A cleaning method for the construction of the drying tunnel on the end wall of a coke oven.

Abstract

A cleaning method for constructing the drying channel of a coke oven end wall is characterized by the following steps: a) setting up the drying channel mold and making cleaning tools; b) constructing and cleaning the vertical drying channel; c) using the cleaning tools and cleaning the horizontal drying channel. This cleaning method for constructing the drying channel of a coke oven end wall has the advantages of simple cleaning tool structure, convenient manufacturing and use, quick and easy cleaning of the mortar in the channel, thorough cleaning, no blockage in the drying channel, saving construction time, reducing labor intensity, and ensuring the drying channel is clean and unobstructed.

Description

Technical Field

[0001] This invention relates to a method for cleaning oven drying passages, specifically a method for cleaning oven drying passages during the construction of coke oven end walls. Background Technology

[0002] A coke oven is a large industrial furnace constructed from countless refractory bricks, serving as the primary thermal equipment for converting coal into coke. The coke oven body has end walls at both ends. At the bottom of each end wall of the combustion chamber, a horizontal drying channel is provided. From the horizontal drying channel to the top surface of the coke oven, there are at least 12 vertical drying channels, which connect with the horizontal channels to facilitate the removal of moisture from the end walls. The horizontal drying channels run transversely through both end walls of the coke oven, typically about 18 meters long, with a cross-section generally 125 mm wide and 270 mm high. The vertical drying channels are generally over 8 meters high, with a typical square cross-section of 60 mm × 60 mm.

[0003] The vertical oven has many channels, and a lot of mortar falls into the horizontal oven channels during construction. If it is not cleaned up in time, the fallen mortar will easily accumulate and solidify, eventually blocking the oven channels and affecting the oven drying process.

[0004] In the past, the method for cleaning the oven passage was to use steel pipes or bamboo poles longer than 8 meters to make rakes to remove the mortar. Because the steel pipes or bamboo poles were too long, the space on the construction site was limited, making them very inconvenient to use and labor-intensive.

[0005] Therefore, the known methods for cleaning oven passages have the aforementioned inconveniences and problems. Summary of the Invention

[0006] The purpose of this invention is to provide a safe and reliable cleaning method for the construction of the drying channel of the coke oven end wall.

[0007] To achieve the above objectives, the technical solution of the present invention is:

[0008] A cleaning method for the construction of the drying channel of a coke oven end wall, characterized by the following steps:

[0009] a. Setting up oven passage molds and making cleaning tools

[0010] The vertical oven passage cleaning tool is made of wooden strips and nails to create a square-cross-section mold, and the cleaning tool is designed to match the square-cross-section oven passage.

[0011] The cleaning tool for the horizontal oven passage includes a steel pipe and two square steel plates; the center of one side of each of the two square steel plates is fixedly welded to one end of the steel pipe, and the center of the other side of each of the two square steel plates is fixedly welded to a ring, with ropes installed inside the rings;

[0012] b. Construction and cleaning of vertical oven passageways

[0013] When constructing the vertical oven passage, place the square mold vertically and build refractory bricks around the mold. After building several layers of refractory bricks, pull the square mold back and forth to clean the mortar in the passage, lift the mold, and build the upper masonry. Repeat this process.

[0014] c. Instructions for using and cleaning tools for horizontal oven passageways

[0015] Before the over-the-top bricks of the horizontal oven passage are laid, place the cleaning tool for the horizontal oven passage in the middle of the horizontal oven passage, and straighten the two ropes of the cleaning tool to extend to both ends of the horizontal oven passage.

[0016] During the construction of the vertical oven drying tunnel, mortar will fall into the horizontal oven drying tunnel. The horizontal oven drying tunnel needs to be cleaned regularly. Two people are positioned at each end of the horizontal oven drying tunnel. One person pulls a rope while the other person releases the rope to prevent it from getting stuck. When the cleaning tool for the horizontal oven drying tunnel is pulled to the end of the tunnel, the mortar on one side of the tunnel has been cleared. Then, the person at the other end starts pulling the rope while the person at the first end releases the rope, pulling the cleaning tool to the other end of the tunnel to clear the mortar on the other side. This process is repeated twice.

[0017] The cleaning method for the coke oven end wall drying channel of the present invention can be further implemented by the following technical measures.

[0018] The aforementioned method involves using 400mm wooden strips and nails to create a mold with a square cross-section of 60mm x 60mm.

[0019] In the aforementioned method, the two square steel plates of the horizontal oven passage cleaning tool are arranged in parallel, and the square steel plates are perpendicular to the steel pipe.

[0020] In the aforementioned method, the thickness of the square steel plate of the horizontal oven channel cleaning tool is ≥10mm.

[0021] In the aforementioned method, the diameter of the steel pipe of the horizontal oven channel cleaning tool is ≥48mm.

[0022] In the aforementioned method, the rope length of the horizontal oven passage cleaning tool is ≥9000mm.

[0023] After adopting the above technical solution, the cleaning method for constructing the coke oven end wall drying channel of the present invention has the following advantages:

[0024] 1. The cleaning tools have a simple structure and are easy to make and use;

[0025] 2. It can quickly and easily clean the mortar in the channel, leaving it very clean and preventing blockages in the oven channel;

[0026] 3. Saves construction time, reduces labor intensity, and ensures that the oven drying passage is clean and unobstructed. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the cleaning tool structure according to an embodiment of the present invention.

[0028] In the picture: 1. Rope, 2. Ring, 3. Square steel plate, 4. Steel pipe. Detailed Implementation

[0029] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0030] Example 1

[0031] The cleaning method for constructing the oven drying passage of the coke oven end wall according to the present invention includes the following steps:

[0032] 1. Making cleaning tools.

[0033] Figure 1 This is a schematic diagram of the horizontal oven channel cleaning tool according to an embodiment of the present invention. The vertical oven channel is constructed using 400mm long wooden strips and nails to create a mold with a square cross-section of 60mm × 60mm.

[0034] The cleaning tool for the horizontal oven passage consists of two square steel plates (3) welded to both ends of a 300mm long steel pipe (4). The square steel plates are 10mm thick and 110mm long. The steel pipe has a diameter of φ48.3mm. A circular ring (2) made of φ5mm steel bar is welded to the other side of each square steel plate. A rope (1) longer than 9 meters and approximately φ8mm in diameter is attached to each ring.

[0035] 2. When constructing the vertical furnace passage, place the square mold vertically, and then lay the refractory bricks around it tightly against the mold. After laying 4-5 layers of refractory bricks, pull the square mold back and forth twice to clean the mortar in the passage, and then lift the square mold to start laying the upper masonry again, repeating this process.

[0036] 3. Instructions for using and cleaning tools for horizontal oven passageways

[0037] Before the over-the-top bricks of the horizontal oven passage are laid, place the cleaning tool for the horizontal oven passage in the middle of the horizontal oven passage, and straighten the two ropes of the cleaning tool to extend to both ends of the horizontal oven passage.

[0038] During the construction of the vertical oven drying tunnel, mortar will fall into the horizontal oven drying tunnel. The horizontal oven drying tunnel needs to be cleaned regularly. Two people are positioned at each end of the horizontal oven drying tunnel. One person pulls a rope while the other person releases the rope to prevent it from getting stuck. When the cleaning tool for the horizontal oven drying tunnel is pulled to the end of the tunnel, the mortar on one side of the tunnel has been cleared. Then, the person at the other end starts pulling the rope while the person at the first end releases the rope, pulling the cleaning tool to the other end of the tunnel to clear the mortar on the other side. This process is repeated twice.

[0039] This invention possesses substantial features and significant technological advancements. The cleaning method for the coke oven end wall drying channel during construction is simple and quick, effectively cleaning the mortar within the channel and preventing blockages. Compared to existing methods, it is simpler, more convenient, saves time, reduces labor intensity, and ensures a clean and unobstructed drying channel.

[0040] The cleaning method for the coke oven end wall drying channel of the present invention has been applied in the coke oven construction of Baosteel Guangdong Zhanjiang Iron & Steel Co., Ltd., with significant results, and has been affirmed by relevant departments and units.

[0041] The above embodiments are for illustrative purposes only and are not intended to limit the invention. Those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention. Therefore, all equivalent technical solutions should also fall within the scope of this invention and are defined by the claims.

Claims

1. A cleaning method for the construction of the drying channel of a coke oven end wall, characterized in that... Includes the following steps: a. Setting up oven passage molds and making cleaning tools The vertical oven passage cleaning tool is made of wooden strips and nails to create a square-cross-section mold, and the cleaning tool is designed to match the square-cross-section oven passage. The cleaning tool for the horizontal oven passage includes a steel pipe and two square steel plates; the center of one side of each of the two square steel plates is fixedly welded to one end of the steel pipe, and the center of the other side of each of the two square steel plates is fixedly welded to a ring, with ropes on the rings; b. Construction and cleaning of vertical oven passageways When constructing the vertical oven passage, a square mold is placed vertically, and refractory bricks are laid around the mold. After laying several layers of refractory bricks, the square mold is pulled back and forth to clean the mortar in the passage. The mold is then lifted, and the upper masonry is laid again. This process is repeated. c. Instructions for using and cleaning tools for horizontal oven passageways Before the over-the-top bricks of the horizontal oven passage are laid, place the cleaning tool for the horizontal oven passage in the middle of the horizontal oven passage, and straighten the two ropes of the cleaning tool to extend to both ends of the horizontal oven passage. During the construction of the vertical oven drying tunnel, mortar will fall into the horizontal oven drying tunnel. The horizontal oven drying tunnel needs to be cleaned regularly. Two people are positioned at each end of the horizontal oven drying tunnel. One person pulls a rope while the other person releases the rope to prevent it from getting stuck. When the cleaning tool for the horizontal oven drying tunnel is pulled to the end of the tunnel, the mortar on one side of the tunnel has been cleared. Then, the person at the other end starts pulling the rope while the person at the first end releases the rope, pulling the cleaning tool to the other end of the tunnel to clear the mortar on the other side. This process is repeated twice.

2. The cleaning method for constructing the coke oven end wall drying channel as described in claim 1, characterized in that, The cleaning tool for the vertical oven passage is a mold with a cross-section of 60mm × 60mm made of 400mm wooden strips and nails.

3. The cleaning method for constructing the coke oven end wall drying channel as described in claim 1, characterized in that, The two square steel plates of the horizontal oven channel cleaning tool are arranged in parallel, and the square steel plates are perpendicular to the steel pipe.

4. The cleaning method for constructing the coke oven end wall drying passage as described in claim 1, characterized in that, The thickness of the square steel plate of the horizontal oven channel cleaning tool is ≥10mm.

5. The cleaning method for constructing the coke oven end wall drying passage as described in claim 1, characterized in that, The diameter of the steel pipe in the horizontal oven channel cleaning tool is ≥48mm.

6. The cleaning method for constructing the coke oven end wall drying channel as described in claim 1, characterized in that, The rope length of the horizontal oven passage cleaning tool is ≥9000mm.

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