CN219607706U - Heating furnace provided with supporting ring - Google Patents

Abstract

The utility model discloses a heating furnace provided with a support ring, which comprises a furnace shell and a heat preservation cylinder arranged in the furnace shell; a plurality of groups of supporting mechanisms are arranged on the inner wall of the furnace shell at equal intervals in the circumferential direction; the support ring is provided with a plurality of support convex blocks along the circumferential direction of the outer circle of the ring body; the cross section of the supporting lug is trapezoid, round, elliptic, square or triangular; the supporting ring is fixedly arranged below the heat preservation cylinder, and the furnace shell and the heat preservation cylinder are synchronously hoisted and transported through the cooperation of the supporting convex blocks of the supporting ring and the supporting mechanism. The utility model can realize the integral transfer of the heat preservation cylinder and the furnace shell, realize the separation of the furnace shell and the heat preservation cylinder through the AGV after the transfer, facilitate the cleaning and the maintenance of the heat preservation cylinder and other thermal field components, improve the automation degree of a factory, reduce the operation risk and save the manpower and the working time.

Description

Heating furnace provided with supporting ring

Technical Field

The utility model relates to the technical field of heating furnaces, in particular to a heating furnace with a supporting ring.

Background

In the metallurgical industry, heating furnaces are conventionally referred to as industrial furnaces for heating metal to a forging temperature, including single crystal silicon furnaces, polycrystalline silicon furnaces, chemical vapor deposition furnaces, continuous heating furnaces, and chamber heating furnaces. The heating furnace for heat treatment of metals is also called a heat treatment furnace. A furnace that heats a steel ingot before blooming or makes the temperature inside the steel ingot uniform is called a soaking furnace. Broadly, heating furnaces also include soaking furnaces and heat treatment furnaces.

Industrial heating furnaces generally burn combustible gases or energize the same to heat objects to be heated during operation. The application fields of the composite material are wide, and the composite material comprises a continuous heating furnace, a chamber type heating furnace and a soaking furnace in the metallurgical industry, a heat treatment furnace for metal heat treatment, a monocrystalline silicon furnace and a polycrystalline silicon furnace in the photovoltaic field, a deposition furnace used in the preparation process of the composite material, a vacuum sintering furnace used in the powder metallurgical industry and the like.

A heat preservation cylinder is arranged in the existing heating furnace shell, a heat preservation layer can be further arranged between the shell and the heat preservation cylinder, and the heat preservation cylinder is arranged on the periphery of a thermal field and is generally divided into a plurality of vertically stacked parts. If the heat preservation cylinder needs to be cleaned and maintained, when the heat preservation cylinder is taken out, the furnace top cover needs to be opened, and each thermal field component is taken out sequentially from top to bottom and from inside to outside until the heat preservation cylinder is taken out. The heating furnace shell and the heat preservation cylinder are difficult to integrally transfer, so that the heat preservation cylinder is difficult to maintain. For this reason, chinese patent 2021233229021 provides "a bearing structure of heating furnace heat preservation part", fixedly mounted has a plurality of L type framves on the inner wall of heating furnace, and the bottom fixed mounting of L type frame has the connecting plate, sliding connection has the traction lever on the connecting plate, and the bottom of traction lever extends to the below of connecting plate and is connected with drive assembly, the bottom fixed mounting of connecting plate has the backup pad, can lift by crane the heating furnace, the centre gripping that stabilizes to the heat preservation section of thick bamboo that sets up in the heating furnace, thereby wholly shift stove outer covering and heat preservation section of thick bamboo, and wholly separate stove outer covering and heat preservation section of thick bamboo with remaining thermal field device, guarantee the stability of hoist and mount in-process, avoid the heat preservation section of thick bamboo to collide with other undetached thermal field components. However, the technology can only lift the upper heat-insulating cylinder and the furnace shell at the same time, the middle and lower heat-insulating cylinders still remain in the original thermal field, the situation that the heater needs to be removed when the remaining heat-insulating cylinders are disassembled and taken still faces the narrow space, the problem of consuming manpower and working hours is not fundamentally solved, and the probability of damaging parts of the thermal field can be increased when the thermal field parts are disassembled and assembled for many times. In addition, the supporting mechanism that the stove outer covering inner wall set up adopts the mode of centre gripping to transport the heat preservation section of thick bamboo in step, in the transportation, has the risk that the heat preservation section of thick bamboo drops.

Disclosure of Invention

The utility model aims to: the utility model aims to provide a heating furnace capable of synchronously completing integral transfer of a heat preservation cylinder, and improving the convenience and safety of transfer of the heat preservation cylinder.

The technical scheme is as follows: the utility model relates to a heating furnace provided with a support ring, which comprises a furnace shell and a heat preservation cylinder arranged in the furnace shell; a plurality of groups of supporting mechanisms are arranged on the inner wall of the furnace shell at equal intervals in the circumferential direction; the support ring is provided with a plurality of support convex blocks along the circumferential direction of the outer circle of the ring body; the cross section of the supporting lug is trapezoid, round, elliptic, square or triangular; the supporting ring is fixedly arranged below the heat preservation cylinder, and the furnace shell and the heat preservation cylinder are synchronously hoisted and transported through the cooperation of the supporting convex blocks of the supporting ring and the supporting mechanism.

Preferably, the supporting mechanism comprises a bracket fixedly arranged on the inner wall of the furnace shell and a supporting piece fixedly connected to the front end of a transverse plate of the bracket.

Preferably, the heat preservation cylinder comprises a plurality of vertically stacked heat preservation sleeves; the bottom heat preservation sleeve top end face circumference equidistant is equipped with a plurality of screw thread blind hole, the support ring circumference corresponds with the screw thread blind hole and is equipped with the counter bore, the support ring passes through bolt fixed connection in bottom heat preservation sleeve upper end.

Preferably, the furnace shell separating device further comprises an AGV trolley, wherein the AGV trolley can be supported at the bottom end of the heat preservation cylinder and drives the heat preservation cylinder to rotate so as to be separated from the furnace shell.

The beneficial effects are that: compared with the prior art, the utility model has the following advantages:

1. according to the utility model, the heat-insulating cylinder and the furnace shell can be integrally transferred, and the furnace shell and the heat-insulating cylinder are separated through an AGV after transfer, so that the heat-insulating cylinder and a heat-insulating layer attached to the heat-insulating cylinder can be cleaned and maintained conveniently;

2. the transfer automation degree of the heat preservation cylinder is improved, and the risk of dropping and damaging the heat preservation cylinder when the heat preservation cylinder is manually taken out is reduced;

3. the difficulty of the disassembly and assembly operation of the heat preservation cylinder is reduced, and the manpower and working hours are saved;

4. the supporting mechanism and the supporting ring are simple in structure and convenient to manufacture and install.

Drawings

FIG. 1 is a front view of a heating furnace structure of the present utility model;

FIG. 2 is a cross-sectional view of the heating furnace A-A of FIG. 1;

FIG. 3 is a sectional view of the heating furnace B-B of FIG. 1;

FIG. 4 is a schematic perspective view of the lower insulating sleeve in FIG. 2;

FIG. 5 is a schematic view of the connection structure between the lower insulating sleeve and the support ring in FIG. 2;

fig. 6 is a schematic view of a supporting mechanism distributed on the inner wall of the furnace shell in fig. 2.

Reference numerals: 1. a furnace shell; 11. a housing; 12. a shell bottom; 2. a heat preservation cylinder; 20. an upper heat-preserving sleeve; 21. a middle heat-insulating sleeve; 22. a lower heat-insulating sleeve; 3. a support ring; 31. supporting the bump; 4. a support mechanism; 5. a bracket; 6. a support sheet; 7. a threaded blind hole; 8. a countersunk hole; 9. and (5) a bolt.

Description of the embodiments

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 6 of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.

As shown in fig. 5, in a support ring, a plurality of support protrusions 31 are provided on the support ring 3 along the outer circumference of the ring body; the cross section of the supporting projection 31 is trapezoidal, circular, elliptical, square or triangular. In particular, the number of the supporting protrusions 31 circumferentially arranged on the supporting ring 3 may be two, three, four or more, and the number of the supporting protrusions 31 is set according to the requirement.

As shown in fig. 1-4 and fig. 6, a heating furnace with a supporting ring comprises a furnace shell 1 and a heat preservation cylinder 2 arranged in the furnace shell, wherein the furnace shell 1 comprises a shell bottom 12 and a shell 11 which is arranged at the upper end of the shell bottom in a separable way, connecting flanges are respectively arranged at the joints of the shell bottom 12 and the shell 11, and the shell 11 and the shell bottom 12 are fixedly connected through fixing bolts or quick connectors. A plurality of groups of supporting mechanisms 4 are arranged on the inner wall of the furnace shell 1 at equal intervals along the circumferential direction. In particular, the number of support means 4 may be three, four, five or even more, the support means 4 corresponding to the position of the support lugs 31 on the support ring 3. The supporting mechanism 4 comprises a bracket 5 fixedly arranged on the inner wall of the furnace shell 1 and a supporting sheet 6 fixedly connected to the front end of a transverse plate of the bracket; specifically, the support 5 is an L-shaped support, the support 5 is made of metal materials, such as stainless steel, the transverse plate of the support 5 is fixedly connected with the support plate 6 through bolts, and the support plate 6 and the bolts are made of carbon-carbon composite materials.

As shown in fig. 1-5, the support ring 3 is fixedly arranged under the heat insulation barrel 2, the heat insulation barrel 2 comprises a plurality of vertically stacked heat insulation sleeves, and the number of the heat insulation sleeves is set according to requirements. When only one heat preservation sleeve is arranged, the support ring 3 is arranged at the bottom of the heat preservation sleeve; when a plurality of heat preservation sleeves are arranged, the support ring 3 can be arranged at the bottom of any layer of heat preservation sleeve according to the requirement of lifting the number of the heat preservation sleeves; in an alternative embodiment, the heat insulation barrel 2 comprises an upper heat insulation sleeve 20, a middle heat insulation sleeve 21 and a lower heat insulation sleeve 22, the support ring 3 is fixedly arranged below the middle heat insulation sleeve 21, and support lugs 31 corresponding to the support mechanism 4 are arranged on the support ring 3 at equal intervals in the circumferential direction; the upper heat preservation sleeve 20, the middle heat preservation sleeve 21 and the lower heat preservation sleeve 22 are correspondingly arranged on the support ring 3, a plurality of threaded blind holes 7 are circumferentially and equidistantly arranged on the top end face of the lower heat preservation sleeve, counter sunk holes 8 are circumferentially and correspondingly arranged on the support ring 3, the support ring is fixedly connected with the lower heat preservation sleeve 22 through bolts 9, and therefore the furnace shell 1 and the heat preservation barrel 2 can be synchronously hoisted and transported through the cooperation of the support mechanism 4 and the support protruding blocks 31. Specifically, the cross section of the supporting lug 31 is isosceles trapezoid, in addition, the two sides of the supporting lug 31 can be provided with outer edges with a certain height, the heat preservation cylinder 2 is correspondingly supported on the supporting piece 6 through the supporting lug 31, and the supporting lug 31 can better clamp the supporting piece 6 when the heating furnace is hoisted. When not in hoisting, the supporting plate 6 at the front end of the bracket 5 is not contacted with the supporting convex blocks 31 of the supporting ring, so that high temperature can be prevented from being transmitted to the bracket 5 and the supporting plate 6, and the bracket 5 and the supporting plate 6 are prevented from being damaged.

And an AGV trolley (not shown in the figure) is matched with the heat preservation cylinder 2, and the AGV trolley can realize the functions by adopting the prior art. When the furnace shell 1 and the heat preservation cylinder 2 are integrally hoisted to the AGV trolley, the platform of the AGV trolley can be supported at the bottom end of the heat preservation cylinder 2 and drive the heat preservation cylinder to rotate by a certain angle, and the supporting lug 31 of the supporting ring is separated from the supporting piece 6 of the furnace shell 1 in the horizontal direction, so that the furnace shell 1 is hoisted to be separated from the heat preservation cylinder 2.

In a specific embodiment, the supporting ring 3 is annular with an outer diameter of 840mm and an inner diameter of 790mm, steps with a diameter of 820mm and a depth of 3mm are arranged on the upper side and the lower side of the inner ring of the supporting ring 3, 8 counter sunk holes 8 of M6 are uniformly distributed on the circumference of the steps, 4 isosceles trapezoid supporting convex blocks 31 are uniformly distributed on the outer side of the circumference of the supporting ring 3, and the convex length of the supporting convex blocks 31 is 30mm; the outer diameter of the lower heat preservation sleeve 22 is 820mm, the inner diameter is 790mm, the height is 322mm, 8M 6 threaded blind holes 7 corresponding to countersunk holes on the support ring 3 are uniformly distributed on the top surface of the lower heat preservation sleeve 22, and the support ring 3 is fixedly connected with the lower heat preservation sleeve 22 through M6 bolts 9. The inner diameter of the furnace shell 1 is 950mm, four groups of 70mm multiplied by 35mm multiplied by 10mm brackets 5 are welded on the inner wall of the furnace shell 1, and transverse plates of the brackets 5 are fixedly connected with supporting pieces 6 with the diameters of 40mm multiplied by 80mm multiplied by 12mm respectively by adopting M6 bolts. The platform diameter 850mm of the AGV trolley for bearing and separating the shell 11 and the heat preservation cylinder 2, the platform rotation center of the AGV trolley is consistent with the heat preservation cylinder, and the horizontal separation of the heat preservation cylinder 2 and the furnace shell 1 can be realized when the platform of the AGV trolley rotates by more than 10 degrees along the axis in the embodiment.

The working principle or the working method of the utility model:

after the heating furnace finishes heating the workpiece to be heated, when the heating furnace is lifted and transported, the shell 11 of the lifting furnace shell is separated from the shell bottom 12, and in the lifting process of the shell 11, the supporting sheets 6 in the supporting mechanism 4 can be correspondingly supported on the lower sides of the supporting convex blocks 31 of the supporting rings when the supporting sheets 6 rise along with the shell, so that synchronous transportation of the heat preservation cylinder 2 and the furnace shell 1 can be realized; the lifting equipment lifts the shell 11 and carries the heat preservation cylinder 2 and then transfers the shell to a platform of an AGV trolley beside the heating furnace, when the furnace shell 1 and the heat preservation cylinder 2 descend for a certain distance, the platform of the AGV trolley can support the heat preservation cylinder 2, the furnace shell 1 continues to descend for a certain distance, and the supporting lug 31 of the supporting ring is separated from the supporting piece 6 arranged on the inner wall of the furnace shell 1, namely the furnace shell 1 and the heat preservation cylinder 2 are vertically separated; then AGV dolly drives heat preservation section of thick bamboo 2 along its axle center rotation according to the rotation angle that sets for, for example heat preservation section of thick bamboo rotation angle is 20, can realize that the support piece 6 of furnace shell 1 inner wall and the circumferential support lug 31 of heat preservation section of thick bamboo 2 are in the level dislocation in rotatory in-process, promotes furnace shell 1 through hoisting accessory again and can realize the separation of furnace shell 1 and heat preservation section of thick bamboo 2 to convenient realization furnace shell 1 and heat preservation section of thick bamboo 2's autosegregation, the follow-up clearance and the maintenance to the heat preservation section of thick bamboo of being convenient for.

The foregoing is a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model and are intended to be comprehended within the scope of the present utility model.

Claims (4)

1. A heating furnace provided with a supporting ring, which is characterized by comprising a furnace shell (1) and a heat preservation cylinder (2) arranged in the furnace shell; a plurality of groups of supporting mechanisms (4) are arranged on the inner wall of the furnace shell (1) at equal intervals in the circumferential direction; the support ring (3) is provided with a plurality of support convex blocks (31) along the outer circumference of the ring body; the cross section of the supporting lug (31) is trapezoid, round, elliptic, square or triangular; the support ring (3) is fixedly arranged under the heat preservation cylinder (2), and the furnace shell (1) and the heat preservation cylinder (2) are synchronously hoisted and transported through the cooperation of the support lug (31) of the support ring (3) and the support mechanism (4).

2. The heating furnace provided with the supporting ring according to claim 1, wherein the supporting mechanism (4) comprises a bracket (5) fixedly arranged on the inner wall of the furnace shell (1) and a supporting sheet (6) fixedly connected to the front end of a transverse plate of the bracket.

3. The furnace provided with support rings according to claim 1, characterized in that the insulating cylinder (2) comprises several insulating sleeves vertically stacked; the bottom heat preservation sleeve top end face circumference equidistant is equipped with a plurality of screw thread blind hole (7), support ring (3) circumference is equipped with counter sunk hole (8) with screw thread blind hole correspondence, support ring (3) pass through bolt (9) fixed connection in bottom heat preservation sleeve upper end.

4. The heating furnace provided with the supporting ring according to claim 1, further comprising an AGV trolley, wherein the AGV trolley can be supported at the bottom end of the heat preservation cylinder (2) and drives the heat preservation cylinder to rotate so as to be separated from the furnace shell (1).