Sealing flue structure
By designing a sealed flue structure at the calcinerator smoke wellhead, changing the shape of the sealing mouth and increasing the refractory cotton, combined with the design of spring and clamping arms, the problem of poor sealing effect in the prior art is solved, improving the sealing and smoke exhaust effect of the flue, and reducing costs.
Patent Information
- Application Number
- CN202421939477.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-12
AI Technical Summary
When the existing roasting furnace smoke wellhead and the smoke exhaust rack connection part are not in use, the use of a fire-resistant pad leads to poor sealing effect, resulting in severe negative pressure leakage inside the flue, affecting the smoke exhaust effect of the flue.
A sealing flue structure is designed to increase the refractory cotton between the inner and outer rings of the sealing mouth by changing the shape of the smoke well sealing mouth, and a spring and clamping arms are provided on the sealing cover to enhance the connection tightness between the sealing cover and the smoke well entrance.
It improves the sealing effect at the entrance of the smoke well, reduces negative pressure leakage, improves the smoke exhaust effect of the flue, and effectively utilizes refractory cotton, reducing procurement costs.
Smart Images
Figure CN222992929U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of carbon production equipment, in particular to a sealed flue structure. Background Art
[0002] Carbon and graphite materials are non-metallic solid materials mainly composed of carbon elements. Among them, carbon materials are basically materials composed of non-graphitic carbon, while graphite materials are basically materials composed of graphitic carbon. Not only graphite, but also all carbon-containing materials including diamond, fullerene, and carbene are called carbon materials. During the carbon production process, a roasting furnace is required. The smoke outlet 11 of the roasting furnace is connected to the smoke exhaust rack. When not in use, a refractory pad is placed at the opening and then covered with a sealing cover.
[0003] However, when the connection part between the smoke outlet of the existing roasting furnace and the smoke exhaust rack is not in use, a refractory pad is placed at the opening and then covered with a sealing cover. Due to the insufficient softness of the refractory pad material, the sealing effect is poor, resulting in serious negative pressure leakage inside the flue and affecting the smoke exhaust effect of the flue. To solve the above problems, we propose a sealed flue structure. Summary of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] In view of the deficiencies of the prior art, the utility model provides a sealed flue structure, which has the advantages of changing the shape of the smoke well sealing port and reducing negative pressure leakage, and solves the problems that the sealing effect of the sealing cover is poor due to the use of refractory pads, resulting in serious negative pressure leakage inside the flue.
[0006] (2) Technical Solutions
[0007] To achieve the above object, the utility model provides the following technical solution: A sealed flue structure, including a flue component; the flue component includes:
[0008] A sealing port is arranged at the top of the smoke outlet, a refractory pad is arranged inside the sealing port, and a sealing cover is arranged on the sealing port;
[0009] A sealing component is arranged on the flue component, and the sealing component includes:
[0010] An outer sealing ring is arranged on the sealing port, an inner sealing ring is also arranged on the sealing port, and refractory cotton is arranged between the outer sealing ring and the inner sealing ring;
[0011] A housing is arranged on the outer side wall opposite to the outer sealing ring, an empty slot is arranged inside the housing, and a spring is arranged inside the empty slot;
[0012] The rod body is arranged on the spring. One end of the rod body is fixedly connected to the spring, and the other end is provided with a first insertion block. The sealing cover is provided with a slot for inserting and connecting with the first insertion block.
[0013] In some embodiments, the number of the housings is at least two.
[0014] In some embodiments, a chute is arranged inside the housing, a slider is arranged on the rod body, and the slider is slidably connected to the chute.
[0015] In some embodiments, a limiting block is arranged through the chute on the slider.
[0016] In some embodiments, a rotating block is arranged on the outer side wall of the opposite side of the sealing cover. A clamping arm is arranged on the rotating block. A second insertion block is arranged at the bottom of the clamping arm. A block body is arranged on the outer side wall of the outer ring of the sealing port. A slot is arranged on the block body. The second insertion block is inserted and connected with the slot.
[0017] In some embodiments, the length of the clamping arm, the height of the sealing cover and the height of the outer ring of the sealing port are the same.
[0018] In some embodiments, the first insertion block is trapezoidal.
[0019] In some embodiments, the height of the outer ring of the sealing port is flush with the height of the inner ring of the sealing port.
[0020] (III) Beneficial Effects
[0021] Compared with the prior art, the present utility model provides a sealed flue structure, which has the following beneficial effects:
[0022] 1. For this sealed flue structure, by raising the height of the inner ring of the flue opening to be flush with the height of the outer ring of the flue opening, placing a relatively soft fireproof cotton between the inner and outer rings of the improved flue opening, and then cooperating with the sealing cover to compress the fireproof cotton, the sealing effect at the flue opening is improved. At the same time, the frequency of the induced draft fan used in cooperation is reduced from the original 41 Hz to 39 Hz. In the past, the corner and small pieces of refractory cotton were directly discarded, but now they can be effectively utilized, saving the procurement cost of the refractory pad.
[0023] 2. For this sealed flue structure, by arranging a housing on the flue opening, arranging a spring inside the housing to control the insertion block to be inserted and connected with the sealing cover, making the connection between the sealing cover and the flue opening closer. At the same time, arranging a rotatable clamping arm outside the sealing cover and arranging an insertion block at the top of the clamping arm to be inserted and connected with the bottom of the flue opening, further strengthening the tightness of the connection between the sealing cover and the flue opening and improving the sealing effect of the whole device. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic structural diagram of the present utility model;
[0025] Figure 2 is the schematic diagram of the front sectional structure in the present utility model; Figure 1
[0026] Figure 3 is the schematic diagram of the improved flue duct assembly structure in the present utility model;
[0027] Figure 4 is the schematic diagram of the front sectional structure in the present utility model; Figure 3
[0028] Figure 5 is the schematic diagram of the sealing cover body structure in the present utility model;
[0029] Figure 6 is the schematic diagram of the sealing assembly structure in the present utility model;
[0030] Figure 7 is the schematic diagram of the housing assembly structure in the present utility model;
[0031] Figure 8 is the enlarged schematic diagram of part A in the present utility model;
[0032] Figure 9 is the schematic diagram of the clamping arm assembly structure in the present utility model.
[0033] In the figure:
[0034] 1. Flue duct assembly; 11. Smoke inlet; 12. Sealing port; 13. Refractory pad; 14. Sealing cover;
[0035] 2. Sealing assembly; 21. Outer ring of the sealing port; 211. Inner ring of the sealing port; 212. Refractory cotton; 22. Housing; 221. Empty slot; 222. Spring; 223. Slide groove; 224. Slide block; 225. Limit block; 23. Rod body; 231. First insert block; 24. Rotating block; 241. Clamping arm; 242. Second insert block; 25. Block; 251. Insert slot. Detailed implementation manners
[0036] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.
[0037] It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.
[0038] In this application, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0039] During the production of carbon, the smoke outlet at the top of the roasting furnace used for production is connected to the smoke exhaust rack. When carbon is not being produced, a refractory pad is placed on the outlet and then covered with a sealing cover.
[0040] In the related art, due to the insufficient softness of the refractory pad material, the sealing effect is poor, resulting in serious negative pressure leakage inside the flue and affecting the smoke exhaust effect of the flue.
[0041] To solve the problems in the related art to a certain extent, the embodiment of this application provides a sealed flue structure. When in use, the user only needs to raise the height of the inner ring 211 of the sealing port 12 of the sealing port to a position flush with the outer ring 21 of the sealing port, and a relatively soft refractory cotton 212 is placed between the inner ring 211 and the outer ring 21 of the sealing port. Then the user presses the sealing cover 14 downwards against the smoke outlet 11. The insertion block part at the bottom of the sealing cover 14 is inserted into the inner side wall of the smoke outlet 11 and is kept sealed under the action of friction. At the same time, a slot is provided on the outer side wall of the sealing cover 14. During the downward pressing process, the sealing cover 14 presses the insertion block one 231, causing the insertion block one 231 to press and squeeze the spring 222. Under the elastic force of the spring 222, the insertion block one 231 squeezes the rod body 23 to move towards the empty slot 221 inside the housing 22, so that the sealing cover 14 continues to move downwards. When the slot on the sealing cover 14 is aligned and inserted with the insertion block one 231, the spring 222 resets and the insertion block one 231 is ejected to be inserted into the slot on the sealing cover 14, realizing the fixation of the sealing cover 14.
[0042] The following describes this application with reference to the accompanying drawings and specific embodiments:
[0043] Combined with Figures 1-9, an embodiment of the present application provides a sealed flue structure, including a flue assembly 1; the flue assembly 1 includes: a sealing port 12 is provided at the top of the flue inlet 11, a refractory pad 13 is provided inside the sealing port 12, and a sealing cover 14 is provided on the sealing port 12; a sealing assembly 2 is provided on the flue assembly 1, and the sealing assembly 2 includes: a sealing port outer ring 21 is provided on the sealing port 12, a sealing port inner ring 211 is also provided on the sealing port 12, and refractory cotton 212 is provided between the sealing port outer ring 21 and the sealing port inner ring 211; a housing 22 is provided on the outer side wall of the opposite side of the sealing port outer ring 21, an empty slot 221 is provided inside the housing 22, and a spring 222 is provided inside the empty slot 221; a rod body 23 is provided on the spring 222, one end of the rod body 23 is fixedly connected to the spring 222, and an insertion block one 231 is provided at the other end, and a slot is provided on the sealing cover 14 and is inserted and connected with the insertion block one 231.
[0044] During the production of carbon, the flue inlet 11 at the top of the roasting furnace used for production is connected to the smoke exhaust rack. When carbon is not being produced, a refractory pad 13 is placed inside the sealing port 12 of the wellhead, and then covered with a sealing cover 14. However, the refractory pad 13 is hard in texture, resulting in the sealing cover 14 not being pressed tightly, affecting the sealing effect, and the procurement cost of the refractory pad 13 is relatively high. Therefore, the height of the sealing port inner ring 211 of the sealing port 12 can be raised to the same level as the sealing port outer ring 21, and relatively soft refractory cotton 212 is placed between the sealing port inner ring 211 and the sealing port outer ring 21. The user then presses the sealing cover 14 downwards against the flue inlet 11, and the insertion block part at the bottom of the sealing cover 14 is inserted and connected with the inner side wall of the flue inlet 11, and is kept sealed under the action of friction. At the same time, a slot is provided on the outer side wall of the sealing cover 14. During the downward pressing process, the sealing cover 14 presses the insertion block one 231, causing the insertion block one 231 to be pressed and squeeze the spring 222. Under the elastic force of the spring 222, the insertion block one 231 squeezes the rod body 23 to move towards the empty slot 221 inside the housing 22, causing the sealing cover 14 to continue to move downwards. When the slot on the sealing cover 14 is aligned and inserted with the insertion block one 231, the spring 222 resets, causing the insertion block one 231 to be ejected and inserted into the slot on the sealing cover 14, realizing the fixation of the sealing cover 14.
[0045] In some embodiments, the number of the housings 22 is at least two. Since the number of the housings 22 is at least two, the number of the insertion blocks one 231 is at least two, and the positions of the housings 22 are at different positions on the outer side wall of the sealing port outer ring 21. Correspondingly, the positions of the slots on the sealing cover 14 correspond to the positions of the insertion blocks one 231 on the housings 22. Setting multiple insertion blocks one 231 can fix the sealing cover 14 in all directions and prevent the sealing cover 14 from loosening in a certain direction.
[0046] In some embodiments, a chute 223 is provided inside the housing 22, a slider 224 is provided on the rod body 23, and the slider 224 is slidably connected to the chute 223. The provision of the chute 223 and the slider 224 enables the rod body 23 to drive the first plug 231 to move along a fixed trajectory, preventing the first plug 231 from being displaced due to the extrusion of the sealing cover 14 and affecting the plugging effect.
[0047] In some embodiments, a limiting block 225 is provided through the chute 223 on the slider 224. The provision of the limiting block 225 on the slider 224 can prevent the first plug 231 from disengaging from the chute 223 under the influence of external forces.
[0048] In some embodiments, a rotating block 24 is provided on the outer side wall of the opposite side of the sealing cover 14, a clamping arm 241 is provided on the rotating block 24, a second plug 242 is provided at the bottom of the clamping arm 241, a block 25 is provided on the outer side wall of the outer ring 21 of the sealing port, a slot 251 is provided on the block 25, and the second plug 242 is plugged into the slot 251. After the user fixes the sealing cover 14, the clamping arm 241 is then rotated downward to apply force to insert the second plug 242 at the bottom of the clamping arm 241 into the slot 251 on the block 25 at the bottom of the outer ring 21 of the sealing port. Under the extrusion effect, the clamping arm 241 clamps the sealing cover 14 and the chimney inlet 11, making the two more tightly connected and improving the sealing effect.
[0049] In some embodiments, the length of the clamping arm 241, the height of the sealing cover 14, and the height of the outer ring 21 of the sealing port are the same. Only when the height of the clamping arm 241, the sealing cover 14, and the outer ring 21 of the sealing port are the same can it be ensured that when the second plug 242 on the clamping arm 241 is inserted into the slot 251, the clamping arm 241 clamps the sealing cover 14 and the outer ring 21 of the sealing port.
[0050] In some embodiments, the first plug 231 is trapezoidal. The first plug 231 being trapezoidal enables the first plug 231 to be extruded without the user pressing the first plug 231 during the downward pressing of the sealing cover 14, so that the first plug 231 is pressed downward to complete the plugging.
[0051] In some embodiments, the outer ring 21 of the sealing port and the inner ring 211 of the sealing port are flush in height. The outer ring 21 of the sealing port and the inner ring 211 of the sealing port being flush in height ensures the tightness of the sealing cover 14 covering the chimney inlet 11.
[0052] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.
[0053] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0054] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sealed flue structure, comprising a flue assembly (1); the flue assembly (1) comprising: A smoke well opening (11) is provided with a sealing opening (12) at the top thereof, a fireproof pad (13) is provided inside the sealing opening (12), and a sealing cover (14) is provided on the sealing opening (12); The invention is characterized in that: a sealing component (2) is arranged on the flue component (1), and the sealing component (2) comprises: A sealing port outer ring (21) is arranged on the sealing port (12), a sealing port inner ring (211) is also arranged on the sealing port (12), and a fire-resistant cotton (212) is arranged between the sealing port outer ring (21) and the sealing port inner ring (211); A housing (22) is arranged on an outer side wall opposite to the outer ring (21) of the sealing port, a hollow groove (221) is arranged inside the housing (22), and a spring (222) is arranged inside the hollow groove (221); A rod body (23) is arranged on the spring (222); one end of the rod body (23) is fixedly connected to the spring (222); the other end of the rod body (23) is provided with an insert block (231); and the sealing cover (14) is provided with a slot for inserting into the insert block (231).
2. A sealed flue structure according to claim 1, characterized in that: The housings (22) are provided in at least two numbers.
3. A sealed flue structure according to claim 2, characterized in that: A sliding groove (223) is arranged inside the housing (22), a sliding block (224) is arranged on the rod body (23), and the sliding block (224) is slidably connected to the sliding groove (223).
4. A sealed flue structure according to claim 3, characterized in that: The sliding block (224) passes through the sliding groove (223) and is provided with a limiting block (225).
5. A sealed flue structure according to claim 1, characterized in that: A rotating block (24) is arranged on the outer side wall of the opposite surface of the sealing cover (14); a clamping arm (241) is arranged on the rotating block (24); a second plugging block (242) is arranged at the bottom of the clamping arm (241); a block body (25) is arranged on the outer side wall of the sealing port outer ring (21); a slot (251) is arranged on the block body (25); and the second plugging block (242) and the slot (251) are plugged into each other.
6. A sealed flue structure according to claim 5, characterized in that: The length of the clamp arm (241), the height of the sealing cover (14) and the sealing port outer ring (21) are consistent.
7. A sealed flue structure according to claim 1, characterized in that: The insert block 1 (231) is trapezoidal.
8. A sealed flue structure according to claim 1, characterized in that: The sealing port outer ring (21) and the sealing port inner ring (211) are flush in height.