CN218973225U - Heat circulation structure of high-temperature sintering furnace - Google Patents

Abstract

The utility model discloses a high-temperature sintering furnace thermal cycle structure, which comprises a high-temperature sintering furnace, wherein a high-temperature sintering chamber is arranged in the high-temperature sintering furnace, cooling preheating chambers are symmetrically arranged on two sides of the high-temperature sintering chamber, sealing doors are respectively arranged on the outer sides of the high-temperature sintering chamber and the cooling preheating chambers, an upper mounting box and a lower mounting box are respectively arranged on the upper side and the lower side of the high-temperature sintering furnace, fans are respectively arranged on the two sides in the upper mounting box, a second circulating exhaust pipe is connected on the fans, the upper end of the high-temperature sintering chamber is communicated with a circulating air inlet pipe, the circulating air inlet pipe is connected with one end of the second circulating exhaust pipe, and a first circulating exhaust pipe and a cooling air inlet pipe are arranged in the lower mounting box. The heat circulation structure of the high-temperature sintering furnace can efficiently utilize heat, the heat taken away by cooling the workpiece in the preheating chamber can be used in the high-temperature sintering chamber, the wind taken away by the heat circulation in the high-temperature sintering chamber can be used for preheating treatment of cooling the workpiece in the preheating chamber, and the high-temperature sintering furnace is easy to efficiently use.

Description

Heat circulation structure of high-temperature sintering furnace

Technical Field

The utility model relates to the technical field of sintering furnaces, in particular to a high-temperature sintering furnace thermal cycle structure.

Background

The high-temperature sintering furnace is a special chemical equipment for high-temperature sintering of materials, and is the equipment necessary for heating powder pressed compact to a certain temperature to make it undergo chemical reaction or physical change. The sintering furnace is used for drying the slurry on the silicon wafer, removing organic components in the slurry, completing aluminum back surface field and grid line sintering and the like.

The existing high-temperature sintering furnace is heated by the electric heating element and is provided with a cooling structure, heat is uniformly distributed in the high-temperature sintering furnace through hot air circulation, and the sintering effect is improved, but when the high-temperature sintering furnace cools the sintered workpiece, part of heat is taken away by cooling water, part of heat is lost and wasted, and the high-temperature sintering furnace is unfavorable for high-efficiency utilization of heat.

Disclosure of Invention

The utility model aims to provide a high-temperature sintering furnace thermal cycle structure, which aims to solve the problems that part of heat is taken away by cooling water and part of heat is lost and wasted when the sintered workpiece is cooled by the high-temperature sintering furnace in the market in the prior art, and the high-temperature sintering furnace is unfavorable for the efficient utilization of heat.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high temperature sintering furnace thermal cycle structure, includes the high temperature sintering furnace, be equipped with the high temperature sintering room in the high temperature sintering furnace, and high temperature sintering room bilateral symmetry is equipped with the cooling preheating chamber to sealing door is installed respectively in high temperature sintering room and the cooling preheating chamber outside, high temperature sintering furnace upper and lower both sides are equipped with install the case respectively and install the case down, and go up the incasement both sides and install the fan respectively, and be connected with the second circulation exhaust pipe on the fan, high temperature sintering chamber upper end intercommunication has the circulation air-supply line, and the circulation air-supply line is connected with one of them end of second circulation exhaust pipe, be equipped with first circulation exhaust pipe and cooling wind inlet pipe in the lower install the incasement, and cooling wind inlet pipe and cooling preheating chamber intercommunication, first circulation exhaust pipe both ends are with high temperature sintering chamber and cooling preheating chamber intercommunication respectively.

Preferably, a positioning bottom plate is fixedly welded at the bottom of the inner side of the high-temperature sintering furnace, and a movable placing plate is movably installed on the positioning bottom plate through a movable guide rail.

Preferably, the movable placing plates are arranged in two, and the movable placing plates are respectively arranged in the high-temperature sintering chamber and the cooling preheating chamber.

Preferably, the inner sides of the high-temperature sintering chamber and the cooling preheating chamber are provided with isolation net plates Fang Junka, and heat-resistant baffle plates which are in sealing connection with the positioning bottom plates are respectively arranged between the high-temperature sintering chamber and the cooling preheating chamber.

Preferably, the heat-resistant partition plate is movably provided with a sealed isolation door plate through a guide rail structure, and the width of the movable placement plate is smaller than the opening width of the sealed isolation door plate.

Preferably, the cooling preheating chamber is the same size as the high temperature sintering chamber.

Compared with the prior art, the utility model has the beneficial effects that: the heat circulation structure of the high-temperature sintering furnace can efficiently utilize heat, the heat taken away by cooling the workpiece in the preheating chamber can be used in the high-temperature sintering chamber, the wind taken away by the heat circulation in the high-temperature sintering chamber can be used for preheating treatment of cooling the workpiece in the preheating chamber, and the high-temperature sintering furnace is easy to efficiently use. The high-temperature sintering furnace thermal circulation structure is characterized in that cooling preheating chambers are arranged on two sides of a high-temperature sintering chamber, the high-temperature sintering chamber is communicated with the cooling preheating chambers through first circulation exhaust pipes which can be controlled to open and close so as to perform hot air circulation treatment, and all circulation pipes are matched for use so as to ensure air pressure balance in the high-temperature sintering furnace.

Drawings

FIG. 1 is a schematic structural view of a heat cycle structure of a high temperature sintering furnace according to the present utility model;

FIG. 2 is a side view of a thermal cycle structure of a high temperature sintering furnace according to the present utility model;

FIG. 3 is a schematic diagram showing the relative positioning of the first circulating exhaust pipe and the base plate in the thermal cycle structure of the high temperature sintering furnace.

In the figure: 1. a high-temperature sintering furnace; 2. an upper mounting box; 3. a blower; 4. a circulating air inlet pipe; 5. a second circulation exhaust duct; 6. an isolation screen; 7. a movable placement plate; 8. positioning a bottom plate; 9. a lower mounting box; 10. a high temperature sintering chamber; 11. a first circulation exhaust duct; 12. a heat-blocking separator; 13. sealing and isolating the door plate; 14. cooling the preheating chamber; 15. a cooling air inlet pipe; 16. sealing the door.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the heat circulation structure of high-temperature sintering furnace comprises high-temperature sintering furnace 1, positioning bottom plate 8 is fixed at the bottom of the inner side of high-temperature sintering furnace 1 by welding, movable placing plate 7 is movably installed on positioning bottom plate 8 by movable guide rail, the structure can make movable placing plate 7 move back and forth on positioning bottom plate 8, movable placing plate 7 in high-temperature sintering chamber 10 can move into cooling preheating chamber 14, movable placing plate 7 in cooling preheating chamber 14 can also move into high-temperature sintering chamber 10, so that the workpiece in high-temperature sintering chamber 10 can move into cooling preheating chamber 14 for cooling, after cooling preheating chamber 14 is cooled, the workpiece to be sintered can move into high-temperature sintering chamber 10 again for sintering treatment, high-temperature sintering chamber 10 is equipped with electric heating element in high-temperature sintering chamber 10, the heat-insulating plate is used for heat treatment, cooling preheating chambers 14 are symmetrically arranged at two sides of the high-temperature sintering chamber 10, a water cooling mechanism is arranged in the cooling preheating chambers 14, two movable placing plates 7 are arranged, the movable placing plates 7 are respectively positioned in the high-temperature sintering chamber 10 and the cooling preheating chambers 14, the movable placing plates 7 are used for fixing a feeding frame and a discharging frame, an insulating screen plate 6 is arranged on Fang Junka on the inner sides of the high-temperature sintering chamber 10 and the cooling preheating chambers 14, a heat-insulating baffle plate 12 which is in sealing connection with a positioning bottom plate 8 is respectively arranged between the high-temperature sintering chamber 10 and the cooling preheating chambers 14, the structural insulating screen plate 6 plays a role of separating a circulating air inlet pipe 4 from a second circulating air outlet pipe 5, the heat-insulating baffle plate 12 is composed of an existing heat-insulating structure and is used for preventing heat in the high-temperature sintering chamber 10 from leaking from a side plate part, a sealing insulating door plate 13 is movably arranged in the heat-insulating baffle plate 12 through a guide rail structure, the width of the movable placing plate 7 is smaller than the opening width of the sealed isolation door plate 13, the sealed isolation door plate 13 with the structure can automatically perform opening and closing treatment so as to control the moving treatment of the movable placing plate 7 in the high-temperature sintering furnace 1, the sealing doors 16 are respectively arranged at the outer sides of the high-temperature sintering chamber 10 and the cooling preheating chamber 14, the sealing doors 16 are of a door body structure on the existing sintering furnace, in the working process, the sealing doors 16 at the outer sides of the high-temperature sintering chamber 10 are tightly fastened, the upper and lower sides of the high-temperature sintering furnace 1 are respectively provided with an upper mounting box 2 and a lower mounting box 9, the two sides in the upper mounting box 2 are respectively provided with a fan 3, the fan 3 is of an existing induced draft fan structure, so that gas in the cooling preheating chamber 14 can be pumped into the circulating air inlet pipe 4, the circulating air inlet pipe 4 works through the induced draft fan to realize hot air circulating treatment, and a second circulating exhaust pipe 5 is connected to the fan 3, the upper end of the high temperature sintering chamber 10 is communicated with a circulating air inlet pipe 4, the circulating air inlet pipe 4 is connected with one end of a second circulating exhaust pipe 5, a first circulating exhaust pipe 11 and a cooling air inlet pipe 15 are arranged in a lower mounting box 9, the first circulating exhaust pipe 11 and the cooling air inlet pipe 15 are controlled to be opened and closed by electromagnetic valves so as to control the air pressure balance in the high temperature sintering furnace 1, the cooling air inlet pipe 15 can be matched with a water cooling mechanism in a cooling preheating chamber 14 to carry out cooling treatment, so that redundant heat is circulated in hot air, the cooling air inlet pipe 15 is communicated with the cooling preheating chamber 14, the two ends of the first circulating exhaust pipe 11 are respectively communicated with the high temperature sintering chamber 10 and the cooling preheating chamber 14, the cooling preheating chamber 14 and the high temperature sintering chamber 10 are the same in size, the structure can enable the cooling preheating chamber 14 and a movable placing plate 7 in the high temperature sintering chamber 10 to move mutually, the high-temperature sintering chamber 10 and the cooling preheating chamber 14 are communicated through the second circulating exhaust pipe 5 and the first circulating exhaust pipe 11 to perform heat circulation treatment, so that hot air in the high-temperature sintering chamber 10 can enter the cooling preheating chamber 14 on the side face through the first circulating exhaust pipe 11 to preheat a workpiece to be sintered in the cooling preheating chamber 14, and meanwhile, the workpiece to be sintered in the cooling preheating chamber 14 is placed in the cooling preheating chamber 14, part of heat can be discharged into the cooling preheating chamber 14 in the cooling process, the heat utilization efficiency is improved, and the use effect of the high-temperature sintering furnace 1 is improved.

Working principle: when the high-temperature sintering furnace thermal circulation structure is used, firstly, workpieces to be sintered are respectively arranged on two movable placing plates 7 in a high-temperature sintering furnace 1 through a feeding and discharging frame, a high-temperature sintering chamber 10 is heated through an electric heating element, the workpieces are sintered, in the process, a circulation air inlet pipe 4 ventilates into the high-temperature sintering chamber 10, a first circulation exhaust pipe 11 between a cooling preheating chamber 14 provided with the movable placing plates 7 and the high-temperature sintering chamber 10 is opened, the side fan 3 is started, hot air in the high-temperature sintering chamber 10 enters the cooling preheating chamber 14 through the first circulation exhaust pipe 11 to perform preheating treatment on the workpieces, then the fan 3 pumps the hot air into the circulation air inlet pipe 4 through a second circulation exhaust pipe 5 to realize thermal circulation treatment, after the workpieces in the high-temperature sintering chamber 10 are sintered, a sealing isolation door plate 13 is started, the sealing isolation door plate 13 is opened, the guide rail structure in the positioning bottom plate 8 passes through the heat-resistant baffle plate 12, the preheated workpiece enters the high-temperature sintering chamber 10, the sintered workpiece enters the cooling preheating chamber 14 at the other side, the sealing isolation door plate 13 is closed, the high-temperature sintering chamber 10 continues the sintering processing of the workpiece, the workpiece in the cooling preheating chamber 14 is cooled by the water cooling mechanism, meanwhile, the fan 3 at the upper side is started, the cooling preheating chamber 14 is pumped into cold air by the cooling air inlet pipe 15 for cooling processing, the cold air also enters the circulating air inlet pipe 4 by the second circulating exhaust pipe 5 after heat exchange, the waste of heat is reduced, after the workpiece in the cooling preheating chamber 14 is cooled, the sealing door 16 at the side is opened, the sintered workpiece is taken out, the workpiece to be sintered is placed in the cooling preheating chamber 14 again, and the steps are repeated, the workpiece to be sintered is preheated, so that efficient heat utilization treatment is realized, the upper mounting box 2 is used for mounting the fan 3 and the second circulating exhaust pipe 5, the lower mounting box 9 is used for mounting the first circulating exhaust pipe 11 and the cooling air inlet pipe 15, and the isolation screen 6 is used for separating and filtering air inlet, so that a series of works are completed.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides a high temperature sintering stove thermal cycle structure, includes high temperature sintering stove (1), its characterized in that: the high-temperature sintering furnace is characterized in that a high-temperature sintering chamber (10) is arranged in the high-temperature sintering furnace (1), cooling preheating chambers (14) are symmetrically arranged on two sides of the high-temperature sintering chamber (10), sealing doors (16) are respectively arranged on the outer sides of the high-temperature sintering chamber (10) and the cooling preheating chambers (14), an upper mounting box (2) and a lower mounting box (9) are respectively arranged on the upper side and the lower side of the high-temperature sintering furnace (1), fans (3) are respectively arranged on two sides in the upper mounting box (2), a second circulating exhaust pipe (5) is connected to the fans (3), a circulating air inlet pipe (4) is communicated to the upper end of the high-temperature sintering chamber (10), one end of the circulating air inlet pipe (4) is connected to one end of the second circulating exhaust pipe (5), a first circulating exhaust pipe (11) and a cooling air inlet pipe (15) are arranged in the lower mounting box (9), the cooling air inlet pipe (15) is communicated with the cooling preheating chambers (14), and two ends of the first circulating exhaust pipe (11) are respectively communicated with the high-temperature sintering chamber (10) and the cooling preheating chambers (14).

2. The high temperature sintering furnace thermal cycle structure according to claim 1, wherein: the bottom of the inner side of the high-temperature sintering furnace (1) is fixedly provided with a positioning bottom plate (8) through welding, and the positioning bottom plate (8) is movably provided with a movable placing plate (7) through a movable guide rail.

3. The high temperature sintering furnace thermal cycle structure according to claim 2, wherein: the movable placing plates (7) are arranged in two, and the movable placing plates (7) are respectively arranged in the high-temperature sintering chamber (10) and the cooling preheating chamber (14).

4. The high temperature sintering furnace thermal cycle structure according to claim 1, wherein: the inner sides of the high-temperature sintering chamber (10) and the cooling preheating chamber (14) are provided with Fang Junka with isolation net plates (6), and heat-resistant partition plates (12) which are connected with the positioning bottom plate (8) in a sealing way are respectively arranged between the high-temperature sintering chamber (10) and the cooling preheating chamber (14).

5. The high temperature sintering furnace thermal cycle structure according to claim 4, wherein: the sealing isolation door plate (13) is movably mounted in the heat-resistant partition plate (12) through a guide rail structure, and the width of the movable placement plate (7) is smaller than the opening width of the sealing isolation door plate (13).

6. The high temperature sintering furnace thermal cycle structure according to claim 1, wherein: the cooling and preheating chamber (14) is the same size as the high-temperature sintering chamber (10).

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