A vertical tube furnace device and a method for feeding and discharging a vertical tube furnace

Abstract

The application provides a vertical tubular furnace device and a vertical tubular furnace feeding and discharging method, which comprises a base, a furnace body, a furnace tube fixing structure, a furnace tube structure, a furnace tube box, a feeding device and a discharging device; the furnace body is fixed on the base, the furnace tube structure is fixed on the first side of the furnace body through the furnace tube fixing structure, the furnace tube box is arranged on the first side of the furnace body, the furnace tube structure passes through the furnace tube box, the feeding device is arranged at the feeding end of the furnace tube structure away from the base, and the discharging device is arranged at the discharging end of the furnace tube structure close to the base; an electric actuator is connected with the feeding device and the discharging device and is used for controlling the feeding device and the discharging device, so that the feeding end and the discharging end of the furnace tube structure are opened and closed, and the automatic feeding of the material and the automatic discharging of the material after the heating of the material are realized. In the application, the baffle and the electric actuator are arranged, the baffle can automatically move according to the program setting, and the automatic feeding and discharging of the material are realized.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of thermal equipment, in particular to a vertical tubular furnace device and a vertical tubular furnace feeding and discharging method. BACKGROUND

[0002] The vertical tubular furnace is a conventional experimental research equipment, mainly used for high-temperature sintering, metal annealing, atmosphere reduction and quality detection, and can also be used for small-batch production of enterprises, and is widely used in the fields of ceramics, quartz, chemical industry, electronics, metallurgy, lithium battery positive and negative electrode materials, abrasive tools, new material development, machinery, refractory materials, building materials, special materials and the like. The furnace structure is simple, safe and reliable, easy to operate, high in temperature control precision, good in heat preservation effect, wide in temperature range, and can be selected with atmosphere and the like.

[0003] In the prior art, during the use of the vertical tubular furnace, an operator needs to manually open the flange at the end of the furnace tube, put the reaction material to be heated into the furnace tube, and then manually close the flange cover. After the material is heated, the operator needs to manually open the flange at the end of the furnace tube to take out or unload the material. Therefore, the material must be cooled before unloading after heating, otherwise the operator is easy to be scalded during manual operation. In addition, for the material with subsequent heating process, the cooling and reheating will inevitably cause energy loss and may affect the quality of the material. SUMMARY

[0004] The embodiment of the present application provides a vertical tubular furnace device and a vertical tubular furnace feeding and discharging method to solve the problem that the existing feeding and discharging must be manually operated and affects the quality of the material.

[0005] In order to solve the above technical problems, the present application is implemented as follows:

[0006] In a first aspect, the embodiment of the present application provides a vertical tubular furnace device, comprising:

[0007] a base, a furnace body, a furnace tube fixing structure, a furnace tube structure, a furnace tube box, a feeding device and a discharging device;

[0008] The furnace body is fixed on the base, the furnace tube structure is fixed on the first side of the furnace body through the furnace tube fixing structure, the furnace tube box is arranged on the first side of the furnace body, the furnace tube structure passes through the furnace tube box, the feeding device is arranged at the feeding end of the furnace tube structure away from the base, and the discharging device is arranged at the discharging end of the furnace tube structure close to the base.

[0009] An electric actuator is connected with the feeding device and the discharging device, and is used for controlling the feeding device and the discharging device to open and close the feeding end and the discharging end of the furnace tube structure, so as to realize automatic feeding of the material and automatic discharging of the material after the material is heated.

[0010] Optionally, the furnace tube structure comprises a first furnace tube, a second furnace tube and a third furnace tube connected in sequence, the first furnace tube and the third furnace tube have a larger diameter than the second furnace tube, and the second furnace tube is a straight tube.

[0011] Optionally, the feeding device is arranged on the furnace tube structure and comprises:

[0012] a feeding port, a feeding actuator, a feeding pull rod and a feeding baffle;

[0013] The feeding port is arranged at the top of the furnace tube structure, the feeding actuator is connected with the electric actuator and is arranged at the upper end of the feeding pull rod;

[0014] The feeding baffle is arranged at the lower end of the feeding pull rod;

[0015] The feeding actuator drives the feeding pull rod to move up and down under the control of the electric actuator, and the feeding baffle is switched between the state of shielding the interface between the first furnace tube and the second furnace tube and the state of not shielding the interface between the first furnace tube and the second furnace tube under the driving of the feeding pull rod.

[0016] Optionally, the top of the feeding baffle is a conical structure, the bottom is a cylindrical structure, a through hole is arranged on the feeding baffle, and the diameter of the through hole is larger than the average diameter of the material.

[0017] Optionally, the furnace tube structure further comprises:

[0018] The discharging device is arranged on the furnace tube structure and comprises:

[0019] a discharging port, a discharging actuator, a discharging pull rod and a discharging baffle;

[0020] The discharging port is arranged at the bottom of the furnace tube structure, the discharging actuator is connected with the electric actuator and is arranged at the lower end of the discharging pull rod;

[0021] The discharging baffle is arranged at the upper end of the discharging pull rod;

[0022] The discharge execution mechanism drives the discharge pull rod to move up and down under the control of the electric execution mechanism, and the discharge baffle is switched between the state of shielding the interface between the second furnace tube and the third furnace tube and the state of not shielding the interface between the second furnace tube and the third furnace tube under the driving of the discharge pull rod.

[0023] Optionally, the top of the discharge baffle is a conical structure, the bottom is a cylindrical structure, and a through hole is arranged on the discharge baffle.

[0024] Optionally, the furnace tube fixing structure comprises: a first fixing device and a second fixing device; the first fixing device is arranged on the upper part of the furnace body on the same side as the furnace tube structure; and the second fixing device is arranged on the lower part of the furnace body on the same side as the furnace tube structure.

[0025] Optionally, the first fixing device comprises: a support, a clamp and a gasket, the support is arranged on the furnace body, the clamp is connected with the support, the furnace tube structure is fixed on the furnace body through the clamp, and the gasket is arranged between the furnace tube structure and the clamp.

[0026] Optionally, the furnace tube structure further comprises: an upper flange and a lower flange, the upper flange is connected with the upper part of the first furnace tube, and the lower flange is connected with the lower part of the third furnace tube.

[0027] Optionally, the method further comprises:

[0028] An air inlet hole and an air outlet hole, the air inlet hole is arranged on the discharge device, and the air outlet hole is arranged on the feeding device, and is used for inputting and discharging a protective atmosphere.

[0029] In a second aspect, the embodiment of the present application provides a method for feeding and discharging a vertical tubular furnace, which applies the vertical tubular furnace device in any one of the first aspect, and comprises:

[0030] When feeding materials, the feeding device is controlled to open the feeding end of the furnace tube structure, so as to realize automatic feeding of the materials;

[0031] After feeding the materials, the feeding device is controlled to close the feeding end of the furnace tube structure, and the furnace tube box is started to heat;

[0032] When discharging materials, the discharge device is controlled to open the discharging end of the furnace tube structure, so as to realize automatic discharging of the materials after heating is completed;

[0033] After discharging the materials, the discharge device is controlled to close the discharging end of the furnace tube structure.

[0034] In the present application, by changing the furnace tube structure, adding the feeding and discharging baffle in the furnace tube structure, setting the electric actuator outside the furnace tube structure, making the feeding and discharging baffle automatically move position according to the program setting, realizing the opening and closing of the two ends of the furnace tube, and then realizing the automatic feeding of the material and the automatic discharging after the material heating is completed, the whole feeding, heating and discharging process of the material is completely controlled by the program automatically, without manual operation, the cold discharging and hot discharging of the device can be realized, avoiding the risk of scalding of the operator; At the same time, the whole device is always in a closed state, there is no risk of contacting with external gas, the material is always in a protective atmosphere, which ensures the quality and precision of the experiment of the material. BRIEF DESCRIPTION OF DRAWINGS

[0035] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the scope of the application. Moreover, like reference numerals designate like parts throughout the several views in the drawings. In the drawings:

[0036] Figure 1 is a general structure diagram of a vertical tubular furnace device provided by an embodiment of the present application;

[0037] Figure 2 is a detailed structure diagram of a vertical tubular furnace device provided by an embodiment of the present application;

[0038] Figure 3 is a flange detailed structure diagram of a vertical tubular furnace device provided by an embodiment of the present application;

[0039] Figure 4 is a structure diagram of a furnace tube fixing structure of a vertical tubular furnace device provided by an embodiment of the present application;

[0040] Figure 5 is a structure diagram of another furnace tube fixing structure of a vertical tubular furnace device provided by an embodiment of the present application;

[0041] Figure 6 is a structure diagram of a feeding and discharging baffle of a vertical tubular furnace device provided by an embodiment of the present application;

[0042] Figure 7 is a flow chart of a feeding and discharging method of a vertical tubular furnace provided by an embodiment of the present application. DETAILED DESCRIPTION

[0043] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0044] With reference to Figure 1 The embodiment of the present application provides a vertical tubular furnace device, which comprises:

[0045] The base 1, the furnace body 2, the furnace pipe fixing structure 3, the furnace pipe structure 4, the furnace pipe box 5, the feeding device 6 and the discharging device 7;

[0046] The furnace body 2 is fixed on the base 1, the furnace pipe structure 4 is fixed on the first side of the furnace body 2 through the furnace pipe fixing structure 3, the furnace pipe box 5 is arranged on the first side of the furnace body 2, the furnace pipe structure 4 passes through the furnace pipe box 5, the feeding device 6 is arranged at the feeding end of the furnace pipe structure 4 away from the base 1, and the discharging device 7 is arranged at the discharging end of the furnace pipe structure 4 close to the base 1.

[0047] The electric actuator 8 is connected with the feeding device 6 and the discharging device 7, and is used for controlling the feeding device 6 and the discharging device 7, so that the feeding end and the discharging end of the furnace pipe structure 4 are opened and closed, and automatic feeding of the material and automatic discharging of the material after heating are realized.

[0048] In the embodiment of the present application, the furnace pipe structure is changed, the feeding and discharging baffles are added in the furnace pipe structure, and the electric actuator is arranged outside the furnace pipe structure, so that the feeding and discharging baffles are automatically moved according to the program setting, the two ends of the furnace pipe are opened and closed, and then the automatic feeding of the material and the automatic discharging of the material after heating are realized. The whole feeding, heating and discharging process of the material are completely controlled by the program automatically, without manual operation. The cold discharging and hot discharging of the device can be realized, and the risk of scalding of the operator is avoided. Meanwhile, the whole device is always in a closed state, and there is no risk of contacting with external gas. The material is always in a protective atmosphere, and the quality and experimental precision of the material are ensured.

[0049] With reference to Figure 2 In the embodiment of the present application, optionally, the furnace pipe structure 4 comprises a first furnace pipe 41, a second furnace pipe 42 and a third furnace pipe 43 connected in sequence, the diameters of the first furnace pipe 41 and the third furnace pipe 43 are greater than that of the second furnace pipe 42, and the second furnace pipe 42 is a straight pipe.

[0050] In this embodiment of the invention, the furnace tube adopts a special-shaped tube structure. The diameter of the straight section of the second furnace tube is D, and the diameter of the special-shaped tube of the first furnace tube 41 and the third furnace tube 43 is D1, wherein D1≥D+50mm, to ensure that when materials are fed in and out, after the feed and discharge baffles are moved to the new position, the materials can flow down from the channel between the baffle and the special-shaped tube.

[0051] In this embodiment of the invention, optionally, the furnace tube structure 4 further includes an upper flange 44 and a lower flange 45. The upper flange 44 is connected to the upper part of the first furnace tube 41, and the lower flange 45 is connected to the lower part of the third furnace tube 43. The upper flange 44 and the lower flange 45 are made of stainless steel. When the first furnace tube 41, the second furnace tube 42, and the third furnace tube 43 are made of stainless steel, the furnace tube structure 4 is welded to the upper flange 44 and the lower flange 45. When the first furnace tube 41, the second furnace tube 42, and the third furnace tube 43 are made of quartz or corundum, the furnace tube structure 4 is sealed to the upper flange 44 and the lower flange 45 using a sealing ring.

[0052] Please refer to Figure 3 ,for Figure 2 In the detailed diagram of part A in this embodiment of the invention, optionally, the furnace tube structure 4 further includes a sealing ring 46. When the first furnace tube 41, the second furnace tube 42 and the third furnace tube 43 are made of quartz or corundum, the furnace tube structure 4 is sealed with the upper flange 44 and the lower flange 45 by the sealing ring.

[0053] Please refer to Figure 2 In this embodiment of the invention, optionally, the furnace tube fixing structure 3 includes: a first fixing device 31 and a second fixing device 32; the first fixing device 31 is disposed on the upper part of the furnace body 2 on the same side as the furnace tube structure 4; the second fixing device 32 is disposed on the lower part of the furnace body 2 on the same side as the furnace tube structure 4; please refer to Figure 4 and Figure 5 The first fixing device 31 includes: a bracket 301, a clamp 302, and a washer 303. The bracket 301 is set on the furnace body, the clamp 302 is connected to the bracket 301, the furnace tube structure 4 is fixed to the furnace body 2 by the clamp 301, and the washer 303 is provided between the furnace tube structure 4 and the clamp 302. The furnace tube fixing structure 3 ensures that the furnace tube structure 4 is firmly fixed, and also facilitates the disassembly of the furnace tube structure 4. The washer 303 can protect the furnace tube structure made of glass and corundum from being broken by impact.

[0054] In this embodiment of the invention, optionally, the furnace tube box 5 is heated by electric heating or microwave heating.

[0055] Please refer to Figure 2 In this embodiment of the invention, optionally, the feeding device 6 is disposed on the furnace tube structure 4, and includes:

[0056] The feeding port 601, the feeding actuator 602, the feeding pull rod 603 and the feeding baffle 604;

[0057] The feeding port 601 is arranged at the top of the furnace tube structure 4, the feeding actuator 602 is connected with the electric actuator 8 and arranged at the upper end of the feeding pull rod 603;

[0058] The feeding baffle 604 is arranged at the lower end of the feeding pull rod 603;

[0059] The feeding actuator 602 drives the feeding pull rod 603 to move up and down under the control of the electric actuator 8, and the feeding baffle 604 is switched between the state of shielding the interface between the first furnace tube 41 and the second furnace tube 42 and the state of not shielding the interface between the first furnace tube 41 and the second furnace tube 42 under the driving of the feeding pull rod 603.

[0060] Referring to Figure 2 Optionally, the feeding device 6 further comprises a first flange cover 605 for connecting with the upper flange 44 in the embodiment of the present application.

[0061] Referring to Figure 2 Optionally, the feeding device 6 further comprises an air outlet 606 arranged on the feeding device 6 for discharging the protective atmosphere in the embodiment of the present application.

[0062] Referring to Figure 6 Optionally, the top of the feeding baffle 604 is a conical structure, the bottom is a cylindrical structure, a through hole is arranged on the feeding baffle 604, the conical angle of the conical structure is not greater than 120°, and the diameter d of the through hole is greater than 5 times the average particle size of the material, the conical angle is beneficial to faster sliding of the material and does not cause accumulation, and the through hole on the feeding baffle 604 is beneficial to rapid discharge of the protective atmosphere and waste gas and reduces the material taken away by the protective atmosphere.

[0063] Referring to Figure 2 Optionally, the embodiment of the present application further comprises a discharging device 7 arranged on the furnace tube structure 4, which comprises:

[0064] The discharging port 701, the discharging actuator 702, the discharging pull rod 703 and the discharging baffle 704;

[0065] The discharging port 701 is arranged at the bottom of the furnace tube structure 4, the discharging actuator 702 is connected with the electric actuator 8 and arranged at the lower end of the discharging pull rod 703;

[0066] The discharging baffle 704 is arranged at the upper end of the discharging pull rod 703;

[0067] The discharge execution mechanism drives the discharge pull rod 703 to move up and down under the control of the electric execution mechanism 8, and the discharge baffle 704 is switched between the state of shielding the interface between the second furnace tube 42 and the third furnace tube 43 and the state of not shielding the interface between the second furnace tube 42 and the third furnace tube 43 under the driving of the discharge pull rod 703.

[0068] Please refer to Figure 2 In the embodiment of the application, optionally, the discharge device 7 further comprises a second flange cover 705 for connecting with the lower flange 45.

[0069] Please refer to Figure 2 In the embodiment of the application, optionally, the discharge device 7 further comprises an air inlet hole 706 arranged on the discharge device 7 for inputting a protective atmosphere.

[0070] Please refer to Figure 6 In the embodiment of the application, optionally, the top of the discharge baffle 704 is a conical structure, the bottom is a cylindrical structure, and a through hole is arranged on the discharge baffle 704, the diameter d of the through hole is not greater than the average diameter of the feed, and the conical angle is beneficial to faster sliding of the material and does not cause accumulation, the hole on the discharge baffle 704 is beneficial to the input of the protective atmosphere and prevents the material particles from falling from the through hole.

[0071] Please refer to Figure 7 The embodiment of the application provides a vertical tubular furnace feeding and discharging method. Figures 1-6 The vertical tubular furnace device comprises:

[0072] Step 71: when feeding, the feeding device is controlled to open the feeding end of the furnace tube structure, so as to realize automatic feeding of the material;

[0073] Step 72: after feeding, the feeding device is controlled to close the feeding end of the furnace tube structure, and the furnace tube box is started to heat;

[0074] Step 73: when discharging, the discharge device is controlled to open the discharging end of the furnace tube structure, so as to realize automatic discharging of the material after heating is completed;

[0075] Step 74: after discharging, the discharge device is controlled to close the discharging end of the furnace tube structure.

[0076] In the embodiment of the application, optionally, in use, the feeding baffle and the discharging baffle are both in the initial position in the initial state, when feeding, the feeding device is started, the feeding baffle is moved upward by a distance of L / 2 through the pull rod, that is, to a position of half of the first furnace tube, and the material is fed through the feeding port;

[0077] After the material is fed, the feeding device is started, the feeding stopper is moved downward by the feeding pull rod to the initial position by L / 2, the furnace tube box starts to heat, the protective atmosphere enters from the air inlet hole, and is discharged from the air outlet hole after passing through the material layer, and after the heating is completed, the protective atmosphere is stopped;

[0078] When the material is discharged, the discharging device is started, the stopper is moved downward by the discharging pull rod by a distance of L / 2, i.e., half of the third furnace tube, the material falls into the discharging device from the furnace tube, and is discharged through the discharging port;

[0079] After the material is discharged, the discharging device is started, the stopper is moved upward by the pull rod by a distance of L / 2 to the initial position.

[0080] In the embodiment of the present application, by changing the structure of the furnace tube, the feeding and discharging stoppers are added in the furnace tube structure, and the electric actuator is arranged outside the furnace tube structure, so that the feeding and discharging stoppers are automatically moved according to the program setting, the openings at both ends of the furnace tube are opened and closed, and then the automatic feeding of the material and the automatic discharging of the material after the heating of the material is completed are realized, the whole feeding, heating and discharging process of the material is completely controlled by the program, manual operation is not required, cold discharging and hot discharging of the device can be realized, and the risk of scalding of the operator is avoided; at the same time, the whole device is always in a closed state, there is no risk of contacting with external gas, the material is always in a protective atmosphere, and the quality of the material and the precision of the experiment are ensured.

[0081] It should be noted that in this text, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0082] The above-mentioned serial numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0083] The above-mentioned only is the preferred embodiment of the present application, it should be pointed out, for ordinary skilled in the art, without departing from the principle of the present application, can make a number of improvements and refinements, these improvements and refinements should be regarded as the protection scope of the present application.

Claims

1. A vertical tube furnace device, characterized in that, include: Base, furnace body, furnace tube fixing structure, furnace tube structure, furnace tube box, feeding device and discharging device; The furnace body is fixed on the base, the furnace tube structure is fixed on the first side of the furnace body by the furnace tube fixing structure, the furnace tube box is set on the first side of the furnace body, the furnace tube structure passes through the furnace tube box, the feeding device is set at the feeding end of the furnace tube structure away from the base, and the discharging device is set at the discharging end of the furnace tube structure near the base. An electric actuator is connected to the feeding device and the discharging device to control the feeding device and the discharging device, thereby opening and closing the feeding end and the discharging end of the furnace tube structure to achieve automatic feeding of materials and automatic discharging of materials after heating. The furnace tube structure includes a first furnace tube, a second furnace tube, and a third furnace tube connected in sequence. The diameters of the first furnace tube and the third furnace tube are larger than those of the second furnace tube, and the second furnace tube is a straight tube. The feeding device is mounted on the furnace tube structure and includes: Feed inlet, feed actuator, feed rod, and feed baffle; The feed inlet is located at the top of the furnace tube structure, and the feed actuator is connected to the electric actuator and located at the upper end of the feed pull rod; The feed baffle is located at the lower end of the feed rod; The discharge device is mounted on the furnace tube structure and includes: The discharge port, discharge actuator, discharge rod, and discharge baffle; The discharge port is located at the bottom of the furnace tube structure, and the discharge actuator is connected to the electric actuator and located at the lower end of the discharge pull rod; The discharge baffle is located at the upper end of the discharge pull rod; The top of the feed baffle is a conical structure and the bottom is a cylindrical structure. The feed baffle is provided with a through-hole. The cone angle of the conical structure is not greater than 120° and the diameter of the hole is greater than 5 times the average particle size of the material. The discharge baffle is provided with a through-hole. The diameter of the hole is not greater than the average diameter of the feed material. It also includes an air inlet and an air outlet, wherein the air inlet is disposed on the discharge device and the air outlet is disposed on the feed device, for inputting and discharging a protective atmosphere.

2. The vertical tube furnace apparatus according to claim 1, characterized in that, Under the control of the electric actuator, the feeding actuator drives the feeding rod to move up and down. The feeding baffle, driven by the feeding rod, switches between blocking the interface between the first furnace tube and the second furnace tube and not blocking the interface between the first furnace tube and the second furnace tube.

3. The vertical tube furnace apparatus according to claim 1, characterized in that, Under the control of the electric actuator, the discharge actuator drives the discharge rod to move up and down. The discharge baffle, driven by the discharge rod, switches between blocking the interface between the second furnace tube and the third furnace tube and not blocking the interface between the second furnace tube and the third furnace tube.

4. The vertical tube furnace apparatus according to claim 1, characterized in that, The top of the discharge baffle is conical, and the bottom is cylindrical.

5. The vertical tubular furnace apparatus according to claim 1, characterized in that, The furnace tube fixing structure includes: a first fixing device and a second fixing device; the first fixing device is disposed on the upper part of the furnace body on the same side as the furnace tube structure; the second fixing device is disposed on the lower part of the furnace body on the same side as the furnace tube structure.

6. The vertical tube furnace apparatus according to claim 5, characterized in that, The first fixing device includes a bracket, a clamp, and a washer. The bracket is mounted on the furnace body, the clamp is connected to the bracket, the furnace tube structure is fixed to the furnace body by the clamp, and a washer is provided between the furnace tube structure and the clamp.

7. The vertical tube furnace apparatus according to claim 1, characterized in that, The furnace tube structure also includes an upper flange and a lower flange, wherein the upper flange is connected to the upper part of the first furnace tube and the lower flange is connected to the lower part of the third furnace tube.

8. A method for feeding and discharging materials into a vertical tubular furnace, characterized in that, The vertical tube furnace apparatus according to any one of claims 1-7 comprises: When feeding materials, the feeding device is controlled to open the feeding end of the furnace tube structure, so as to realize automatic feeding of materials; After the material is fed in, the feeding device is controlled to close the feeding end of the furnace tube structure and start the furnace tube box for heating; When discharging material, the discharge device is controlled to open the discharge end of the furnace tube structure, so as to achieve automatic discharge of material after heating is completed; After the material is discharged, the discharge device is controlled to close the discharge end of the furnace tube structure.

Images