Thermal insulation structure of graphitization furnace

Abstract

The utility model discloses a heat preservation structure of a graphitization furnace, which relates to the technical field of graphitization furnaces and comprises a constant temperature structure, the constant temperature structure comprises an outer shell, a connecting block is arranged at the bottom of the inner wall of the outer shell, an isolation cylinder is arranged on one side, far away from the outer shell, of the connecting block, a sealing ring is arranged above the isolation cylinder, and an inner shell is arranged on the inner side of the isolation cylinder. A heating piece is arranged on the outer wall of the inner shell, a top plate is arranged above the inner shell, a driving gear is arranged on the upper surface of the top plate, a driven gear is arranged on one side of the driving gear, a stirring piece is arranged below the driven gear, a gear ring is arranged on the side, away from the driving gear, of the driven gear, a motor is arranged above the driving gear, and a rotating rod is arranged at the output end of the motor. According to the graphite heat preservation device, heat preservation is carried out on graphite through the isolation cylinder and the heating piece, heat loss is avoided, and the stirring piece is arranged, so that the graphite is heated evenly, and heat loss is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of graphitization furnaces, in particular to a heat preservation structure of a graphitization furnace. Background Art

[0002] The graphitization furnace is mainly used for high-temperature graphitization of carbon materials such as carbon powder, polyimide film, carbon fiber, carbon-carbon material, graphene, graphite brush, graphite electrode, etc. Its working principle is: the furnace body of the graphitization furnace is loaded with resistor material, and the products to be graphitized are arranged in the resistor material, together forming a conductive furnace core, and the burners at both ends of the furnace body are provided with conductive electrodes, which are connected to the power supply to form a power-on circuit. When the circuit is connected, the furnace core heats up due to the action of the resistor material, so that the products to be graphitized are transformed into artificial graphite after high-temperature heat treatment, and some gas of the resistor material evaporates from the material surface after being powered on and heated, and is ignited by the igniter. The smoke is finally led out by the insulation cover on the top of the furnace body. During the entire graphitization process, the insulation material in the furnace and the insulation cover on the top are used to achieve thermal insulation and heat preservation functions.

[0003] Chinese patent CN115849365A discloses a graphitization furnace with an automatic ignition device, which relates to the technical field of graphitization furnaces, including a graphitization furnace, wherein after graphite is loaded, two groups of volatile escape tubes are arranged in the graphite, each group of volatile escape tubes is a plurality of volatile escape tubes and is arranged along the length direction of the graphitization furnace, each of the volatile escape tubes is inserted into the graphite, and the upper ports of the volatile escape tubes are all placed outside the graphite, and the side walls of the volatile escape tubes located in the graphite are provided with air inlets. A smoke exhaust hood is provided on the top of the graphitization furnace, and tracks are provided inside the two sides of the smoke exhaust hood. An ignition assembly is slidably provided on the track. The ignition assembly slides above each group of volatile escape pipes through the track. By providing the volatile escape pipe, all the gas is discharged from the volatile escape pipe. The ignition assembly slides above the volatile escape pipe through the track to facilitate full-automatic ignition. However, the structure has limitations. The smoke is directly discharged to the outside of the furnace body, the waste heat of the smoke is wasted, and the graphite is heated unevenly.

[0004] Therefore, in order to solve such problems, we proposed a heat preservation structure of a graphitization furnace. Utility Model Content

[0005] The utility model aims to solve the structural limitations of the prior art, in which smoke is directly discharged to the outside of the furnace body, the waste heat of the smoke is wasted, and the graphite is heated unevenly, and proposes a heat preservation structure for a graphitization furnace.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an exhaust gas filtering and discharging structure for ammonium carbonate production, comprising a constant temperature structure, the constant temperature structure comprising an outer shell, a connecting block is provided at the bottom of the inner wall of the outer shell, an isolating cylinder is provided on the side of the connecting block away from the outer shell, an insulation component is provided between the outer shell and the isolating cylinder, a sealing ring is provided above the isolating cylinder, an inner shell is provided on the inner side of the isolating cylinder, a bottom shell is provided below the inner shell, a heating element is provided on the outer wall of the inner shell, a top plate is provided above the inner shell, a driving gear is provided on the upper surface of the top plate, a driven gear is provided on one side of the driving gear, a stirring piece is provided below the driven gear, a gear ring is provided on the side of the driven gear away from the driving gear, a motor is provided above the driving gear, a rotating rod is provided at the output end of the motor, a fixed rod is provided below the rotating rod, a scraper is provided on the side of the fixed rod away from the rotating rod, a discharge pipe is provided below the bottom shell, a valve is provided on the discharge pipe, the rotating rod is driven by the motor to rotate, the rotating rod drives the stirring piece and the scraper to make a circular motion with the rotating rod, the rotating rod drives the driving gear to rotate, and the driving gear drives the driven gear and the gear ring to rotate.

[0007] Preferably, a supporting structure is provided below the constant temperature structure, the supporting structure comprises a bottom plate, and supporting legs are provided below the bottom plate.

[0008] Preferably, a connecting block is provided at the bottom of the inner wall of the shell, and an isolating cylinder is provided on a side of the connecting block away from the shell.

[0009] Preferably, a driving gear is provided on the upper surface of the top plate, a driven gear is provided on one side of the driving gear, and a gear ring is provided on the side of the driven gear away from the driving gear.

[0010] Preferably, a rotating rod is provided at the output end of the motor, a fixed rod is provided below the rotating rod, and a scraper is provided on a side of the fixed rod away from the rotating rod.

[0011] Preferably, an inner shell is provided on the inner side of the isolation cylinder, and a heating element is provided on the outer wall of the inner shell.

[0012] The utility model has the following beneficial effects:

[0013] In the utility model, a cavity is formed by arranging an outer shell and an isolation tube outside the inner shell to isolate the inner shell from the outside temperature. An insulation component is arranged between the outer shell and the isolation tube. The insulation component is located in the cavity, and the insulation component performs secondary temperature isolation on the inner shell to prevent temperature loss and heat loss, thereby effectively reducing heat loss. The structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional schematic diagram of a heat preservation structure of a graphitization furnace proposed by the utility model;

[0015] Figure 2This is a three-dimensional exploded view of a heat preservation structure of a graphitization furnace proposed by the utility model;

[0016] Figure 3 A three-dimensional exploded view of a stirring structure of a heat preservation structure of a graphitization furnace proposed by the utility model;

[0017] Figure 4 A three-dimensional exploded view of a stirring member of a heat preservation structure of a graphitization furnace proposed by the utility model;

[0018] Figure 5 The utility model provides a schematic plan view of a shell of a heat preservation structure of a graphitization furnace.

[0019] Legend:

[0020] 1. Constant temperature structure; 11. Outer shell; 111. Connecting block; 112. Isolation cylinder; 113. Insulation assembly; 12. Sealing ring; 13. Inner shell; 131. Bottom shell; 132. Heating element; 14. Top plate; 15. Driving gear; 151. Driven gear; 152. Agitator; 153. Gear ring; 16. Motor; 161. Rotating rod; 162. Fixed rod; 163. Scraper; 17. Discharge pipe; 171. Valve; 2. Support structure; 21. Bottom plate; 22. Support legs. DETAILED DESCRIPTION

[0021] 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 in 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.

[0022] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Reference Figure 1-5The utility model provides an embodiment: an exhaust gas filtration and emission structure for ammonium carbonate production, including a constant temperature structure 1, the constant temperature structure 1 includes a shell 11, the shell 11 is used for heat preservation, the inner wall bottom of the shell 11 is provided with a connecting block 111, the connecting block 111 is used to connect the shell 11 and the isolation tube 112, the side of the connecting block 111 away from the shell 11 is provided with an isolation tube 112, and an insulation component 113 is provided between the shell 11 and the isolation tube 112, the insulation component 113 is used to keep graphite warm, and the isolation tube 112 is used to keep Temperature, a sealing ring 12 is provided above the isolation cylinder 112, and the function of the sealing ring 12 is to seal the top of the outer shell 11, an inner shell 13 is provided on the inner side of the isolation cylinder 112, and the function of the inner shell 13 is to place graphite, a bottom shell 131 is provided below the inner shell 13, and the function of the bottom shell 131 is to support the inner shell 13, a heating element 132 is provided on the outer wall of the inner shell 13, and the function of the heating element 132 is to heat the graphite, a top plate 14 is provided above the inner shell 13, and the function of the top plate 14 is to seal the top of the inner shell 13, and a driving gear 15 is provided on the upper surface of the top plate 14, The driving gear 15 is used to drive the driven gear 151 to rotate. A driven gear 151 is provided on one side of the driving gear 15. The driven gear 151 is used to drive the gear ring 153 to rotate. A stirring member 152 is provided below the driven gear 151. The stirring member 152 is used to make the graphite heated evenly. A gear ring 153 is provided on the side of the driven gear 151 away from the driving gear 15. The gear ring 153 is used to limit the driven gear 151. A motor 16 is provided above the driving gear 15. The motor 16 is used to drive the rotating rod 16 1 is rotated, a rotating rod 161 is provided at the output end of the motor 16, the function of the rotating rod 161 is to drive the fixed rod 162 to rotate, a fixed rod 162 is provided below the rotating rod 161, the function of the fixed rod 162 is to fix the scraper 163, a scraper 163 is provided on the side of the fixed rod 162 away from the rotating rod 161, the function of the scraper 163 is to clean the inner wall of the inner shell 13, a discharge pipe 17 is provided below the bottom shell 131, the function of the discharge pipe 17 is to discharge material, and a valve 171 is provided on the discharge pipe 17, the function of the valve 171 is to control the discharge of material.

[0024] The motor 16 drives the rotating rod 161 to rotate, and the rotating rod 161 drives the stirring member 152 and the scraper 163 to make a circular motion with the rotating rod 161, and the rotating rod 161 drives the driving gear 15 to rotate, and the driving gear 15 drives the driven gear 151 and the gear ring 153 to rotate.

[0025] A support structure 2 is provided below the thermostatic structure 1. The support structure 2 includes a bottom plate 21. The bottom plate 21 is used to support the thermostatic structure 1. Support legs 22 are provided below the bottom plate 21. The support legs 22 are used to support the entire device.

[0026] A connecting block 111 is provided at the bottom of the inner wall of the outer shell 11 . An isolating cylinder 112 is provided on a side of the connecting block 111 away from the outer shell 11 . The outer shell 11 and the isolating cylinder 112 are fixedly connected via the connecting block 111 .

[0027] A driving gear 15 is disposed on the upper surface of the top plate 14 , a driven gear 151 is disposed on one side of the driving gear 15 , a gear ring 153 is disposed on the side of the driven gear 151 away from the driving gear 15 , the driving gear 15 is meshedly connected with the driven gear 151 , and the driven gear 151 is meshedly connected with the gear ring 153 .

[0028] A rotating rod 161 is provided at the output end of the motor 16 , a fixed rod 162 is provided below the rotating rod 161 , a scraper 163 is provided on the side of the fixed rod 162 away from the rotating rod 161 , and the rotating rod 161 and the scraper 163 are fixedly connected via the fixed rod 162 .

[0029] Preferably, an inner shell 13 is provided on the inner side of the isolation cylinder 112 , a heating element 132 is provided on the outer wall of the inner shell 13 , and the inner shell 13 is fixedly connected to the heating element 132 .

[0030] Working principle: first, after loading graphite into the inner shell 13, start the motor 16 to drive the rotating rod 161 to rotate, the rotating rod 161 drives the stirring member 152 and the scraper 163 to make a circular motion with the rotating rod 161, the rotating rod 161 drives the driving gear 15 to rotate, the driving gear 15 drives the driven gear 151 and the gear ring 153 to rotate, so that the stirring member 152 stirs the graphite, so that the graphite is heated evenly, and the isolation cylinder 112 and the heating element 132 are used to continuously keep the graphite warm, thereby avoiding heat loss and effectively reducing heat loss. The structure is simple and easy to operate.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat preservation structure of a graphitization furnace, comprising a constant temperature structure (1), characterized in that: The constant temperature structure (1) comprises an outer shell (11), a connection block (111) is provided at the bottom of the inner wall of the outer shell (11), an isolation cylinder (112) is provided on the side of the connection block (111) away from the outer shell (11), a temperature insulation component (113) is provided between the outer shell (11) and the isolation cylinder (112), a sealing ring (12) is provided above the isolation cylinder (112), an inner shell (13) is provided on the inner side of the isolation cylinder (112), a bottom shell (131) is provided below the inner shell (13), a heating element (132) is provided on the outer wall of the inner shell (13), a top plate (14) is provided above the inner shell (13), a driving gear (15) is provided on the upper surface of the top plate (14), a driven gear (151) is provided on one side of the driving gear (15), a stirring element (152) is provided below the driven gear (151), and the driven gear (151) is provided at a lower portion thereof. A gear ring (153) is provided on a side away from the driving gear (15), a motor (16) is provided above the driving gear (15), a rotating rod (161) is provided at the output end of the motor (16), a fixed rod (162) is provided below the rotating rod (161), a scraper (163) is provided on a side of the fixed rod (162) away from the rotating rod (161), a discharge pipe (17) is provided below the bottom shell (131), a valve (171) is provided on the discharge pipe (17), the rotating rod (161) is driven by the motor (16) to rotate, the rotating rod (161) drives the stirring element (152) and the scraper (163) to make a circular motion with the rotating rod (161), the rotating rod (161) drives the driving gear (15) to rotate, and the driving gear (15) drives the driven gear (151) and the gear ring (153) to rotate.

2. The heat preservation structure of a graphitization furnace according to claim 1, characterized in that: A support structure (2) is provided below the constant temperature structure (1), the support structure (2) comprises a bottom plate (21), and support legs (22) are provided below the bottom plate (21).

3. The heat preservation structure of a graphitization furnace according to claim 1, characterized in that: The housing (11) and the isolation cylinder (112) are fixedly connected via a connecting block (111).

4. The heat preservation structure of a graphitization furnace according to claim 1, characterized in that: The driving gear (15) is meshedly connected with the driven gear (151), and the driven gear (151) is meshedly connected with the gear ring (153).

5. The heat preservation structure of a graphitization furnace according to claim 1, characterized in that: The rotating rod (161) and the scraper (163) are fixedly connected via a fixing rod (162).

6. The heat preservation structure of a graphitization furnace according to claim 1, characterized in that: The inner shell (13) is fixedly connected to the heating element (132).

Images