Tandem graphitization furnace

Abstract

The utility model relates to a tandem graphitization furnace in the technical field of graphitization furnaces, which comprises a furnace body with two furnace chambers along the width direction of the furnace body, a furnace end electrode is arranged at the head end of each furnace chamber, a furnace tail electrode is arranged at the tail end of each furnace end electrode, and limiting structures for limiting roasted products are arranged on two sides of each furnace chamber; the limiting structure comprises a fixed seat and a V-shaped frame which are mounted on the inner bottom surface of the furnace chamber, the closed side of the V-shaped frame is correspondingly hinged to the upper end part of the fixed seat, the open side of the V-shaped frame faces the middle part of the width direction of the furnace chamber, the two side walls of the open side are rotationally connected with limiting wheels, and the upper limiting wheel is correspondingly positioned on the outer side of the lower limiting wheel; due to the arrangement of the limiting structure, the positions of the two limiting wheels can be changed in a self-adaptive mode according to the shapes of the roasted products, limiting operation on the roasted products is completed, it is guaranteed that the multiple butted roasted products are in a coaxial posture, and the device not only can adapt to cylindrical roasted products, but also can adapt to cuboid roasted products.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of graphitization furnace, especially to a series connection graphitization furnace. BACKGROUND

[0002] The series connection graphitization is a kind of resistance furnace that directly passes current into the calcined product connected in series, and uses the resistance of the product itself to convert electric energy into heat energy to graphitize the product;It is commonly used for processing negative material graphitization. Generally includes furnace body, furnace head electrode, furnace tail electrode (movable electrode) and hydraulic device for extruding furnace tail electrode, and pressing calcined product.

[0003] However, the existing calcined product is mostly cylindrical and cuboid, and the Chinese patent with publication number CN215798525U discloses a new type of negative material graphitization special inner heat series connection graphitization furnace, the bottom of the furnace cavity of the graphitization furnace is provided with a coaxial support with arc-shaped concave top and needs to be frequently disassembled, so as to ensure that multiple calcined products are located on the same axis and avoid misalignment. However, the graphitization furnace can only adapt to cylindrical calcined products, and cannot adapt to cuboid calcined products, and the applicability needs to be improved. In addition, in order to ensure that the calcined products in the two furnace cavities can be pressed tightly, each furnace tail electrode corresponds to a hydraulic rod, which is not conducive to reducing the production cost.

[0004] Therefore, we design a series connection graphitization furnace to solve at least one of the above problems. INVENTION CONTENTS

[0005] In order to overcome the deficiencies in the background art, the utility model discloses a series connection graphitization furnace.

[0006] In order to achieve the above invention purposes, the utility model adopts the following technical scheme:

[0007] A series connection graphitization furnace includes a furnace body with two furnace cavities along its width direction, the head end of the furnace cavity is provided with a furnace head electrode, the tail end of the furnace head electrode is provided with a furnace tail electrode, and the two sides of the furnace cavity are provided with a limiting structure for limiting the calcined product.

[0008] The limiting structure includes a fixed seat installed on the bottom surface of the furnace cavity and a V-shaped support, the closed side of the V-shaped support is hinged to the upper end of the fixed seat, the open side of the V-shaped support faces the middle part of the width direction of the furnace cavity, and the two side walls of the open side are both rotationally connected with a limiting wheel, and the limiting wheel above corresponds to the outside of the limiting wheel below.

[0009] Preferably, the closed side of the V-shaped support is provided with a counterweight extending outward.

[0010] Preferably, each end of the two side walls of the open side of the V-shaped support is rotationally connected with a limiting wheel.

[0011] Preferably, the furnace cavity is uniformly spaced with a plurality of limiting structures along the length of each side.

[0012] Preferably, the furnace tail electrode is movably penetrated through the furnace wall at the tail end of the furnace body.

[0013] Preferably, it further comprises a driving assembly for driving the movement of the furnace tail electrode, so as to drive the furnace tail electrode to press the sintered product.

[0014] Preferably, the driving assembly comprises a hydraulic cylinder and a floating frame, the middle part of the floating frame is correspondingly hinged to the telescopic shaft of the hydraulic cylinder, and the two ends of the floating frame are correspondingly hinged to the outer ends of the corresponding furnace tail electrodes.

[0015] Preferably, the floating frame is made of insulating material.

[0016] Preferably, the position of the furnace tail electrode outside the furnace body is provided with a sealing plate.

[0017] Preferably, the outer ends of the two furnace tail electrodes are electrically connected.

[0018] Due to the adoption of the technical scheme as described above, the utility model has the following beneficial effects:

[0019] 1. The limiting structure is provided, the positions of the two limiting wheels can be self-adaptively changed according to the shape of the sintered product, the limiting operation of the sintered product is completed, the multiple butt-jointed sintered products are ensured to be in the coaxial posture, not only the cylindrical sintered product can be adapted, but also the cuboid sintered product can be adapted;

[0020] 2. The counterweight in the limiting structure is provided, the inside space of the two corresponding limiting structures can be caused to be in the eight-shaped structure before the sintered product is loaded, the falling space is provided for the loading of the sintered product, and the artificial correction and disassembly operation of the limiting structure is not needed;

[0021] 3. The driving assembly is provided, only one hydraulic cylinder can complete the operation of two hydraulic cylinders in the prior art, and the number of hydraulic cylinders is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view in the prior art;

[0023] Figure 2 It is a structural schematic view of the utility model;

[0024] Figure 3 It is a sectional view of the furnace body in the utility model;

[0025] Figure 4 It is a sectional view of the furnace body when the furnace cavity is loaded with the cuboid sintered product in the utility model;

[0026] Figure 5 Figure is the furnace cavity loading cylindrical roasting products state under the furnace body sectional view of the utility model;

[0027] Figure 6 Figure is the structure diagram of the limiting structure of the utility model;

[0028] Figure 7 Figure is the structure diagram of the driving assembly of the utility model.

[0029] In the figure: 1, furnace body; 2, furnace head electrode; 3, furnace tail electrode; 4, limiting structure; 41, fixed seat; 42, V-shaped frame; 43, limiting wheel; 44, counterweight; 5, driving assembly; 51, hydraulic cylinder; 52, floating frame; 6, plugging plate. DETAILED DESCRIPTION

[0030] The utility model can be explained in detail through the following examples, the purpose of the utility model is disclosed to protect all technical improvements within the scope of the utility model, in the description of the utility model, it needs to be understood that if there are terms "upper", "lower", "front", "rear", "left", "right" and the like indicate the orientation or positional relationship, only the corresponding of the drawings of the present application, in order to facilitate the description of the utility model; It needs to be understood that if there are terms "end", "side", "end portion", "side portion", "transverse", "longitudinal" and the like indicate the orientation or positional relationship, only the length and width of the corresponding component correspond, that is, "end portion" indicates the head-tail area of the length direction of the corresponding component, "side portion" indicates the head-tail area of the width direction of the corresponding component; In order to facilitate the description of the utility model and not indicate or imply that the device or element referred to must have a particular orientation.

[0031] Example one, combined with the drawings Figures 2-5 A series of graphitization furnaces, including the furnace body 1 along its width direction has two furnace cavities, specifically, the furnace body 1 middle part has the furnace inner partition, the space in the furnace body 1 is divided into two independent furnace cavities; The furnace cavity head end is equipped with the furnace head electrode 2, and the furnace tail electrode 3 is arranged at the tail end of the furnace head electrode 2; According to the need, the furnace head electrode 2 is fixedly installed at the furnace cavity head end, and two furnace head electrodes 2 are respectively connected to the positive and negative poles of the power transmission line; According to the need, the furnace head electrode 2 can also be movably penetrated through the head end furnace cavity of the furnace body 1, at this time, the outer end of the furnace head electrode 2 needs to be matched with the pressing device to press the furnace head electrode 2; According to the need, the outer end of the two furnace tail electrodes 3 is electrically connected; Preferably, the furnace tail electrode 3 is provided with a conductive aluminum bar or copper bar, and the two conductive aluminum bars or copper bars are connected by a flexible conductive structure. The two sides of the furnace cavity are provided with limiting structures 4 for limiting the roasting products;

[0032] Combined with the drawings Figure 6, the limiting structure 4 includes a fixed seat 41 installed on the bottom surface of the furnace cavity and a V-shaped frame 42, the closed side of the V-shaped frame 42 is hingedly connected to the upper end of the fixed seat 41, and specifically, the center axis of rotation of the V-shaped frame 42 is parallel to the center line of the length direction of the furnace cavity. If necessary, the V-shaped frame 42 is rotatably connected to the fixed seat 41 through a pin shaft. The open side of the V-shaped frame 42 faces the middle of the width direction of the furnace cavity, and the two side walls of the open side are rotatably connected to limiting wheels 43; if necessary, the closed side of the V-shaped frame 42 is provided with a counterweight 44 extending outward, so that the upper limiting wheels 43 correspond to the outside of the lower limiting wheels 43, that is, the distance between the two upper limiting wheels 43 in the two limiting structures 4 is greater than the distance between the two lower limiting wheels 43.

[0033] In this way, the two limiting structures 4 can clamp and limit the cylindrical baking products, and can also clamp and limit the rectangular baking products. The clamping and limiting of the rectangular baking products will be described below: before loading the baking products, the distance between the two upper limiting wheels 43 in the two limiting structures 4 is greater than the width of the prismatic baking product, and the distance between the two lower limiting wheels 43 in the two limiting structures 4 is less than the width of the prismatic baking product. When loading the prismatic baking product, the lower limiting wheels 43 are extruded and moved outward, at the same time driving the V-shaped frame 42 to rotate, so that the upper limiting wheels 43 move inward, realizing that the lower limiting wheels 43 and the upper limiting wheels 43 jointly clamp the baking product under the limitation of the V-shaped frame 42.

[0034] Further, since the graphitization furnace generally needs to graphitize multiple baking products at a time, multiple limiting structures 4 are uniformly and spaced apart in the length direction of each side of the furnace cavity; if necessary, the multiple limiting structures 4 on both sides of the furnace cavity are symmetrically arranged.

[0035] Further, each end of the two side walls of the open side of the V-shaped frame 42 is rotatably connected to a limiting wheel 43; preferably, all the limiting wheels 43 of the same side and the same height are distributed at equal intervals. Of course, they can also be distributed at unequal intervals, which is not limited here.

[0036] Embodiment two, combined with the attached Figure 2 A series connection graphitization furnace, based on embodiment one, the furnace tail electrode 3 movably penetrates the tail end furnace wall of the furnace body 1;

[0037] The furnace tail electrode 3 can be fixed by the fixed mode in the prior art; the furnace tail electrode 3 can also be driven and moved by the driving assembly 5.

[0038] Further, combined with the attached Figure 7 The driving assembly 5 includes a hydraulic cylinder 51 and a floating frame 52, the middle part of the floating frame 52 is hingedly connected to the telescopic shaft of the hydraulic cylinder 51, and the two ends of the floating frame 52 are respectively hingedly connected to the outer ends of the corresponding furnace tail electrodes 3;

[0039] Because of the setting of the floating frame 52, when the length of the baking products in the two furnace cavities is different due to the precision of the baking products, compared with the prior art, the position of the two furnace tail electrodes 3 can be adjusted by the rotation of the floating frame 52, and the function of automatically adapting to the compression of the baking products in the two furnace cavities is realized. Figure 1

[0040] Further, in order to prevent the electric energy of the furnace tail electrode 3 from affecting the hydraulic cylinder 51, the floating frame 52 is made of an insulating material, such as a high-temperature-resistant material such as ceramic.

[0041] Embodiment three, combined with the drawings Figure 2 , 7 A series of graphitization furnaces, based on embodiment two, due to the rotation of the floating frame 52, the furnace tail electrode 3 will also shift correspondingly, therefore the hole size of the furnace wall at the tail end of the furnace body 1 for the furnace tail electrode 3 to pass through needs to be slightly larger than the size of the furnace tail electrode 3, in order to prevent the temperature in the furnace cavity from being ejected outward, a plugging plate 6 is arranged at the position of the furnace tail electrode 3 outside the furnace body 1; that is, the gap between the furnace tail electrode 3 and the hole in the furnace wall at the tail end of the furnace body 1 can be blocked by the plugging plate 6, preventing the temperature in the furnace cavity from being ejected outward.

[0042] It should be noted that the plugging plate 6 can move along the moving direction of the furnace tail electrode 3, and in use, the plugging plate 6 is fixed by bolts or existing fixing methods.

[0043] The parts not described in detail in the utility model are prior art, and for those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model; therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and all changes falling within the meaning and scope of equivalent elements are intended to be included in the utility model.​

Claims

1. A series connection graphitization furnace comprising a furnace body (1) having two furnace cavities in the width direction thereof, a furnace head electrode (2) provided at the head end of the furnace cavities, and a furnace tail electrode (3) provided at the tail end of the furnace head electrode (2), characterized in that: The furnace cavity is provided with limiting structures (4) on both sides for limiting the calcined products; The limiting structure (4) comprises a fixed seat (41) mounted on the bottom surface of the furnace cavity and a V-shaped frame (42), the closed side of the V-shaped frame (42) is correspondingly hinged to the upper end of the fixed seat (41), the open side of the V-shaped frame (42) faces the middle part of the width direction of the furnace cavity, the two side walls of the open side are both rotationally connected with limiting wheels (43), and the upper limiting wheel (43) is correspondingly located outside the lower limiting wheel (43).

2. A series graphite furnace according to claim 1, characterized in that: The closed side of the V-shaped frame (42) is provided with a counterweight (44) extending outward.

3. A series graphite furnace as claimed in claim 1, wherein: Each end of the two side walls of the open side of the V-shaped frame (42) is rotationally connected with a limiting wheel (43).

4. A series graphite furnace as claimed in claim 1, wherein: A plurality of limiting structures (4) are uniformly and spacedly arranged on each side of the furnace cavity along the length direction thereof.

5. A series graphite furnace as claimed in claim 1, wherein: The furnace tail electrode (3) movably penetrates the tail end furnace wall of the furnace body (1).

6. A series graphite furnace according to claim 5, characterized in that: Further comprising a driving assembly (5) for driving the movement of the furnace tail electrode (3) so as to press the calcined products.

7. A series graphite furnace according to claim 6, characterized in that: The driving assembly (5) comprises a hydraulic cylinder (51) and a floating frame (52), the middle part of the floating frame (52) is correspondingly hinged to the telescopic shaft of the hydraulic cylinder (51), and the two ends of the floating frame (52) are correspondingly hinged to the outer ends of the corresponding furnace tail electrodes (3), respectively.

8. A series graphite furnace according to claim 7, characterized in that: The floating frame (52) is made of insulating material.

9. A series graphite furnace as claimed in claim 6, wherein: The position of the furnace tail electrode (3) outside the furnace body (1) is provided with a blocking plate (6).

10. A series graphite furnace as claimed in claim 1, wherein: The outer ends of the two furnace tail electrodes (3) are electrically connected.

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