) meshing with the worm (302).

2. The refractoriness test furnace for waste refractory brick production according to claim 1, characterized in that: One end of the first threaded rod (201) is rotatably connected to the inner wall of the corresponding positioning plate (203), and one end of the rotating rod (202) is fixedly connected to the inner wall of the corresponding positioning plate (203).

3. The refractoriness test furnace for waste refractory brick production according to claim 1, characterized in that: The upper surface of each positioning plate (205) is fixedly connected to two guide rods (206), and the four guide rods (206) are slidably sleeved on the inner walls of the two positioning plates (203) respectively.

4. The refractoriness test furnace for waste refractory brick production according to claim 3, characterized in that: The other end of the first threaded rod (201) is fixedly connected to a first handle (207), the top end of each of the second threaded rods (204) is fixedly connected to a second handle (208), and the top end of each of the guide rods (206) is fixedly connected to a limiting plate (209).

5. The refractoriness test furnace for waste refractory brick production according to claim 1, characterized in that: Electromagnetic induction heaters (4) are installed on the inner bottom wall and the inner top wall of the heat resistance test furnace body (1), and temperature sensors (5) are installed on the two inner side walls of the heat resistance test furnace body (1).

6. The refractoriness test furnace for waste refractory brick production according to claim 5, characterized in that: A heat insulation board (7) is fixedly connected to the front of the heat resistance test furnace body (1), a controller (8) is fixedly connected to the outer surface of the heat insulation board (7), the two electromagnetic induction heaters (4) are electrically connected to the controller (8) via heat-resistant wires, and the two temperature sensors (5) are electrically connected to the controller (8).

7. The refractoriness test furnace for waste refractory brick production according to claim 1, characterized in that: A sealed door (9) is installed on the back of the heat resistance test furnace body (1), and support columns (10) are fixedly connected to the four corners of the bottom surface of the heat resistance test furnace body (1).

8. The refractoriness test furnace for waste refractory brick production according to claim 1, characterized in that: Two exhaust ports (6) are installed at the top of the heat resistance test furnace body (1), and a valve is provided inside each exhaust port (6).

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