Sealing cover mounting structure for charging hole of rotary reaction kettle

Abstract

The utility model relates to a sealing cover mounting structure of a charging hole of a rotary reaction kettle, and belongs to the technical field of reaction kettles. The reaction kettle comprises a kettle body, a sealing cover and gland assemblies, the sealing cover is arranged on a feeding port of the kettle body in a matched mode and enables the feeding port of the kettle body to be switched between an opening state and a closing state, and each gland assembly comprises a movable buckle arm, a connecting stud, a bearing seat, a plane bearing, a bearing gland and a limiting stud. When the feeding port of the kettle body is in a closed state and clamping holes in the two ends of the movable buckle arm are in clamping fit with connecting rods of the limiting studs respectively, the connecting studs are rotated until the lower end faces of the limiting columns abut against the upper end faces of the plane bearings; the two ends of the movable buckle arm abut against the limiting ends of the connecting stud respectively through counter-acting force generated by continuously rotating the connecting stud. And when the charging hole of the kettle body needs to be opened, the connecting stud only needs to be reversely rotated and operated. The sealing cover can be conveniently and quickly opened and closed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of sealing cover mounting structure of rotary reaction kettle feeding opening, belong to reaction kettle technical field. BACKGROUND

[0002] Part of rotary reaction kettle is designed and manufactured with feeding opening for large solid material in reaction kettle shell. Generally, reaction kettle has sealing requirement when working, so the sealing cover of reaction kettle feeding opening is generally designed to be relatively thick and heavy, and flange type is generally used and connected and fastened using bolts, but the defect of this design is that it is more laborious to disassemble and assemble the sealing cover for feeding, and it takes a long time, which not only consumes manpower, but also affects the continuity of process production. INVENTION CONTENTS

[0003] The technical problem to be solved by the utility model is to provide a sealing cover mounting structure of rotary reaction kettle feeding opening, which can conveniently and quickly open and close the sealing cover.

[0004] The utility model provides a technical scheme that is adopted to solve the above technical problems, which is a sealing cover mounting structure of a rotary reaction kettle feeding opening, comprising a kettle body, a sealing cover and a gland assembly, the sealing cover is arranged at the feeding opening of the kettle body and enables the feeding opening of the kettle body to be switched between an open state and a closed state, each gland assembly comprises a movable clasp arm, a connecting stud, a bearing seat, a plane bearing, a bearing gland and a limiting stud, the limiting studs are fixedly arranged at the two sides outside the feeding opening of the kettle body, the limiting stud comprises a connecting rod and a limiting end, the connecting rod is fixedly connected with the kettle body, the limiting end is located at the end of the connecting rod away from the kettle body, the middle part of the movable clasp arm is provided with a threaded hole matched with the connecting stud, the middle part of the connecting stud is connected with the threaded hole in the middle part of the movable clasp arm, the two ends of the movable clasp arm are provided with clamping holes corresponding to the limiting studs, the side wall of the clamping hole is provided with a clamping opening matched with the connecting rod, and the connecting rod can be clamped into the clamping hole from the side of the clamping hole through the clamping opening and separated from the clamping hole; the bearing seat is fixedly arranged at the middle region of the top surface of the sealing cover, the top of the bearing seat is provided with a bearing mounting blind hole, the plane bearing is mounted in the bearing mounting blind hole, the plane bearing is coaxially arranged with the connecting stud, and the bearing gland is fixedly arranged at the outer end surface of the bearing mounting blind hole; the lower end of the connecting stud is coaxially fixedly arranged with a limiting cylinder, the bearing gland is provided with a gland limiting hole for gap cooperation of the connecting stud, the limiting cylinder is gap cooperatively arranged in the bearing mounting blind hole and located at the position above the plane bearing, and the outer diameter of the limiting cylinder is greater than the inner diameter of the gland limiting hole; the axial direction of the connecting stud and the axial direction of the limiting stud are consistent with the axial direction of the feeding opening of the kettle body, when the feeding opening of the kettle body is in the closed state and the clamping holes at the two ends of the movable clasp arm respectively form clamping cooperation with the connecting rods of the limiting studs, after the lower end surface of the limiting cylinder abuts against the upper end surface of the plane bearing by rotating the connecting stud, the reaction force generated by continuously rotating the connecting stud can make the two ends of the movable clasp arm abut against the limiting end of the connecting stud.

[0005] To facilitate machining operation and improve structural reliability, preferably, the gland assembly comprises a copper nut and a retreat stop cover, the inner hole of the copper nut is used as the threaded hole matched with the connecting stud for the movable clasp arm, the movable clasp arm is provided with a nut mounting blind hole, the copper nut is arranged in the nut mounting blind hole, the outer peripheral surface of the copper nut is in interference fit with the nut mounting blind hole, the retreat stop cover is fixedly arranged at the outer end surface of the nut mounting blind hole, and the retreat stop cover is provided with a retreat stop cover central hole for gap cooperation of the connecting stud, and the inner diameter of the retreat stop cover central hole is smaller than the outer diameter of the copper nut.

[0006] To facilitate machining operation and improve structural reliability, preferably, the retreat stop cover is fixedly arranged at the outer end surface of the nut mounting blind hole through a countersunk screw.

[0007] For convenient processing operation and improving structural reliability, the preferred scheme is that the bearing gland is made up of two gland units arranged in left-right symmetry, and the bearing gland is fastened and connected to the bearing seat by bolts.

[0008] For convenient processing operation, the preferred scheme is that the upper end of the connecting stud is fixedly provided with a square stud head coaxially.

[0009] For convenient processing operation and improving structural reliability, the preferred scheme is that the connecting rod of the limiting stud is fixedly connected to the kettle body through a threaded connection structure, and the part where the connecting rod of the limiting stud cooperates with the movable buckle arm is a smooth cylindrical surface.

[0010] For further improving structural reliability, the preferred scheme is that multiple pressure cover assemblies are arranged at intervals along the length direction of the sealing cover.

[0011] For further facilitating the quick opening and closing of the sealing cover, the preferred scheme is that the sealing cover is provided with a lifting arm, a lifting arm seat and a pin shaft, the lifting arm seat is fixedly arranged on the kettle body, one end of the lifting arm is rotatably connected to the lifting arm seat through the pin shaft, the other end of the lifting arm is fixedly connected to the sealing cover, and the sealing cover can switch the charging port of the kettle body between the open state and the closed state when the sealing cover rotates around the pin shaft through the lifting arm.

[0012] For further improving the sealing reliability of the structure, the preferred scheme is that a sealing gasket is fixedly arranged on the sealing cover, and the sealing gasket is located on the sealing contact surface where the sealing cover cooperates with the charging port of the kettle body.

[0013] The beneficial effects of the utility model are as follows: when it is needed to close the charging port of the kettle body, the sealing cover is first used to close the charging port of the kettle body in the conventional way, then the movable buckle arm is rotated, the clamping openings at the two ends of the movable buckle arm are clamped into the connecting rods of the limiting studs, the clamping holes at the two ends of the movable buckle arm are respectively formed in clamping cooperation with the connecting rods of the limiting studs, and finally the connecting stud is rotated, after the lower end surface of the limiting cylinder and the upper end surface of the plane bearing are abutted, the counterforce generated by the continuous rotation of the connecting stud can make the movable buckle arm as a whole be lifted upward, and then the two ends of the movable buckle arm are abutted against the limiting heads of the connecting studs, so that the purpose of pressing the sealing cover by the connecting studs is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1This is a schematic diagram of the elevation structure of this utility model.

[0015] Fig. 2 This is a top view of the present invention when the engaging holes at both ends of the movable buckle arm and the connecting rod of the limiting stud are respectively engaged.

[0016] Fig. 3 This is a top view of the present invention when the engaging holes at both ends of the movable buckle arm and the connecting rod of the limiting stud are in a separated state.

[0017] The components in the diagram are marked as follows: 1. Cauldron body; 2. Sealing cover; 3. Movable latch arm; 31. Engaging hole; 4. Copper nut; 5. Connecting stud; 51. Limiting cylinder; 52. Square cylinder end; 6. Anti-reverse cover; 7. Bearing seat; 8. Flat bearing; 9. Bearing cover; 10. Limiting stud; 11. Lifting arm; 12. Lifting arm seat; 13. Pin; 14. Sealing gasket. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] like Figs. 1 to 3As shown, this utility model includes a vessel body 1, a sealing cap 2, and a pressure cap assembly. The sealing cap 2 is disposed at the feeding port of the vessel body 1, enabling the feeding port of the vessel body 1 to switch between an open and closed state. Each pressure cap assembly includes a movable latching arm 3, a connecting stud 5, a bearing seat 7, a plane bearing 8, a bearing pressure cap 9, and a limiting stud 10. The limiting stud 10 is fixedly disposed on both sides of the external surface of the feeding port of the vessel body 1. The limiting stud 10 includes a connecting rod and a limiting end. The connecting rod is fixedly connected to the vessel body 1, and the limiting end is located at the connecting rod. The end of the connecting rod away from the vessel body 1 has a threaded hole in the middle of the movable latching arm 3 that matches the connecting stud 5. The middle of the connecting stud 5 is connected to the threaded hole in the middle of the movable latching arm 3. Both ends of the movable latching arm 3 have engagement holes 31 that correspond one-to-one with the limiting studs 10. The side wall of the engagement hole 31 has an engagement opening that matches the connecting rod. The connecting rod can be inserted into the engagement hole 31 through the engagement opening from the side of the engagement hole 31 and can be disengaged from the engagement hole 31. The bearing seat 7 is fixedly installed in the top surface of the sealing cover 2. In the bearing housing 7, the top has a blind hole for bearing mounting. A planar bearing 8 is installed in the blind hole and is coaxially arranged with the connecting stud 5. A bearing cap 9 is fixedly installed on the outer end face of the blind hole. A limiting cylinder 51 is coaxially fixedly installed at the lower end of the connecting stud 5. The bearing cap 9 has a cap limiting hole for the connecting stud 5 to pass through with clearance fit. The limiting cylinder 51 is clearance fitly installed in the blind hole and located above the planar bearing 8. The outer diameter of the limiting cylinder 51 is larger than that of the cap limiting hole. The inner diameter of the positioning hole; the axial direction of the connecting stud 5 and the axial direction of the limiting stud 10 are consistent with the axial direction of the feeding port of the vessel body 1. When the feeding port of the vessel body 1 is closed, and the engaging holes 31 at both ends of the movable latching arm 3 and the connecting rod of the limiting stud 10 respectively form a latching fit, by rotating the connecting stud 5 until the lower end face of the limiting cylinder 51 abuts against the upper end face of the plane bearing 8, the reaction force generated by continuing to rotate the connecting stud 5 can make both ends of the movable latching arm 3 abut against the limiting end of the connecting stud 5 respectively.

[0020] In practice, when it is necessary to close the feed port of the vessel body 1, the sealing cover 2 is first used to close the feed port of the vessel body 1 in the conventional manner. Then, the movable latching arm 3 is rotated so that the latching openings at both ends of the movable latching arm 3 engage with the connecting rod of the limiting stud 10 until the latching holes 31 at both ends of the movable latching arm 3 and the connecting rod of the limiting stud 10 respectively form a latching fit. Finally, the connecting stud 5 is rotated. After the lower end face of the limiting cylinder 51 abuts against the upper end face of the plane bearing 8, the reaction force generated by continuing to rotate the connecting stud 5 can make the movable latching arm 3 lift upward as a whole, so that the two ends of the movable latching arm 3 abut against the limiting end of the connecting stud 10 respectively, thereby achieving the purpose of pressing the sealing cover 2 by the connecting stud 5. When it is necessary to open the feed port of the reactor body 1, simply rotate the connecting stud 5 in the reverse direction so that the two ends of the movable latching arm 3 are no longer pressed against the limiting end of the connecting stud 10, thus separating the two ends of the movable latching arm 3 from the limiting stud 5. At this time, the sealing cover 2 can be opened in the conventional manner. Depending on the shape of the sealing cover 2, this invention can design one or more capping assemblies. For example, for a circular sealing cover, this invention can design only one capping assembly in the middle position. For a rectangular or approximately rectangular sealing cover, multiple capping assemblies can be spaced along the length of the sealing cover 2 to fully ensure sealing performance. Compared with the traditional flange-type sealing cover (which requires simultaneous disassembly and assembly of multiple bolts), this invention effectively simplifies the operation of opening or closing the feed port sealing cover of the rotary reactor, improving production efficiency.

[0021] More specifically, the planar bearing 8 is a standard part in this field, mainly used to ensure that the two connected objects above and below can rotate freely. In this utility model, the function of the planar bearing 8 is that when the lower end face of the limiting cylinder 51 of the connecting stud 5 abuts against the upper end face of the planar bearing 8, the connecting stud 5 can still rotate normally after the sealing cover 2 is axially pressed.

[0022] In some embodiments, the threaded hole for the movable latching arm 3 to mate with the connecting stud 5 can be directly machined on the movable latching arm 3. A preferred embodiment is that the gland assembly includes a copper nut 4 and a retaining cap 6. The inner hole of the copper nut 4 serves as the threaded hole for the movable latching arm 3 to mate with the connecting stud 5. The movable latching arm 3 has a blind hole for nut installation, and the copper nut 4 is disposed within this blind hole, with its outer circumferential surface forming an interference fit with the blind hole. The retaining cap 6 is fixedly disposed on the outer end face of the blind hole. The retaining cap 6 has a central hole for the connecting stud 5 to pass through with a clearance fit; the inner diameter of the central hole is smaller than the outer diameter of the copper nut 4. Compared to a regular threaded hole, the copper nut 4 has better durability in humid and corrosive working environments. To facilitate machining and improve structural reliability, the retaining cap 6 is generally fixed to the outer end face of the blind hole using a countersunk screw. The main function of the retaining cap 6 is to prevent the copper nut 4 from loosening and dislodging from the blind hole.

[0023] To facilitate processing and improve structural reliability, the bearing cover 9 is assembled from two cover units arranged symmetrically on the left and right sides. The bearing cover 9 is fastened to the bearing seat 7 by bolts.

[0024] To facilitate machining operations, a square column end 52 is coaxially fixed to the upper end of the connecting stud 5. The square column end 52 is mainly used to attach a wrench or socket tool to facilitate tightening operations on the connecting stud 5.

[0025] To facilitate processing and improve structural reliability, the connecting rod of the limiting stud 10 is fixedly connected to the vessel body 1 via a threaded connection structure. The part of the connecting rod of the limiting stud 10 that mates with the movable latching arm 3 is a smooth cylindrical surface. This design not only simplifies and ensures a reliable connection structure but also allows for leveling after component wear (by tightening the limiting stud 10, the limiting working surface at the limiting end is positioned at a suitable height), ensuring that the tightening forces generated at both ends of the movable latching arm 3 are essentially consistent. In some alternative embodiments, the limiting stud 10 can also be directly welded to the vessel body 1. It is understood that the shape of the engaging holes 31 at both ends of the movable latching arm 3 should match the shape of the connecting rod of the limiting stud 10. In this embodiment, the engaging holes 31 are preferably designed to be circular, the engaging opening is preferably a straight opening, and the width of the engaging opening is preferably the same as that of the engaging holes 31. To further facilitate the connecting rod's insertion from the engaging opening, a chamfered structure is preferably designed on the outer end face of the engaging opening.

[0026] To further facilitate the rapid opening and closing of the sealing cap 2, a preferred solution is as follows: The sealing cap includes a lifting arm 11, a lifting arm base 12, and a pin 13. The lifting arm base 12 is fixedly mounted on the vessel body 1 (either bolted or welded). One end of the lifting arm 11 is rotatably connected to the lifting arm base 12 via the pin 13, and the other end of the lifting arm 11 is fixedly connected to the sealing cap 2 (generally welded). When the sealing cap 2 rotates around the pin 13 via the lifting arm 11, the feeding port of the vessel body 1 can switch between an open and closed state. This is equivalent to the sealing cap 2 adopting a rotary opening and closing structure, thus eliminating the need for an additional device for temporarily storing the sealing cap 2 after opening.

[0027] To further improve the sealing reliability of the structure, the preferred solution is that a sealing gasket 14 is fixedly installed on the sealing cover 2, and the sealing gasket 14 is located on the sealing contact surface where the sealing cover 2 and the feed port of the vessel body 1 cooperate.

[0028] The specific parameters (material, strength, and fitting dimensions) of this utility model are determined according to the actual practical situation. For example, the diameter of the limiting cylinder 51 at the lower end of the connecting stud 5 can be designed to be 1mm to 2mm smaller than the inner diameter of the bearing mounting blind hole on the bearing seat 7, and the inner diameter of the cap limiting hole of the bearing cap 9 can be designed to be 2mm to 3mm larger than the outer diameter of the thread of the connecting stud 5, to ensure that the connecting stud 5 can rotate freely as a whole.

Claims

1. A rotary autoclave charging port seal cover mounting structure, comprising an autoclave body (1), a seal cover (2) and a gland assembly, the seal cover (2) is arranged at the charging port of the autoclave body (1), and the charging port of the autoclave body (1) can be switched between an open state and a closed state, characterized in that: Each gland assembly comprises a movable buckle arm (3), a connecting stud (5), a bearing seat (7), a plane bearing (8), a bearing gland (9) and a limiting stud (10), the limiting stud (10) is fixedly arranged at the both sides of the charging port outside the kettle body (1), the limiting stud (10) comprises a connecting rod and a limiting end, the connecting rod is fixedly connected with the kettle body (1), the limiting end is located at the end of the connecting rod away from the kettle body (1), the middle part of the movable buckle arm (3) has a threaded hole matched with the connecting stud (5), the middle part of the connecting stud (5) is connected with the threaded hole in the middle part of the movable buckle arm (3), the both ends of the movable buckle arm (3) have a clamping hole (31) corresponding to the limiting stud (10), the side wall of the clamping hole (31) has a clamping opening matched with the connecting rod, the connecting rod can be clamped into the clamping hole (31) through the clamping opening on the side of the clamping hole (31) and separated from the clamping hole (31); the bearing seat (7) is fixedly arranged at the middle region of the top surface of the sealing cover (2), the top of the bearing seat (7) has a bearing mounting blind hole, the plane bearing (8) is mounted in the bearing mounting blind hole, the plane bearing (8) is coaxially arranged with the connecting stud (5), the bearing gland (9) is fixedly arranged at the outer end surface of the bearing mounting blind hole; the lower end of the connecting stud (5) is coaxially fixedly arranged with a limiting cylinder (51), the bearing gland (9) has a gland limiting hole for the connecting stud (5) to pass through in clearance fit, the limiting cylinder (51) is arranged in the bearing mounting blind hole in clearance fit and located above the plane bearing (8), the outer diameter of the limiting cylinder (51) is greater than the inner diameter of the gland limiting hole; the axial direction of the connecting stud (5) and the axial direction of the limiting stud (10) are consistent with the axial direction of the charging port of the kettle body (1), when the charging port of the kettle body (1) is in the closed state and the clamping holes (31) at the both ends of the movable buckle arm (3) form clamping fit with the connecting rods of the limiting studs (10) respectively, after the lower end surface of the limiting cylinder (51) abuts against the upper end surface of the plane bearing (8) by rotating the connecting stud (5), the reaction force generated by continuously rotating the connecting stud (5) can make the both ends of the movable buckle arm (3) abut against the limiting end of the connecting stud (5) respectively.

2. The seal cover mounting structure for a rotary reaction vessel filling port according to claim 1, characterized by: The gland assembly comprises a copper nut (4) and a stop cover (6), the inner hole of the copper nut (4) is used as the threaded hole matched with the connecting stud (5) of the movable buckle arm (3), the movable buckle arm (3) is provided with a nut mounting blind hole, the copper nut (4) is arranged in the nut mounting blind hole, and the outer peripheral surface of the copper nut (4) is in interference fit with the nut mounting blind hole, the stop cover (6) is fixedly arranged at the outer end surface of the nut mounting blind hole, and the stop cover (6) has a stop cover center hole for the connecting stud (5) to pass through in clearance fit, the inner diameter of the stop cover center hole is smaller than the outer diameter of the copper nut (4).

3. The seal cover mounting structure for a rotary reaction vessel filling port according to claim 2, characterized by: The stop cover (6) is fixedly arranged at the outer end surface of the nut mounting blind hole by means of a countersunk screw.

4. The seal cover mounting structure for a rotary reaction vessel filling port according to claim 1, characterized by: The bearing gland (9) is made by splicing two gland units arranged in left-right symmetry, and the bearing gland (9) is fastened and connected to the bearing seat (7) by means of bolts.

5. The seal cover mounting structure for a rotary reaction vessel filling port according to claim 1, characterized by: The upper end of the connecting stud (5) is coaxially fixed with a square column end head (52).

6. The seal cover mounting structure for a rotary reaction vessel filling port according to claim 1, characterized by: The connecting rod of the limiting stud (10) is fixedly connected with the kettle body (1) through a threaded connection structure, and the part of the connecting rod of the limiting stud (10) matched with the movable buckle arm (3) is a smooth cylindrical surface.

7. The seal cover mounting structure for a rotary reaction vessel filling port according to any one of claims 1 to 6, characterized by: A plurality of grommet assemblies are arranged at intervals along the length direction of the sealing cover (2).

8. The seal cover mounting structure for a rotary autoclave charging port according to any one of claims 1 to 6, characterized by: The crane arm (11), the crane arm seat (12) and the pin shaft (13) are included, the crane arm seat (12) is fixedly arranged on the kettle body (1), one end of the crane arm (11) is rotatably connected with the crane arm seat (12) through the pin shaft (13), the other end of the crane arm (11) is fixedly connected with the sealing cover (2), and when the sealing cover (2) rotates around the pin shaft (13) through the crane arm (11), the feeding opening of the kettle body (1) can be switched between the open state and the closed state.

9. The seal cover mounting structure for a rotary autoclave charging port according to any one of claims 1 to 6, characterized by: A sealing gasket (14) is fixedly arranged on the sealing cover (2), and the sealing gasket (14) is located on the sealing contact surface of the sealing cover (2) matched with the feeding opening of the kettle body (1).

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