Central pipe sealing device for activated carbon manufacturing furnace

Abstract

The utility model discloses a central tube sealing device for an activated carbon manufacturing furnace, which relates to the technical field of activated carbon manufacturing furnaces and comprises a packing flange (2), the packing flange (2) is sleeved and connected on the outer wall of a furnace body central tube (7), and the packing flange (2) is rotatably connected with the furnace body central tube (7). The packing flange (2) comprises a first flange end face and a packing cavity wall, a cavity with an opening in the outer end is formed between the packing cavity wall and the outer wall of the furnace body center pipe (7), and a packing body is placed in the cavity. The packing gland (1) is mounted at the opening of the cavity and is in clearance fit with the outer wall of the furnace body central pipe (7); the sealing expansion joint (4) is connected to the end face of the first flange; and the supporting assembly (6) is used for supporting the packing flange (2). The central tube sealing device is used for sealing the central tube of the furnace body, so that the interior of the furnace is oxygen-free, and external air is prevented from entering the furnace to cause combustion.

Description

Technical Field

[0001] The utility model relates to the technical field of activated carbon manufacturing furnaces, in particular to a central pipe sealing device used for activated carbon manufacturing furnaces. Background Art

[0002] Pyrolysis furnace and activation furnace are two key equipment in the manufacturing process of activated carbon.

[0003] Pyrolysis furnaces are mainly used in the pyrolysis process, which is to heat organic matter in the absence of oxygen or low oxygen conditions to break it down into smaller molecules. This process can produce solid, liquid and gas products, depending on the type of feedstock and pyrolysis conditions, and is the first step in energy and material production. There are also many types of pyrolysis furnaces, such as rotary pyrolysis furnaces, fixed bed pyrolysis furnaces, etc.

[0004] The activation furnace is mainly used to further process the solid carbon after carbonization to improve its pore structure and specific surface area, so that it has higher adsorption performance. The activation process usually uses water vapor or CO2 as an activator, which reacts chemically with the solid carbon at high temperature to produce activated carbon with high porosity. The activation furnace is used to improve the pore structure and specific surface area of ​​solid carbon, and is a key step in the production of high-performance activated carbon. There are also many types of activation furnaces, such as rotary activation furnaces, fluidized bed activation furnaces, etc.

[0005] However, the problem with rotary pyrolysis furnaces and activation furnaces at present is that the sealing of the dynamic and static joints at the furnace head and furnace tail is poor, which causes outside air to enter the furnace and trigger uncontrollable combustion, resulting in a sharp rise in furnace temperature, deformation of the furnace body, and unstable composition of pyrolysis products and properties of activated carbon, making it difficult to obtain solid (carbon), liquid (tar), gas (fuel gas), and activated carbon products with uniform properties.

[0006] In summary, how to effectively solve the problem of poor sealing of the dynamic and static joints of the activated carbon manufacturing furnace is an issue that technical personnel in this field urgently need to solve. Utility Model Content

[0007] The utility model aims to provide a central tube sealing device for an activated carbon manufacturing furnace, which can well seal the central tube of the furnace body, so that the interior of the furnace is oxygen-free and external air is prevented from entering the furnace to cause combustion.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0009] A central tube sealing device for an activated carbon manufacturing furnace comprises a packing flange, which is sleeved and connected to the outer wall of the central tube of a furnace body, and is rotatably connected to the central tube of the furnace body. The packing flange comprises a first flange end face and a packing cavity wall, and a cavity with an opening at the outer end is formed between the packing cavity wall and the outer wall of the central tube of the furnace body, and the packing body is placed in the cavity; it also comprises a packing gland installed at the opening of the cavity and having a clearance fit with the outer wall of the central tube of the furnace body, a sealing expansion joint connected to the first flange end face, and a supporting assembly for supporting the packing flange.

[0010] Optionally, the packing flange includes a second flange end face, the packing gland has an L-shaped cross section, the transverse ring is inserted into the cavity opening, and the vertical ring is fitted and connected to the second flange end face.

[0011] Optionally, it further comprises a finishing tube which is sleeved and connected to the outer wall of the furnace body center tube, the packing flange and the packing gland are sleeved on the finishing tube, and the packing flange and the packing gland are clearance-matched with the finishing tube.

[0012] Optionally, the packing cavity wall comprises a circumferential wall and an axial wall, the inner diameter of the circumferential wall is smaller than the inner diameter of the axial wall, and the inner wall of the circumferential wall is gap-matched with the outer wall of the furnace body center tube.

[0013] Optionally, the furnace center tube coincides with the axis of the packing flange.

[0014] Optionally, the end of the sealing expansion joint is connected to a soft connection expansion joint.

[0015] Optionally, the sealing expansion joint has a first connecting flange at one end close to the packing flange and a second connecting flange at one end away from the packing flange. The first flange end face of the packing flange can be selectively connected to the first connecting flange or the second connecting flange, and the second connecting flange is connected to the connecting disk of the flexible expansion joint.

[0016] Optionally, the first flange end surface of the packing flange is connected to the inner surface of the second connecting flange close to the packing flange, the outer wall of the packing flange is provided with a connecting seat, and the first connecting flange is connected to the connecting seat.

[0017] Optionally, the packing flange and the packing gland are detachably connected, and the packing flange and the sealing expansion joint are detachably connected.

[0018] Optionally, the side wall of the packing flange is provided with an ear plate, the support assembly is detachably connected to the ear plate, and the bottom of the support assembly is provided with a walking wheel.

[0019] The central pipe sealing device provided by the utility model has a first flange end face at one end of the packing flange, the first flange end face is located near one end of the sealing expansion joint, and the first flange end face is in contact with and tightly connected to the connecting plate of the sealing expansion joint. The sealing expansion joint includes a bellows, and the expansion and contraction deformation of the bellows is used to absorb the size change or compensate for the displacement, and has the characteristics of shock absorption, noise reduction, sealing, medium resistance, etc.

[0020] The packing cavity wall of the packing flange is concentric with the end face of the first flange, and the inner wall radius is equal. The packing cavity wall is sleeved and connected to the outer wall of the furnace center tube at the furnace body sealing port. There is a gap between the packing cavity wall and the outer wall of the furnace center tube. A cavity is formed between the packing cavity wall and the outer wall of the furnace center tube. The outer end of the cavity has an opening. The packing body is placed in the cavity. The packing body can be specifically graphite packing. After the packing body is placed in the cavity, the packing gland is installed at the opening of the cavity. The packing gland seals the opening of the cavity to prevent the packing body from falling out of the opening. The packing gland is matched with the outer wall of the furnace center tube. The packing cavity wall does not contact the outer wall of the furnace center tube. The center tube sealing device is stationary. When the furnace center tube rotates, the furnace center tube rotates relative to the packing flange, and the center tube sealing device does not interfere with the rotation of the furnace center tube. The base body is in contact with the outer wall of the furnace center tube, which can ensure that the rotation between the furnace center tube and the center tube sealing device does not interfere with each other, and can also achieve the sealing of the furnace center tube sealing port.

[0021] The support assembly is supported under the packing flange, packing gland and sealing expansion joint to perform circumferential positioning on the packing flange, packing gland and sealing expansion joint to prevent the packing flange, packing gland and sealing expansion joint from contacting with the furnace center tube, thereby ensuring the normal rotation of the furnace center tube.

[0022] The central tube sealing device provided by the utility model can dynamically and statically seal the central tube of the furnace body of the activated carbon manufacturing furnace through the base plate body, thereby ensuring that the dynamic and static joint parts of the central tube of the furnace body and the central tube sealing device are well sealed, so that oxygen is eliminated in the furnace, and outside air is prevented from entering the furnace to cause combustion, thereby ensuring that the operating parameters of the activated carbon manufacturing furnace are stable, and the properties of the obtained solid carbon, liquid tar, gas fuel oil products, and activated carbon products are stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1A schematic diagram of a central tube sealing device provided in a specific embodiment of the utility model applied to a central tube at the tail of an activation furnace;

[0025] Figure 2 A schematic diagram of a central tube sealing device provided in a specific embodiment of the utility model applied to a central tube at the tail of a pyrolysis furnace;

[0026] Figure 3 A schematic diagram of a central tube sealing device provided in a specific embodiment of the utility model applied to a central tube of a furnace head of a pyrolysis furnace;

[0027] Figure 4 This is a schematic diagram of a central tube sealing device provided in a specific implementation manner of the utility model being applied to an activation furnace burner.

[0028] The following are marked in the accompanying drawings:

[0029] Packing gland 1, packing flange 2, soft connection expansion joint 3, sealing expansion joint 4, finishing pipe 5, supporting assembly 6, furnace body center tube 7, furnace head flange 8. DETAILED DESCRIPTION

[0030] The core of the utility model is to provide a central tube sealing device for an activated carbon manufacturing furnace, which can well seal the central tube of the furnace body, so that the interior of the furnace is oxygen-free and external air is prevented from entering the furnace to cause combustion.

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Please refer to Figures 1 to 4 , Figure 1 A schematic diagram of a central tube sealing device provided in a specific embodiment of the utility model applied to a central tube at the tail of an activation furnace; Figure 2 A schematic diagram of a central tube sealing device provided in a specific embodiment of the utility model applied to a central tube at the tail of a pyrolysis furnace; Figure 3 A schematic diagram of a central tube sealing device provided in a specific embodiment of the utility model applied to a central tube of a furnace head of a pyrolysis furnace; Figure 4 This is a schematic diagram of a central tube sealing device provided in a specific implementation manner of the utility model being applied to an activation furnace burner.

[0033] In a specific embodiment, the central tube sealing device for an activated carbon manufacturing furnace provided by the utility model includes a packing flange 2, which is sleeved and connected to the outer wall of the central tube 7 of the furnace body, and the packing flange 2 is rotatably connected to the central tube 7 of the furnace body. The packing flange 2 includes a first flange end face and a packing cavity wall, and a cavity with an opening at the outer end is formed between the packing cavity wall and the outer wall of the central tube 7 of the furnace body, and the packing body is placed in the cavity; it also includes a packing pressure cover 1 installed at the opening of the cavity and gap-matched with the outer wall of the central tube 7 of the furnace body, a sealing expansion joint 4 connected to the first flange end face, and a support assembly 6 for supporting the packing flange 2.

[0034] In the above structure, the central tube sealing device is applied to the central tube sealing of an activated carbon manufacturing furnace, which includes but is not limited to an activation furnace and a pyrolysis furnace. The central tube sealing device includes a packing flange 2, a packing gland 1, a sealing expansion joint 4 and a support assembly 6.

[0035] One end of the packing flange 2 has a first flange end face, which is located near one end of the sealing expansion joint 4, and the first flange end face contacts and is tightly connected with the connecting plate of the sealing expansion joint 4. The sealing expansion joint 4 includes a bellows, which utilizes the expansion and contraction deformation of the bellows to absorb dimensional changes or compensate for displacement, and has the characteristics of shock absorption, noise reduction, sealing, and medium resistance.

[0036] The packing cavity wall of the packing flange 2 is concentric with the end face of the first flange, and the inner wall radius is equal. The packing cavity wall is sleeved and connected to the outer wall of the furnace center tube 7 at the sealing port of the furnace body. There is a gap between the packing cavity wall and the outer wall of the furnace center tube 7. A cavity is formed between the packing cavity wall and the outer wall of the furnace center tube 7. The outer end of the cavity has an opening. The packing body is placed in the cavity. The packing body can specifically be a graphite packing. After the packing body is placed in the cavity, the packing gland 1 is installed at the opening of the cavity. The packing gland 1 seals the opening of the cavity to prevent the packing body from falling out of the opening.

[0037] The packing gland 1 is in clearance fit with the outer wall of the furnace center tube 7, the packing cavity wall does not contact the outer wall of the furnace center tube 7, the center tube sealing device is stationary, when the furnace center tube 7 rotates, the furnace center tube 7 rotates relative to the packing flange 2, and the center tube sealing device does not interfere with the rotation of the furnace center tube 7. The packing body is in contact with the outer wall of the furnace center tube 7, which can ensure that the rotation between the furnace center tube 7 and the center tube sealing device does not interfere, and can also achieve the sealing of the sealing port of the furnace center tube 7.

[0038] The support assembly 6 is supported underneath the packing flange 2, the packing gland 1 and the sealing expansion joint 4 to perform circumferential positioning on the packing flange 2, the packing gland 1 and the sealing expansion joint 4 to prevent the packing flange 2, the packing gland 1 and the sealing expansion joint 4 from contacting with the furnace center tube 7, thereby ensuring the normal rotation of the furnace center tube 7.

[0039] The central tube sealing device provided by the utility model can dynamically and statically seal the central tube 7 of the furnace body of the activated carbon manufacturing furnace through the base body, thereby ensuring that the dynamic and static joints between the central tube 7 of the furnace body and the central tube sealing device are well sealed, so that the furnace is oxygen-free, and outside air is prevented from entering the furnace to cause combustion, thereby ensuring that the operating parameters of the activated carbon manufacturing furnace are stable, and the properties of the obtained solid carbon, liquid tar, gas fuel oil products, and activated carbon products are stable.

[0040] On the basis of the above specific embodiment, the packing flange 2 includes a second flange end face, the cross section of the packing gland 1 is L-shaped, the horizontal ring is inserted into the cavity opening, and the vertical ring is fitted and connected to the second flange end face.

[0041] In a specific embodiment, the packing gland 1 is in a circular ring shape, and includes a transverse ring and a vertical ring, and has an L-shaped cross section, wherein the transverse ring is along the axial direction of the packing gland 1, and the vertical ring is along the radial direction of the packing gland 1, and the vertical ring is connected to the outer edge of the transverse ring. The transverse ring is inserted into the opening of the cavity along the axial direction, and the transverse ring blocks the opening of the cavity.

[0042] The other end of the packing flange 2 is provided with a second flange end face, which is concentric with the packing cavity wall and the first flange end face, and has the same inner wall radius. The vertical ring is fitted and connected to the second flange end face, and can be connected by screws, which is convenient to connect and easy to disassemble.

[0043] On the basis of the above-mentioned specific embodiments, it also includes a finishing tube 5 which is sleeved and connected to the outer wall of the furnace center tube 7, the packing flange 2 and the packing gland 1 are sleeved on the finishing tube 5, and the packing flange 2 and the packing gland 1 are clearance-matched with the finishing tube 5.

[0044] In a specific embodiment, the surface roughness of the finishing tube 5 is relatively high, and precision machining is adopted, specifically grinding, polishing or ultra-precision machining can be used to achieve a surface roughness of Ra 1.6. The finishing tube 5 is sleeved and connected to the outer wall of the furnace center tube 7, specifically by welding, and the finishing tube 5 and the furnace center tube 7 form a whole. The packing flange 2 and the packing gland 1 are sleeved on the finishing tube 5, and there is a gap between the packing flange 2 and the packing gland 1 and the finishing tube 5, which can increase the strength of the furnace center tube 7 at the connection between the packing flange 2 and the packing gland 1, and improve the surface roughness of the furnace center tube 7. The packing body rotates more smoothly relative to the finishing tube 5, reducing friction and jamming.

[0045] When the gap between the outer wall of the furnace center tube 7 and the packing flange 2 is large, a compensation component can be arranged between the outer wall of the furnace center tube 7 and the packing flange 2. The compensation component includes a fixing ring connected to the outer wall of the furnace center tube 7 and having a groove on the outer peripheral wall, and a sealing ring installed in the groove, and the packing component and the sealing ring are gap-matched.

[0046] In practical applications, the compensation assembly includes a fixing ring and a sealing ring, both of which are annular structures. The fixing ring is sleeved on the outer wall of the furnace center tube 7, and the inner wall of the fixing ring is equal to the outer wall of the furnace center tube 7 in diameter. The two are in sealing contact and can be connected by welding or by a sealing gasket.

[0047] The outer wall of the fixed ring has a groove, the sealing ring is installed in the groove, the fixed ring and the sealing ring are sealed, and the outer surface of the sealing ring is a smooth arc surface. The packing assembly and the sealing ring are matched with each other in a clearance, and the packing body is in contact with the outer wall of the sealing ring, which can ensure that the rotation between the compensation assembly and the sealing device does not interfere, and can also achieve the sealing of the opening of the compensation assembly.

[0048] Optionally, the fixing ring is in a concave shape, the sealing ring is in a convex shape, and the end cover of the sealing ring is pressed on the top surface of the fixing ring.

[0049] Based on the above specific embodiments, both ends of the groove have threaded holes, the bolts are connected in the threaded holes and the ends thereof are pressed against the side walls of the sealing ring.

[0050] In practical applications, in order to facilitate the installation of the sealing ring in the groove, the width of the groove is larger than the width of the sealing ring. Threaded holes are opened at both ends of the groove. For safety, multiple threaded holes are opened at each end. Bolts are connected in the threaded holes. The bolts are threadedly connected with the threaded holes. The bolts are screwed so that the ends of the bolts are pressed against the side walls of the sealing ring. The sealing ring is positioned at both ends at the same time to fix the sealing ring and prevent the sealing ring from moving left and right in the groove.

[0051] On the basis of the above-mentioned specific embodiments, the position of the sealing ring installed on the fixing ring is adjusted by adjusting the depth of the bolt connected to the threaded hole.

[0052] In actual application, the bolt is threadedly connected to the threaded hole, and the depth of the bolt connected to the threaded hole is adjustable, so as to adjust the position of the sealing ring installed in the groove, ensure that the matching length of the packing flange 2 and the furnace center tube 7 is complete, prevent the packing flange 2 from escaping from the furnace center tube 7, and realize effective sealing of the furnace center tube 7.

[0053] On the basis of the above-mentioned specific embodiments, the fixing ring and the sealing ring respectively include at least two split rings, the ends of the split rings have connecting plates, and the split rings are connected at the connecting plates by screws.

[0054] In practical applications, due to the large size of the fixing ring and the sealing ring, the fixing ring and the sealing ring are designed as a split structure, including at least two split rings, which are assembled and connected. Specifically, each split ring has a connecting plate at the end, and the split rings are connected by screws at the connecting plate, which is convenient for connection and processing, and is also convenient for installation on the furnace center tube 7.

[0055] Based on the above specific embodiments, the packing cavity wall includes a circumferential wall and an axial wall. The inner diameter of the circumferential wall is smaller than the inner diameter of the axial wall. The inner wall of the circumferential wall is gap-matched with the outer wall of the furnace center tube 7.

[0056] In a specific embodiment, the circumferential wall is perpendicular to the axial wall, the circumferential wall is connected to the inner side of the axial wall, the circumferential wall is closer to the outer wall of the furnace body center tube 7 than the axial wall, the opening of the cavity is opposite to the circumferential wall, the circumferential wall and the axial wall constitute the two inner walls of the cavity, and the disk body is in contact with the circumferential wall and the axial wall. The inner wall of the circumferential wall is in clearance fit with the outer wall of the furnace body center tube 7, the inner wall of the circumferential wall is not in contact with the outer wall of the furnace body center tube 7, and the circumferential wall does not affect the rotation of the furnace body center tube 7.

[0057] The circumferential wall is located in the middle of the axial wall, that is, in the axial direction. The first flange end face and the second flange end face are located at both ends of the axial wall and are connected to the outer wall of the axial wall. The circumferential wall is located between the two flange end faces and is connected to the inner wall of the axial wall. The relative distance between the circumferential wall and the axial wall is not limited, and the length of the axial wall is not limited, and can be set according to the specific usage. The circumferential wall and the first flange end face can be on the same plane and located on both sides of the axial wall, which is convenient for processing.

[0058] Preferably, the circumferential wall, the axial wall, the first flange end face and the second flange end face are integrally formed, for example, by injection molding, so that the overall strength is higher and the sealing performance is better.

[0059] In the above embodiment, the packing cavity wall has a simple structure and is easy to process, which not only facilitates the packing body to be accommodated in the cavity, but also does not interfere with the rotation of the furnace center tube 7.

[0060] On the basis of the above-mentioned specific embodiments, the axis of the furnace center tube 7 coincides with the axis of the packing flange 2 .

[0061] In a specific embodiment, the packing flange 2, the packing gland 1 and the furnace center tube 7 are kept concentric, that is, the gap between the outer wall of the furnace center tube 7 and the inner wall of the packing flange 2 is equal, the gap is uniform everywhere, the inner wall of the packing flange 2 is not easy to contact with the outer wall of the furnace center tube 7, and it is ensured that the packing flange 2 does not interfere with the rotation of the furnace center tube 7.

[0062] On the basis of the above-mentioned specific embodiments, the end of the sealing expansion joint 4 is connected to the flexible expansion joint 3 .

[0063] In practical applications, the flexible expansion joint 3 is a bellows, and the two expansion joints are connected in series, which further improves the telescopic deformation capacity of the central tube sealing device, further increases the dimensional change or displacement compensation amount, further increases the shock absorption, noise reduction, and sealing performance, and makes the subsequent connection of the central tube sealing device to other components more flexible.

[0064] Of course, in order to obtain a greater deformation, the number of expansion joints in series can be increased.

[0065] In a specific embodiment, the sealing expansion joint 4 has a first connecting flange at one end close to the packing flange 2 and a second connecting flange at one end away from the packing flange 2. The first flange end face of the packing flange 2 can be selectively connected to the first connecting flange or the second connecting flange, and the second connecting flange is connected to the connecting disk of the flexible expansion joint 3.

[0066] In practical applications, both ends of the sealing expansion joint 4 have connecting flanges, the first connecting flange is arranged at an end close to the packing flange 2 , and the second connecting flange is arranged at an end away from the packing flange 2 .

[0067] When the packing flange 2 is connected to the sealing expansion joint 4, the first flange end face of the packing flange 2 can be connected to the first connection flange of the sealing expansion joint 4, or it can be connected to the second connection flange. Regardless of whether the first flange end face is connected to the first connection flange or the second connection flange, the outer surface of the second connection flange is connected to the connection disk of the flexible connection expansion joint 3, so that the end of the sealing expansion joint 4 is connected to the flexible connection expansion joint 3.

[0068] When the first flange end face of the packing flange 2 is connected to the first connecting flange of the sealing expansion joint 4, the outer side of the first flange end face of the packing flange 2 is in contact with the outer side of the first connecting flange of the sealing expansion joint 4, and then fastened by fasteners. The processing is convenient and the sealing expansion joint 4 is more flexible.

[0069] When the first flange end face of the packing flange 2 is connected to the second connecting flange of the sealing expansion joint 4, the outer side of the first flange end face of the packing flange 2 is in contact with the inner side of the second connecting flange of the sealing expansion joint 4, and the inner side of the second connecting flange is the side close to the packing flange 2, and then fastened by fasteners.

[0070] In addition, a connection seat is provided on the outer wall of the packing flange 2, and the first connection flange of the sealing expansion joint 4 is in close contact with the connection seat and fastened by a fastener. In this connection mode, both ends of the sealing expansion joint 4 are connected to the packing flange 2, and the sealing expansion joint 4 is fixed more firmly and reliably.

[0071] Based on the above specific embodiments, the packing flange 2 is detachably connected to the packing gland 1, and the packing flange 2 is detachably connected to the sealing expansion joint 4. Specifically, the connection can be made by bolts, which is convenient for connection, easy to disassemble, and easy to replace damaged parts.

[0072] On the basis of the above-mentioned specific embodiments, the support assembly 6 includes a fixed support placed on the ground and an adjusting support mechanism installed on the fixed support for adjusting the concentricity of the inner wall of the packing assembly and the outer wall of the compensation assembly.

[0073] In actual application, the support assembly 6 is supported under the packing flange 2, the packing gland 1 and the sealing expansion joint 4 to perform circumferential positioning of the packing flange 2, the packing gland 1 and the sealing expansion joint 4 to prevent the packing flange 2, the packing gland 1 and the sealing expansion joint 4 from contacting with the compensation assembly, thereby ensuring the normal rotation of the furnace center tube 7.

[0074] On the basis of the above-mentioned specific embodiments, the side wall of the packing flange 2 is provided with an ear plate, and the support assembly 6 is detachably connected to the ear plate.

[0075] In actual applications, an ear plate is welded to the side wall of the packing flange 2, and the ear plate has a through hole. The support component 6 has a connecting hole that matches the ear plate. The bolts pass through the through hole of the ear plate and the connecting hole of the support component 6 and the ends are fastened by nuts. The number of nuts can be two to achieve self-locking and prevent loosening.

[0076] In another embodiment, a nut is fixed at the connection hole of the support assembly 6, and the bolt passes through the through hole of the ear plate and the connection hole of the support assembly 6 and is connected to the nut.

[0077] On the basis of the above-mentioned specific embodiments, the support assembly 6 includes a fixed support and an adjustable support mechanism. The fixed support is placed on the ground. A walking wheel is provided at the bottom of the fixed support. The position of the support assembly 6 and the packing flange 2 on the support assembly 6 can be easily adjusted through the walking wheel to ensure that the packing flange 2 and the furnace center tube 7 have a complete length, prevent the packing flange 2 from escaping from the furnace center tube 7, and achieve effective sealing of the furnace center tube 7.

[0078] The adjusting support mechanism is installed on the fixed support, and the upper end of the adjusting support mechanism is connected to the packing assembly. The length of the adjusting support mechanism can be adjusted, so that the position of the packing assembly makes the inner wall of the packing assembly and the outer wall of the compensation assembly concentric, that is, the gap between the outer wall of the compensation assembly and the inner wall of the packing flange 2 is equal, the gap is uniform everywhere, the inner wall of the packing flange 2 is not easy to contact the outer wall of the compensation assembly, and the packing flange 2 does not interfere with the rotation of the furnace center tube 7.

[0079] Based on the above specific embodiments, the adjusting support mechanism includes:

[0080] A position sensor for detecting the coordinates of the central axis of the packing assembly;

[0081] A distance sensor for detecting the coordinates of the central axis of the compensation component;

[0082] An adjusting portion connected to the position sensor and the distance sensor and used for adjusting the central axis of the packing assembly to coincide with the central axis of the compensation assembly when the central axis of the packing assembly does not coincide with the central axis of the compensation assembly.

[0083] In practical applications, the position sensor is installed on the packing assembly to detect the central axis coordinates of the packing assembly, and the distance sensor is installed on the compensation assembly to detect the central axis coordinates of the compensation assembly. The central axis coordinates specifically include the vertical coordinates and longitudinal coordinates perpendicular to the central axis.

[0084] The adjustment part is connected to the position sensor and the distance sensor. The adjustment part receives and compares the center axis coordinates of the packing assembly detected by the position sensor and the center axis coordinates of the compensation assembly detected by the distance sensor. When the center axis coordinates of the packing assembly and the center axis coordinates of the compensation assembly are not equal, it means that the center axis of the packing assembly does not coincide with the center axis of the compensation assembly. The adjustment part adjusts the center axis of the packing assembly to a position where it coincides with the center axis of the compensation assembly. The inner wall of the packing assembly and the outer wall of the compensation assembly are kept concentric, that is, the gap between the outer wall of the compensation assembly and the inner wall of the packing flange 2 is equal, and the gap is uniform everywhere, the inner wall of the packing flange 2 is not easy to contact the outer wall of the compensation assembly, and the packing flange 2 does not interfere with the rotation of the furnace center tube 7.

[0085] More specifically, the adjusting section includes a receiving unit, a judging unit, and a moving section.

[0086] Among them, the receiving unit can be connected to the position sensor and the distance sensor to receive the current coordinate information of the central axis of the packing assembly detected by the position sensor and the coordinate information of the central axis of the compensation assembly detected by the distance sensor; the judging unit is connected to the receiving unit to judge whether the coordinate of the central axis of the packing assembly is equal to the coordinate of the central axis of the compensation assembly; the moving part is connected to the judging unit to control the central axis of the packing assembly to move to coincide with the central axis of the compensation assembly when the coordinate of the central axis of the packing assembly is not equal to the coordinate of the central axis of the compensation assembly.

[0087] In the above embodiment, the adjustment part can ensure that the inner wall of the packing assembly and the outer wall of the compensation assembly are concentric, that is, the gap between the outer wall of the compensation assembly and the inner wall of the packing flange 2 is equal, and the gap is uniform everywhere, the inner wall of the packing flange 2 and the outer wall of the compensation assembly are not easy to contact, and the packing flange 2 does not interfere with the rotation of the furnace center tube 7.

[0088] More specifically, the moving part includes a calculation unit and a movement execution unit.

[0089] Among them, the calculation unit is connected to the judgment unit. When the judgment unit determines that the coordinates of the central axis of the packing assembly are not equal to the coordinates of the central axis of the compensation assembly, the calculation unit can calculate the distance between the current coordinates of the central axis of the packing assembly and the coordinates of the central axis of the compensation assembly, that is, the distance difference between the two. The distance difference is the optimal vector that the packing assembly should move.

[0090] After the calculation unit calculates the above-mentioned optimal vector, it sends a movement signal to the mobile execution unit to control the mobile execution unit to move the optimal vector, that is, to realize the optimal movement of the central axis of the packing assembly to the optimal vector, to ensure that the inner wall of the packing assembly and the outer wall of the compensation assembly are concentric, the inner wall of the packing flange 2 and the outer wall of the compensation assembly are not easy to contact, and the packing flange 2 does not interfere with the rotation of the furnace center tube 7.

[0091] Of course, according to the above-mentioned optimal vector, the mobile execution unit can also move within a reasonable range close to the optimal vector, that is, move within a circle with a set diameter centered on the optimal vector, thereby reducing the difficulty of moving the mobile execution unit and saving adjustment time.

[0092] It should be noted that the central tube sealing device is also suitable for sealing the furnace head flange of the activation furnace. In this case, the packing flange 2 is mounted on the furnace head flange 8, and other connections are the same as those of the central tube sealing device. The packing body is in contact with the furnace head flange of the activation furnace, which can perform a good dynamic seal on the furnace head of the activation furnace, so that the front end of the activation furnace is oxygen-free and the outside air is prevented from entering the furnace head to cause the activated carbon to burn.

[0093] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0094] The central tube sealing device for an activated carbon manufacturing furnace provided by the utility model is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, several improvements and modifications can be made to the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A central tube sealing device for an activated carbon manufacturing furnace, characterized in that: The invention comprises a packing flange (2), wherein the packing flange (2) is sleeved and connected to the outer wall of a furnace body center tube (7), the packing flange (2) is rotatably connected to the furnace body center tube (7), the packing flange (2) comprises a first flange end face and a packing cavity wall, a cavity with an opening at the outer end is formed between the packing cavity wall and the outer wall of the furnace body center tube (7), and the packing body is placed in the cavity; and further comprises a packing gland (1) installed at the opening of the cavity and having a clearance fit with the outer wall of the furnace body center tube (7), a sealing expansion joint (4) connected to the first flange end face, and a supporting assembly (6) for supporting the packing flange (2).

2. The center pipe sealing device according to claim 1, characterized in that: The packing flange (2) comprises a second flange end face, the packing gland (1) has an L-shaped cross section, the transverse ring is inserted into the cavity opening, and the vertical ring is fitted and connected to the second flange end face.

3. The center pipe sealing device according to claim 1, characterized in that: It also includes a finishing tube (5) sleeved and connected to the outer wall of the furnace body center tube (7), the packing flange (2) and the packing gland (1) are sleeved on the finishing tube (5), and the packing flange (2) and the packing gland (1) are clearance-matched with the finishing tube (5).

4. The center pipe sealing device according to claim 1, characterized in that: The packing cavity wall comprises a circumferential wall and an axial wall, the inner diameter of the circumferential wall is smaller than the inner diameter of the axial wall, and the inner wall of the circumferential wall is gap-matched with the outer wall of the furnace body center tube (7).

5. The center pipe sealing device according to claim 1, characterized in that: The axis of the furnace body center tube (7) coincides with the axis of the packing flange (2).

6. The center pipe sealing device according to claim 1, characterized in that: The end of the sealing expansion joint (4) is connected to the soft connection expansion joint (3).

7. The center pipe sealing device according to claim 6, characterized in that: The sealing expansion joint (4) has a first connecting flange at one end close to the packing flange (2) and a second connecting flange at one end away from the packing flange (2); the first flange end face of the packing flange (2) can be selectively connected to the first connecting flange or the second connecting flange, and the second connecting flange is connected to the connecting disk of the flexible expansion joint (3).

8. The center pipe sealing device according to claim 7, characterized in that: The first flange end surface of the packing flange (2) is connected to the inner surface of the second connecting flange close to the packing flange (2), and the outer wall of the packing flange (2) is provided with a connecting seat, and the first connecting flange is connected to the connecting seat.

9. The center pipe sealing device according to any one of claims 1 to 8, characterized in that: The packing flange (2) and the packing gland (1) are detachably connected, and the packing flange (2) and the sealing expansion joint (4) are detachably connected.

10. The center pipe sealing device according to any one of claims 1 to 8, characterized in that: The side wall of the packing flange (2) is provided with an ear plate, the support assembly (6) is detachably connected to the ear plate, and the bottom of the support assembly (6) is provided with a walking wheel.

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