Dust hood and dry quenching equipment
By designing a dust hood in the dry quenching equipment, which includes a hood body, maintenance opening, and flue gas baffle, the problems of complex maintenance of leaks in the pre-storage chamber venting pipe and the hazards of sulfur-containing gases are solved, achieving convenient maintenance and improved safety.
Patent Information
- Application Number
- CN202422807634.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-18
AI Technical Summary
In existing dry quenching equipment, the weld between the pre-storage chamber vent pipe and the water seal tank is prone to leakage, making maintenance complex and causing health damage to workers who inhale sulfur-containing gases.
Design a dust collection hood, comprising a hollow hood body, a pipe inlet, a flue gas outlet, a maintenance opening, and a flue gas baffle. The interior of the hood body forms a containment space, the flue gas baffle prevents the escape of sulfur-containing gases, and the maintenance opening facilitates direct maintenance and reduces cutting steps.
It simplifies the maintenance process of water seal tanks, reduces the risk of workers inhaling sulfur-containing gases, and improves the safety and efficiency of maintenance.
Smart Images
Figure CN223505865U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dry quenching equipment, and in particular to a dust suction hood and dry quenching equipment. Background Technology
[0002] The dry quenching coke oven body is divided into seven sections: the first section consists of an upper and lower gas chamber; the second section is the cooling section; the third section is the inclined section; the fourth section is the circulating gas duct; the fifth section is the middle bolt layer; the sixth section is the pre-storage chamber; and the seventh section is the furnace top water seal trough. The pre-storage chamber section is equipped with a pre-storage chamber vent pipe to ensure that the working pressure of the pre-storage chamber section is between -100Pa and 0Pa during operation. A water seal trough is installed at the end of the pre-storage chamber vent pipe to discharge the flue gas from the pre-storage chamber. Adjacent to the pre-storage chamber vent pipe is a circulating fan vent pipe for discharging sulfur-containing gases. A dust collection hood is installed above the pre-storage chamber vent pipe and the circulating fan vent pipe, with a pipe inlet at one end and a flue gas outlet at the other. The pre-storage chamber vent trough is located inside the dust collection hood to confine the flue gas discharged from the pre-storage chamber vent duct within the dust collection hood and discharge it through the flue gas outlet. Inside the dust collection hood, sulfur-containing gases discharged from the vent duct after the circulating fan will escape to the side of the pre-storage chamber vent duct inside the dust collection hood.
[0003] Because the pre-storage chamber's venting water seal tank and venting pipe are connected by welding, there are many weld points, making leakage prone to occur. When the water seal tank leaks, it needs to be repaired. The specific repair method involves cutting the dust extraction hood on the water seal tank side, exposing the water seal tank. While this allows repair workers to access the water seal tank, cutting the dust extraction hood is complex and increases the difficulty of maintenance. Furthermore, when repair workers enter the dust extraction hood through the cut opening, they will inhale sulfur-containing gases discharged from the venting pipe behind the circulating fan, potentially causing health risks. Utility Model Content
[0004] The purpose of this utility model embodiment is to provide a dust extraction hood and dry quenching equipment to solve the technical problems of high maintenance difficulty and health damage to maintenance workers caused by inhaling sulfur-containing gases. The specific technical solution is as follows:
[0005] This utility model embodiment provides a vacuum cleaner cover, which includes: a hollow cover body;
[0006] One end of the hood is provided with a pipe inlet; the other end of the hood is provided with a flue gas outlet; the flue gas outlet is arranged opposite to the pipe inlet; a receiving space is formed between the hood, the pipe inlet and the flue gas outlet;
[0007] The side wall of the cover is provided with a maintenance opening;
[0008] A flue gas baffle is provided inside the enclosure along the direction in which the pipe inlet and the flue gas outlet pass through.
[0009] In some embodiments of this invention, the dust hood further includes a maintenance door for closing the maintenance opening.
[0010] In some embodiments of this utility model, the maintenance door is a single-door structure or a double-door structure.
[0011] In some embodiments of this utility model, the two sides of the flue gas baffle are attached to the side wall of the cover.
[0012] In some embodiments of this utility model, the end of the flue gas baffle that is away from the flue gas outlet is not higher than the pipe inlet.
[0013] This utility model embodiment also provides a dry quenching coke device, which includes:
[0014] A pre-storage chamber vent pipe, wherein a water seal trough is provided at the outlet end of the pre-storage chamber vent pipe;
[0015] A vent pipe is provided after the circulating fan, and the vent pipe of the pre-storage chamber is arranged in parallel with the vent pipe of the circulating fan.
[0016] The dust collection hood has the outlet end of the pre-storage chamber vent pipe and the outlet end of the circulating fan vent pipe located within the hood's accommodating space.
[0017] The inlet of the dust hood is lower than the lower end of the water seal trough;
[0018] The fume baffle of the dust hood is located between the pre-storage chamber vent pipe and the circulating fan rear vent pipe;
[0019] The maintenance opening of the dust hood is located at the corresponding position of the pre-storage chamber vent pipe;
[0020] A dust removal duct is connected to the flue gas outlet.
[0021] In some embodiments of the utility model, a dry quenching body is provided, and a dry quenching body platform is arranged around the periphery of the dry quenching body.
[0022] The end of the flue gas baffle away from the flue gas outlet is fixed to the dry quenching coke body platform.
[0023] In some embodiments of the utility model, the end of the flue gas baffle near the dust removal pipe is at least 250 mm higher than the outlet of the pre-storage chamber vent pipe.
[0024] This utility model provides a dust collection hood and a dry quenching device incorporating it. A maintenance opening is provided at the lower part of the dust collection hood, corresponding to the pre-storage chamber vent pipe. When a leak occurs in the water seal tank, workers can directly repair the water seal tank through the maintenance opening, reducing the need for cutting steps during repairs. Furthermore, the flue gas baffle installed inside the dust collection hood effectively prevents sulfur-containing gases discharged from the vent pipe after the circulating fan from escaping to the pre-storage chamber vent pipe requiring repair, thereby mitigating health problems caused by sulfur-containing gases affecting workers.
[0025] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0026] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0027] Figure 1 A schematic diagram of the structure of the dust hood provided by this utility model;
[0028] Figure 2 for Figure 1 A cross-sectional view of the dust hood shown;
[0029] Figure 3 A structural diagram showing the dust hood provided by this utility model with a maintenance door;
[0030] Figure 4 for Figure 1 A top view of the vacuum cleaner hood shown;
[0031] Figure 5 A schematic diagram of the dry quenching equipment provided by this utility model;
[0032] Figure 6 for Figure 5 A magnified view of the portion shown in M1;
[0033] Figure 7 This utility model provides a schematic diagram of the dry quenching equipment when the flue gas baffle is fixedly connected to the dry quenching body platform.
[0034] Figure 8 for Figure 7 A magnified view of the portion shown in M2.
[0035] Figure label:
[0036] 1. Dust hood, 11. Hollow hood body, 111. Maintenance opening, 12. Pipe inlet, 13. Smoke outlet, 14. Smoke baffle, 15. Maintenance door;
[0037] Dry quenching equipment 2, pre-storage chamber vent pipe 21, water seal tank 211, circulating fan vent pipe 22, dry quenching body 23, dry quenching body platform 231, heat pipe heat exchanger 24, dust removal pipe 3, height H. Detailed Implementation
[0038] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art based on this application are within the protection scope of the present utility model.
[0039] This utility model provides a dust collection cover 1, such as Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the structure of the dust cover 1 provided by this utility model; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the dust hood 1. The dust hood 1 includes: a hollow hood body 11; a pipe inlet 12 at one end of the hood body; a smoke outlet 13 at the other end of the hood body; the smoke outlet 13 and the pipe inlet 12 are arranged opposite to each other; a receiving space is formed between the hood body 11, the pipe inlet 12 and the smoke outlet 13; a maintenance opening 111 is provided on the side wall of the hood body 11; and a smoke baffle 14 is provided in the receiving space inside the hood body 11 along the direction through which the pipe inlet 12 and the smoke outlet 13 pass.
[0040] In this embodiment, a pipe inlet 12 is provided at one end of the hollow cover 11 of the dust collection hood 1, allowing the pre-storage chamber vent pipe 21 and the circulating fan vent pipe 22 to enter the interior of the cover 11 of the dust collection hood 1. Simultaneously, a smoke outlet 13 at the other end of the cover 11 is used to exhaust the smoke inside the cover 11. The smoke outlet 13 is positioned opposite to the pipe inlet 12, reducing the flow path of the smoke inside the cover 11. See also... Figure 2 During the flue gas flow process, the flue gas is discharged through the outlet end of the pre-storage chamber vent pipe 21 and the circulating fan rear vent pipe 22. The hood 11 restricts the flue gas discharged from the pre-storage chamber vent pipe 21 and the circulating fan rear vent pipe 22 inside the hood 11, so that the flue gas will not escape. Under the action of negative pressure, the flue gas flows towards the flue gas outlet 13 and finally, it is discharged from the dust collection hood 1 through the flue gas outlet 13.
[0041] Also see Figure 1A maintenance opening 111 is provided at the lower part of the dust hood 1, corresponding to the pre-storage chamber vent pipe 21. When a leak occurs in the water seal tank 211, personnel can directly repair it through the maintenance opening 111, reducing the need for cutting during repairs. Simultaneously, because the dust hood 1 is under negative pressure, and flue gas is only vented through the pre-storage chamber vent pipe 21 when the pressure inside the pre-storage chamber is high, most of the flue gas is unlikely to escape through the maintenance opening 111. Therefore, the maintenance opening 111 on the dust hood 1 will not allow flue gas discharged from the vent pipe during the venting process to escape through the maintenance opening 111.
[0042] In addition, the flue gas baffle 14 installed in the dust hood 1 can effectively prevent sulfur-containing gas discharged from the vent pipe 22 after the circulating fan from escaping to the vent pipe 21 of the pre-storage room that needs maintenance, thereby improving the health problems caused by sulfur-containing gas on the staff.
[0043] In actual production, the maintenance opening 111 can also be set in other locations of the dust hood 1 (e.g., the side of the hood 11 away from the circulating fan and the vent pipe 22), as long as it allows the staff to directly enter the dust hood 1 to maintain the vent pipe 21 of the storage chamber.
[0044] In some embodiments of this utility model, see Figure 3 , Figure 3 This is a structural diagram of the dust hood 1 provided by this utility model with a maintenance door. The dust hood 1 also includes a maintenance door 15 for closing the maintenance opening 111. The maintenance door 15 can be a single door or a double door.
[0045] In this embodiment, a maintenance door 15 is provided at the corresponding position of the maintenance opening 111 on the hood 11. When staff need to enter the vacuum hood 1 for maintenance, they can directly access the water seal groove 211 by opening the maintenance door. The presence of the maintenance door 15 at the corresponding position of the maintenance opening 111 further improves the situation of smoke escaping from inside the vacuum hood 1.
[0046] See Figure 3 The maintenance door 15 adopts a single-door structure. In actual production, a double-door structure can also be adopted, as long as the maintenance opening 111 can be closed.
[0047] In some embodiments of this utility model, such as Figure 2 and Figure 4 As shown, Figure 4 for Figure 1 The image shows a top view of the dust collection hood 1. The two sides of the fume baffle 14 are attached to the side walls of the hood 11. The end of the fume baffle 14 furthest from the fume outlet 13 is not higher than the duct inlet 12.
[0048] In this embodiment, the two sides of the flue gas baffle 14 are attached to the side wall of the hood 11 to prevent the sulfur-containing gas discharged from the vent pipe 22 after the circulating fan from escaping to the side of the pre-storage chamber vent pipe 21 through the gap between the flue gas baffle 14 and the side wall of the hood 11, thereby causing adverse effects on the health of the staff.
[0049] The end of the flue gas baffle 14 away from the flue gas outlet 13 is not higher than the pipe inlet 12, making it difficult for the sulfur-containing gas discharged from the vent pipe 22 after the circulating fan to escape to the side of the vent pipe 21 of the pre-storage chamber through the bottom of the flue gas baffle 14, thus adversely affecting the health of the staff.
[0050] In actual production, the flue gas baffle 14 can be fixed to the side wall of the hood 11 by welding; it can also be detachably installed on the side wall of the hood 11 by snap-fit; or it can be suspended inside the hood. As long as the flue gas baffle 14 can prevent the sulfur-containing flue gas discharged from the vent pipe 22 after the circulating fan from escaping to one side of the vent pipe 21 in the pre-storage chamber during use, it is acceptable.
[0051] This utility model also provides a dry quenching coke device, such as... Figure 5 and Figure 6 As shown, Figure 5 A schematic diagram of the dry quenching equipment provided by this utility model; Figure 6 for Figure 5 The enlarged view shown in M1 shows the dry quenching equipment, which includes: a pre-storage chamber vent pipe 21, with a water seal trough 211 at the outlet end of the pre-storage chamber vent pipe 21; a circulating fan rear vent pipe 22, which is arranged parallel to the pre-storage chamber vent pipe 21; a dust collection hood 1 as described in any of the above embodiments, with the outlet ends of the pre-storage chamber vent pipe 21 and the circulating fan rear vent pipe 22 located within the accommodating space of the hood body 11; the pipe inlet 12 of the dust collection hood 1 being lower than the lower end of the water seal trough 211; the flue gas baffle 14 of the dust collection hood 1 located between the pre-storage chamber vent pipe 21 and the circulating fan rear vent pipe 22; the maintenance opening 111 of the dust collection hood 1 located at the corresponding position of the pre-storage chamber vent pipe 21; and a dust removal pipe 3 connected to the flue gas outlet 13.
[0052] In this embodiment, the vent pipe 22 after the circulating fan and the vent pipe 21 after the pre-storage chamber are arranged side by side in the containment space formed by the cover body 11 inside the dust collection hood 1. The pipe inlet 12 of the dust collection hood 1 is lower than the lower end of the water seal trough 211, so that the flue gas discharged from the vent pipe 21 after the pre-storage chamber and the vent pipe 22 after the circulating fan is confined within the containment space formed by the cover body 11 and will not escape from the pipe inlet 12.
[0053] Meanwhile, the flue gas baffle 14 of the dust hood 1 is set in the interval area between the pre-storage chamber vent pipe 21 and the circulating fan rear vent pipe 22. The flue gas baffle 14 can effectively block the sulfur-containing gas discharged from the circulating fan rear vent pipe 22 from escaping to the pre-storage chamber vent pipe 21 that needs maintenance, thereby improving the health problems caused by sulfur-containing gas affecting the staff.
[0054] In addition, see Figure 6 A maintenance opening 111 is provided at the lower part of the dust hood 1, corresponding to the position of the pre-storage chamber vent pipe 21, and a maintenance door 15 is provided at the corresponding position of the maintenance opening 111. When the water seal tank 211 leaks, the staff can open the maintenance door 15 to directly repair the water seal tank 211, reducing the cutting steps during repair.
[0055] The flue gas outlet 13 of the dust collection hood 1 is connected to the dust removal pipe 3, so that the flue gas in the dust collection hood 1 flows into the heat storage cooler (not shown in the figure) through the dust removal pipe for subsequent cooling and dust removal steps.
[0056] In some embodiments of this utility model, such as Figure 7 and Figure 8 As shown, Figure 7 This is a schematic diagram of the dry quenching equipment provided by this utility model when the flue gas baffle is fixedly connected to the dry quenching body platform. Figure 8 for Figure 7 The enlarged view shown in M2. The dry quenching equipment 2 also includes: a dry quenching body 23 and a heat pipe heat exchanger 24. A dry quenching body platform 231 is arranged around the periphery of the dry quenching body 23; the end of the flue gas baffle 14 away from the flue gas outlet 13 is fixed to the dry quenching body platform 231.
[0057] In this embodiment, the pre-storage chamber vent pipe 21 is connected to the dry quenching body 23. When the pressure inside the dry quenching body 23 is too high, the flue gas is discharged through the pre-storage chamber vent pipe 21 and enters the dust collection hood 1. Inside the dust collection hood 1, the flue gas flows toward the flue gas outlet 13 and enters the dust removal pipe 3 through the flue gas outlet 13.
[0058] The vent pipe 22 after the circulating fan is connected to the heat pipe heat exchanger 24. The sulfur-containing gas in the heat pipe heat exchanger 24 is discharged through the vent pipe after the circulating fan and enters the dust collection hood 1. Inside the dust collection hood 1, the sulfur-containing gas flows toward the flue gas outlet 13 and enters the dust removal pipe 3 through the flue gas outlet 13.
[0059] In this embodiment, a dry quenching body platform 231 is arranged around the periphery of the dry quenching body 23. The end of the flue gas baffle 14 of the dust collection hood 1 away from the flue gas outlet 13 extends to the dry quenching body platform 231 and is fixed to the dry quenching body platform 231, so that the sulfur-containing gas is difficult to escape through the lower end of the flue gas baffle 14 to one side of the pre-storage chamber vent pipe 21, and also provides support for the dust collection hood 1.
[0060] In some embodiments of this application, such as Figure 1 and Figure 2 As shown, the end of the flue gas baffle 14 near the dust removal pipe 3 is at least 250 mm higher than the outlet of the pre-storage chamber vent pipe 21.
[0061] The end of the flue gas baffle 14 near the dust removal pipe 3 is at least 250 mm higher than the outlet of the pre-storage chamber vent pipe 21, making it difficult for sulfur-containing gas to escape from the upper end of the flue gas baffle 14 to one side of the pre-storage chamber vent pipe 21.
[0062] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.
Claims
1. A vacuum cleaner hood, characterized in that, include: Hollow enclosure (11); One end of the cover is provided with a pipe inlet (12); the other end of the cover is provided with a flue gas outlet (13); the flue gas outlet (13) is arranged opposite to the pipe inlet (12); a receiving space is formed between the cover (11), the pipe inlet (12) and the flue gas outlet (13); The side wall of the cover (11) is provided with a maintenance opening (111). A flue gas baffle (14) is provided inside the hood (11) along the direction through which the pipe inlet (12) and the flue gas outlet (13) pass.
2. The dust cover according to claim 1, characterized in that, The dust hood (1) also includes a maintenance door (15) for closing the maintenance opening (111).
3. The dust cover according to claim 2, characterized in that, The maintenance door (15) is a single-door structure or a double-door structure.
4. The dust cover according to claim 1, characterized in that, The two sides of the flue gas baffle (14) are attached to the side wall of the cover (11).
5. The dust cover according to claim 1, characterized in that, The end of the flue gas baffle (14) away from the flue gas outlet (13) is not higher than the pipe inlet (12).
6. A dry quenching coke device, characterized in that, include: The pre-storage chamber vent pipe (21) is provided with a water seal trough (211) at its outlet end. The circulating fan exhaust pipe (22) is arranged in parallel with the pre-storage chamber exhaust pipe (21); According to any one of claims 1-5, the outlet end of the pre-storage chamber vent pipe (21) and the outlet end of the circulating fan rear vent pipe (22) are disposed within the accommodating space of the cover body (11). The pipe inlet (12) of the dust hood (1) is lower than the lower end of the water seal trough (211); The smoke baffle (14) of the dust hood (1) is located between the pre-storage chamber vent pipe (21) and the circulating fan rear vent pipe (22); The maintenance opening (111) of the dust hood (1) is located at the corresponding position of the pre-storage chamber vent pipe (21); Dust removal pipe (3) is connected to flue gas outlet (13).
7. The dry quenching equipment according to claim 6, characterized in that, The dry quenching equipment (2) also includes: Dry quenching body (23), and a dry quenching body platform (231) is arranged around the periphery of the dry quenching body (23). The end of the flue gas baffle (14) away from the flue gas outlet (13) is fixed to the dry quenching body platform (231).
8. The dry quenching equipment according to claim 6, characterized in that, The end of the flue gas baffle (14) near the dust removal pipe (3) is at least 250 mm higher than the outlet of the pre-storage chamber vent pipe (21).