A reactor furnace cover sealing device

By combining a mechanical pressure structure and a dynamic elastic sealing ring, the problem of loosening of the sealing structure of traditional bamboo carbonization reactors under high temperature and high pressure is solved, achieving fast and reliable sealing operation and improving production continuity and safety.

CN224293240UActive Publication Date: 2026-05-29XIAMEN QIANQI NEW MATERIALS TECHNOLOGY RESEARCH INSTITUTE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN QIANQI NEW MATERIALS TECHNOLOGY RESEARCH INSTITUTE CO LTD
Filing Date
2025-07-28
Publication Date
2026-05-29

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    Figure CN224293240U_ABST
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Abstract

The utility model discloses a kind of reaction kettle furnace cover sealing devices, including reaction kettle body and kettle cover, the top end of the reaction kettle body is equipped with several sealing components, when kettle cover is placed on reaction kettle body, sealing component will exert downward pressure to it, make kettle cover and kettle body tightly adhere, the bottom end of kettle cover or the top end of reaction kettle body is provided with sealing ring;The sealing component includes support, rotating rod, fixed base and pressure rod, the support is fixed on reaction kettle body, the rotating rod is rotatably assembled on support, and fixed base is installed on the other end of rotating rod, the pressure rod is liftably assembled on fixed base, the pressure rod moves downward and thereby contacts kettle cover and exerts pressure, the utility model replaces artificial mud application operation by mechanical pressure structure, and releases kettle cover sealing process from complex cleaning, filling, compaction;Operator only needs horizontal rotation positioning and vertical locking two actions, and sealing loading can be completed in very short time.
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Description

Technical Field

[0001] This utility model relates to the field of carbonization furnace technology, specifically a sealing device for a reactor furnace cover. Background Technology

[0002] Bamboo carbonization needs to be carried out in a high-temperature reactor. The production process includes the following high-frequency operations: loading stage: the raw bamboo frames are loaded into the reactor using hoisting equipment; unloading stage: the finished bamboo charcoal is hoisted out as a whole; the operation requires the reactor lid to be opened and closed repeatedly 5-10 times a day, which places extremely high demands on the convenience and durability of the sealing structure.

[0003] Traditional bamboo carbonization reactors generally employ two sealing methods. The first involves piling clay or refractory mortar at the flange joint between the reactor lid and the reactor body, compacting it to form a sealing layer. However, this method has significant drawbacks: low operational efficiency, requiring manual removal of old clay and refilling each time the lid is opened, taking more than 30 minutes per instance, severely impacting production continuity, and failing to effectively seal when the high-temperature flue gas content is high. The second method uses male and female wedge blocks. This structure relies on the wedge effect of the inclined surfaces to fix the end cap, maintaining a sealed state through frictional self-locking under the initial pre-tightening force. However, in actual high-pressure conditions, the radial expansion force generated by the increased internal pressure of the reactor body significantly weakens the static friction of the wedge block contact surface, causing the wedge block assembly to exhibit a reverse slippage tendency. Especially when the internal pressure gradually increases to the middle and later stages, the original mechanical balance between the wedge blocks is easily disrupted, inducing progressive loosening. This structural defect poses a risk of seal failure. Summary of the Invention

[0004] The purpose of this invention is to provide a sealing device for a reactor furnace cover to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a reactor furnace cover sealing device, comprising a reactor body and a reactor cover, wherein a plurality of sealing components are provided around the top of the reactor body, and when the reactor cover is placed on the reactor body, the sealing components apply downward pressure to it, so that the reactor cover and the reactor body fit tightly together, and a sealing ring is provided at the bottom of the reactor cover or at the top of the reactor body;

[0006] The sealing assembly includes a support, a rotating rod, a fixed seat, and a pressure rod. The support is fixed to the reactor body, the rotating rod is rotatably mounted on the support, and the fixed seat is installed at the other end of the rotating rod. The pressure rod is vertically mounted on the fixed seat, and the pressure rod moves downward to contact the reactor lid and apply pressure.

[0007] Furthermore, the pressure rod is a screw structure, the pressure rod is threadedly connected to the fixed seat, the bottom end of the pressure rod is provided with a pressure block, and the top end of the pressure rod is provided with a handle.

[0008] Furthermore, a bearing is embedded in the support, the rotating rod is mounted on the bearing, and an explosion-proof ring is provided at the top of the support, with the explosion-proof ring located above the bearing.

[0009] Furthermore, an explosion-proof cylinder is provided at the top of the vessel lid, the explosion-proof cylinder is connected to the reactor body, an exhaust pipe is connected to the side end of the explosion-proof cylinder, a flange is detachably provided at the top of the explosion-proof cylinder, and an explosion-proof membrane is provided between the flange and the explosion-proof cylinder.

[0010] Furthermore, the explosion-proof film is an aluminum film.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This device replaces manual mud application with a mechanical pressure structure, freeing the kettle lid sealing process from the tedious cleaning, filling, and compaction. The operator only needs to perform two actions: horizontal rotation positioning and vertical locking, to complete the sealing loading in a very short time. There is no need for cleaning up any residue when opening the lid. This fundamentally breaks the constraints of traditional processes on production continuity and sealing effectiveness, while avoiding the risk of slippage and loosening of traditional friction locking structures. This ensures that carbonization capacity is no longer limited by the efficiency of the sealing operation.

[0013] 2. Through the synergistic effect of the dynamic elastic sealing ring and the mechanical explosion-proof interception structure, this device achieves an adaptive and tight fit between the vessel lid and the vessel body, while also giving the device the ability to resist sudden high-pressure impacts. The dual protection of the explosion-proof membrane for directional pressure relief and the explosion-proof ring for rigid locking safely diverts the high-pressure impact energy and prevents the risk of the rotating rod mechanism from detaching from the support. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a reactor furnace cover sealing device according to the present invention;

[0015] Figure 2 This is a front view of the sealing component of this utility model.

[0016] In the figure, the components are: reactor body-1, reactor cover-2, sealing assembly-3, support-4, rotating rod-5, fixed seat-6, pressure rod-7, pressure block-8, throttle-9, bearing-10, explosion-proof ring-11, explosion-proof cylinder-12, exhaust pipe-13, flange-14, and explosion-proof membrane-15. Detailed Implementation

[0017] 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 without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1 and Figure 2 As shown, a reactor furnace cover sealing device includes a reactor body 1 and a reactor cover 2. The top of the reactor body 1 is provided with a plurality of sealing components 3 at equal intervals. When the reactor cover 2 is placed on the reactor body 1, the sealing components 3 will apply downward pressure to it, so that the reactor cover 2 is tightly fitted to the reactor body. A sealing ring is provided at the bottom of the reactor cover 2 or at the top of the reactor body 1.

[0019] The sealing assembly 3 includes a support 4, a rotating rod 5, a fixed seat 6, and a pressure rod 7. The support 4 is fixed to the reactor body 1. The rotating rod 5 is rotatably mounted on the support 4, and the fixed seat 6 is installed at the other end of the rotating rod 5. The pressure rod 7 is lifted and mounted on the fixed seat 6. The pressure rod 7 has a screw structure and is threadedly connected to the fixed seat 6. A pressure block 8 is provided at the bottom end of the pressure rod 7, and a handle 9 is provided at the top end of the pressure rod 7.

[0020] The working principle of this device is as follows: After the raw bamboo is hoisted into the reactor body 1, the reactor lid 2 is hoisted to the top of the reactor body 1 and placed. At this time, the pressure block 8 of the sealing component 3 has not yet contacted the reactor lid 2. The operator rotates the rotating rod 5 to drive the fixed seat 6 to move horizontally to directly above the edge of the reactor lid 2. The operator rotates the handle 9 at the top of the pressure rod 7 to drive the pressure rod 7 to descend vertically. The pressure block 8 at the bottom of the pressure rod 7 contacts the surface of the reactor lid 2 and continuously applies controllable downward pressure, forcing the reactor lid 2 to fit tightly against the reactor body. The sealing ring is pre-installed in the groove at the bottom of the reactor lid 2 or the top of the reactor body. Conversely, when it is necessary to open the lid, the pressure rod 7 is driven to rise vertically, and then the fixed seat 6 is moved away from the interface above the reactor lid 2.

[0021] When the pressure rod 7 applies pressure, the contact surface between the vessel cover 2 and the reactor body 1 is squeezed, and the sealing ring undergoes elastic deformation. The deformed sealing ring fills the micro gaps in the contact surface, forming a physical sealing barrier to prevent the leakage of the reaction medium.

[0022] In this embodiment, a bearing 10 is embedded in the support 4, and the rotating rod 5 is welded to the bearing 10. An explosion-proof ring 11 is welded to the top of the support 4, and the explosion-proof ring 11 is located above the bearing 10. The rotating rod 5 achieves low-friction rotation through the bearing 10 embedded in the support 4. When the high-pressure medium generates an upward impact force on the reactor lid 2, the explosion-proof ring 11 covers the bearing 10 installation position at the top of the support 4 with a ring structure, forming an axial displacement limiting lock. Its inner diameter is smaller than the outer ring diameter of the bearing 10, ensuring that the impact force cannot break through the ring body and preventing the bearing 10 and the rotating rod 5 from detaching from the support 4 and causing structural disintegration.

[0023] In this embodiment, an explosion-proof cylinder 12 is provided at the top of the vessel cover 2. The explosion-proof cylinder 12 is connected to the reactor body 1. An exhaust pipe 13 is connected to the side end of the explosion-proof cylinder 12. A flange 14 is detachably provided at the top of the explosion-proof cylinder 12. An explosion-proof membrane 15 is provided between the flange 14 and the explosion-proof cylinder 12. The explosion-proof membrane 15 is an aluminum membrane.

[0024] The explosion-proof cylinder 12 at the top of the vessel lid 2 is connected to the inner cavity of the reactor. The internal pressure is transmitted to the exhaust pipe 13 through the explosion-proof cylinder 12. Under normal pressure, the gas can be discharged in a controlled manner through the exhaust pipe 13. When the reaction is abnormal and the pressure rises suddenly, the overpressure impacts the explosion-proof membrane 15 (aluminum membrane) at the top of the explosion-proof cylinder 12. The aluminum membrane breaks instantly due to its low preset burst strength, forming an emergency pressure relief port, thereby preventing the high pressure impact from damaging the overall structure of the vessel lid 2 and the sealing assembly 3. The flange 14 is detachably connected to the explosion-proof cylinder 12, which facilitates the replacement of the damaged explosion-proof membrane 15.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A reactor furnace cover sealing device, comprising a reactor body and a reactor cover, characterized in that: The top of the reactor body is provided with several sealing components. When the reactor lid is placed on the reactor body, the sealing components will apply downward pressure to it, so that the reactor lid and the reactor body fit tightly together. A sealing ring is provided at the bottom of the reactor lid or the top of the reactor body. The sealing assembly includes a support, a rotating rod, a fixed seat, and a pressure rod. The support is fixed to the reactor body, the rotating rod is rotatably mounted on the support, and the fixed seat is installed at the other end of the rotating rod. The pressure rod is vertically mounted on the fixed seat, and the pressure rod moves downward to contact the reactor lid and apply pressure.

2. The reactor furnace cover sealing device according to claim 1, characterized in that: The pressure rod is a screw structure, and the pressure rod is threadedly connected to the fixed seat. A pressure block is provided at the bottom end of the pressure rod, and a throttle handle is provided at the top end of the pressure rod.

3. The reactor furnace cover sealing device according to claim 1, characterized in that: The support is fitted with a bearing, the rotating rod is mounted on the bearing, and an explosion-proof ring is provided at the top of the support, with the explosion-proof ring located above the bearing.

4. The reactor furnace cover sealing device according to claim 1, characterized in that: The top of the vessel lid is provided with an explosion-proof cylinder, which is connected to the reactor body. An exhaust pipe is connected to the side end of the explosion-proof cylinder. A flange is detachably provided at the top of the explosion-proof cylinder, and an explosion-proof membrane is provided between the flange and the explosion-proof cylinder.

5. A reactor furnace cover sealing device according to claim 4, characterized in that: The explosion-proof film is an aluminum film.