Refractory castable flowability testing device

Abstract

The utility model belongs to refractory material performance test equipment technical field mainly relates to refractory castable fluidity testing arrangement, the device includes vibration table and places test subassembly on vibration table, vibration table includes support base, elastic support piece, vibration table and vibration motor, vibration table is fixed in support base top through elastic support piece, test subassembly includes test board and cylinder mould, test board bottom fixed connection is in vibration table top, cylinder mould is used for holding castable and is placed in test board top center place. The utility model discloses through resetting device structure, solved the technical problem that the existing refractory castable fluidity testing arrangement exists and the structure is complex, vibrates not temperature and test benchmark is not consistent.

Description

Technical Field

[0001] This utility model belongs to the technical field of refractory material performance testing equipment, and mainly relates to a refractory castable fluidity testing device. Background Technology

[0002] Refractory castables are core materials for lining high-temperature equipment in industries such as metallurgy, building materials, and chemicals. Their fluidity directly determines the filling effect and final service performance. Insufficient fluidity can lead to difficulty in filling the mold cavity, resulting in defects such as voids and delamination; excessive fluidity can easily cause aggregate segregation, reducing the strength and wear resistance of the lining structure. Therefore, conducting fluidity tests on refractory castables before construction is a crucial step in ensuring construction quality.

[0003] Currently, commonly used refractory castable fluidity testing devices in the industry suffer from two prominent problems: First, laboratory-grade high-precision testing devices are complex in structure, typically including automatic demolding mechanisms, multi-parameter monitoring modules, and temperature and humidity control components. These devices are not only expensive to purchase (the cost of a single unit generally exceeds ten thousand yuan), but also have cumbersome operating procedures, requiring professional personnel for debugging and calibration, making them unsuitable for the "fast, simple, and efficient" testing needs of construction sites. Second, commonly used simple testing tools on construction sites are mostly self-made, resulting in problems such as inconsistent mold specifications, vibration parameters mismatched with construction equipment, and a lack of testing benchmarks. For example, self-made molds are often non-standard sizes, vibration tables lack fixed vibration parameters, and test plates lack standardized scales, leading to large errors and poor repeatability in test results. These results fail to accurately reflect the actual construction fluidity of the castable and are therefore unreliable as a basis for construction quality control.

[0004] Furthermore, in existing testing devices, the installation positions of the vibration motors are often unreasonable, easily leading to uneven force on the vibration table and unstable vibration transmission, which in turn affects the compaction effect of the castable and the accuracy of the flow test. The test plate and mold lack positioning structures, and mold misalignment can easily cause distortion of the initial flow state of the castable, further exacerbating test errors. To address the shortcomings of the existing technology, there is an urgent need for a simplified, low-cost, vibration-stable, and standardized refractory castable flowability testing device. Utility Model Content

[0005] To address the technical problems of existing refractory castable flowability testing devices, such as complex structure, inconsistent vibration and temperature, and inconsistencies in testing standards, the technical solution of this utility model is achieved through the following means: A refractory castable flowability testing device includes a vibration table and a testing component placed on the vibration table. The vibration table includes a support base, an elastic support, a vibration table, and a vibration motor. The vibration table is fixed to the top of the support base by the elastic support. The testing component includes a test plate and a cylindrical mold. The bottom of the test plate is fixedly connected to the upper part of the vibration table. The cylindrical mold is used to hold the castable and is placed at the center of the top of the test plate.

[0006] Furthermore, the support base is a hollow cuboid shape, including auxiliary support columns and four main support columns. The two ends of the auxiliary support columns are fixedly connected to the main support columns and are set at the bottom and top of the support base, respectively.

[0007] Furthermore, the vibration motor is fixed at the center of the auxiliary support column located at the bottom of the support base, and the rated frequency of the vibration motor is 50Hz and the amplitude is 0.5mm.

[0008] Furthermore, there are four elastic support members, which are fixedly connected to the top of the four main support columns.

[0009] Furthermore, the top surface of the test plate is provided with circular positioning lines and test lines. The positioning lines are used to position and place the cylindrical mold, and the test lines are used to test the flowability of the castable.

[0010] Furthermore, the positioning line and the test line are concentrically arranged with the center of the test board as the center. The test line includes several circles of different diameters, which are arranged outward from the center of the test line according to their diameter.

[0011] Furthermore, the test plate is made of stainless steel, and the surface roughness Ra of the top surface of the test plate is ≤1.6μm.

[0012] Furthermore, the cylindrical mold is a cylinder with a hollow center, and the lower diameter of the cylindrical mold is 50-100mm and the height is 60mm.

[0013] The beneficial effects of this utility model are: 1. The vibration table in this invention adopts a hollowed-out cuboid support base, combined with four symmetrically arranged elastic support components, so that the vibration table is subjected to uniform force and the vibration transmission is stable. The vibration motor is fixed at the bottom center of the support base, which further improves the vibration stability and avoids the test error caused by vibration offset of existing devices. Moreover, the overall structure has no redundant parts, and the production and manufacturing cost is only 1 / 5 of the existing high-precision devices. It is easy to produce and maintain, and is suitable for low-cost on-site testing needs.

[0014] 2. The test plate of this invention is equipped with concentric positioning lines and multi-specification test lines on its surface. The positioning lines ensure that the cylindrical mold is placed in the center, and the test lines can directly read the flow diameter data, reducing manual measurement errors. The parameters of the vibration motor are matched with commonly used vibration equipment in construction, the cylindrical mold adopts standardized dimensions, the test conditions are highly consistent with the construction scenario, and the test results are more valuable for reference and can accurately reflect the actual construction flowability of the castable.

[0015] 3. The overall device consists of only two core modules: a vibration table and test components. It is easy to assemble, and the test process does not require complicated debugging. The test time for a single group is ≤5 minutes. The cylindrical mold is equipped with a handle for quick demolding, and the test plate has a smooth surface that is easy to clean, which greatly improves the efficiency of on-site testing and is compatible with the operating habits of construction personnel.

[0016] 4. The test plate is made of stainless steel and the cylindrical mold is chrome-plated, both of which have good corrosion resistance and wear resistance and long service life. The device can be used with various refractory castables with fine particles and coarse aggregate (particle size ≤10mm), covering the types of castables commonly used on site and applicable to a wide range of scenarios. Attached Figure Description

[0017] Figure 1 This is a front view of the refractory castable fluidity testing device of this utility model; Figure 2 This is a top view of the test plate in this utility model.

[0018] In the diagram: 1. Support base; 101. Main support column; 102. Auxiliary support column; 2. Elastic support component; 3. Vibration table; 4. Vibration motor; 5. Test plate; 501. Positioning line; 502. Test line; 6. Cylindrical mold. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0022] The basics are as follows: Figure 1-2 As shown in the figure, this embodiment discloses a refractory castable fluidity testing device. The device includes a vibration table 3 and a testing assembly placed on the vibration table 3. The vibration table 3 includes a support base 1, an elastic support member 2, a vibration table 3, and a vibration motor 4. The support base 1 is a hollow cuboid shape, including auxiliary support columns 102 and four main support columns 101. The two ends of the auxiliary support columns 102 are fixedly connected to the main support columns 101 and are respectively set at the bottom and top of the support base 1.

[0023] Four elastic support members 2 are fixedly connected to the top of the four main support columns 101. The vibration table 3 is fixed to the top of the support base 1 by the elastic support members 2. The vibration motor 4 is fixed to the center of the auxiliary support column 102 located at the bottom of the support base 1. The rated frequency of the vibration motor 4 is 50Hz and the amplitude is 0.5mm.

[0024] The testing assembly includes a test plate 5 and a cylindrical mold 6. The bottom of the test plate 5 is fixedly connected to the upper part of the vibration table 3. The cylindrical mold 6 is used to hold the casting material and is placed at the top center of the test plate 5. The top surface of the test plate 5 is provided with circular positioning lines 501 and test lines 502. The positioning lines 501 are used to position the cylindrical mold 6, and the test lines 502 are used to test the flowability of the casting material. The test lines 502 are concentrically arranged with the center of the test plate 5 as the center. The positioning lines 501 and test lines 502 are concentrically arranged with the center of the test plate 5 as the center. The test lines 502 include several circles of different diameters, arranged outwards from the center of the test lines 502 according to their diameter. The test plate 5 is made of stainless steel, and the surface roughness Ra of the top surface of the test plate 5 is ≤1.6μm. The cylindrical mold 6 is a hollow cylinder with a bottom diameter of 100mm and a height of 60mm.

[0025] In practical use, clean the top surface of the test plate 5 to ensure that there are no residual casting material, dust or other impurities on the surface to avoid affecting the flow of casting material; check the operating status of the vibration motor 4 to ensure that the vibration is stable and there is no abnormal noise; confirm that the inner wall of the cylindrical mold 6 is smooth and there is no sticky residue.

[0026] Weigh the refractory castable raw materials according to the construction ratio, put them into the mixing equipment and stir until the material is uniform and viscous. Stop stirring and set aside. Accurately place the cylindrical mold 6 within the positioning line 501 of the test plate 5. Use a scraper to slowly fill the cylindrical mold 6 with the mixed refractory castable. After filling, use a scraper to scrape off the excess castable at the top of the cylindrical mold 6 so that the surface of the castable is flush with the upper edge of the cylindrical mold 6. Press the power switch to start the vibration motor 4 to compact the castable in the cylindrical mold 6 for 10 seconds, and then turn off the power switch.

[0027] Hold the top of the cylindrical mold 6 with both hands and quickly lift it vertically upwards to demold. At this point, the castable will remain cylindrical in the center of the test plate 5. Press the power switch again to start the vibration motor 4, allowing the castable to freely expand and flow under vibration for 30 seconds, then turn off the power switch. Observe the outline of the expanded castable, read the scale of test line 502 corresponding to the edge of the castable, and record the values ​​of the maximum diameter and the vertical diameter. Take the average of the two as the flowability data of the castable. At the same time, record the test environment temperature, refractory castable ratio, stirring time, and other information to complete this test.

[0028] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A refractory castable flowability testing device, characterized in that: The device includes a vibration table and a test assembly placed on the vibration table. The vibration table includes a support base (1), an elastic support (2), a vibration table (3), and a vibration motor (4). The vibration table (3) is fixed to the top of the support base (1) by the elastic support (2). The test assembly includes a test plate (5) and a cylindrical mold (6). The bottom of the test plate (5) is fixedly connected to the upper part of the vibration table (3). The cylindrical mold (6) is used to hold the casting material and is placed at the center of the top of the test plate (5).

2. The refractory castable flowability testing device according to claim 1, characterized in that: The support base (1) is a hollow cuboid shape, including an auxiliary support column (102) and four main support columns (101). The two ends of the auxiliary support column (102) are fixedly connected to the main support column (101) and set at the bottom and top of the support base (1).

3. The refractory castable flowability testing device according to claim 2, characterized in that: The vibration motor (4) is fixed at the center of the auxiliary support column (102) located at the bottom of the support base (1). The vibration motor (4) has a rated frequency of 50Hz and an amplitude of 0.5mm.

4. The refractory castable flowability testing device according to claim 2, characterized in that: The number of elastic support members (2) is 4, which are fixedly connected to the top of the 4 main support columns (101).

5. The refractory castable flowability testing device according to claim 1, characterized in that: The test plate (5) has a circular positioning line (501) and a test line (502) on its top surface. The positioning line (501) is used to position and place the cylindrical mold (6), and the test line (502) is used to test the flowability of the casting material.

6. The refractory castable fluidity testing device according to claim 5, characterized in that: The positioning line (501) and the test line (502) are concentrically arranged with the center of the test plate (5) as the center. The test line (502) includes several circles with different diameters, and the circles are arranged outward from the center of the test line (502) in order of diameter.

7. The refractory castable flowability testing device according to claim 1, characterized in that: The test plate (5) is made of stainless steel, and the surface roughness Ra of the top surface of the test plate (5) is ≤1.6μm.

8. The refractory castable flowability testing device according to claim 1, characterized in that: The cylindrical mold (6) is a cylindrical shape with a hollow center. The lower diameter of the cylindrical mold (6) is 50-100mm and the height is 60mm.

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