Nitrogen-introduced anti-oxidation high-temperature resin electromagnetic calcination rotary kiln

Abstract

The utility model discloses a nitrogen introduction anti-oxidation high-temperature resin electromagnetic calcination rotary kiln which comprises a rotary kiln body, a vacuum feeding machine is fixedly installed on the left side of the top of the rotary kiln body, a butterfly valve is fixedly installed at the communication position between the rotary kiln body and the vacuum feeding machine, and a base is arranged at the bottom of the rotary kiln body. A front riding wheel assembly and a rear riding wheel assembly are fixedly installed on the base and are both in transmission connection with the rotary kiln, a pneumatic sealing door is installed on the right side of the rotary kiln, electromagnetic heating rings which are arranged at equal intervals can be fixedly installed on the base, and the rotary kiln is sleeved with the electromagnetic heating rings. The electromagnetic calcining device has the advantages of high heating speed, uniformity in heating, accuracy in temperature control and the like. Materials in the kiln body are heated through electromagnetic induction, the problem of local overheating or insufficient heating can be effectively avoided, the calcination efficiency and the product quality are improved, and meanwhile energy consumption and environmental pollution are reduced.

Description

Technical Field

[0001] This utility model relates to the field of resin calcination, and more specifically, to a high-temperature electromagnetic calcination rotary kiln for resin with nitrogen-purged anti-oxidation properties. Background Technology

[0002] When resin is used as part of a composite material, calcination can remove organic matter from the resin, thereby obtaining inorganic materials with specific structures and properties. The high-temperature environment during calcination can promote crystallization transformation and increase the crystallinity of the material. For some inorganic-organic hybrid materials containing resin, the increased crystallinity of the inorganic phase after calcination improves the material's hardness, wear resistance, thermal stability, and other properties.

[0003] Currently, most resin calcination methods use fuel for calcination. The disadvantages of this method are high energy consumption, serious pollution, uneven heating of the resin during calcination, resulting in a low yield of finished resin products and affecting the calcination effect and product quality. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a nitrogen-purified high-temperature electromagnetic calcination rotary kiln for resin, thereby improving the resin calcination effect and product quality.

[0005] To address the technical problems mentioned above, this utility model adopts the following technical solution;

[0006] A nitrogen-flushing, oxidation-preventing high-temperature resin electromagnetic calcination rotary kiln includes a rotary kiln, a vacuum feeder fixedly installed on the top left side of the rotary kiln, a butterfly valve fixedly installed at the connection between the rotary kiln and the vacuum feeder, a base provided at the bottom of the rotary kiln, a front support roller assembly and a rear support roller assembly fixedly installed on the base, both of which are drive-connected to the rotary kiln, a pneumatic sealing door installed on the right side of the rotary kiln, and an electromagnetic heating coil arranged at equal intervals fixedly installed on the base. The electromagnetic heating coils are sleeved on the rotary kiln, and a nitrogen distribution pipe rotatably connected to the base is inserted through the rotary kiln. The left end of the nitrogen distribution pipe extends to the outside of the rotary kiln, and a servo motor is fixedly installed on the base. The output shaft of the servo motor is drive-connected to the rotary kiln via gears.

[0007] As a further description of the above technical solution:

[0008] The rotary kiln consists of a kiln head, a kiln body, and a kiln tail. The kiln head and kiln tail are rotatably connected to the left and right ends of the kiln body, respectively. The bottom of the vacuum feeder is fixedly connected to the kiln head, and the left side of the pneumatic sealing door is connected to the kiln tail.

[0009] As a further description of the above technical solution:

[0010] The pneumatic sealing door includes a cylinder fixedly installed on the base. The output end of the cylinder extends to the inner side of the kiln tail and is fixedly installed with a sealing plate. The sealing plate matches the right side port of the kiln body. The bottom of the kiln tail is integrally formed with a high-temperature discharge pipe.

[0011] As a further description of the above technical solution:

[0012] The kiln head is integrally formed with an exhaust pipe, and the nitrogen distribution pipe located inside the rotary kiln has evenly distributed distribution holes.

[0013] As a further description of the above technical solution:

[0014] Both the front support roller assembly and the rear support roller assembly include a bracket, on which two drive wheels and two limit wheels are rotatably mounted. The bottom of the kiln body is in contact with the two drive wheels and the two limit wheels.

[0015] As a further description of the above technical solution:

[0016] The kiln body is fixedly equipped with uniformly distributed wireless temperature sensors, and the inner wall of the kiln body is fixedly equipped with uniformly distributed stirring blades.

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] (1) Compared with traditional fuel heating methods, electromagnetic calcination has the advantages of fast heating speed, uniform heating and precise temperature control. By inducing the material in the kiln to heat itself through electromagnetic induction, it can effectively avoid the problems of local overheating or insufficient heating, improve calcination efficiency and product quality, and at the same time reduce energy consumption and environmental pollution.

[0019] (2) This scheme is specifically designed with a nitrogen-introducing device. Nitrogen is introduced into the kiln during the calcination process to create an inert atmosphere inside the kiln, effectively preventing the high-temperature resin from coming into contact with oxygen in the air and undergoing an oxidation reaction. This is crucial for the calcination process of some high-temperature resins that have strict requirements for oxygen content, and can significantly improve the performance and quality of the product and reduce the defect rate caused by oxidation.

[0020] (3) This scheme considers the recovery and utilization of waste heat generated during the calcination process, such as using high-temperature waste gas to preheat the materials to be calcined or to heat the media required for other process steps. Through the energy recovery system, multi-level utilization of energy is realized, further improving energy utilization efficiency, reducing production costs, and reducing thermal pollution to the environment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a front view structural diagram of the present utility model;

[0023] Figure 3 This is a frontal sectional view of the present invention.

[0024] Explanation of the labels in the diagram:

[0025] 1. Rotary kiln; 11. Kiln head; 111. Exhaust pipe; 12. Kiln body; 121. Wireless temperature sensor; 122. Agitator blade; 13. Kiln tail; 131. High-temperature discharge pipe; 2. Vacuum feeder; 3. Butterfly valve; 4. Front support roller assembly; 41. Bracket; 42. Drive wheel; 43. Limit wheel; 5. Rear support roller assembly; 6. Pneumatic sealing door; 61. Cylinder; 62. Sealing plate; 7. Electromagnetic heating coil; 8. Nitrogen distribution pipe; 9. Servo motor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0027] Please see Figure 1-3 In this utility model, a high-temperature electromagnetic calcination rotary kiln for nitrogen-purified anti-oxidation resin includes a rotary kiln 1. A vacuum feeder 2 is fixedly installed on the left side of the top of the rotary kiln 1. A butterfly valve 3 is fixedly installed at the connection between the rotary kiln 1 and the vacuum feeder 2. A base is provided at the bottom of the rotary kiln 1. A front support roller assembly 4 and a rear support roller assembly 5 are fixedly installed on the base. Both the front support roller assembly 4 and the rear support roller assembly 5 are connected to the rotary kiln 1 for transmission. A pneumatic sealing door 6 is installed on the right side of the rotary kiln 1. An electromagnetic heating coil 7 is fixedly installed on the base. The electromagnetic heating coil 7 is sleeved on the rotary kiln 1. A nitrogen gas distribution pipe 8 is inserted through the rotary kiln 1 and rotatedly connected to it. The left end of the nitrogen gas distribution pipe 8 extends to the outside of the rotary kiln 1. A servo motor 9 is fixedly installed on the base. The output shaft of the servo motor 9 is connected to the rotary kiln 1 for transmission through gears.

[0028] In this invention, the vacuum feeder 2 feeds resin raw materials into the rotary kiln 1, and the feeding amount and speed are controlled by the butterfly valve 3. According to the calcination requirements, the electromagnetic heating coil 7 heats the resin raw materials in the rotary kiln 1. Simultaneously, the servo motor 9 is powered on, using gears to drive the main body of the rotary kiln 1 to rotate, thereby improving the uniformity of heating and agitating the resin raw materials inside the kiln 1. During the calcination process, the left end of the nitrogen distribution pipe 8 is connected to an external nitrogen source, allowing nitrogen to be introduced and evenly distributed inside the rotary kiln 1, creating an inert atmosphere within the kiln. The electromagnetic atmosphere effectively prevents high-temperature resins from oxidizing upon contact with oxygen in the air. This is crucial for the calcination process of some high-temperature resins that have strict requirements for oxygen content, significantly improving product performance and quality and reducing the defect rate caused by oxidation. Compared with traditional fuel heating methods, electromagnetic calcination has advantages such as fast heating speed, uniform heating, and precise temperature control. By using electromagnetic induction to make the material inside the kiln heat up itself, it can effectively avoid the problems of local overheating or underheating, improving calcination efficiency and product quality, while also reducing energy consumption and environmental pollution.

[0029] Please see Figure 1-3 The rotary kiln 1 consists of a kiln head 11, a kiln body 12, and a kiln tail 13. The kiln head 11 and the kiln tail 13 are rotatably connected to the left and right ends of the kiln body 12, respectively. The bottom of the vacuum feeder 2 is fixedly connected to the kiln head 11, and the left side of the pneumatic sealing door 6 is connected to the kiln tail 13.

[0030] In this invention, the kiln body 12 is made convenient to rotate between the kiln head 11 and the kiln tail 13, thereby turning over the material, improving the uniformity of material heating, and improving the calcination quality.

[0031] Please see Figure 1 and Figure 3 The pneumatic sealing door 6 includes a cylinder 61 fixedly installed on the base. The output end of the cylinder 61 extends to the inner side of the kiln tail 13 and is fixedly installed with a sealing plate 62. The sealing plate 62 matches the right side port of the kiln body 12. The bottom of the kiln tail 13 is integrally formed with a high-temperature discharge pipe 131.

[0032] In this invention, the cylinder 61 can control the sealing plate 62 to move closer to or further away from the right side port of the kiln body 12. When the sealing plate 62 is in close contact with the right side port of the kiln body 12, the resin raw material cannot enter the kiln tail 13 from the right side port of the kiln body 12. When the sealing plate 62 moves away from the kiln body 12, the port is opened, and the calcined resin can be discharged through the high-temperature discharge pipe 131 at the bottom of the kiln tail 13. The pneumatic sealing door 6 can effectively ensure the sealing effect during the resin calcination process and prevent external oxygen from entering the kiln body 12 and reacting with the resin.

[0033] Please see Figure 2 and Figure 3 Among them, the kiln head 11 is integrally formed with an exhaust pipe 111, and the nitrogen distribution pipe 8 located inside the rotary kiln 1 has evenly distributed distribution holes.

[0034] In this invention, the exhaust pipe 111 facilitates the discharge of nitrogen from the rotary kiln 1, and the discharged nitrogen is in a high-temperature state due to the calcination effect. The exhaust pipe 111 located at the kiln head 11 ensures that the nitrogen return path can preheat the incoming resin raw materials, thereby facilitating a certain degree of waste heat recovery. At the same time, the centrally discharged nitrogen can be recycled for secondary use and the heat of the nitrogen can be further recovered.

[0035] Please see Figure 1-3 The front support roller assembly 4 and the rear support roller assembly 5 both include a bracket 41. Two drive wheels 42 and two limit wheels 43 are rotatably mounted on the bracket 41. The bottom of the kiln body 12 is in contact with the two drive wheels 42 and the two limit wheels 43.

[0036] In this utility model, the two transmission wheels 42 and the two limiting wheels 43 on the two brackets 41 can support the kiln body 12 from left to right, which not only facilitates the rotation of the kiln body 12, but also ensures that the kiln body 12 will not shake and remains stable.

[0037] Please see Figure 1-3 Among them, wireless temperature sensors 121 are fixedly installed on the kiln body 12 and stirring blades 122 are fixedly installed on the inner wall of the kiln body 12.

[0038] In this invention, the wireless temperature sensor 121 allows for convenient and intuitive real-time monitoring of the heating temperature inside the kiln body 12, thereby facilitating the control system to control the power heating of the electromagnetic heating coil 7. Meanwhile, the stirring blade 122 facilitates the agitation of the resin when the kiln body 12 rotates.

[0039] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A nitrogen-purified, oxidation-preventing high-temperature resin electromagnetic calcination rotary kiln, comprising a rotary kiln (1), characterized in that: A vacuum feeder (2) is fixedly installed on the left side of the top of the rotary kiln (1). A butterfly valve (3) is fixedly installed at the connection between the rotary kiln (1) and the vacuum feeder (2). A base is provided at the bottom of the rotary kiln (1). A front support roller assembly (4) and a rear support roller assembly (5) are fixedly installed on the base. Both the front support roller assembly (4) and the rear support roller assembly (5) are connected to the rotary kiln (1) in a transmission. A pneumatic sealing door (6) is installed on the right side of the rotary kiln (1). An electromagnetic heating coil (7) is fixedly installed on the base. The electromagnetic heating coil (7) is sleeved on the rotary kiln (1). A nitrogen gas distribution pipe (8) is inserted in the rotary kiln (1) and rotatedly connected to it. The left end of the nitrogen gas distribution pipe (8) extends to the outside of the rotary kiln (1). A servo motor (9) is fixedly installed on the base. The output shaft of the servo motor (9) is connected to the rotary kiln (1) in a transmission through a gear.

2. The high-temperature electromagnetic calcination rotary kiln for nitrogen-purified oxidation prevention of resin according to claim 1, characterized in that: The rotary kiln (1) consists of a kiln head (11), a kiln body (12) and a kiln tail (13). The kiln head (11) and the kiln tail (13) are rotatably connected to the left and right ends of the kiln body (12) respectively. The bottom of the vacuum feeder (2) is fixedly connected to the kiln head (11), and the left side of the pneumatic sealing door (6) is connected to the kiln tail (13).

3. The high-temperature electromagnetic calcination rotary kiln for nitrogen-purged anti-oxidation resin according to claim 1, characterized in that: The pneumatic sealing door (6) includes a cylinder (61) fixedly installed on the base. The output end of the cylinder (61) extends to the inner side of the kiln tail (13) and is fixedly installed with a sealing plate (62). The sealing plate (62) matches the right port of the kiln body (12). The bottom of the kiln tail (13) is integrally formed with a high-temperature discharge pipe (131).

4. The high-temperature electromagnetic calcination rotary kiln for nitrogen-purged anti-oxidation resin according to claim 2, characterized in that: The kiln head (11) is integrally formed with an exhaust pipe (111), and the nitrogen distribution pipe (8) located inside the rotary kiln (1) has evenly distributed holes.

5. The high-temperature electromagnetic calcination rotary kiln for nitrogen-purged anti-oxidation resin according to claim 2, characterized in that: Both the front support roller assembly (4) and the rear support roller assembly (5) include a bracket (41), on which two drive wheels (42) and two limiting wheels (43) are rotatably mounted. The bottom of the kiln body (12) is in contact with the two drive wheels (42) and the two limiting wheels (43).

6. The high-temperature electromagnetic calcination rotary kiln for nitrogen-purged anti-oxidation resin according to claim 2, characterized in that: The kiln body (12) is fixedly installed with uniformly distributed wireless temperature sensors (121), and the inner wall of the kiln body (12) is fixedly installed with uniformly distributed stirring blades (122).

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