Atmosphere protection rotary kiln

Abstract

The utility model discloses an atmosphere protection rotary kiln which comprises a base, the left side of the top of the base is fixedly connected with a feeding assembly used for feeding materials to the rotary kiln, one side of the feeding assembly is movably connected with a kiln body working assembly used for processing raw materials, and the kiln body working assembly comprises a feeding pipe movably connected with the feeding assembly. Supporting wheels are fixedly connected to the two sides of the top of the base, a vibration hammer is fixedly connected to the feeding pipe, and a lining composed of an aluminum oxide 99 ceramic pipe or a ceramic chip or a zirconium oxide ceramic chip or a silicon nitride ceramic chip or a silicon carbide ceramic chip and the like is arranged in the metal furnace pipe shell. The utility model relates to the technical field of rotary kilns. According to the atmosphere protection rotary kiln, the kiln body working assembly is arranged, the electric heating wires are distributed on the periphery of the inner wall of the furnace tube shell, embedded in the refractory material and tightly attached to the furnace tube for heating, heating is even, the product quality is high, the length of the heating set is determined according to the actual capacity, and the heating set can be disassembled in a segmented mode and is easy to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, in particular to an atmosphere protection rotary kiln. Background Art

[0002] Environmentally friendly rotary kiln is a kind of rotary kiln equipment. In many production industries such as building materials, metallurgy, chemical industry, environmental protection, etc., rotary kiln equipment is widely used to perform mechanical, physical or chemical treatment on solid materials. This type of equipment is called rotary kiln. The present invention adopts special lining structure and materials.

[0003] The patent with announcement number CN202630662U discloses an atmosphere-protected rotary kiln, which includes a frame, a main kiln and an auxiliary kiln. The main kiln is provided with a main kiln tube, and the auxiliary kiln is provided with an auxiliary kiln tube. The input end of the main kiln tube is connected with a feeding component, and the output end of the auxiliary kiln tube is connected with a discharging component. Furthermore, the output end of the main kiln tube is seamlessly and hermetically connected with the input end of the auxiliary kiln tube, and the main kiln tube and the auxiliary kiln tube are connected with a transmission system and synchronously linked. Compared with the prior art, the patent has the following beneficial effects:

[0004] 1. It can realize atmosphere protection and oxygen-free sintering; 2. It reduces costs and reduces the footprint of equipment; 3. It reduces the failure rate of equipment, improves the reliability of the system, reduces the maintenance of equipment, and reduces operating costs; 4. It saves energy consumption and improves product quality.

[0005] Ordinary lithium iron phosphate materials are directly exposed to the air during recycling and sintering, and ordinary recycling kilns are made of metal. When lithium iron phosphate is sintered at high temperature in the air, it can react with metal to generate harmful pollutants. In addition, the heating wire of the ordinary sintering device is located outside the device, the heating effect is poor, and it is not easy to update and maintain. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides an atmosphere-protected rotary kiln, which solves the problem that harmful pollutants can be generated by reaction with metals during high-temperature sintering. In addition, the heating wire of the ordinary sintering device is located outside the device, the heating effect is poor, and it is difficult to update and maintain.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: an atmosphere-protected rotary kiln, comprising a base, a feeding assembly for feeding the rotary kiln is fixedly connected to the left side of the top of the base, a kiln working assembly for processing raw materials is movably connected to one side of the feeding assembly, the kiln working assembly comprises a feeding pipe movably connected to the feeding assembly, support wheels are fixedly connected to the two sides of the top of the base, an oscillation hammer is fixedly connected to the feeding pipe, a furnace tube shell is connected to the right end of the feeding pipe, the number of the furnace tube shells is set to be multiple, the furnace tube shell is made of metal steel plate, the metal steel plate is circular, an inner lining plate is fixedly connected to the inner wall of the furnace tube shell, an electric heating wire is arranged on the inner surface of the inner lining plate, a discharge pipe is connected to the right side of the furnace tube shell, and a protective assembly for avoiding oxidation is fixedly connected to the right side of the top of the base.

[0008] Preferably, the feeding assembly includes a supporting platform fixedly connected to the left side of the top of the base, a raw material storage bin fixedly connected to the top of the supporting platform, the bottom of the raw material storage bin is connected to a screw feeder, the surface of the screw feeder is covered with a protective shell, and an exhaust pipe is opened on one side of the top of the protective shell.

[0009] Preferably, the protection assembly includes a spray mechanism connected to the kiln body working assembly, one end of the spray mechanism is connected to a rotary seal, one side of the rotary seal is connected to a sealing cabin, and the surface of the sealing cabin is connected to a first cylinder.

[0010] Preferably, one side of the sealed cabin is connected to a first sealed gate, and a second cylinder is provided on the surface of the first sealed gate.

[0011] Preferably, one side of the sealed cabin is connected to a transition bin, one side of the transition bin is connected to a material receiving port, and the surface of the transition bin is connected to a third cylinder.

[0012] Preferably, one side of the transition chamber is connected to a second sealing gate, and a fourth cylinder is provided on the surface of the second sealing gate.

[0013] Beneficial Effects

[0014] The utility model provides an atmosphere protection rotary kiln. Compared with the prior art, it has the following beneficial effects:

[0015] (1) The atmosphere protection rotary kiln is movably connected to a kiln body working assembly for processing raw materials through one side of the feeding assembly. The kiln body working assembly includes a feeding pipe movably connected to the feeding assembly, support wheels are fixedly connected to the two sides of the top of the base, an oscillation hammer is fixedly connected to the feeding pipe, and the right end of the feeding pipe is connected to a furnace tube shell. The number of furnace tube shells is set to be multiple. The material of the furnace tube shell is a metal steel plate, and the metal steel plate is circular. The inner wall of the furnace tube shell is fixedly connected to an inner lining plate, and the inner surface of the inner lining plate is provided with an electric heating wire. The right side of the furnace tube shell is connected to a discharge pipe. By utilizing the setting of the kiln body working assembly, the electric heating wire is arranged around the inner wall of the furnace tube shell and embedded in the refractory material. It is close to the furnace tube for heating, and the heating is uniform. The product quality is high. The length of the heating group is determined according to the actual production capacity. The heating group can be disassembled in sections and is easy to maintain. The furnace tube shell is made of non-metallic material and is corrosion-resistant. The furnace tube shell is spliced ​​in sections and can be replaced in sections for easy maintenance.

[0016] (2) The atmosphere protection rotary kiln comprises a raw material storage bin fixedly connected to the top of the supporting platform, the bottom of the raw material storage bin is connected to a spiral feeder, the surface of the spiral feeder is covered with a protective shell, one side of the top of the protective shell is provided with an exhaust pipe, the protection component comprises a spray mechanism connected to the kiln body working component, one end of the spray mechanism is connected to a rotary seal, one side of the rotary seal is connected to a sealed cabin, the surface of the sealed cabin is connected to a first cylinder, one side of the sealed cabin is connected to a first sealed gate, the surface of the first sealed gate is provided with a second cylinder, one side of the sealed cabin is connected to a transition chamber, and the transition chamber is connected to a first cylinder. One side of the bin is connected to a material receiving port, the surface of the transition bin is connected to a third cylinder, one side of the transition bin is connected to a second sealing gate, and the surface of the second sealing gate is provided with a fourth cylinder. By utilizing the setting of the protection component, when the device is working, through the cooperation between each cylinder and the gate, it can provide effective inert gas atmosphere protection, and the operating steps are clear and reliable, effectively avoiding the negative effects caused by operations such as leakage, and is not easily contaminated by harmful substances; the atmosphere protection is not oxidized, and through the input of the feeding component, it can ensure that the material is continuously transported to the working device, effectively ensuring stable production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the feeding assembly of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the working components of the kiln body of the utility model;

[0020] Figure 4 It is a cross-sectional view of the inner lining plate structure of the utility model;

[0021] Figure 5 For this utility model Figure 4 A partial enlarged view of the middle A;

[0022] Figure 6 It is a schematic diagram of the structure of the protection component of the utility model;

[0023] Figure 7 It is a top view of the protection component structure of the utility model.

[0024] In the figure: 1. base; 2. feeding assembly; 21. bearing platform; 22. raw material storage bin; 23. spiral feeder; 24. protective shell; 25. exhaust pipe; 3. kiln body working assembly; 31. feeding pipe; 32. supporting wheel; 33. oscillating hammer; 34. furnace tube shell; 35. lining plate; 36. heating wire; 37. discharge pipe; 4. protective assembly; 41. spray mechanism; 42. rotating seal; 43. sealing cabin; 44. first cylinder; 45. first sealing gate; 46. second cylinder; 47. transition bin; 48. third cylinder; 49. second sealing gate; 410. fourth cylinder; 411. material receiving port. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-7 , the utility model provides two technical solutions:

[0027] Embodiment 1, atmosphere protection rotary kiln, comprises base 1, the left side of the top of base 1 is fixedly connected with feeding assembly 2 for feeding rotary kiln, one side of feeding assembly 2 is movably connected with kiln body working assembly 3 for processing raw materials, kiln body working assembly 3 comprises feeding pipe 31 movably connected with feeding assembly 2, two sides of the top of base 1 are fixedly connected with supporting wheels 32, the top of supporting wheel 32 is movably connected with the surface of feeding pipe 31 and discharging pipe 37, feeding pipe 31 is fixedly connected with oscillating hammer 33 for knocking dampened and compacted materials to assist them to fall and avoid congestion of pipeline, the right end of feeding pipe 31 is connected with furnace tube shell 34, the number of furnace tube shell 34 is set to be multiple, and furnace tube shell 34 is connected with non-bolts. The metal sealing ring is connected, the furnace tube shell 34 is made of metal steel plate, the metal steel plate is circular, the inner wall of the furnace tube shell 34 is fixedly connected with an inner lining plate 35, the inner surface of the inner lining plate 35 is provided with a heating wire 36, the right side of the furnace tube shell 34 is connected with a discharge pipe 37, and the right side of the top of the base 1 is fixedly connected with a protection component 4 for avoiding oxidation. By utilizing the setting of the kiln body working component 3, the heating wire 36 is arranged around the inner wall of the furnace tube shell 34 and embedded in the refractory material, close to the furnace tube for heating, uniform heating, high product quality, and the length of the heating group is determined according to the actual production capacity. The heating group can be disassembled in sections for easy maintenance. The furnace tube shell 34 is made of non-metallic material and is corrosion-resistant; and the furnace tube shell 34 is spliced ​​in sections and can be replaced in sections for easy maintenance.

[0028] Embodiment 2 is mainly different from Embodiment 1 in that: the atmosphere is protected in the rotary kiln, the feeding assembly 2 comprises a bearing platform 21 fixedly connected to the left side of the top of the base 1, a raw material storage bin 22 fixedly connected to the top of the bearing platform 21, a spiral feeder 23 is connected to the bottom of the raw material storage bin 22, a protective shell 24 is provided on the surface of the spiral feeder 23, an exhaust pipe 25 is provided on one side of the top of the protective shell 24, the protection assembly 4 comprises a spray mechanism 41 connected to the kiln body working assembly 3, one end of the spray mechanism 41 is connected to a rotary seal 42, one side of the rotary seal 42 is connected to a sealed cabin 43, the surface of the sealed cabin 43 is connected to a first cylinder 44, one side of the sealed cabin 43 is connected to a first sealed gate 45, the surface of the first sealed gate 45 is connected to the first cylinder 44, the first sealed gate 45 is connected to the first cylinder 44, and the first sealed gate 45 is connected to the first cylinder 44. A second cylinder 46 is arranged on the surface, a transition bin 47 is connected to one side of the sealed cabin 43, a material receiving port 411 is connected to one side of the transition bin 47, a third cylinder 48 is connected to the surface of the transition bin 47, a second sealing gate 49 is connected to one side of the transition bin 47, and a fourth cylinder 410 is arranged on the surface of the second sealing gate 49. By utilizing the setting of the protection component 4, when the device is working, the cooperation between each cylinder and the gate can provide effective protection by the inert gas atmosphere, and the operation steps are clear and reliable, effectively avoiding the negative effects caused by operations such as air leakage, and not easily contaminated by harmful substances; the atmosphere protection is not oxidized, and through the input of the feeding component 2, it can ensure that the material is continuously transported to the working device, effectively ensuring stable production.

[0029] The inner lining of the shell with a furnace diameter of less than 300mm is 99 porcelain tubes, and the diameter of the furnace is 500mm to 3 meters. The metal furnace tube shell is equipped with an inner lining composed of alumina 99 porcelain tubes or porcelain pieces or zirconium oxide ceramic pieces or silicon nitride, silicon carbide ceramic pieces, etc., and the raw materials do not react with the raw materials. The length varies from a few meters to tens of meters according to the production capacity requirements. It is assembled in sections and is corrosion-resistant. It is equipped with an integral metal steel plate cylindrical shell on the outside, which rotates as a whole. The outer shell section is equipped with an opening inspection door. The inclination angle of 3-10 degrees and the rotation rate of 1-10 rpm are continuously adjustable, and the furnace tube shell is arranged to be sealed and connected in multiple sections.

[0030] This technical solution is aimed at the heat treatment of sintering materials that require atmosphere protection, such as lithium battery powder, recycling of waste lithium battery powder and atmosphere protection sintering of various metal ion-averse materials.

[0031] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0032] During operation, raw materials are loaded into the raw material storage bin 22, the spiral feeder 23 rotates, and the raw materials continuously enter the furnace tube shell 34. The furnace tube shell 34 drives the transmission wheel to rotate through an external reducer. The raw materials enter the sealed cabin 43 (the inclination angle of the furnace tube shell 34 is adjustable) from the discharge port at the bottom of the discharge pipe 37 after sintering, and the protective gas enters the furnace tube from the sealed cabin 43. When a certain amount of product enters the sealed cabin 43, the second cylinder 46 opens the gate base 1, the first cylinder 44 pushes the product to the transition bin 47 and then returns to the original position, the first sealed gate 45 is closed, and then the fourth cylinder 410 opens the second sealed gate 49, and the third cylinder 48 pushes the product to the receiving port 411 and then returns to the original position. After the use of the device is over, the device is restored.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An atmosphere-protected rotary kiln, comprising a base (1), characterized in that: A feeding assembly (2) for feeding materials to the rotary kiln is fixedly connected to the left side of the top of the base (1); a kiln body working assembly (3) for processing raw materials is movably connected to one side of the feeding assembly (2); the kiln body working assembly (3) includes a feeding pipe (31) movably connected to the feeding assembly (2); support wheels (32) are fixedly connected to both sides of the top of the base (1); an oscillating hammer (33) is fixedly connected to the feeding pipe (31); and a right end of the feeding pipe (31) is connected to the A furnace tube shell (34) is provided, the number of the furnace tube shells (34) is set to be multiple, the material of the furnace tube shell (34) is a metal steel plate, the metal steel plate is circular, the inner wall of the furnace tube shell (34) is fixedly connected to an inner lining plate (35), the inner surface of the inner lining plate (35) is provided with a heating wire (36), the right side of the furnace tube shell (34) is connected to a discharge pipe (37), and the right side of the top of the base (1) is fixedly connected to a protective component (4) for preventing oxidation.

2. The atmosphere protection rotary kiln according to claim 1, characterized in that: The feeding assembly (2) comprises a bearing platform (21) fixedly connected to the left side of the top of the base (1); a raw material storage bin (22) fixedly connected to the top of the bearing platform (21); a screw feeder (23) is connected to the bottom of the raw material storage bin (22); a protective shell (24) is provided on the surface of the screw feeder (23); and an exhaust pipe (25) is provided on one side of the top of the protective shell (24).

3. The atmosphere protection rotary kiln according to claim 1, characterized in that: The protection component (4) comprises a spray mechanism (41) connected to the kiln body working component (3); one end of the spray mechanism (41) is connected to a rotating seal (42); one side of the rotating seal (42) is connected to a sealing cabin (43); and the surface of the sealing cabin (43) is connected to a first cylinder (44).

4. The atmosphere protection rotary kiln according to claim 3, characterized in that: One side of the sealed cabin (43) is connected to a first sealed gate (45), and a second cylinder (46) is provided on the surface of the first sealed gate (45).

5. The atmosphere protection rotary kiln according to claim 3, characterized in that: One side of the sealed cabin (43) is connected to a transition chamber (47), one side of the transition chamber (47) is connected to a material receiving port (411), and the surface of the transition chamber (47) is connected to a third cylinder (48).

6. The atmosphere protection rotary kiln according to claim 5, characterized in that: One side of the transition chamber (47) is connected to a second sealing gate (49), and a fourth cylinder (410) is provided on the surface of the second sealing gate (49).

Images