Sintering trolley burden thickness detection system, burden system and burden method

Abstract

The present invention discloses a detection system for the thickness of the material layer on a sintering trolley. The material forms a material flow in sequence through a bunker located at the top of the sintering trolley, a rotary feeder, and a distributor for material distribution, including: a laser head, which is arranged at the rear end of the sintering trolley along the conveying direction, and includes a working laser head that emits a linear laser beam towards the material flow and at least one reference laser head. Among them, the height of the laser beam of the working laser head is equal to the predetermined material layer height h0, and the heights and colors of the laser beams of the working laser head and the at least one reference laser head are different; a camera, whose lens faces the material flow and is used to obtain a video image of the material flow containing all the laser beams; a display module, which is connected to the camera and is used to display the video image. A sintering trolley material distribution system and a material distribution method. The present invention has the beneficial effect of providing the most direct and appropriate reference for the material distribution information.

Description

Technical Field

[0001] The present invention relates to the technical field of sinter production. More specifically, the present invention relates to a system for detecting the thickness of the burden layer on a sintering trolley, a burden distribution system, and a burden distribution method. Background Art

[0002] In the smelting industry, sintering is a process that, before blast furnace ironmaking production, mixes various powdered iron-containing raw materials in required proportions with fuel and solvent, adds an appropriate amount of water for granulation, spreads them evenly on a sintering trolley, and then undergoes ignition and suction sintering. The main task is to sinter the mixture into qualified sinter, and then send the qualified sinter into the blast furnace. Among them, the moisture in the mixture plays a key role in granulation. Appropriate moisture generates capillary force between the mixture particles, and they come into contact and stick tightly to each other during the rolling process of mixing and granulation, forming small pellets, which can improve the air permeability of the burden layer. After mixing and granulation, the mixture is spread evenly on the trolley according to corresponding technical requirements under the operation of the fire watcher for ignition and sintering. This process is an important link in the sintering process, and in this link, the operation technical level of the fire watcher directly affects the quality of the entire sintering process.

[0003] The daily work of the fire watcher is to judge the moisture content of the mixture through the burden distribution picture of the rotary feeder, and then control the feeding amount of the rotary feeder through a computer to make the burden layer thickness and burden layer air permeability of the mixture loaded on the trolley meet the corresponding technical requirements. To perfectly meet the specified technical requirements, it entirely depends on the personal experience judgment of the fire watcher. A qualified fire watcher needs to accumulate hundreds of hours of operation experience to accurately judge the moisture content of the mixture and perfectly control the burden layer thickness, which brings great technical difficulties and challenges to this position. Therefore, various technical devices for detecting the burden layer thickness have emerged as the times require.

[0004] The existing technologies in this field: The detection methods for the burden layer thickness of a sintering machine trolley include contact type and non-contact type. The contact type burden layer thickness gauge is mainly a float type, and the non-contact type burden layer thickness gauge is mainly an ultrasonic type. The float type thickness gauge transmits the detected layer thickness change to the transmitter through a float and a transmission rod. The transmitter emits a DC signal proportional to the layer thickness change. After the signal is processed by an electronic circuit, it is sent to a display instrument, and at the same time, a standard signal is also output for control. The disadvantage of this kind of layer thickness gauge is that it requires a float that can withstand high temperatures, and the connecting rod that drives the float may be deformed or damaged due to poor feeding of the rotary feeder and resulting in material accumulation. The ultrasonic level gauge uses a piezoelectric crystal as a probe to emit ultrasonic waves. When the ultrasonic waves encounter a two-phase interface, they are reflected back and received by the probe. The burden layer thickness is measured based on the time required for the ultrasonic waves to travel back and forth.

[0005] For example, Panzhihua Iron & Steel Vanadium Co., Ltd. disclosed in the article numbered 1000 - 7059(2014)05 - 0058 - 05 and titled "Sintering Material Layer Thickness Detection System Based on Binocular Stereo Vision Technology" that it uses two cameras to capture and identify the light spots formed by the light emitted from the laser source on the material surface, calculates the material layer thickness based on the differences in the positions of the light spots, and finally realizes the non - contact on - line detection of the sintering material layer thickness.

[0006] In the invention patent application No. 201410556071.X of Baoshan Iron & Steel Co., Ltd., a device for detecting the charging amount of the sintering machine trolley is proposed. Using the principle that the laser beam vertically projected onto the material surface will become a curve in the side view, the accurate material surface height is obtained through coordinate conversion.

[0007] Changsha Nonferrous Metallurgy Design and Research Institute disclosed in the invention patent application No. 201010560754.4 an air - suction sintering material layer laser thickness measuring device. The device includes a number of counterweight measuring rollers that can continuously roll as the sintering material moves forward, laser rangefinders that can respectively shoot at the center top surfaces of the counterweight measuring rollers, and an industrial control computer for processing the measurement data of the laser rangefinders. Through corresponding data processing methods, the information collected by each laser rangefinder is measured and processed to obtain an accurate material layer thickness value.

[0008] The above - mentioned technologies all have the following problems: ① The technologies are complex and difficult, and general sintering plants do not have sufficient funds and technical equipment investment; ② The measurement points are arranged after the seven - roll feeder or the round - roll feeder, resulting in a lag in the transmission of the trolley charging thickness information. Because there is a distance of about 1 - 2 m from the material surface under the round - roll feeder to the current technology measurement point, this brings a certain error to the charging operation of the fire - watching worker, and thus the sintering quality cannot be accurately controlled. Summary of the Invention

[0009] An object of the present invention is to solve at least the above problems and provide at least the advantages described later.

[0010] Another object of the present invention is to provide a sintering trolley charging thickness detection system, which transfers the detection target to the material surface (charging flow) under the round - roll feeder, that is, the position where the charging first occurs, and timely provides the most direct and appropriate charging information reference.

[0011] Another object of the present invention is to provide a sintering trolley charging system and a charging method, which set up a laser head and a camera, transfer the detection target to the material surface (charging flow) under the round - roll feeder, obtain the most direct and appropriate charging information reference, and realize accurate charging.

[0012] To achieve these objects and other advantages according to the present invention, a detection system for the thickness of the material layer on a sintering trolley is provided. The material forms a material flow in sequence through a bin located at the top of the sintering trolley, a rotary feeder, and a distributor for material layer formation, including:

[0013] A laser head, which is arranged at the rear end of the sintering trolley along the conveying direction, includes a working laser head that emits a linear laser beam towards the material flow and at least one reference laser head. Among them, the height of the laser beam of the working laser head is equal to the predetermined material layer height h0, and the heights and colors of the laser beams of the working laser head and at least one reference laser head are different;

[0014] A camera, whose lens faces the material flow, is used to obtain a video image of the material flow containing all the laser beams;

[0015] A display module, which is connected to the camera and is used to display the video image.

[0016] Preferably, the lens of the camera is arranged in the horizontal direction.

[0017] Preferably, there are multiple reference laser heads, and the multiple reference laser heads are divided into two groups. The laser beams of the two groups of reference laser heads are respectively spaced above and below the laser beam of the working laser head.

[0018] Preferably, among the multiple reference laser heads, there are two warning laser heads. The laser beams of the two warning laser heads are respectively located above and below the laser beam of the working laser head, and the distance between the laser beam of the warning laser head and the laser beam of the working laser head is equal to the warning distance h1.

[0019] Preferably, it further includes: a mounting frame, which is arranged at the rear end of the sintering trolley along the conveying direction. The mounting frame is cuboid-shaped and has an open end facing the sintering trolley. Corresponding mounting components are arranged on the mounting frame for each laser head. The multiple mounting components are arranged at intervals up and down. Each mounting component includes:

[0020] A tray, the rear ends of both sides of which are hinged to the mounting frame. Among them, the laser head corresponding to the tray is mounted on the top surface of the tray;

[0021] A pair of sliding rods, which are respectively arranged at the front ends of both sides of the tray. Arc-shaped slideways are penetrated through both sides of the mounting frame. The pair of sliding rods are slidably arranged in the pair of arc-shaped slideways, and the free ends penetrate out of the corresponding arc-shaped slideways, and the penetrated ends are screwed with nuts.

[0022] A material layer formation system for a sintering trolley, including:

[0023] A bin, a rotary feeder, and a distributor arranged at the top of the sintering trolley;

[0024] A leveling plate arranged above the sintering trolley and in front of the distributor;

[0025] Sintering trolley cloth thickness detection system, wherein the predetermined cloth height is equal to the bottom surface height of the leveling plate.

[0026] Preferably, it further includes:

[0027] An image recognition module, which is connected to the camera, is used to obtain the cloth flow video image and mark the cloth thickness line;

[0028] A cloth thickness determination module, which is connected to the image recognition module, is used to obtain the cloth average line by fitting according to the cloth thickness line and determine the cloth average thickness h2;

[0029] A feeding speed determination module, which is connected to the cloth thickness determination module, calculates Δh = |h0 - h2|, determines whether Δh is greater than h1, and if so, determines the feeding speed V2 = (h2 / h1)*V1, where V1 is the current feeding speed of the silo.

[0030] The cloth feeding method of the sintering trolley cloth system includes the following steps:

[0031] Adjust the feeding speed of the silo according to the cloth flow video image containing all laser beams obtained by the camera.

[0032] Preferably, adjusting the feeding speed of the silo specifically includes: marking the cloth thickness line according to the cloth flow video image containing all laser beams obtained by the camera, and adjusting the feeding speed of the silo according to the relative position relationship between the cloth thickness line and the laser beam.

[0033] Preferably, adjusting the feeding speed of the silo according to the relative position relationship between the cloth thickness line and the laser beam specifically includes:

[0034] Obtain the cloth average line by fitting according to the cloth thickness line and determine the cloth average thickness h2;

[0035] Calculate Δh = |h0 - h2|, determine whether Δh is greater than h1, and if so, determine the feeding speed V2 = (h2 / h1)*V1, where V1 is the current feeding speed of the silo.

[0036] The present invention has at least the following beneficial effects:

[0037] The detection target is transferred to the material surface (cloth flow) below the rotary feeder, which is the position where the cloth first occurs, and the most direct and appropriate cloth information reference is provided in a timely manner.

[0038] Other advantages, objectives and features of the present invention will be partially reflected by the following description, and partially will be understood by those skilled in the art through the research and practice of the present invention. Description of the Drawings

[0039] Figure 1 Schematic structural diagram of the burdening system of the sintering trolley according to one of the technical solutions of the present invention;

[0040] Figure 2 Schematic structural diagram of the burdening system of the sintering trolley according to one of the technical solutions of the present invention;

[0041] Figure 3 Schematic structural diagram of the mounting bracket and the laser head according to one of the technical solutions of the present invention;

[0042] Figure 4 Schematic structural diagram of the mounting bracket according to one of the technical solutions of the present invention.

[0043] The reference signs are specifically as follows: sintering trolley 1; silo 2; rotary feeder 3; distributor 4; working laser head 5; reference laser head 6; mounting bracket 7; tray 8; sliding rod 80; arc-shaped slideway 81; leveling plate 9. Detailed implementation manners

[0044] The present invention will be further described in detail below with reference to the accompanying drawings so that those skilled in the art can implement it according to the description in the specification.

[0045] It should be understood that the terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0046] As Figures 1-4 shown, the present invention provides a detection system for the thickness of the burden on the sintering trolley, which is arranged in cooperation with the burdening system of the sintering trolley. The material sequentially passes through the silo 2, the rotary feeder 3 and the distributor 4 located at the top of the sintering trolley 1 to form a burdening flow for burdening, and includes:

[0047] A laser head, which is arranged at the rear end of the sintering trolley 1 along the conveying direction, and includes a working laser head 5 that emits a linear laser beam towards the burdening flow and at least one reference laser head 6. Among them, the height of the laser beam of the working laser head 5 is equal to the predetermined burdening height h0. The heights and colors of the laser beams of the working laser head 5 and at least one reference laser head 6 are different, that is, the heights of the working laser head 5 and all the reference laser heads 6 are different, and the heights of all the reference laser heads 6 are different from each other. The colors of the working laser head 5 and all the reference laser heads 6 are different, but the colors of all the reference laser heads 6 can be the same for easy distinction and reference. The setting of each height is set according to actual needs;

[0048] A camera, whose lens is directed towards the burdening flow and is used to obtain a video image of the burdening flow including all the laser beams; preferably, the lens of the camera is arranged horizontally;

[0049] A display module, which is connected to the camera and is used to display the video image.

[0050] In the above technical solution, the front of the traveling direction of the sintering trolley 1 is the front, and the rear is the rear. Under normal working conditions, the circular roller feeder 3 can distribute a material layer with a fixed height at a fixed feeding speed. However, due to the occasional fluctuation of the moisture content of the mixed material, when the moisture content of the mixed material decreases, the capillary force weakens, making the mixed material dry and loose. More material is distributed at the feeding speed of the original circular roller feeder 3, and the material layer is higher and thicker, resulting in a smaller air permeability of the material layer. On the contrary, when the moisture content of the mixed material increases, less material is distributed at the feeding speed of the original circular roller feeder 3, and the material layer is lower and thinner, resulting in a larger air permeability of the material layer, both of which do not meet the sintering requirements. Currently, all existing technologies arrange the measurement points of the cloth thickness behind the cloth distributor 4 or the circular roller feeder 3. However, the information that the fire watcher most wants to master is the cloth situation of the material surface (cloth flow) under the circular roller feeder 3. However, there is still a distance of about 1-2 m from the current technical measurement point to the material surface under the circular roller, which brings a certain error to the manual (fire watcher) / automatic cloth operation, and thus the sintering quality cannot be accurately controlled. That is, when the circular roller feeder 3 is normally cloth, the fire watcher cannot see the leveling plate 9. To know the cloth effect, the corresponding adjustment can only be made after the material surface passes the leveling plate 9 and before entering the ignition furnace, which results in a relatively lagging adjustment action of the fire watcher. To overcome this drawback, a horizontal laser line (red) is projected under the circular roller feeder 3, and its height is the same as the horizontal height of the leveling plate 9. During use, the manual operation is specifically as follows: According to the operation habit of the fire watcher, obtain the cloth picture (cloth flow video image) of the circular roller feeder 3 through the camera. Based on the cloth picture, compare the relationship between the material layer and the expected (or technical requirement) material layer thickness (predetermined cloth height h0), and then adjust the feeding speed of the circular roller feeder 3 according to this relationship, so as to achieve the purpose of controlling the material layer thickness. In this process, h0 becomes the reference value of the cloth thickness for the fire watcher. Through the setting of the laser head, camera and display module, the fire watcher can intuitively obtain the corresponding relationship. There is a chromaticity difference between the falling material and the material surface in the actual cloth flow video image obtained through the camera, and the material layer height can be intuitively obtained. During the specific operation process, the material surface is wavy.

[0051] For example, set the laser beam of the working laser head 5 to red light. In the obtained fabric image, the height of the fabric is based on the red light line as the standard. At this time, the feeding speed of the rotary roller feeder 3 is also fixed according to this standard height. When the moisture content of the mixed material becomes dry and less, the material layer will become thicker, and the height will exceed the height of the red light. The reference laser head 6 gives further reference. When it exceeds a certain range, the operator in charge of observing the fire should slow down the feeding speed of the rotary roller feeder 3 to reduce the height of the material layer to be close to the height of the red light. When the moisture content of the mixed material becomes more and larger, the material layer will become thinner, and the height will be lower than the height of the red light. The reference laser head 6 gives further reference. When it exceeds a certain range, the operator in charge of observing the fire should increase the feeding speed of the rotary roller feeder 3 to make the height of the material layer reach close to the height of the red light. Only through such operations can the air permeability of the material layer be maintained at the same negative air pressure value, and the entire sintering process can proceed according to the quality standard. With this technical solution, the detection target is transferred to the material surface (fabric flow) below the rotary roller feeder 3, which is the position where the fabric first occurs, providing the most direct and appropriate fabric information reference in a timely manner.

[0052] In another technical solution, at least one reference laser head 6 is multiple. The multiple reference laser heads 6 are divided into two groups. The laser beams of the two groups of reference laser heads 6 are respectively located above and below the laser beam of the working laser head 5 at intervals. That is, the laser beam of one group of reference laser heads 6 is located above the laser beam of the working laser head 5, and this group of reference laser heads 6 is arranged at intervals above the laser beam of the working laser head 5, preferably at equal intervals. The laser beam of the remaining group of reference laser heads 6 is located below the laser beam of the working laser head 5, and this group of reference laser heads 6 is arranged at intervals below the laser beam of the working laser head 5, preferably at equal intervals. With this solution, through the two groups of reference laser heads 6 located above and below, it gives reference, enabling the operator to quickly and accurately judge, and improving the accuracy of the detection result.

[0053] In another technical solution, two of the multiple reference laser heads 6 are warning laser heads. The laser beams of the two warning laser heads are respectively located above and below the laser beam of the working laser head 5, and the distance between them and the laser beam of the working laser head 5 is equal to the warning distance h1. With this solution, each group of reference laser heads 6 includes a warning laser head, and the laser beam of this warning laser head in this group of reference laser heads 6 is the closest to the laser beam of the working laser head 5. The warning distance h1 is set such that when the height of the material surface exceeds or is lower than this warning distance, the feeding speed of the rotary roller feeder 3 needs to be adjusted. The warning distances h1 of the warning laser head located above and the warning laser head located below can be equal or not equal, which is specifically determined according to the actual situation.

[0054] In another technical solution, it further includes: a mounting frame 7, which is arranged at the rear end of the sintering trolley 1 along the conveying direction and is used to provide an installation space for the laser head and the camera. The mounting frame 7 is cuboid-shaped and is open at one end facing the sintering trolley 1. Mounting components are correspondingly arranged on the mounting frame 7 for each laser head, and a plurality of mounting components are arranged at intervals up and down. Each mounting component includes:

[0055] A tray 8, the rear ends of both sides of which are hinged to the mounting frame 7. Among them, the laser head corresponding to the tray 8 is mounted on the top surface of the tray 8;

[0056] A pair of sliding rods 80, which are respectively arranged at the front ends of both sides of the tray 8. Arc-shaped sliding grooves 81 penetrate through both sides of the mounting frame 7. A pair of sliding rods 80 are slidably arranged in a pair of arc-shaped sliding grooves 81, and the free ends thereof penetrate out of the corresponding arc-shaped sliding grooves 81. Nuts are screwed on the penetrating ends. After the nuts are tightened on the penetrating ends, they are abutted against the wall surface of the mounting frame 7 to form a support, so as to fix the pair of sliding rods 80, and further fix the laser head, realizing the adjustment of the installation angle of the laser head. The camera is also installed through the mounting frame 7, and it can be specifically installed in cooperation with the auxiliary support structure. By adopting this solution, the non-limited adjustment of the laser head angle is improved, and various height installation requirements are met.

[0057] As Figures 1-4 shown, the present invention provides a sintering trolley batching system, including:

[0058] ①. A bin 2, a rotary feeder 3, and a batcher 4 arranged at the top end of the sintering trolley 1. Among them, the batcher 4 is a multi-roller batcher 4, preferably a 7-roller batcher 4. During use, the material reaches the rotary feeder 3 through the bin 2, and then is guided to the batcher 4 through the rotary feeder 3, and the batcher 4 batches the material onto the surface of the trolley;

[0059] ②. A leveling plate 9 arranged above the sintering trolley 1 and in front of the batcher 4. After the batched material passes through the leveling plate 9, the problem of tooth formation on the material surface is solved, and the flatness of the material surface is maintained;

[0060] ③. A sintering trolley batching thickness detection system, including:

[0061] The laser head is provided at the rear end of the sintering trolley 1 along the conveying direction, and includes a working laser head 5 that emits a linear laser beam towards the material flow and at least one reference laser head 6. Among them, the height of the laser beam of the working laser head 5 is equal to the predetermined material height h0, and the heights and colors of the laser beams of the working laser head 5 and at least one reference laser head 6 are different. Preferably, there are multiple reference laser heads 6, and the multiple reference laser heads 6 are divided into two groups. The laser beams of the two groups of reference laser heads 6 are respectively spaced above and below the laser beam of the working laser head 5. Further preferably, among the multiple reference laser heads 6, there are two warning laser heads, and the laser beams of the two warning laser heads are respectively located above and below the laser beam of the working laser head 5, and the distance between them and the laser beam of the working laser head 5 is equal to the warning distance h1;

[0062] The camera has its lens facing the material flow and is used to obtain a video image of the material flow containing all the laser beams. Preferably, the lens of the camera is arranged horizontally;

[0063] The display module is connected to the camera and is used to display the video image. Among them, the predetermined material height is equal to the bottom surface height of the leveling plate 9.

[0064] In the above technical solution, in order to achieve certain sintering technical indicators at a certain stage, the technicians in the sintering workshop often reduce or increase the height of the leveling plate 9 behind the feeder 4 as a technical requirement. That is, the optimal layer thickness (predetermined material height h0) is different during different working periods, and it is specifically set according to the actual situation. Specifically: h0 = 75 cm;

[0065] It is required that the height of the material distributed by the fire watcher in each stage is not lower than the height of the leveling plate 9 and is infinitely close to being equal. Only in this way, after the material passes the leveling plate 9, the material surface will not cause teeth, and a perfect and flat material surface that meets the technical requirements can be obtained. Therefore, the height of the leveling plate 9 is the standard height for the fire watcher to refer to. However, when the rotary roller feeder 3 is normally feeding materials, the fire watcher cannot see the leveling plate 9. To know the effect of their material distribution, they can only make corresponding adjustments after the material surface passes the leveling plate 9 and enters the ignition furnace. This results in a relatively lagging adjustment action of the fire watcher. Below the rotary roller feeder 3, a linear horizontal laser beam (specifically, it can be set to red) is projected, and its height is the same as the horizontal height of the leveling plate 9. The height of the red laser beam refers to the height of the leveling plate 9 and is the same as the height of the leveling plate 9. During use, the material distribution method of the sintering trolley material distribution system includes the following steps:

[0066] The material reaches the rotary roller feeder 3 through the bunker 2, and then is guided to the feeder 4 through the rotary roller feeder 3, and the material is distributed onto the surface of the trolley through the feeder 4

[0067] The control camera obtains the fabric flow video image containing all the laser beams at a predetermined time interval (the acquisition time interval is set according to the actual operation requirements), and displays it through the display module;

[0068] Then, the stoker adjusts the feeding speed of the rotary roller feeder 3 according to the fabric flow video image displayed on the display module;

[0069] Alternatively, the feeding speed of the rotary roller feeder 3 is adjusted intelligently based on the fabric flow video image. With this technical solution, during the fabric feeding process, the detection target is transferred to the material surface (fabric flow) below the rotary roller feeder 3, providing the most direct and appropriate fabric information reference accurately and in a timely manner.

[0070] In another technical solution, it further includes:

[0071] An image recognition module, which is connected to the camera, is used to obtain the fabric flow video image, mark the fabric thickness line, and display it through the display module;

[0072] A fabric thickness determination module, which is connected to the image recognition module, is used to obtain the average fabric line by fitting according to the fabric thickness line, and determine the average fabric thickness h2. Among them, the method for determining the average fabric thickness specifically includes:

[0073] Ⅰ. Taking the camera coordinates as a reference, set the origin coordinates of the fabric flow video image, further determine the highest point and the lowest end of the fabric thickness line, and obtain the corresponding coordinates. Specifically, the highest point coordinates are (x H , y H ), the lowest point coordinates are (x L , y L ), obtain the midpoint coordinate y H = (y H + y L ) / 2 along the y-axis direction. Further obtain the y-axis coordinate y G of the laser beam of the working laser head 5 on the fabric flow video image, then h2 = (y H / y G ) * h0;

[0074] Ⅱ. Taking the camera coordinates as a reference, set the origin coordinates of the fabric flow video image, further determine the integral area S enclosed by the fabric thickness line. Since S = x * h2, where x is the length of the material on the x-axis and is known, obtain the average fabric thickness h2;

[0075] The feeding speed determination module, which is connected to the cloth thickness determination module, calculates Δh = |h0 - h2|, determines whether Δh is greater than h1, and if so, determines the feeding speed V2 = (h2 / h1) * V1, where V1 is the current feeding speed of the rotary roller feeder 3. With this solution, during the cloth feeding process, the detection target is transferred to the material surface (cloth flow) below the rotary roller feeder 3, and based on the cloth information, the current average cloth thickness h2 is automatically determined, and the feeding speed V2 is determined.

[0076] Embodiment 1

[0077] The cloth feeding method of the sintering trolley cloth feeding system includes the following steps:

[0078] The material reaches the rotary roller feeder 3 through the bunker 2, and then is guided to the cloth distributor 4 by the rotary roller feeder 3, and the cloth is fed onto the surface of the trolley through the cloth distributor 4.

[0079] Control the cloth flow video image containing all the laser beams obtained by the camera at regular intervals (the acquisition time interval is set according to actual operation requirements);

[0080] Based on the cloth flow video image, mark the cloth thickness line and display it through the display module;

[0081] Adjust the feeding speed of the rotary roller feeder 3 according to the relative position relationship between the cloth thickness line and the laser beam.

[0082] Embodiment 2

[0083] The cloth feeding method of the sintering trolley cloth feeding system includes the following steps:

[0084] The material reaches the rotary roller feeder 3 through the bunker 2, and then is guided to the cloth distributor 4 by the rotary roller feeder 3, and the cloth is fed onto the surface of the trolley through the cloth distributor 4.

[0085] Control the cloth flow video image containing all the laser beams obtained by the camera at regular intervals (the acquisition time interval is set according to actual operation requirements);

[0086] Based on the cloth flow video image, mark the cloth thickness line and display it through the display module;

[0087] Obtain the cloth average line by fitting the cloth thickness line, and determine the cloth average thickness h2;

[0088] Calculate Δh = |h0 - h2|, determine whether Δh is greater than h1, and if so, determine the feeding speed V2 = (h2 / h1) * V1, where V1 is the current feeding speed of the rotary roller feeder 3. With this solution, during the cloth feeding process, the detection target is transferred to the material surface (cloth flow) below the rotary roller feeder 3, and based on the cloth information, the current average cloth thickness h2 is automatically determined, and the feeding speed V2 is determined.

[0089] The number of devices and the processing scale described herein are used to simplify the description of the present invention. Applications, modifications, and variations of the sintering trolley material distribution thickness detection system, material distribution system, and material distribution method of the present invention will be apparent to those skilled in the art.

[0090] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated examples described herein.

Claims

1. Sintering trolley burden thickness detection system, where materials pass through a bunker, a rotary feeder, and a distributor located at the top of the sintering trolley in sequence to form a burden flow for burdening. It is characterized in that, Comprising: A laser head, which is arranged at the rear end of the sintering trolley along the conveying direction, and includes a working laser head that emits a linear laser beam towards the material flow and at least one reference laser head. Among them, the height of the laser beam of the working laser head is equal to the predetermined material layer height h0, and the heights and colors of the laser beams of the working laser head and at least one reference laser head are different; A camera, whose lens is oriented towards the material flow, and is used to obtain a video image of the material flow containing all laser beams; A display module, which is connected to the camera and is used to display the video image; A mounting rack, which is arranged at the rear end of the sintering trolley along the conveying direction. The mounting rack is cuboid-shaped and has an open end towards the sintering trolley. Mounting components are correspondingly arranged on the mounting rack for each laser head, and multiple mounting components are arranged at intervals up and down. Each mounting component includes: A tray, whose two rear ends on both sides are hinged to the mounting rack. Among them, the laser head corresponding to the tray is installed on the top surface of the tray; A pair of sliding rods, which are respectively arranged at the front ends on both sides of the tray. Arc-shaped slideways penetrate through both sides of the mounting rack, and a pair of sliding rods are slidably arranged in a pair of arc-shaped slideways and the free ends penetrate out of the corresponding arc-shaped slideways, and the penetrated ends are screwed with nuts.

2. The sintering trolley burden thickness detection system according to claim 1, wherein The lens of the camera is arranged horizontally.

3. The sintering trolley burden thickness detection system according to claim 1, characterized in that There are multiple at least one reference laser heads, and the multiple reference laser heads are divided into two groups. The laser beams of the two groups of reference laser heads are respectively spaced above and below the laser beam of the working laser head.

4. The sintering trolley burden thickness detection system according to claim 2, wherein Among the multiple reference laser heads, there are two warning laser heads. The laser beams of the two warning laser heads are respectively located above and below the laser beam of the working laser head, and the distances from the laser beams of the working laser head are equal to the warning distance h1.

5. Sintering trolley charging system, characterized in that, Comprising: A bunker, a rotary feeder, and a distributor arranged at the top end of the sintering trolley; A leveling plate arranged above the sintering trolley and in front of the distributor; The sintering trolley material layer thickness detection system according to any one of claims 1-4, wherein the predetermined material layer height is equal to the bottom surface height of the leveling plate.

6. The sintering trolley burdening system according to claim 5, characterized in that, Further comprising: A picture recognition module, which is connected to the camera and is used to obtain the video image of the material flow and mark the material layer thickness line; A material layer thickness determination module, which is connected to the picture recognition module and is used to fit the material layer average line based on the material layer thickness line and determine the average material layer thickness h2; A feeding speed determination module, which is connected to the material layer thickness determination module, calculates Δh = |h0 - h2|, determines whether Δh is greater than h1. If so, determines the feeding speed V2 = (h2 / h1) * V1, where V1 is the current feeding speed of the bunker.

7. The cloth feeding method of the cloth feeding system of the sintering trolley according to claim 5, characterized in that Including the following steps: Adjust the feeding speed of the bunker according to the video image of the material flow containing all laser beams obtained by the camera.

8. The cloth feeding method of the cloth feeding system of the sintering trolley according to claim 7, characterized in that, Adjusting the feeding speed of the bunker specifically is: according to the video image of the material flow containing all laser beams obtained by the camera, mark the material layer thickness line, and adjust the feeding speed of the bunker according to the relative position relationship between the material layer thickness line and the laser beam.

9. The cloth feeding method of the cloth feeding system of the sintering trolley according to claim 8, characterized in that, Adjusting the feeding speed of the bunker according to the relative position relationship between the material layer thickness line and the laser beam specifically is: Fit the material layer average line based on the material layer thickness line and determine the average material layer thickness h2; Calculate Δh = |h0 - h2|, and determine whether Δh is greater than h1. If so, determine the feeding speed V2 = (h2 / h1) * V1, where V1 is the current feeding speed of the silo.

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