Single-fan double-layer furnace door device of infrared drying furnace
By adopting a double-layer structure with inner and outer doors in the infrared drying oven, and designing an air insulation layer between the inner and outer doors, the problem of heat loss and safety hazards caused by deformation of single-layer door structures at high temperatures is solved, achieving the effects of energy saving and operational safety.
Patent Information
- Application Number
- CN202520212226.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-02-11
AI Technical Summary
The single-layer door structure of existing infrared drying ovens is prone to deformation under high temperature conditions, resulting in heat loss, safety hazards, energy waste, and affecting the working environment of operators.
It adopts a double-layer structure with an inner door and an outer door. There is an air insulation layer between the inner and outer doors. The inner door plays a primary sealing role, while the outer door plays a supplementary sealing role. Both the inner and outer doors are filled with heat-resistant insulation materials. The outer door has a lower temperature to prevent deformation and ensure a good seal.
It effectively isolates the furnace interior from the outside, saves energy, reduces the temperature of the outer door, eliminates the danger of high-temperature airflow to operators, improves the working environment, and prevents heat loss.
Smart Images
Figure CN223807595U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to infrared drying furnace field relates to a kind of infrared drying furnace single-fan double-layer furnace door device. BACKGROUND
[0002] Infrared drying furnace uses high infrared quartz electric heater to heat, to dry granular or powder raw material, especially widely used in battery material field. Infrared drying furnace temperature is generally above 500 DEG C. Therefore, furnace body insulation is quite critical work. The door of drying furnace two ends often needs to open and close, and belongs to movable part. Although asbestos strip is installed between door and door frame to clear joint, due to frequent opening and closing, plus high temperature in furnace, a little longer, door produces some deformation, so that asbestos strip and door frame will produce certain gap, and heat will be emitted from gap. In addition, the shell of door is stainless steel material, and the inside is filled with silicate insulation material. The inner side of door is stainless steel material, and the outer side is also stainless steel material. The inner side of door is also several hundred degrees. The temperature of the inner side of door is conducted to the outer side of door through metal, and the temperature of the outer side of door is also very high, and then emitted in air. When door needs to be opened and closed, several layers of gloves are needed to operate, which has serious safety hazard. At the same time, energy is wasted, and environment is affected.
[0003] For the structure of single-layer double-fan door drying furnace, there is a column in the middle of the left and right directions of the double-fan door, which is fixed. The column is usually made of 100X50 square tube wrapped with stainless steel, and the insulation thickness is 50mm. A large amount of heat is lost to the outside of the furnace. Energy is wasted, and environment is affected. UTILITY MODEL CONTENTS
[0004] The utility model discloses a kind of infrared drying furnace single-fan double-layer furnace door device, adopt the double-layer structure of inner door and outer door, air heat insulation layer is further present between inner door and outer door, so that furnace space is well isolated with outside, inner door plays the role of main sealing, outer door plays the role of supplementary sealing, and the temperature where outer door is located is relatively lower, and deformation will not occur again, even if the gap produced by deformation of inner door, outer door can also realize good sealing environment, so that the door of equipment two ends does not heat to the outside, energy is saved, environment is protected, due to the existence of inner door and air heat insulation layer, the outside temperature of outer door of equipment end is low, operation safety is ensured, dangerous operation environment brought by high temperature is basically eliminated, the working environment of operator is greatly improved, and is no longer affected by high-temperature airflow in gap produced by deformation of airtight position.
[0005] The technical scheme adopted by the utility model is as follows:
[0006] The utility model provides a kind of infrared drying furnace single-fan double-layer furnace door device, it includes inner door and outer door, the inner door is close to infrared drying furnace inside, outer door is located inner door outside, inner door and outer door are closed between with spacing and form air thermal insulation layer, the inner door includes inner door framework and inner door steel plate, inner door steel plate is covered on inner door framework, heat-resistant insulation material is filled in inner door, pivot is arranged on one side of inner door, and lock catch is arranged on the other side;The outer door includes outer door framework and outer door steel plate, outer door steel plate is covered on outer door framework, heat-resistant insulation material is filled in outer door, corresponding pivot and lock catch are arranged on the same side of the outer door with the inner door.
[0007] Further, the inner door framework and the outer door framework are both welded from hollow square tubes.
[0008] Further, the hollow square tubes are filled with heat-resistant insulation material.
[0009] Further, the heat-resistant insulation material is silicate insulation cotton, which is tightly filled without gaps.
[0010] Further, the inner door framework and the outer door framework are both provided with pivot mounting reinforcing blocks on the side of the pivot, the reinforcing blocks are directly welded on the inner door framework and the outer door framework, one end of the pivot is mounted on the reinforcing block, and the other end is mounted on the furnace body.
[0011] Further, the inner door framework has two reinforcing blocks, which are welded on the right side of the outer side surface of the inner door framework, and two pivots are correspondingly arranged, and mounting blocks are arranged at the mounting positions of the pivots and the furnace body;The outer door framework has three reinforcing blocks, which are arranged on the right side surface of the outer door framework, and three pivots are correspondingly arranged.
[0012] Further, inner door frames and outer door frames are arranged corresponding to the sizes of the inner door and the outer door, and the inner door and the outer door are respectively mounted on the inner door frames and the outer door frames.
[0013] Further, the inner door framework, the outer door framework, the inner door frame and the outer door frame are all welded from square tubes made of Q235 material.
[0014] Further, the distance between the front and back of the inner door frame and the outer door frame is 220mm, the thickness of the inner door is 120mm, the thickness of the outer door is 160mm, and the distance between the front and back of the inner door and the outer door is greater than or equal to 100mm, which is the thickness of the air thermal insulation layer.
[0015] Further, the inner door steel plate and the outer door steel plate are both made of 304 stainless steel plate with a thickness greater than or equal to 2mm, which is used to overcome the harsh environment during drying and reduce the magnetism of the materials in the drying furnace.
[0016] In summary, due to the adoption of the technical scheme, the present application has the advantages that:
[0017] 1. The double-layer structure of the inner door and the outer door is adopted, and the air heat insulation layer is further arranged between the inner door and the outer door, so that the space in the furnace is well insulated from the outside, the inner door plays a main sealing role, the outer door plays a supplementary sealing role, and the temperature of the outer door is relatively low, so that deformation does not occur, even if the inner door is deformed to form a gap, the outer door can also realize a good sealing environment, so that the doors at both ends of the equipment do not radiate heat to the outside, energy is saved, and the environment is protected.
[0018] 2. In the present application, due to the existence of the inner door and the air heat insulation layer, the temperature outside the outer door at the end of the equipment is low, the operation safety is ensured, the dangerous operation environment caused by high temperature is basically eliminated, the working environment of the operator is greatly improved, and the operator is not affected by the high-temperature airflow in the gap caused by deformation of the closed position. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor, wherein:
[0020] Figure 1 is a structural schematic view of an infrared drying furnace with a single-fan double-layer furnace door device of the infrared drying furnace.
[0021] Figure 2 is Figure 1 is a top view after the outer door steel plate is hidden.
[0022] Figure 3 is Figure 2 is a partial sectional view at A-A in the inner door.
[0023] Figure 4 is a structural schematic view of the present application, which is a single-fan double-layer furnace door device of an infrared drying furnace, after the outer door steel plate is hidden.
[0024] Figure 5 is a structural schematic view of the present application, which is a single-fan double-layer furnace door device of an infrared drying furnace, after the inner door steel plate and the outer door steel plate are hidden.
[0025] The marks in the figure are respectively: 1. inner door 101. inner door framework 102. inner door steel plate 103. inner door frame 2. outer door 201. outer door framework 202. outer door steel plate 203. outer door frame 3. rotating shaft 4. lock 5. reinforcing block 6. mounting block. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described examples are only a part of the examples of the utility model, but not all the examples. The components of the utility model embodiments generally described and shown in the drawings herein can be arranged and designed in various different configurations.
[0027] Therefore, the detailed description of the embodiments of the utility model provided in the drawings below is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0028] It should be noted that the relational terms such as "first" and "second" and the like are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.
[0029] The features and performances of the utility model will be further described in detail below in combination with examples.
[0030] Examples:
[0031] The utility model discloses a kind of infrared drying furnace single-fan double-layer furnace door device of preferred embodiment, it includes inner door 1 and outer door 2, the inner door 1 is close to infrared drying furnace inside, outer door 2 is located inner door 1 outside, inner door 1 and outer door 2 have spacing between after closing, form air heat insulation layer (air heat insulation layer is the gap between inner door 1 and outer door 2), the inner door 1 includes inner door skeleton 101 and inner door steel plate 102, inner door steel plate 102 is covered on inner door skeleton 101, heat-resistant insulation material is filled in inner door 1, pivot 3 is set on one side of inner door 1, and lock catch 4 is set on the other side;The outer door 2 includes outer door skeleton 201 and outer door steel plate 202, outer door steel plate 202 is covered on outer door skeleton 201, heat-resistant insulation material is filled in outer door 2, the heat-resistant insulation material material is silicate insulation cotton, and silicate insulation cotton is filled tightly without gap, and filling principle is that the door inside surrounded by steel pipe of skeleton, door frame and steel plate pasted on skeleton is filled with silicate insulation cotton (in order that other structure is clear, silicate insulation cotton is not shown in the figure), in order to heat preservation demand, gap place can be considered to fill heat preservation material, corresponding pivot 3 and lock catch 4 are set on the same side of outer door 2 and inner door 1, and pivot 3 and lock catch 4 are only used for the rotation and locking after closing of door, so its structure is not limited, as long as it is suitable, it can be used, and its quantity and position are adjusted according to demand, and it needs to bear the weight of door, and its material can use heat-resistant metal material, for example, it can be Q235 material, or it can be stainless steel material.
[0032] The inner door skeleton 101 and outer door skeleton 201 are all welded by hollow square tubes, the hollow square tubes can reduce the weight of the skeleton, and the silicate insulation cotton filled in the hollow square tubes can reduce heat conduction, and the silicate insulation cotton should be filled as tightly as possible to reduce heat loss.
[0033] The inner door skeleton 101 and outer door skeleton 201 are both provided with a pivot 3 mounting reinforcing block 5 on one side of the pivot 3, the reinforcing block 5 is directly welded on the inner door skeleton 101 and the outer door skeleton 201, one end of the pivot 3 is mounted on the reinforcing block 5, and the other end of the pivot 3 is mounted on the furnace body, and the reinforcing block 5 is mainly used for strengthening the structure of the connection part to make the mounting stable, and the reinforcing block 5 can be realized in other structures, such as a reinforcing rib.
[0034] The number of the reinforcing block 5 of the inner door skeleton 101 is two, the reinforcing block 5 is welded on the right side of the outer side of the inner door skeleton 101, two pivots 3 are correspondingly arranged, and the mounting part of the pivot 3 and the furnace body is provided with a mounting block 6; the number of the reinforcing block 5 of the outer door skeleton 201 is three, and the reinforcing block 5 is arranged on the right side of the outer door skeleton 201, and three pivots 3 are correspondingly arranged.
[0035] Corresponding to the size of the inner door 1 and the outer door 2, the inner door frame 103 and the outer door frame 203 are arranged respectively, and the inner door 1 and the outer door 2 are mounted on the inner door frame 103 and the outer door frame 203 respectively, and the door frame itself is fixed on the end or inner wall of the infrared drying furnace.
[0036] The inner door frame 101, the outer door frame 201, the inner door frame 103 and the outer door frame 203 are all made of Q235 material square tube welding, that is, the material inside the door can use non-stainless steel material, and it is not necessary to consider the magnetic effect caused by contact, only the heat conduction and strength need to be considered.
[0037] The front and rear distance of the inner door frame 103 and the outer door frame 203 is 220mm, the thickness of the inner door 1 is 120mm, the thickness of the outer door 2 is 160mm, and the front and rear distance of the inner door 1 and the outer door 2 is greater than or equal to 100mm, which is the thickness of the air heat insulation layer. The reasonable thickness of the air heat insulation layer can ensure the heat preservation effect, and the temperature of the outer door 2 is also at a relatively low temperature. Of course, the above data is only a reasonable data, and the door thickness and the thickness of the air heat insulation layer can be set according to the demand. It should be noted that the inner door 1 and the outer door 2 need to completely cover the outlet position of the infrared drying furnace, and not to exceed the edge so as to affect the integrity.
[0038] The inner door steel plate 102 and the outer door steel plate 202 are both made of 304 stainless steel plate with a thickness greater than or equal to 2mm. The stainless steel plate is used to overcome the harsh environment during drying, and also reduces the magnetic effect caused by the material of the drying furnace itself.
[0039] The utility model discloses a transformation on the basis of the present infrared drying furnace, and the whole structure is not changed, and the inner door is installed on the main skeleton (inner door frame) of the furnace body, four edges of the inner door are pressed on the main skeleton, and the inner door is pulled tightly by a lock catch during temperature rising. The thickness of the inner door is 120mm, and the inner cavity is filled with silicate thermal insulation cotton and is pressed tightly. Then, a 100X50 rectangular tube is welded on the main skeleton, the end part of the furnace is made high and wide and is extended to the outside, an outer rectangular frame larger than the inner main skeleton is made as an outer door frame. The rectangular tube is filled with silicate thermal insulation cotton and is pressed tightly. The height and width of the outer door are consistent with the size of the outer edge of the outer rectangular frame, the thickness of the door is 160mm, the inner cavity of the outer door is filled with silicate thermal insulation cotton and is pressed tightly. The outer door is pressed tightly by the lock catch during temperature rising. The distance between the front and back of the inner and outer doors is 100mm, and air is used as the heat insulation medium between the inner and outer doors. When the temperature in the furnace reaches 500 DEG C or above, the inner side of the inner door is several hundred degrees, the temperature of the outer side of the inner door is high, the temperature of the inner side of the outer door is low, and the outer side of the outer door basically reaches normal temperature. The structure is two layers of silicate thermal insulation cotton, one layer is 120mm thick, and the other layer is 160mm thick. There is a 100mm air heat insulation distance in the middle. The design does not emit heat to the outside of the furnace, does not waste energy, and does not affect the environment. The outer side of the outer door reaches normal temperature, and there is no risk of scalding. Of course, the utility model mainly comprises a double-layer structure of the inner door and the outer door, and the rest of the door frame and the rotating shaft are adaptively arranged.
[0040] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.
[0041] In the utility model, unless otherwise clearly defined and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or can be integrated, can be mechanical connection, or can be electrical connection, can be directly connected, or indirectly connected through an intermediate medium, or can be the communication or interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0042] The above merely describes preferred embodiments of the present application and is not used to limit the protection scope of the present application, and any modification, equivalent replacement, improvement, etc. made by any person skilled in the art within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An infrared drying oven single fan double door oven door arrangement, characterized by: It includes inner door and outer door, the inner door is close to infrared drying furnace inner side, outer door is located in the outer side of inner door, the inner door and outer door are closed between the spacing and form air insulation layer, the inner door includes inner door framework and inner door steel plate, the inner door steel plate is covered on the inner door framework, the inner door is filled with heat-resistant insulation material, the pivot is arranged on one side of the inner door, and the lock catch is arranged on the other side; The outer door includes outer door framework and outer door steel plate, the outer door steel plate is covered on the outer door framework, and the outer door is filled with heat-resistant insulation material, and the outer door and the inner door are provided with corresponding pivots and lock catches on the same side.
2. The single door double door device of the infrared drying oven according to claim 1, characterized in that: The inner door framework and the outer door framework are all welded by hollow square tubes.
3. The single door dual door assembly for an infrared drying oven of claim 2, wherein: The hollow square tube is filled with heat-resistant insulation material.
4. The single door double door device of the infrared drying oven according to claim 1 or 3, characterized in that: The heat-resistant insulation material is silicate insulation cotton, and the silicate insulation cotton is filled tightly without gap.
5. The single door dual door assembly for an infrared drying oven of claim 1, wherein: The inner door framework and the outer door framework are provided with pivot mounting reinforcing blocks on one side of the pivot, and the reinforcing blocks are directly welded on the inner door framework and the outer door framework, one end of the pivot is mounted on the reinforcing block, and the other end is mounted on the furnace body.
6. An infrared drying oven single fan double door door arrangement according to claim 5, wherein: The number of the reinforcing blocks of the inner door framework is two, and the reinforcing blocks are welded on the right side of the outer side of the inner door framework, and two pivots are correspondingly arranged, and mounting blocks are arranged at the mounting positions of the pivots and the furnace body.
7. The single fan double door door assembly for an infrared drying oven of claim 1, wherein: The size of the inner door and the outer door is correspondingly set, and the inner door and the outer door are respectively mounted on the inner door frame and the outer door frame.
8. The single door dual door assembly for an infrared drying oven of claim 7, wherein: The inner door framework, the outer door framework, the inner door frame and the outer door frame are all welded by square tubes made of Q235 material.
9. The single door dual door assembly for an infrared drying oven of claim 7, wherein: The front-to-back distance of the inner door frame and the outer door frame is 220mm, the thickness of the inner door is 120mm, the thickness of the outer door is 160mm, and the front-to-back distance of the inner and outer doors is greater than or equal to 100mm.
10. The single door dual door assembly for an infrared drying oven of claim 1, wherein: The inner door steel plate and the outer door steel plate are both made of 304 stainless steel plate with a thickness greater than or equal to 2mm.