Refractory material erosion test furnace

Abstract

The utility model discloses a refractory material erosion test furnace which comprises a furnace body and a furnace bottom, the furnace bottom is separably arranged at an opening in the bottom of the furnace body, a spiral spring-shaped electric heating wire is arranged on the inner side wall of the furnace body, a pressing ring capable of vertically moving to compress and stretch the electric heating wire is arranged in the furnace body, and the pressing ring is connected with the furnace body. A furnace cover is arranged at an opening in the top of the furnace body, and a support for supporting the furnace cover is fixed to the top side of the furnace body. A side cavity for containing the electric heating wire and the pressing ring is coaxially formed in the inner side of the furnace body, a threaded sleeve is fixed to the middle of the support, and a threaded rod vertically penetrating through the threaded sleeve is rotationally arranged above the furnace cover. The utility model has the beneficial effects that the height-adjustable furnace cover is arranged, the furnace cover moves downwards to compress the compression ring, and the overall height of the heating wire of the spiral spring structure can be adjusted through the movement of the compression ring, so that the heating wire is suitable for test of sample covers with different heights, the heat utilization rate is improved, the heat waste problem is solved, and the heating wire is more environment-friendly and has strong practicability.

Description

Technical Field

[0001] The utility model relates to the field of refractory material testing, in particular to a refractory material erosion testing furnace. Background Art

[0002] The quality of refractory slag erosion resistance is an important quality factor affecting the service life of refractory materials, and it is also a major technical indicator for judging the performance of refractory materials. The slag erosion resistance of refractory materials in actual use is affected by many factors. These include the type and material of refractory materials, the use temperature of refractory materials, the atmosphere in the furnace and the chemical properties of slag. The loss of refractory materials mainly comes from the dissolution caused by the reaction between refractory materials and slag, the peeling damage caused by cracking caused by thermal stress, and the friction loss caused by mechanical collision. In order to test the slag erosion resistance of refractory materials, the current test equipment is mostly resistance furnace. The erosion slag agent is loaded into the crucible made of the refractory material to be tested, and the crucible is placed in the resistance furnace for heating for a period of time. After that, it is taken out and cut open along the center of the crucible to measure the erosion. Since the current test resistance furnace cannot adjust the heating height according to the size of different samples, when the sample cover size of the refractory material to be tested is different, the heating height of the test furnace cannot be adjusted, and there is a problem of heat waste, which is poor in practicality. Utility Model Content

[0003] The purpose of the utility model is to provide a refractory erosion test furnace in order to solve the above-mentioned problem. A height-adjustable furnace cover is provided. The furnace cover is moved down to press the pressure ring. The overall height of the heating wire of the spiral spring structure can be adjusted by moving the pressure ring, so as to adapt to the test of sample covers of different heights, improve the heat utilization rate, improve the heat waste problem, be more environmentally friendly, and have strong practicality. Please see the following explanation for details.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a refractory material erosion test furnace, comprising a furnace body and a furnace bottom, wherein the furnace bottom can be detachably arranged at the bottom opening of the furnace body, a coil spring-shaped electric heating wire is arranged on the inner wall of the furnace body, a pressure ring which can be vertically moved to compress and stretch the electric heating wire is arranged inside the furnace body, a furnace cover is arranged at the top opening of the furnace body, and a bracket supporting the furnace cover is fixed on the top side of the furnace body;

[0006] A side cavity for accommodating the heating wire and the pressure ring is coaxially arranged inside the furnace body, a screw sleeve is fixed in the middle of the bracket, a screw rod vertically penetrating the screw sleeve is rotatably arranged above the furnace cover, and the screw rod is threadedly matched with the screw sleeve, and the diameter of the furnace cover is larger than the inner diameter of the pressure ring.

[0007] The above-mentioned refractory erosion test furnace is used. When in use, a sample cover made of the refractory material to be tested is placed on the top side of the furnace bottom, and the furnace body is placed on the furnace bottom outside the sample cover, and is pressed to the outside of the pressure edge by multiple sets of fixing plates to realize the assembly connection of the furnace body and the furnace bottom. Then, the knob is rotated to drive the screw to rotate, and the screw sleeve of the bracket is used to drive the screw to support the movement of the furnace cover. The furnace cover moves down to press the pressure ring and compress the heating wire downward until the furnace cover is pressed to the top side of the sample cover, so as to adjust the coverage range of the heating wire to the corresponding sample cover height range, thereby ensuring that the heating range of the heating wire only covers the required heating sample cover height range; when the sample cover and the slag agent for corrosion inside it are heated and need to be cooled and dissected to observe the corrosion situation, the synchronization ring is pressed downward to release the locking state of the multiple sets of fixing plates on the furnace body, and then the furnace body, furnace cover, pressure ring, and heating wire are lifted upward to leave the furnace bottom and the sample cover in place, and the furnace body is replaced to the upper side of another set of furnace bottom for waste heat utilization and continuous heating test.

[0008] Preferably, a knob is fixed to the top of the screw, a rotating sleeve supporting the rotation of the screw is fixed to the top of the furnace cover, and a thrust bearing for rotatably supporting the screw is arranged inside the rotating sleeve.

[0009] Preferably, the bottom end of the furnace body extends outward to form a circular pressure edge, a limiting ring extending vertically into the interior of the furnace body is fixed to the top side of the furnace bottom, and a plurality of groups of fixed plates are arranged around the outer circumference of the top side of the furnace bottom, and a plurality of groups of pressure grooves for accommodating the fixed plates are arranged on the top side of the pressure edge.

[0010] Preferably, a plurality of rotating seats supporting the rotation of the fixed plate are arranged on the top side of the furnace bottom, a receiving groove is vertically penetrated in the middle of the fixed plate, a rotating shaft penetrating the fixed plate is arranged in the middle of the rotating seat, and a torsion spring is sleeved on the outer side of the rotating shaft to keep the fixed plate pressed against the inside of the pressure groove.

[0011] Preferably, a synchronization groove is horizontally passed through the outer side of the fixed plate, and a synchronization ring is commonly passed through the synchronization grooves of multiple groups of fixed plates, and the width of the synchronization groove is greater than the diameter of the synchronization ring.

[0012] Preferably, the furnace body and the furnace bottom are both made of high temperature resistant quartz material, and the limiting ring is in clearance with the inner wall of the furnace body.

[0013] Preferably, a sample cover is provided on the inner side of the limiting ring above the furnace bottom, the sample cover is made of refractory material, and is a hollow cylindrical structure with an opening on the top.

[0014] Preferably, the sample cover is coaxially distributed with the furnace body, and the outer diameter of the sample cover is smaller than the inner diameter of the spirally extending heating wire.

[0015] The beneficial effects are as follows: 1. The utility model sets a furnace cover with adjustable height, and uses the furnace cover to move down and press the pressing ring, so that the overall height of the electric heating wire with a spiral spring structure can be adjusted by moving the pressing ring, so as to adapt to the test of sample covers of different heights, improve the heat utilization rate, improve the problem of heat waste, and be more environmentally friendly;

[0016] 2. In addition, after heating, one group of sample covers on the top side of the furnace bottom can separate the upper furnace body without moving the furnace bottom and the sample covers to be cooled, and then the furnace body with residual heat can be moved to another group of furnace bottom top sides for continuous testing, realizing the utilization of residual heat and improving the test efficiency. At the same time, it is safer and more practical to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is the main structural diagram of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the structural disassembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure disassembly of the furnace cover and the bracket of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure disassembly of the furnace bottom and the sample cover of the utility model;

[0023] Figure 6 It is a front cross-sectional view of the utility model.

[0024] The following are the descriptions of the reference numerals:

[0025] 1. Furnace body; 101. Side cavity; 102. Pressing edge; 102a. Pressing groove; 2. Furnace bottom; 201. Limiting ring; 202. Rotating seat; 3. Pressing ring; 4. Furnace cover; 401. Rotating sleeve; 402. Screw; 403. Knob; 5. Bracket; 501. Screw sleeve; 6. Sample cover; 7. Fixing plate; 701. Receiving groove; 702. Torsion spring; 703. Synchronous groove; 8. Heating wire; 9. Synchronous ring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. 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 implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0027] See also Figure 1-Figure 6 As shown, the utility model provides a refractory material erosion test furnace, including a furnace body 1 and a furnace bottom 2, the furnace bottom 2 can be detachably arranged at the bottom opening of the furnace body 1, the inner wall of the furnace body 1 is provided with a spiral spring-shaped electric heating wire 8 to ensure that the overall height of the electric heating wire 8 is adjustable, and a pressure ring 3 that can be vertically moved to compress and stretch the electric heating wire 8 is arranged inside the furnace body 1. The electric heating wire 8 is made of metal, and the electric heating wire 8 is connected to electricity through an external circuit to realize circuit on-off switch control, and is set to a spiral spring-shaped structure to ensure that the electric heating wire 8 can automatically stretch and reset after being compressed. A furnace cover 4 is arranged at the top opening of the furnace body 1, and a bracket 5 supporting the furnace cover 4 is fixed to the top side of the furnace body 1;

[0028] A side cavity 101 for accommodating the heating wire 8 and the pressure ring 3 is coaxially arranged on the inner side of the furnace body 1, a screw sleeve 501 is fixed in the middle of the bracket 5, a screw rod 402 vertically penetrating the screw sleeve 501 is rotatably arranged above the furnace cover 4, and the screw rod 402 is threadedly matched with the screw sleeve 501, the diameter of the furnace cover 4 is larger than the inner diameter of the pressure ring 3, a knob 403 is fixed on the top of the screw rod 402, a rotating sleeve 401 for supporting the rotation of the screw rod 402 is fixed on the top of the furnace cover 4, and a thrust bearing for rotatably supporting the screw rod 402 is arranged inside the rotating sleeve 401, to ensure that the screw rod 402 rotates so that when the screw sleeve 501 supports the screw rod 402 to move up and down, the screw rod 402 can be used to support the furnace cover 4 to move up and down.

[0029] As an optional embodiment, the bottom end of the furnace body 1 extends outward to form an annular pressure edge 102, a limiting ring 201 is fixed on the top side of the furnace bottom 2 and extends vertically into the interior of the furnace body 1, and a plurality of groups of fixed plates 7 are arranged around the outer circumference of the top side of the furnace bottom 2, a plurality of groups of pressure grooves 102a for accommodating the fixed plates 7 are arranged on the top side of the pressure edge 102, a plurality of groups of rotating seats 202 for supporting the rotation of the fixed plates 7 are arranged on the top side of the furnace bottom 2, a accommodating groove 701 is vertically penetrated in the middle of the fixed plate 7, a rotating shaft penetrating the fixed plate 7 is arranged in the middle of the rotating seat 202, and a torsion spring 702 for keeping the fixed plate 7 pressed against the inside of the pressure groove 102a is sleeved on the outer side of the rotating shaft, ensuring that the fixed plate 7 can press the pressure edge 102 of the furnace body 1 to the top side of the furnace bottom 2, so as to realize the detachable connection process of the furnace body 1 and the furnace bottom 2;

[0030] A synchronization groove 703 is horizontally penetrated on the outer side of the fixed plate 7, and a synchronization ring 9 is commonly penetrated in the synchronization grooves 703 of multiple groups of fixed plates 7. The width of the synchronization groove 703 is greater than the diameter of the synchronization ring 9. When the synchronization ring 9 is operated to rise and fall to drive multiple groups of fixed plates 7 to turn up and down synchronously, it is ensured that the synchronization groove 703 will not hinder the lifting action of the synchronization ring 9. The furnace body 1 and the furnace bottom 2 are both made of high-temperature resistant quartz material, and the limit ring 201 is in clearance with the inner wall of the furnace body 1;

[0031] A sample cover 6 is provided on the inner side of the limiting ring 201 above the furnace bottom 2. The sample cover 6 is made of refractory material and is a hollow cylindrical structure with an open top. The sample cover 6 is placed in the test furnace. By placing an erosion slag agent in the sample cover 6, the refractory material erosion test of the sample cover 6 is implemented after the sample cover 6 is heated by the heating wire 8. The sample cover 6 is coaxially distributed with the furnace body 1, and the outer diameter of the sample cover 6 is smaller than the inner diameter of the spirally extended heating wire 8, ensuring that the sample cover 6 will not hinder the compression and extension of the heating wire 8.

[0032] With the above structure, when in use, the sample cover 6 made of the refractory material to be tested is placed on the top side of the furnace bottom 2, and the furnace body 1 is placed on the furnace bottom 2 outside the sample cover 6, and is pressed to the outside of the pressure edge 102 by multiple sets of fixing plates 7 to realize the assembly connection between the furnace body 1 and the furnace bottom 2, and then the knob 403 is rotated to drive the screw 402 to rotate, and the screw sleeve 501 of the bracket 5 drives the screw 402 to support the furnace cover 4 to move, and the furnace cover 4 moves down to press the pressing ring 3 and compress the heating wire 8 downward until the furnace cover 4 is pressed to the top side of the sample cover 6 to cover the heating wire 8. The cover range is adjusted to the height range of the corresponding sample cover 6, so as to ensure that the heating range of the electric heating wire 8 only covers the height range of the sample cover 6 that needs to be heated; when the sample cover 6 and the slag agent for corrosion inside it are heated and need to be cooled and dissected to observe the corrosion situation, the synchronization ring 9 is pressed downward to release the locking state of the furnace body 1 by the multiple sets of fixing plates 7, and then the furnace body 1 and the furnace cover 4, the pressure ring 3, and the electric heating wire 8 are lifted upward to leave the furnace bottom 2 and the sample cover 6 in place, and the furnace body 1 is replaced to the upper side of another set of furnace bottom 2 for waste heat utilization and continuous heating test;

[0033] A furnace cover 4 with adjustable height is provided, and the furnace cover 4 is moved downward to press the pressing ring 3, so that the overall height of the electric heating wire 8 with a spiral spring structure can be adjusted by moving the pressing ring 3, so as to adapt to the test use of the sample cover 6 with different heights, thereby improving the heat utilization rate, improving the heat waste problem, and being more environmentally friendly;

[0034] In addition, after a group of sample covers 6 on the top side of the furnace bottom 2 are heated, the upper furnace body 1 can be separated without moving the furnace bottom 2 and the sample cover 6 to be cooled, and then the furnace body 1 with residual heat can be moved to the top side of another group of furnace bottom 2 for continuous testing, thereby realizing the utilization of residual heat and improving the test efficiency. At the same time, it is safer and more practical to use.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A refractory erosion test furnace, Features: The invention comprises a furnace body (1) and a furnace bottom (2), wherein the furnace bottom (2) is detachably arranged at the bottom opening of the furnace body (1), a coil spring-shaped electric heating wire (8) is arranged on the inner wall of the furnace body (1), a pressure ring (3) is arranged inside the furnace body (1) and can be moved vertically to compress and stretch the electric heating wire (8), a furnace cover (4) is arranged at the top opening of the furnace body (1), and a bracket (5) for supporting the furnace cover (4) is fixed on the top side of the furnace body (1); A side cavity (101) for accommodating the heating wire (8) and the pressure ring (3) is coaxially arranged on the inner side of the furnace body (1); a screw sleeve (501) is fixed in the middle of the bracket (5); a screw rod (402) vertically penetrating the screw sleeve (501) is rotatably arranged above the furnace cover (4), and the screw rod (402) is threadedly matched with the screw sleeve (501); the diameter of the furnace cover (4) is larger than the inner diameter of the pressure ring (3).

2. A refractory erosion test furnace according to claim 1, Features: A knob (403) is fixed to the top of the screw rod (402), a rotating sleeve (401) supporting the screw rod (402) to rotate is fixed to the top of the furnace cover (4), and a thrust bearing for rotatably supporting the screw rod (402) is arranged inside the rotating sleeve (401).

3. A refractory erosion test furnace according to claim 1, Features: The bottom end of the furnace body (1) extends outward to form a circular pressure edge (102); a limit ring (201) is fixed on the top side of the furnace bottom (2) and extends vertically into the interior of the furnace body (1); a plurality of groups of fixed plates (7) are arranged around the outer circumference of the top side of the furnace bottom (2); and a plurality of groups of pressure grooves (102a) for accommodating the fixed plates (7) are arranged on the top side of the pressure edge (102).

4. A refractory erosion test furnace according to claim 3, Features: The top side of the furnace bottom (2) is provided with a plurality of rotating seats (202) for supporting the rotation of the fixed plate (7); a receiving groove (701) is vertically penetrated in the middle of the fixed plate (7); a rotating shaft is disposed in the middle of the rotating seat (202) and penetrates the fixed plate (7); a torsion spring (702) is sleeved on the outer side of the rotating shaft to keep the fixed plate (7) pressed against the inside of the pressure groove (102a).

5. A refractory erosion test furnace according to claim 4, Features: A synchronization groove (703) is horizontally passed through the outer side of the fixed plate (7), and a synchronization ring (9) is commonly passed through the synchronization grooves (703) of multiple groups of fixed plates (7), and the width of the synchronization groove (703) is greater than the diameter of the synchronization ring (9).

6. A refractory erosion test furnace according to claim 5, Features: The furnace body (1) and the furnace bottom (2) are both made of high-temperature resistant quartz material, and the limiting ring (201) is loosely matched with the inner wall of the furnace body (1).

7. A refractory erosion test furnace according to claim 6, Features: A sample cover (6) is arranged on the inner side of the limiting ring (201) above the furnace bottom (2); the sample cover (6) is made of a refractory material and is a hollow cylindrical structure with an open top.

8. A refractory erosion test furnace according to claim 7, Features: The sample cover (6) is coaxially distributed with the furnace body (1), and the outer diameter of the sample cover (6) is smaller than the inner diameter of the spirally extended heating wire (8).

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