Fire cutting dust hood device for continuous casting process
By adding branch pipes and side baffles to the fire dust removal cover device to form additional suction ports, the problem of smoke drifting is solved, the dust removal effect is significantly improved, and the factory pollution is reduced.
Patent Information
- Application Number
- CN202420227854.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-30
AI Technical Summary
In the continuous casting process, the flue gas generated by fire cutting is far away from the air suction port, causing the flue gas generated by flow cutting on both sides to float away from the dust collector and enter the factory, polluting the on-site environment.
A fire dust removal cover device is designed, by adding multiple branches to the dust removal air duct to form additional suction ports, and a side baffle and fence are provided on the dust removal cover to surround the operating area of the fire cutting machine and add suction ports to absorb. Smoke.
It effectively absorbs the flue gas generated by cutting on both sides during the fire cutting process, reduces the overflow of smoke into the factory, significantly improves the dust removal effect, is simple in structure and convenient in production.
Smart Images
Figure CN222132948U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of iron and steel metallurgy, in particular to a fire-cutting dust cover device used in a continuous casting process. Background Art
[0002] According to the Opinions on Promoting the Implementation of Ultra-low Emissions in the Steel Industry (Environmental Atmosphere
[2019] No. 35) and the Technical Guidance on the Formulation of Emergency Emission Reduction Measures for Key Industries in Severe Pollution Weather (2020 Revised Edition), differentiated emission reduction measures for key industries are fully implemented, and key industry enterprises are required to carry out performance grading, and classified measures are implemented for industrial enterprises with different governance levels and emission intensities. Enterprises rated as A must achieve ultra-low emissions throughout the entire process.
[0003] There is obvious smoke in the ladle casting area of the continuous casting process, which needs to be discharged through a dust hood to achieve ultra-low emission requirements. Therefore, newly built continuous casting machines are basically equipped with fire-removal dust hoods, and more and more old continuous casting machine plants have also added fire-removal dust hoods.
[0004] When the continuous casting machine is in production, the dust removal hood truck is driven to the top of the fire cutting machine and connected to the dust removal device pipeline in the workshop (with an electric valve). It is in the flue gas capture state, and the smoke generated by the fire cutting machine is sucked into the dust removal system. The smoke does not overflow, thus achieving the purpose of clean production.
[0005] like Figure 1 As shown in the figure, in a conventional fire-cutting dust hood, the workshop dust removal air duct is connected to the dust hood body, and an air suction port is formed in the middle part of the hood body to absorb the smoke generated by fire cutting. Since the distance between the billet cutting point and the dust hood air suction port is relatively large, usually 5 meters or more, the smoke generated by the fire cutting process can only be sucked away if it automatically floats to the vicinity of the air suction port. The smoke generated by the two-way cutting is far away from the air suction port and close to the edge of the dust hood. Even if it floats to the vicinity of the hood body, it is easy to float away from the dust hood and enter the factory, polluting the on-site environment. Utility Model Content
[0006] In view of the above-mentioned defects in the prior art, a fire cutting dust cover device for a continuous casting process is provided, which can significantly improve the problem of smoke generated by two-side stream fire cutting overflowing into the factory building.
[0007] The technical solution adopted by the utility model to solve the above technical problems is:
[0008] A fire-cutting dust cover device for a continuous casting process comprises a dust removal air duct and a dust removal cover, wherein the dust removal air duct and the dust removal cover are connected to form an air suction port on the dust removal cover; the device is characterized in that it also comprises a plurality of branch pipes and side baffles, wherein one end of the branch pipe is connected to the dust removal air duct, and the other end is connected to the dust removal cover to form an additional air suction port; the additional air suction port is distributed on both sides of the dust removal cover along the casting direction, and the side baffles are fixed on the dust removal cover and surround the working area and the surrounding side of the fire-cutting machine.
[0009] According to the above technical solution, at least two branch pipes are included, and the branch pipes are distributed on both sides of the dust removal cover along the casting direction.
[0010] According to the above technical solution, the side baffle includes a side baffle and a surrounding baffle, the side baffle is welded to the supporting column of the dust hood, and the surrounding baffle is fixed to the front and rear sides of the dust hood along the casting direction.
[0011] According to the above technical solution, the side guard is made of 3mm to 6mm thick steel plate, with a height of 2m to 3m, and is welded on the supporting column of the dust hood vehicle.
[0012] According to the above technical solution, the enclosure is made of 3mm~6mm steel plate with a height of 1m~2m to ensure that during the movement of the dust hood truck, the enclosure shall not interfere with the fire cutting machine or other equipment.
[0013] According to the above technical solution, the dust removal air duct branch pipe adopts a round tube with a diameter of 400mm to 700mm.
[0014] According to the above technical solution, the dust removal air duct branch pipe adopts a square tube with a cross-section equivalent to a circular tube with a diameter of 400mm to 700mm.
[0015] According to the above technical solution, the air suction port at the end of the dust removal air duct branch is designed to be trumpet-shaped.
[0016] According to the above technical solution, the dust removal air duct is made of 5mm~8mm steel plate.
[0017] The utility model has the following beneficial effects:
[0018] By adding a branch pipe to the dust removal air duct, a plurality of additional air suction ports are formed around the operating area of the fire cutting machine by using the branch pipe. The additional air suction ports absorb the smoke on the side of the operating area of the fire cutting machine that cannot be taken care of by the air suction ports of the dust removal air duct; the problem that the smoke generated by the two-side flow cutting during the fire cutting process easily drifts away from the dust removal hood and enters the factory building, polluting the on-site environment is solved. In addition, side guards are set around the operating area of the fire cutting machine on the dust removal hood, and the smoke and dust generated by the fire cutting machine are further sucked out in cooperation with the additional air suction ports set on the side. The improved fire cutting dust hood device has a simple structure and is easy to manufacture, and can significantly improve the smoke generated by the two-side flow fire cutting from overflowing into the factory building. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of an existing dust removal hood;
[0020] Figure 2 It is a structural schematic diagram of an embodiment provided by the utility model;
[0021] Figure 3 It is a side view of an embodiment provided by the utility model;
[0022] Figure 4 It is a partial structural schematic diagram of an embodiment provided by the utility model;
[0023] Figure 5 This is a schematic diagram of the connection of the branch pipe of the embodiment provided by the utility model to the dust removal air duct;
[0024] In the figure, 1. dust removal duct; 2. dust removal hood; 3. air suction port; 4. branch pipe; 5. additional air suction port; 6. side guard; 7. enclosure. DETAILED DESCRIPTION
[0025] The utility model is described in detail below with reference to the accompanying drawings and embodiments.
[0026] Reference Figure 2 to Figure 5 As shown, the utility model provides a fire-cutting dust cover device for a continuous casting process.
[0027] Example 1
[0028] The invention comprises a dust removal air duct 1 and a dust removal cover 2, the dust removal air duct and the dust removal cover are connected, and an air suction port 3 is formed on the dust removal cover. It also comprises a plurality of branch pipes 4 and side baffles, one end of the branch pipe is connected to the dust removal air duct, and the other end is connected to the dust removal cover to form an additional air suction port 5; the additional air suction port is distributed on both sides of the dust removal cover along the casting direction, and the side baffle is fixed on the dust removal cover and surrounds the working area and the surrounding side of the fire cutting machine.
[0029] In this embodiment, a branch pipe is added to the dust removal air duct, and a plurality of additional air suction ports are formed around the working area of the fire cutting machine by using the branch pipe. The additional air suction ports absorb the smoke on the side of the working area of the fire cutting machine that cannot be taken care of by the air suction ports of the dust removal air duct; thus, the problem that the smoke generated by the two-side stream cutting during the fire cutting process easily drifts away from the dust removal hood and enters the factory building, thereby polluting the on-site environment is solved. In addition, side guards are arranged around the working area of the fire cutting machine on the dust removal hood, and the smoke generated by the fire cutting machine is further sucked out in cooperation with the additional air suction ports arranged on the side. The improved fire cutting dust hood device has a simple structure and is easy to manufacture, and can significantly improve the problem of smoke generated by the two-side stream fire cutting overflowing into the factory building.
[0030] In the above embodiment, at least two branch pipes are included, and the branch pipes are distributed on both sides of the dust removal cover along the casting direction to absorb the smoke generated by the fire cutting on both sides.
[0031] Example 2
[0032] The structure and principle of Example 2 are similar to those of Example 1, except that a preferred arrangement of the side baffles is provided. The side baffles include side baffles 6 and enclosures 7. The side baffles are welded to the supporting columns of the dust hood, and the enclosures are fixed to the front and rear sides of the dust hood along the casting direction. The side baffles are fixed to the dust hood and move with the dust hood.
[0033] In Example 2, preferably, the side guard is made of 3mm to 6mm thick steel plate, with a height of 2m to 3m, and is welded to the supporting column of the dust hood vehicle.
[0034] In Example 2, preferably, the enclosure is made of 3mm to 6mm steel plate with a height of 1m to 2m to ensure that the enclosure does not interfere with the fire cutting machine or other equipment during the movement of the dust hood vehicle.
[0035] Example 3
[0036] The structure and principle of Example 3 are similar to those of Example 1 or 2, except that the dust removal air duct branch pipe adopts a round tube with a diameter of 400 mm to 700 mm.
[0037] Example 4
[0038] The structure and principle of Example 4 are similar to those of Example 1 or 2, except that the dust removal air duct branch pipe adopts a square tube with a cross-section equivalent to a circular tube with a diameter of 400 mm to 700 mm.
[0039] In Examples 1-4, the air suction port at the end of the dust removal air duct branch is designed to be trumpet-shaped, thereby increasing the cross-sectional area of the air suction port and enhancing the air suction effect.
[0040] In Examples 1-4, the dust removal air duct is made of 5mm-8mm steel plate, fixed on the dust removal hood body, and can be moved with the dust removal hood vehicle.
[0041] In Examples 1-4, the dust removal hood and the dust removal duct are fixed on a dust removal vehicle, and the dust removal vehicle is moved to the operating area of the fire cutting machine as needed.
[0042] The above are only preferred embodiments of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the protection scope of the present invention.
Claims
1. A fire-removing dust cover device for a continuous casting process, comprising a dust removal duct and a dust removal cover, wherein the dust removal duct and the dust removal cover are connected to form an air suction port on the dust removal cover; the characteristics are: It also includes multiple branch pipes and side baffles, one end of the branch pipe is connected to the dust removal air duct, and the other end is connected to the dust removal cover to form an additional air suction port; the additional air suction port is distributed on both sides of the dust removal cover along the casting direction, and the side baffles are fixed on the dust removal cover and surround the working area and the surrounding side of the fire cutting machine.
2. The fire-removing dust cover device for continuous casting process according to claim 1, characterized in that: It comprises at least two branch pipes, which are distributed on two sides of the dust removal cover along the casting direction.
3. The fire-removing dust cover device for continuous casting process according to claim 1, characterized in that: The side baffles include side baffles and enclosure baffles. The side baffles are welded on the supporting columns of the dust collecting hood, and the enclosure baffles are fixed on the front side and the rear side of the dust collecting hood along the casting direction.
4. The fire-removing dust cover device for continuous casting process according to claim 3, characterized in that: The side guard is made of 3mm to 6mm thick steel plate, with a height of 2m to 3m, and is welded to the supporting column of the dust collector truck.
5. The fire-removing dust cover device for continuous casting process according to claim 3, characterized in that: The enclosure is made of 3mm~6mm steel plate with a height of 1m~2m to ensure that the enclosure shall not interfere with the fire cutting machine or other equipment during the movement of the dust removal hood vehicle.
6. The fire-removing dust cover device for continuous casting process according to any one of claims 1 to 5, characterized in that: The dust removal air duct branch pipe adopts a round pipe with a diameter of 400mm to 700mm.
7. The fire-removing dust cover device for continuous casting process according to any one of claims 1 to 5, characterized in that: The dust removal air duct branch pipe adopts a square tube with a cross-section equivalent to a round tube with a diameter of 400mm to 700mm.
8. The fire-removing dust cover device for continuous casting process according to claim 1, characterized in that: The air inlet at the end of the dust removal air duct branch is designed to be trumpet-shaped.
9. The fire-removing dust cover device for continuous casting process according to claim 1, characterized in that: The dust removal air duct is made of 5mm~8mm steel plate.
10. The fire-removing dust cover device for continuous casting process according to claim 1, characterized in that: The dust removal hood and dust removal air duct are fixed on the dust removal vehicle, and the dust removal vehicle is moved to the operating area of the fire cutting machine according to needs.