Rapid cooling system of horizontal degumming furnace and horizontal degumming furnace thereof

Abstract

The utility model belongs to the field of horizontal degumming furnaces, and particularly relates to a rapid cooling system of a horizontal degumming furnace, which comprises a furnace body, an air inlet structure is arranged at the bottom of the furnace body towards the outer side of a hearth, and an air exhaust structure is arranged at the top of the furnace body; the air inlet structure comprises a transverse air duct transversely arranged at the bottom of the furnace body and at least two longitudinal air ducts arranged in the width direction of the furnace body. The other ends of the two longitudinal air ducts penetrate through a heat preservation layer in the furnace body and are communicated with the outer side of the hearth; the other end of the transverse air duct is connected with a fan. According to the rapid cooling system of the horizontal degumming furnace, air enters from the bottom of the furnace body and is exhausted from the top of the furnace body, so that an air path is smooth, the cooling speed is high, cooling is uniform, the equipment utilization rate is greatly increased, and the production efficiency is improved. And the heat exchange uniformity can be improved on the basis of ensuring the simple structure of the rapid cooling system, so that the quality of products in the hearth is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of horizontal degumming furnaces, and in particular relates to a rapid cooling system of a horizontal degumming furnace and the horizontal degumming furnace. Background Art

[0002] The basic process of preparing silicon carbide ceramics: the raw materials are mixed evenly to prepare a slurry, spray dried into granulated powder, the granulated powder is pressed into shape, low-temperature debonding-high-temperature sintering-completed. In the process of forming silicon carbide ceramic products, in order to be able to press the raw material powder into shape, a certain amount of binder needs to be added to the powder as a forming agent. In the subsequent sintering process, the forming agent needs to be removed at a temperature of about 800°C. The silicon carbide ceramics with the forming agent removed can reach the various mechanical properties of the ceramics after sintering. After completing the heating program, wait for the furnace body to cool below the lowest oxidation point of the product and the insulation material before opening the furnace cover to take out the product and loading the next furnace.

[0003] The previous equipment has the following methods: 1) Natural cooling. 2) Bottom air supply, exhaust port at the back of the furnace. The defects of the original solution: Natural cooling. The cooling time is very long, which is not conducive to the efficient use of equipment and has low production efficiency. The exhaust port is opened at the back of the furnace, the air supply path is tortuous, there is a cooling dead zone, the cooling time is long and the cooling is uneven, which is easy to cause stress damage to the structural parts. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a rapid cooling system of a horizontal degumming furnace with high cooling effect and the horizontal degumming furnace.

[0005] The utility model provides a rapid cooling system for a horizontal degumming furnace, comprising a furnace body, an air inlet structure is arranged at the bottom of the furnace body toward the outside of the furnace chamber, and an exhaust structure is arranged at the top of the furnace body;

[0006] The air inlet structure includes a transverse air duct arranged transversely at the bottom of the furnace body and at least two longitudinal air ducts arranged along the width direction of the furnace body;

[0007] One end of the two longitudinal air ducts is connected to the transverse air duct, and the other end passes through the insulation layer in the furnace body and is connected to the outside of the furnace;

[0008] The other end of the transverse air duct is connected with a fan.

[0009] Furthermore, the exhaust structure includes an opening arranged at the top of the furnace body, a blocking plate hingedly arranged at one side of the opening, and a driving component for driving the blocking plate to rotate along the hinge axis.

[0010] Furthermore, a connecting plate is arranged on the side of the blocking plate facing away from the outlet, and the driving assembly is a linear telescopic driving component, one end of which is hinged to the connecting plate, and the other end is hinged to the furnace body.

[0011] Furthermore, a heat preservation plug is provided on the side of the sealing plate facing the opening.

[0012] Furthermore, one end of the thermal insulation plug away from the hinge of the sealing plate is in an arc-shaped structure.

[0013] Furthermore, there is a gap between the outer wall of the furnace chamber and the inner wall of the insulation layer in the furnace body, and the air inlet structure and the air exhaust structure are both connected to the gap.

[0014] Furthermore, a valve structure is provided between the transverse air duct and the fan.

[0015] Furthermore, at least three air inlet structures are evenly arranged along the length direction of the furnace body; and one air exhaust structure is respectively arranged at both ends of the length direction of the furnace body.

[0016] Furthermore, three air inlet structures are provided, and the three air inlet structures are arranged between the two air exhaust structures.

[0017] The utility model also provides a horizontal degumming furnace, comprising a rapid cooling system of the horizontal degumming furnace.

[0018] The rapid cooling system of the horizontal degumming furnace provided by the utility model adopts the bottom air intake of the furnace body and the top air exhaust of the furnace body, so that the air path is unobstructed, the cooling speed is fast, and the cooling is uniform, thereby greatly improving the equipment utilization rate and the production efficiency. Moreover, the specific setting of the air intake structure can improve the heat exchange uniformity on the basis of ensuring the simple structure, thereby ensuring the product quality in the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attached Figure 1 It is the front view of the utility model;

[0020] Attached Figure 2 It is a front cross-sectional view of the utility model;

[0021] Attached Figure 3 For attachment Figure 2 A partial enlarged view of point A in the middle.

[0022] In the figure, 1-furnace body; 11-furnace chamber; 12-air inlet structure; 121-longitudinal air duct; 122-transverse air duct; 13-exhaust structure; 131-opening; 132-sealing plate; 133-driving assembly; 134-insulation plug; 135-connecting plate; 14-insulation layer; 2-fan. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation" and the like should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; it can mean direct connection, indirect connection through an intermediate medium, internal connection between two elements, or interaction between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] As attached Figure 1 -Attached Figure 3 As shown, the utility model provides a rapid cooling system for a horizontal degumming furnace, comprising a furnace body 1, an air inlet structure 12 is arranged at the bottom of the furnace body 1 toward the outside of a furnace chamber 11, and an exhaust structure 13 is arranged at the top of the furnace body 1. The air inlet structure 12 can input a low-temperature cooling medium, such as air, from the bottom of the furnace body 1 to the outside of the furnace chamber 11. After the low-temperature cooling medium exchanges heat with the furnace chamber 11, it flows out from the exhaust structure 13 at the top of the furnace body 1, thereby quickly cooling the furnace chamber 11. By adopting the above-mentioned structural arrangement, the principle of rising hot air flow is reasonably utilized to convey and transport air flow, and the air flow can be well ensured without an air flow conveying component, thereby reducing the complexity of the cooling system.

[0028] The air inlet structure 12 includes a transverse air duct 122 arranged transversely at the bottom of the furnace body 1 and at least two longitudinal air ducts 121 arranged along the width direction of the furnace body 1;

[0029] One end of the two longitudinal air ducts 121 is connected to the transverse air duct 122, and the other end passes through the insulation layer 14 in the furnace body 1 and is connected to the outside of the furnace 11;

[0030] The other end of the transverse air duct 122 is connected to the fan 2. With this arrangement, the cold air driven by the fan 2 can pass through a transverse air duct 122 and then enter at least two longitudinal air ducts 121, so that the cold air can flow into the furnace 11 at various positions in the width direction of the furnace 11, thereby ensuring the uniformity of cooling in the width direction of the furnace 11.

[0031] The rapid cooling system of the horizontal degumming furnace provided by the utility model adopts the bottom air intake of the furnace body 1 and the top air exhaust of the furnace body 1, so that the air path is unobstructed, the cooling speed is fast, and the cooling is uniform, thereby greatly improving the equipment utilization rate and the production efficiency. Moreover, the specific setting of the air intake structure can improve the heat exchange uniformity on the basis of ensuring the simple structure, thereby ensuring the product quality in the furnace.

[0032] In one of the embodiments, a valve structure is provided between the transverse air duct 122 and the fan 2. The valve structure can be used to close and open the transverse air duct 122, so that when the furnace body 1 is in the heating stage, the transverse air duct 122 can be closed by the valve structure to prevent the heat inside the furnace body 1 from being lost through the air inlet structure 12. When the furnace body 1 is in the cooling stage, the transverse air duct 122 can be opened by the valve structure to make the air duct unobstructed for cooling. Specifically, the valve structure can be a pluggable blocking mechanism set at the end of the transverse air duct 122, or a high-temperature resistant valve set on the transverse air duct 122. The specific selection can be based on actual needs;

[0033] In one embodiment, referring to the attached Figure 3 The exhaust structure 13 includes an opening 131 arranged at the top of the furnace body 1, a sealing plate 132 hingedly arranged on one side of the opening 131, and a driving component 133 for driving the sealing plate 132 to rotate along the hinge axis. The exhaust structure 13 has a simple overall structure and is convenient for controlling the opening and closing of the opening 131. Therefore, when the furnace body 1 is in the heating stage, the driving component 133 can be used to drive the sealing plate 132 to block the opening 131 to prevent the heat inside the furnace body 1 from being lost through the opening 131. When the furnace body 1 is in the cooling stage, the driving component 133 can be used to drive the sealing plate 132 to open the opening 131, so that the airflow after heat exchange is discharged through the opening 131.

[0034] In one of the embodiments, a connecting plate 135 is provided on the side of the sealing plate 132 facing away from the opening 131, and the driving component 133 is a linear telescopic driving component, one end of the linear telescopic driving component is hinged to the connecting plate 135, and the other end is hinged to the furnace body 1, wherein the linear driving component can adopt a cylinder, a hydraulic cylinder or an electric cylinder, which can be selected according to actual needs. In this embodiment, the two ends of the linear telescopic driving component are respectively hinged to the furnace body 1 and the sealing plate 132, so that the sealing plate 132 blocks the opening 131 in the extended state, and opens the opening 131 in the shortened state, and the linear telescopic driving component and the opening 131 are always separated by the sealing plate 132, which can prevent the hot air flow from affecting the linear telescopic driving component.

[0035] In one of the embodiments, a thermal insulation plug 134 is provided on the side of the sealing plate 132 facing the opening 131. By providing the thermal insulation plug 134, on the one hand, the sealing performance of the sealing plate 132 when sealing the opening 131 can be improved, and on the other hand, the temperature of the sealing plate 132 can be reduced to prevent the high temperature in the furnace body 1 from being directly transferred to the sealing plate 132.

[0036] In one embodiment, one end of the thermal insulation plug 134 away from the hinge of the sealing plate 132 is in an arc-shaped structure, so that during the opening and closing process of the thermal insulation plug 134, one end of the thermal insulation plug 134 can move in contact with one end of the opening 131.

[0037] In one of the embodiments, there is a gap between the outer wall of the furnace chamber 11 and the inner wall of the insulation layer 14 in the furnace body 1, and the air inlet structure 12 and the exhaust structure 13 are both connected to the gap. The gap is used to circulate a low-temperature cooling medium, so that the low-temperature cooling medium can directly act on the outer wall of the furnace chamber 11, thereby increasing the cooling efficiency. During the heating stage, the insulation layer 14 can isolate the high temperature of the furnace chamber 11 from the side wall of the furnace body 1.

[0038] In one of the embodiments, at least three air inlet structures 12 are evenly arranged along the length direction of the furnace body 1; one exhaust structure 13 is respectively arranged at both ends of the length direction of the furnace body 1. The length of the horizontal degumming furnace is relatively long, so multiple air inlet structures 12 are arranged to ensure that each position in the length direction of the horizontal degumming furnace can dissipate heat evenly, and one exhaust structure 13 is respectively arranged at both ends of the length direction of the furnace body 1, so that the airflow is discharged from both sides of the top after sufficient heat exchange in the furnace chamber 11, which can increase the flow path length of the low-temperature cooling, ensure the adequacy of heat exchange of the low-temperature cooling medium, and also reduce the number of exhaust structures 13 to ensure the structural strength of the furnace body 1.

[0039] In one embodiment, three air inlet structures 12 are provided, and the three air inlet structures 12 are arranged between two air exhaust structures 13. At this time, any air inlet structure 12 and any air exhaust structure 13 are not in a straight line, so that the low-temperature cooling medium input by the three air inlet structures 12 will not be directly discharged upward, which can ensure the movement path of the low-temperature cooling medium and improve the heat exchange effect.

[0040] The utility model also provides a horizontal degumming furnace, comprising a rapid cooling system of the horizontal degumming furnace.

[0041] The above is only an embodiment and does not limit the present invention in any way. Any person skilled in the art can make many possible changes, modifications or modifications to the present invention without departing from the scope of the present invention by using the above disclosed technical contents. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the present invention should fall within the scope of protection of the present invention.

Claims

1. A rapid cooling system for a horizontal degumming furnace, characterized in that: It comprises a furnace body (1), wherein an air inlet structure (12) is arranged at the bottom of the furnace body (1) toward the outside of a furnace chamber (11), and an air exhaust structure (13) is arranged at the top of the furnace body (1); The air inlet structure (12) comprises a transverse air duct (122) arranged transversely at the bottom of the furnace body (1) and at least two longitudinal air ducts (121) arranged along the width direction of the furnace body (1); One end of the two longitudinal air ducts (121) is connected to the transverse air duct (122), and the other end passes through the thermal insulation layer (14) in the furnace body (1) and is connected to the outside of the furnace (11); The other end of the transverse air duct (122) is connected to a fan (2).

2. The rapid cooling system of the horizontal degumming furnace according to claim 1, characterized in that: The exhaust structure (13) comprises an opening (131) arranged at the top of the furnace body (1), a blocking plate (132) hingedly arranged on one side of the opening (131), and a driving component (133) for driving the blocking plate (132) to rotate along a hinge axis.

3. The rapid cooling system of the horizontal degumming furnace as claimed in claim 2, characterized in that: A connecting plate (135) is provided on the side of the blocking plate (132) facing away from the opening (131); the driving assembly (133) is a linear telescopic driving component, one end of the linear telescopic driving component is hinged to the connecting plate (135), and the other end is hinged to the furnace body (1).

4. The rapid cooling system of the horizontal degumming furnace as claimed in claim 2, characterized in that: A heat preservation plug (134) is provided on the side of the sealing plate (132) facing the opening (131).

5. The rapid cooling system of the horizontal degumming furnace as claimed in claim 4, characterized in that: One end of the heat preservation plug (134) which is away from the hinge of the sealing plate (132) is in an arc-shaped structure.

6. The rapid cooling system of the horizontal degumming furnace according to any one of claims 1 to 5, characterized in that: There is a gap between the outer wall of the furnace chamber (11) and the inner wall of the heat-insulating layer (14) in the furnace body (1), and the air inlet structure (12) and the air exhaust structure (13) are both connected to the gap.

7. The rapid cooling system of the horizontal degumming furnace as claimed in claim 6, characterized in that: A valve structure is provided between the transverse air duct (122) and the fan (2).

8. The rapid cooling system of the horizontal degumming furnace according to any one of claims 1 to 5, characterized in that: At least three air inlet structures (12) are evenly arranged along the length direction of the furnace body (1); and one air exhaust structure (13) is respectively arranged at both ends of the length direction of the furnace body (1).

9. The rapid cooling system of the horizontal degumming furnace as claimed in claim 8, characterized in that: Three air inlet structures (12) are provided, and the three air inlet structures (12) are arranged between two air exhaust structures (13).

10. A horizontal degumming furnace, characterized in that: A rapid cooling system comprising a horizontal degumming furnace as described in any one of claims 1 to 9.

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