Coking cleaning device for uptake flue of side-blown converter

Abstract

The utility model discloses a coking cleaning device for an uptake flue of a side-blown converter, which is applied to the uptake flue, a water jacket is fixedly sleeved outside the uptake flue, a first hole and a second hole are arranged on the water jacket, the first hole and the second hole are both communicated with the inside of the uptake flue, and the first hole and the second hole are communicated with the inside of the uptake flue. Two groups of mounting seats are fixedly connected to the exterior of the water jacket, cover plates are rotatably mounted on the two groups of mounting seats, the positions of the two groups of cover plates correspond to the first hole and the second hole respectively, and a locking mechanism is further arranged on the water jacket. According to the utility model, the first hole and the second hole with proper sizes are arranged at the proper height of the water jacket, and the sizes of the holes are maximized on the premise of ensuring the safety of a water pipe, so that physical decoking facilities such as a steel chisel and a small-sized breaking hammer can pass through the holes sufficiently, the sufficient working surface is ensured, and the decoking operation of field operators is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of side-blown furnace rising flue equipment, specifically to a coking cleaning device for the rising flue of a side-blown furnace. Background Technology

[0002] The oxygen-enriched side-blown smelting furnace is a smelting equipment for producing copper matte, mainly composed of a fixed furnace and an ascending flue.

[0003] The rising flue cools the flue gas through water circulation within the water jacket. After long-term operation of the side-blown furnace (with a major overhaul every two years), the large volume of flue gas from prolonged high-load production leads to increased adhesion, making direct cleaning of the flue during routine inspections impossible. The usual method is to drill holes in the water jacket and then blast the adhesion onto the inner wall of the flue. However, due to limitations in the original water jacket pipe layout, only 80mm holes can be drilled in the water jacket, resulting in insufficient cleaning surface area to completely clean and blast away the adhesion, making it impossible to control the thickening of the adhesion. Furthermore, the cleaning angle prevents the blasting of some areas of adhesion, and the 80mm hole is insufficient for cleaning needs. Utility Model Content

[0004] To address the technical problem that existing methods for cleaning coking surfaces in rising flues are insufficient and cannot completely clean them, this utility model provides a coking cleaning device for rising flues of side-blown furnaces.

[0005] The technical solution adopted by this utility model is as follows: it is applied to the rising flue, and a water jacket is fixedly sleeved on the outside of the rising flue. The water jacket has a first hole and a second hole, both of which are connected to the inside of the rising flue. Two sets of mounting seats are fixedly connected to the outside of the water jacket. A cover plate is rotatably installed on each of the two sets of mounting seats. The positions of the two sets of cover plates correspond to the first hole and the second hole, respectively. A locking mechanism is also provided on the water jacket.

[0006] Furthermore, both the first and second holes are square holes measuring 300*300mm.

[0007] By adopting the above technical solution, the large-sized reserved holes facilitate manual cleaning of the coking on the inner wall of the rising flue.

[0008] Furthermore, the first hole is located 800 mm from the lower edge of the water jacket, and the second hole is located 1500 mm from the lower edge of the water jacket.

[0009] By adopting the above technical solution, it is convenient to clean the areas in the rising flue that are prone to coking.

[0010] Furthermore, the locking mechanism includes a locking head fixedly installed on one side of the cover plate and a connecting block fixedly installed on the outside of the water jacket. The upper end of the connecting block is provided with an installation groove, and two sets of locking blocks are slidably installed in the installation groove. The locking blocks are adapted to the locking head. A return spring is fixedly installed on one side of the locking block, and the other end of the return spring is fixedly connected to the installation groove.

[0011] By adopting the above technical solution, the sealing performance of the cover plate when sealing the first and second holes is improved.

[0012] Furthermore, a connecting plate is fixedly installed on the connecting block, a sliding groove is provided on the connecting plate, a slider is slidably installed in the sliding groove, a pressure plate is fixedly installed on the slider, and a connecting rod is movably arranged between the pressure plate and the locking block.

[0013] By adopting the above technical solution, it is easy to unlock the cover plate.

[0014] Furthermore, each of the two sets of card blocks is fixedly mounted with a fixed seat, a connecting rod is rotatably mounted on the fixed seat, and a hinge seat is rotatably mounted on the end of the connecting rod away from the fixed seat, and the hinge seat is fixedly connected to the bottom of the pressure plate.

[0015] By adopting the above technical solution, the connecting rod can be movably installed between the pressure plate and the locking block.

[0016] Furthermore, the card block has a guide hole, in which a guide rod is slidably installed. One end of the guide rod is fixedly installed in the mounting groove, and the reset spring is sleeved on the outside of the guide rod.

[0017] By adopting the above technical solution, the stability of the card block during movement is improved.

[0018] Furthermore, an asbestos block is fixedly installed on one side of both sets of cover plates.

[0019] By adopting the above technical solution, asbestos blocks are used to seal the first and second holes, thereby improving the insulation effect.

[0020] The beneficial effects of this utility model are: by opening the first hole and the second hole of appropriate size at the appropriate height of the water jacket, the size of the opening is maximized while ensuring the safety of the water pipe. It is sufficient to allow the passage of physical descaling facilities such as steel bars and small breakers, ensuring a sufficient working surface and facilitating the descaling operation of on-site personnel. Moreover, the height is appropriate, which can meet the needs of daily inspection, blasting drilling, and working surface, while also avoiding damage to the water jacket caused by being too close during blasting operations.

[0021] With the cover plate, along with the clamp, clamp, and return spring, the cover plate can automatically lock onto the water jacket when the first and second holes are closed, improving the stability during the closure. The connecting plate, along with the slider, hinge seat, connecting rod, and fixing seat, facilitates the release of the cover plate's lock to open the first and second holes during coking cleanup operations, improving the ease of use of the device. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a cross-sectional structural diagram of the water jacket in this utility model;

[0024] Figure 3 Appendix of this utility model Figure 2 Enlarged view of point A;

[0025] Figure 4 This is a schematic diagram of the internal structure of the mounting groove in this utility model;

[0026] Figure 5 This is a schematic diagram of the assembly of the card block and the connecting block in this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the first hole in the open state in this utility model.

[0028] The following are the labels in the diagram: 1. Rising flue; 2. Water jacket; 3. First hole; 4. Second hole; 5. Mounting base; 6. Cover plate; 7. Clip; 8. Connecting block; 9. Mounting groove; 10. Clip block; 11. Return spring; 12. Guide hole; 13. Guide rod; 14. Fixed base; 15. Connecting rod; 16. Slide groove; 17. Sliding block; 18. Pressure plate; 19. Hinge base; 20. Asbestos block; 21. Connecting plate. Detailed Implementation

[0029] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The following is in conjunction with the appendix Figure 1-6 The present invention will be further described below.

[0032] To address the problems existing in the background technology, this application proposes the following technical solution: A water jacket 2 is fixedly fitted onto the outside of a rising flue 1. The water jacket 2 has a first hole 3 and a second hole 4, both of which are connected to the interior of the rising flue 1. Two sets of mounting seats 5 are fixedly connected to the outside of the water jacket 2. A cover plate 6 is rotatably mounted on each of the two sets of mounting seats 5. The positions of the two sets of cover plates 6 correspond to the first hole 3 and the second hole 4, respectively. A locking mechanism is also provided on the water jacket 2.

[0033] The rising flue 1 is located at the tail of the side-blown furnace and serves as the exhaust outlet for the flash furnace flue gas. It connects to the inlet of the waste heat boiler. The rising flue 1 has pre-drilled holes corresponding to the first hole 3 and the second hole 4, connecting them to the interior of the rising flue 1. When it is necessary to clean the coking on the inner wall of the rising flue 1, the cover plate 6 is rotated to open the first hole 3 and the second hole 4. On-site personnel can then clean the coking area using physical cleaning equipment such as steel bars and small breakers. After cleaning, the cover plate 6 is closed to keep the first hole 3 and the second hole 4 sealed, allowing the water jacket 2 to continue operating normally. During inspections of the rising flue 1, the first hole 3 and the second hole 4 can also be used as observation holes to facilitate timely monitoring of the adhesion. A locking mechanism further ensures the secure sealing of the cover plate 6.

[0034] The water jacket 2 consists of a cooling water chamber, inlet and outlet ports (not shown in the attached diagram), etc. The water jacket 2 is made of high-temperature and corrosion-resistant materials, such as copper and alloy steel, to withstand high-temperature and corrosive environments. The cooling water chamber is located inside the water jacket 2 to hold circulating cooling water. The water flow carries away the heat generated by the rising flue. The cooling water chamber is distributed around the first hole 3 and the second hole 4 to ensure the overall cooling effect of the water jacket 2. The inlet and outlet ports are located on the outside of the water jacket 2 and are used to connect the cooling water supply and discharge pipes.

[0035] To further clarify, both the first hole 3 and the second hole 4 are square holes measuring 300*300mm.

[0036] The size of the first hole 3 and the second hole 4 are reasonably designed. The opening size is maximized while ensuring the safety of the water pipe. It is large enough to allow the passage of physical descaling equipment such as steel bars and small breakers, ensuring sufficient working surface and facilitating the descaling operation of on-site personnel.

[0037] To further clarify, the first hole 3 is located 800mm from the lower edge of the water jacket 2, and the second hole 4 is located 1500mm from the lower edge of the water jacket 2.

[0038] Through long-term exploration and experience summarization, it was found that the area from the lower edge of the water jacket 2 to the upper water jacket 2 meters is an area prone to adhesion. The first hole 3 and the second hole 4 are opened at a distance of 800mm and 1500mm from the lower edge of the water jacket 2, which can meet the needs of daily inspection, blasting drilling, and working face. At the same time, it can also avoid damage to the water jacket 2 caused by being too close to it during blasting operations. The height of the first hole 3 and the second hole 4 is suitable for on-site personnel to operate.

[0039] To further explain, the locking mechanism includes a locking head 7 fixedly installed on one side of the cover plate 6 and a connecting block 8 fixedly installed on the outside of the water jacket 2. The upper end of the connecting block 8 is provided with an installation groove 9. Two sets of locking blocks 10 are slidably installed in the installation groove 9. The locking blocks 10 are adapted to the locking head 7. A return spring 11 is fixedly installed on one side of the locking block 10. The other end of the return spring 11 is fixedly connected in the installation groove 9.

[0040] After the coking and cleaning process is completed, the cover plate 6 is rotated onto the corresponding first hole 3 or second hole 4. The clamping head 7 on the cover plate 6 contacts and presses against the two sets of clamping blocks 10 in the connecting block 8. The clamping head 7 drives the two sets of clamping blocks 10 to move away from each other. The clamping blocks 10 cause the return spring 11 to compress and deform. When the clamping head 7 moves below the clamping block 10, the compressed return spring 11 pushes the clamping block 10 above the clamping head 7 to return to its initial state. The two sets of clamping blocks 10 restrict the clamping head 7 and fix it in the connecting block 8, thereby locking the cover plate 6 onto the first hole 3 or second hole 4, improving the sealing effect of the cover plate 6 on the first hole 3 and second hole 4, and ensuring the normal production and use of the rising flue 1.

[0041] Furthermore, a connecting plate 21 is fixedly installed on the connecting block 8. A sliding groove 16 is provided on the connecting plate 21. A slider 17 is slidably installed in the sliding groove 16. A pressure plate 18 is fixedly installed on the slider 17. A connecting rod 15 is movably arranged between the pressure plate 18 and the locking block 10.

[0042] When it is necessary to open the cover plate 6, press down on the pressure plate 18. The pressure plate 18 drives the connecting rod 15 to move downward. The connecting rod 15 pushes the locking block 10 to move, so that the locking block 10 is removed from the locking head 7, thereby releasing the restriction effect of the locking block 10 on the locking head 7. The cover plate 6 can be opened freely, making it convenient to release the lock on the cover plate 6 and improving the ease of use of the device.

[0043] To further explain, each of the two sets of card blocks 10 is fixedly mounted with a fixed seat 14, and a connecting rod 15 is rotatably mounted on the fixed seat 14. A hinge seat 19 is rotatably mounted on the end of the connecting rod 15 away from the fixed seat 14, and the hinge seat 19 is fixedly connected to the bottom of the pressure plate 18.

[0044] When the pressure plate 18 moves downward, it drives the hinge seat 19 to move. The hinge seat 19 drives the connecting rod 15 to move downward. The lower end of the connecting rod 15 pushes the locking block 10 to move, so that the locking block 10 is removed from the locking head 7. The connecting rod 15 is movably installed between the locking block 10 and the pressure plate 18 through the hinge seat 19 and the fixed seat 14.

[0045] Furthermore, the card block 10 has a guide hole 12, in which a guide rod 13 is slidably installed. One end of the guide rod 13 is fixedly installed in the mounting groove 9, and the reset spring 11 is sleeved on the outside of the guide rod 13.

[0046] The guide hole 12, together with the guide rod 13, guides and limits the movement of the locking block 10, so that the locking block 10 moves stably in the mounting groove 9. At the same time, the guide rod 13 also limits the return spring 11, preventing the return spring 11 from shifting during deformation and improving the stability of the device during use.

[0047] Furthermore, asbestos blocks 20 are fixedly installed on one side of both sets of cover plates 6.

[0048] During the period when the cover plate 6 seals the first hole 3 or the second hole 4, the asbestos block 20 seals the first hole 3 or the second hole 4. The asbestos block 20 has a good insulation effect and is safe and reliable.

[0049] For specific operation, please refer to the following instructions: When it is necessary to clean the coking in the rising flue 1, press down on the pressure plate 18. The pressure plate 18 drives the connecting rod 15 to move downward. The connecting rod 15 pushes the locking block 10 to move, so that the locking block 10 is removed from the locking head 7, releasing the restriction effect of the locking block 10 on the locking head 7. The cover plate 6 can be freely rotated and opened. On-site operators can use physical coking removal equipment such as steel chisels and small breakers to clean the coking area through the first hole 3 and the second hole 4. After the coking is cleaned, rotate the cover plate 6 onto the first hole 3 or the second hole 4. The locking block 10 will automatically restrict the locking head 10 and lock the cover plate 6 onto the first hole 3 or the second hole 4. After cleaning, it can be closed normally and production can continue.

[0050] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0051] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A coking cleaning device for the uptake of a side-blown furnace, characterized in that Be applied to the ascending flue (1), the outer fixed cover of the ascending flue (1) is provided with a water jacket (2), the water jacket (2) is provided with first hole (3) and second hole (4), the first hole (3) and second hole (4) are all connected with the inside of ascending flue (1), the outer fixed connection of water jacket (2) has two groups of mounting seat (5), two groups of mounting seat (5) are all rotatably installed with cover plate (6), the position of two groups of cover plate (6) corresponds first hole (3), second hole (4) respectively, the water jacket (2) is also provided with locking mechanism.

2. A coking cleaning device for the uptake of a side-blown furnace according to claim 1, characterized in that The first hole (3) and second hole (4) are both 300*300mm square holes.

3. A coking cleaning device for the uptake of a side-blown furnace according to claim 2, characterized in that The first hole (3) is provided at the position 800mm away from the lower edge of water jacket (2), and the second hole (4) is provided at the position 1500mm away from the lower edge of water jacket (2).

4. A coking cleaning device for the uptake of a side-blown furnace according to claim 3, characterized in that The locking mechanism comprises a clamping head (7) fixedly installed on one side of the cover plate (6) and a connecting block (8) fixedly installed on the outside of the water jacket (2), an installation groove (9) is formed in the upper end of the connecting block (8), two clamping blocks (10) are slidably installed in the installation groove (9), the clamping blocks (10) are matched with the clamping head (7), a reset spring (11) is fixedly installed on one side of the clamping block (10), and the other end of the reset spring (11) is fixedly connected in the installation groove (9).

5. A coking cleaning device for the uptake of a side-blown furnace according to claim 4, characterized in that The connecting block (8) is fixedly installed with a connecting plate (21), a sliding groove (16) is formed in the connecting plate (21), a sliding block (17) is slidably installed in the sliding groove (16), a pressing plate (18) is fixedly installed on the sliding block (17), and a connecting rod (15) is movably arranged between the pressing plate (18) and the clamping block (10).

6. A coking cleaning device for the uptake shaft of a side-blown converter according to claim 5, characterized in that Two clamping blocks (10) are fixedly installed with a fixing seat (14), the connecting rod (15) is rotatably installed on the fixing seat (14), a hinge seat (19) is rotatably installed on the end of the connecting rod (15) away from the fixing seat (14), and the hinge seat (19) is fixedly connected to the bottom of the pressing plate (18).

7. A coking cleaning device for the uptake shaft of a side-blown converter according to claim 6, characterized in that A guide hole (12) is formed in the clamping block (10), a guide rod (13) is slidably installed in the guide hole (12), one end of the guide rod (13) is fixedly installed in the installation groove (9), and the reset spring (11) is sleeved outside the guide rod (13).

8. A coking cleaning device for the uptake shaft of a side-blown furnace according to claim 7, characterized in that One side of the two cover plates (6) is fixedly installed with an asbestos block (20).

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