Atmosphere box for box-type furnace

Abstract

The utility model discloses an atmosphere box for a box-type furnace. The atmosphere box comprises an air inlet, a box body, a door plate clamping groove and a door plate, the utility model relates to the technical field of biomass resource utilization and new energy battery cathode material processing, in particular to an atmosphere box structure for a box-type furnace, which is simple in structure and capable of effectively reducing the use amount of specific gas and saving cost by transmitting the specific atmosphere required in the material heating process through an air inlet. The control is convenient, the sampling is simple, the improvement cost of the whole structure of the existing box-type furnace is low, and the box-type furnace is suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of box-type furnace equipment processing, in particular to an atmosphere box structure for a box-type furnace. Background Art

[0002] Agricultural and forestry waste (such as straw, wood chips, and rice husks) is an abundant renewable resource and a key raw material for biochar production. Biochar is typically prepared by carbonizing the biomass in an oxygen-free or oxygen-depleted atmosphere, typically at temperatures below 1000°C. Therefore, biochar processing often requires carbonization equipment with good sealing properties.

[0003] A box furnace is a heating furnace with a box-shaped chamber. It heats the material within the furnace using heating elements within the chamber. Within the scope of mechanical processing, it is defined as a type of muffle furnace. Box furnaces are categorized as conventional box furnaces and vacuum furnaces. Conventional box furnaces are unsealed, with the chamber open to the atmosphere, and cannot achieve an oxygen-free or low-oxygen atmosphere. Vacuum furnaces, on the other hand, have a completely sealed chamber that can be vacuumed by evacuating air. Comparing the two types of box furnaces, vacuum furnaces typically cost several times more than conventional ones. Currently, biochar producers often choose more expensive vacuum furnaces. If a conventional box furnace could be converted to one capable of achieving an oxygen-free or low-oxygen atmosphere at a lower cost, the production cost of biochar would be significantly reduced. In light of this, in-depth research into the aforementioned issues led to this case. Utility Model Content

[0004] Purpose: The technical problem to be solved by the present invention is that ordinary box furnaces cannot obtain an oxygen-free or low-oxygen atmosphere environment, and provide a design scheme of an atmosphere box for a box furnace to provide the required specific atmosphere environment for the material heating process, save gas costs, and solve the existing background technical problems.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] 1. An atmosphere box for a box-type furnace, comprising an air inlet, a box body, a door panel slot and a door panel. A circular steel bar is welded to the opening. The box body is composed of trapezoidal steel plates on both sides and three rectangular steel plates on the top, bottom and back. The door panel is embedded in the door panel slot. The overall structure has good sealing performance and can be placed in a box-type furnace for heating and retain the atmosphere after ventilation.

[0007] 2. Preferably, the entire structure including the door panels is made of 310S or higher hardness steel, and the steel itself can withstand high temperatures above 1100°C.

[0008] 3. Preferably, in order to maintain airtightness, a circle of asbestos is attached to the box opening, and the door panel is obliquely blocked at the box opening at an angle less than 85°.

[0009] 4. Preferably, in order to ensure the specific atmosphere conditions required for the materials, the box furnace needs to have an air inlet connected to the gas cylinder and the atmosphere box air inlet, and the gas cylinder is transported by a rubber tube.

[0010] Beneficial Effects: By adding an atmosphere box to a box-type furnace, this utility model provides the required atmosphere for heating materials, avoiding the adverse effects of air. The atmosphere box has a simple manufacturing process and structure, uses inexpensive materials, and can withstand high temperatures while making rational use of the internal space of the box-type furnace. Its good airtightness significantly saves the gas required for material heating, making it convenient for sample introduction and sampling, and also reducing the overall cost of retrofitting existing box-type furnaces, making it suitable for widespread use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, and the above and / or other advantages of the present invention will become more apparent.

[0012] Figure 1 This is a schematic diagram of the main structure of an atmosphere box for a box-type furnace described in the present invention.

[0013] Figure 2 This is a perspective structural diagram of an atmosphere box for a box-type furnace described in the present invention.

[0014] Figure 3 It is an enlarged schematic diagram of the door slot and door panel of the atmosphere box for a box-type furnace described in the present invention.

[0015] In the figure: 1. Air inlet; 2. Box body; 3. Door panel slot; 4. Door panel; 5. Round steel bar DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Through the use of personnel in this field, the atmosphere box in this case is connected to the box furnace it is adapted to through the air inlet, and the appropriate size of the atmosphere box should be selected according to the actual situation of the box furnace to meet the experimental requirements. The specific connection sequence should refer to the following working principle. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process.

[0018] Example: According to the specification Figure 1-3It can be seen that this case is an atmosphere box structure for a box-type furnace. The effective space is designed to be a box body with a length of 260mm, a height of 260mm, and a depth of 350mm. The remaining components include an air inlet 1, a box body 2, a door panel slot 3, and a door panel 4. A circular steel bar is welded at the opening. The box body is composed of trapezoidal steel plates on both sides and three rectangular steel plates on the top, bottom, and back. The door panel is embedded in the door panel slot. The overall structure has good sealing performance. It is placed in a box-type furnace for heating and can retain the atmosphere after ventilation.

[0019] As a preferred solution, further, the entire structure including the door panels is made of 310S hardness steel, and the steel itself can withstand high temperatures of 1100°C.

[0020] As a preferred solution, further, a circle of asbestos is attached to the box opening, and the door panel is obliquely blocked at the box opening at an angle of 85 degrees.

[0021] As a preferred solution, further, in order to ensure the provision of specific atmosphere conditions required for the materials, the box furnace needs to have an air inlet connected to the gas cylinder and the atmosphere box air inlet 1, and the gas cylinder is transported by a rubber tube.

[0022] To sum up, the atmosphere box for the box-type furnace has a simple structure and provides an idea and method for providing the specific atmosphere required for material heating by the atmosphere box for the box-type furnace. There are many methods and ways to implement this technical solution. The above is only a preferred embodiment of the present invention. The material removal after heating is simple and convenient, the gas consumption is small, and the overall structure of the existing box-type furnace is only modified little, which is suitable for promotion.

Claims

1. An atmosphere box for a box-type furnace, comprising an air inlet (1), a box body (2), a door panel slot (3) and a door panel (4), wherein a circular steel bar (5) is welded to the opening, the box body (2) is composed of trapezoidal steel plates on both sides and three rectangular steel plates at the top, bottom and back, and the door panel (4) is embedded in the door panel slot (3).

2. The atmosphere box for a box-type furnace according to claim 1, characterized in that: The entire structure including the door panels is made of 310S or higher hardness steel, which can withstand high temperatures above 1100°C.

3. The atmosphere box for a box-type furnace according to claim 2, characterized in that: In order to maintain airtightness, a circle of asbestos is attached to the opening of the box, and the door panel is tilted at an angle of less than 85° to block the opening of the box.

4. The atmosphere box for a box-type furnace according to claim 3, characterized in that: In order to ensure the provision of specific atmosphere conditions required by the materials, the box furnace must have an air inlet connected to the gas cylinder and the atmosphere box air inlet (1), and the gas cylinder is transported by a rubber tube.

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