A front window moving mechanism and an ash fusion tester

Abstract

This application discloses a front window moving mechanism and an ash fusion property tester, comprising: a frame, a motion mechanism, a spring buffer mechanism, and a lens; the motion mechanism includes a stepper motor fixed to the frame and an actuating component mounted on its output shaft; the spring buffer mechanism is in flexible contact with the actuating component; the lens is in contact with the spring buffer mechanism and is movably mounted on the frame; wherein the actuating component drives the spring buffer mechanism to deform, causing the lens to move in an opening and closing displacement relative to the frame. By controlling the opening and closing of the front window lens, the contamination of the lens can be effectively reduced, thereby extending the lens maintenance cycle, improving testing efficiency, and ensuring the normal operation of the instrument and the accuracy of the test results.

Description

Technical Field

[0001] This application relates to the field of coal feeding system technology for power plants, and more specifically, to a front window moving mechanism and an ash fusion tester. Background Technology

[0002] In the energy sector, coal is a primary fuel, and its quality assessment has a crucial impact on the operational safety of power plant boilers. Ash fusion property is one of the important indicators for assessing coal quality, directly related to whether sintering problems exist in power plant boilers and the severity of sintering. Ash fusion property also has a profound impact on the normal operation of equipment such as boilers and cement vertical kilns.

[0003] An ash fusion tester is used to detect the fusibility of coal ash cones. In China, the carbon sealing method is a commonly used testing method. In this process, the ash cone sample is placed on a tray, with carbonaceous material placed underneath, and then both are placed in the constant-temperature zone of a high-temperature furnace tube. The ash cone sample is heated in a sealed, airtight environment until the sample melts to below 1.5 mm, at which point the experiment ends. A transparent glass viewing window is installed at the front of the furnace for manual observation or recording of the entire process by camera.

[0004] During the experiment, the highest temperature can reach 1200-1500°C. During the heating process from room temperature to 500°C, the sample and carbonaceous materials release water vapor and volatiles, which accumulate in the furnace. As the furnace temperature rises, the pressure inside the furnace gradually increases, and hot gases such as water vapor and volatiles continuously move towards the observation window, condensing on the relatively cool front viewing window glass. As the fog on the glass increases, the front viewing window lens becomes blurred, which affects the identification of characteristic temperatures.

[0005] To address this issue, current methods typically involve manually replacing the viewing window lens or using positive pressure dust removal. Manual lens replacement is inconvenient due to the high temperature of the lens. Positive pressure dust removal is highly effective, but its structure is complex. Utility Model Content

[0006] To address the aforementioned technical problems, this application provides a simple front window movement mechanism that allows the front window to open, extending the lens cleaning cycle and ensuring the smooth progress of the experiment.

[0007] The present application provides a front window moving mechanism, the specific technical solution of which is as follows: a frame, a motion mechanism, a spring buffer mechanism, and a lens; The motion mechanism includes a stepper motor fixed to the frame and an actuating component mounted on its output shaft; The spring-loaded buffer mechanism makes flexible contact with the actuating component; The lens is in contact with the spring buffer mechanism and can be movably mounted on the frame. The actuating component drives the deformation of the spring buffer mechanism, causing the lens to move in an opening and closing displacement relative to the frame.

[0008] Preferably, the spring buffer mechanism includes an upper spring and a lower spring connected by a hinge. The lower spring is fixed to the frame. The actuating component contacts the upper spring and drives it to deform, thereby causing the lens to open and close relative to the frame.

[0009] Preferably, the actuating component is a cam mechanism, which is driven to contact the upper spring by the rotation of the output shaft of the stepper motor.

[0010] Preferably, the contact surface between the cam mechanism and the upper spring is a convex curved surface.

[0011] Preferably, the upper spring sheet is further provided with a light-transmitting hole in the middle, and the axis of the light-transmitting hole coincides with the center of the lens.

[0012] Preferably, the frame is provided with a guide groove, the lens is embedded in the guide groove, and moves relative to the frame by opening and closing along the groove.

[0013] Preferably, the guide groove is formed inside the frame, and the lens moves inward relative to the frame along the groove.

[0014] Preferably, the spring buffer mechanism is made of spring steel, and its contact surface with the lens is provided with a silicone buffer layer.

[0015] This application also provides an ash fusion tester including a front window moving mechanism, and other structures include: furnace assembly, sample feeding mechanism, camera mechanism, and heat insulation plate; The heat insulation plate is installed at the front end of the furnace assembly and is positioned between the front window moving mechanism and the furnace assembly; The camera mechanism has its lens positioned at the center of the spring buffer mechanism to capture the operation of the sample delivery mechanism.

[0016] Preferably, the sample delivery mechanism specifically includes: a sample delivery rod, a ash cone support plate, and an ash cone; The sample delivery rod is provided with a gray cone support plate at its end, the gray cone is placed on the gray cone support plate, and the camera mechanism can observe the gray cone through the lens.

[0017] The front viewing window mechanism provided by this invention effectively reduces lens contamination by controlling the opening and closing of the front viewing window, thereby extending the lens maintenance cycle, improving testing efficiency, and ensuring the normal operation of the instrument and the accuracy of test results. Specifically, it involves designing a movable front viewing window. During the heating process up to 500°C, the front viewing window can be opened to allow water vapor and volatiles to escape promptly. From 500°C until the end of the experiment, the front viewing window can be closed to maintain a non-circulating airflow within the furnace. This structure helps reduce the impact of glass fogging and improves experimental accuracy. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of the front window's moving mechanism; Figure 2 Here is a structural diagram of the cam mechanism; Figure 3 This is a structural diagram of the spring mechanism; Figure 4 Diagram showing the lens opening status of the front window moving mechanism; Figure 5 This is a structural diagram of an ash fusion tester.

[0020] Figure Labels 1. Frame; 11. Guide groove; 2. Motion mechanism; 21. Stepper motor; 22. Cam mechanism; 3. Spring buffer mechanism; 31. Upper spring; 311. Light transmission hole; 32. Hinge; 33. Lower spring; 4. Lens; 5. Camera mechanism; 6. Front window movement mechanism; 7. Heat insulation plate; 8. Sample feeding mechanism; 81. Sample feeding rod; 82. Ash cone support plate; 83. Ash cone; 9. Furnace assembly. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0025] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0026] The specific embodiments of this utility model are written in a progressive manner.

[0027] See Figures 1 to 4 In this embodiment, specifically as follows: Figure 1 As shown, a front window moving mechanism includes: a frame 1, a moving mechanism 2, a spring buffer mechanism 3, and a lens 4. The motion mechanism 2, as the main motion structure, specifically includes a stepper motor 21 fixed to the frame 1, and an actuating component mounted on the output shaft of the stepper motor 21. The spring buffer mechanism 3 is in flexible contact with the actuating component to avoid the power output of the actuating component from impacting the spring buffer mechanism 3; The lens 4 is in contact with the spring buffer mechanism 3 and can be movably mounted on the frame 1; The moving component drives the spring buffer mechanism 3 to deform, causing the lens 4 to move open and close relative to the frame 1, thereby reducing the dirt on the lens 4, extending the maintenance cycle of the lens 4, and improving testing efficiency.

[0028] Preferably, the specific structure of the spring buffer mechanism 3 is further defined. In this embodiment, for example... Figure 3 As shown, the spring buffer mechanism 3 includes an upper spring 31 and a lower spring 33 connected by a hinge 32, and the lower spring 33 is fixed to the frame 1; It is understood that the actuating component contacts the upper spring 31 and drives it to deform, thereby causing the lens 4 to move in an opening and closing displacement relative to the frame 1; The lens 4 can open inward or outward relative to the frame 1 to separate the lens 4 from the frame 1 so as to release water vapor and volatiles in a timely manner. Specifically, in this embodiment, the lens 4 opens inward relative to the frame 1 and is hinged along the bottom of the lens 4.

[0029] Furthermore, the specific structure of the motion mechanism 2 is further defined. In this embodiment, for example... Figure 2 As shown, the actuating component is specifically a cam mechanism 22. The output shaft of the stepper motor 21 rotates, causing the cam mechanism 22 to contact the upper spring 31. The specific action is as follows: Figure 4 The lens 4 is in a closed state when the actuating component abuts against the upper spring 31. When the cam mechanism 22 of the actuating component is rotated, the lens 4 is driven to open inward.

[0030] Furthermore, the contact area between the actuating mechanism and the spring buffer mechanism 3 is further defined, such as... Figure 1 and Figure 4 As shown, in this embodiment, the contact surface between the cam mechanism 22 and the upper spring 31 is a convex curved surface portion, so as to achieve better contact with the upper spring 31.

[0031] Furthermore, the structure of the upper spring 31 is further defined to better observe the movements inside the coal furnace through the lens 4 and to avoid visual interference from the upper spring 31, such as... Figure 3 As shown, the upper spring sheet 31 is also provided with a light-transmitting hole 311 in the middle, and the axis of the light-transmitting hole 311 coincides with the center of the lens 4 to facilitate observation.

[0032] Preferably, the structure of the frame 1 is further defined to better provide space for the placement of the lens 4, such as... Figure 1 and Figure 4As shown, in this embodiment, the frame 1 is provided with a guide groove 11, the lens 4 is embedded in the guide groove 11, and moves open and close relative to the frame 1 along the groove.

[0033] Furthermore, the location of the guide groove 11 is further defined. The guide groove 11 is opened on the inner side of the frame 1, which facilitates the lens 4 to open and close relative to the frame 1 along the bottom of the groove.

[0034] Preferably, in order to ensure the service life of the front window moving mechanism, in this embodiment, the spring buffer mechanism 3 is made of spring steel to give it better elasticity, and its contact surface with the lens 4 is provided with a silicone buffer layer to avoid scratching the lens 4.

[0035] At the same time, such as Figure 5 As shown, this application also provides an ash fusion tester containing the aforementioned front window moving mechanism 6. In addition to the aforementioned front window moving mechanism 6, its structure specifically includes: furnace assembly 9, sample delivery mechanism 8, camera mechanism 5, and heat insulation plate 7. The heat insulation plate 7 is installed at the front end of the furnace assembly 9 and is disposed between the front window moving mechanism 6 and the furnace assembly 9; The camera mechanism 5 has its lens facing the center of the spring buffer mechanism 3 to capture the action of the sample delivery mechanism 8, thereby achieving clear observation of the coal sample ash cone.

[0036] Furthermore, such as Figure 5 As shown, in this embodiment, the sample delivery mechanism 8 specifically includes: a sample delivery rod 81, a ash cone support plate 82, and an ash cone 83; The sample delivery rod 81 is provided with a gray cone support plate 82 at its end, and the gray cone 83 is placed on the gray cone support plate 82. The camera mechanism 5 can observe the gray cone 83 through the lens 4.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A forward-viewing window movement mechanism, characterized in that, include: Frame, motion mechanism, spring buffer mechanism, lens; The motion mechanism includes a stepper motor fixed to the frame and an actuating component mounted on its output shaft; The spring-loaded buffer mechanism makes flexible contact with the actuating component; The lens is in contact with the spring buffer mechanism and can be movably mounted on the frame. The actuating component drives the deformation of the spring buffer mechanism, causing the lens to move in an opening and closing displacement relative to the frame.

2. The front window moving mechanism according to claim 1, characterized in that, The spring buffer mechanism includes an upper spring and a lower spring connected by a hinge. The lower spring is fixed to the frame. The actuating component contacts the upper spring and drives it to deform, thereby causing the lens to open and close relative to the frame.

3. The front window moving mechanism according to claim 2, characterized in that, The actuating component is specifically a cam mechanism, which is driven to contact the upper spring by the rotation of the output shaft of the stepper motor.

4. The front window moving mechanism according to claim 3, characterized in that, The contact surface between the cam mechanism and the upper spring plate is a convex curved surface.

5. The front window moving mechanism according to claim 4, characterized in that, The upper spring sheet is also provided with a light-transmitting hole in the middle, and the axis of the light-transmitting hole coincides with the center of the lens.

6. The front window moving mechanism according to claim 1, characterized in that, The frame is provided with a guide groove, and the lens is embedded in the guide groove and moves relative to the frame by opening and closing along the groove.

7. The front window moving mechanism according to claim 6, characterized in that, The guide groove is formed inside the frame, and the lens moves inward relative to the frame along the groove.

8. The front window moving mechanism according to any one of claims 1 to 7, characterized in that, The spring buffer mechanism is made of spring steel, and its contact surface with the lens is provided with a silicone buffer layer.

9. An ash fusion property tester, characterized in that, Includes: furnace assembly, sample delivery mechanism, front window movement mechanism as described in any one of claims 1-8, camera mechanism, and heat insulation plate; The heat insulation plate is installed at the front end of the furnace assembly and is positioned between the front window moving mechanism and the furnace assembly; The camera mechanism has its lens positioned at the center of the spring buffer mechanism to capture the operation of the sample delivery mechanism.

10. The ash fusion property tester according to claim 9, characterized in that, The sample delivery mechanism specifically includes: a sample delivery rod, a ash cone support plate, and an ash cone; The sample delivery rod is provided with a gray cone support plate at its end, the gray cone is placed on the gray cone support plate, and the camera mechanism can observe the gray cone through the lens.

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