Large castable block furnace door lining brick mounting method

Abstract

The invention relates to the technical field of coking engineering, in particular to a large castable block furnace door lining brick mounting method which comprises the following steps: S1, discharging a position line of a castable block; s2, the castable blocks are arranged in place through a forklift and a castable block hoisting and transporting device; s3, a ceramic fiber blanket is laid on the castable blocks arranged in place, and the positions where bolts are installed are exposed; s4, adjusting the ceramic fiber blanket to enable the ceramic fiber blanket to be in close contact with the castable block; s5, the cutter edge web is installed on the arranged castable blocks, and the state of the ceramic fiber blanket is adjusted; and S6, a crane is used for installing the furnace door above the blade edge web according to the bolt holes, and the installation bolts are fastened. When the furnace door is installed, the state of the ceramic fiber blanket above the castable block can be observed, adjustment is conducted in time when dislocation of the ceramic fiber blanket is found, and the phenomenon of inter-leakage is reduced. The castable blocks are directly hoisted in place through the hoisting and transporting device, a worker does not need to adjust the castable blocks again through a crowbar, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coking engineering, and particularly to a method for installing large castable block furnace door lining bricks. Background Art

[0002] With the development of modern coke ovens towards large-scale, high-efficiency, green and environmental protection, the materials used for furnace door lining bricks have changed greatly. The traditional small cordierite furnace door lining bricks have been gradually replaced by large castable blocks, and the construction method of furnace door lining bricks has also changed. Patent CN109370616A introduces a method for installing castable blocks of coke oven furnace doors. The castable blocks are placed in position using a forklift and a lifting belt. After laying the ceramic fiber blanket, the fixed furnace door and knife edge are integrally installed on the castable blocks. This method has the following disadvantages: After the furnace door and the knife edge are connected and fixed, they are installed together. Due to their large volume and weight, it is impossible to observe the state of the ceramic fiber blanket above the castable block under the furnace door during installation. If the fiber blanket is misaligned, leakage will occur during production. Summary of the Invention

[0003] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a method for installing large castable block furnace door lining bricks.

[0004] A method for installing large castable block furnace door lining bricks provided by the present invention adopts the following technical solutions: 1. A method for installing large castable block furnace door lining bricks includes the following steps: S1. On a flat site, lay out the position lines of the castable blocks; S2. According to the position lines, use a forklift and a castable block hoisting and transportation device to arrange the castable blocks in place, and lay a ceramic fiber blanket between the castable blocks; S3. Lay a ceramic fiber blanket above the arranged castable blocks, and expose the positions of the installation bolts; S4. Adjust the ceramic fiber blanket so that it is in close contact with the castable blocks; S5. Install the knife edge web on the arranged castable blocks according to the bolt holes, adjust the state of the ceramic fiber blanket, and remove the misalignment and wrinkles generated during the installation process; S6. Use a crane to install the furnace door above the knife edge web according to the bolt holes, tighten the installation bolts, and complete the installation of the castable blocks.

[0005] Optionally, when laying the ceramic fiber blanket above the arranged castable blocks, gently tap the ceramic fiber blanket near the installation bolts with a wooden hammer to expose the installation bolts from the ceramic fiber blanket.

[0006] Optionally, wrap asbestos rope around the root of each installation bolt exposed from the ceramic fiber blanket.

[0007] Compared with the prior art, the present invention has the following technical effects: 1. By adopting the hoisting and transportation device for the furnace door castable block, the castable block can be quickly transferred and installed in place without using a crane, and no further adjustment is required. 2. Installing the lightweight knife-edge web first can not only protect the knife edge, but also visually observe the misalignment and wrinkling of the ceramic fiber blanket above the castable block, and timely adjustment can ensure the heat preservation effect of the ceramic fiber blanket. 3. Wrapping asbestos rope around the root of the bolt exposed by the ceramic fiber blanket above the castable block effectively solves the problems of smoke emission and bolt redness at the bolt holes during the production process. Description of the Drawings

[0008] Figure 1 is a schematic diagram of the hoisting and transportation device for the castable block in the present invention; Figure 2 is a schematic diagram of the installation of asbestos rope at the root of the installation bolt in the present invention; Figure 3 is a schematic diagram of the installation of the knife-edge web in the present invention; Figure 4 is a schematic diagram showing the knife-edge web and the castable block in the present invention; Figure 5 is a schematic diagram of the hoisting of the furnace door in the present invention.

[0009] Description of the reference numerals: 1. Hoisting and transportation device; 11. Fixed steel plate; 12. Opening; 13. Fixed nut; 14. Lifting lug; 15. Lifting belt; 2. Castable block; 3. Installation bolt; 4. Ceramic fiber blanket; 5. Asbestos rope; 6. Knife-edge web; 7. Furnace door. Detailed Description of the Invention

[0010] The following further describes the present invention in detail with reference to the attached Figure 1 - attached Figure 5 drawings.

[0011] Refer to Figures 1 - 5 , a hoisting and transportation device 1 for a large furnace door castable block includes a fixed steel plate 11 and a lifting lug 14. Two openings 12 are arranged at intervals on the fixed steel plate 11, and the openings 12 are for the installation bolts 3 cast on the castable block 2 to pass through. Each installation bolt 3 corresponds to a fixed nut 13, and a lifting lug 14 is welded on the fixed steel plate 11, and the lifting lug 14 is located between the two openings 12. Two fixed steel plates 11 are installed on the same castable block 2, and the two fixed steel plates 11 are connected by a lifting belt 15 through the lifting lug 14.

[0012] The embodiment of the present invention discloses a method for installing the lining brick of a large castable block furnace door, including the following steps: S1. On a flat site, lay out the position line of the castable block 2.

[0013] S2. According to the position line, use a forklift and the hoisting and transportation device 1 of the castable block 2 to arrange the castable blocks 2 in place, and lay a 10-mm-thick ceramic fiber blanket 4 between the castable blocks 2.

[0014] S3. Lay a layer of 10-mm-thick ceramic fiber blanket 4 above the arranged castable blocks 2, and gently tap the ceramic fiber blanket 4 near the mounting bolts 3 with a wooden hammer to expose the mounting bolts 3 from the ceramic fiber blanket 4.

[0015] S4. Adjust the ceramic fiber blanket 4 to make it in close contact with the castable block 2. Wrap 1 - 2 turns of single-strand asbestos rope 5 around the root of each mounting bolt 3 exposed from the ceramic fiber blanket 4.

[0016] S5. Install the knife-edge web 6 on the arranged castable blocks 2 according to the bolt holes, make the mounting bolts 3 pass through the bolt holes on the knife-edge web, and adjust the state of the ceramic fiber blanket 4 to remove the misalignment and wrinkles generated during the installation process.

[0017] S6. Use a crane to install the furnace door 7 above the knife-edge web 6 according to the bolt holes, tighten the mounting bolts 3, and complete the installation of the castable block 2.

[0018] The present invention has the following technical effects: 1. By adopting the hoisting and transportation device 1, the castable blocks 2 can be quickly transported and installed in place without using a crane, and no further adjustment is required. 2. Installing the lighter knife-edge web 6 first can not only protect the knife edge, but also visually observe the misalignment and wrinkles of the ceramic fiber blanket 4 above the castable blocks 2, and make timely adjustments to ensure the heat preservation effect of the ceramic fiber blanket 4. 3. Wrapping asbestos rope 5 around the bolt roots exposed from the ceramic fiber blanket 4 above the castable blocks 2 effectively solves the problems of smoke emission and bolt redness at the bolt holes during the production process.

[0019] The installation method of the large-sized castable coke oven furnace door lining brick of the present invention makes the installation of the large-sized castable furnace door convenient and fast, improves work efficiency, is conducive to quality control, reduces the construction period, and saves construction costs. The castable blocks are directly hoisted in place by the hoisting and transportation device, and workers do not need to use crowbars for further adjustment, which improves work efficiency.

[0020] The above are all the preferred embodiments of the present invention. The protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A method for installing refractory bricks for the furnace door of a large castable block, characterized in that: The steps include the following: S1. On a flat site, lay out the position lines of the castable blocks (2); S2. According to the position lines, use a forklift and the hoisting and transportation device (1) of the castable blocks (2) to arrange the castable blocks (2) in place, and lay ceramic fiber blankets (4) between the castable blocks (2); S3. Lay ceramic fiber blankets (4) above the castable blocks (2) arranged in place, and expose the positions of the mounting bolts (3); S4. Adjust the ceramic fiber blankets (4) so that the ceramic fiber blankets (4) are in close contact with the castable blocks (2); S5. Install the knife-edge webs (6) on the arranged castable blocks (2) according to the bolt holes, adjust the state of the ceramic fiber blankets (4), and remove the misalignment and wrinkles generated during the installation process; S6. Use a crane to install the furnace door (7) above the knife-edge webs (6) according to the bolt holes, tighten the mounting bolts (3), and complete the installation of the castable blocks (2).

2. The installation method of the large castable block furnace door lining brick according to claim 1, characterized in that: When laying the ceramic fiber blankets (4) above the castable blocks (2) arranged in place, gently tap the ceramic fiber blankets (4) near the mounting bolts (3) with a wooden hammer to expose the mounting bolts (3) from the ceramic fiber blankets (4).

3. The installation method of the large castable block furnace door lining brick according to claim 1 or 2, characterized in that: Wind asbestos ropes (5) around the roots of each mounting bolt (3) exposed from the ceramic fiber blankets (4).

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