CN219136838U

CN219136838U - Spheroidizing annealing furnace

Info

Publication number: CN219136838U
Application number: CN202223605338.9U
Authority: CN
Inventors: 沈兵
Original assignee: Zhejiang Dadao Robotics Co ltd
Current assignee: Zhejiang Dadao Robotics Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-06-06
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a spheroidizing annealing furnace, which comprises an annealing furnace body, wherein the annealing furnace body comprises a furnace body, a furnace mouth, a furnace cover and a furnace cover lifting device, the furnace mouth is arranged at the upper end of the furnace body, the furnace cover is arranged at the upper end of the furnace mouth, the furnace cover lifting device is arranged at the upper end of the furnace cover, and the spheroidizing annealing furnace comprises an inner cover, a first through hole, a radiating fin, an outer cover, a second through hole, an exhaust pipe, a one-way valve, a bracket, an air cooler, a cold air pipe, a water tank, a circulating water pump, a water pipe, a first section of water pipe, a second section of water pipe and a third section of water pipe. The utility model has simple structure and reasonable design, can mutually match water cooling and air cooling, can cool the water cooling system and the annealing furnace simultaneously when the air cooling system is in operation, can be used for two purposes, does not need to be provided with an additional cooling liquid cooling mechanism, and reduces the energy consumption of compound cooling.

Description

Spheroidizing annealing furnace

Technical Field

The utility model relates to the technical field of spheroidizing annealing furnaces, in particular to the technical field of spheroidizing annealing furnaces.

Background

The spheroidizing annealing furnace is mainly suitable for heat treatment of eutectoid steel and hypereutectoid steel workpieces such as carbon tool steel, alloy tool steel, bearing steel and the like. The spheroidized pearlite structure is obtained by spheroidizing annealing in a spheroidizing annealing furnace, wherein cementite is in spherical particles and is dispersed and distributed on a ferrite matrix, compared with flaky pearlite, the spheroidized pearlite structure has low hardness, is convenient for cutting processing, and has small deformation and cracking tendency of a workpiece when the workpiece is cooled because austenite grains are not easy to grow up during quenching and heating.

All be provided with the heat sink in the current annealing stove, these heat sinks contain water-cooling, forced air cooling, perhaps water-cooling, forced air cooling complex cooling, among them in the mechanism of water-cooling, forced air cooling complex cooling, water cooling system and forced air cooling system often mutually independent, for example a configuration well formula spheroidizing annealing stove that application number 202122408923.9 discloses, this spheroidizing annealing stove possesses water-cooling and forced air cooling two kinds of cooling systems, and although the good cooling effect that possesses, more independently operated cooling system also can improve the energy consumption, and the energy consumption is high.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides a spheroidizing annealing furnace, which can enable water cooling and air cooling to be mutually matched, so that an air cooling system can cool the water cooling system and the annealing furnace at the same time when in operation, the air cooling system can be used for two purposes, an additional cooling liquid cooling mechanism is not required to be arranged on the water cooling system, and the energy consumption of composite cooling is reduced.

In order to achieve the aim, the utility model provides a spheroidizing annealing furnace, which comprises an annealing furnace body, wherein the annealing furnace body comprises a furnace body, a furnace mouth, a furnace cover and a furnace cover lifting device, the furnace mouth is arranged at the upper end of the furnace body, the furnace cover is arranged at the upper end of the furnace mouth, the furnace cover lifting device is arranged at the upper end of the furnace cover, the spheroidizing annealing furnace comprises an inner cover, a first through hole, radiating fins, an outer cover, a second through hole, an exhaust pipe, a one-way valve, a bracket, an air cooler, a cold air pipe, a water tank, a circulating water pump, a water pipe, a first section of water pipe, a second section of water pipe and a third section of water pipe, the inner cover is sleeved at the lower end of the furnace body, the inner cover mouth is fixed at the lower end surface of the furnace mouth, the first through hole is arranged at the bottom of the inner cover, a plurality of radiating fins are arranged on the outer wall of the inner cover, the outer cover is sleeved at the lower end of the inner cover, the second through hole is arranged at the bottom of the outer cover, the exhaust pipe is arranged at the top of the outer cover wall, the exhaust pipe is provided with the one-way valve, the bottom end of the outer cover is provided with a bracket, the left end of the bracket is provided with an air cooler, the air outlet of the air cooler is provided with two air cooling pipes, the air outlet end of one air cooling pipe is connected with the second through hole, the left end of the bracket is provided with a water tank, the inner bottom of the water tank is provided with a circulating water pump, the two ends of the water pipe are connected with the water tank, the water pipe outside the water tank is folded in half, the folded water pipe sequentially passes through an inner hole of the air cooling pipe, the second through hole, the first through hole, the gap between the inner bottom of the inner cover and the lower end surface of the furnace body, the gap between the inner wall of the inner cover and the outer side wall of the furnace body, the folded water pipe is disconnected with the second through hole, the folded water pipe comprises a first section of water pipe, a second section of water pipe and a third section of water pipe, the distance between the folded water pipe and the water tank is from near to far in turn, the first section of water pipe is in a spiral pipe shape in an inner hole of the cold air pipe, the second section of water pipe is in a spiral disk shape in a gap between the inner bottom of the inner cover and the lower end face of the furnace body, and the third section of water pipe is in a spiral pipe shape in a gap between the inner wall of the inner cover and the outer side wall of the furnace body.

Preferably, the water pipe enters the cold air pipe after penetrating through the wall of the air inlet end of the cold air pipe.

Preferably, the first section of water pipe is arranged close to the inner wall of the cold air pipe.

Preferably, the length of the cold air pipe is at least three meters.

Preferably, the lower ends of the radiating fins are radially arranged on the lower end face of the inner cover, and the upper ends of the radiating fins are vertically arranged on the outer side wall of the inner cover.

Preferably, the outer wall of the cold air pipe is provided with a heat insulation layer.

Preferably, the inner cover presses the second section of water pipe and the third section of water pipe against the outer wall of the furnace body.

The utility model has the beneficial effects that: the utility model has simple structure and reasonable design, can mutually coordinate water cooling and air cooling, and can cool the water cooling system and the annealing furnace simultaneously when the air cooling system operates, the air cooling system can be used for two purposes, the water cooling system does not need to be provided with an additional cooling liquid cooling mechanism, and the energy consumption of composite cooling is reduced; by arranging two cold air pipes and arranging a spiral pipe-shaped first section of water pipe in one cold air pipe, the mode that one cold air pipe is used as a main pipeline for outputting low-temperature cold air is preferable, and the other cold air pipe is used as a main pipeline for cooling the first section of water pipe, so that the operation of the air cooling system is prevented from being influenced by the water cooling system; by arranging the one-way valve, the exhaust pipe can only exhaust and can not intake air, so that foreign matters are not easy to enter a gap between the inner cover and the outer cover through the exhaust pipe; by providing the heat radiating fins, the heat radiating performance of the inner cover can be enhanced.

The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic front view of a spheroidizing annealing furnace of the present utility model.

Detailed Description

Referring to fig. 1, the spheroidizing annealing furnace of the utility model comprises an annealing furnace main body 1, the annealing furnace main body comprises a furnace body 11, a furnace mouth 111, a furnace cover 12 and a furnace cover lifting device 13, the upper end of the furnace body 11 is provided with the furnace mouth 111, the upper end of the furnace mouth 111 is provided with the furnace cover 12, the upper end of the furnace cover 12 is provided with the furnace cover lifting device 13, the spheroidizing annealing furnace comprises an inner cover 2, a first through hole 21, a radiating fin 22, an outer cover 3, a second through hole 31, an exhaust pipe 32, a one-way valve 321, a bracket 4, an air cooler 5, a cold air pipe 51, a water tank 6, a circulating water pump 61, a water pipe 62, a first section water pipe 621, a second section water pipe 622 and a third section water pipe 623, the inner cover 2 is sleeved at the lower end of the furnace body 11, the cover mouth of the inner cover 2 is fixed at the lower end face of the furnace mouth 111, the cover bottom of the inner cover 2 is provided with the first through hole 21, the outer wall of the inner cover 2 is provided with a plurality of radiating fins 22, the outer cover 3 is sleeved at the lower end of the inner cover 2, the cover 3 is fixed at the lower end of the furnace mouth 111, the bottom of the cover 3 is provided with a second through hole 31, the top end of the cover wall of the cover 3 is provided with an exhaust pipe 32, the exhaust port of the exhaust pipe 32 is provided with a one-way valve 321, the bottom end of the cover 3 is provided with a bracket 4, the left end of the bracket 4 is provided with an air cooler 5, the air outlet of the air cooler 5 is provided with two air cooling pipes 51, the air outlet end of one air cooling pipe 51 is connected with the second through hole 31, the left end of the bracket 4 is provided with a water tank 6, the inner bottom of the water tank 6 is provided with a circulating water pump 61, the two ends of a water pipe 62 are connected with the water tank 6, the water pipe 62 outside the water tank 6 is folded in half, the folded water pipe 62 sequentially passes through the inner hole of the one air cooling pipe 51, the second through hole 31, the first through hole 21, the gap between the inner bottom of the inner cover 2 and the lower end face of the furnace body 11, the gap between the inner wall of the inner cover 2 and the outer side wall of the furnace body 11, and the air cooling pipe 51 passing through the folded water pipe 62 is not connected with the second through hole 31, the folded water pipe 62 comprises a first section water pipe 621, a second section water pipe 622 and a third section water pipe 623, the distance between the folded water pipe 62 and the water tank 6 is from near to far, the first section water pipe 621, the second section water pipe 622 and the third section water pipe 623 are sequentially arranged, the first section water pipe 621 is arranged in an inner hole of the cold air pipe 51, the first section water pipe 621 is in a spiral tube shape in the inner hole of the cold air pipe 51, the second section water pipe 622 is in a spiral disc shape in a gap between the inner bottom of the inner cover 2 and the lower end face of the furnace body 11, and the third section water pipe 623 is in a spiral tube shape in a gap between the inner wall of the inner cover 2 and the outer side wall of the furnace body 11.

Wherein, the water pipe 62 enters the cold air pipe 51 after passing through the air inlet end pipe wall of the cold air pipe 51.

Wherein the first water pipe 621 is disposed near the inner wall of the cold air pipe 51.

Wherein, the length of the cold air pipe 51 is at least three meters.

The lower ends of the radiating fins 22 are radially arranged on the lower end face of the inner cover 2, and the upper ends of the radiating fins 22 are vertically arranged on the outer side wall of the inner cover 2.

Wherein, the outer wall of the cold air pipe 51 is provided with a heat insulation layer.

Wherein the inner cover 2 presses the second water pipe 622 and the third water pipe 623 against the outer wall of the furnace shell 11.

The working process of the utility model comprises the following steps:

in the working process of the spheroidizing annealing furnace, when the annealing furnace body 1 needs to be cooled, a proper amount of water is injected into the water tank 6, the air cooler 5 and the circulating water pump 61 are started, the circulating water pump 61 sends water into the water inlet end of the water pipe 62, then the water flows into the water tank 6 through the water outlet end of the water pipe 62 to form circulating water flow, the circulating water flow in the second section water pipe 622 and the third section water pipe 623 can take away the heat of the furnace body 11 to cool the furnace body, cold air blown by the air cooler 5 can enter a gap between the inner cover 2 and the outer cover 3 after passing through the two air cooling pipes 51, and is discharged through the exhaust pipe 32, when the cold air in the gap between the inner cover 2 and the outer cover 3 passes through, the furnace body 11 and the second section water pipe 622 and the third section water pipe 623 and the heat of the water flow in the water cooling pipe are taken away, and the two air cooling pipes 51 are not in direct contact with the furnace body 11, and the outer wall of the air cooling pipes 51 is provided with a heat insulation layer, so that the two air cooling pipes 51 are not easy to be influenced by the heat of the furnace 11, the first section water pipe 621 in one air cooling pipe 51 can be subjected to the effect of cooling the furnace body 51, and then the temperature of the water cooling pipe 11 can be continuously cooled down, and the water cooling mechanism can be continuously cooled down by the water flow in the water cooling mechanism 6 and can be cooled down the water cooling water flow in the water tank 6, and can be continuously required to be cooled down by the water cooling mechanism.

The utility model has simple structure and reasonable design, can mutually coordinate water cooling and air cooling, and can cool the water cooling system and the annealing furnace simultaneously when the air cooling system operates, the air cooling system can be used for two purposes, the water cooling system does not need to be provided with an additional cooling liquid cooling mechanism, and the energy consumption of composite cooling is reduced; by arranging two cold air pipes 51 and arranging a spiral tubular first section water pipe 621 in one cold air pipe 51, wherein one cold air pipe 51 is used as a main pipeline for outputting low-temperature cold air, and the other cold air pipe 51 is used as a main pipeline for cooling the first section water pipe 621, so that the operation of the air cooling system is prevented from being influenced by a water cooling system; by arranging the one-way valve 321, the exhaust pipe 32 can only exhaust and can not intake air, so that foreign matters are not easy to enter a gap between the inner cover 2 and the outer cover 3 through the exhaust pipe 32; by providing the heat radiating fins 22, the heat radiating performance of the inner cover 2 can be enhanced.

The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.

Claims

1. Spheroidizing annealing stove contains annealing stove main part (1), and the annealing stove main part contains furnace body (11), fire hole (111), bell (12), bell hoisting device (13), furnace body (11) upper end is equipped with fire hole (111), and fire hole (111) upper end is equipped with bell (12), and bell (12) upper end is equipped with bell hoisting device (13), its characterized in that: including inner cover (2), first through-hole (21), radiating fin (22), dustcoat (3), second through-hole (31), blast pipe (32), check valve (321), support (4), air-cooler (5), air-cooler (51), water tank (6), circulating water pump (61), water pipe (62), first section water pipe (621), second section water pipe (622), third section water pipe (623), inner cover (2) cover is in furnace body (11) lower extreme, and inner cover (2) cover mouth is fixed at furnace mouth (111) lower terminal surface, and inner cover (2) cover bottom is equipped with first through-hole (21), and inner cover (2) outer wall is equipped with a plurality of radiating fin (22), and dustcoat (3) cover is in inner cover (2) lower extreme, and dustcoat (3) cover mouth is fixed at furnace mouth (111) lower terminal surface, and dustcoat (3) cover bottom is equipped with second through-hole (31), and dustcoat (3) cover wall top is equipped with blast pipe (32), and blast pipe (32) are equipped with check valve (321), and dustcoat (3) bottom is equipped with support (4), and support (4) left end is equipped with 5) air-cooler (5) air-outlet (51) and two air-cooler (51) air-outlet link to each other, the left end of the bracket (4) is provided with a water tank (6), the inner bottom of the water tank (6) is provided with a circulating water pump (61), the two ends of a water pipe (62) are connected to the water tank (6), the water outlet end of the water pipe (62) is connected with the circulating water pump (61), the water pipe (62) at the outer side of the water tank (6) is folded in half, the folded water pipe (62) sequentially passes through an inner hole of a cold air pipe (51), a second through hole (31), a first through hole (21), a gap between the inner bottom of an inner cover (2) and the lower end surface of a furnace body (11), a gap between the inner wall of the inner cover (2) and the outer side wall of the furnace body (11), the cold air pipe (51) passing through the folded water pipe (62) is disconnected with the second through hole (31), the folded water pipe (62) comprises a first section water pipe (621), a second section water pipe (622) and a third section water pipe (623), the distance between the folded water pipe (62) and the water tank (6) is sequentially from near to far from the inner hole of the first section water pipe (621), the second section water pipe (622) and the third section water pipe (623), the first section water pipe (621) is arranged in the inner hole (51) of the inner spiral pipe (51) at the inner bottom of the inner hole of the inner pipe (11) in the inner pipe (11), the third section of water pipe (623) is in a spiral tube shape in a gap between the inner wall of the inner cover (2) and the outer side wall of the furnace body (11).

2. The spheroidizing annealing furnace of claim 1, wherein: after the water pipe (62) passes through the wall of the air inlet end of the cold air pipe (51), the water pipe (62) enters the cold air pipe (51).

3. The spheroidizing annealing furnace of claim 1, wherein: the first section of water pipe (621) is arranged close to the inner wall of the cold air pipe (51).

4. The spheroidizing annealing furnace of claim 1, wherein: the length of the cold air pipe (51) is at least three meters.

5. The spheroidizing annealing furnace of claim 1, wherein: the lower ends of the radiating fins (22) are radially arranged on the lower end face of the inner cover (2), and the upper ends of the radiating fins (22) are vertically arranged on the outer side wall of the inner cover (2).

6. The spheroidizing annealing furnace of claim 1, wherein: the outer wall of the cold air pipe (51) is provided with a heat insulation layer.

7. The spheroidizing annealing furnace of claim 1, wherein: the inner cover (2) presses the second section water pipe (622) and the third section water pipe (623) on the outer wall of the furnace body (11).