A method for inspecting the width of a coke oven combustion chamber

Abstract

A method for inspecting the width of a coke oven combustion chamber is characterized by comprising the following steps: a. making a wire drawing mark plate according to the type of the coke oven, b. setting a machine-side wire drawing mark plate as a width inspection line for the combustion chamber machine side and setting a coke-side wire drawing mark plate as a width inspection line for the combustion chamber coke side, c. installing and fixing the machine-side wire drawing mark plate and the coke-side wire drawing mark plate respectively, d. setting an inspection line and conducting an inspection. The method for inspecting the width of a coke oven combustion chamber of the present invention has the advantages of novel and sophisticated arrangement of the wire drawing mark plate and the inspection line, safe and reliable engineering quality, and can inspect the width of any part of the combustion chamber from the "machine side" to the "coke side", thereby improving inspection accuracy and efficiency. At the same time, it can also determine whether the combustion chamber wall deviates from the center line, thereby accelerating the project progress and reducing the project cost.

Description

Technical Field

[0001] The invention relates to a method for inspecting the dimensions of an industrial furnace, in particular to a method for inspecting the width of a coke oven combustion chamber. Background Art

[0002] A coke oven is a large industrial furnace constructed of countless refractory bricks. It is the primary thermal equipment used to convert coal into coke. The coke oven body consists of five main parts, from bottom to top: the base platform, regenerator, chute, combustion chamber, and roof. The side with the coke pusher is generally called the "machine side," and the side with the coke blocker is called the "coke side." The space between the two combustion chambers is the "carbonization chamber," where coal is loaded and ultimately carbonized to form coke. To facilitate coke pushing, the combustion chamber on the "machine side" is wider than the "coke side," typically with a taper of about 50 mm.

[0003] Because the combustion chamber tapers approximately 50mm from the engine side to the focal plane side, the width of the combustion chamber wall varies from point to point. The traditional method for inspecting combustion chamber width involves calculating the width of a specific point using the designed width and length of the engine side, focal plane, and centerline, marking the area, and then measuring with a steel tape measure. This method is inefficient and lacks high accuracy.

[0004] Therefore, the known coke oven combustion chamber width dimension inspection method has the above-mentioned various inconveniences and problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a safe and reliable method for inspecting the width of a coke oven combustion chamber.

[0006] To achieve the above objectives, the technical solution of the present invention is:

[0007] A method for inspecting the width of a coke oven combustion chamber, comprising the following steps:

[0008] a. Make wire drawing plate according to the coke oven type

[0009] Provide two line marking plates, extend the center point of the line marking plates to both sides to mark the center lines of two adjacent combustion chambers, and determine the size of the distance between the center lines of the two adjacent combustion chambers according to the coke oven type;

[0010] b. Set the machine side wire mark plate as the combustion chamber machine side width inspection line, set the coke side wire mark plate as the combustion chamber coke side width inspection line

[0011] Make two wire drawing mark plates, one as the engine side wire drawing mark plate and the other as the coke side wire drawing mark plate; mark the engine side width line of the combustion chamber on both sides with the center line of the combustion chamber as the center, and then extend a certain length outward with the engine side width line of the combustion chamber as the baseline to make a marking line as the engine side width inspection line of the combustion chamber; mark the coke side width line of the combustion chamber on both sides with the center line of the combustion chamber as the center, and then extend a certain length outward with the coke side width line of the combustion chamber as the baseline to make a marking line as the coke side width inspection line of the combustion chamber;

[0012] c. Install and fix the machine side wire drawing mark plate and the coke side wire drawing mark plate respectively

[0013] Method for installing and fixing the machine side tie mark plate: align the two combustion chamber center lines of the machine side tie mark plate with the combustion chamber center lines of the two adjacent vertical wire rods, and align the upper surface of the machine side tie mark plate with the brick layer line on the two adjacent vertical wire rods. Then use two special clamps to fix the machine side tie mark plate to the two adjacent vertical wire rods. The installation and fixing method of the coke side tie mark plate is the same as that of the machine side tie mark plate.

[0014] d. Set up inspection lines and conduct inspections

[0015] Two inspection lines are set up and tightened and fixed on the two width inspection lines of the machine side wire drawing mark plate and the two width inspection lines of the coke side wire drawing mark plate respectively. Then a steel ruler is used to keep it perpendicular to the side wall of the combustion chamber, and the distance between the two side walls of the combustion chamber and the inspection line is checked below the inspection line; when the distance between the side wall of the combustion chamber and the inspection line is 20±1.5mm, the combustion chamber width is qualified; when the distance between the side wall of the combustion chamber and the inspection line is greater than 20mm, the combustion chamber width is a negative tolerance; when the distance between the side wall of the combustion chamber and the nylon line is less than 20mm, the combustion chamber width is a positive tolerance; if one wall of the combustion chamber "coke side" is a positive tolerance, and the other wall of the combustion chamber "coke side" is a negative tolerance, it can be judged that the center of the combustion chamber "coke side" wall deviates to one side.

[0016] The method for inspecting the width dimension of the coke oven combustion chamber of the present invention can be further implemented by adopting the following technical measures.

[0017] In the aforementioned method, the vertical wire rod is a furnace column, or a wooden square of 6000mm×200mm×100mm.

[0018] In the aforementioned method, the inspection line is a φ0.8mm nylon line.

[0019] The aforementioned method, wherein the pulling force of the inspection line is not less than 40N.

[0020] In the aforementioned method, the side walls of the combustion chamber are divided into 5-7 points for inspection.

[0021] After adopting the above technical solution, the coke oven combustion chamber width dimension inspection method of the present invention has the following advantages:

[0022] 1. The setting of the wire drawing mark plate and inspection line is novel and exquisite;

[0023] 2. The project quality is safe and reliable. The width of any part of the combustion chamber from the "machine side" to the "coke side" can be checked to improve the inspection accuracy and efficiency. At the same time, it can also determine whether the combustion chamber wall deviates from the center line;

[0024] 3. Speed ​​up the project progress and reduce the project cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the arrangement of a wire marking plate according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram showing that the center line of the combustion chamber on the furnace column is consistent with the brick layer line in an embodiment of the present invention.

[0027] In the figure: 1 machine side wire drawing mark plate, 2 coke side wire drawing mark plate, 3 combustion chamber center line, 4 furnace column, 5 combustion chamber machine side width line, 6 combustion chamber coke side width line, 7 combustion chamber machine side width inspection line, 8 combustion chamber coke side width inspection line, 9 nylon line, 10 steel ruler, 11 coke oven combustion chamber, 12 coke oven carbonization chamber, 13 combustion chamber center line on furnace column, 14 brick layer line on furnace column. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the embodiments and the accompanying drawings.

[0029] Example 1

[0030] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the arrangement of the wire marking plate according to an embodiment of the present invention. Figure 2 This is a schematic diagram showing that the center line of the combustion chamber on the furnace column is consistent with the brick layer line in an embodiment of the present invention.

[0031] The method for inspecting the width of a coke oven combustion chamber of the present invention comprises the following steps:

[0032] 1) Prepare two wire markers, measuring 2500mm x 100mm x 50mm. Extend the center points of the wire markers to both sides to mark the center lines of two adjacent combustion chambers. The distance between them is B1. The size of B1 is determined by the coke oven type and is usually 1300mm, 1350mm, 1400mm, 1500mm, or 1650mm.

[0033] 2) There are two gauge marking plates: one for the engine side and one for the coke side. On the engine side gauge marking plate 1, mark the engine side width line of the combustion chamber on both sides, centered on the combustion chamber centerline. Then, extend 20mm outward from the engine side width line 5 as a baseline to form a marking line, which serves as the engine side width inspection line 7. On the coke side gauge marking plate 2, mark the coke side width line 6 on both sides, centered on the combustion chamber centerline 3. Then, extend 20mm outward from the coke side width line as a baseline to form a marking line, which serves as the coke side width inspection line 8.

[0034] 3) Install and secure the machine-side and coke-side tie-line marking plates. Align the two combustion chamber centerlines of the machine-side tie-line marking plate with the combustion chamber centerlines 13 of the two adjacent furnace columns, and align the upper surface of the machine-side tie-line marking plate with the brick layer lines 14 of the two adjacent furnace columns. Then, use two special clamps to secure the machine-side tie-line marking plate to the two adjacent furnace columns 4. The coke-side tie-line marking plate installation procedure is the same as the machine-side tie-line marking plate.

[0035] 4) Use two 0.8mm diameter nylon inspection lines 9 to tighten and secure them to the two width inspection lines on the machine-side and coke-side gauges, respectively. The tension should be no less than 40N. Then, using a steel ruler 10 held perpendicular to the combustion chamber walls, check the distance between the lines and the lines on surfaces a and c of the two combustion chamber walls from below. Generally, evenly divide the entire length of the combustion chamber wall into five or seven locations for inspection.

[0036] 5) The permissible deviation for the coke oven combustion chamber wall width is ±3mm. Therefore, the permissible width of the coke oven combustion chamber 11 wall is ±1.5mm on one side. This means that the combustion chamber width is acceptable when the gap between the combustion chamber side wall and the nylon line is 20±1.5mm. The coke oven carbonization chamber 12 is located between the two coke oven combustion chambers 11. If the gap between the combustion chamber side wall and the nylon line is greater than 20mm, the combustion chamber width is considered to have a negative tolerance; if the gap between the combustion chamber side wall and the nylon line is less than 20mm, the combustion chamber width is considered to have a positive tolerance.

[0037] 6) If the wall on the "focus side" of the combustion chamber has a positive tolerance, while the wall on the "focus side" of the combustion chamber has a negative tolerance, it can be determined that the center of the wall on the "focus side" of the combustion chamber deviates from the a side.

[0038] The present invention has substantial characteristics and significant technological progress. The coke oven combustion chamber width dimension inspection method of the present invention can inspect the width of any part of the combustion chamber from the "machine side" to the "coke side", improve the inspection accuracy and efficiency, and at the same time can also determine whether the combustion chamber wall deviates from the center line.

[0039] The coke oven combustion chamber width dimension inspection method of the present invention has been applied in the coke oven construction of Baosteel Guangzhou Zhanjiang Iron and Steel Co., Ltd., with obvious effect, and has been recognized by relevant departments and units.

[0040] 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 method for inspecting the width of a coke oven combustion chamber, characterized in that The following steps are involved: a. Make wire drawing plate according to the coke oven type Provide two line marking plates, extend the center point of the line marking plates to both sides to mark the center lines of two adjacent combustion chambers, and determine the size of the distance between the center lines of the two adjacent combustion chambers according to the coke oven type; b. Set the machine side wire gauge as the combustion chamber machine side width inspection line (7), set the coke side wire gauge as the combustion chamber coke side width inspection line (8) The two wire drawing marking plates are used as a machine side wire drawing marking plate and a coke side wire drawing marking plate; a combustion chamber machine side width line (5) is marked on the machine side wire drawing marking plate with the combustion chamber center line as the center, and a marking line is extended outwards for a certain length with the combustion chamber machine side width line as the baseline, as a combustion chamber machine side width inspection line; a combustion chamber coke side width line (6) is marked on the coke side wire drawing marking plate with the combustion chamber center line (3) as the center, and a marking line is extended outwards for a certain length with the combustion chamber coke side width line as the baseline, as a combustion chamber coke side width inspection line; c. Install and fix the machine side wire drawing mark plate (1) and the focal side wire drawing mark plate (2) respectively. Method for installing and fixing the machine side tie mark plate: align the two combustion chamber center lines of the machine side tie mark plate with the combustion chamber center lines of the two adjacent vertical wire rods, and align the upper surface of the machine side tie mark plate with the brick layer line on the two adjacent vertical wire rods. Then use two special clamps to fix the machine side tie mark plate to the two adjacent vertical wire rods. The installation and fixing method of the coke side tie mark plate is the same as that of the machine side tie mark plate. d. Set up inspection lines and conduct inspections Two inspection lines are set and tightened and fixed on the two width inspection lines of the machine side wire drawing mark plate and the two width inspection lines of the focal side wire drawing mark plate, respectively. The inspection lines are φ0.8mm nylon lines (9). Then, a steel ruler is used to keep the two side walls of the combustion chamber perpendicular to the side wall. The distance between the two side walls of the combustion chamber and the inspection lines is checked below the inspection lines. When the distance between the side walls of the combustion chamber and the inspection lines is 20±1.5mm, the combustion chamber width is qualified. When the distance between the side walls of the combustion chamber and the inspection lines is greater than 20mm, the combustion chamber width is a negative tolerance. When the distance between the side walls of the combustion chamber and the nylon lines is less than 20mm, the combustion chamber width is a positive tolerance. If the "focal side" wall of the combustion chamber is all within the positive tolerance, and the other side wall of the "focal side" of the combustion chamber is all within the negative tolerance, it can be judged that the center of the "focal side" wall of the combustion chamber deviates to one side.

2. The method for inspecting the width of a coke oven combustion chamber according to claim 1, wherein: The vertical wire rod is a furnace column, or a wooden square with a size of 6000mm×200mm×100mm.

3. The method for inspecting the width of a coke oven combustion chamber according to claim 1, wherein: The pulling force of the inspection line is not less than 40N.

4. The method for inspecting the width of a coke oven combustion chamber according to claim 1, wherein: The side walls of the combustion chamber are divided into 5-7 points for inspection.

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