Assembled graphite heat preservation cylinder

Abstract

The utility model belongs to the technical field of graphite heat preservation cylinders, and particularly discloses an assembled graphite heat preservation cylinder. A first pull rod penetrates through the center of the top of the first cylinder; the lower end of the first pull rod is fixedly connected with the center of the top of a second cylinder; a second pull rod penetrates through the center of the top of the second cylinder; the lower end of the second pull rod is fixedly connected with a third cylinder; the top end of the first pull rod and the top end of the second pull rod are protruding rings extending towards the periphery, the top end of the first pull rod is located outside the first cylinder and larger than an opening in the top end of the first cylinder, and the top end of the second pull rod is located outside the second cylinder and larger than an opening in the top end of the second cylinder. According to the heat preservation barrel, the lifting plate drives the multiple stages of barrel bodies to axially move, the contact area of the nested structure can be adjusted, cooperative control over the thickness of a heat preservation layer and a heat dissipation channel is achieved, independent replacement can be achieved, and cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to graphite heat preservation cylinder technical field, concretely is a kind of assembled graphite heat preservation cylinder. BACKGROUND

[0002] Graphite heat preservation cylinder is a kind of heat preservation device processed with graphite as raw material, and graphite heat preservation cylinder has chemical stability and corrosion resistance, and is mainly used for heat preservation of furnace body, and plays the role of heat insulation.

[0003] The existing graphite heat preservation cylinder adopts integral structure and is sleeved on the furnace body, and the graphite heat preservation cylinder is not convenient to place, the outer layer of the graphite heat preservation cylinder is not well protected, the graphite heat preservation cylinder is easily damaged, the integral graphite heat preservation cylinder is locally damaged, the whole graphite heat preservation cylinder is invalid, resources are wasted, and the cost is high.

[0004] In some chemical or physical reactions, graphite heat preservation cylinder is often needed for heat preservation, but in the heat dissipation stage after heat preservation is completed, the heat dissipation rate is often controlled in stages to prevent the equipment from generating temperature difference stress due to too fast heat dissipation, and therefore an assembled graphite heat preservation cylinder needs to be provided. INVENTION CONTENTS

[0005] The application provides an assembled graphite heat preservation cylinder. The heat preservation cylinder is nested in layers, cooperates with a program-controlled lifting mechanism, realizes accurate heat preservation according to the design target of the production process, and reduces resource waste due to local damage and whole invalidation through the nested structure.

[0006] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0007] An assembled graphite heat preservation cylinder comprises a lifting plate, the lifting plate is fixedly connected to the top of a first cylinder, a first pull rod is movably connected to the center of the inside of the first cylinder, the first pull rod penetrates the first cylinder and is hollow inside;

[0008] The lower end of the first pull rod is fixedly connected to the center of the top of a second cylinder, a second pull rod is movably connected to the center of the second cylinder, the second pull rod penetrates the second cylinder, the second pull rod is located inside the first pull rod and is movably connected to the first pull rod, and the lower end of the second pull rod is fixedly connected to a third cylinder;

[0009] The top end of the first pull rod and the second pull rod is a convex ring extending to the periphery, the top end of the first pull rod is located outside the first cylinder, and the convex ring is larger than the top end opening of the first cylinder; the top end of the second pull rod is located outside the second cylinder, and the convex ring thereof is larger than the top end opening of the second cylinder;

[0010] The first cylinder is in sliding connection with the second cylinder, the second cylinder is in sliding connection with the third cylinder, and the axial depth of the first cylinder is equal to the axial length of the second cylinder, and the axial depth of the second cylinder is equal to the axial length of the third cylinder.

[0011] Preferably, the heat preservation cylinder further comprises a lifting device, the lifting device comprises a nut fixedly connected with the lifting plate, and the nut is fixedly connected with a fixed plate at the upper end and the lower end of the lateral surface, respectively; the fixed plate at each end is movably connected with two symmetrically distributed sliding mechanisms in the grooves at the ends of the fixed plate, respectively; and the two sliding mechanisms are movably connected with the two lateral surfaces of the supporting rod.

[0012] The nut is in threaded connection with a lead screw, the lower end of the lead screw is movably connected with a bearing seat fixedly connected with the bottom plate, the upper end of the lead screw is movably connected with a bearing seat fixedly connected with the top plate, the lead screw penetrates through the top plate, the top end of the lead screw is fixedly connected with a first belt pulley, the first belt pulley is movably connected with a belt, the belt is movably connected with a second belt pulley, the second belt pulley is fixedly connected with a motor output shaft, the motor is fixedly connected with the top plate, the top plate is fixedly connected with the top end of the supporting rod, and the bottom end of the supporting rod is fixedly connected with the bottom plate.

[0013] Preferably, the top center of the first cylinder is fixedly connected with a first buffer ring, and the top center of the second cylinder is fixedly connected with a second buffer ring.

[0014] Preferably, the first buffer ring and the second buffer ring are polyurethane layers.

[0015] Preferably, the first belt pulley is a synchronous belt pulley, the belt is a synchronous belt, and the second belt pulley is a synchronous belt pulley.

[0016] Preferably, the motor is a stepping motor or a servo motor.

[0017] Preferably, the first cylinder, the second cylinder and the third cylinder are all in the shape of an upside-down cylinder with an open bottom and a hollow interior.

[0018] The utility model discloses the beneficial effects are:

[0019] By driving the multi-stage cylinder axial displacement through the lifting plate, the contact area of the nested structure can be adjusted, the thickness of the heat preservation layer and the heat dissipation channel are cooperatively controlled, the limitation of the traditional integral structure is broken through, the modular combination scheme is adopted, the process parameter adjustment precision is significantly improved while the sealing is guaranteed, each component supports independent replacement, and the maintenance cost is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to make the technical scheme in the present application or prior art clearer, the accompanying drawings needed in the description of the embodiments or prior art will be briefly introduced. Obviously, for those skilled in the art, based on the accompanying drawings, other drawings can be obtained without any creative effort.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0022] Figure 2 It is a schematic diagram of the cross section of the heat preservation state of the present application.

[0023] Figure 3 It is a schematic diagram of the cross section of the heat dissipation state of the present application.

[0024] In the figure: 1, first cylinder; 2, second cylinder; 3, third cylinder; 4, first pull rod; 5, second pull rod; 6, first buffer ring; 7, second buffer ring; 8, lifting plate; 9, nut; 10, lead screw; 11, first belt pulley; 12, belt; 13, second belt pulley; 14, motor; 15, top plate; 16, fixed plate; 17, pulley; 18, support rod; 19, bottom plate; 20, bearing seat. DETAILED DESCRIPTION

[0025] In order to make the technical scheme in the present application or prior art clearer, the accompanying drawings needed in the description of the embodiments or prior art will be briefly introduced. Obviously, for those skilled in the art, based on the accompanying drawings, other drawings can be obtained without any creative effort.

[0026] Embodiment 1:

[0027] As shown in the accompanying drawings Figures 2-3The illustrated assembled graphite insulation cylinder includes a lifting plate 8, which is fixedly connected to the top of a first cylinder 1. A first pull rod 4 is movably connected to the center of the inside of the first cylinder 1, penetrating the first cylinder 1 and being hollow inside. The lower end of the first pull rod 4 is fixedly connected to the center of the top of a second cylinder 2. A second pull rod 5 is movably connected to the center of the second cylinder 2, penetrating the second cylinder 2 and located inside the first pull rod 4, and movably connected to it. The lower end of the second pull rod 5 is fixedly connected to a third cylinder 3. The top ends of both the first pull rod 4 and the second pull rod 5 extend outwards. The protruding rings of the first pull rod 4 are located on the outside of the first cylinder 1, and the protruding ring is larger than the opening at the top of the first cylinder 1; the top of the second pull rod 5 is located on the outside of the second cylinder 2, and its protruding ring is larger than the opening at the top of the second cylinder 2. When the first cylinder 1 rises until the second cylinder is fully exposed, it drives the first pull rod 4 to rise; when the second cylinder rises until the third cylinder is fully exposed, it drives the second pull rod 5 to rise, which in turn drives the second cylinder 2 and the third cylinder 3 to rise. This achieves coordinated control of the insulation layer thickness and the heat dissipation channel. After the third cylinder 3 rises to the designated height, the reaction product can be removed from the reaction vessel at the bottom of the third cylinder 3. When heat preservation is required for the reaction, the above process is reversed.

[0028] It should be noted that the first cylinder 1 is slidably connected to the second cylinder 2, and the second cylinder 2 is slidably connected to the third cylinder 3. The axial depth inside the first cylinder 1 is equal to the overall axial length of the second cylinder 2, and the axial depth inside the second cylinder 2 is equal to the overall axial length of the third cylinder 3. On the one hand, this can reduce the gap between the insulation cylinders and enhance the insulation performance. On the other hand, it can prevent the inner cylinder from being longer than the outer cylinder, which would lead to uneven stress and damage.

[0029] Example 2:

[0030] like Figure 1 The image shows an assembled graphite insulation cylinder, which also includes a lifting device. The lifting device includes a nut 9 fixedly connected to a lifting plate 8. The upper and lower ends of the nut 9 are each connected to a fixing plate 16. Two symmetrically distributed sliding mechanisms 17 are movably connected in the groove at the end of each fixing plate 16. The two sliding mechanisms 17 are movably connected to the two sides of the support rod 18.

[0031] The nut 9 is threadedly connected to the lead screw 10. The lower end of the lead screw 10 is movably connected to the bearing seat 20 fixedly connected to the base plate 19. The upper end of the lead screw 10 is movably connected to the bearing seat 20 fixedly connected to the top plate 15. The lead screw 10 passes through the top plate 15. The top end of the lead screw 10 is fixedly connected to the first pulley 11. The first pulley 11 is movably connected to the belt 12. The belt 12 is movably connected to the second pulley 13. The second pulley 13 is fixedly connected to the output shaft of the motor 14. The motor 14 is fixedly connected to the top plate 15. The top plate 15 is fixedly connected to the top end of the support rod 18. The bottom end of the support rod 18 is fixedly connected to the base plate 19.

[0032] The rotation of the output shaft of motor 14 drives the second pulley 13 to rotate, the second pulley 13 drives the belt 12 to rotate, and the belt 12 drives the first pulley 11 to rotate. The diameter of the second pulley 13 is smaller than that of the first pulley 11, which can enhance the output rotation torque, reduce the motor load torque, and reduce the error.

[0033] The first pulley drives the lead screw 10 to rotate, and the lead screw 10 drives the nut 9 to move vertically. The nut 9 has a fixed plate 16 and a sliding mechanism 17 fixed on its side. Two opposing sliding mechanisms 17 fixed by the same fixed plate 16 clamp the support rod 18 in the middle, so that the nut 13 can only move vertically and cannot rotate with the lead screw, thereby driving the lifting plate 8 to move vertically.

[0034] For the sliding mechanism 17, a cylindrical pulley or a square slider can be selected. The support rod 18 is provided with right-angle grooves on both sides. When the side of the cylindrical pulley or square slider contacts the side of the right-angle groove, it can provide a reaction force to counteract the uneven force on the nut 9, so that the screw 14 and the nut 9 can be evenly stressed, reducing the wear between the nut 9 and the screw 10, making the movement more stable, reducing frictional resistance, and extending the service life.

[0035] Example 3:

[0036] As attached Figures 1-3 As shown, the top center of the first cylinder 1 is fixedly connected to the first buffer ring 6, and the top center of the second cylinder 2 is fixedly connected to the second buffer ring 7. When the first cylinder 1 rises to the lower edge of the boss of the first pull rod 4, the first cylinder 1 will have a certain speed, while the first pull rod 4 remains stationary. An impact will occur when the two come into contact. By setting the first buffer ring 6, the two are in soft contact, reducing the impact. When the second cylinder 2 rises to the lower edge of the boss of the second pull rod 5, the second cylinder 2 will have a certain speed, while the second pull rod 5 remains stationary. An impact will occur when the two come into contact. By setting the second buffer ring 7, the two are in soft contact, reducing the impact, improving the overall operational stability, reducing the risk of damage, and increasing service life.

[0037] The first buffer ring 10 and the second buffer ring 11 are polyurethane layers, which enhance the durability of the buffer rings, reduce the impact between components, and enhance the sealing performance.

[0038] The first belt wheel 11 is a synchronous belt wheel, the belt 12 is a synchronous belt, and the second belt wheel 13 is a synchronous belt wheel. The transmission ratio is accurate, there is no slip, the transmission is stable, the shock can be absorbed, the noise is small, the height of lifting can be accurately controlled, and the process of heat dissipation can be accurately controlled.

[0039] The motor 14 is a stepping motor or a servo motor. The number of rotation circles and the rotation speed of the motor 14 can be controlled through a controller program, so as to control the height and speed of lifting, accurately control the rhythm of heat preservation and heat dissipation, and ensure synchronization with the reaction process.

[0040] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. The scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model, and any figure mark in the claims should not be regarded as limiting the involved claims.

Claims

1. An assembled graphite muffle, characterized by: The lifting plate (8) is fixedly connected with the top of the first cylinder (1), the first pull rod (4) is movably connected with the inside center of the first cylinder (1), and the first pull rod (4) penetrates the first cylinder (1) and is hollow inside; The lower end of the first pull rod (4) is fixedly connected with the top center of the second cylinder (2), the second pull rod (5) is movably connected with the center of the second cylinder (2), the second pull rod (5) penetrates the second cylinder (2) and is located inside the first pull rod (4) and movably connected with the first pull rod (4), and the lower end of the second pull rod (5) is fixedly connected with the third cylinder (3). The top end of the first pull rod (4) and the second pull rod (5) is a convex ring extending to the periphery, the top end of the first pull rod (4) is located outside the first cylinder (1), and the convex ring is larger than the top opening of the first cylinder (1); the top end of the second pull rod (5) is located outside the second cylinder (2), and the convex ring thereof is larger than the top opening of the second cylinder (2). The first cylinder (1) and the second cylinder (2) are slidably connected, the second cylinder (2) and the third cylinder (3) are slidably connected, and the axial depth of the first cylinder (1) inside is equal to the overall axial length of the second cylinder (2), and the axial depth of the second cylinder (2) inside is equal to the overall axial length of the third cylinder (3).

2. The assembled graphite muffle according to claim 1, characterized in that: The heat preservation cylinder further comprises a lifting device, the lifting device comprises a nut (9) fixedly connected with the lifting plate (8), and the upper and lower ends of the side surface of the nut (9) are respectively connected with fixed plates (16); the ends of the fixed plates (16) are movably connected with two symmetrically distributed sliding mechanisms (17) in the grooves at the ends, respectively; and the two sliding mechanisms (17) are movably connected with the two side surfaces of a supporting rod (18). The nut (9) is threadedly connected with a lead screw (10), the lower end of the lead screw (10) is movably connected with a bearing seat (20) fixedly connected with a bottom plate (19), the upper end of the lead screw (10) is movably connected with a bearing seat (20) fixedly connected with a top plate (15), the lead screw (10) penetrates the top plate (15), the top end of the lead screw (10) is fixedly connected with a first belt pulley (11), the first belt pulley (11) is movably connected with a belt (12), the belt (12) is movably connected with a second belt pulley (13), the second belt pulley (13) is fixedly connected with an output shaft of a motor (14), the motor (14) is fixedly connected with the top plate (15), the top plate (15) is fixedly connected with the top end of the supporting rod (18), and the bottom end of the supporting rod (18) is fixedly connected with the bottom plate (19).

3. The assembled graphite muffle according to claim 1, characterized in that: The top center of the first cylinder (1) is fixedly connected with a first buffer ring (6), and the top center of the second cylinder (2) is fixedly connected with a second buffer ring (7).

4. The assembled graphite holding cylinder according to claim 3, characterized in that: The first buffer ring (6) and the second buffer ring (7) are polyurethane layers.

5. The assembled graphite muffle according to claim 2, wherein: The first belt pulley (11) is a synchronous belt pulley, the belt (12) is a synchronous belt, and the second belt pulley (13) is a synchronous belt pulley.

6. The assembled graphite muffle according to claim 2, wherein: The motor (14) is a stepping motor or a servo motor.

7. The assembled graphite muffle according to claim 1, wherein: The overall shapes of the first cylinder (1), the second cylinder (2) and the third cylinder (3) are all inverted cylindrical shapes with open bottoms and hollow interiors.

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