Contact type sintering machine material layer thickness detection device

Abstract

The utility model relates to the technical field of sintering, in particular to a material layer thickness detection device of a contact type sintering machine. The multiple measuring devices are evenly placed in the width direction of the sintering machine trolley. Each measuring device comprises a contact panel, a sleeve, a first connecting rod, a second connecting rod and a displacement sensor; the contact panel is placed on the upper surface of the moving material layer; when the thickness of a material layer changes, the contact panel can drive the first connecting rod to float up and down in the axial direction of the sleeve, then the first connecting rod drives the second connecting rod and the displacement sensor to float synchronously, meanwhile, the displacement sensor converts a displacement signal into a 4-20 ma current signal and outputs the 4-20 ma current signal to the analog input module, and then the window control center carries out picture configuration. And the thickness of the material layer is displayed in an operation picture, so that the change and distribution condition of the thickness of the material layer can be more accurately mastered in production operation.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering, in particular to a device for detecting the thickness of a material layer of a contact-type sintering machine. Background Art

[0002] The thickness of the material bed is a critical parameter in sintering production and a key indicator for evaluating sintering operations. It significantly impacts heat utilization and sinter yield. With the advancement of ironmaking technology, the requirements for sintered ore in blast furnaces continue to increase, making the adjustment of the material bed thickness increasingly important during sintering operations. Therefore, measuring the thickness of the sinter bed remains a pressing technical challenge for those skilled in the art. Utility Model Content

[0003] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0004] A device for detecting the thickness of a material layer in a contact sintering machine, wherein the device comprises a plurality of measuring devices and the measuring devices are evenly placed along the width direction of the sintering machine trolley;

[0005] Each measuring device includes a contact panel, a sleeve, a first connecting rod, a second connecting rod and a displacement sensor;

[0006] The contact panel is placed on the upper surface of the moving material layer;

[0007] The sleeve is connected to the upper surface of the wide belt operating platform above the material layer;

[0008] The first connecting rod is slidably connected to the inside of the sleeve in a vertical direction; the bottom of the first connecting rod extends to the upper surface of the contact panel and is connected thereto, the top of the first connecting rod extends to the outside of the sleeve and is integrally connected to the top of the second connecting rod through the connecting plate; the second connecting rod is parallel to the first connecting rod and is arranged outside the sleeve;

[0009] The displacement sensor is slidably connected to the outside of the sleeve, and the bottom of the second connecting rod is fixed to the displacement sensor body.

[0010] Furthermore, an upwardly inclined bending portion is provided at one end of the incoming material of the touch panel.

[0011] Furthermore, a connecting block is provided on the bottom material incoming side of the wide belt operating platform, and a pull rod is rotatably connected between the connecting block and the bent portion of the contact panel.

[0012] Furthermore, the bottom of the first connecting rod is rotatably connected to the contact panel through a through pin, and the top of the first connecting rod passes through the necked flat welding flange at the top of the sleeve, and the axial through hole of the necked flat welding flange matches the diameter clearance of the first connecting rod.

[0013] Furthermore, the top of the first connecting rod is provided with a thread and passes through the connecting plate, and the first connecting rod is fastened at the connection point by a gasket and a nut.

[0014] Furthermore, the top of the second connecting rod is provided with a thread and passes through the connecting plate, and the second connecting rod is fastened by a nut at the connection point.

[0015] Furthermore, the main body of the displacement sensor is detachably connected to two ends of a U-shaped fixing buckle bracket sleeved on the outside of the sleeve.

[0016] Furthermore, the bottom of the sleeve is detachably connected to the top of the wide belt operating platform via a flange.

[0017] Furthermore, the displacement sensor is a pull-rod type displacement sensor.

[0018] Furthermore, the measuring range of the pull rod displacement sensor is 0-200mm; the measuring range of the measuring device is 850mm-1050mm.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The utility model arranges a touch panel, a sleeve, a first connecting rod, a second connecting rod and a displacement sensor on the upper surface of the material layer. When the thickness of the material layer changes, the touch panel will drive the first connecting rod to float up and down along the axis of the sleeve, and then the first connecting rod will drive the second connecting rod and the displacement sensor to float synchronously. At the same time, the displacement sensor converts the displacement signal into a 4-20ma current signal and outputs it to the analog input module. The window control center then performs screen configuration and displays the material layer thickness on the operation screen. Therefore, the changes and distribution of the material layer thickness can be more accurately grasped during production operations.

[0021] The detection of the thickness of the sintering machine material layer is the core of controlling the material distribution. Real-time understanding of the material layer thickness of the sintering machine and timely adjustment can not only improve the quality of sintered ore, but also increase the output of sintered ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0023] Figure 1 Schematic diagram of the structure of this practical detection device.

[0024] In the figure: 1. Contact panel; 21. Bending part; 2. Displacement sensor; 3. Sleeve; 31. Slip-on flange with neck; 4. First connecting rod; 5. Second connecting rod; 6. Connecting block; 7. Pull rod; 8. Connecting plate; 9. U-shaped fixing clip bracket; 10. Flange. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0028] like Figure 1 As shown, the utility model provides a device for detecting the thickness of the material layer of a contact sintering machine. The width of the sintering trolley in this embodiment, that is, the width of the material layer, is 3 meters. Therefore, in order to fully and accurately grasp the thickness change of the entire material layer, preferably, 5 sets of measuring devices are provided in this embodiment, and are evenly placed along the width direction of the sintering machine trolley, and each set of measuring devices is spaced 750 mm apart.

[0029] Specifically, each measuring device includes a touch panel 1, a sleeve 3, a first connecting rod 4, a second connecting rod 5 and a displacement sensor 2;

[0030] The touch panel 1 is placed on the upper surface of the moving material layer; the sleeve 3 is connected to the upper surface of the wide belt operating platform above the material layer; the first connecting rod 4 is slidably connected to the inside of the sleeve 3, the bottom of the first connecting rod 4 extends to the upper surface of the touch panel 1 and is connected thereto, the top of the first connecting rod 4 extends to the outside of the sleeve 3 and is connected to the top of the second connecting rod 5 through the connecting plate 8 as a whole; the second connecting rod 5 is parallel to the first connecting rod 4 and is arranged on the outside of the sleeve 3, the bottom of the second connecting rod 5 is fixed to the displacement sensor 2, and the displacement sensor 2 is slidably connected to the outside of the sleeve 3; through the above technical solution, when the thickness of the material layer changes, the touch panel 1 will drive the first connecting rod 4 to float up and down along the axial direction of the sleeve 3, and then the first connecting rod 4 will drive the second connecting rod 5 and the displacement sensor 2 to float synchronously, and at the same time, the displacement sensor 2 converts the displacement signal into a 4-20ma current signal and outputs it to the analog input module. Then the window control center performs screen configuration and displays the material layer thickness on the operation screen, so that the changes and distribution of the material layer thickness can be more accurately grasped during production operation.

[0031] In order to facilitate the passage of materials through the touch panel 1 and prevent them from being stuck, a bent portion 11 inclined upward by 120° is provided at one end of the touch panel 1 where materials are fed.

[0032] When the material layer runs with the belt, there is friction between the contact panel 1 and the material, and the material may cause the contact panel 1 to produce a certain lateral displacement; in order to make the first connecting rod 4 always remain vertical, the bottom of the first connecting rod 4 is rotatably connected to the contact panel 1 through a through pin, so that the first connecting rod 4 can produce adaptive angle adjustment, and the top of the first connecting rod 4 passes through the necked flat welding flange 1031 at the top of the sleeve 3, and the axial through hole of the necked flat welding flange 1031 is matched with the diameter clearance of the first connecting rod 4, thereby limiting its own radial movement.

[0033] Furthermore, a connecting block 6 is provided on the bottom material-incoming side of the wide belt operating platform, and a pull rod 7 is rotatably connected between the connecting block 6 and the bending portion 11 of the contact panel 1. The pull rod 7 is located on the material-incoming side of the contact panel 1, so that the tension generated by the pull rod 7 offsets the lateral friction force of the material on the contact panel 1.

[0034] The top of the first connecting rod 4 is provided with a thread and passes through the connecting plate 8. The first connecting rod 4 is fastened at the connection point by a washer and a nut.

[0035] The top of the second connecting rod 5 is also provided with a thread and passes through the connecting plate 8. The second connecting rod 5 is fastened by a nut at the connection point.

[0036] The main body of the displacement sensor 2 is detachably connected to the two ends of a U-shaped fixed buckle bracket 9 sleeved on the outside of the sleeve 3. When the displacement sensor 2 floats up and down with the touch panel 1, the U-shaped fixed buckle bracket 9 can also slide axially along the outer surface of the sleeve 3.

[0037] The bottom of the sleeve 3 is detachably connected to the top of the wide belt operating platform via a flange 10 .

[0038] The displacement sensor 2 is a pull rod 7 type displacement sensor 2.

[0039] Since the material layer thickness during sintering production is not less than 850mm, the initial value of the measuring range of the measuring device is 850mm, and the range of the pull rod 7-type displacement sensor 2 is 0-200mm, so the measuring range of the measuring device is 850mm-1050mm, and the range is: (0-200mm)+850mm=850-1050mm.

[0040] Working principle:

[0041] Multiple measuring devices are evenly arranged on the sintering wide belt operating platform, and the position 850mm vertically upward from the sintering machine trolley grate is used as the starting point for stainless steel plate measurement. The side of the touch panel 1 with the bending portion 11 is placed horizontally on the material surface opposite to the travel direction of the sintering machine trolley. When the thickness of the sintering material layer changes (increases or decreases), the touch panel 1 rises or falls accordingly, thereby driving the first connecting rod 4, the second connecting rod 5 in the sleeve 3 and the displacement sensor 2 to produce synchronous displacement changes. The displacement sensor 2 converts the displacement signal into a 4-20ma current signal and outputs it to the SIMATIC S7-1500PLC analog input module. The PLC converts the five 4-20mA input electrical signals through A / D conversion into corresponding code values ​​between 5530 and 27648. Through TIA portal programming, these values ​​are proportionally converted into specific numerical engineering quantities. Then, through SIMATIC WinCC (Windows Control Center), the screen configuration is performed to display the material layer thickness at five points on the operation screen. This allows for a more accurate understanding of the changes and distribution of material layer thickness during production operations.

[0042] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A device for detecting the thickness of a material layer in a contact sintering machine, characterized by: There are multiple measuring devices and they are evenly placed along the width direction of the sintering machine trolley; Each measuring device includes a contact panel, a sleeve, a first connecting rod, a second connecting rod and a displacement sensor; The contact panel is placed on the upper surface of the moving material layer; The sleeve is connected to the upper surface of the wide belt operating platform above the material layer; The first connecting rod is slidably connected to the inside of the sleeve in a vertical direction; the bottom of the first connecting rod extends to the upper surface of the contact panel and is connected thereto, the top of the first connecting rod extends to the outside of the sleeve and is integrally connected to the top of the second connecting rod through the connecting plate; the second connecting rod is parallel to the first connecting rod and is arranged outside the sleeve; The displacement sensor is slidably connected to the outside of the sleeve, and the bottom of the second connecting rod is fixed to the displacement sensor body.

2. The device for detecting the thickness of the material layer of the contact sintering machine according to claim 1, characterized in that: An upwardly inclined bending portion is provided at one end of the incoming material of the touch panel.

3. The device for detecting the thickness of the material layer of the contact sintering machine according to claim 2, characterized in that: A connecting block is provided on the bottom material incoming side of the wide belt operating platform, and a pull rod is rotatably connected between the connecting block and the bent portion of the contact panel.

4. The device for detecting the thickness of the material layer of the contact sintering machine according to claim 1, wherein: The bottom of the first connecting rod is rotatably connected to the contact panel through a through pin, and the top of the first connecting rod passes through the necked flat welding flange at the top of the sleeve, and the axial through hole of the necked flat welding flange matches the diameter clearance of the first connecting rod.

5. The device for detecting the thickness of the material layer of the contact sintering machine according to claim 1, wherein: The top of the first connecting rod is provided with a thread and passes through the connecting plate, and the first connecting rod is fastened at the connection point by a washer and a nut.

6. The device for detecting the thickness of the material layer of the contact sintering machine according to claim 1, characterized in that: The top of the second connecting rod is provided with a thread and passes through the connecting plate, and the second connecting rod is fastened by a nut at the connection point.

7. The device for detecting the thickness of the material layer of the contact sintering machine according to claim 1, wherein: The main body of the displacement sensor is detachably connected to the two end portions of a U-shaped fixing buckle bracket sleeved on the outside of the sleeve.

8. The device for detecting the thickness of the material layer of the contact sintering machine according to claim 1, wherein: The bottom of the sleeve is detachably connected to the top of the wide belt operating platform via a flange.

9. The device for detecting the thickness of the material layer of the contact sintering machine according to claim 1, wherein: The displacement sensor is a pull-rod type displacement sensor.

10. The device for detecting the thickness of the material layer of the contact sintering machine according to claim 9, characterized in that: The measuring range of the pull rod displacement sensor is 0-200mm; the measuring range of the measuring device is 850mm-1050mm.

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