High-temperature-resistant sealing stacking door for steel slag treatment
Through the high-temperature-resistant sealing of the curtain and roll structure of stacked doors, the problem that existing equipment cannot effectively seal high-temperature steam and flue gas is solved, and an efficient and reliable sealing effect is achieved, protecting the health of operators and reducing equipment wear and noise.
Patent Information
- Application Number
- CN202422110589.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-29
AI Technical Summary
In the existing steel slag treatment equipment, the dust collecting cover cannot effectively seal the high-temperature steam and flue gas, resulting in serious pollution in the factory, serious equipment corrosion, and threatened the health of the operators. The existing mechanism is bulky, easy to damage, high noise, and long switching time.
High-temperature-resistant sealed stacked doors are adopted, including door curtains, draw ropes and roll structures. The pull ropes are driven by the drive motor to roll the draw ropes to achieve stacking or unfolding the door curtains. The surface of the door curtains is coated with a high-temperature-resistant silicone layer, which combines the limit switch and the air-resistant duct to achieve efficient sealing.
It realizes effective sealing of high-temperature steam and flue gas, reduces factory pollution, protects the health of operators, and has a simple, compact and reliable structure, small power consumption and short opening and closing time.
Smart Images
Figure CN223062286U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of metallurgical steel slag treatment equipment, and particularly relates to a high-temperature resistant sealing stacked door for steel slag treatment. Background Art
[0002] As a major global steel producer, during the process of steel smelting, for every ton of steel produced, approximately 150 kg of steel slag is produced as a by-product. Since the comprehensive resource utilization rate of domestic steel slag in China is still at a relatively low level and the output is large, it not only occupies a large amount of industrial land but also causes great pressure on the environment. According to statistics, the output of steel slag in China reached 139 million tons in 2018, 149 million tons in 2019, and 160 million tons in 2020, showing an increasing trend year by year. Steel slag, due to its high temperature, complex composition, and the generation of a large amount of dusty wet flue gas during the treatment process, causes serious harm to the environment.
[0003] The "Opinions on Promoting the Implementation of Ultra-low Emissions in the Steel Industry" newly issued in 2019 stipulates that the particulate emission concentration of major pollution sources such as sintering machine heads, blast furnace tapping plants, electric furnaces, and heat treatment furnaces shall not be > 10 mg / m 3 .
[0004] Currently, the methods for steel slag treatment usually require prior pretreatment of molten steel slag, such as using the hot splash method, hot soaking method, drum method, etc., to process the molten steel slag into normal temperature blocks smaller than 300 mm. The hot splash method is to pour the high-temperature liquid steel slag onto the hot splash field and cool it naturally by spraying water or air, followed by crushing; the hot soaking method is to pour the high-temperature liquid steel slag into the hot soaking pool, spray water and continuously stir, and after the steel slag cools, it is crushed; the drum method is to pour the high-temperature liquid steel slag into the drum device, and the liquid steel slag simultaneously completes water distribution cooling, solidification, and crushing in the drum and is discharged to the slag yard through a plate conveyor. However, the dust hoods used in the existing steel slag treatment methods cannot effectively seal the high-temperature steam and flue gas generated during the treatment process, so that the dust removal device cannot completely collect them through the dust removal pipeline. A large part of the high-temperature steam and flue gas overflows through the feeding port, resulting in serious pollution inside the workshop, severe corrosion of equipment and facilities such as steel structures, and it is easy for on-site operators to inhale the dust and flue gas of solid particles, seriously affecting their physical health. However, the feeding ends of the existing dust hoods are mostly rotating doors, lifting doors and other mechanisms. These mechanisms not only have the disadvantages of heavy body, high cost, easy damage, high noise, long opening and closing time, and difficult control, but also are no longer in operation during long-term production due to frequent use. Utility Model Content
[0005] An embodiment of the present application provides a high-temperature resistant sealing stacked door for steel slag treatment, which uses a lightweight and deformable curtain to enclose the steel slag treatment site. It not only has the advantages of simple structure, low cost, low noise, low power, and short opening and closing time, but also can effectively seal high-temperature steam and flue gas.
[0006] In an embodiment of the present application, there is provided a high-temperature resistant sealing stacked door for steel slag treatment, which is used to open or close an opening of a closed space, and the opening extends along a vertical plane. The stacked door includes:
[0007] A curtain, the shape of the curtain is the same as the shape of the opening to enclose the opening. Wherein, the inner surface of the curtain facing the closed space has a high-temperature resistant silica gel coating;
[0008] A pull rope, the pull rope is connected to the curtain in the vertical direction, and a plurality of the pull ropes are arranged at equal intervals;
[0009] A winding drum, the winding drum is installed on the upper edge of the opening, the pull rope is wound around the surface of the winding drum in multiple turns, and the winding drum rotates axially around a central axis along the horizontal direction under the drive of a drive motor, so as to drive the curtain to stack or unfold via the pull rope to open or close the opening.
[0010] In one embodiment, it includes a plurality of winding drums, the plurality of winding drums are connected in series and arranged in sequence on the upper edge of the opening, and at least two of the pull ropes are wound around the surface of each winding drum.
[0011] In one embodiment, it includes:
[0012] A first dust cover, the first dust cover forms a sealed cavity for accommodating the plurality of winding drums, and the first dust cover is installed on the upper edge of the opening.
[0013] In one embodiment, it includes:
[0014] A pair of the drive motors, the drive motors are respectively drivingly connected to two ends of the central axis of the winding drum.
[0015] In one embodiment, it includes:
[0016] A second dust cover, the second dust cover forms a sealed cavity for accommodating the drive motor.
[0017] In one embodiment, the drive motor is drivingly connected to the central axis via a coupling.
[0018] In one embodiment, it includes:
[0019] A first limit switch, which is installed on a pair of vertical edges of the opening. The position of the first limit switch corresponds to the fully closed position of the curtain, and the drive motor stops rotating in response to the detection signal of the first limit switch; and / or
[0020] A second limit switch, which is installed on a pair of vertical edges of the opening. The position of the second limit switch corresponds to the fully open position of the curtain, and the drive motor rotates in the reverse direction or stops rotating in response to the detection signal of the second limit switch.
[0021] In one embodiment, it includes:
[0022] Guide rails, which are installed on a pair of vertical edges of the opening, and a pair of vertical edges of the curtain are respectively received in the guide rails;
[0023] Brushes, which are installed in the guide rails and wrap a pair of vertical edges of the curtain from the inner surface and the outer surface of the curtain respectively.
[0024] In one embodiment, it includes:
[0025] Multiple groups of air duct resistors, each group of air duct resistors is fixedly connected to one of the pull ropes, and multiple air duct resistors in each group are arranged at equal intervals on one side surface of the curtain.
[0026] In one embodiment, each group of air duct resistors includes a counterweight air duct resistor, and the counterweight air duct resistor is located at the bottom edge of the curtain in the vertical direction.
[0027] This example can effectively seal the high-temperature dust-containing steam and flue gas of the dust collector for the metallurgical steel slag treatment process. The device has a compact structure, is simple and reliable, easy to operate, has adjustable speed, and low power consumption. It is a better device for sealing high-temperature dust-containing steam and flue gas in the metallurgical steel slag industry. Description of the Drawings
[0028] The following drawings only make schematic illustrations and explanations of this application, and do not limit the scope of this application:
[0029] Figure 1 It is a schematic structural diagram of the high-temperature resistant sealing stacked door for steel slag treatment in the embodiment of this application;
[0030] Figure 2 It is a schematic structural diagram of the curtain of the high-temperature resistant sealing stacked door for steel slag treatment in the embodiment of this application.
[0031] Figure 3 It is a structural diagram of the control circuit of the high-temperature resistant sealing stacked door for steel slag treatment in the embodiment of this application. Detailed Description of the Embodiment
[0032] For a clearer understanding of the technical features, objectives, and effects of the utility model, the specific implementation manners of the utility model will now be described with reference to the accompanying drawings. The same reference numerals denote the same parts in the drawings.
[0033] In this document, "schematic" means "serving as an example, instance, or illustration". Any illustration or implementation manner described as "schematic" in this document should not be construed as a more preferred or more advantageous technical solution.
[0034] To simplify the drawings, only the parts related to the utility model are schematically shown in each drawing, and do not represent the actual structure of the product. Additionally, to simplify the drawings for easier understanding, for components with the same structure or function in some drawings, only one of them is schematically illustrated, or only one of them is labeled.
[0035] In this document, "upper", "lower", "front", "rear", "left", "right", etc. are only used to represent the relative positional relationship between relevant parts, rather than limiting the absolute positions of these relevant parts.
[0036] In this document, "first", "second", etc. are only used for distinction from each other, rather than indicating importance, order, or a prerequisite for mutual existence, etc.
[0037] In this document, "equal", "same", etc. are not strict mathematical and / or geometric limitations, and also include errors that can be understood by those skilled in the art and are allowed in manufacturing or using, etc. Unless otherwise specified, the numerical ranges in this document include not only the entire range within its two endpoints, but also several sub-ranges included therein.
[0038] Now, each exemplary embodiment will be described more fully with reference to the accompanying drawings.
[0039] As Figures 1 to 2 shown, an embodiment of the present application provides a high-temperature resistant sealed stacking door for steel slag treatment, which is used to open or close an opening of an enclosed space. The opening extends along a vertical plane. The stacking door includes:
[0040] A curtain 1, the shape of the curtain 1 is the same as the shape of the opening to close the opening. Wherein, the inner surface of the curtain 1 facing the enclosed space has a high-temperature resistant silica gel coating;
[0041] A pulling rope 2, the pulling rope 2 is connected to the curtain 1 along the vertical direction, and a plurality of pulling ropes 2 are arranged at equal intervals;
[0042] A winding drum 3, the winding drum 3 is installed on the upper edge of the opening, the pulling rope 2 is wound around the surface of the winding drum 3 in multiple turns, and the winding drum 3 rotates axially around a central axis along the horizontal direction under the drive of a driving motor 4, so as to drive the curtain 1 to stack or unfold via the pulling rope 2 to open or close the opening.
[0043] The high-temperature resistant sealing stacked door for steel slag treatment in this embodiment can be used to effectively seal the high-temperature dust-containing steam and flue gas in the dust collection hood of the metallurgical steel slag treatment process. Among them, the enclosed space has an opening. Usually, a door frame can be installed on the edge of the opening, such as Figure 1 shown. The door frame can include a vertically arranged door post a and a horizontally arranged door beam b. Among them, the opening of the enclosed space is enclosed by a pair of door posts a and the door beam b at the top. In this embodiment, the opening is closed by a flexible and foldable door curtain 1. The shape of the door curtain 1 can correspond to the opening or be slightly larger than the shape of the opening to achieve a full closure of the opening. Among them, the vertical length of the door beam 1 can be slightly larger than the length of the opening, and the horizontal width can correspond to the opening. The surface of the door curtain 1 can be provided with a high-temperature resistant silica gel layer. Preferably, double-sided silica gel cloth is used to cover the inner and outer surfaces. The silica gel layer is a high-temperature resistant and fireproof material, with a high temperature resistance of over 500 degrees. It is formed using an ultra-thin material and can be folded or stacked under external force.
[0044] In this example, a pull rope 2 is fixedly spaced from the door curtain 1, and a winding drum 3 is used to drive the pull rope 2 to roll up or down, thereby realizing the retraction or lowering of the door curtain 1 to achieve the opening or closing of the opening. Among them, a driving motor 4 can drive the forward or reverse rotation of the winding drum 3 to realize the rolling up or lowering of the pull rope 2.
[0045] The winding drum 3 is usually installed on the door beam b or above the door beam b. Usually, the door curtain 1 closes the opening from the outside of the opening to prevent the pollution of flue gas and dust.
[0046] This example can effectively seal the high-temperature dust-containing steam and flue gas in the dust collection hood of the metallurgical steel slag treatment process. The device has a compact structure, is simple and reliable, easy to operate, has adjustable speed, and low power consumption. It is a better device for sealing high-temperature dust-containing steam and flue gas in the metallurgical steel slag industry.
[0047] Among them, it includes a plurality of winding drums 3. The plurality of winding drums 3 are connected in series and arranged in sequence on the upper edge of the opening. At least two pull ropes 2 are wound on the surface of each winding drum 3. In the example as Figure 1 shown, it includes 4 winding drums 3. Both ends of each winding drum 3 are supported by bearing seats, and the plurality of winding drums 3 rotate synchronously with the driving motor 4. Three pull ropes 2 are wound on the surface of each winding drum 3, and the three pull ropes 2 are equally spaced. Among them, the pull rope 2 is made of a high-temperature resistant material, and its end is fixed on the winding drum through a fixed clamp and is wound on the outer surface of the winding drum 3 as the winding drum 3 rotates. The forward and reverse rotation of the driving motor 4 driving the winding drum 3 can realize the winding and release of the pull rope 2, thereby controlling the opening and closing of the door curtain 1. This segmented winding drum design is suitable for extra-large and extra-wide door curtains and has the advantages of stable mechanism rotation, small deformation, high synchronism, simple installation and maintenance, etc.
[0048] Further, it includes:
[0049] A first dust cover 31, the first dust cover 31 forms a sealed cavity for accommodating a plurality of drums 3, and the first dust cover 31 is installed on the upper edge of the opening.
[0050] In one embodiment, it includes:
[0051] A pair of drive motors 4, the drive motors 4 are respectively drivingly connected to two ends of the central axis of the drum 3.
[0052] Further, it includes:
[0053] A second dust cover 32, the second dust cover 32 forms a sealed cavity for accommodating the drive motor 4.
[0054] And, the drive motor 4 is drivingly connected to the central axis via a coupling 41.
[0055] In this example, the drive motor 4 drives the drum 3 via a speed reducer 42 and a coupling 41, and a pair of drive motors 4 are provided to form a dual-drive structure. When one of the drive motors 4 fails, the other can drive alone without affecting the use of the equipment and production operations. The drive motor 4 adopts a roller path motor, which can work in an environment of high temperature, high dust, and high humidity. The speed reducer 42 can adopt the form of a cycloidal pinwheel speed reducer, which has the advantages of stable rotation and low noise.
[0056] In a preferred example, as Figure 1 shown, it may include:
[0057] A first limit switch 51, the first limit switch 51 is installed on a pair of vertical edges of the opening, the position of the first limit switch 51 corresponds to the fully closed position of the curtain 1, and the drive motor 4 stops rotating in response to the detection signal of the first limit switch 51; and / or
[0058] A second limit switch 52, the second limit switch 52 is installed on a pair of vertical edges of the opening, the position of the second limit switch 52 corresponds to the fully open position of the curtain 1, and the drive motor 4 turns or stops rotating in response to the detection signal of the second limit switch 52.
[0059] Wherein, the first limit switch 51 can be implemented as an infrared limit switch, and the second limit switch 52 can be implemented as a mechanical limit switch. And, the first limit switch 51 and the second limit switch 52 can both be set as a pair of symmetrically arranged ones, respectively located at a pair of vertical edges of the opening, so that the equipment operates more safely and reliably.
[0060] In a specific example, it includes:
[0061] The guide rail 61 is installed on a pair of vertical edges of the opening, and a pair of vertical edges of the curtain 1 are respectively received in the guide rail 61;
[0062] The brush is installed in the guide rail 61 and wraps a pair of vertical edges of the curtain 1 from the inner surface and the outer surface of the curtain 1 respectively.
[0063] The brush can effectively prevent steam and dust generated during the operation of the equipment from overflowing outside the opening, and the sealing brush can effectively reduce noise and wear between the curtain 1 and the guide rail 61. Among them, the guide rail 61 is a C-shaped track, and there are rubber strips and brushes in the guide rail. Among them, the rubber strip is installed and buckled on the edge of the guide rail, and the brush is installed on the top for sealing the overflow of flue gas.
[0064] Such as Figure 1 and Figure 2 shown, including:
[0065] Multiple anti-wind pipes 62 are fixed on the surface of the curtain 1. Each group of anti-wind pipes 62 is fixedly connected to a pull rope 2. Multiple anti-wind pipes 62 in each group of anti-wind pipes 62 are arranged at equal intervals in the vertical direction on one side surface of the curtain 1.
[0066] Among them, each group of anti-wind pipes 62 includes a weight anti-wind pipe 621, and the weight anti-wind pipe 621 is located at the bottom edge of the curtain 1 in the vertical direction. The weight anti-wind pipe 621 has a weight to keep the curtain 1 in a vertically extended state. The weight anti-wind pipe can control the start and stop actions when the curtain is limited up and down by contacting the first limit switch.
[0067] Based on the structure that multiple anti-wind pipes 62 are arranged at equal intervals in the vertical direction on the curtain 1, when the pull rope 2 is wound around the surface of the reel 3 so that the natural hanging length of the pull rope 2 becomes shorter, the curtain 1 will be stacked and raised in a bellows-folded manner until the curtain 1 touches the second limit switch 52, and then the pull rope 2 is completely wound around the surface of the reel 3 and the winding stops.
[0068] The high-temperature resistant sealed stacked door for steel slag treatment in this embodiment can be controlled remotely or manually. Based on the signals of the limit switches, the driving control of the driving motor can be realized.
[0069] In the control circuit of the high-temperature resistant sealed stacked door for steel slag treatment as Figure 3 shown, when the curtain needs to be opened, two driving motors 4 are started to rotate forward in the same direction by turning on the switch. In response to the contact signal of the second limit switch, the driving motor 4 brakes to stop rotating. When the curtain needs to be closed, two driving motors 4 are started to rotate in the opposite direction in the same direction by turning off the switch until, in response to the contact signal of the first limit switch, the driving motor 4 brakes to stop rotating.
[0070] Furthermore, the frequency conversion start-up and operation of the drive motor 4 can be achieved through a frequency converter to adjust the lifting speed of the curtain 1.
[0071] This example can effectively seal the high-temperature dust-containing steam and flue gas of the dust hood in the metallurgical steel slag treatment process. The device has a compact structure, is simple and reliable, easy to operate, has adjustable speed, and low power consumption. It is a better device for sealing high-temperature dust-containing steam and flue gas in the metallurgical steel slag industry.
[0072] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of protection of the present application.
Claims
1. A high-temperature resistant sealed stacking door for steel slag treatment, characterized in that, For opening or closing an opening of an enclosed space, the opening extending along a vertical plane, the stacked door comprising: A curtain (1), the shape of the curtain (1) being consistent with the shape of the opening to close the opening, wherein the inner surface of the curtain (1) facing the enclosed space has a high-temperature resistant silicone coating; Pull ropes (2), the pull ropes (2) being connected to the curtain (1) in the vertical direction, and a plurality of the pull ropes (2) being arranged at equal intervals; A reel (3), the reel (3) being installed on the upper edge of the opening, the pull ropes (2) being wound around the surface of the reel (3) in multiple turns, and the reel (3) being axially rotated around a horizontal central axis under the drive of a drive motor (4) to drive the curtain (1) to stack or unfold via the pull ropes (2) so as to open or close the opening.
2. The high-temperature resistant sealed stacking door for steel slag treatment according to claim 1, wherein Comprising a plurality of reels (3), the plurality of reels (3) being connected in series and arranged in sequence on the upper edge of the opening, and at least two of the pull ropes (2) being wound around the surface of each reel (3).
3. The high-temperature resistant sealed stacking door for steel slag treatment according to claim 2, characterized in that, Comprising: A first dust cover (31), the first dust cover (31) forming a sealed cavity for accommodating the plurality of reels (3), and the first dust cover (31) being installed on the upper edge of the opening.
4. The high-temperature resistant sealed stacking door for steel slag treatment according to claim 1, characterized in that, Comprising: A pair of the drive motors (4), the drive motors (4) being respectively drivingly connected to two ends of the central axis of the reel (3).
5. The high-temperature resistant sealed stacking door for steel slag treatment according to claim 4, wherein Comprising: A second dust cover (32), the second dust cover (32) forming a sealed cavity for accommodating the drive motor (4).
6. The high-temperature resistant sealed stacking door for steel slag treatment according to claim 4, characterized in that, The drive motor (4) is drivingly connected to the central axis via a coupling (41).
7. The high-temperature resistant sealed stacked door for steel slag treatment according to claim 1, characterized in that, Comprising: A first limit switch (51), the first limit switch (51) being installed on a pair of vertical edges of the opening, the position of the first limit switch (51) corresponding to the fully closed position of the curtain (1), and the drive motor (4) stopping rotating in response to the detection signal of the first limit switch (51); and / or A second limit switch (52), the second limit switch (52) being installed on a pair of vertical edges of the opening, the position of the second limit switch (52) corresponding to the fully open position of the curtain (1), and the drive motor (4) turning or stopping rotating in response to the detection signal of the second limit switch (52).
8. The high-temperature resistant sealed stacking door for steel slag treatment according to claim 1, wherein, Comprising: Guide rails (61), the guide rails (61) being installed on a pair of vertical edges of the opening, and a pair of vertical edges of the curtain (1) being respectively received in the guide rails (61); Brushes, the brushes being installed in the guide rails (61) and respectively wrapping a pair of vertical edges of the curtain (1) from the inner surface and the outer surface of the curtain (1).
9. The high-temperature resistant sealed stacked door for steel slag treatment according to claim 1, characterized in that Comprising: Multiple groups of air resistance pipes (62), each group of air resistance pipes (62) being fixedly connected to one of the pull ropes (2), and a plurality of the air resistance pipes (62) in each group of air resistance pipes (62) being arranged at equal intervals on one side surface of the curtain (1).
10. The high-temperature resistant sealed stacking door for steel slag treatment according to claim 9, characterized in that, Each group of air resistance pipes (62) includes a weight air resistance pipe (621), and the weight air resistance pipe (621) is located at the bottom edge of the curtain (1) in the vertical direction.