A method for positioning support rollers in an annular cooler

Abstract

This invention discloses a method for positioning support rollers in an annular cooler. It primarily determines the position of the current support roller by using the installation positions of the two adjacent support rollers to the currently obscured support roller as a basis. This avoids the problem of large positional deviations caused by using fixed objects as reference points in existing technologies when measuring support roller positions. The main technical solution of this invention is: a method for positioning support rollers in an annular cooler, determining a first installation point of a first support roller adjacent to the currently obscured support roller; determining a second installation point of a second support roller adjacent to the currently obscured support roller; and determining the current installation point of the current support roller based on the first and second installation points. This invention is mainly used for the installation of support rollers in an annular cooler.

Description

Technical Field

[0001] This invention relates to the field of installation technology for support rollers in annular coolers, and more particularly to a method for positioning support rollers in annular coolers. Background Technology

[0002] The annular cooler is a crucial piece of equipment used in the sintering process to cool the finished sintered ore. Its stable operation is essential for the smooth operation of the entire production line. The current mainstream annular cooler structure includes the following components: a transmission device, rotating section, support rollers, side baffle rollers, pressure rails, frame, feed hopper, cover, safety device at the discharge point (trolley buffer), air box, discharge hopper, discharge area cover, double-layer ash discharge valve, and discharge chute. Its operating principle involves the rotating section resting on a ring of evenly distributed support rollers. The drive unit, through pin-tooth transmission, drives the entire device to rotate on these support rollers. The inner ring of side baffle rollers ensures that the rotating section does not deviate from its designated path. Therefore, the accuracy of the support rollers' installation position, elevation, and angle is fundamental to the stable operation of the annular cooler.

[0003] Currently, most equipment installation teams use long steel tape measures and string lines, or rangefinders to measure the center position of the support rollers when installing them. However, in actual installation, the center position of the support rollers is often obscured. Sometimes it is obscured by the equipment frame. More seriously, in renovation projects, existing equipment or buildings such as fans and chimneys located within the ring cooler often obscure the position of the support rollers over a large area. In this case, installation workers often rely on experience and nearby frame columns as reference points for measurement, so the measurement results are often quite inaccurate.

[0004] Existing support roller installation processes, regardless of whether a theodolite, rangefinder, or total station is used, require that there be no obstructions between the center point of the annular chiller and the center point of the support roller (i.e., the point being measured). However, in reality, especially in many annular chiller retrofit projects, the surrounding environment is complex and there are too many obstacles. As a result, when measuring the position of the support roller, a considerable number of support roller positions cannot be directly measured and other estimation methods are used, such as using a nearby frame column as a reference. However, the position deviation of the column itself is relatively large, that is, the installation accuracy of the column is less than the installation accuracy of the support roller. In other words, the reference point position is not accurate enough, and the measurement results often have very large deviations. Summary of the Invention

[0005] In view of this, embodiments of the present invention provide a method for positioning the support roller of an annular cooler, which is mainly used to solve the problem of large deviation in the installation positioning point of the support roller in a blocked position.

[0006] To achieve the above objectives, the present invention mainly provides the following technical solutions:

[0007] This invention provides a method for positioning support rollers in an annular cooler, used in an annular cooler, the method comprising:

[0008] Determine the first mounting point of the first support roller adjacent to the currently obscured support roller;

[0009] Determine the second mounting point of the second support roller adjacent to the currently blocked support roller;

[0010] The current installation point of the current support roller is determined based on the first installation point and the second installation point.

[0011] The ring cooler includes multiple frames for connecting support rollers. The multiple frames include a first frame and a second frame. The first frame is used to install the first support roller, and the second frame is used to install the second support roller.

[0012] Determining the first mounting point of the first support roller adjacent to the currently obscured support roller includes:

[0013] Using a measurement tool, mark the first mounting point on the first frame based on the center point of the annular cooler and the radius of the support roller;

[0014] Determining the second mounting point of the second support roller adjacent to the currently blocked support roller includes:

[0015] Using a measurement tool, mark the second mounting point on the second frame based on the center point of the annular cooler, the radius of the support roller, and the first mounting point.

[0016] The marking of the first mounting point on the first rack includes:

[0017] Mark a first reference arc on the first frame, and mark the center position of the first reference arc as the first mounting point.

[0018] The marking of the second mounting point on the second rack includes:

[0019] Mark a second reference arc on the second frame, and determine a second mounting point on the second reference arc based on the second reference arc and the first angle between the second support roller and the first support roller.

[0020] The annular cooler includes multiple frames for connecting support rollers. The multiple frames include a current frame for mounting the current support roller. The current mounting point of the current support roller is determined based on a first mounting point and a second mounting point, including:

[0021] Calculate the first spacing between adjacent support rollers;

[0022] Using a measurement tool, mark a third reference arc on the current rack based on the first mounting point and the first spacing;

[0023] Using a measurement tool, mark a fourth reference arc on the current rack based on the second mounting point and the first spacing;

[0024] The intersection of the third and fourth reference arcs is taken as the current installation point.

[0025] The calculation of the first spacing between adjacent support rollers includes:

[0026] The first spacing is determined based on the second included angle between the adjacent support rollers and the radius of the support rollers.

[0027] The annular cooler includes multiple frames for connecting support rollers. Each frame includes a support body and an extension plate connected to the support body. The extension plate is used to connect the support rollers. The extension plate extends beyond the frame at least in the circumferential direction around the center point of the annular cooler. The annular cooler also includes an auxiliary plate with an arc-shaped edge having a radius equal to that of the support rollers. The multiple frames include a first frame and a second frame. The first frame is used to install the first support roller, and the second frame is used to install the second support roller.

[0028] Determining the first mounting point of the first support roller adjacent to the currently obscured support roller includes:

[0029] Using a measuring tool, based on the center point of the annular cooler and the radius of the support roller, a first reference point is marked on the first circumferential side edge of the extension plate on the first frame, and a second reference point is marked on the second circumferential side edge of the extension plate on the first frame.

[0030] Use the curved edge of the auxiliary plate to correspond to the first reference point and the second reference point;

[0031] The fifth reference arc is marked on the extension plate on the first frame based on the arc edge;

[0032] Mark the center point of the fifth reference arc as the first mounting point.

[0033] The determination of the second mounting point of the second support roller adjacent to the currently obscured support roller includes:

[0034] Using a measurement tool, based on the center point of the annular cooler and the radius of the support roller, mark a third reference point on the first circumferential side edge of the extension plate on the second frame, and mark a fourth reference point on the second circumferential side edge of the extension plate on the second frame.

[0035] Use the curved edge of the auxiliary plate to correspond to the third and fourth reference points;

[0036] The sixth reference arc is marked on the extension plate on the second frame based on the arc edge;

[0037] Calculate the second gap between the first support roller and the second support roller;

[0038] Using a measurement tool, mark the seventh reference arc on the extension plate on the second rack, based on the first mounting point and the second spacing;

[0039] The intersection of the sixth and seventh reference arcs is used as the second mounting point.

[0040] The methods also include:

[0041] Verify whether the distance between the current installation point and the first and second installation points is the first spacing.

[0042] The measuring tools include at least one of the following: theodolite, steel wire, and ruler.

[0043] This invention proposes a method for positioning support rollers in an annular cooler. It primarily determines the installation positions of two adjacent support rollers (the first and second support rollers) to the currently obscured support roller. Based on these positions, the current support roller's position is determined. This avoids the problem in existing technologies where using fixed objects as reference points for support roller position measurement leads to significant deviations in support roller position due to object positional errors. This invention uses the measured support roller position as a benchmark, ensuring accurate marking of the obscured support roller's position, accurate installation of the support roller, and stable operation of the annular cooler. Furthermore, the marking process can be achieved using only conventional measuring tools, resulting in low cost and ease of operation. Attached Figure Description

[0044] Figure 1 This is a partial structural schematic diagram of an annular cooler provided in an embodiment of the present invention;

[0045] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the annular cooler at position KK.

[0046] Figure 3 This is a partially enlarged structural schematic diagram of an annular cooler provided in an embodiment of the present invention;

[0047] Figure 4 A flowchart of a method for positioning support rollers in an annular cooler provided in an embodiment of the present invention. Detailed Implementation

[0048] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the following detailed description, in conjunction with the accompanying drawings and preferred embodiments, describes the specific implementation, structure, features, and effects of a ring cooler support roller positioning method proposed according to the present invention.

[0049] On the one hand, such as Figure 4As shown, this embodiment of the invention provides a method for positioning support rollers in an annular cooler. The annular cooler includes multiple frames for connecting support rollers. More specifically, each frame includes a column (111) and a radial beam (112). The column (111) connects the bearing surface and the radial beam (112), supporting the radial beam (112). The bearing surface can be the ground. The annular cooler has a center point O, which is the foundation point for installation. This point can be an auxiliary marker on an observation platform on the ground. Multiple frames are evenly arranged around the center point O. The outer contour of the radial beam (112) is approximately cuboid, extending in a direction away from the center point O, or radially along the circumference centered on the center point O. The support rollers can include an inner ring support roller and an outer ring support roller. One inner ring support roller and one outer ring support roller are connected to each frame, with the inner ring support roller located between the center point O and the outer ring support roller. The distance from the inner ring support roller to the center point O of the annular cooler is r, and the distance from the outer ring support roller to the center point O of the annular cooler is R. Ideally, the inner ring support rollers should be evenly distributed on a circle with radius r centered at the center point O of the annular cooler, and the outer ring support rollers should be evenly distributed on a circle with radius R centered at the center point O of the annular cooler. On the design drawings of the annular cooler, the radius r of the inner ring support rollers, the radius R of the outer ring support rollers, and the unit angle α between adjacent support rollers are known. It is worth noting that the angles mentioned here, as well as the first and second angles mentioned below, are theoretically the angles between the lines connecting the center point of the support roller to the center point O of the annular cooler. This application aims to propose a method for accurately determining the position of each support roller based on known conditions, to guide the installation of the support rollers. In the following embodiments, for ease of explanation, the measurement or marking of the inner ring support rollers is used as an example; the outer ring support rollers follow the same principle. In the following text, the position of the support roller refers to the center position of the support roller during installation, or it can be the position of a certain reference point agreed upon on the support roller. That is, when installing the support roller, the center point of the support roller or the agreed reference point of the support roller should be installed in accordance with the marked installation point.

[0050] More specifically, the multiple racks include a first rack (110), a second rack (120), and a current rack (130). The first rack (110), the second rack (120), and the current rack (130) have the same structure, all including the aforementioned column (111) and radial beam (112), which will not be described again. Figure 1In this configuration, radial beams (112) are omitted in all frames except the first frame (110), such as the second frame (120) and the current frame (130). Multiple support rollers include a first support roller (210), a second support roller (220), and a current support roller (230). The first frame (110) is used to mount the first support roller (210), the second frame (120) is used to mount the second support roller (220), and the current frame (130) is used to mount the current support roller (230). The first support roller (210) and the second support roller (220) are two circumferentially adjacent support rollers of the current support roller (230), and there are obstructions (300) such as fans and chimneys between the current support roller (230) and the center point O of the annular cooler.

[0051] The methods include:

[0052] S1. Determine the first mounting point A of the first support roller (210) adjacent to the currently obscured support roller (230).

[0053] The first installation point A can be the center point of the first support roller (210). Specifically, the method for determining the first installation point A can be to use a measuring tool to mark the first installation point A on the first frame (110) based on the center point O of the ring cooler and the radius r of the support roller. The measuring tool can be at least one of a theodolite, a steel wire, or a ruler, which will not be described in detail below. If a theodolite is used, the theodolite is placed at the center point O of the ring cooler, and a first reference arc is marked on the first frame (110) with the radius r of the support roller as the radius. In specific operation, multiple points can be marked on the first frame (110) at a distance r from the center point O of the ring cooler, and then the multiple points are connected to form the first reference arc. Alternatively, a steel ruler can be used. A steel ruler of radius r of the support roller is stretched, one end of the steel ruler is fixed at the center point O of the ring cooler, and multiple points are marked on the first frame (110) with the other end of the steel ruler as the reference, forming the first reference arc. The center position of the first reference arc is marked as the first installation point A. The center position refers to the intersection of the first reference arc and the centerline of the radial beam (112) in the circumferential direction. The centerline of the radial beam (112) can be measured and drawn, or the centerline of the radial beam (112) has machining marks when it is machined, or the center point of the first reference arc can be determined using a ruler or the like.

[0054] S2. Determine the second mounting point B of the second support roller (220) adjacent to the currently obscured support roller (230).

[0055] The second mounting point B can be the center point of the second support roller (220). Specifically, a measuring tool can be used to mark the second mounting point B on the second frame (120) based on the center point O of the annular cooler, the radius r of the support roller, and the first mounting point A. The second mounting point B is determined with the first mounting point A as a reference, so that even if the first mounting point A has an error, such as an error when finding the center position of the first reference arc, the second mounting point B can have the same error as the first mounting point A in the circumferential direction of the radius r, thereby improving the accuracy of the support roller spacing and reducing the influence of circumferential positioning error. In a more specific embodiment, a theodolite can be used, placed at the center point O of the annular cooler, and the second reference arc can be marked on the second frame (120) with the radius r of the support roller as the radius. In specific operation, multiple points can be marked on the second frame (120) at a distance r from the center point O of the annular cooler, and then multiple points can be connected to form the second reference arc. Alternatively, a steel ruler of radius r can be used. One end of the steel ruler is fixed at the center point O of the annular cooler, and multiple points are marked on the second frame (120) using the other end of the steel ruler as a reference, forming a second reference arc. Based on the second reference arc and the first angle between the second support roller (220) and the first support roller (210), the second installation point B is determined on the second reference arc. Since the first support roller (210) and the second support roller (220) are separated by the current support roller (230), the first angle is twice the unit angle α of the adjacent support rollers, that is, the first angle is 2α. The first angle is theoretically the angle between the line connecting the first support roller (210) and the center point O of the annular cooler and the line connecting the second support roller (220) and the center point O of the annular cooler. Using a theodolite, a line OB' is drawn at intervals of the first angle, based on the line OA connecting the first installation point A and the center point O of the annular cooler. The intersection of line OB' and the second reference arc is the second installation point B.

[0056] It is worth noting that if there is no current support roller (230), or when determining the position of the third support roller (240) adjacent to the first support roller (210), the aforementioned method can be used in the same way. For example, for the third support roller (240) adjacent to the first support roller (210), draw a reference arc on the third frame (140) corresponding to the third support roller (240), find the third mounting point D on the reference arc, and the line 0D connecting the third mounting point D and the center point O of the annular cooler is separated from the line 0A connecting the first mounting point A and the center point O of the annular cooler by the unit angle α of the adjacent support roller. In this way, the measurement of all support roller mounting points can be performed.

[0057] S3. Determine the current installation point C of the current support roller (230) based on the first installation point A and the second installation point B.

[0058] The current installation point C can be the center point of the current support roller (230). Specifically, step S3 further includes: S3.1 Calculating the first distance L between adjacent support rollers. The first distance L is determined based on the second included angle between adjacent support rollers and the radius of the support roller. The second included angle is the unit included angle α between adjacent support rollers, and the radius of the support roller is r, then L = 2 × r × sin(α / 2).

[0059] S3.2 Using a measuring tool, mark a third reference arc on the current frame (130) based on the first installation point A and the first spacing L. If a theodolite is used, place the theodolite at the first installation point A and mark the third reference arc on the current frame (130) with the first spacing L as the radius. In specific operation, multiple points can be marked on the current frame (130) at a distance of the first spacing L from the first installation point A, and then the multiple points can be connected to form the third reference arc. Alternatively, a steel ruler can be used. Stretch a steel ruler of the length of the first spacing L, fix one end of the steel ruler at the first installation point A, and mark multiple points on the current frame (130) with the other end of the steel ruler as the reference, thus forming the third reference arc.

[0060] S3.3 Using a measurement tool, a fourth reference arc is marked on the current rack (130) based on the second mounting point B and the first spacing L. The method is similar to that for the third reference arc and will not be described again here.

[0061] The intersection of the third and fourth reference arcs (S3.4) is taken as the current mounting point C. The third and fourth reference arcs are circular arcs centered at the first mounting point A and the second mounting point B, with a radius of the first distance L. The intersection of the third and fourth reference arcs on the current frame (130) is the current mounting point C. For all obscured support rollers, the mounting points can be measured sequentially using the aforementioned method.

[0062] This invention proposes a method for positioning support rollers in an annular cooler. The method primarily determines the installation positions of two adjacent support rollers (the first and second support rollers) to the currently obscured support roller. Based on these positions, the current support roller's position is determined. This avoids the problem in existing technologies where using fixed objects as reference points for support roller position measurement leads to significant positional deviations due to object positional errors. This invention uses the measured support roller position as a benchmark, ensuring accurate marking of the obscured support roller's position, accurate installation, and stable operation of the annular cooler. Furthermore, the marking process can be achieved using only conventional measuring tools, resulting in low cost and ease of operation.

[0063] The aforementioned implementation method can be used for surveying in new construction projects, but in many renovation projects, there will be gaps between the observation point and the measured point. Figure 2The upper-middle column (400) is installed after the support rollers are installed in the new construction project; therefore, it is not involved in the new construction project. The upper-middle column (400) will affect the measurement and drawing of the aforementioned first and second reference arcs. To solve the above problem, the following method can be used:

[0064] The frame includes a support body and an extension plate (113). The support body includes the aforementioned column (111) and radial beam (112). The extension plate (113) is connected to the radial beam (112) and is used to connect the support roller. The extension plate (113) extends beyond the radial beam (112) at least in the circumferential direction around the center point O of the annular cooler. That is, the width of the extension plate (113) extends beyond both sides of the radial beam (112), based on the fact that both sides of the width of the extension plate (113) can be observed from the center point O of the annular cooler. The annular cooler also includes an auxiliary plate (500). The auxiliary plate (500) includes an arc-shaped edge with a radius equal to the radius r of the support roller. For example, if the auxiliary plate (500) is an arc-shaped plate, the outer surface of the auxiliary plate (500) is an arc-shaped surface with a radius r of the support roller.

[0065] The aforementioned step S1, determining the first mounting point A of the first support roller (210) adjacent to the currently obscured support roller (230), includes: as follows Figure 3 As shown, in step S1.1, using a measuring tool, based on the center point O of the annular cooler and the radius r of the support roller, a first reference point M is marked on the first circumferential side edge of the extension plate (113) corresponding to the first support roller (210), and a second reference point N is marked on the second circumferential side edge of the extension plate (113) corresponding to the first support roller (210). The first reference point M and the second reference point N within the visible range of the extension plate (113) can be measured using a theodolite.

[0066] S1.2, use the curved edge of the auxiliary plate (500) to correspond to the first reference point M and the second reference point N. That is, as follows: Figure 3 As shown, the curved edge is pressed onto the first reference point M and the second reference point N.

[0067] S1.3 Mark the fifth reference arc on the extension plate (113) corresponding to the first support roller (210) based on the arc edge. Specifically, draw a line along the arc edge on the extension plate (113).

[0068] S1.4 Mark the center point of the fifth reference arc as the first installation point A.

[0069] The corresponding step S2 determines the second mounting point B of the second support roller (220) adjacent to the currently blocked support roller (230), including:

[0070] S2.1 Using a measurement tool, based on the center point O of the annular cooler and the radius r of the support roller, a third reference point is marked on the first circumferential side edge of the extension plate (113) corresponding to the second support roller (220), and a fourth reference point is marked on the second circumferential side edge of the extension plate (113) corresponding to the second support roller (220).

[0071] S2.2 The arc-shaped edge of the auxiliary plate (500) corresponds to the third and fourth reference points;

[0072] S2.3 Mark the sixth reference arc on the extension plate (113) corresponding to the second frame (120) based on the arc edge;

[0073] S2.4 Calculate the second gap between the first support roller (210) and the second support roller (220).

[0074] S2.5 Using a measurement tool, a seventh reference arc is marked on the extension plate (113) corresponding to the second frame (120) based on the first mounting point A and the second spacing.

[0075] The intersection of the sixth and seventh reference arcs in S2.6 is designated as the second mounting point B.

[0076] Due to observation limitations, it is not possible to determine the second mounting point B on the second reference arc by observing the first angle between the second support roller (220) and the first support roller (210) as described in the previous embodiment. Therefore, the second mounting point B is found by drawing an arc with the first mounting point A as the center. The second spacing = 2 × r × sinα. This solves the problem of determining the first mounting point A and the second mounting point B in the case where the radial beam (112) is obstructed and it is impossible to draw an arc directly on the radial beam (112). Then, the current mounting point C can be determined based on the first mounting point A and the second mounting point B, as described in the previous embodiment.

[0077] In one embodiment, the method further includes: S4, verifying whether the distance between the current installation point and the first installation point A and the second installation point B is the first spacing L.

[0078] After determining the current installation point C, errors may occur in the process of drawing the third and fourth reference arcs, causing the position of the current installation point C to deviate. The position of the current installation point C can be verified by directly using a measurement tool to measure whether the distance between the first installation point A and the current installation point C, and the distance between the second installation point B and the current installation point C, is equal to the first spacing L. If so, the current installation point C is confirmed to be valid; otherwise, repeat step S3 to remeasure the current installation point C.

[0079] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for positioning support rollers in an annular cooler, characterized in that, For use in an annular cooler, the method includes: Determine the first mounting point of the first support roller adjacent to the currently obscured support roller; Determine the second mounting point of the second support roller adjacent to the currently blocked support roller; The current mounting point of the current support roller is determined based on the first mounting point and the second mounting point; The annular cooler includes multiple frames for connecting the support rollers. The multiple frames include a first frame and a second frame. The first frame is used to install the first support roller, and the second frame is used to install the second support roller. The determination of the first mounting point of the first support roller adjacent to the currently blocked support roller includes: Using a measurement tool, mark the first mounting point on the first frame based on the center point of the annular cooler and the radius of the support roller; Determining the second mounting point of the second support roller adjacent to the currently blocked support roller includes: Using a measurement tool, mark the second mounting point on the second frame based on the center point of the annular cooler, the radius of the support roller, and the first mounting point; The step of marking the first mounting point on the first rack includes: Mark a first reference arc on the first frame, and mark the center position of the first reference arc as the first mounting point; The step of marking the second mounting point on the second rack includes: Mark a second reference arc on the second frame, and determine the second mounting point on the second reference arc based on the second reference arc and the first angle between the second support roller and the first support roller. The annular cooler includes multiple frames for connecting the support rollers. The multiple frames include a current frame for mounting the current support roller. The step of determining the current mounting point of the current support roller based on the first mounting point and the second mounting point includes: Calculate the first spacing between adjacent support rollers; Using a measurement tool, a third reference arc is marked on the current rack based on the first mounting point and the first spacing; Using a measurement tool, a fourth reference arc is marked on the current rack based on the second mounting point and the first spacing; The intersection of the third reference arc and the fourth reference arc is taken as the current installation point; The steps for calculating the first spacing between adjacent support rollers include: The first spacing is determined based on the second included angle between the adjacent support rollers and the radius of the support rollers.

2. The method for positioning the support roller of the annular cooler according to claim 1, characterized in that, The method further includes: Verify whether the distance between the current installation point and the first installation point and the second installation point is the first spacing.

3. The method for positioning the support roller of the annular cooler according to any one of claims 1-2, characterized in that, The measuring tools include at least one of the following: theodolite, steel wire, and ruler.

4. A method for positioning support rollers in an annular cooler, characterized in that, For use in an annular cooler, the method includes: Determine the first mounting point of the first support roller adjacent to the currently obscured support roller; Determine the second mounting point of the second support roller adjacent to the currently blocked support roller; The current mounting point of the current support roller is determined based on the first mounting point and the second mounting point; The annular cooler includes multiple frames for connecting the support rollers. Each frame includes a support body and an extension plate connected to the support body. The extension plate is used to connect the support rollers, and its circumferential extension range around the center point of the annular cooler is greater than that of the frame. The annular cooler also includes an auxiliary plate with an arcuate edge having a radius equal to that of the support rollers. The multiple frames include a first frame and a second frame. The first frame is used to install the first support roller, and the second frame is used to install the second support roller. The steps for determining the first mounting point of the first support roller adjacent to the currently obscured support roller include: Using a measuring tool, based on the center point of the annular cooler and the radius of the support roller, a first reference point is marked on the first circumferential side edge of the extension plate on the first frame, and a second reference point is marked on the second circumferential side edge of the extension plate on the first frame. The arc-shaped edge of the auxiliary plate corresponds to the first reference point and the second reference point; A fifth reference arc is marked on the extension plate on the first frame based on the arc-shaped edge; Mark the center point of the fifth reference arc as the first mounting point; The steps for determining the second mounting point of the second support roller adjacent to the currently obscured support roller include: Using a measuring tool, based on the center point of the annular cooler and the radius of the support roller, a third reference point is marked on the first circumferential side edge of the extension plate on the second frame, and a fourth reference point is marked on the second circumferential side edge of the extension plate on the second frame. The arc-shaped edge of the auxiliary plate corresponds to the third reference point and the fourth reference point; A sixth reference arc is marked on the extension plate on the second frame based on the arc-shaped edge; Calculate the second distance between the first support roller and the second support roller; Using a measurement tool, a seventh reference arc is marked on the extension plate on the second rack, based on the first mounting point and the second spacing; The intersection of the sixth reference arc and the seventh reference arc serves as the second mounting point.

5. The method for positioning the support roller of the annular cooler according to claim 4, characterized in that, The measuring tools include at least one of the following: theodolite, steel wire, and ruler.

Images