Coke oven track installation method

Abstract

A coke oven track installation method is characterized by comprising the following steps of a, foundation inspection and process embedded part acceptance inspection, b, surveying and setting out, c, steel rail hoisting in place, d, base plate installation and adjustment, e, measurement and correction, f, track fixing, welding and polishing, g, measurement and correction reinspection and h, grouting material pouring. The coke oven rail installation method has the advantages that the steel rail installation process is clear, key items, requirements and targets of inspection of all stages are clear, rail installation operation is easy, additional equipment and manpower do not need to be added, and cost is low.

Description

Technical Field

[0001] The invention belongs to the technical field of coke oven installation, in particular to a coke oven rail installation method. Background Art

[0002] Coke oven rails are devices that provide guidance and support for the operation of coke oven machinery. Coke oven machinery primarily serves the coke oven production process, used for coal loading, coke pushing, coke receiving, and smoke dust collection. Coke oven rails ensure that the coke oven machinery moves accurately along a prescribed route, aligning its relative position with the coke oven itself, allowing the coke oven machinery to precisely serve the coke oven's production.

[0003] The track structure of the coke pusher section typically consists of a track plate securing the track to the track beam, which is then fixed to T-shaped steel embedded in the concrete using pre-buried bolts. The overall structural design and installation of the track must ensure sufficient strength to meet the requirements of coke oven mechanical operation. The track acceptance standards are high, with elevation deviations of no more than 3mm and position deviations of no more than 3mm. However, controlling installation accuracy is difficult in actual projects.

[0004] Therefore, the known coke oven rail installation method has the above-mentioned inconveniences and problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a safe and reliable coke oven rail installation method.

[0006] To achieve the above objectives, the technical solution of the present invention is: A coke oven rail installation method, characterized by comprising the following steps: a. Basic inspection and acceptance of embedded parts include the following steps: (1) Several embedded parts are pre-embedded in the concrete structure below the coke oven track rails. The embedded parts are inspected and accepted before concrete pouring. The embedded parts include a steel member with a T-shaped cross section, a bottom plate, two vertical rods, and two pre-embedded bolts. The horizontal surface of the T-shaped steel member is supported by the bottom of the rails through an adjustment plate. (2) The two vertical rods are arranged on both sides of the upright pole of the T-shaped steel member, the top ends of the vertical rods are connected to the horizontal surface of the T-shaped steel member, the vertical rods vertically pass through the bottom plate downward so that the bottom plate is located in the upper middle part of the vertical rods, and the lower middle part of the vertical rods is connected to the rectangular steel frame by bolts; (3) The two embedded bolts are respectively set on both sides of the track rails. The embedded bolts pass through the horizontal surface of the T-shaped steel structure and vertically downward so that the bottom end of the embedded bolts is fixedly connected to the bottom plate at the bottom; the debris on the upper horizontal surface of the T-shaped steel structure is cleaned; b. Measurement and setting out, including the following steps: (1) Draw the track centerline on the horizontal surface of the T-shaped steel structure. The track centerline must be drawn from the coke oven area coordinate control point; rail clamps are installed on both sides of the track rails; (2) The embedded parts elevation is marked on the horizontal surface of the T-shaped steel structure set every 12m on the track rail. The elevation mark is also set on the outside of the embedded bolts. The elevation must be derived from the coke oven area coordinate control point; c. Rail hoisting in place Place the rails on the horizontal surface of the T-shaped steel structure so that the center of the rails coincides with the center line of the track. Check the spacing between each set of rails and control the spacing deviation within ±2mm. Check the spacing between each rail and the center line of the coke oven and control the spacing deviation within ±2mm. d. Install the adjustment pad Use the adjustment pad to adjust the track elevation, and the elevation deviation should be controlled within ±2mm; e. Measurement calibration Check the deviation of the track centerline, the track elevation deviation, the deviation between the tracks, and the deviation between the track and the coke oven centerline; f. Track fixing, welding and grinding After each section of rail has been measured and accepted, the embedded bolts are tightened to fix it. Aluminothermic welding is used. The interface should be polished after welding. The horizontal deviation of the interface should not exceed 1mm. g. Measurement, calibration and re-inspection: After polishing is completed, re-check the center line, elevation and spacing; h. Grouting The formwork is set up according to the design requirements in terms of height and width, and the grouting material is poured in sections of 8000mm to complete the installation of the coke oven track.

[0007] The coke oven rail installation method of the present invention can also be further implemented by adopting the following technical measures.

[0008] In the aforementioned method, in step a, the horizontality deviation of the upper surface of the T-shaped steel member is controlled within ±2 mm.

[0009] In the aforementioned method, in step b, the elevation deviation of the embedded bolts is controlled within ±2 mm.

[0010] In the aforementioned method, the deviation of the track centerline should be controlled within ±1mm.

[0011] After adopting the above technical solution, the coke oven rail installation method of the present invention has the following advantages: 1. Clarified the process of rail installation; 2. Clarify the key items, requirements and objectives of each stage of inspection; 3. The track installation is easy and does not require additional equipment and manpower, so the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of the structure of an embodiment of the present invention.

[0013] Figure 2 This is a flowchart of the installation process according to an embodiment of the present invention.

[0014] In the figure: 1-embedded bolts; 2-rail; 3-rail holder; 4-adjustment pad; 5-T-shaped steel member; 6-grouting material; 7-concrete foundation structure; 8-Z-shaped steel frame; 9-coke oven centerline; 10-bottom plate; 11-rectangular steel frame. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the embodiments and the accompanying drawings.

[0016] Example 1 The coke pusher track for the steel plant's new coke oven project is 1,000 meters long. Multiple embedded components (including pre-embedded bolts, T-shaped steel members, and rectangular steel frames) are installed beneath the rails. These embedded components are embedded in the concrete foundation structure 7 to form a single unit supporting the rails and the coke oven machinery above. The rails are secured to the T-shaped steel members with pre-embedded bolts and track pressure plates, with the steel frames serving as the supporting structure for the T-shaped steel members. Adjustment pads are used between the embedded components to adjust the rails. The required installation accuracy is as follows: ① The center distance of the track must not deviate by more than 3mm over its entire length; ② The height difference of the track must not exceed 3mm over its entire length; ③ The allowable deviation of the distance from the track centerline to the coke oven centerline must not exceed ±3mm; ④ The perpendicularity between the carbonization chamber centerline and the track centerline must not exceed 3mm; ⑤ The track elevation must not deviate by more than 3mm over its entire length, with the difference between adjacent elevations not exceeding 2mm.

[0017] Please refer to Figure 1 and Figure 2 The coke oven rail installation method of the present invention comprises the following steps: Step 1: Basic inspection and acceptance of embedded parts, including the following steps: (1) Several embedded parts are pre-embedded in the concrete structure below the coke oven track rails. The embedded parts are inspected and accepted before concrete pouring. The embedded parts include a steel member with a T-shaped cross section, a bottom plate, two vertical rods, and two embedded bolts 1. The horizontal surface of the T-shaped steel member 5 is supported by the bottom of the rail 2 through an adjustment pad 4. (2) The two vertical rods are arranged on both sides of the upright pole of the T-shaped steel member, the top ends of the vertical rods are connected to the horizontal surface of the T-shaped steel member, and the vertical rods vertically pass through the bottom plate 10 and the middle-shaped steel frame 8 downward, so that the bottom plate is located in the upper middle part of the vertical rods, and the lower middle part of the vertical rods is connected to the rectangular steel frame 11 by bolts; (3) The two embedded bolts 1 are respectively arranged on both sides of the track rails. The embedded bolts 1 pass through the horizontal surface of the T-shaped steel structure and are vertically downward so that the bottom end of the embedded bolts 1 is fixedly connected to the bottom plate 10 at the bottom; the debris on the upper horizontal surface of the T-shaped steel structure is cleaned.

[0018] Step 2: Measure and lay out 1. Draw the track centerline 9 on the horizontal surface of the T-shaped steel structure. The track centerline must be drawn from the coke oven area coordinate control point. Rail clamps 3 are installed on both sides of the track rail 2; 2. Mark the embedded parts elevation on the horizontal surface of the T-shaped steel member 5 set at every 12m on the track rail. The elevation mark is also set on the outside of the embedded bolt 1. The elevation must be derived from the coke oven area coordinate control point.

[0019] 3. The deviation of the track center line and elevation marking is controlled within ±1mm.

[0020] Step 3: Hoist the rails into place 1. Place the rail on the embedded parts so that the center of the rail coincides with the center line of the track.

[0021] 2. Check the spacing between each set of rails and control the spacing deviation within ±2mm.

[0022] 3. Check the distance between each rail and the center line of the coke oven, and control the distance deviation within ±2mm.

[0023] Step 4: Install the adjustment plate Use adjustment pads to adjust the track elevation, and place the adjustment pads directly under the rails.

[0024] The elevation deviation is controlled within ±2mm.

[0025] Step 5: Measurement and Calibration (Fine Adjustment) 1. Check the track centerline deviation.

[0026] 2. Check the track elevation deviation.

[0027] 3. Check the deviation between the rails and the deviation between the rails and the center line of the coke oven.

[0028] Step 6: Rail fixing, welding and polishing 1. Each section of rail can be fixed with embedded bolts only after it has been measured and accepted.

[0029] 2. Use aluminum heat welding. After welding, the interface should be polished with special tools. The horizontal deviation of the interface should not be greater than 1mm.

[0030] Step 7. Measurement and correction (re-inspection): After grinding is completed, check the center line, elevation and spacing again.

[0031] Step 8: Grouting 1. Set up the template according to the height and width required by the design 2. The grouting material 6 is poured in sections of 8000mm to complete the installation of the coke oven track.

[0032] The present invention has substantial characteristics and significant technological advancements. The coke oven rail installation method of the present invention clarifies the process of rail installation, emphasizes key items and requirements for inspection at each stage, has clear objectives, is easy to operate, does not require additional equipment and manpower, is low in cost, and can ensure that the rail installation accuracy meets the production process requirements, avoiding rework or affecting later production.

[0033] The above embodiments are intended to illustrate the present invention only and are not intended to limit the present invention. Persons skilled in the art may make various modifications or variations without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions are intended to fall within the scope of the present invention and are defined by the claims.

Claims

1. A coke oven track installation method, characterized in that The following steps are involved: a. Basic inspection and acceptance of embedded parts include the following steps: (1) Several embedded parts are pre-buried in the concrete structure below the coke oven track rails, and the embedded parts are inspected and accepted before concrete pouring; the embedded parts include a steel member with a T-shaped horizontal surface, a bottom plate, two vertical rods, and two embedded bolts (1); the horizontal surface of the T-shaped steel member (5) is supported by the lower side of the rail (2) through an adjustment pad (4); (2) The two vertical rods are arranged on both sides of the upright pole of the T-shaped steel member, the top ends of the vertical rods are connected to the horizontal surface of the T-shaped steel member, the vertical rods vertically pass through the bottom plate downward so that the bottom plate is located in the upper middle part of the vertical rods, and the lower middle part of the vertical rods is connected to the rectangular steel frame (11) by bolts; (3) The two embedded bolts (1) are respectively arranged on both sides of the track rails, and the embedded bolts (1) pass through the horizontal surface of the T-shaped steel member, and vertically downward so that the bottom end of the embedded bolts (1) is fixedly connected to the bottom plate (10) at the bottom; the debris on the upper horizontal surface of the T-shaped steel member is cleaned; b. Measurement and setting out, including the following steps: (1) Draw the track center line (9) on the horizontal surface of the T-shaped steel structure. The track center line must be drawn from the coke oven area coordinate control point; rail clamps (3) are provided on both sides of the track rail (2); (2) The embedded parts elevation is marked on the horizontal surface of the T-shaped steel member (5) set at every 12m on the track rail. The elevation mark is also set on the outside of the embedded bolt (1). The elevation must be derived from the coke oven area coordinate control point; c. Rail hoisting in place Place the rails on the horizontal surface of the T-shaped steel structure so that the center of the rails coincides with the center line of the track. Check the spacing between each set of rails and control the spacing deviation within ±2mm. Check the spacing between each rail and the center line of the coke oven and control the spacing deviation within ±2mm. d. Install the adjustment pad Use the adjustment pad to adjust the track elevation, and the elevation deviation should be controlled within ±2mm; e. Measurement calibration Check the deviation of the track centerline, check the track elevation deviation, 3. Check the deviation between the tracks and the deviation between the track and the coke oven centerline; f. Track fixing, welding and grinding After each section of rail has been measured and accepted, the embedded bolts are tightened to fix it. Aluminothermic welding is used. The interface should be polished after welding. The horizontal deviation of the interface should not exceed 1mm. g. Measurement, calibration and re-inspection: After polishing is completed, re-check the center line, elevation and spacing; h. Grouting The formwork is set up according to the design requirements in terms of height and width, and the grouting material is poured in sections of 8000mm to complete the installation of the coke oven track.

2. The coke oven rail installation method according to claim 1, characterized in that: In step a, the horizontality deviation of the upper surface of the T-shaped steel member is controlled within ±2 mm.

3. The coke oven rail installation method according to claim 1, characterized in that: In step b, the elevation deviation of the embedded bolt (1) is controlled within ±2 mm.

4. The coke oven rail installation method according to claim 1, characterized in that: The deviation of the track centerline should be controlled within ±1mm.

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