Flame path wall off-line masonry system
By prefabing the firewall outside the roasting furnace and placing it in the construction area using a lifting system, the problems of low masonry efficiency and long-drying refractory mud are solved, and an efficient and safe firewall masonry process is achieved.
Patent Information
- Application Number
- CN202411884358.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-03-14
AI Technical Summary
The existing firewall walls of roasting furnaces are prone to deformation, sinking, bending and damage after long-term operation, resulting in low masonry efficiency, high labor intensity, and long drying time of refractory mud, resulting in short life of firewall walls.
The firewall offline masonry system is adopted, and the firewall wall is prefabricated outside the construction area by setting up a platform structure and lifting system, and placed in the construction area through the lifting system to reduce the need for workers to enter a high-temperature environment.
It improves the work efficiency of firewall wall masonry, reduces the labor intensity of workers, and avoids the problem of low life of firewall walls caused by the injected firewall before the firewall mud is fully dried.
Smart Images
Figure CN119617891A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of roasting furnace technology, and in particular to an offline construction system for fire channel walls. Background Art
[0002] Open-type calcining furnaces are used for the calcination processes of prebaked anodes, cathodes, and electrodes, and their operation is intermittent. Each furnace chamber undergoes preheating, heating, and cooling stages before routine maintenance. After long-term operation, the fire channel walls of the calcining furnace deform, including sinking, bending, and damage, requiring reconstruction. The calcining furnace is a high-temperature kiln with a slow cooling rate, and workers need to enter the furnace for construction. In summer, the furnace bottom temperature can reach over 40°C, making the construction environment harsh. Furthermore, the furnace's material hopper is 5-6 meters deep and 0.8 meters wide, with limited working space at the bottom. Simultaneously, the need to transport the fire channel wall bricks further narrows the working space. These factors result in low efficiency and high labor intensity in fire channel wall construction. Moreover, because the refractory mortar requires a long drying time, it is often heated before it is fully dry to expedite production after construction. This leads to a short lifespan for the reconstructed fire channel walls, lasting only 2-4 years, after which deformation and other problems require further reconstruction. Summary of the Invention
[0003] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an offline fire wall construction system. By setting up a platform structure and a hoisting system, the fire wall can be prefabricated outside the construction area using the platform structure, and then the prefabricated fire wall can be placed in the construction area using the hoisting system, thereby improving work efficiency and reducing the labor intensity of workers.
[0004] To achieve the above objectives, the main technical solutions adopted by the present invention include: An offline fire channel wall construction system includes a platform structure and a hoisting system. The platform structure includes a construction platform, columns, and a lifting device. The construction platform has a U-shaped structure with a hollow central area for constructing prefabricated fire channel walls. The columns are connected to the four corners of the bottom of the construction platform to support it. The top of each column is equipped with a lifting device for controlling the vertical movement of the construction platform along the columns. The hoisting system moves the prefabricated fire channel walls into the construction area.
[0005] By setting up a platform structure and hoisting system, the fire channel wall can be prefabricated outside the construction area using the platform structure, and then placed in the construction area using the hoisting system. This improves work efficiency, reduces the labor intensity of workers, and avoids the problem of short service life caused by putting the refractory mortar into production before it is fully dry.
[0006] Furthermore, the hoisting system includes a lower support structure, an upper fixing structure, and connecting components; The lower support structure includes steel plates and channel steel. The steel plates are arranged in an L-shape. The inner sides of the angles of the two L-shaped steel plates face each other. The inner bottom surface formed by the opposite sides is provided with channel steel. The inner bottom surface formed by the opposite sides is used to support the prefabricated fire channel wall. The upper fixing structure includes a lifting structure and a fixing plate. The fixing plate has a U-shaped cross-section, and the inner shape of the fixing plate matches the top of the prefabricated fire channel wall. The lifting structure is connected to the fixing plate. One end of the connector is connected to the lifting structure, and the other end is connected to the steel plate. The length of the connector matches the height of the prefabricated fire channel wall.
[0007] By specifically designing the hoisting system structure, the prefabricated fire channel wall can be positioned and moved easily and quickly.
[0008] Furthermore, all the connecting components are bolted connections. This ensures that the fire channel wall bricks are fixed during fire channel hoisting, preventing misalignment or deformation, and achieving safe overall hoisting of the fire channel wall.
[0009] Furthermore, the steel plate has a thick steel plate with a thickness of 5-10 mm and a thin steel plate with a thickness of 3-5 mm. The thick steel plate and the thin steel plate are welded together at the ends to form an L-shape, and the prefabricated fire channel wall is placed on the thin steel plate.
[0010] By placing the prefabricated fire channel wall on a thin steel plate, the bottom thin steel plate can be easily removed after the prefabricated fire channel wall is moved to the construction area.
[0011] Furthermore, the width of the channel steel is the length of the third fire channel wall brick at the end of the bottom layer of the fire channel wall, and the length of the channel steel is the width of the fire channel. When constructing the precast fire channel wall, the channel steel replaces the third fire channel wall brick.
[0012] The stability of the prefabricated fire wall hoisting is increased by setting up channel steel.
[0013] Furthermore, the length and width of the central area of the masonry platform are 10-30mm larger than the length and width of the precast fire channel wall, and the width of the surrounding area of the masonry platform is 0.9~1.1m.
[0014] Setting specific dimensions facilitates construction workers standing on the masonry platform.
[0015] Furthermore, the central area of the masonry platform is surrounded by a fence with a height of 10-30mm, and the outer edge of the masonry platform is equipped with a guardrail.
[0016] By setting up barriers, refractory bricks and other items placed on the masonry platform are prevented from sliding into the central area, and by setting up guardrails, the safety of construction workers is ensured.
[0017] Furthermore, the lifting device is an electric hoist, and there are two electric hoists, which use the same controller to lift and lower synchronously.
[0018] The stability of the masonry platform's lifting was ensured by setting up two electric hoists that lift synchronously.
[0019] Furthermore, there are two columns, located at both ends of the masonry platform along its length. A support platform is provided at the top of each column, and the electric hoist is mounted on the support platform. The support platform provides support for the electric hoist, making lifting and lowering more stable.
[0020] The beneficial effects of the present invention are: This invention discloses an offline fire channel wall construction system. By setting up a platform structure and a hoisting system, it enables the prefabrication of fire channel walls outside the construction area using the platform structure, and then placing the prefabricated fire channel walls into the construction area using the hoisting system. This improves work efficiency, reduces the labor intensity of workers, and avoids the problem of short service life caused by putting refractory mortar into production before it is fully dry. Furthermore, the design of the platform structure and hoisting system makes construction faster, more convenient, stable, and safer. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a top view schematic diagram of the platform structure of an offline fire channel wall masonry system according to the present invention; Figure 2 This is a front view schematic diagram of the platform structure of an offline fire channel wall masonry system according to the present invention; Figure 3 This is a front view schematic diagram of the hoisting system of an offline fire channel wall masonry system according to the present invention; Figure 4 This is a side view schematic diagram of the hoisting system of an offline fire channel wall masonry system according to the present invention.
[0022] In the diagram: 1. Masonry platform; 2. Guardrail; 3. Column; 4. Supporting platform; 5. Electric hoist; 6. Thick steel plate; 7. Thin steel plate; 8. Channel steel; 9. Fixing plate; 10. Lifting structure; 11. Connector; 12. Precast fire channel wall. DETAILED DESCRIPTION
[0023] To better explain and facilitate understanding of the present invention, it will be described in detail below with reference to the accompanying drawings and specific embodiments. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a clearer and more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.
[0024] like Figure 1-4As shown, an offline fire channel wall construction system includes a platform structure and a hoisting system. The platform structure includes a construction platform 1, columns 3, and a lifting device. The construction platform 1 has a U-shaped structure with a hollow central area for constructing prefabricated fire channel walls 12. The columns 3 are connected to the four corners of the bottom of the construction platform 1 to support the construction platform 1. The top of the columns 3 is equipped with a lifting device, which controls the lifting and lowering of the construction platform 1 along the vertical direction of the columns 3. The hoisting system is used to carry the prefabricated fire channel walls 12 and move them into the construction area.
[0025] The masonry platform 1 can be raised and lowered, serving as a platform for masonry operations and the storage of materials such as refractory bricks and refractory mortar.
[0026] By setting up a platform structure and hoisting system, the fire channel wall 12 can be prefabricated on the platform outside the construction area, and then placed in the construction area by the hoisting system. This improves work efficiency, reduces the labor intensity of workers, and avoids the problem of short service life caused by putting the refractory mortar into production before it is fully dried.
[0027] Specifically, the hoisting system includes a lower support structure, an upper fixing structure, and a connector 11; The lower support structure includes steel plates and channel steel 8. The steel plates are arranged in an L-shape. The inner sides of the angles of the two L-shaped steel plates are opposite each other. The channel steel 8 is provided on the inner bottom surface formed by the opposite sides. The inner bottom surface formed by the opposite sides is used to support the prefabricated fire channel wall 12. The upper fixing structure includes a lifting structure 10 and a fixing plate 9. The fixing plate 9 has a U-shaped cross-section and the inner shape of the fixing plate 9 matches the top of the prefabricated fire channel wall 12. The lifting structure 10 is connected to the fixing plate 9. One end of the connector 11 is connected to the lifting structure 10, and the other end is connected to the steel plate. The length of the connector 11 matches the height of the prefabricated fire channel wall 12.
[0028] By specifically designing the hoisting system structure, the prefabricated fire wall 12 can be positioned and moved, making the operation convenient and quick.
[0029] Specifically, all connectors 11 are connected by bolts. This ensures that the fire channel wall bricks are fixed during fire channel hoisting, preventing misalignment or deformation, and achieving safe hoisting of the entire fire channel wall.
[0030] Specifically, the steel plate has a thick steel plate 6 with a thickness of 5-10 mm and a thin steel plate 7 with a thickness of 3-5 mm. The thick steel plate 6 and the thin steel plate 7 are welded together at the ends to form an L-shape, and the prefabricated fire channel wall 12 is placed on the thin steel plate 7.
[0031] By placing the prefabricated fire channel wall 12 on the thin steel plate 7, the bottom thin steel plate 7 can be easily removed after the prefabricated fire channel wall 12 is moved to the construction area.
[0032] Specifically, the width of the channel steel 8 is the length of the third fire channel wall brick at the end of the bottom layer of the fire channel wall, and the length of the channel steel 8 is the width of the fire channel. When constructing the precast fire channel wall 12, the channel steel 8 replaces the third fire channel wall brick.
[0033] The stability of the prefabricated fire channel wall 12 is increased by setting channel steel 8.
[0034] Specifically, the length and width of the central area of the masonry platform 1 are 10-30mm larger than the length and width of the precast fire channel wall 12, preferably 20mm, and the width of the surrounding area of the masonry platform 1 is 0.9~1.1m, preferably 1m.
[0035] Setting specific dimensions facilitates construction workers standing on the masonry platform 1 for construction.
[0036] Specifically, the central area of the masonry platform 1 is provided with a fence with a height of 10~30mm, preferably 20mm, and the outer edge of the masonry platform 1 is provided with a guardrail 2.
[0037] By setting up barriers, refractory bricks and other items placed on the masonry platform 1 are prevented from sliding into the central area. By setting up guardrails 2, the construction safety of the workers is ensured.
[0038] Specifically, the lifting device is an electric hoist 5, and there are two electric hoists 5. The two electric hoists 5 use the same controller to lift and lower synchronously.
[0039] The stability of the masonry platform 1 was ensured by setting up two electric hoists 5 for synchronous lifting.
[0040] Specifically, there are two columns 3, located at both ends of the masonry platform 1 along its length. A support platform 4 is provided at the top of each column 3, and the electric hoist 5 is mounted on the support platform 4. The support platform 4 provides support for the electric hoist 5, making lifting more stable.
[0041] The working process of an offline fire wall masonry system: The initial hoisting system is placed outside the furnace. Precast fire channel walls 12 are built on the lower support structure. At this time, the channel steel 8 replaces the bottom third fire channel wall brick. After the precast fire channel wall 12 is built, wait for the refractory mortar to dry completely. Assemble the connector 11 and the upper fixing structure with the lower support structure. The hoisting system moves the precast fire channel wall 12 away from the center area of the masonry platform 1 and places it in the construction area inside the roasting furnace. Pull out the thin steel plate 7 and channel steel 8 at the bottom of the precast fire channel wall 12 along the width direction and move them outside the furnace. The bottom third fire channel wall brick replaced by the channel steel 8 is embedded in the fire channel wall. If the brick has protruding mortar, the mortar needs to be ground flat, refractory mortar is applied, and then it is embedded. Finally, the top casting block of the roasting furnace is installed.
[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A fire channel wall offline masonry system, characterized in that: The invention comprises a platform structure and a lifting system; the platform structure comprises a masonry platform (1), columns (3) and a lifting device; the masonry platform (1) is a U-shaped structure with a hollow central area, and is used for masonry of a prefabricated fire channel wall (12); the columns (3) are connected to the four corners of the bottom of the masonry platform (1) and are used for supporting the masonry platform (1); a lifting device is provided on the top of the columns (3), and the lifting device is used for controlling the lifting of the masonry platform (1) along the vertical direction of the columns (3); the lifting system is used for moving the prefabricated fire channel wall (12) into the construction area.
2. The off-line fire wall masonry system according to claim 1, characterized in that: The hoisting system comprises a lower supporting structure, an upper fixing structure and a connecting member (11); The lower supporting structure comprises a steel plate and a channel steel (8), wherein the steel plate forms an L-shape, wherein the inner sides of two L-shaped steel plates are opposite to each other, and the inner bottom surfaces formed opposite to each other are provided with a channel steel (8), and the inner bottom surfaces formed opposite to each other are used to support the prefabricated fire channel wall (12); The upper fixed structure comprises a lifting structure (10) and a fixing plate (9), the fixing plate (9) having a U-shaped cross section, the inner side shape of the fixing plate (9) matching the top of the prefabricated fire channel wall (12), and the lifting structure (10) is connected to the fixing plate (9); One end of the connecting piece (11) is connected to the lifting structure (10), and the other end is connected to the steel plate. The length of the connecting piece (11) matches the height of the prefabricated fire channel wall (12).
3. The off-line fire wall masonry system according to claim 2, characterized in that: The connection method of the connecting pieces (11) is bolt connection, which ensures that the fire channel wall bricks are fixed when the fire channel is hoisted, and no dislocation or deformation occurs, thereby achieving safe hoisting of the fire channel wall as a whole.
4. The off-line fire wall construction system according to claim 2, characterized in that: The steel plate comprises a thick steel plate (6) with a thickness of 5 to 10 mm and a thin steel plate (7) with a thickness of 3 to 5 mm. The thick steel plate (6) and the thin steel plate (7) are welded together at the end positions to form an L shape. The prefabricated fire channel wall (12) is placed on the thin steel plate (7).
5. The off-line fire wall construction system according to claim 2, characterized in that: The width of the channel steel (8) is the length of the third fire channel wall brick from the end of the bottom layer of the fire channel wall. The length of the channel steel (8) is the width of the fire channel. When the prefabricated fire channel wall (12) is built, the channel steel (8) replaces the third fire channel wall brick.
6. The off-line fire wall construction system according to claim 1, characterized in that: The length and width of the central area of the masonry platform (1) are 10-30 mm greater than the length and width of the prefabricated fire channel wall (12), and the width of the surrounding area of the masonry platform (1) is 0.9-1.1 m.
7. The off-line fire wall construction system according to claim 1, characterized in that: The edge of the central area of the masonry platform (1) is provided with a fence with a height of 10 to 30 mm, and the outer edge of the masonry platform (1) is provided with a guardrail (2).
8. The off-line fire wall construction system according to claim 1, characterized in that: The lifting device is an electric hoist (5), and there are two electric hoists (5). The two electric hoists (5) are lifted and lowered synchronously using the same controller.
9. The off-line fire wall construction system according to claim 8, characterized in that: There are two upright columns (3) disposed at both ends of the masonry platform (1) along the length direction; a support platform (4) is disposed at the top of the upright columns (3); and the electric hoist (5) is disposed on the support platform (4).