Efficient installation method for quenching furnace bottom roller

Abstract

The present application belongs to quenching furnace installation construction technical field, specifically relates to a kind of quenching furnace bottom roller efficient installation method, make hanger, hanger top is provided with track;Hanger is installed on the wrong table;Track is aligned in the middle line of installation hole;Four-wheel hoisting rail pulley is installed on the track, four-wheel hoisting rail pulley lower end is hung the chain, and the fixed hook is arranged in the lower end of the chain;Quenching furnace bottom roller is placed flat, so that the left end of quenching furnace bottom roller is inserted from the installation hole of one side of furnace body;Pull the chain, so that the fixed hook is lifted to the position of quenching furnace bottom roller and is fixed;Control four-wheel hoisting rail pulley moves along the track, drive the right end of quenching furnace bottom roller to move in the inside of furnace body and pass to the installation hole of the other side of furnace body;Unhook the fixed hook, loosen the chain, and installation is completed.The present application reduces the difficulty of furnace roller installation, effectively solves the inconvenience of floor type work, is easy to operate, is easy to move, improves installation efficiency, and reduces manpower investment.

Description

Technical Field

[0001] This invention belongs to the field of quenching furnace installation and construction technology, specifically relating to an efficient method for installing the bottom rollers of a quenching furnace. Background Technology

[0002] In industrial heat treatment production line projects, the quenching furnace plays a crucial role as a core piece of equipment. The quenching furnace is a type of continuous heating heat treatment equipment widely used in the industrial heat treatment industry. It mainly includes the furnace body, heating mechanism, motion mechanism and control part. The quenching furnace has furnace rollers installed at equal intervals. The installation of the furnace rollers must be carried out after the installation of the lower radiant tubes. This makes it extremely inconvenient for the personnel to move around inside the furnace and seriously affects the efficiency of furnace roller installation. The low efficiency of furnace roller installation directly affects the subsequent work of the upper radiant tubes and the piping before the nozzle.

[0003] Currently in China, furnace rollers are mostly installed by manually dragging them from one end to the other, or by using floor-mounted fixtures inside the furnace. However, even with floor-mounted fixtures, the fixtures need to be moved after each furnace tube installation due to the influence of the radiant tubes. Moving the fixtures takes up most of the time. How to efficiently complete the installation of furnace rollers to suit the pace of modern development is a problem that needs to be solved by existing technologies. Summary of the Invention

[0004] In order to reduce the difficulty of installing furnace rollers in quenching furnaces and to complete the installation of furnace rollers efficiently, this invention provides a method for efficiently installing furnace bottom rollers in quenching furnaces, which can quickly complete the installation of furnace rollers.

[0005] The technical solution adopted by the present invention to solve the aforementioned problem is as follows: A method for efficient installation of the bottom roller of a quenching furnace, wherein a refractory layer has been constructed on the inner wall of the furnace before the bottom roller is installed. The refractory layer is divided into a lower furnace roller brick section and an upper furnace roller brick section according to its position. A staggered joint is provided at the connection between the top of the lower furnace roller brick section and the upper furnace roller brick section. Mounting holes for installing the bottom roller are provided on both sides of the furnace body, and the mounting holes are set at the connection position between the upper furnace roller brick section and the lower furnace roller brick section. Based on the above furnace structure, the construction process is as follows: Step 1: Fabricate the hanger: The hanger includes a left support frame, a right support frame, a connecting beam, and a track. The left support frame and the right support frame are connected by the connecting beam, and the two ends of the track are fixedly installed on the top of the left support frame and the top of the right support frame, respectively. Step 2: Transport the left support frame into the furnace body and install it on the upper side of the mounting hole on one side of the furnace body. Fix the lower end of the left support frame on the misalignment platform. Transport the right support frame into the quenching furnace and install it on the upper side of the mounting hole on the other side. Fix the lower end of the right support frame on the misalignment platform. Then connect the left support frame and the right support frame through the connecting beam and install the track. Align the track with the center line of the mounting hole. Step 3: Install the traction mechanism, which consists of a four-wheel hanging rail pulley and a chain hoist. The four-wheel hanging rail pulley is installed on the rail, and the chain hoist is hung at the lower end of the four-wheel hanging rail pulley. The lower end of the chain hoist is equipped with a fixing hook. Step 4: Place the bottom roller horizontally so that the left end of the bottom roller is inserted into the mounting hole on one side of the furnace body; Step 5: Pull the chain hoist to raise the fixing hook to the position of the furnace bottom roller and fix it to the furnace bottom roller; Step 6: Control the four-wheel hanging rail pulley to move along the track, driving the right end of the furnace bottom roller to move inside the furnace body and pass through the mounting hole on the other side of the furnace body; Step 7: Unlock the fixing hook, loosen the chain hoist, and the installation is complete.

[0006] Compared with the prior art, the present invention employing the above structure has the following advantages: This invention reduces the difficulty of furnace roller installation, effectively solves the drawbacks of inconvenient floor-mounted operation, is easy to operate and move, improves installation efficiency, and reduces manpower input. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the furnace body structure of the present invention; Figure 2 This is a schematic diagram of the furnace bottom roller installation fixture structure of the present invention; Figure 3 This is a perspective view of the hanger structure of the present invention. Figure 4 This is a schematic diagram of the hanger installation structure of the present invention; Figure 5 This is a schematic diagram of the furnace bottom roller installation via a traction mechanism according to the present invention; Figure 6 This is a schematic diagram of the furnace bottom roller installation state completed by the traction mechanism of the present invention.

[0008] In the diagram: 1. Furnace body; 2. Mounting hole; 3. Hanger; 31. Left support frame; 32. Connecting beam; 33. Right support frame; 34. Track; 4. Traction mechanism; 41. Four-wheel hanging rail pulley; 42. Chain hoist; 43. Fixing hook; 5. Furnace bottom roller. Detailed Implementation

[0009] The present invention will be further described below with reference to embodiments, the purpose of which 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.

[0010] See Figures 1 to 6A method for efficient installation of the bottom roller of a quenching furnace, wherein a refractory layer has been constructed on the inner wall of the furnace body 1 before the bottom roller 5 is installed. The refractory layer is divided into a lower furnace roller brick part and an upper furnace roller brick part according to its position. A staggered joint is provided at the connection between the top of the lower furnace roller brick part and the upper furnace roller brick part. Mounting holes 2 for installing the bottom roller 5 are provided on both sides of the furnace body 1. The mounting holes 2 are set at the connection position between the upper furnace roller brick part and the lower furnace roller brick part. Based on the above furnace body 1 structure, the construction process is as follows: Step 1: Fabricate hanger 3: Hanger 3 includes a left support frame 31, a right support frame 33, a connecting beam 32 and a track 34. The left support frame 31 and the right support frame 33 are connected by the connecting beam 32. The two ends of the track 34 are fixedly installed on the top of the left support frame 31 and the right support frame 33 respectively. Step 2: Transport the left support frame 31 into the furnace body 1 and install it on the upper side of the mounting hole 2 on one side of the furnace body 1. The lower end of the left support frame 31 is fixed on the misalignment. Transport the right support frame 33 into the quenching furnace and install it on the upper side of the mounting hole 2 on the other side. The lower end of the right support frame 33 is fixed on the misalignment. Then, connect the left support frame 31 and the right support frame 33 through the connecting beam 32 and install the track 34. The track 34 is aligned with the center line of the mounting hole 2. Step 3: Install the traction mechanism 4. The traction mechanism 4 consists of a four-wheel hanging rail pulley 41 and a chain hoist 42. The four-wheel hanging rail pulley 41 is installed on the track 34. The chain hoist 42 is hung at the lower end of the four-wheel hanging rail pulley 41. A fixing hook 43 is provided at the lower end of the chain hoist 42. Step 4: Place the bottom roller 5 horizontally, so that the left end of the bottom roller 5 passes through the mounting hole 2 on one side of the furnace body 1; Step 5: Pull the chain hoist 42 to raise the fixing hook 43 to the position of the furnace bottom roller 5 and fix it to the furnace bottom roller 5; Step 6: Control the four-wheel hanging rail pulley 41 to move along the track 34, driving the right end of the furnace bottom roller 5 to move inside the furnace body 1 and pass through the mounting hole 2 on the other side of the furnace body 1; Step 7: Unlock the fixing hook 43, loosen the chain hoist 42, and complete the installation.

[0011] The hanger 3 is made of angle steel and steel pipe. The left support frame 31, the right support frame 33 and the connecting beam 32 are made of L50mm×5mm angle steel, and the track 34 is made of 50mm×50mm rectangular steel pipe.

[0012] The traction mechanism 4 adopts a C50 type four-wheel hanging rail pulley 41 and a 0.5t chain hoist 42.

[0013] During furnace roller installation, personnel outside the furnace use rollers to insert the roller. Personnel inside the furnace then adjust the hook to the roller's position by pulling the chain hoist 42. Once the hook and roller are secured, the roller is dragged, causing the four-wheeled lifting pulley 41 to slide on the rectangular steel pipe. This pulls the roller from one end of the furnace wall to the other, completing one installation cycle. Personnel inside the furnace can then lift the lifting frame 3 and move it to the next installation point, repeating this process.

[0014] The beneficial effects of this invention are: Compared to traditional methods, this invention reduces the difficulty of furnace roller installation; Compared to traditional methods, this invention effectively solves the drawbacks of on-site work; Compared to traditional methods, this invention is lightweight and easy to move; Compared to traditional methods, this invention improves the efficiency of furnace roller installation; Compared to traditional methods, this invention reduces the need for manpower. Compared to traditional methods, this invention saves on engineering costs.

[0015] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A method for efficient installation of the bottom roller of a quenching furnace, wherein a refractory layer has been constructed on the inner wall of the furnace body (1) before the bottom roller (5) is installed. The refractory layer is divided into a lower furnace roller brick part and an upper furnace roller brick part according to its position. A staggered joint is provided at the connection between the top of the lower furnace roller brick part and the upper furnace roller brick part. The furnace body (1) is provided with mounting holes (2) for installing the bottom roller (5) on both sides. The mounting holes (2) are set at the connection between the upper furnace roller brick part and the lower furnace roller brick part. Its features are: Based on the above furnace body (1) structure, the construction process is as follows: Step 1: Make the hanger (3): The hanger (3) includes a left support frame (31), a right support frame (33), a connecting beam (32) and a track (34). The left support frame (31) and the right support frame (33) are connected by the connecting beam (32). The two ends of the track (34) are fixedly installed on the top of the left support frame (31) and the right support frame (33) respectively. Step 2: Transport the left support frame (31) into the furnace body (1) and install it on the upper side of the mounting hole (2) on one side of the furnace body (1). The lower end of the left support frame (31) is fixed on the misalignment. Transport the right support frame (33) into the quenching furnace and install it on the upper side of the mounting hole (2) on the other side. The lower end of the right support frame (33) is fixed on the misalignment. Then connect the left support frame (31) and the right support frame (33) through the connecting beam (32) and install the track (34). The track (34) is aligned with the center line of the mounting hole (2). Step 3: Install the traction mechanism (4). The traction mechanism (4) consists of a four-wheel hanging rail pulley (41) and a chain hoist (42). The four-wheel hanging rail pulley (41) is installed on the track (34). The chain hoist (42) is hung at the lower end of the four-wheel hanging rail pulley (41). A fixed hook (43) is provided at the lower end of the chain hoist (42). Step 4: Place the bottom roller (5) flat, so that the left end of the bottom roller (5) passes through the mounting hole (2) on one side of the furnace body (1); Step 5: Pull the chain hoist (42) to raise the fixing hook (43) to the position of the furnace bottom roller (5) and fix it to the furnace bottom roller (5); Step 6: Control the four-wheel hanging rail pulley (41) to move along the track (34), driving the right end of the furnace bottom roller (5) to move inside the furnace body (1) and pass through the mounting hole (2) on the other side of the furnace body (1); Step 7: Unlock the fixing hook (43), loosen the chain hoist (42), and complete the installation.

2. The efficient installation method for the bottom rollers of the quenching furnace according to claim 1, characterized in that: The left support frame (31), right support frame (33) and connecting beam (32) are made of L50mm×5mm angle steel, and the track (34) is made of 50mm×50mm rectangular steel pipe.

3. The efficient installation method for the furnace bottom rollers of the quenching furnace according to claim 1, characterized in that: The traction mechanism (4) adopts a C50 type four-wheel hanging rail pulley (41) and a 0.5t chain hoist (42).

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