Auxiliary tool for building coke oven tubular bricks and building method

Abstract

The invention relates to the technical field of coke oven masonry engineering, in particular to an auxiliary tool for coke oven tubular brick masonry and a masonry method.The auxiliary tool comprises a core tube matched with a tubular brick channel; the pipe caps block the two ends of the core pipe respectively, and a first through hole is formed in the center; a second through hole is formed in the center of the blocking piece; the pull rod reinforcing steel bar penetrates through the two blocking pieces, the two pipe caps and the core pipe through the first through hole and the second through hole; the rubber scraper penetrates through the pull rod steel bar and is positioned below the core tube, and the outer diameter of the rubber scraper is the same as the inner diameter of the tubular brick channel; the positioning nuts are in threaded connection with the pull rod reinforcing steel bar, the upper side and the lower side of each rubber scraper are respectively provided with one rubber scraper so as to fix the rubber scrapers, and the opposite sides of the two blocking pieces are respectively provided with one blocking piece so as to fix the blocking pieces; through the integrally designed cleaning tool and the standardized masonry method, perpendicularity control and inner wall cleaning are synchronously completed in the coke oven tubular brick masonry process; the core tube can provide accurate guiding, and it is ensured that the tubular bricks are accurately aligned.

Description

Technical Field

[0001] The invention relates to the technical field of coke oven masonry engineering, in particular to an auxiliary tool and a masonry method for masonry of coke oven pipe bricks. Background Art

[0002] As a key equipment for producing coke in the modern steel industry, the stability and efficiency of the coke oven's operation are directly related to the quality and cost of steel production. In the structural system of the coke oven, the gas pipe brick plays a vital role. It builds a channel for gas transportation, ensuring that the gas can be safely and stably transmitted to the designated location under complex working conditions such as high temperature and high pressure, providing continuous energy support for the coking process.

[0003] During the construction of gas pipe bricks, ensuring their verticality is a crucial task. Any deviation from this verticality can severely disrupt the flow of gas within the pipe. Furthermore, during construction, extruded slurry can easily enter the perforations of the bricks, causing blockage. Blockage reduces the cross-sectional area for gas flow, leading not only to insufficient gas flow and disruption to the coking process, but also to potential safety hazards caused by excessive local gas pressure.

[0004] CN215627775U introduces an auxiliary device for the masonry of coke oven gas pipe bricks, which is provided with a protective sleeve. The size of the protective sleeve is adapted to the inner diameter of the pipe brick hole, which can effectively ensure the verticality of the gas pipe brick. By arranging a blocking rod with a blocking ring inside the protective sleeve, the residual materials such as fire mud and mortar in the brick hole can be effectively cleaned during the process of withdrawing the blocking ring from the protective sleeve. However, all actions of the device are carried out inside the protective sleeve, and the inner wall of the gas pipe brick outside the sleeve cannot be cleaned. In addition, the structure is complex and the cost is high.

[0005] CN116574523A introduces a method for protecting and cleaning the pipe brick holes in coke oven masonry. A cleaning and protective device is made of a pull rod made of steel bars and connected to a rubber scraper. During the masonry process, the inner wall of the gas pipe brick can be effectively cleaned by pulling out the cleaning and protective device. However, due to uneven force on the pull rod and uneven distribution of friction between the rubber scraper and the inner wall of the gas pipe brick, the protective device may deviate from the vertical trajectory during the rising process, affecting the verticality of the gas pipe brick. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the purpose of the present invention is to provide an auxiliary tool and a laying method for coke oven tube bricks, which can prevent the upper and lower layers of coke oven tube bricks from being misaligned during laying, and can also clear and clean the inner wall of the tube bricks at one time.

[0007] The technical solution adopted by the present invention to solve its technical problem is: An auxiliary tool for coke oven pipe brick masonry, comprising a core pipe adapted to a pipe brick channel; a pipe cap, respectively sealing both ends of the core pipe, with a first through hole provided in the center; a blocking piece, provided on the outside of the pipe cap, with a diameter less than or equal to the outer diameter of the pipe cap, with a second through hole provided in the center; a tie rod reinforcement, passing through the two blocking pieces, the two pipe caps and the core pipe through the first through hole and the second through hole; a rubber scraper, passed through the tie rod reinforcement, located below the core pipe, with an outer diameter identical to the inner diameter of the pipe brick channel; a positioning nut, threadedly connected to the tie rod reinforcement, with one provided on each of the upper and lower sides of the rubber scraper for fixing the rubber scraper, and one provided on each of the two opposing sides of the blocking pieces for fixing the blocking pieces.

[0008] Preferably, a further technical solution of the present invention is: Preferably, the length of the core tube is 1.4-1.8 times the height of the tube brick.

[0009] Preferably, the core tube is 2 mm smaller than the diameter of the tube brick channel.

[0010] Preferably, a handle is provided at the upper end of the tie rod reinforcement, the handle is a circular ring structure, and the diameter of the handle is smaller than the diameter of the pipe brick channel.

[0011] Preferably, the rubber scraper is spaced 25-35 mm from the lower end of the core tube.

[0012] The present invention also provides a coke oven tube brick laying method, which is performed using an auxiliary tool for coke oven tube brick laying. The specific steps are as follows: S1: Insert the auxiliary tool into the N layers of tube bricks that have been completed. The core tube insertion depth is greater than or equal to 30mm. S2: Apply mortar to the brick groove on the top surface of the N-layer pipe bricks, and apply mortar to the bottom of the N+1-layer pipe bricks to be laid, so that the N+1-layer pipe bricks pass through the auxiliary tools and are combined with the N-layer pipe bricks; S3: Adjust the center distance between adjacent pipe bricks and make the surface flatness of the pipe bricks meet the specification requirements. Support the N+1 layer of pipe bricks with one hand and lift the core pipe vertically upward with the other hand. During the lifting process of the core pipe, the rubber scraper rises with the cleaning device to clean the residual mud on the inner wall of the pipe bricks.

[0013] Compared with the prior art, the present invention adopting the above technical solution has the following outstanding features: This invention utilizes an integrated cleaning tool and standardized masonry method to simultaneously control verticality and clean the inner wall during coke oven tube brick laying. The core tube provides precise guidance, ensuring accurate tube brick alignment; rubber scrapers, combined with the lifting action of the tie rods and rebar, effectively remove slurry from the inner wall. This method, through a standardized "insert, apply slurry, and lift" process, simultaneously addresses the two major challenges of tube brick misalignment and slurry clogging in traditional construction, significantly improving laying efficiency while reducing manual intervention and rework. It is particularly well-suited for the efficient construction needs of coke ovens. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of an auxiliary tool in an embodiment of the present invention; Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle; Figure 3 It is a structural diagram of the auxiliary tool in the embodiment of the present invention when in use.

[0015] Explanation of the accompanying reference numerals: 1. core tube; 2. tie rod reinforcement; 3. pipe cap; 4. blocking plate; 5. positioning nut; 6. rubber scraper; 7. handle; 8. gas pipe brick channel; 9. N-layer pipe brick; 10. pipe brick joint; 11. N+1-layer pipe brick; 12. main wall of the heat storage chamber. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with specific embodiments. The purpose is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0017] like Figures 1 to 3 As shown, this embodiment provides an auxiliary tool for coke oven tube brick masonry, comprising a core tube 1 adapted to the tube brick channel 8; a tube cap 3, respectively sealed at both ends of the core tube 1, with a first through hole provided in the center; a blocking piece 4, provided on the outside of the tube cap 3, with a diameter less than or equal to the outer diameter of the tube cap 3, and a second through hole provided in the center; a tie rod steel bar 2, passing through the two blocking pieces 4, the two tube caps 3 and the core tube 1 through the first through hole and the second through hole; a rubber scraper 6, passed through the tie rod steel bar 2, located below the core tube 1, with an outer diameter the same as the inner diameter of the tube brick channel 8; a positioning nut 5, threadedly connected to the tie rod steel bar 2, with one on each side of the rubber scraper 6 for fixing the rubber scraper 6, and one on each side of the two blocking pieces 4 opposite to each other for fixing the blocking pieces 4. The core tube 1 is 2mm smaller than the diameter of the brick passage 8. This 2mm gap prevents friction from affecting the lifting operation and ensures that the core tube 1 is centered and maintains verticality. A handle 7 is provided at the top of the tie rod 2. The handle 7 is a circular ring with a diameter smaller than the brick passage 8. A rubber scraper 6 is 25-35mm away from the bottom of the core tube 1; this gap serves as a temporary slurry storage area.

[0018] The core tube 1 is 1.4-1.8 times the height of the tube brick. In this embodiment, the core tube 1 is 1.5 times the height of the tube brick, providing precise guidance for tube brick laying and ensuring sufficient positioning reference when penetrating the upper and lower layers of tube bricks. Furthermore, the extra-long design prevents displacement of the upper tube bricks during laying, reducing the risk of misalignment.

[0019] The present invention also provides a coke oven tube brick laying method, which is performed using an auxiliary tool for coke oven tube brick laying. The specific steps are as follows: S1: Insert the auxiliary tool into the N layers of pipe bricks 9 that have been completed. Figure 3 , the outside of the N-layer pipe brick 9 is the main wall 12 of the heat storage chamber, and the core pipe 1 is inserted to a depth greater than or equal to 30 mm; S2: Apply mortar to the brick groove on the top surface of the N-layer pipe brick 9, and apply mortar to the bottom of the N+1-layer pipe brick 11 to be laid, so that the N+1-layer pipe brick 11 passes through the auxiliary tool and is combined with the N-layer pipe brick 9; S3: Adjust the center distance between adjacent pipe bricks and make the surface flatness of the pipe bricks meet the specification requirements. Support the N+1 layer of pipe bricks 11 with one hand and lift the core pipe 1 vertically upward with the other hand. During the lifting process of the core pipe 1, the rubber scraper 6 rises with the cleaning device to clean the residual mud on the inner wall of the pipe brick and the excess mud on the brick joints 10.

[0020] This invention achieves the following beneficial effects: Improved efficiency: The combination of tools and methods solves the time-consuming issue of the traditional step-by-step operation (positioning first, then cleaning). Controllable quality: Construction accuracy is ensured through the quantitative design of structural parameters and method steps. Cost savings: Rework and manual intervention are reduced, meeting the requirements for efficient coke oven construction.

[0021] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent changes made by using the contents of the present invention description and the drawings are included in the scope of the present invention.

Claims

1. An auxiliary tool for coke oven tube brick laying, characterized by: It includes a core tube (1) adapted to the tube brick channel (8); The tube caps (3) are respectively sealed at both ends of the core tube (1), and a first through hole is provided at the center; A blocking piece (4) is arranged outside the tube cap (3), has a diameter less than or equal to the outer diameter of the tube cap (3), and is provided with a second through hole at its center; The tie rod steel bar (2) passes through the first through hole and the second through hole, and penetrates the two blocking plates (4), the two pipe caps (3) and the core pipe (1); A rubber scraper (6) is passed through the tie rod reinforcement (2) and is located below the core tube (1), and has an outer diameter that is the same as the inner diameter of the tube brick channel (8); A positioning nut (5) is threadedly connected to the tie rod reinforcement (2), one is provided on each of the upper and lower sides of the rubber scraper (6) to fix the rubber scraper (6), and one is provided on each of the two blocking pieces (4) on the opposite sides to fix the blocking pieces (4).

2. The auxiliary tool for coke oven tube brick laying according to claim 1, characterized in that: The length of the core tube (1) is 1.4-1.8 times the height of the tube brick.

3. The auxiliary tool for coke oven tube brick laying according to claim 1, characterized in that: The core tube (1) is 2 mm smaller than the diameter of the tube brick channel (8).

4. The auxiliary tool for laying coke oven tube bricks according to claim 1, characterized in that: A handle (7) is provided at the upper end of the tie rod reinforcement (2). The handle (7) is a circular ring structure, and the diameter of the handle (7) is smaller than the diameter of the pipe brick channel (8).

5. The auxiliary tool for coke oven tube brick laying according to claim 1, characterized in that: The rubber scraper (6) is spaced 25-35 mm from the lower end of the core tube (1).

6. A coke oven tube brick laying method, characterized in that: The coke oven tube brick masonry auxiliary tool according to any one of claims 1 to 5 is used, and the specific steps are as follows: S1: insert the auxiliary tool into the N layers of tube bricks (9) that have been completed, and the insertion depth of the core tube (1) is greater than or equal to 30 mm; S2: Apply mortar to the brick groove on the top surface of the N-layer pipe brick (9), and apply mortar to the bottom of the N+1-layer pipe brick (11) to be laid, so that the N+1-layer pipe brick (11) passes through the auxiliary tool and is combined with the N-layer pipe brick (9); S3: Adjust the center distance between adjacent pipe bricks and make the surface flatness of the pipe bricks meet the specification requirements. Support the N+1 layer of pipe bricks (11) with one hand and lift the core pipe (1) vertically upward with the other hand. During the lifting process of the core pipe (1), the rubber scraper (6) rises with the cleaning device to clean the residual mud on the inner wall of the pipe bricks.

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