Draining and filtering device for hot stuffy slag

Abstract

The utility model relates to the technical field of steel slag treatment, in particular to a hot stuffy slag drainage filtering device which comprises a supporting framework and is used for being detachably connected to a water drainage opening, close to a water drainage pipeline, of a pot body, and a plurality of through holes are formed in the side wall of the supporting framework; the inner filter screen is laid on the inner side of the supporting framework; the outer filter screen is laid on the outer side of the supporting framework; and the quick mounting mechanism comprises an inner clamping assembly which is arranged between the supporting framework and the inner filter screen and is used for fixing the inner filter screen, an outer clamping piece which is arranged between the supporting framework and the outer filter screen and is used for fixing the outer filter screen, and a fixing assembly which is arranged between the supporting framework and the pot body and is used for fixing the supporting framework. The device has the advantages that after steel slag is sealed, slag scale is not prone to adhering to a water drainage opening of the water drainage pipeline, and accumulated water in the tank body can be conveniently drained.

Description

Technical Field

[0001] This application relates to the field of steel slag treatment technology, and in particular to a hot slag drainage filtration device. Background Technology

[0002] Steel slag treatment is a crucial step in steel production. Compression tanks are an effective method for treating steel slag, offering advantages such as wide applicability, good stability of the treated slag, high pulverization rate, and thorough slag-iron separation. They can achieve zero slag discharge and are therefore widely used.

[0003] Currently, the pressure tank for hot-quenching steel slag mainly includes a tank body for hot-quenching, a tank cover that seals the top opening of the tank body, a flip-top device for opening and closing the tank cover, an exhaust pipe and electromagnetic exhaust valve connected to the tank body for controlling the pressure during hot-quenching, a gas monitoring device for real-time monitoring of the composition and concentration of combustible gases in the tank, a water spraying device for spraying water into the tank to promote the hot-quenching reaction of the steel slag, safety devices, a negative pressure exhaust device, and a drainage pipe for draining the water accumulated in the tank after hot-quenching. However, after the steel slag is quenched, during the drainage process, slag and scale will strongly adhere to the drain outlet of the drainage pipe and are difficult to clean. After long-term use, the drain outlet will gradually become smaller, causing subsequent drainage difficulties. Utility Model Content

[0004] In order to prevent slag from adhering to the drain outlet of the drainage pipe after the steel slag has been cured, and to facilitate the discharge of water accumulated in the tank, this application provides a hot slag drainage and filtration device.

[0005] This application provides a hot slag drainage filtration device, which adopts the following technical solution:

[0006] A hot slag drainage filtration device includes:

[0007] A support frame is provided for detachable connection to the drain outlet of the pot body near the drain pipe, and the side wall of the support frame is provided with multiple through holes.

[0008] The inner filter screen is laid inside the supporting frame;

[0009] The outer filter screen is laid on the outside of the supporting frame;

[0010] The quick-installation mechanism includes an inner clamping component disposed between the support frame and the inner filter screen for fixing the inner filter screen, an outer clamping component disposed between the support frame and the outer filter screen for fixing the outer filter screen, and a fixing component disposed between the support frame and the pot body for fixing the support frame.

[0011] By adopting the above technical solution, when the slag is drained, the slag and scale in the water are doubly intercepted by the outer and inner filter screens. The water then passes through the outer filter screen, the through holes on the support frame, and the inner filter screen in sequence before being discharged through the drainage pipe, thus preventing slag and scale from entering the drainage pipe. The double filter screen effectively prevents slag and scale from entering the drainage pipe, ensuring a smooth drainage process. Furthermore, the slag inside the pot is very heavy, and the support frame prevents the inner and outer filter screens from deforming, ensuring filtration efficiency. Additionally, the slag has high hardness, and the inner and outer filter screens are vulnerable parts. When the inner and outer filter screens are severely worn, the support frame can be quickly disassembled via a quick-release mechanism, facilitating the replacement of the inner and outer filter screens and reducing maintenance time and costs.

[0012] Optionally, the internal clamping assembly includes:

[0013] The lower support frame is fixed inside the support skeleton;

[0014] Pressure plates are set inside the support frame, and multiple plates are set and evenly spaced along the circumference. The inner and outer sides of the inner filter screen simultaneously abut against the pressure plates and the inner wall of the support frame.

[0015] The lower connecting rod is hinged at both ends between the pressure plate and the lower support frame, and at least two sets are provided along the height direction;

[0016] The movable screw is threaded to the top of the support frame, with one end located inside the support frame and the other end located outside the support frame;

[0017] The upper support frame is rotatably sleeved at one end of the movable screw located inside the support frame;

[0018] The upper connecting rod is hinged at both ends between the pressure plate and the upper support frame.

[0019] By adopting the above technical solution, in the initial state, the inner and outer sides of the inner filter screen abut against the pressure plate and the inner wall of the support frame, respectively, thus fixing the inner filter screen. When the inner filter screen needs to be replaced, the moving screw is rotated in the opposite direction, and the upper support frame rises accordingly. Through the linkage of the upper and lower connecting rods, the pressure plate moves away from the inner filter screen, releasing the pressure on the inner filter screen and making it easy to disassemble and replace. When the inner filter screen needs to be re-fixed, the operator rotates the moving screw, which drives the upper support frame to move downward. The upper support frame, through the upper connecting rod, drives the pressure plate to move towards the inner filter screen and applies pressure, thus clamping the inner filter screen. Through the linkage of the pressure plate, upper connecting rod, lower connecting rod, moving screw, and upper support frame, the inner filter screen can be firmly fixed in the support frame, and the replacement of the inner filter screen becomes simple and quick, requiring no complicated tools; only rotating the moving screw is needed to complete the disassembly and installation work.

[0020] Optionally, the movable screw has a locking nut threaded to one end outside the support frame, and the locking nut is in close contact with the top of the support frame.

[0021] By adopting the above technical solution, the anti-loosening nut is used to prevent the moving screw from loosening due to vibration or external force when it is not in operation, thereby improving the reliability and safety of the inner clamping assembly when fixing the inner filter screen.

[0022] Optionally, the pressure plate is arranged in an arc shape, with the convex surface of the arc shape facing the inner filter screen.

[0023] By adopting the above technical solution, the arc-shaped pressure plate can increase the contact area with the inner filter screen, thereby providing a more uniform pressure distribution when fixing the inner filter screen, avoiding damage or deformation of the inner filter screen caused by excessive local pressure, and the arc-shaped pressure plate has stronger impact resistance and better disperses and withstands external forces.

[0024] Optionally, the inner filter screen and the outer filter screen are integrally formed.

[0025] By adopting the above technical solutions, the one-piece molded inner and outer filter screens have higher structural strength and stability compared to the separate type, and reduce the seams between the inner and outer filter screens. At the same time, it simplifies the installation and replacement process of the inner and outer filter screens, making maintenance more convenient.

[0026] Optionally, the external clamping component is a pipe clamp sleeved on the outside of the external filter screen, and the pipe clamp is located on the side near the top of the support frame.

[0027] By adopting the above technical solution, since the inner filter screen and the outer filter screen are integrally formed, when installing the inner filter screen and the outer filter screen, the inner filter screen is clamped and fixed by the inner clamping component, while the outer filter screen is fixed by the pipe clamp. Since the connection between the inner filter screen and the outer filter screen is located at the bottom, the pipe clamp only needs to fix the outer filter screen near the top of the support frame. The process of fixing and replacing the outer filter screen is simple and convenient.

[0028] Optionally, the fixing component includes:

[0029] Connecting ears are fixed to the outside of the support frame, and multiple ears are provided and distributed at intervals along the circumference of the support frame.

[0030] A connecting bolt is provided between the connecting lug and the pot body, and the connecting bolt passes through the connecting lug and is threaded to the bottom wall of the pot body.

[0031] By adopting the above technical solution, when fixing the pot body with the fixing components, first align the hole on the connecting ear with the threaded hole on the bottom wall of the pot body, then pass the connecting bolt through the connecting ear and thread it into the threaded hole on the bottom wall of the pot body, and tighten the connecting bolt to firmly connect the support frame to the bottom wall of the pot body.

[0032] Optionally, a reinforcing annular groove is provided on the bottom wall of the pot body, and the bottom of the support frame is inserted into the reinforcing annular groove.

[0033] By adopting the above technical solution, the reinforced annular groove provides additional support points for the bottom of the support frame, reduces local stress concentration at the bottom of the support frame, and distributes the force at the bottom of the support frame more evenly, thereby enhancing the structural stability of the bottom of the support frame and making the bottom of the support frame less prone to deformation due to the huge extrusion force of the steel slag during the filtration process.

[0034] In summary, this application includes at least one of the following beneficial technical effects:

[0035] 1. The double-layer filter effectively prevents slag from entering the drainage pipe, ensuring smooth drainage. The steel slag inside the pot is quite heavy, and the support frame prevents deformation of the inner and outer filter screens, thus guaranteeing filtration efficiency. Furthermore, steel slag has high hardness, making the inner and outer filter screens vulnerable parts. When the inner and outer filter screens are severely worn, the support frame can be quickly disassembled via a quick-release mechanism, facilitating replacement of the inner and outer filter screens and reducing maintenance time and costs.

[0036] 2. Through the linkage of the pressure plate, upper connecting rod, lower connecting rod, moving screw and upper support frame in the internal clamping assembly, the internal filter screen can be firmly fixed in the support frame. On the other hand, it makes the replacement of the internal filter screen simple and quick. No complicated tools are required. The disassembly and installation can be completed by simply rotating the moving screw.

[0037] 3. Since the inner and outer filter screens are integrally formed, when installing the inner and outer filter screens, the inner filter screen is clamped and fixed by the inner clamping component, while the outer filter screen is fixed by the pipe clamp. Since the connection between the inner and outer filter screens is located at the bottom, the pipe clamp only needs to fix the outer filter screen on the side near the top of the support frame. The process of fixing and replacing the outer filter screen is simple and convenient.

[0038] 4. The reinforcing ring groove in the fixing component provides additional support points for the bottom of the support frame, reducing local stress concentration at the bottom of the support frame and distributing the force at the bottom of the support frame more evenly, thereby enhancing the structural stability of the bottom of the support frame and making the bottom of the support frame less prone to deformation due to the huge extrusion force of the steel slag during the filtration process. Attached Figure Description

[0039] Figure 1This is a schematic diagram of the hot slag drainage filtration device in this application;

[0040] Figure 2 This is a partial sectional view of the pot body;

[0041] Figure 3 This is a schematic diagram showing the structure of the quick-assembly mechanism;

[0042] Figure 4 This is a schematic diagram showing the cross-section of the supporting frame, inner filter, and outer filter.

[0043] Explanation of reference numerals in the attached drawings: 1. Pot body; 11. Reinforcing ring groove; 2. Drainage pipe; 3. Support frame; 4. Inner filter screen; 5. Outer filter screen; 6. Quick-installation mechanism; 61. Inner clamping assembly; 611. Lower support frame; 612. Column; 613. Pressure plate; 614. Lower connecting rod; 615. Moving screw; 616. Upper support frame; 617. Upper connecting rod; 618. Anti-loosening nut; 62. Outer clamping component; 63. Fixing assembly; 631. Connecting lug; 632. Connecting bolt. Detailed Implementation

[0044] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0045] This application discloses a hot slag drainage filtration device. (Refer to...) Figures 1-3 The hot slag drainage and filtration device includes a support frame 3 for detachable connection to the drain outlet of the pot body 1 near the drain pipe 2. Multiple through holes are provided on the side wall of the support frame 3. An inner filter screen 4 and an outer filter screen 5 are respectively laid on the inner and outer sides of the support frame 3. The inner filter screen 4 and the outer filter screen 5 are integrally formed. Compared with separate types, the integrally formed inner filter screen 4 and outer filter screen 5 have higher structural strength and stability, and reduce the seams between the inner filter screen 4 and the outer filter screen 5.

[0046] Reference Figure 3 and Figure 4 A quick-assembly mechanism 6 is provided between the support frame 3 and the pot body 1. The quick-assembly mechanism 6 includes an inner clamping component 61, an outer clamping component 62, and a fixing component 63. The inner clamping component 61 is disposed between the support frame 3 and the inner filter screen 4 to fix the inner filter screen 4; the outer clamping component 62 is disposed between the support frame 3 and the outer filter screen 5 to fix the outer filter screen 5; and the fixing component 63 is disposed between the support frame 3 and the pot body 1 to fix the support frame 3.

[0047] When the slag is drained, the outer filter screen 5 and the inner filter screen 4 effectively intercept the slag and scale in the water. The water then passes through the outer filter screen 5, the through holes in the support frame 3, and the inner filter screen 4 before being discharged through the drain pipe 2, thus preventing slag and scale from entering the drain pipe 2. This double filtration system effectively prevents slag and scale from entering the drain pipe 2, ensuring smooth drainage. Furthermore, the slag inside the pot 1 is quite heavy, and the support frame 3 prevents the inner filter screen 4 and the outer filter screen 5 from deforming, ensuring filtration efficiency. Simultaneously, the slag has high hardness, making the inner filter screen 4 and the outer filter screen 5 vulnerable parts. When the inner filter screen 4 and the outer filter screen 5 are severely worn, the support frame 3 can be quickly disassembled via the quick-release mechanism 6, facilitating the replacement of the inner filter screen 4 and the outer filter screen 5 and reducing maintenance time and costs.

[0048] Reference Figure 3 and Figure 4 The inner clamping assembly 61 includes a lower support frame 611 fixed inside the support frame 3, which is connected to the support frame 3 via multiple columns 612. Multiple pressure plates 613 are disposed inside the support frame 3, evenly spaced circumferentially. The inner and outer sides of the inner filter screen 4 simultaneously abut against the pressure plates 613 and the inner wall of the support frame 3. At least two sets of lower connecting rods 614 are provided between the pressure plates 613 and the lower support frame 611. For example, two sets of lower connecting rods 614 are provided, arranged parallel and spaced apart along the height direction, with both ends of the lower connecting rods 614 hinged to the pressure plates 613 and the lower support frame 611, respectively. A movable screw 615 is threadedly connected to the top of the support frame 3, with one end of the movable screw 615 located inside the support frame 3 and the other end located outside the support frame 3.

[0049] The movable screw 615, located inside the support frame 3, has an upper support frame 616 rotatably mounted on one end. An upper connecting rod 617 is provided between the pressure plate 613 and the upper support frame 616, with both ends of the upper connecting rod 617 hinged to the pressure plate 613 and the upper support frame 616, respectively. The movable screw 615, located outside the support frame 3, has a threaded anti-loosening nut 618 threaded onto its outer end. The anti-loosening nut 618 is tightly attached to the top of the support frame 3 and is used to prevent the movable screw 615 from loosening due to vibration or external force when not in operation, thus improving the reliability and safety of the inner clamping assembly 61 when fixing the inner filter screen 4. The pressure plate 613 is an arc-shaped plate with the convex side facing the inner filter screen 4. The arc-shaped pressure plate 613 is used to increase the contact area with the inner filter screen 4, thereby providing a more uniform pressure distribution when fixing the inner filter screen 4, avoiding damage or deformation of the inner filter screen 4 caused by excessive local pressure, and the arc-shaped pressure plate 613 has stronger impact resistance and better disperses and withstands external forces.

[0050] In the initial state, the inner and outer sides of the inner filter screen 4 abut against the pressure plate 613 and the inner wall of the support frame 3, respectively, thus fixing the inner filter screen 4. When the inner filter screen 4 needs to be replaced, the moving screw 615 is rotated in the opposite direction, and the upper support frame 616 rises accordingly. Through the linkage of the upper connecting rod 617 and the lower connecting rod 614, the pressure plate 613 moves away from the inner filter screen 4, releasing the pressure on the inner filter screen 4, making the inner filter screen 4 removable for easy replacement. When the inner filter screen 4 needs to be re-fixed, the operator rotates the moving screw 615, which drives the upper support frame 616 downward. The upper support frame 616, through the upper connecting rod 617, drives the pressure plate 613 to move towards the inner filter screen 4 and apply pressure, thus clamping the inner filter screen 4. Through the linkage of the pressure plate 613, the upper connecting rod 617, the lower connecting rod 614, the moving screw 615 and the upper support frame 616, the inner filter screen 4 can be firmly fixed in the support frame 3. On the other hand, it makes the replacement of the inner filter screen 4 simple and quick, without the need for complicated tools. The disassembly and installation can be completed by simply rotating the moving screw 615.

[0051] Reference Figure 3 and Figure 4 The outer clamp 62 is a pipe clamp fitted onto the outside of the outer filter screen 5, located near the top of the support frame 3. Since the inner filter screen 4 and the outer filter screen 5 are integrally formed, when installing the inner filter screen 4 and the outer filter screen 5, the inner filter screen 4 is clamped and fixed by the inner clamp component 61, while the outer filter screen 5 is fixed by the pipe clamp. Because the connection between the inner filter screen 4 and the outer filter screen 5 is located below, the pipe clamp only needs to fix the outer filter screen 5 near the top of the support frame 3, making the process of fixing and replacing the outer filter screen 5 simple and convenient.

[0052] Reference Figure 3 and Figure 4 The fixing component 63 includes multiple connecting ears 631 fixed to the outside of the support frame 3, which are spaced apart circumferentially along the support frame 3. Connecting bolts 632 are provided between the connecting ears 631 and the pot body 1, and the connecting bolts 632 pass through the connecting ears 631 and are threadedly connected to the bottom wall of the pot body 1. A reinforcing annular groove 11 is formed in the bottom wall of the pot body 1, and the bottom of the support frame 3 is inserted into the reinforcing annular groove 11.

[0053] When fixing the pot body 1 using the fixing component 63, first insert the bottom of the support frame 3 into the reinforcing ring groove 11. Then, rotate the support frame 3 to align the hole on the connecting ear 631 with the threaded hole on the bottom wall of the pot body 1. Subsequently, pass the connecting bolt 632 through the connecting ear 631 and thread it into the threaded hole on the bottom wall of the pot body 1. Tighten the connecting bolt 632 to firmly connect the support frame 3 to the bottom wall of the pot body 1. The reinforcing ring groove 11 provides additional support points for the bottom of the support frame 3, reducing local stress concentration at the bottom of the support frame 3 and distributing the force on the bottom of the support frame 3 more evenly. This enhances the structural stability of the bottom of the support frame 3 and makes it less likely for the bottom of the support frame 3 to deform due to the huge extrusion force of the steel slag during the filtration process.

[0054] The implementation principle of the hot slag drainage filtration device in this application embodiment is as follows: When the slag is drained after slag filling, the slag and scale in the water are doubly intercepted by the outer filter screen 5 and the inner filter screen 4. The water then passes through the outer filter screen 5, the through holes on the support frame 3, and the inner filter screen 4 in sequence and is discharged through the drainage pipe 2, thus preventing slag and scale from entering the drainage pipe 2. The double filter screen effectively prevents slag and scale from entering the drainage pipe 2, thereby ensuring a smooth drainage process. In addition, the slag inside the pot 1 is very heavy, and the support frame 3 is used to prevent the inner filter screen 4 and the outer filter screen 5 from deforming, thereby ensuring filtration efficiency. At the same time, the slag has high hardness, and the inner filter screen 4 and the outer filter screen 5 are vulnerable parts. When the inner filter screen 4 and the outer filter screen 5 are severely worn, the support frame 3 can be quickly disassembled by the quick-installation mechanism 6, which facilitates the replacement of the inner filter screen 4 and the outer filter screen 5, reducing maintenance time and costs.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hot slag drainage filtration device, characterized in that, include: A support frame (3) is used to be detachably connected to the drain outlet of the pot body (1) near the drain pipe (2). The side wall of the support frame (3) is provided with multiple through holes. The inner filter screen (4) is laid inside the support frame (3); The outer filter screen (5) is laid on the outside of the support frame (3); The quick-installation mechanism (6) includes an inner clamping component (61) disposed between the support frame (3) and the inner filter screen (4) for fixing the inner filter screen (4), an outer clamping component (62) disposed between the support frame (3) and the outer filter screen (5) for fixing the outer filter screen (5), and a fixing component (63) disposed between the support frame (3) and the pot body (1) for fixing the support frame (3).

2. The hot slag drainage filtration device according to claim 1, characterized in that, The inner clamping assembly (61) includes: The lower support frame (611) is fixed inside the support frame (3); The pressure plate (613) is set inside the support frame (3), and multiple plates are set and evenly spaced along the circumference. The inner and outer sides of the inner filter screen (4) simultaneously abut against the pressure plate (613) and the inner wall of the support frame (3). The lower connecting rod (614) is hinged at both ends between the pressure plate (613) and the lower support frame (611), and at least two sets are provided along the height direction; The movable screw (615) is threaded to the top of the support frame (3), with one end located inside the support frame (3) and the other end located outside the support frame (3); The upper support frame (616) is rotatably sleeved on one end of the movable screw (615) located inside the support frame (3); The upper connecting rod (617) is hinged at both ends between the pressure plate (613) and the upper support frame (616).

3. The hot slag drainage filtration device according to claim 2, characterized in that, The movable screw (615) is threaded with a lock nut (618) at one end outside the support frame (3), and the lock nut (618) is in close contact with the top of the support frame (3).

4. The hot slag drainage filtration device according to claim 2, characterized in that, The pressure plate (613) is arranged in an arc shape, with the convex surface of the arc plate facing the inner filter screen (4).

5. A hot slag drainage filtration device according to claim 2, characterized in that, The inner filter (4) and the outer filter (5) are integrally formed.

6. A hot slag drainage filtration device according to claim 5, characterized in that, The external clamp (62) is a tube clamp sleeved on the outside of the external filter screen (5), and the tube clamp is located on the side near the top of the support frame (3).

7. A hot slag drainage filtration device according to any one of claims 1-6, characterized in that, The fixing component (63) includes: Connecting ears (631) are fixed on the outside of the support frame (3), and multiple ears are provided and distributed at intervals along the circumference of the support frame (3); A connecting bolt (632) is provided between the connecting lug (631) and the pot body (1), and the connecting bolt (632) passes through the connecting lug (631) and is threaded to the bottom wall of the pot body (1).

8. A hot slag drainage filtration device according to claim 7, characterized in that, The bottom wall of the pot body (1) is provided with a reinforcing ring groove (11), and the bottom of the support frame (3) is inserted into the reinforcing ring groove (11).

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