Sintering furnace and nickel electrode atmosphere tunnel furnace

Abstract

The present invention provides a sintering furnace and a nickel electrode atmosphere tunnel furnace, which relate to the technical field of tunnel furnaces and solve the technical problem in the prior art that a sintering furnace needs to be shut down for maintenance due to mechanical failure. The sintering furnace comprises a furnace body with a furnace chamber, and the opposite ends of the furnace body are open. A processing door and a material guide assembly are arranged at the open end. The processing door comprises a front processing door and a rear processing door. The material guide assembly comprises a front material guide cavity, a rear material guide cavity, a main pushing mechanism and a guide mechanism; the front processing door is connected between the furnace body and the front material guide cavity, and the main pushing mechanism is located on one side of the front material guide cavity, and is used to send the product in the front material guide cavity into the furnace chamber; the rear processing door is connected between the furnace body and the rear material guide cavity, and the guide mechanism is located on one side of the rear material guide cavity, and is used to move the product in the furnace chamber out of the rear material guide cavity. The nickel electrode atmosphere tunnel furnace comprises the aforementioned sintering furnace. The sintering furnace and the nickel electrode atmosphere tunnel furnace can handle mechanical failures without stopping the furnace.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel furnaces, in particular to a sintering furnace and a nickel electrode atmosphere tunnel furnace. Background Art

[0002] As a part of the tunnel furnace, the sintering furnace is a mechanical equipment that completes the sintering of materials through heat conduction, convection and radiation.

[0003] Generally, the sintering furnace includes a furnace body with a furnace chamber, one end of the furnace body is a feed end, and the other end is a discharge end. The feed end of the furnace body is provided with a first mechanical component for allowing the product to enter and perform gas replacement, and the discharge end is provided with a second mechanical component for sending the product out and performing gas replacement, wherein both the first mechanical component and the second mechanical component include two inner and outer gates.

[0004] The sintering furnace often encounters some mechanical failures during use. When the first mechanical component or the second mechanical component fails, for example, when the two gates or one of the gates fails, it is very likely that the furnace will be connected to the outside world, thereby causing the outside air to enter the furnace, which will have an adverse effect on the sintering of the product in the furnace and even make the product scrapped. Therefore, in order to protect the product in the furnace, the furnace is usually shut down to repair the fault. This treatment method is not only inefficient, but also has a great impact on the product being fired.

[0005] Specifically, the adverse effects of furnace shutdown are: 1. The heating and cooling process takes a lot of time; 2. The heating and cooling process causes great damage to the product, furnace materials, heating elements, and temperature measuring elements. Summary of the invention

[0006] The object of the present invention is to provide a sintering furnace to alleviate the technical problem in the prior art that the sintering furnace needs to be shut down for maintenance due to mechanical failure.

[0007] The sintering furnace provided by the present invention comprises: a furnace body having a furnace chamber, wherein the opposite ends of the furnace body are open, and a processing door and a material guide assembly are arranged at the open position, wherein the processing door comprises a front processing door and a rear processing door, and the material guide assembly comprises a front material guide cavity, a rear material guide cavity, a main pushing mechanism and a guide-away mechanism;

[0008] The front processing door is connected between the furnace body and the front material guiding cavity, and the main pushing mechanism is located at one side of the front material guiding cavity, and is used to send the product in the front material guiding cavity into the furnace;

[0009] The post-processing door is connected between the furnace body and the post-material guiding cavity, and the guide mechanism is located at one side of the post-material guiding cavity, and is used to move the product in the furnace to the post-material guiding cavity.

[0010] Furthermore, the processing door includes a door body, a first door panel opening arranged on the door body, a gate plate slidably connected to the door body, and a first driving mechanism that drives the gate plate to move to open or close the first door panel opening; the gate plate also includes a second door panel opening arranged opposite to the first door panel opening, one of the first door panel opening and the second door panel opening is connected to the furnace, and the other is connected to the front material guide cavity or the rear material guide cavity.

[0011] Furthermore, the first driving mechanism includes a power component and a lifting plate transmission-connected to the power component; the lifting plate is slidably connected to the door body, and a limit block is provided between the two, the limit block is movably connected to the door body and the lifting plate respectively, and the limit block is connected to the side of the gate plate away from the first door panel opening, so that the gate plate opens or closes the first door panel opening.

[0012] Furthermore, a guide hole is provided on the limit block, and a roller bearing is connected between the door body and the limit block; the extension direction of the guide hole is set at an angle with the plate surface of the gate plate.

[0013] Furthermore, the door body includes a base plate, and the first door panel opening is arranged on the base plate; a sealing component is provided between the gate plate and the base plate.

[0014] Furthermore, the sealing assembly includes a sealing plate and a pressure plate, wherein the sealing plate is arranged between the gate plate and the pressure plate; a boss is provided on the side of the sealing plate facing away from the gate plate, and an opening for passing the boss is provided on the limit block, and the boss passes through the opening to tightly abut against the base plate.

[0015] Furthermore, the power assembly includes a telescopic element, an output end of the telescopic element is connected to the lifting plate, and the telescopic element is installed on the door body.

[0016] Alternatively, the power assembly includes a first rotating element, a first screw transmission-connected to the first rotating element, a first nut threadedly connected to the first screw and moving axially along the first screw, the first screw is rotationally connected to the door body, and the lifting plate is connected to the first nut.

[0017] Furthermore, the decoupling mechanism includes a second rotating element, a second lead screw transmission-connected to the second rotating element, and a second nut threadedly connected to the second lead screw and moving axially along the second lead screw; a carrier plate is provided on the second lead nut, the carrier plate is located in the rear material guide cavity, and is used to receive the sintered product.

[0018] Furthermore, the second rotating element includes a rotating handle; the lead-away mechanism includes a sealed lead-away cavity, the second lead screw is rotatably connected to the lead-away cavity, and the rotating handle is arranged at the end of the second lead screw outside the lead-away cavity.

[0019] Beneficial effects:

[0020] The sintering furnace provided by the present invention, when in use, the product to be sintered is sent into the furnace from the front material guide cavity by the main pushing mechanism for sintering. After the sintering is completed, the product in the furnace is moved to the rear material guide cavity under the action of the guide mechanism, thereby completing the feeding, sintering and discharging of the product. In this process, the furnace is connected with the front material guide cavity and the rear material guide cavity. When a mechanical failure occurs outside the furnace body, in the sintering furnace of the present invention, the front processing door and the rear processing door can be closed to make the two ends of the furnace body open and closed, so that the furnace is separated from the front material guide cavity and the rear material guide cavity respectively, and at this time, the furnace will be in a sealed state. In the sealed state of the furnace, on the one hand, the high temperature in the furnace can continue to sinter the product, and on the other hand, it can slow down the loss of heat in the furnace, that is, after the front processing door and the rear processing door are closed, it can still ensure that the furnace body is in a state of not stopping the furnace. At this time, any mechanical component with mechanical failure outside the furnace body can be repaired.

[0021] From the foregoing, it can be seen that the sintering furnace provided by the present invention can repair mechanical faults on the outside of the furnace body without stopping the furnace. At the same time, during the maintenance process, it can also ensure that the outside air does not enter the furnace. Therefore, the furnace body can maintain a relatively stable temperature, saving the time required to heat up the furnace after the existing shutdown maintenance. At the same time, since the furnace does not need to be heated, this also avoids the adverse effects of the heating process on the product, and to a certain extent, also guarantees the quality of the product.

[0022] The second object of the present invention is to provide a nickel electrode atmosphere tunnel furnace to alleviate the technical problem in the prior art that the sintering furnace needs to be shut down for maintenance due to mechanical failure.

[0023] The nickel electrode atmosphere tunnel furnace provided by the present invention comprises: a conveying mechanism, a binder removal furnace and the above-mentioned sintering furnace; the conveying mechanism is used to convey the product into the binder removal furnace, and then convey the product from the binder removal furnace to the front guide material cavity.

[0024] Beneficial effects:

[0025] The nickel electrode atmosphere tunnel furnace provided by the present invention includes the above-mentioned sintering furnace, wherein the specific structure, connection relationship and beneficial effects of the sintering furnace have been described in detail in the above text and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A simplified structural diagram of a sintering furnace provided in an embodiment of the present invention, wherein the arrows shown in the diagram indicate the movement direction of the product;

[0028] Figure 2 for Figure 1 The sintering furnace shown is a schematic diagram showing only part of the structure;

[0029] Figure 3 It is a schematic diagram of the first structure of the processing door;

[0030] Figure 4 for Figure 3 Schematic diagram from another perspective;

[0031] Figure 5 for Figure 3 The processing door shown does not show a schematic diagram of the structure of part of the door body;

[0032] Figure 6 for Figure 5 A local enlarged schematic diagram of point A is shown;

[0033] Figure 7 for Figure 5 A schematic longitudinal section of the treatment door shown;

[0034] Figure 8 It is a schematic diagram of the second structure of the processing door;

[0035] Fig. 9 For along Figure 7 Sectional view of the middle BB line;

[0036] Fig.10 for Fig. 9 A local enlarged schematic diagram of point C is shown;

[0037] Fig.11 for Figure 1 The sintering furnace shown is a schematic diagram showing only part of the structure;

[0038] Fig.12 It is a structural schematic diagram of the lead-away mechanism and the post-processing door;

[0039] Fig.13 It is a schematic diagram of the structure of the first part of the lead-away mechanism;

[0040] Fig.14 It is a schematic diagram of the structure of the second part of the lead-away mechanism;

[0041] Fig.15 A schematic diagram of the structure of a nickel electrode atmosphere tunnel furnace provided by an embodiment of the present invention;

[0042] Fig.16 for Fig.15 Schematic diagram of the movement trajectory of products in the nickel electrode atmosphere tunnel furnace.

[0043] Icon: 10-sintering furnace; 20-debinding furnace;

[0044] 100-furnace body; 110-transition chamber;

[0045] 200-pre-treatment door; 210-door body; 211-first door panel opening; 212-second door panel opening; 213-guide rail; 220-gate plate; 221-sealing plate; 222-pressing plate; 230-first driving mechanism; 231-power assembly; 2311-telescopic element; 2312-connecting plate; 2313-guide rod; 2314-first rotating element; 2315-first lead screw; 2316-first nut; 232-lifting plate; 233-limiting block; 2331-guide hole; 234-roller bearing; 240-base plate;

[0046] 300-post-processing door; 400-front material guiding cavity; 500-rear material guiding cavity; 600-main pushing mechanism;

[0047] 700-leading mechanism; 710-second rotating element; 720-second lead screw; 730-second nut; 740-carrying plate; 750-leading cavity; 760-detection assembly; 761-detection cylinder; 762-detection shaft;

[0048] 800-feeding assembly; 810-front displacement chamber; 820-front intermediate gate; 830-entrance gate; 840-feeding horizontal push; 850-front processing window; 860-front viewing window;

[0049] 900-discharging assembly; 910-rear displacement chamber; 920-rear intermediate gate; 930-exit gate; 940-discharging horizontal push. DETAILED DESCRIPTION

[0050] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] This embodiment provides a sintering furnace 10, such as Figure 1 As shown, the sintering furnace 10 includes a furnace body 100 with a furnace chamber, and the opposite ends of the furnace body 100 are openly arranged, and a processing door and a material guiding assembly are provided at the open position, the processing door includes a front processing door 200 and a rear processing door 300, and the material guiding assembly includes a front material guiding cavity 400, a rear material guiding cavity 500, a main pushing mechanism 600 and a lead-away mechanism 700; the front processing door 200 is connected between the furnace body 100 and the front material guiding cavity 400, and the main pushing mechanism 600 is located at one side of the front material guiding cavity 400, and is used to deliver the product in the front material guiding cavity 400 into the furnace chamber; the rear processing door 300 is connected between the furnace body 100 and the rear material guiding cavity 500, and the lead-away mechanism 700 is located at one side of the rear material guiding cavity 500, and is used to move the product in the furnace chamber to the rear material guiding cavity 500.

[0052] The sintering furnace 10 provided in the present embodiment, when in use, the product to be sintered is sent into the furnace from the front material guiding cavity 400 through the main pushing mechanism 600 for sintering. After sintering is completed, the product in the furnace is moved to the rear material guiding cavity 500 under the action of the guide mechanism 700, thereby completing the feeding, sintering and discharging of the product. In this process, the furnace is connected with the front material guiding cavity 400 and the rear material guiding cavity 500. When a mechanical failure occurs outside the furnace body 100, in the sintering furnace 10 of the present embodiment, the front processing door 200 and the rear processing door 300 can be closed to make the two ends of the furnace body 100 open and closed, thereby separating the furnace from the front material guiding cavity 400 and the rear material guiding cavity 500 respectively, and at this time, the furnace will be in a sealed state. When the furnace is sealed, the high temperature in the furnace can continue to sinter the product, and can slow down the heat loss in the furnace. That is, after the front processing door 200 and the post-processing door 300 are closed, the furnace body 100 can still be kept in a non-stop state. At this time, any mechanical parts with mechanical failure outside the furnace body 100 can be repaired.

[0053] From the foregoing, it can be seen that the sintering furnace 10 provided in this embodiment is capable of repairing external mechanical faults of the furnace body 100 without stopping the furnace. At the same time, during the maintenance process, it can also ensure that the outside air does not enter the furnace chamber. Therefore, the furnace body 100 can maintain a relatively stable temperature, saving the time required to heat up the furnace chamber after the existing shutdown for maintenance. At the same time, since the furnace chamber does not need to be heated, this also avoids the adverse effects of the heating process on the product, and to a certain extent, also ensures the quality of the product.

[0054] In this embodiment, if Figure 2As shown, one end of the front processing door 200 is connected to the furnace body 100 through the transition cavity 110, and the other end is connected to the front material guiding cavity 400. Specifically, a flange is provided on the side of the transition cavity 110 away from the front processing door 200, and is connected to an opening at one end of the furnace body 100 through the flange. In one embodiment, the main pushing mechanism 600 includes a frame and a cylinder or oil cylinder arranged on the frame, wherein the piston rod of the cylinder or oil cylinder is placed in the front material guiding cavity 400, and is used to push the product from the front material guiding cavity 400 through the transition cavity 110 into the furnace.

[0055] Please continue to refer to Figure 2 The material guide assembly also includes a feeding assembly 800 for feeding the product into the front material guide cavity 400. Specifically, the feeding assembly 800 includes a front displacement chamber 810 for gas replacement, and the front displacement chamber 810 is connected to the front material guide cavity 400 through a front intermediate gate 820, wherein the front displacement chamber 810 is also provided with an entrance gate 830, wherein the front intermediate gate 820 and the entrance gate 830 are arranged on two adjacent sides of the front displacement chamber 810, that is, the two are arranged at a vertical angle. A feeding transverse pusher 840 is provided on the side of the front displacement chamber 810 opposite to the front intermediate gate 820. When working, the front intermediate gate 820 is closed and the entrance gate 830 is opened, so that the product enters the front displacement chamber 810. A vacuum pumping device (the existing vacuum pumping device can be used) is used to extract the air in the front displacement chamber 810. After the air is extracted, nitrogen is filled into the front displacement chamber 810 through a nitrogen filling device (the existing nitrogen filling device can be used) so that the pressure in the front guide cavity 400 and the front displacement chamber 810 is balanced. Thereafter, the front intermediate gate 820 is opened, and the product is pushed from the front intermediate gate 820 into the front guide cavity 400 under the pushing action of the feeding transverse pusher 840. The feeding transverse pusher 840 can also be an oil cylinder or a gas cylinder, and its piston cylinder is placed in the front displacement chamber 810 to push the product into the front guide cavity 400.

[0056] Please refer again Figure 2 A front processing window 850 is provided on the top surface of the front material guiding cavity 400, and a front viewing window 860 is provided on the top side of the front material guiding cavity 400, through which the situation inside the front material guiding cavity 400 can be observed.

[0057] It should be noted that the structures of the aforementioned pre-processing door 200, post-processing door 300, front intermediate gate 820 and entrance gate 830 can be the same. The structure of the door will be specifically described below taking the pre-processing door 200 as an example.

[0058] like Figure 3 and Figure 4As shown, the processing door includes a door body 210, a first door panel opening 211 arranged on the door body 210, a gate plate 220 slidingly connected to the door body 210, and a first driving mechanism 230 driving the gate plate 220 to move to open or close the first door panel opening 211; the gate plate 220 also includes a second door panel opening 212 arranged opposite to the first door panel opening 211, one of the first door panel opening 211 and the second door panel opening 212 is connected to the furnace, and the other is connected to the front material guide cavity 400.

[0059] Specifically, Figure 5 and Figure 6 As shown, the first driving mechanism 230 includes a power assembly 231 and a lifting plate 232 that is transmission-connected to the power assembly 231; the lifting plate 232 is slidably connected to the door body 210, and a limit block 233 is provided between the two. The limit block 233 is movably connected to the door body 210 and the lifting plate 232, respectively, and the limit block 233 is connected to the side of the gate plate 220 away from the first door plate opening 211, so that the gate plate 220 opens or closes the first door plate opening 211. When working, the power assembly 231 drives the lifting plate 232 to perform a vertical lifting motion relative to the door body 210. During the lifting motion, the lifting plate 232 can drive the gate plate 220 to perform a lateral motion toward or away from the first door plate opening 211 under the action of the limit block 233, thereby realizing the opening or closing of the first door plate opening 211.

[0060] In some embodiments, please continue to refer to Figure 6 As shown, a guide hole 2331 is provided on the limit block 233, and a roller bearing 234 is connected between the door body 210 and the limit block 233; the extension direction of the guide hole 2331 is set at an angle with the plate surface of the gate plate 220. The advantage of this setting is that the gate plate 220 is connected to the lifting plate 232. On the one hand, the gate plate 220 can be driven by the power component 231 to perform vertical lifting movement relative to the door body 210. In this process, under the guidance of the guide hole 2331, the limit block 233 can drive the gate plate 220 to perform lateral movement facing the base plate 240, so that the gate plate 220 can perform both lifting and lateral movement, so that the gate plate 220 can close the first door plate opening 211 while also achieving the sealing of the two.

[0061] Specifically, Figure 6 As shown, the door body 210 is provided with a guide rail 213, and the lifting plate 232 is provided with a slide groove matched with the guide rail 213. The roller bearing 234 is connected between the guide rail 213 and the limit block 233.

[0062] In this embodiment, the power assembly 231 may have the following structural forms.

[0063] In one embodiment, Figure 7 As shown, the power assembly 231 includes a telescopic element 2311 , an output end of the telescopic element 2311 is connected to the lifting plate 232 , and the telescopic element 2311 is installed on the door body 210 .

[0064] Specifically, Figure 7 As shown, the telescopic element 2311 can be a cylinder, the cylinder body of which is installed outside the door body 210, wherein the piston rod of the cylinder is connected to a connecting plate 2312, the connecting plate 2312 is connected to two guide rods 2313, the two guide rods 2313 are rotatably connected to the door body 210, and the ends placed inside the door body 210 are connected to the lifting plate 232. When working, the piston rod of the cylinder extends or retracts, driving the lifting plate 232 to rise or fall, thereby opening or closing the first door panel opening 211.

[0065] In another embodiment, Figure 8 As shown, the power assembly 231 includes a first rotating element 2314, a first lead screw 2315 drivingly connected to the first rotating element 2314, and a first nut 2316 threadedly connected to the first lead screw 2315 and moving along the axial direction thereof, the first lead screw 2315 is rotatably connected to the door body 210, and the lifting plate 232 is connected to the first nut 2316. Among them, the first rotating element 2314 is a first rotating handle provided at the driving end of the first lead screw 2315. When working, the first rotating handle is rotated, the first lead screw 2315 rotates to drive the first nut 2316 to move, and then drives the lifting plate 232 to rise or fall, so as to open or close the first door panel opening 211.

[0066] like Figure 5 As shown, the door body 210 includes a base plate 240 , and the first door plate opening 211 is arranged on the base plate 240 ; a sealing component is arranged between the gate plate 220 and the base plate 240 to ensure that the gate plate 220 can tightly close the first door plate opening 211 .

[0067] In some embodiments, Fig. 9 and Fig.10 As shown, the sealing assembly includes a sealing plate 221 and a pressure plate 222. The sealing plate 221 is arranged between the gate plate 220 and the pressure plate 222. A boss is provided on the side of the sealing plate 221 away from the gate plate 220, and an opening for passing the boss is provided on the pressure plate 222. The boss passes through the opening to tightly abut against the base plate 240.

[0068] In this embodiment, the working principle of the processing gate is:

[0069] Taking the first rotating handle as an example of the first rotating element 2314 , it should be noted that when the gate plate 220 is in an open state, a certain gap is left between the sealing plate 221 and the base plate 240 .

[0070] During operation, the first rotating handle is rotated to drive the lifting plate 232 to descend. During this process, since the limit block 233 is provided with a guide hole 2331, and the extension direction of the guide hole 2331 is set at an angle with the plate surface of the gate plate 220, the gate plate 220 will drive the gate plate 220 to move horizontally towards the base plate 240 during the process of vertical downward movement, so that the gate plate 220 closes the first door plate opening 211 while also achieving sealing between the two; conversely, the first door plate opening 211 is opened.

[0071] In this embodiment, if Fig.11 As shown, the material guiding assembly also includes a discharging assembly 900 for pushing the product out of the rear material guiding cavity 500. Specifically, the discharging assembly 900 includes a rear displacement chamber 910, which is connected to the rear material guiding cavity 500 through a rear intermediate gate 920, wherein the rear displacement chamber 910 is also provided with an outlet gate 930, wherein the rear intermediate gate 920 and the outlet gate 930 are arranged opposite to each other. A discharging horizontal pusher 940 is provided on the side of the rear material guiding cavity 500 opposite to the rear intermediate gate 920. When working, the rear intermediate gate 920 is closed, the inlet gate 830 is closed, and a vacuum device (the existing vacuum device can be used) is used to extract the air in the rear displacement chamber 910. After the air is extracted, nitrogen is filled into the rear displacement chamber 910 through a nitrogen filling device (the existing nitrogen filling device can be used) to balance the pressure in the rear material guiding cavity 500 and the rear displacement chamber 910. Thereafter, the rear intermediate gate 920 is opened, and the product is pushed from the rear material guiding cavity 500 into the rear displacement chamber 910 under the pushing action of the discharging horizontal pusher 940, and finally sent out from the outlet gate 930. Among them, the discharging horizontal pusher 940 can also be an oil cylinder or a gas cylinder, and its piston cylinder is placed in the rear material guiding cavity 500 to push the product into the rear displacement chamber 910.

[0072] It should be noted that the structural form of the aforementioned rear intermediate gate 920 and the exit gate 930 are the same as the specific structure and connection method of the aforementioned front processing door 200, which will not be repeated here.

[0073] In some embodiments, Figure 12 to Figure 14 As shown, the lead-away mechanism 700 includes a second rotating element 710, a second lead screw 720 drivingly connected to the second rotating element 710, and a second screw nut 730 threadedly connected to the second lead screw 720 and moving axially along the second lead screw 720; a carrier plate 740 is provided on the second screw nut 730, and the carrier plate 740 is located in the rear material guiding cavity 500 and is used to receive the sintered product. Among them, the second rotating element 710 is a second rotating handle provided at the driving end of the second lead screw 720.

[0074] During operation, the second rotating handle is rotated, and the second screw 720 rotates to drive the second nut 730 to move, thereby driving the carrier plate 740 to move closer to or away from the discharge port of the furnace body 100, so that the product falls onto the carrier plate 740 and is delivered to the rear guide cavity 500.

[0075] In this embodiment, if Fig.12 and Figure 3 As shown, the lead-away mechanism 700 includes a sealed lead-away cavity 750 , the second lead screw 720 is rotatably connected to the lead-away cavity 750 , and the second rotating handle is disposed at the end of the second lead screw 720 located outside the lead-away cavity 750 .

[0076] Specifically, the connection between the second lead screw 720 and the lead-away cavity 750 is achieved through a bearing seat, a bearing, etc. to achieve rotational connection between the two.

[0077] In this embodiment, if Fig.12 and Fig.13 As shown, the deflection mechanism 700 also includes a detection component 760 for detecting the moving distance of the carrier plate 740. The detection component 760 includes a detection cylinder 761 and a detection shaft 762. The detection cylinder 761 is installed on the deflection cavity 750. One end of the detection shaft 762 is connected to the piston rod of the detection cylinder 761, and the other end passes through the deflection cavity 750 and is placed in the rear material guide cavity 500.

[0078] It should be noted that if there is no mechanical failure outside the sintering furnace 10, that is, it is in a normal working state, the front processing door 200 and the rear processing door 300 remain in an open state; once a mechanical failure occurs, since the product may be located at the first door plate opening 211 of the rear processing door 300, affecting its closing, at this time, it is necessary to start the guide mechanism 700 to guide the product out of the first door plate opening 211, and then close the rear processing door 300. After the front processing door 200 and the rear processing door 300 are closed, the components other than the processing doors can be repaired.

[0079] This embodiment also provides a nickel electrode atmosphere tunnel furnace, such as Fig.15 As shown, the nickel electrode atmosphere tunnel furnace includes: a conveying mechanism, a debinding furnace 20 and the above-mentioned sintering furnace 10; the conveying mechanism is used to convey the product into the debinding furnace 20, and then convey it to the front guide cavity 400 from the debinding furnace 20.

[0080] Specifically, Fig.16 Shown is the working principle diagram of the nickel electrode atmosphere tunnel furnace.

[0081] The product is loaded from position ①, and is transported along position ②③ to position ④, that is, it reaches the debinding furnace 20. Then, it comes out of the debinding furnace 20 and is transported through position ⑤⑥⑦ to position ⑧, that is, it reaches the sintering furnace 10. Then, it comes out of the sintering furnace 10 and is transported through position ⑨⑩ to position ⑨⑩. Complete the cutting action.

[0082] In this embodiment, the debinding furnace 20 can adopt the debinding furnace 20 in the prior art, and its specific structure and working principle are not repeated here; in addition, the conveying mechanism can be a rotary roller or a conveyor belt, as long as it can meet the requirements of product conveying, it is not repeated here.

[0083] It should be noted that the products shown in the drawings in this embodiment are plate-shaped products, wherein the plate-shaped products are arranged sequentially and move forward sequentially during the entire movement process.

[0084] Specifically, taking a plate-shaped product as an example, the entire sintering process of the plate-shaped product is:

[0085] The plate-like products are sequentially transported to the debinding furnace 20 by the conveying mechanism, and then transported out of the debinding furnace 20 . The transported products sequentially enter the front replacement chamber 810 through the entrance gate 830 .

[0086] Under the pushing action of the feeding horizontal pusher 840, the product is pushed into the front material guiding cavity 400 through the front intermediate gate 820, and then under the action of the main pushing mechanism 600, the plate-like product in the front material guiding cavity 400 is sent into the furnace. When the furnace is full of plate-like products, at this time, if the main pushing mechanism 600 sends the next plate-like product into the furnace, a sintered plate-like product will be sent out of the furnace; the plate-like product sent out of the furnace enters the rear material guiding cavity 500 through the rear processing door 300, and under the pushing action of the discharging horizontal pusher 940, the plate-like product is pushed from the rear material guiding cavity 500 through the rear intermediate gate 920 into the rear replacement chamber 910, and finally sent out from the outlet gate 930.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sintering furnace, characterized in that: include: A furnace body (100) having a furnace chamber, wherein opposite ends of the furnace body (100) are open, and a processing door and a material guide assembly (900) are provided at the open end, wherein the processing door comprises a front processing door (200) and a rear processing door (300), and the material guide assembly (900) comprises a front material guide cavity (400), a rear material guide cavity (500), a main pushing mechanism (600) and a guide-away mechanism (700); The front processing door (200) is connected between the furnace body (100) and the front material guiding cavity (400), and the main pushing mechanism (600) is located on one side of the front material guiding cavity (400) and is used to send the product in the front material guiding cavity (400) into the furnace; The post-processing door (300) is connected between the furnace body (100) and the post-material guiding cavity (500); the guide mechanism (700) is located on one side of the post-material guiding cavity (500) and is used to move the product in the furnace to the post-material guiding cavity (500); It also includes a feeding assembly (800), and the feeding assembly (800) includes a front displacement chamber (810) for gas displacement, and the front displacement chamber (810) is connected to the front material guide cavity (400) through a front intermediate gate (820); The front displacement chamber (810) is further provided with an entrance gate (830), and the front intermediate gate (820) and the entrance gate (830) are arranged on two adjacent sides of the front displacement chamber (810), that is, the front intermediate gate (820) and the entrance gate (830) are arranged at a vertical angle; A material inlet transverse pusher (840) is provided on a side of the front displacement chamber (810) opposite to the front intermediate gate (820).

2. The sintering furnace according to claim 1, characterized in that: The processing door comprises a door body (210), a first door panel opening (211) arranged on the door body (210), a gate plate (220) slidably connected to the door body (210), and a first driving mechanism (230) for driving the gate plate (220) to move so as to open or close the first door panel opening (211); The gate plate (220) further comprises a second door plate opening (212) arranged opposite to the first door plate opening (211), one of the first door plate opening (211) and the second door plate opening (212) being connected to the furnace, and the other of the first door plate opening (211) and the second door plate opening (212) being connected to the front material guiding cavity (400) or the rear material guiding cavity (500).

3. The sintering furnace according to claim 2, characterized in that: The first driving mechanism (230) comprises a power assembly (231) and a lifting plate (232) drivingly connected to the power assembly (231); The lifting plate (232) is slidably connected to the door body (210), and a limit block (233) is provided between the two. The limit block (233) is movably connected to the door body (210) and the lifting plate (232), respectively, and the limit block (233) is connected to a side of the gate plate (220) away from the first door plate opening (211), so that the gate plate (220) opens or closes the first door plate opening (211).

4. The sintering furnace according to claim 3, characterized in that: The limiting block (233) is provided with a guide hole (2331), and a roller bearing (234) is connected between the door body (210) and the limiting block (233); The extending direction of the guide hole (2331) is arranged at an angle with the plate surface of the gate plate (220).

5. The sintering furnace according to claim 2, characterized in that: The door body (210) comprises a base plate (240), and the first door panel opening (211) is arranged on the base plate (240); A sealing component is provided between the gate plate (220) and the base plate (240).

6. The sintering furnace according to claim 5, characterized in that: The sealing assembly comprises a sealing plate (221) and a pressure plate (222), wherein the sealing plate (221) is arranged between the gate plate (220) and the pressure plate (222); A boss is provided on the side of the sealing plate (221) facing away from the gate plate (220), and an opening for penetrating the boss is provided on the pressing plate (222). The boss passes through the opening to tightly abut against the base plate (240).

7. The sintering furnace according to claim 3, characterized in that: The power assembly (231) comprises a telescopic element (2311), the output end of the telescopic element (2311) is connected to the lifting plate (232), and the telescopic element (2311) is installed on the door body (210); Alternatively, the power assembly (231) includes a first rotating element (2314), a first lead screw (2315) drivingly connected to the first rotating element (2314), and a first nut (2316) threadedly connected to the first lead screw (2315) and moving axially along the first lead screw (2315), the first lead screw (2315) being rotationally connected to the door body (210), and the lifting plate (232) being connected to the first nut (2316).

8. The sintering furnace according to any one of claims 1 to 7, characterized in that: The lead-away mechanism (700) comprises a second rotating element (710), a second lead screw (720) drivingly connected to the second rotating element (710), and a second nut (730) threadedly connected to the second lead screw (720) and axially moving along the second lead screw (720); A carrier plate (740) is provided on the second nut (730); the carrier plate (740) is located in the rear material guiding cavity (500) and is used to receive the sintered product.

9. The sintering furnace according to claim 8, characterized in that: The second rotating element (710) comprises a rotating handle; The lead-away mechanism (700) comprises a sealed lead-away cavity (750), the second lead screw (720) is rotatably connected to the lead-away cavity (750), and the rotating handle is arranged at the end of the second lead screw (720) located outside the lead-away cavity (750).

10. A nickel electrode atmosphere tunnel furnace, characterized in that: include: A conveying mechanism, a debinding furnace (20) and a sintering furnace as claimed in any one of claims 1 to 9; The conveying mechanism is used to convey the product into the debinding furnace (20), and then convey the product from the debinding furnace (20) to the front guide cavity (400).

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