Sealing device for air cooling treatment of high-temperature molten slag

Abstract

The utility model provides a high-temperature molten slag air cooling treatment sealing device, which comprises a water sealing device, a folding wind blocking cover and a sealing cover baffle plate, the folding wind blocking cover is arranged on one side of the sealing cover baffle plate in a folding way, and the folding wind blocking cover is movably connected with the sealing cover baffle plate through the water sealing device in a sealing way. The two water seal devices are arranged on one sides of the two ends of an opening of the sealing cover baffle respectively, and the two ends of the folding wind blocking cover are arranged in the two water seal devices respectively so as to seal the opening of the sealing cover baffle. The sealing device can solve the problems that in the prior art, smoke is exposed, and the sealing device is prone to being damaged, production safety is guaranteed to the maximum extent, and heat energy resource recycling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature molten slag air-cooled heat recovery sealing technology, specifically, to a high-temperature molten slag air-cooled treatment sealing device. Background Technology

[0002] my country is a major steel producer, accounting for over 50% of global crude steel production annually. Approximately 0.1 tons of steel slag are generated for every ton of crude steel produced, and in recent years, my country's annual steel slag production has exceeded 100 million tons. The discharge temperature of steel slag is approximately 1600℃. Using a specific heat of 1 kJ / kg℃, the latent heat contained in steel slag at 1600℃ is calculated to be 1600 MJ, equivalent to 54 kg of standard coal. Therefore, molten steel slag contains a large amount of waste heat resources, possessing immense thermal energy value.

[0003] Currently, the mainstream steel slag treatment process uses water as the main cooling medium. However, the recovered steam has a high dust content and unstable quality, lacking the value of heat energy recovery and utilization. Using air as the treatment medium can efficiently recover the heat energy resources of high-temperature slag and facilitate clean emission of flue gas. The all-dry steel slag treatment process is an important measure to upgrade existing steel slag treatment technology and equipment. However, in the existing all-dry steel slag treatment process, because the power unit is installed outside the high-temperature environment, flue gas is easily exposed during the operation of the treatment device. In addition, during the air cooling process of high-temperature molten slag, high-temperature splashed materials can easily damage the sealing device. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a high-temperature molten slag air-cooled sealing device, which solves the problems of flue gas exposure and easy damage to the sealing device in the prior art, thereby maximizing production safety and improving the efficiency of heat energy recovery.

[0005] This utility model provides a sealing device for air-cooled treatment of high-temperature molten slag, including a water seal device, a folding windbreak cover, and a sealed cover baffle. The folding windbreak cover is foldably disposed on one side of the sealed cover baffle. The folding windbreak cover and the sealed cover baffle are movably and sealingly connected through the water seal device. Two water seal devices are respectively disposed on one side of the opening of the sealed cover baffle. The two ends of the folding windbreak cover are respectively disposed in the two water seal devices to form a seal on the opening of the sealed cover baffle.

[0006] Furthermore, both ends of the folding windbreak are bent downwards and extended, and both ends of the folding windbreak are provided with pulleys, which are movable and cooperate with the water seal device.

[0007] Furthermore, the water seal device includes an upper U-groove and a lower U-groove with upward openings, and a slide rail extending along the length of the U-groove is provided in the upper U-groove and the lower U-groove, and the upper U-groove and the lower U-groove are filled with sealing water.

[0008] Furthermore, the upper part of the upper U-groove and / or lower U-groove of the water seal device is provided with a water supply pipe, and the pulley is movablely engaged with the upper U-groove and lower U-groove.

[0009] Furthermore, the folding windbreak also includes pleats, tension springs, armor plates, mounting bases, and supporting steel plates. The tension springs are provided on the side of the pleats near the sealed cover baffle, and there are two sets of tension springs.

[0010] Furthermore, the armor plate covers the side of the pleats away from the sealed cover baffle.

[0011] Furthermore, a supporting steel sheet is fixed to the inner side of the pleat to prevent bending deformation during the stretching and shrinking of the pleat.

[0012] Furthermore, the mounting bracket includes two ends, A and B, with end A connected to the end of the cover and end B connected to the walking device.

[0013] Furthermore, the two vertical ends of the pleat are connected to the mounting base assembly, and pulleys are installed at horizontal intervals on the pleat to cooperate with the tension spring in horizontal stretching and contraction.

[0014] The high-temperature molten slag air-cooling sealing device of this utility model can achieve synchronous deformation when the device moves by using a folded windproof cover. The high-temperature flue gas is controlled in a relatively closed space by using flexible materials, and the water injection seal can prevent the high-temperature flue gas from leaking out through the gaps during the stretching and contraction of the folds, so as to achieve the maximum recycling of high-temperature flue gas.

[0015] Meanwhile, this utility model achieves sealing of the high-temperature molten slag air-cooling process. It adopts a flexible material folding and telescopic structure protective cover in conjunction with water injection to seal the high-temperature molten slag air-cooling heat recovery process. The structure is simple, the deformation is controllable, the operation is continuous, and it is conducive to heat recovery and ultra-low emissions.

[0016] The sealing device of this invention can be applied to the sealing of high-temperature molten slag such as converter steel slag, electric furnace slag, stainless steel slag and some non-ferrous slag in the air-cooling process, realizing the high-efficiency resource recovery and utilization of high-temperature flue gas. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1This is an overall schematic diagram of a high-temperature molten slag air-cooling sealing device provided by this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1-Water seal device, 2-Folding windbreak cover, 3-Sealed cover baffle, 11-Upper U-groove, 12-Lower U-groove, 13-Water supply pipe, 21-Slide rail, 22-Pulley, 23-Pleated plate, 24-Tension spring, 25-Armor plate, 26-Mounting base assembly, 27-Supporting steel plate. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] See appendix Figure 1 This utility model provides a sealing device for air-cooling treatment of high-temperature molten slag, including a water seal device 1, a folding windbreak 2, and a sealed cover baffle 3. The folding windbreak 2 is foldably disposed on one side of the sealed cover baffle 3. The folding windbreak 2 and the sealed cover baffle 3 are movably and sealingly connected through the water seal device 1. Two water seal devices 1 are respectively disposed on one side of the opening of the sealed cover baffle 3. The two ends of the folding windbreak 2 are respectively disposed in the two water seal devices 1 to form a seal on the opening of the sealed cover baffle 3.

[0024] Furthermore, both ends of the folding windbreak 2 are bent downwards and extended, and both ends of the folding windbreak 2 are provided with pulleys 22, which are movable and cooperate with the water seal device 1.

[0025] Furthermore, the water seal device 1 includes an upper U-groove 11 and a lower U-groove 12 with the opening facing upwards. A slide rail 21 extending along the length of the U-groove is provided in the upper U-groove 11 and the lower U-groove 12. The upper U-groove 11 and the lower U-groove 12 are filled with sealing water.

[0026] Furthermore, the upper part of the upper U-groove 11 and / or lower U-groove 12 of the water seal device 1 is provided with a water supply pipe 13, and the pulley 22 is movablely engaged with the upper U-groove 11 and the lower U-groove 12.

[0027] Furthermore, the folding windbreak cover 2 also includes pleats 23, tension springs 24, armor plates 25, mounting base 26, and supporting steel plates 27. The tension springs 24 are provided on the side of the pleats 23 near the sealed cover baffle 3, and there are two sets of tension springs 24. The tension springs 24 are used to fix and control the uniform stretching and contraction of the pleats 23, ensuring that the pleats 23 operate stably and do not deform during movement.

[0028] Furthermore, the armor plate 25 is installed on the side of the pleated plate 23 away from the sealing cover baffle 3, so that if the pleated plate 23 of the sealing device is damaged by high-temperature slag splashing during the production process, the armor plate 25 can provide an additional layer of protection and prevent the high-temperature slag from falling to the outside and causing danger.

[0029] Furthermore, a supporting steel plate 27 is fixed inside the pleat 23 to prevent bending deformation during the stretching and shrinking of the pleat 23, which would affect the operating performance.

[0030] Furthermore, the mounting bracket includes two ends, A and B, with end A connected to the end of the cover and end B connected to the walking equipment.

[0031] Furthermore, the two vertical ends of the pleat 23 are connected to the mounting base 26, and the pleat 23 is horizontally spaced with pulleys 22 to cooperate with the tension spring 24 to stretch and contract horizontally, so that the pleat 23 deforms synchronously with the movement of the walking device.

[0032] Furthermore, the device can operate normally in a high-temperature environment of 1500℃; water is injected into the upper U-tank 11 and lower U-tank 12 of the device for sealing, and the water supply pipe 13 is responsible for ensuring the water level in the upper U-tank 11 and lower U-tank 12.

[0033] Furthermore, during the stretching and shrinking process, for the sake of device lifespan, the maximum stretching angle of the pleat 23 is no greater than 150° and the minimum shrinking angle is no less than 30°.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-temperature molten slag air-cooling treatment sealing device comprising a water sealing device (1), a folding windbreak cover (2), and a closed cover baffle (3), characterized in that, The folding wind-resisting cover (2) is foldable on one side of the closed cover baffle (3), the folding wind-resisting cover (2) and the closed cover baffle (3) are movably and sealingly connected through the water seal device (1), two water seal devices (1) are respectively arranged on one side of both ends of the opening of the closed cover baffle (3), and both ends of the folding wind-resisting cover (2) are respectively arranged in the two water seal devices (1) to form the sealing of the opening of the closed cover baffle (3).

2. A high temperature molten slag air quenching sealing device according to claim 1, characterized in that, Both ends of the folding wind-resisting cover (2) are arranged in a downwardly bent and extended manner, both ends of the folding wind-resisting cover (2) are provided with pulleys (22), and the pulleys (22) are movably matched with the water seal device (1).

3. A high temperature molten slag air quenching sealing device according to claim 2, characterized in that, The water seal device (1) comprises an upper U-shaped groove (11) and a lower U-shaped groove (12) with openings upward, the upper U-shaped groove (11) and the lower U-shaped groove (12) are provided with sliding rails (21) extending along the length direction of the U-shaped grooves, and the upper U-shaped groove (11) and the lower U-shaped groove (12) are filled with water sealing.

4. A high temperature molten slag air quenching sealing device according to claim 3, characterized in that, The upper part of the upper U-shaped groove (11) and / or the lower U-shaped groove (12) of the water seal device (1) is provided with a water supplement pipe (13), and the pulley (22) is movably matched with the upper U-shaped groove (11) and the lower U-shaped groove (12).

5. A high temperature molten slag air quenching sealing device according to claim 2, wherein The folding wind-resisting cover (2) further comprises a pleat (23), a tension spring (24), an armor plate (25), a mounting seat group (26) and a supporting steel sheet (27), the pleat (23) is provided with the tension spring (24) on one side close to the closed cover baffle (3), and the tension spring (24) is in two groups.

6. A high temperature molten slag air quenching sealing device according to claim 5, wherein The armor plate (25) is arranged on one side away from the closed cover baffle (3) of the pleat (23).

7. A high temperature molten slag air quenching sealing device according to claim 5, wherein The inside of the pleat (23) is fixed with the supporting steel sheet (27) to prevent bending deformation during the stretching and contraction of the pleat (23).

8. A high temperature molten slag air quenching sealing device according to claim 5, wherein The mounting seat group (26) comprises A and B ends, the A end is connected to the end of the cover body, and the B end is connected to the walking equipment.

9. A high temperature molten slag air quenching sealing device as claimed in claim 8, wherein, Both perpendicular ends of the pleat (23) are connected to the mounting seat group (26), and the pleat (23) is provided with the pulley (22) at a horizontal interval distance to match the horizontal stretching and contraction of the tension spring (24).

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